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The role of m6A RNA methylation in human cancer

Molecular Cancer volume 18, Article number: 103 (2019) Cite this article

Abstract

N6-methyladenosine (m6A) is identified as the most common, abundant and conserved internal transcriptional modification, especially within eukaryotic messenger RNAs (mRNAs). M6A modification is installed by the m6A methyltransferases (METTL3/14, WTAP, RBM15/15B and KIAA1429, termed as “writers”), reverted by the demethylases (FTO and ALKBH5, termed as “erasers”) and recognized by m6A binding proteins (YTHDF1/2/3, IGF2BP1 and HNRNPA2B1, termed as “readers”). Acumulating evidence shows that, m6A RNA methylation has an outsize effect on RNA production/metabolism and participates in the pathogenesis of multiple diseases including cancers. Until now, the molecular mechanisms underlying m6A RNA methylation in various tumors have not been comprehensively clarified. In this review, we mainly summarize the recent advances in biological function of m6A modifications in human cancer and discuss the potential therapeutic strategies.

Introduction

According to MODOMICS, 163 different chemical modifications in RNA have been identified in all living organisms by the end of 2017 [1]. Among these modifications, N6-methyladenosine (m6A), methylated at the N6 position of adenosine, has been considered as the most pervasive, abundant and conserved internal transcriptional modification within eukaryotic messenger RNAs (mRNAs) [2], microRNAs (miRNAs) [3] and long non-coding RNAs (lncRNAs) [4]. RNA m6A is enriched near stop codon and 3′ untranslated terminal region (UTR) [5, 6] and translated near 5′ UTR in a cap-independent manner [7], thereby affecting RNA transcription, processing, translation and metabolism.

The deposition of m6A is encoded by a methyltransferase complex involving three homologous factors jargonized as ‘writers’, ‘erasers’ and ‘readers’ (Fig. 1). Methyltransferase-like 3 (METTL3) [8], METTL14 [9], Wilms tumor 1-associated protein (WTAP) [10], RBM15/15B [11] and KIAA1429 [12] are categorized as the components of ‘writers’ that catalyze the formation of m6A; ‘erasers’, fat mass and obesity-associated protein (FTO) [13] and alkB homologue 5 (ALKBH5) [14], selectively remove the methyl code from target mRNAs; ‘Readers’ are capable of decoding m6A methylation and generating a functional signal, including YT521-B homology (YTH) domain-containing protein [15], eukaryotic initiation factor (eIF) 3 [11], IGF2 mRNA binding proteins (IGF2BP) families [16] and heterogeneous nuclear ribonucleoprotein (HNRNP) protein families [17]. YTH domain can recognize m6A through a conserved aromatic cage [18] and another two proteins FMR1, LRPPRC “read” this modification [19, 20]. Contrary to the conventional ‘writer’-‘eraser’-‘reader’ paradigm, few studies reveal METTL3/16 as a m6A ‘writer’ or ‘reader’ [21].

Fig. 1
figure 1

Molecular composition of m6A RNA methylation. M6A methylation is a dynamic and reversible process coordinated by a series of methyltransferases (METTL3/14, WTAP, RBM15/15B, and KIAA1429, termed as “m6A writers”), demethylases (FTO and ALKBH5, “m6A erasers”) and identifiers (YTHDF1/2/3, YTHDC1, HNRNPA2B1, HNRNPC, eIF3, FMR1, and LRPPRC, “m6A. ‘Readers”)

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M6A RNA modification is a dynamic and reversible process which was corroborated by the discovery of ‘eraser’ in 2011 [13]. It is associated with multiple diseases such as obesity, infertility and cancer [22]. In this review, we summarize the function and therapeutic advances of m6A modifications in human cancer and provide their promising applications in the treatment of these malignant tumors (Table 1).

Table 1 Multiple functions exerted by m6A RNA methylation in various diseases
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Biological function of m6A modification in mammals

Recent years have witnessed a substantial progress of m6A post-transcriptional modification in regulating RNA transcription [23, 24], processing event [25,26,27], splicing [28,29,30,31,32,33], RNA stabilities [34,35,36,37,38,39,40] and translation [42,43,44,45,46,47,48,49] (Fig. 2).

Fig. 2
figure 2

Regulatory Functions of m6A modification in RNA splicing, processing, translation and degradation. M6A RNA modification is involved in regulating the life cycle of RNA including RNA splicing (regulated by WTAP, FTO, ALKBH5 and YTHDC1), RNA processing (regulated by METTL3/14 and ALKBH5), RNA translation (regulated by METTL3, YTHDF1/3, eIF3 and FMR1) and RNA degradation (regulated by YTHDF2)

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M6A modification in RNA transcript

METTL3 and FTO are implicated in regulating transcription of CCAAT-enhancer binding protein (CEBP) family. METTL3 is localized to the starting sites of CEBPZ, which is required for recruitment of METTL3 to chromatin [23]. CEBPA is identified as an exclusive transcription factor displaying a positive correlation with FTO and regulating its transcription in acute myeloid leukemia (AML) [24].

M6A modification in RNA processing

M6A modifications promote the initiation of miRNA biogenesis [3] and regulate nuclear mRNA processing events [25]. METTL3 recognizes the pri-miRNAs by microprocessor protein DGCR8 and causes the elevation of mature miRNAs and concomitant reduction of unprocessed pri-miRNAs in breast cancer [3]. METTL14 interacts with DGCR8 to modulate pri-miR-126 and suppresses the metastatic potential of hepatocellular carcinoma (HCC) [26]. FTO can regulate poly(A) site and 3′ UTR length by interacting with METTL3 [25]. YTHDC1 knockout in oocytes exhibits massive defects and contributes to extensive alternative polyadenylation and 3′ UTR length alterations [27].

