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!26823493
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Mol+Cancer+Ther
2016 ; 15
(5
): 866-76
Nephropedia Template TP gab.com Text Twit Text FOAVip Twit Text # English Wikipedia
Posaconazole, a Second-Generation Triazole Antifungal Drug, Inhibits the Hedgehog
Signaling Pathway and Progression of Basal Cell Carcinoma
#MMPMID26823493
Chen B
; Trang V
; Lee A
; Williams NS
; Wilson AN
; Epstein EH Jr
; Tang JY
; Kim J
Mol Cancer Ther
2016[May]; 15
(5
): 866-76
PMID26823493
show ga
Deregulation of Hedgehog (Hh) pathway signaling has been associated with the
pathogenesis of various malignancies, including basal cell carcinomas (BCC).
Inhibitors of the Hh pathway currently available or under clinical investigation
all bind and antagonize Smoothened (SMO), inducing a marked but transient
clinical response. Tumor regrowth and therapy failure were attributed to
mutations in the binding site of these small-molecule SMO antagonists. The
antifungal itraconazole was demonstrated to be a potent SMO antagonist with a
distinct mechanism of action from that of current SMO inhibitors. However,
itraconazole represents a suboptimal therapeutic option due to its numerous
drug-drug interactions. Here, we show that posaconazole, a second-generation
triazole antifungal with minimal drug-drug interactions and a favorable
side-effect profile, is also a potent inhibitor of the Hh pathway that functions
at the level of SMO. We demonstrate that posaconazole inhibits the Hh pathway by
a mechanism distinct from that of cyclopamine and other cyclopamine-competitive
SMO antagonists but, similar to itraconazole, has robust activity against
drug-resistant SMO mutants and inhibits the growth of Hh-dependent BCC in vivo
Our results suggest that posaconazole, alone or in combination with other Hh
pathway antagonists, may be readily tested in clinical studies for the treatment
of Hh-dependent cancers. Mol Cancer Ther; 15(5); 866-76. ©2016 AACR.
Please enable JavaScript to view the comments powered by Disqus. |Animals
[MESH] |Antifungal Agents/pharmacology
[MESH] |Antineoplastic Agents/*pharmacology
[MESH] |Carcinoma, Basal Cell/drug therapy/*metabolism/pathology
[MESH] |Cell Line, Tumor
[MESH] |Disease Models, Animal
[MESH] |Gene Knockout Techniques
[MESH] |Hedgehog Proteins/*metabolism
[MESH] |Humans
[MESH] |Mice
[MESH] |Signal Transduction/*drug effects
[MESH] |Skin Neoplasms/drug therapy/*metabolism/pathology
[MESH] |Smoothened Receptor/genetics/metabolism
[MESH] |Triazoles/*pharmacology
[MESH] DeepDyve Pubget Overpricing