The Cyclophilin A-CD147 complex promotes bone marrow colonization of B-cell malignancies: implications for therapy
Dorfman, David M.
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CitationZhu, D., Z. Wang, J. Zhao, T. Calimeri, J. Meng, T. Hideshima, M. Fulciniti, et al. 2015. “The Cyclophilin A-CD147 complex promotes bone marrow colonization of B-cell malignancies: implications for therapy.” Nature medicine 21 (6): 572-580. doi:10.1038/nm.3867. http://dx.doi.org/10.1038/nm.3867.
AbstractB-cell malignancies frequently colonizes the bone marrow (BM). The mechanisms responsible for this preferential homing are not entirely known. Using multiple myeloma (MM) as a model of a terminally differentiated B-cell malignancy that selectively colonizes the BM, we demonstrated that BM endothelial cells (BMECs), secrete cyclophilin A (eCyPA), which promotes migration, proliferation, and BM colonization of MM cells via binding to its receptor, CD147, on MM cells. The clinical and translational implications of this work are highlighted by the observation of significantly higher eCyPA levels in BM serum than in peripheral blood (PB) in MM persons, and that eCyPA-CD147 blockade supresses BM-homing and tumor growth in a mouse xenograft model of MM. eCyPA also promoted migration of CLL and LPL cells, two other B-cell malignancies that colonize the BM and express CD147. These findings offer a compelling rationale for exploring the eCyPA-CD147 axis as therapeutic target for these malignancies.
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