M6A modification in RNA splicing

M6A RNA modifications that overlap in space with the splicing enhancer regions affect alternative RNA splicing by acting as key pre-mRNA splicing regulators [28]. Inhibiton of m6A methyltransferase impacts gene expression and alternative splicing patterns [29]. FTO regulates nuclear mRNA alternative splicing by binding with SRSF2 [25]. FTO and ALKBH5 regulate m6A around splice sites to control the splicing of Runt-related transcription factor 1 (RUNX1T1) in exon [28], and removal of m6A by FTO reduces the recruitment of SRSF2 and prompts the skipping of exon 6, leading to a short isoform of RUNX1T1 [30]. Depletion of METTL3 is associated with RNA splicing in pancreatic cancer [31]. WTAP is enriched in some proteins involved in pre-mRNA splicing [32]. But, some studies show that, M6A is not enriched at the ends of alternatively spliced exons and METTL3 unaffects pre-mRNA splicing in embryonic stem cells [33].

M6A modification in RNA degradation

M6A is a determinant of cytoplasmic mRNA stability [34], and reduces mRNA stability [35]. A RNA decay monitoring system is adopted to investigate the effects of m6A modifications on RNA degradation [36]. Knockdown of METTL3 abolishes SOCS2 m6A modification and augments SOCS2 expression [37]. M6A-mediated SOCS2 degradation also relies on m6A ‘reader’ YTHDFs [37], which accelerate the decay of m6A-modified transcripts [38] or target mRNA [39]. Knockout of m6A methyltransferase attenuates YTHDF2 specific binding with target mRNAs and increases their stability [40]. M6A RNA methylation also controls T cell homeostasis by targeting the IL-7/STAT5/SOCS pathways [41] and decreases the stability of MYC/CEBPA transcripts [24].

M6A modification in RNA translation

M6A modifications occur in mRNA and noncoding RNA (ncRNAs) to regulate gene expression in its 5′ or 3′ UTR [7, 42]. METTL3 enhances mRNA translation [8], while depletion of METTL3 selectively inhibits mRNAs translation in 5′UTR [43] and reduces AFF4 and MYC translation in bladder cancer [44] but increase that of zinc finger protein 750 and fibroblast growth factor 14 in nasopharyngeal carcinoma [45].

M6A modifications facilitate the initiated translation through interacting with the initiation factors eIF3, CBP80 and eIF4E in an RNA-independent manner [46]. Heat-shock-induced translation of heat-shock protein 70 (HSP70) alters the transcriptome-wide distribution of m6A [7] and affects DNA repair [47]. ABCF1-sensitive transcripts largely overlaps with METTL3-modified mRNAs and are critical for m6A-regulated mRNA translation [43]. In addition, FMR1 binds to hundreds of mRNAs to negatively regulate their translation [20]. YTHDF1 facilitates the translation of m6A-modified mRNAs in protein-synthesis and YTHDF3 acts in the initial stage of m6A-driven translation from circular RNAs (circRNAs) [38, 48, 49].

M6A RNA modification in metabolic and developmental diseases

The methyltransferases and demethylases of m6A are associated with a variety of diseases, such as obesity [13, 50], type 2 diabetes mellitus (T2DM) [51], growth retardation, developmental delay, facial dysmorphism [52]. Besides, m6A modification affects infertility [14], developmental arrest [22], neuronal disorder [53] and infectious diseases [54, 55].

M6A modification in metabolic and infectious diseases

M6A modification is involved in metabolic abnormalities in patients with T2DM and obesity [56]. FTO regulates the energy homeostasis and dopaminergic pathway through FTO-dependent m6A demethylation [50, 51], and it is ubiquitous in adipose and muscle tissues, influencing RUNX1T1 splicing in adipogenesis [28, 30]. METTL3/14 reduce the abundance of Hepatitis C virus replication, but FTO promotes its production through YTHDF proteins [54]. M6A is also identified as a conserved modulatory symbol across Flaviviridae genomes, including dengue, Zika virus and West Nile virus [55].

M6A modification in infertility

Deficiency of demethylase ALKBH5 leads to the aberrant spermatogenesis and apoptosis with impaired fertility in testes and striking changes in DNA methyltransferase 1 (Dnmt1) and ubiquitin-like with PHD and RING finger domains 1 (Uhrf1) [14]. YTHDF2 is required for maternal transcriptome during oocyte maturation [57]. YTHDC1/2 determine the germline development in mouse [58], and YTHDC1 is essential for spermatogonia in males and oocyte maturation in females [27].

M6A modification in nervous system development

M6A modification regulates the pace of cerebral cortex development [59] and m6A-regulated histone modifications enhances self-renewal of neural stem cells by METTL3/14 [60]. M6A has dual effects on delaying tempo of corticogenesis by two distinct pathways: increased cell-cycle length and decreased mRNA decay [59]. M6A depletion decreases the decay of radial glia cells associated with stem cell maintenance, neurogenesis and differentiation [61].

M6A modification in inflammation and metabolism-related cancer

Cacinogenesis is characterized by stepwise accumulation of genetic/epigenetic alterations of different proto-oncogenes and tumor-suppressor genes following other diseases including chronic inflammation and metabolic diseases. METTL3/14 and FTO influence Hepatitis C virus replication and production, and endogenous mediators of inflammatory responses (proinflammatory cytokines, reactive oxygen, et al) can promote genetic/epigenetic alterations [62]. FTO affects RUNX1T1 splicing in adipogenesis [28, 30], and RUNX1T1 is essential for pancreas development [63]. Transcription factor forkhead box protein O1 (FOXO1) as another direct substrate of FTO, regulates gluconeogenesis in liver [64] and promotes the growth of pancreatic ductal adenocarcinoma [65].

M6A RNA modification in human cancer

Emerging evidence suggests that, m6A modification is associated with the tumor proliferation, differentiation, tumorigenesis [46], proliferation [66], invasion [46] and metastasis [26] and functions as oncogenes or anti-oncogenes in malignant tumors (Table 1 and Fig. 3).

