PMID- 37291333 OWN - NLM STAT- MEDLINE DCOM- 20230621 LR - 20231119 IS - 2399-3642 (Electronic) IS - 2399-3642 (Linking) VI - 6 IP - 1 DP - 2023 Jun 8 TI - Carnitine palmitoyltransferase 1A promotes mitochondrial fission by enhancing MFF succinylation in ovarian cancer. PG - 618 LID - 10.1038/s42003-023-04993-x [doi] LID - 618 AB - Mitochondria are dynamic organelles that are important for cell growth and proliferation. Dysregulated mitochondrial dynamics are highly associated with the initiation and progression of various cancers, including ovarian cancer. However, the regulatory mechanism underlying mitochondrial dynamics is still not fully understood. Previously, our study showed that carnitine palmitoyltransferase 1A (CPT1A) is highly expressed in ovarian cancer cells and promotes the development of ovarian cancer. Here, we find that CPT1A regulates mitochondrial dynamics and promotes mitochondrial fission in ovarian cancer cells. Our study futher shows that CPT1A regulates mitochondrial fission and function through mitochondrial fission factor (MFF) to promote the growth and proliferation of ovarian cancer cells. Mechanistically, we show that CPT1A promotes succinylation of MFF at lysine 302 (K302), which protects against Parkin-mediated ubiquitin-proteasomal degradation of MFF. Finally, the study shows that MFF is highly expressed in ovarian cancer cells and that high MFF expression is associated with poor prognosis in patients with ovarian cancer. MFF inhibition significantly inhibits the progression of ovarian cancer in vivo. Overall, CPT1A regulates mitochondrial dynamics through MFF succinylation to promote the development of ovarian cancer. Moreover, our findings suggest that MFF is a potential therapeutic target for ovarian cancer. CI - (c) 2023. The Author(s). FAU - Zhu, Yaqin AU - Zhu Y AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. FAU - Wang, Yue AU - Wang Y AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. FAU - Li, Ying AU - Li Y AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. FAU - Li, Zhongqi AU - Li Z AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. FAU - Kong, Wenhui AU - Kong W AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. FAU - Zhao, Xiaoxuan AU - Zhao X AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. FAU - Chen, Shuting AU - Chen S AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. FAU - Yan, Liting AU - Yan L AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. FAU - Wang, Lenan AU - Wang L AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. FAU - Tong, Yunli AU - Tong Y AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. FAU - Shao, Huanjie AU - Shao H AUID- ORCID: 0000-0002-9377-5117 AD - National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, 710119, Xi'an, Shaanxi, China. hshao@snnu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230608 PL - England TA - Commun Biol JT - Communications biology JID - 101719179 RN - EC 2.3.1.21 (Carnitine O-Palmitoyltransferase) RN - 0 (Mitochondrial Proteins) RN - EC 2.3.1.21 (CPT1A protein, human) SB - IM MH - Female MH - Humans MH - Carnitine O-Palmitoyltransferase/genetics/metabolism MH - Mitochondria/metabolism MH - *Mitochondrial Dynamics/physiology MH - Mitochondrial Proteins/metabolism MH - *Ovarian Neoplasms/genetics/metabolism PMC - PMC10250469 COIS- The authors declare no competing interests. EDAT- 2023/06/09 01:09 MHDA- 2023/06/12 06:43 PMCR- 2023/06/08 CRDT- 2023/06/08 23:28 PHST- 2022/10/07 00:00 [received] PHST- 2023/05/30 00:00 [accepted] PHST- 2023/06/12 06:43 [medline] PHST- 2023/06/09 01:09 [pubmed] PHST- 2023/06/08 23:28 [entrez] PHST- 2023/06/08 00:00 [pmc-release] AID - 10.1038/s42003-023-04993-x [pii] AID - 4993 [pii] AID - 10.1038/s42003-023-04993-x [doi] PST - epublish SO - Commun Biol. 2023 Jun 8;6(1):618. doi: 10.1038/s42003-023-04993-x.