التفاصيل البيبلوغرافية
| العنوان: |
Epigenetic suppression of PGC1α (PPARGC1A) causes collateral sensitivity to HMGCR-inhibitors within BRAF-treatment resistant melanomas |
| المؤلفون: |
Jiaxin Liang, Deyang Yu, Chi Luo, Christopher Bennett, Mark Jedrychowski, Steve P. Gygi, Hans R. Widlund, Pere Puigserver |
| المصدر: |
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023) |
| بيانات النشر: |
Nature Portfolio, 2023. |
| سنة النشر: |
2023 |
| المجموعة: |
LCC:Science |
| مصطلحات موضوعية: |
Science |
| الوصف: |
Abstract While targeted treatment against BRAF(V600E) improve survival for melanoma patients, many will see their cancer recur. Here we provide data indicating that epigenetic suppression of PGC1α defines an aggressive subset of chronic BRAF-inhibitor treated melanomas. A metabolism-centered pharmacological screen further identifies statins (HMGCR inhibitors) as a collateral vulnerability within PGC1α-suppressed BRAF-inhibitor resistant melanomas. Lower PGC1α levels mechanistically causes reduced RAB6B and RAB27A expression, whereby their combined re-expression reverses statin vulnerability. BRAF-inhibitor resistant cells with reduced PGC1α have increased integrin-FAK signaling and improved extracellular matrix detached survival cues that helps explain their increased metastatic ability. Statin treatment blocks cell growth by lowering RAB6B and RAB27A prenylation that reduces their membrane association and affects integrin localization and downstream signaling required for growth. These results suggest that chronic adaptation to BRAF-targeted treatments drive novel collateral metabolic vulnerabilities, and that HMGCR inhibitors may offer a strategy to treat melanomas recurring with suppressed PGC1α expression. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2041-1723 |
| Relation: |
https://doaj.org/toc/2041-1723 |
| DOI: |
10.1038/s41467-023-38968-7 |
| URL الوصول: |
https://doaj.org/article/c2657c434fc34c79b1541bfc5979b66b |
| رقم الانضمام: |
edsdoj.2657c434fc34c79b1541bfc5979b66b |
| قاعدة البيانات: |
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