2017
DOI: 10.1111/jphp.12824
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Therapeutic potency of heat-shock protein-90 pharmacological inhibitors in the treatment of gastrointestinal cancer, current status and perspectives

Abstract: Objectives Heat-shock protein-90 (HSP90) chaperone machinery is critical to the folding, stability and activity of several client proteins including many responsible for tumour initiation, progression and metastasis. Overexpression of HSP90 is correlated with poor prognosis of GI cancer. Key findings Pharmacological inhibitors of HSP90 suppress tumorigenic effects of HSP90 by suppressing angiogenesis, survival, metastasis and drug resistance in GI cancer. This review summarizes the role of HSP90 inhibitors in … Show more

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Cited by 15 publications
(13 citation statements)
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“…In pancreatic tumor models, the HSP90 inhibitors, NVP-AUY922 and ganetespib, were shown to suppress angiogenesis and tumor growth [161,162], whereas geldanamycin exhibited anticancer and pro-apoptotic activity in gastric cancer and cholangiocarcinoma cells, as s single agent or in combination with NVP-AUY922. Consistently, HSP90 inhibition by LD053 induced the inhibition of the pro-survival signaling pathway (i.e., c-RAF/MEK/ERK or PI3K/AKT) in gastric cancer cells [163]. However, in spite of this strong rationale, until now, HSP90 inhibitors failed to keep their promise in a clinical setting, and demonstrated several limitations either in terms of efficacy due to the incomplete inhibition of HSP90 [164], or in terms of toxicity.…”
Section: Conclusion: the Metabolism/epigenetic Bidirectional Crosmentioning
confidence: 87%
“…In pancreatic tumor models, the HSP90 inhibitors, NVP-AUY922 and ganetespib, were shown to suppress angiogenesis and tumor growth [161,162], whereas geldanamycin exhibited anticancer and pro-apoptotic activity in gastric cancer and cholangiocarcinoma cells, as s single agent or in combination with NVP-AUY922. Consistently, HSP90 inhibition by LD053 induced the inhibition of the pro-survival signaling pathway (i.e., c-RAF/MEK/ERK or PI3K/AKT) in gastric cancer cells [163]. However, in spite of this strong rationale, until now, HSP90 inhibitors failed to keep their promise in a clinical setting, and demonstrated several limitations either in terms of efficacy due to the incomplete inhibition of HSP90 [164], or in terms of toxicity.…”
Section: Conclusion: the Metabolism/epigenetic Bidirectional Crosmentioning
confidence: 87%
“…[16] In this case, the Hsp90 level was elevated, consistent with the role of Hsp90 playing an essential role in cancer and being also correlated with poor prognosis in cancer. [17][18][19] To some extent, it seems that AAM possesses potentially malignant or a tendency of regrowth. At gene expression level, AAM has a positive expression of vimentin, SMA, MSA, desmin, CD34, F8, ER, PR, [20] and negative expression for S-100, CK, and CD68.…”
Section: Discussionmentioning
confidence: 99%
“…Altered cellular energy metabolism, in particular aerobic glycolysis (the Warburg effect), is a hallmark of cancer but also of severe angioproliferative PAH (5,16,18,43,134,196). Glycolysis is controlled, among others, by p53, the oncogene cMyc and HIF (Fig.…”
Section: Phenotype Switch and Endothelial Cell Mesenchymal Transitionmentioning
confidence: 99%