PMID- 38242315 OWN - NLM STAT- MEDLINE DCOM- 20240423 LR - 20240423 IS - 1523-1747 (Electronic) IS - 0022-202X (Linking) VI - 144 IP - 5 DP - 2024 May TI - N6-Methyladenosine Modification of lncCCKAR-5 Regulates Autophagy in Human Umbilical Cord Mesenchymal Stem Cells by Destabilizing LMNA and Inhibits Diabetic Wound Healing. PG - 1148-1160.e15 LID - S0022-202X(23)03216-5 [pii] LID - 10.1016/j.jid.2023.11.023 [doi] AB - Long noncoding RNAs are pivotal contributors to the development of human diseases. However, their significance in the context of diabetic wound healing regulated by human umbilical cord mesenchymal stem cells (hUCMSCs) remains unclear. This study sheds light on the involvement of lncCCKAR5 in this process. We found that hUCMSCs exposed to high glucose conditions exhibited a significant downregulation of lncCCKAR5 expression, and lncCCKAR5 played a critical role in modulating autophagy, thus inhibiting apoptosis in hUCMSCs. In addition, the reduction of lncCCKAR5 in cells exposed to high glucose effectively thwarted cellular senescence and facilitated filopodium formation. Mechanistically, lncCCKAR5 served as a scaffold that facilitated the interaction between MKRN2 and LMNA, a key regulator of cytoskeletal function and autophagy. The lncCCKAR5/LMNA/MKRN2 complex played a pivotal role in promoting the ubiquitin-mediated degradation of LMNA, with this effect being further augmented by N6-adenosine methylation of lncCCKAR5. Consequently, our findings underscore the critical role of lncCCKAR5 in regulating the autophagic process in hUCMSCs, particularly through protein ubiquitination and degradation. This intricate regulatory network presents a promising avenue for potential therapeutic interventions in the context of diabetic wound healing involving hUCMSCs. CI - Copyright (c) 2023 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Wang, Jian AU - Wang J AD - Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China. FAU - Wang, Xiaotian AU - Wang X AD - Xuzhou Medical University, Xuzhou, China. FAU - Chen, Feifei AU - Chen F AD - Institute of Oncology, Xuzhou Medical University, Xuzhou, China. FAU - Ning, Qianqian AU - Ning Q AD - Institute of Oncology, Xuzhou Medical University, Xuzhou, China. FAU - Liu, YuTing AU - Liu Y AD - Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China. FAU - Zhu, Yun AU - Zhu Y AD - Xuzhou Medical University, Xuzhou, China. FAU - Wei, Wuhan AU - Wei W AD - Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China. FAU - Leng, Mengqi AU - Leng M AD - Xuzhou Medical University, Xuzhou, China. FAU - Wang, Ziyi AU - Wang Z AD - Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China. FAU - Jin, Peisheng AU - Jin P AD - Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China. Electronic address: 100000401006@xzhmu.edu.cn. FAU - Li, Qiang AU - Li Q AD - Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China. Electronic address: liq@xzhmu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20240117 PL - United States TA - J Invest Dermatol JT - The Journal of investigative dermatology JID - 0426720 RN - K72T3FS567 (Adenosine) RN - 0 (RNA, Long Noncoding) RN - CLE6G00625 (N-methyladenosine) RN - 0 (Lamin Type A) RN - 0 (LMNA protein, human) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Humans MH - *Autophagy/drug effects MH - *Adenosine/*analogs & derivatives/metabolism MH - *Mesenchymal Stem Cells/metabolism/drug effects MH - *Wound Healing/drug effects MH - *Umbilical Cord/cytology MH - *RNA, Long Noncoding/metabolism/genetics MH - *Lamin Type A/metabolism/genetics MH - Mice MH - Cells, Cultured MH - Animals MH - Apoptosis/drug effects MH - Glucose/metabolism/pharmacology MH - Cellular Senescence/drug effects OTO - NOTNLM OT - Cell senescence OT - Diabetic wound OT - Filopodia OT - Human umbilical cord mesenchymal stem cells (hUCMSCs) OT - Ubiquitination EDAT- 2024/01/20 05:42 MHDA- 2024/04/23 15:49 CRDT- 2024/01/19 19:16 PHST- 2023/07/12 00:00 [received] PHST- 2023/10/24 00:00 [revised] PHST- 2023/11/09 00:00 [accepted] PHST- 2024/04/23 15:49 [medline] PHST- 2024/01/20 05:42 [pubmed] PHST- 2024/01/19 19:16 [entrez] AID - S0022-202X(23)03216-5 [pii] AID - 10.1016/j.jid.2023.11.023 [doi] PST - ppublish SO - J Invest Dermatol. 2024 May;144(5):1148-1160.e15. doi: 10.1016/j.jid.2023.11.023. Epub 2024 Jan 17.