Multiple myeloma cell

Multiple myeloma cells" refers to the malignant, clonal plasma cells that proliferate in the bone marrow and are responsible for the disease multiple myeloma. These cells originate from terminally differentiated B lymphocytes and are characterized by their ability to secrete monoclonal immunoglobulins or light chains. They display significant heterogeneity in gene expression, metabolic activity, and differentiation state[2][4]. Multiple myeloma is a hematological cancer marked by unregulated growth of these abnormal plasma cells within the bone marrow microenvironment[6][8]. **Important clarification:** "Multiple myeloma cells" is not a single molecular target such as a receptor, enzyme, or transporter; rather it describes an entire population of malignant cells. As such: - It is **not considered a canonical therapeutic target** but rather the cellular entity being targeted. - Drugs used in multiple myeloma therapy do not interact with "multiple myeloma cells" as a molecular target; instead they act on specific molecules expressed on these cells—such as BCMA, CD38, or GPRC5D—or disrupt key signaling pathways within them[1][5]. - For example: - CAR T-cell therapies like idecabtagene vicleucel and ciltacabtagene autoleucel specifically target BCMA on multiple myeloma cells. - Monoclonal antibodies like daratumumab target CD38. - Bispecific antibodies may engage both immune effector molecules and targets like BCMA or GPRC5D[1]. - Kinase inhibitors have also been explored against kinases overexpressed in subsets of multiple myeloma patients[3]. Because "multiple myeloma cell" is not itself a molecule but rather an entire class of cancerous plasma cells with diverse molecular features—and because effective therapies act via more specific targets—the entry should be flagged as incorrect if used where only true molecular targets are appropriate. If you need structured information about actual therapeutic targets relevant to multiple myeloma treatment—such as "B-cell maturation antigen," "CD38," or others—please specify one of those molecules.

Other names

Myeloma cellMalignant plasma cellMM cell