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Antimyeloma effects of the heat shock protein 70 molecular chaperone inhibitor MAL3-101
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نویسنده
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braunstein m.j. ,scott s.s. ,scott c.m. ,behrman s. ,walter p. ,wipf p. ,coplan j.d. ,chrico w. ,joseph d. ,brodsky j.l. ,batuman o.
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منبع
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journal of oncology - 2011 - دوره : 2011 - شماره : 0
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چکیده
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Multiple myeloma (mm) is the second most common hematologic malignancy and remains incurable,primarily due to the treatment-refractory/resistant nature of the disease. a rational approach to this compelling challenge is to develop new drugs that act synergistically with existing effective agents. this approach will reduce drug concentrations,avoid treatment resistance,and also improve treatment effectiveness by targeting new and nonredundant pathways in mm. toward this goal,we examined the antimyeloma effects of mal3-101,a member of a new class of non-atp-site inhibitors of the heat shock protein (hsp) 70 molecular chaperone. we discovered that mal3-101 exhibited antimyeloma effects on mm cell lines in vitro and in vivo in a xenograft plasmacytoma model,as well as on primary tumor cells and bone marrow endothelial cells from myeloma patients. in combination with a proteasome inhibitor,mal3-101 significantly potentiated the in vitro and in vivo antimyeloma effects. these data support a preclinical rationale for small molecule inhibition of hsp70 function,either alone or in combination with other agents,as an effective therapeutic strategy for mm. copyright © 2011 marc j. braunstein et al.
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آدرس
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division of hematology/oncology,department of medicine,suny downstate medical center,brooklyn, United States, division of hematology/oncology,department of medicine,suny downstate medical center,brooklyn, United States, department of biological sciences,university of pittsburgh,pittsburgh,pa 15260,united states,department of biology,clarion university,clarion, United States, department of biochemistry and biophysics,howard hughes medical institute,university of california,san francisco, United States, department of biochemistry and biophysics,howard hughes medical institute,university of california,san francisco, United States, department of chemistry,center for chemical methodologies and library development,university of pittsburgh,pittsburgh, United States, division of hematology/oncology,department of medicine,suny downstate medical center,brooklyn, United States, division of hematology/oncology,department of medicine,suny downstate medical center,brooklyn, United States, division of hematology/oncology,department of medicine,suny downstate medical center,brooklyn, United States, department of biological sciences,university of pittsburgh,pittsburgh, United States, division of hematology/oncology,department of medicine,suny downstate medical center,brooklyn, United States
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Authors
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