Fig. 3
figure 3

The role of m6A RNA modification in human cancer. M6A RNA modification is associated with the tumorigenesis of multiple malignancies including AML, GBM, HCC, CRC, NPC, breast cancer, lung cancer, pancreatic cancer, bladder cancer and endometrial cancer

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Acute myeloid leukemia (AML)

FTO is highly expressed in AML with t(11q23)/MLL rearrangements, t(15;17)/PML-RARA, FLT3-ITD and/or NPM1 mutations and promotes leukemic cell transformation and tumorigenesis [67]. METTL3/14 are expressed in hematopoietic stem/progenitor cells (HSPCs) and AML cells with t(11q23), t(15;17), or t(8;21), control the terminal myeloid differentiation of HSPCs and promote the survival and proliferation of AML [68]. WTAP acts in cell proliferation and arrests the differentiation of leukemia [69].

M6A promotes the translation of c-MYC, BCL2 and PTEN in AML [70]. METTL14 acts an oncogenic role by regulating its targets MYB/MYC through m6A modification [68]. YTHDF2, responsible for the decay of m6A-modified mRNA transcripts [40], is also associated with MYC in leukemia [71]. Besides, YTHDF2 stabilizes Tal1 mRNAs and increases its expansion in AML [72].

Collectively, these studies corroborate the functional importance of m6A modifications in leukemia, such as METTL3 [23, 70], METTL14 [68], FTO [24, 67] and YTHDF2 [24, 40] and they provide profound insights into development and maintenance of AML and self-renewal of leukemia stem/initiation cells through the downstream MYC and Tal1 pathways.

Glioblastoma (GBM)

METTL3/14 inhibit GSC growth, self-renewal and tumorigenesis, but FTO and ALKBH5 indicate poor survival in GBM by regulating ADAM19 and transcription factor FOXM1 [73, 74]. LncRNA antisense to FOXM1 (FOXM1-AS) promotes the interaction of ALKBH5 with FOXM1 nascent transcripts in the tumorigenesis of GSCs [73].

Lung cancer

M6A demethylase FTO is identified as a prognostic factor in lung squamous cell carcinoma (LUSC) and facilitates cell proliferation and invasion, but inhibits cell apoptosis by regulating MZF1 expression [75]. METTL3 acts as a oncogene in lung cancer by increasing EGFR and TAZ expression and promoting cell growth, survival and invasion [46]. METTL3-eIF3 caused mRNA circularization promotes the translation and oncogenesis of lung adenocarcinoma [46]. Besides, SUMOylation of METTL3 is of importance for the promotion of tumor growth at lysine residues K177, K211, K212 and K215 in non-small cell lung carcinoma (NSCLC) [76]. These studies provide insights into the critical roles of METTL3 and FTO in lung carcinoma.

Hepatocellular carcinoma (HCC)

METTL3 is related to a poor prognosis in HCC patients and promotes HCC cell proliferation, migration and colony formation by YTHDF2-dependent posttranscriptional silencing of SOCS2 [37]. But, METTL14 is an anti-metastatic factor and serves as a favorable factor in HCC by regulating m6A-dependent miRNA processing [26]. MiR-145 down-regulates YTHDF2 through targeting its mRNA 3′ UTR [77]. In conclusion, METTL3 upregulation or METTL14 downregulation predicts poor prognosis in patients with HCC and contributes to HCC progression and metastasis [26, 37]. METTL3 suppresses SOCS2 expression in HCC via the miR-145/m6A/YTHDF2 dependent axis [37, 77]. Thus, these studies suggest a new dimension of epigenetic alteration in liver carcinogenesis.

Breast cancer and colorectal cancer (CRC)

METTL3 is associated with the expression of mammalian hepatitis B X-interacting protein (HBXIP), displaying an aggressiveness in breast cancer. HBXIP-induced METTL3 promotes the proliferation of breast cancer via inhibiting tumor suppressor let-7 g [78]. Besides, ALKBH5 decreases the levels of m6A in NANOG mRNA and enhances its stability, leading to an increase of NANOG mRNA and protein levels in breast cancer stem cells (BCSCs) [79]. Another m6A eraser ‘FTO’ polymorphism has no association with the risk of CRC [80], but the m6A ‘writer’ WTAP is associated with carbonic anhydrase IV (CA4), which inhibits the proliferation and induces apoptosis and cycle arrest by repressing the Wnt signaling through targeting the WTAP-WT1-TBL1 axis [81].

Brief summary of m6A modification-related carcinogenesis

M6A RNA modifications regulate RNA production/metabolism and take part in the carcinogenesis. On the one hand, m6A-modified genes usually act a oncogenic role in cancer, leading to alterations of mRNA translation and acceleration of tumor progression, and decreasing m6A modification results in tumor development. On the other hand, given that SUMOylation of METTL3 represses its m6A methyltransferase capacity and results in tumor growth of NSCLC, modification of m6A methylase can determine the tumor development.

M6A modification in cancer treatment

M6A modification indicates new directions for the treatment of various cancers. Regulators or inhibitors of m6A modifications may provide the potential therapeutic strategies for cancers, such as MA2 in GBM [74], R-2HG/SPI1/FB23–2 in AML [24, 68, 82] and CA4 in CRC [81]. Meclofenamic acid (MA) as one of the selective FTO inhibitors is a non-steroidal anti-inflammatory drug by competing with FTO binding sites [83]. MA2, the ethyl ester derivative of MA, increases m6A modification, leading to the suppression of tumor progression [74, 83]. The expression of ASB2 and RARA is increased in hematopoiesis and they act as key regulators of ATRA-induced differentiation of leukemia cells [84]. FTO enhances the leukemogenesis of AML by inhibition of the ASB2 and RARA expression [67]. FB23–2, as another inhibitor of m6A demethylase FTO suppresses AML cell proliferation and promotes the cell differentiation and apoptosis [82].

