9q33
Cereblon Ternary Complex with Blimp1 and compound 5
Structural highlights
FunctionPRDM1_HUMAN Transcriptional repressor that binds specifically to the PRDI element in the promoter of the beta-interferon gene. Drives the maturation of B-lymphocytes into Ig secreting cells. Publication Abstract from PubMedB-lymphocyte-induced maturation protein 1 (BLIMP-1/PRDM1) is a master transcriptional repressor essential for terminal differentiation of activated B-cells into bone-marrow resident plasma cells. Multiple myeloma (MM) is a plasma cell malignancy wherein the BLIMP-1 regulon remains critical to support basal cell functions, such as an elevated metabolic state and immunoglobulin production that underlie disease manifestation and tumor cell proliferation. It is predicted that perturbation of BLIMP-1 will significantly impact tumor cell homeostasis and ultimately reduce MM cell survival. Herein, we describe the discovery and optimization of the first orally bioavailable BLIMP-1 heterobifunctional ligand-directed degrader (LDD) and demonstration of the expected antitumor response and immunomodulatory biology following BLIMP-1 degradation using preclinical in vivo MM models. Discovery and Characterization of Novel BLIMP-1 Heterobifunctional Ligand-Directed Degraders.,Simmons BJ, Groocock L, Moreno J, Peters DS, Hughes ME, Veeravalli V, Crawford JM, Chalkley M, Griffith M, Plooster M, Hu B, Gamez J, Leisten J, Barnes MJ, Chinn J, Deb G, Modi H, Katepalli M, Weiss D, Won W, Sun Z, Yu S, Reid C, Donnell AF, Li L, Watson ER, Perrin-Ninkovic S, Shi L, Narla RK, Zapf CW, Bence N, Lopez-Girona A, Riggs JR J Med Chem. 2025 Dec 11;68(23):25385-25402. doi: 10.1021/acs.jmedchem.5c02363. , Epub 2025 Nov 24. PMID:41284831[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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