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Design, synthesis, and biological evaluation of bone-targeted proteasome inhibitors for multiple myeloma.


ABSTRACT: Multiple myeloma (MM) is an incurable neoplasm characterized by devastating and progressive bone destruction. Standard chemotherapeutic agents have not been effective at significantly prolonging the survival of MM patients and these agents are typically associated with often severe, dose-limiting side effects. There is great need for methods to target the delivery of novel, effective cytotoxic agents specifically to bone, where myeloma cells reside. We have synthesized and evaluated the effects of the bone-targeted proteasome inhibitors PS-341-BP-1, PS-341-BP-2 and MG-262-BP on cell proliferation using the mouse 5TGM1 and human RPMI 8226 cell lines in vitro. The compounds exhibit strong cytotoxicity on MM cell lines and reduce the number of viable cells in a dose dependent manner.

SUBMITTER: Agyin JK 

PROVIDER: S-EPMC3836429 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature

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Design, synthesis, and biological evaluation of bone-targeted proteasome inhibitors for multiple myeloma.

Agyin Joseph K JK   Santhamma Bindu B   Roy Sudipa S SS  

Bioorganic & medicinal chemistry letters 20130921 23


Multiple myeloma (MM) is an incurable neoplasm characterized by devastating and progressive bone destruction. Standard chemotherapeutic agents have not been effective at significantly prolonging the survival of MM patients and these agents are typically associated with often severe, dose-limiting side effects. There is great need for methods to target the delivery of novel, effective cytotoxic agents specifically to bone, where myeloma cells reside. We have synthesized and evaluated the effects  ...[more]

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