ALKBH5 and FTO are α-ketoglutarate (α-KG)-dependent dioxygenases [85], which are competitively inhibited by D2-hydorxyglutarate (D2-HG) and elevated in isocitrate de-hydrogenases (IDH)-mutant cancers for transferring isocitrate to α-KG [86]. R-2-hydroxyglutarate (R-2HG), an metabolite by mutating IDH1/2 enzyme, exhibits anti-leukemia effects through increasing m6A levels in R-2HG-sensitive AML [24].

S-adenosylmethionine (SAM) serves as a cofactor substrate in METTL3/14 complex and its product S-adenosylhomocysteine (SAH) inhibits the methyltransferases by competing with adenosylmethionine [87]. 3-deazaadenosine (DAA) inhibits SAH hydrolase and interrupts insertion of m6A into mRNA substrates [88] and its analogs suppress the replication of various viruses editing m6A- mRNA in cancers [89, 90].

METTL14 acts an oncogenic role by regulating MYB/MYC axis through m6A modification [68]. SPI1, a hematopoietic transcription factor, directly inhibits METTL14 expression in malignant hematopoietic cells [68] and may be a potential therapeutic target for AML. CA4 inhibits the tumorigenicity of CRC by suppressing the WTAP-WT1-TBL1 axis [81].

Future prospect

M6A RNA modifications act by regulating RNA transcript, splicing, processing, translation and decay and participate in the tumorigenesis and metastasis of multiple malignancies. However, the underlying mechanisms of m6A modifications in cancer should be further addressed.. Besides FMR1 and LRPPRC, the function of ALKBH family in m6A RNA methylation is undetermined. METTL14 has different expression levels in various tumor tissues. Given a dual role of METTL14 either as a tumor suppressor [26] or an oncogene in cancer [68], its role in other cancers need be further elucidated. Though some inhibitors of m6A methylation have shown promising effects on cancer development [68, 81], novel therapeutic strategies for m6A RNA methylation should be further explored in the treatment of cancer.

Availability of data and materials

All data generated or analyzed during this study are included in this published article and its additional files.

Abbreviations

ALKBH5:

Alkb homologue 5

AML:

Acute myeloid leukemia

BCLAF1:

BCL2-associated transcription factor 1

BCSCs:

Breast cancer stem cells

CA4:

Carbonic anhydrase IV

CEBP:

CCAAT-enhancer binding protein

circRNAs:

Circular RNAs

CRC:

Colorectal cancer

D2-HG:

D2-hydorxyglutarate

DAA:

3-deazaadenosine

Dnmt1:

DNA methyltransferase 1

eIF:

eukaryotic initiation factor

FGF14:

Fibroblast growth factor 14

FOXM1-AS:

Antisense to FOXM1

FOXO1:

Forkhead box protein O1

FTO:

Fat mass and obesity-associated protein

GSCs:

Glioblastoma stem-like cells

HBXIP:

Hepatitis B X-interacting protein

HCC:

Hepatocellular carcinoma

HNRNP:

Heterogeneous nuclear ribonucleoprotein

HSP70:

Heat-shock protein 70

HSPCs:

Hematopoietic stem/progenitor cells

IDH:

Isocitrate de-hydrogenases

IGF2BP:

IGF2 mRNA binding proteins

lncRNAs:

Long non-coding RNAs

LUSC:

Lung squamous cell carcinoma

m6A:

N6-methyladenosine

MA:

Meclofenamic acid

METTL3:

Methyltransferase-like 3

miRNAs:

Micro RNAs

mRNAs:

Messenger RNAs

ncRNAs:

Noncoding RNAs

NSCLC:

Non-small cell lung carcinoma

R-2HG:

R-2-hydroxyglutarate

RUNX1T1:

Runt-related transcription factor 1

SAH:

S-adenosylhomocysteine

SAM:

S-adenosylmethionine

SOCS2:

Suppressor of cytokine signaling 2

SRSF:

serine/arginine-rich splicing factor

T2DM:

Type 2 diabetes mellitus

THRAP3:

Thyroid hormone receptor-associated protein 3

Uhrf1:

Ubiquitin-like with PHD and RING finger domains 1

UTR:

Untranslated terminal region

WTAP:

Wilms tumour 1-associated protein

YTHDF:

YT521-B homology domain-containing protein family

ZNF750:

Zinc finger protein 750

α-KG:

Α-ketoglutarate

References

  1. Boccaletto P, Machnicka MA, Purta E, Piątkowski P, Bagiński B, Wirecki TK, et al. MODOMICS: a database of RNA modification pathways 2017 update. Nucleic Acids Res. 2018;46(Database issue):D303–7.

    Article  CAS  PubMed  Google Scholar 

  2. Desrosiers R, Friderici K, Rottman F. Identification of methylated nucleosides in messenger RNA from Novikoff hepatoma cells. Proc Natl Acad Sci U S A. 1974;71(10):3971–5.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  3. Alarcón CR, Lee H, Goodarzi H, Halberg N, Tavazoie SF. N6-methyladenosine marks primary microRNAs for processing. Nature. 2015;519(7544):482–5.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  4. Patil DP, Chen CK, Pickering BF, Chow A, Jackson C, Guttman M, et al. m6A RNA methylation promotes XIST-mediated transcriptional repression. Nature. 2016;537(7620):369–73.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  5. Meyer KD, Saletore Y, Zumbo P, Elemento O, Mason CE, Jaffrey SR. Comprehensive analysis of mRNA methylation reveals enrichment in 3′ UTRs and near stop codons. Cell. 2012;149(7):1635–46.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  6. Ke S, Alemu EA, Mertens C, Gantman EC, Fak JJ, Mele A, et al. A majority of m6A residues are in the last exons, allowing the potential for 3′ UTR regulation. Genes Dev. 2015;29(19):2037–53.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  7. Meyer KD, Patil DP, Zhou J, Zinoviev A, Skabkin MA, Elemento O, et al. 5′ UTR m6A promotes cap-independent translation. Cell. 2015;163(4):999–1010.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  8. Schumann U, Shafik A, Preiss T. METTL3 gains R/W access to the Epitranscriptome. Mol Cell. 2016;62(3):323–4.

