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Compounds Triggering ER Stress Exert Anti-Melanoma Effects and Overcome BRAF Inhibitor Resistance. | LitMetric

Compounds Triggering ER Stress Exert Anti-Melanoma Effects and Overcome BRAF Inhibitor Resistance.

Cancer Cell

INSERM, U1065, Equipe Biologie et Pathologie des cellules mélanocytaire: de la pigmentation cutanée au mélanome, Centre Méditerranéen de Médecine Moléculaire (C3M), Bâtiment ARCHIMED, 151 route de Saint Antoine de Ginestière, 06204 Nice cedex 3, France; UFR de Médecine, Université de Nice Sophia Antipolis, 06000 Nice, France; Service de Dermatologie, Hôpital Archet II, CHU, 06204 Nice, France. Electronic address:

Published: June 2016

AI Article Synopsis

Article Abstract

We have discovered and developed a series of molecules (thiazole benzenesulfonamides). HA15, the lead compound of this series, displayed anti-cancerous activity on all melanoma cells tested, including cells isolated from patients and cells that developed resistance to BRAF inhibitors. Our molecule displayed activity against other liquid and solid tumors. HA15 also exhibited strong efficacy in xenograft mouse models with melanoma cells either sensitive or resistant to BRAF inhibitors. Transcriptomic, proteomic, and biochemical studies identified the chaperone BiP/GRP78/HSPA5 as the specific target of HA15 and demonstrated that the interaction increases ER stress, leading to melanoma cell death by concomitant induction of autophagic and apoptotic mechanisms.

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Source
http://dx.doi.org/10.1016/j.ccell.2016.04.013DOI Listing

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