Tris DBA palladium is an orally available inhibitor of GNAQ mutant uveal melanoma in vivo.

Tris DBA palladium is an orally available inhibitor of GNAQ mutant uveal melanoma in vivo. Oncotarget. 2019 Jul 08;10(43):4424-4436 Authors: Musi E, Schwartz GK, Yoo JH, Odelberg SJ, Li DY, Bonner MY, Selvakumar P, Rao S, Gilbert LC, Elsey J, Arbiser JL Abstract Uveal melanoma is a rare but often lethal malignancy and is the leading cause of death due to an ophthalmic condition. Uveal melanoma is often diagnosed at a late stage and has a strong propensity to hepatic metastasis. Recently, the most common driver mutations in uveal melanoma have been identified, predominantly in the G-proteins GNAQ. This pattern differs from that of cutaneous melanoma in which Braf and Nras predominate. There are no current clinically used agents that target GNAQ mutations, unlike the use of Braf inhibitors in cutaneous melanoma. We tested the novel agent Tris DBA palladium and found that it was markedly more effective against GNAQ mutant melanomas than wild type uveal melanomas. Given that ARF6 has recently been discovered as a node in GNAQ mutations, we evaluated the efficacy of Tris DBA palladium on ARF6 signaling and found that it was effective in inhibiting ARF6 activation. Finally, Tris DBA palladium was orally effective against GNAQ mutant melanoma in vivo. Tris DBA Palladium deserves further evaluation as a systemic agent for uveal melanoma. PMID: 31320995 [PubMed]
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research

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Source: Cancers - Category: Cancer & Oncology Authors: Tags: Communication Source Type: research
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Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
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Source: The British Journal of Ophthalmology - Category: Opthalmology Authors: Tags: Br J Ophthalmol Source Type: research
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Source: Journal of Investigative Dermatology - Category: Dermatology Authors: Tags: Original Article Source Type: research
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