    Article  CAS  PubMed  Google Scholar 

  9. Liu J, Yue Y, Han D, Wang X, Fu Y, Zhang L, et al. A METTL3-METTL14 complex mediates mammalian nuclear RNA N6-adenosine methylation. Nat Chem Biol. 2014;10(2):93–5.

    Article  CAS  PubMed  Google Scholar 

  10. Ping XL, Sun BF, Wang L, Xiao W, Yang X, Wang W-J, et al. Mammalian WTAP is a regulatory subunit of the RNA N6-methyladenosine methyltransferase. Cell Res. 2014;24(2):177–89.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  11. Meyer KD, Jaffrey SR. Rethinking m(6)a readers, writers, and erasers. Annu Rev Cell Dev Biol. 2017;33:319–42.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  12. Schwartz S, Mumbach MR, Jovanovic M, Wang T, Maciag K, Bushkin GG, et al. Perturbation of m6A writers reveals two distinct classes of mRNA methylation at internal and 5′ sites. Cell Rep. 2014;8(1):284–96.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  13. Jia G, Fu Y, Zhao X, Dai Q, Zheng G, Yang Y, et al. N6-Methyladenosine in nuclear RNA is a major substrate of the obesity-associated FTO. Nat Chem Biol. 2011;7(12):885–7.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  14. Zheng G, Dahl JA, Niu Y, Fedorcsak P, Huang C-M, Li CJ, et al. ALKBH5 is a mammalian RNA demethylase that impacts RNA metabolism and mouse fertility. Mol Cell. 2013;49(1):18–29.

    Article  CAS  PubMed  Google Scholar 

  15. Haussmann IU, Bodi Z, Sanchez-Moran E, Mongan NP, Archer N, Fray RG, et al. m6A potentiates Sxl alternative pre-mRNA splicing for robust Drosophila sex determination. Nature. 2016;540(7632):301–4.

    Article  CAS  PubMed  Google Scholar 

  16. Müller S, Glaß M, Singh AK, Haase J, Bley N, Fuchs T, et al. IGF2BP1 promotes SRF-dependent transcription in cancer in a m6A- and miRNA-dependent manner. Nucleic Acids Res. 2019;47(1):375–90.

    Article  PubMed  Google Scholar 

  17. Zhao BS, Roundtree IA, He C. Post-transcriptional gene regulation by mRNA modifications. Nat Rev Mol Cell Biol. 2017;18(1):31–42.

    Article  CAS  PubMed  Google Scholar 

  18. Xu C, Liu K, Ahmed H, Loppnau P, Schapira M, Min J. Structural basis for the discriminative recognition of N6-Methyladenosine RNA by the human YT521-B homology domain family of proteins. J Biol Chem. 2015;290(41):24902–13.

    Article  CAS  PubMed  Google Scholar 

  19. Arguello AE, DeLiberto AN, Kleiner RE. RNA chemical proteomics reveals the N6-Methyladenosine (m6A)-regulated protein-RNA Interactome. J Am Chem Soc. 2017;139(48):17249–52.

    Article  CAS  PubMed  Google Scholar 

  20. Edupuganti RR, Geiger S, Lindeboom RGH, Shi H, Hsu PJ, Lu Z, et al. N(6)-methyladenosine (m(6)a) recruits and repels proteins to regulate mRNA homeostasis. Nat Struct Mol Biol. 2017;24(10):870–8.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  21. Pendleton KE, Chen B, Liu K, Hunter OV, Xie Y, Tu BP, et al. The U6 snRNA m(6)a methyltransferase METTL16 regulates SAM Synthetase intron retention. Cell. 2017;169(5):824–835.e14.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  22. Wei W, Ji X, Guo X, Ji S. Regulatory role of N6-Methyladenosine (m6A) methylation in RNA processing and human diseases. J Cell Biochem. 2017:2534–43.

    Article  CAS  PubMed  Google Scholar 

  23. Barbieri I, Tzelepis K, Pandolfini L, Shi J, Millán-Zambrano G, Robson SC, et al. Promoter-bound METTL3 maintains myeloid leukaemia by m6A-dependent translation control. Nature. 2017;552(7683):126–31.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  24. Su R, Dong L, Li C, Nachtergaele S, Wunderlich M, Qing Y, et al. R-2HG exhibits anti-tumor activity by targeting FTO/m6A/MYC/CEBPA signaling. Cell. 2018;172(1–2):90–105.e23.

    Article  CAS  PubMed  Google Scholar 

  25. Bartosovic M, Molares HC, Gregorova P, Hrossova D, Kudla G, Vanacova S. N6-methyladenosine demethylase FTO targets pre-mRNAs and regulates alternative splicing and 3′-end processing. Nucleic Acids Res. 2017;45(19):11356–70.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  26. Ma JZ, Yang F, Zhou CC, Liu F, Yuan J-H, Wang F, et al. METTL14 suppresses the metastatic potential of hepatocellular carcinoma by modulating N(6) -methyladenosine-dependent primary MicroRNA processing. Hepatol Baltim Md. 2017;65(2):529–43.

    Article  CAS  Google Scholar 

  27. Kasowitz SD, Ma J, Anderson SJ, Leu NA, Xu Y, Gregory BD, et al. Nuclear m6A reader YTHDC1 regulates alternative polyadenylation and splicing during mouse oocyte development. PLoS Genet. 2018;14(5):e1007412.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  28. Zhao X, Yang Y, Sun BF, Shi Y, Yang X, Xiao W, et al. FTO-dependent demethylation of N6-methyladenosine regulates mRNA splicing and is required for adipogenesis. Cell Res. 2014;24(12):1403–19.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  29. Dominissini D, Moshitch-Moshkovitz S, Schwartz S, Salmon-Divon M, Ungar L, Osenberg S, et al. Topology of the human and mouse m6A RNA methylomes revealed by m6A-seq. Nature. 2012;485(7397):201–6.

