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Fig. 4 | Molecular Cancer

Fig. 4

From: Role of Bruton’s tyrosine kinase in B cells and malignancies

Fig. 4

Stages of B cell differentiation and associated malignancies. Model of B cell development indicating different stages of B cell differentiation and important immune checkpoints where BTK plays a key role. Various B-cell malignancies are indicated, which are associated with abnormal BTK signaling at distinct stages of B-cell differentiation and activation. Note that the cellular origin of U-CLL is thought to be CD5+ mature B cells. Somatic hypermutation status of BCR and gene expression profiling indicates post-germinal center (GC) origin of M-CLL. See text for detailed information. CLP, common lymphoid progenitor; CSR, class switch recombination; FDC, follicular dendritic cell; SHM, somatic hypermutation

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