Abstract:
:Hsp70 is a stress-inducible molecular chaperone that is required for cancer development at several steps. Targeting the active site of Hsp70 has proven relatively challenging, driving interest in alternative approaches. Hsp70 collaborates with the Bcl2-associated athanogene 3 (Bag3) to promote cell survival through multiple pathways, including FoxM1. Therefore, inhibitors of the Hsp70-Bag3 protein-protein interaction (PPI) may provide a noncanonical way to target this chaperone. We report that JG-98, an allosteric inhibitor of this PPI, indeed has antiproliferative activity (EC50 values between 0.3 and 4 μmol/L) across cancer cell lines from multiple origins. JG-98 destabilized FoxM1 and relieved suppression of downstream effectors, including p21 and p27. On the basis of these findings, JG-98 was evaluated in mice for pharmacokinetics, tolerability, and activity in two xenograft models. The results suggested that the Hsp70-Bag3 interaction may be a promising, new target for anticancer therapy.
journal_name
Mol Cancer Therjournal_title
Molecular cancer therapeuticsauthors
Li X,Colvin T,Rauch JN,Acosta-Alvear D,Kampmann M,Dunyak B,Hann B,Aftab BT,Murnane M,Cho M,Walter P,Weissman JS,Sherman MY,Gestwicki JEdoi
10.1158/1535-7163.MCT-14-0650subject
Has Abstractpub_date
2015-03-01 00:00:00pages
642-8issue
3eissn
1535-7163issn
1538-8514pii
1535-7163.MCT-14-0650journal_volume
14pub_type
杂志文章abstract::Multiple roles within mitosis have been assigned to Polo-like kinase 1 (Plk1), making it an attractive candidate for mitotic targeting of cancer cells. We have employed chimeric antisense oligonucleotides to investigate the molecular alterations after targeted interference with Plk1 in RKO human colon adenocarcinoma a...
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journal_title:Molecular cancer therapeutics
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pub_type: 杂志文章,评审
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
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pub_type: 临床试验,杂志文章
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更新日期:2008-09-01 00:00:00
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journal_title:Molecular cancer therapeutics
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更新日期:2003-05-01 00:00:00
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doi:10.1158/1535-7163.MCT-12-1042
更新日期:2013-07-01 00:00:00
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journal_title:Molecular cancer therapeutics
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
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更新日期:2005-11-01 00:00:00
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journal_title:Molecular cancer therapeutics
pub_type: 杂志文章
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更新日期:2003-08-01 00:00:00
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