    Article  CAS  PubMed  Google Scholar 

  30. Ben-Haim MS, Moshitch-Moshkovitz S, Rechavi G. FTO: linking m6A demethylation to adipogenesis. Cell Res. 2015;25(1):3–4.

    Article  CAS  PubMed  Google Scholar 

  31. Taketo K, Konno M, Asai A, Koseki J, Toratani M, Satoh T, et al. The epitranscriptome m6A writer METTL3 promotes chemo- and radioresistance in pancreatic cancer cells. Int J Oncol. 2018;52(2):621–9.

    PubMed  Google Scholar 

  32. Horiuchi K, Kawamura T, Iwanari H, Ohashi R, Naito M, Kodama T, et al. Identification of Wilms’ tumor 1-associating protein complex and its role in alternative splicing and the cell cycle. J Biol Chem. 2013;288(46):33292–302.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  33. Rosa-Mercado NA, Withers JB, Steitz JA. Settling the m(6)a debate: methylation of mature mRNA is not dynamic but accelerates turnover. Genes Dev. 2017;31(10):957–8.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  34. Ke S, Pandya-Jones A, Saito Y, Fak JJ, Vågbø CB, Geula S, et al. m6A mRNA modifications are deposited in nascent pre-mRNA and are not required for splicing but do specify cytoplasmic turnover. Genes Dev. 2017;31(10):990–1006.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  35. Geula S, Moshitch-Moshkovitz S, Dominissini D, Mansour AA, Kol N, Salmon-Divon M, et al. m6A mRNA methylation facilitates resolution of naïve pluripotency toward differentiation. Science. 2015;347(6225):1002–6.

    Article  CAS  PubMed  Google Scholar 

  36. Du H, Zhao Y, He J, Zhang Y, Xi H, Liu M, et al. YTHDF2 destabilizes m(6)A-containing RNA through direct recruitment of the CCR4-NOT deadenylase complex. Nat Commun. 2016;7:12626.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  37. Chen M, Wei L, Law CT, Tsang FH-C, Shen J, Cheng CL-H, et al. RNA N6-methyladenosine methyltransferase-like 3 promotes liver cancer progression through YTHDF2-dependent posttranscriptional silencing of SOCS2. Hepatol Baltim Md. 2017;67(6):2254–70.

    Article  CAS  Google Scholar 

  38. Shi H, Wang X, Lu Z, Zhao BS, Ma H, Hsu PJ, et al. YTHDF3 facilitates translation and decay of N(6)-methyladenosine-modified RNA. Cell Res. 2017;27(3):315–28.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  39. Wang X, He C. Dynamic RNA modifications in posttranscriptional regulation. Mol Cell. 2014;56(1):5–12.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  40. Wang X, Lu Z, Gomez A, Hon GC, Yue Y, Han D, et al. N6-methyladenosine-dependent regulation of messenger RNA stability. Nature. 2014;505(7481):117–20.

    Article  PubMed  CAS  Google Scholar 

  41. Li HB, Tong J, Zhu S, Batista PJ, Duffy EE, Zhao J, et al. M(6)a mRNA methylation controls T cell homeostasis by targeting the IL-7/STAT5/SOCS pathways. Nature. 2017;548(7667):338–42.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  42. Kennedy EM, Bogerd HP, Kornepati AVR, Kang D, Ghoshal D, Marshall JB, et al. Posttranscriptional m(6)a editing of HIV-1 mRNAs enhances viral gene expression. Cell Host Microbe. 2016;19(5):675–85.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  43. Coots RA, Liu XM, Mao Y, Dong L, Zhou J, Wan J, et al. m6A facilitates eIF4F-independent mRNA translation. Mol Cell. 2017;68(3):504–514.e7.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  44. Cheng M, Sheng L, Gao Q, Xiong Q, Zhang H, Wu M, et al. The m6A methyltransferase METTL3 promotes bladder cancer progression via AFF4/NF-κB/MYC signaling network. Oncogene. 2019;38(19):3667–80.

    Article  CAS  PubMed  Google Scholar 

  45. Zhang P, He Q, Lei Y, Li Y, Wen X, Hong M, et al. m6A-mediated ZNF750 repression facilitates nasopharyngeal carcinoma progression. Cell Death Dis. 2018;9(12):1169.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  46. Lin S, Choe J, Du P, Triboulet R, Gregory RI. The m6A methyltransferase METTL3 promotes translation in human Cancer cells. Mol Cell. 2016;62(3):335–45.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  47. Xiang Y, Laurent B, Hsu CH, Nachtergaele S, Lu Z, Sheng W, et al. RNA m(6)a methylation regulates the ultraviolet-induced DNA damage response. Nature. 2017;543(7646):573–6.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  48. Wang X, Zhao BS, Roundtree IA, Lu Z, Han D, Ma H, et al. N6-methyladenosine modulates messenger RNA translation efficiency. Cell. 2015;161(6):1388–99.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  49. Yang Y, Fan X, Mao M, Song X, Wu P, Zhang Y, et al. Extensive translation of circular RNAs driven by N(6)-methyladenosine. Cell Res. 2017;27(5):626–41.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  50. Church C, Moir L, McMurray F, Girard C, Banks GT, Teboul L, et al. Overexpression of Fto leads to increased food intake and results in obesity. Nat Genet. 2010;42(12):1086–92.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  51. Xiao S, Zeng X, Fan Y, Su Y, Ma Q, Zhu J, et al. Gene polymorphism association with type 2 diabetes and related Gene-gene and Gene-environment interactions in a Uyghur population. Med Sci Monit Int Med J Exp Clin Res. 2016;22:474–87.

    CAS  Google Scholar 

  52. Boissel S, Reish O, Proulx K, Kawagoe-Takaki H, Sedgwick B, Yeo GSH, et al. Loss-of-function mutation in the dioxygenase-encoding FTO gene causes severe growth retardation and multiple malformations. Am J Hum Genet. 2009;85(1):106–11.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  53. Maity A, Das B. N6-methyladenosine modification in mRNA: machinery, function and implications for health and diseases. FEBS J. 2016;283(9):1607–30.

    Article  CAS  PubMed  Google Scholar 

  54. Gokhale NS, McIntyre ABR, McFadden MJ, Roder AE, Kennedy EM, Gandara JA, et al. N6-Methyladenosine in Flaviviridae viral RNA genomes regulates infection. Cell Host Microbe. 2016;20(5):654–65.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  55. Lichinchi G, Zhao BS, Wu Y, Lu Z, Qin Y, He C, et al. Dynamics of human and viral RNA methylation during Zika virus infection. Cell Host Microbe. 2016;20(5):666–73.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  56. Gallagher EJ, LeRoith D. Obesity and diabetes: the increased risk of Cancer and Cancer-related mortality. Physiol Rev. 2015;95(3):727–48.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  57. Ivanova I, Much C, Di Giacomo M, Azzi C, Morgan M, Moreira PN, et al. The RNA m(6)a reader YTHDF2 is essential for the post-transcriptional regulation of the maternal transcriptome and oocyte competence. Mol Cell. 2017;67(6).

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  58. Hsu PJ, Zhu Y, Ma H, Guo Y, Shi X, Liu Y, et al. Ythdc2 is an N(6)-methyladenosine binding protein that regulates mammalian spermatogenesis. Cell Res. 2017;27(9):1115–27.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  59. Boles NC, Temple S. Epimetronomics: m6A Marks the tempo of Corticogenesis. Neuron. 2017;96(4):718–20.

    Article  CAS  PubMed  Google Scholar 

  60. Wang Y, Li Y, Yue M, Wang J, Kumar S, Wechsler-Reya RJ, et al. N6-methyladenosine RNA modification regulates embryonic neural stem cell self-renewal through histone modifications. Nat Neurosci. 2018;21(2):195–206.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  61. Yoon K-J, Ringeling FR, Vissers C, Jacob F, Pokrass M, Jimenez-Cyrus D, et al. Temporal control of mammalian cortical neurogenesis by m6A methylation. Cell. 2017;171(4):877–889.e17.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  62. Chiba T, Marusawa H, Ushijima T. Inflammation-associated cancer development in digestive organs: mechanisms and roles for genetic and epigenetic modulation. Gastroenterology. 2012;143(3):550–63.

    Article  CAS  PubMed  Google Scholar 

  63. Benitez CM, Qu K, Sugiyama T, Pauerstein PT, Liu Y, Tsai J, et al. An integrated cell purification and genomics strategy reveals multiple regulators of pancreas development. PLoS Genet. 2014;10(10):e1004645.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  64. Peng S, Xiao W, Ju D, Sun B, Hou N, Liu Q, et al. Identification of entacapone as a chemical inhibitor of FTO mediating metabolic regulation through FOXO1. Sci Transl Med. 2019;(488):11.

    Article  PubMed  Google Scholar 

  65. Song W, Li Q, Wang L, Wang L. Modulation of FoxO1 expression by miR-21 to promote growth of pancreatic ductal adenocarcinoma. Cell Physiol Biochem Int J Exp Cell Physiol Biochem Pharmacol. 2015;35(1):184–90.

    Article  CAS  Google Scholar 

  66. Liu J, Eckert MA, Harada BT, Liu S-M, Lu Z, Yu K, et al. m6A mRNA methylation regulates AKT activity to promote the proliferation and tumorigenicity of endometrial cancer. Nat Cell Biol. 2018;20(9):1074–83.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  67. Li Z, Weng H, Su R, Weng X, Zuo Z, Li C, et al. FTO plays an oncogenic role in acute myeloid leukemia as a N6-Methyladenosine RNA demethylase. Cancer Cell. 2017;31(1):127–41.

    Article  PubMed  CAS  Google Scholar 

  68. Weng H, Huang H, Wu H, Qin X, Zhao BS, Dong L, et al. METTL14 inhibits hematopoietic stem/progenitor differentiation and promotes Leukemogenesis via mRNA m6A modification. Cell Stem Cell. 2017;22(2):191–205 e9.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  69. Bansal H, Yihua Q, Iyer S, Ganapathy S, Proia D, Penalva L, et al. WTAP is a novel oncogenic protein in acute myeloid leukemia. Leukemia. 2014;28(5):1171–4.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  70. Vu LP, Pickering BF, Cheng Y, Zaccara S, Nguyen D, Minuesa G, et al. The N(6)-methyladenosine (m(6)a)-forming enzyme METTL3 controls myeloid differentiation of normal hematopoietic and leukemia cells. Nat Med. 2017;23(11):1369–76.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  71. Wang H, Zuo H, Liu J, Wen F, Gao Y, Zhu X, et al. Loss of YTHDF2-mediated m6A-dependent mRNA clearance facilitates hematopoietic stem cell regeneration. Cell Res. 2018;28(10):1035–8.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  72. Li Z, Qian P, Shao W, Shi H, He XC, Gogol M, et al. Suppression of m6A reader Ythdf2 promotes hematopoietic stem cell expansion. Cell Res. 2018;28(9):904–17.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  73. Zhang S, Zhao BS, Zhou A, Lin K, Zheng S, Lu Z, et al. M(6)a demethylase ALKBH5 maintains Tumorigenicity of glioblastoma stem-like cells by sustaining FOXM1 expression and cell proliferation program. Cancer Cell. 2017;31(4):591–606.e6.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  74. Cui Q, Shi H, Ye P, Li L, Qu Q, Sun G, et al. M(6)a RNA methylation regulates the self-renewal and tumorigenesis of glioblastoma stem cells. Cell Rep. 2017;18(11):2622–34.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  75. Liu J, Ren D, Du Z, Wang H, Zhang H, Jin Y. m6A demethylase FTO facilitates tumor progression in lung squamous cell carcinoma by regulating MZF1 expression. Biochem Biophys Res Commun. 2018;502(4):456–64.

    Article  CAS  PubMed  Google Scholar 

  76. Du Y, Hou G, Zhang H, Dou J, He J, Guo Y, et al. SUMOylation of the m6A-RNA methyltransferase METTL3 modulates its function. Nucleic Acids Res. 2018;46(10):5195–208.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  77. Yang Z, Li J, Feng G, Gao S, Wang Y, Zhang S, et al. MicroRNA-145 modulates N(6)-Methyladenosine levels by targeting the 3′-untranslated mRNA region of the N(6)-Methyladenosine binding YTH domain family 2 protein. J Biol Chem. 2017;292(9):3614–23.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  78. Cai X, Wang X, Cao C, Gao Y, Zhang S, Yang Z, et al. HBXIP-elevated methyltransferase METTL3 promotes the progression of breast cancer via inhibiting tumor suppressor let-7g. Cancer Lett. 2018;415:11–9.

    Article  CAS  PubMed  Google Scholar 

  79. Zhang C, Samanta D, Lu H, Bullen JW, Zhang H, Chen I, et al. Hypoxia induces the breast cancer stem cell phenotype by HIF-dependent and ALKBH5-mediated m6A-demethylation of NANOG mRNA. Proc Natl Acad Sci. 2016;113(14):E2047–56.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  80. Yang B, Thrift AP, Figueiredo JC, Jenkins MA, Schumacher FR, Conti DV, et al. Common variants in the obesity-associated genes FTO and MC4R are not associated with risk of colorectal cancer. Cancer Epidemiol. 2016;44:1–4.

    Article  PubMed  PubMed Central  Google Scholar 

  81. Zhang J, Tsoi H, Li X, Wang H, Gao J, Wang K, et al. Carbonic anhydrase IV inhibits colon cancer development by inhibiting the Wnt signalling pathway through targeting the WTAP–WT1–TBL1 axis. Gut. 2016;65(9):1482–93.

    Article  CAS  PubMed  Google Scholar 

  82. Huang Y, Su R, Sheng Y, Dong L, Dong Z, Xu H, et al. Small-molecule targeting of oncogenic FTO demethylase in acute myeloid leukemia. Cancer Cell. 2019;35(4):677–91 e10.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  83. Huang Y, Yan J, Li Q, Li J, Gong S, Zhou H, et al. Meclofenamic acid selectively inhibits FTO demethylation of m6A over ALKBH5. Nucleic Acids Res. 2015;43(1):373–84.

    Article  CAS  PubMed  Google Scholar 

  84. Wang S, Sun C, Li J, Zhang E, Ma Z, Xu W, et al. Roles of RNA methylation by means of N(6)-methyladenosine (m(6)a) in human cancers. Cancer Lett. 2017;408:112–20.

    Article  CAS  PubMed  Google Scholar 

  85. Fedeles BI, Singh V, Delaney JC, Li D, Essigmann JM. The AlkB family of Fe(II)/α-ketoglutarate-dependent dioxygenases: repairing nucleic acid alkylation damage and beyond. J Biol Chem. 2015;290(34):20734–42.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  86. Lin AP, Abbas S, Kim S-W, Ortega M, Bouamar H, Escobedo Y, et al. D2HGDH regulates alpha-ketoglutarate levels and dioxygenase function by modulating IDH2. Nat Commun. 2015;6:7768.

    Article  CAS  PubMed  Google Scholar 

  87. Kloor D, Osswald H. S-Adenosylhomocysteine hydrolase as a target for intracellular adenosine action. Trends Pharmacol Sci. 2004;25(6):294–7.

    Article  CAS  PubMed  Google Scholar 

  88. Bader JP, Brown NR, Chiang PK, Cantoni GL. 3-Deazaadenosine, an inhibitor of adenosylhomocysteine hydrolase, inhibits reproduction of Rous sarcoma virus and transformation of chick embryo cells. Virology. 1978;89(2):494–505.

    Article  CAS  PubMed  Google Scholar 

  89. Mayers DL, Mikovits JA, Joshi B, Hewlett IK, Estrada JS, Wolfe AD, et al. Anti-human immunodeficiency virus 1 (HIV-1) activities of 3-deazaadenosine analogs: increased potency against 3′-azido-3′-deoxythymidine-resistant HIV-1 strains. Proc Natl Acad Sci U S A. 1995;92(1):215–9.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  90. Gordon RK, Ginalski K, Rudnicki WR, Rychlewski L, Pankaskie MC, Bujnicki JM, et al. Anti-HIV-1 activity of 3-deaza-adenosine analogs inhibition of S-adenosylhomocysteine hydrolase and nucleotide congeners. Eur J Biochem. 2003;270(17):3507–17.

    Article  CAS  PubMed  Google Scholar 

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Funding

Our work was supported by the grants from National Natural Science Foundation of China (No. 81873143; 81573747), and Shanghai Science and Technology Commission Western Medicine Guide project (No. 17411966500).

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  1. Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Yishan Road 600, Shanghai, 200233, China

    Xiao-Yu Chen, Jing Zhang & Jin-Shui Zhu

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  1. Xiao-Yu Chen
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JZ and JSZ designed this study and XYC drafted the manuscript. JZ revised this manuscript. All authors read and approved the final manuscript.

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Chen, XY., Zhang, J. & Zhu, JS. The role of m6A RNA methylation in human cancer. Mol Cancer 18, 103 (2019). https://doi.org/10.1186/s12943-019-1033-z

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Keywords

Molecular Cancer

ISSN: 1476-4598