PMID- 36351893 OWN - NLM STAT- MEDLINE DCOM- 20221117 LR - 20230121 IS - 2041-4889 (Electronic) VI - 13 IP - 11 DP - 2022 Nov 9 TI - Oxidative degradation of dihydrofolate reductase increases CD38-mediated ferroptosis susceptibility. PG - 944 LID - 10.1038/s41419-022-05383-7 [doi] LID - 944 AB - High expression of CD38 in tissues is a characteristic of aging, resulting in a decline in nicotinamide adenine dinucleotide (NAD) and increasing cellular reactive oxygen species (ROS). However, whether CD38 increases susceptibility to ferroptosis remains largely unexplored. Our previous study showed that CD38 overexpression decreased dihydrofolate reductase (DHFR). In the present study, we confirmed that high expression of CD38 increased ROS levels and induced DHFR degradation, which was prevented by nicotinamide mononucleotide (NMN) replenishment. We further revealed that ROS-mediated sulfonation on Cys7 of DHFR induced its degradation via the autophagy and non-canonical proteasome pathways. Mutation of Cys7 to alanine abolished ROS-induced DHFR degradation. Moreover, oxidative degradation of DHFR was responsible for the increased ferroptosis susceptibility of cells in which CD38 was highly expressed. We also found that CD38 expression was higher in bone-marrow-derived macrophages (BMDMs) from aged mice than those from young mice, while the DHFR level was lower. Consequently, we demonstrated that BMDMs from aged mice were more susceptible to ferroptosis that can be reverted by NMN replenishment, suggesting that CD38 high expression rendered cells more susceptible to ferroptosis. Taken together, these results indicated that CD38-mediated NAD(+) decline promoted DHFR oxidative degradation, thus resulting in increased cellular susceptibility to ferroptosis and suggesting that NMN replenishment may protect macrophages from ferroptosis in aged mice. CI - (c) 2022. The Author(s). FAU - Ma, Yingying AU - Ma Y AD - MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, 100084, Beijing, China. FAU - Yi, Meiqi AU - Yi M AD - BeiGene (Beijing) Co., Ltd., 100084, Beijing, China. FAU - Wang, Weixuan AU - Wang W AUID- ORCID: 0000-0002-2613-589X AD - Institute of Chinese Medicine, Guangdong Pharmaceutical University, 510006, Guangzhou, China. FAU - Liu, Xiaohui AU - Liu X AD - MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, 100084, Beijing, China. FAU - Wang, Qingtao AU - Wang Q AD - Beijing Chao-yang Hospital, Capital Medical University, 100043, Beijing, China. FAU - Liu, Chongdong AU - Liu C AD - Beijing Chao-yang Hospital, Capital Medical University, 100043, Beijing, China. FAU - Chen, Yuling AU - Chen Y AUID- ORCID: 0000-0002-8399-2070 AD - MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, 100084, Beijing, China. chenyuling2016@mail.tsinghua.edu.cn. FAU - Deng, Haiteng AU - Deng H AUID- ORCID: 0000-0001-9496-1280 AD - MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systematic Biology, School of Life Sciences, Tsinghua University, 100084, Beijing, China. dht@mail.tsinghua.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221109 PL - England TA - Cell Death Dis JT - Cell death & disease JID - 101524092 RN - 0U46U6E8UK (NAD) RN - 1094-61-7 (Nicotinamide Mononucleotide) RN - 0 (Reactive Oxygen Species) RN - EC 1.5.1.3 (Tetrahydrofolate Dehydrogenase) RN - EC 3.2.2.5 (Cd38 protein, mouse) SB - IM MH - Animals MH - Mice MH - *Ferroptosis MH - *NAD/metabolism MH - Nicotinamide Mononucleotide/pharmacology MH - Oxidative Stress MH - Reactive Oxygen Species/metabolism MH - Tetrahydrofolate Dehydrogenase/genetics PMC - PMC9646779 COIS- The authors declare no competing interests. EDAT- 2022/11/10 06:00 MHDA- 2022/11/15 06:00 PMCR- 2022/11/09 CRDT- 2022/11/09 23:13 PHST- 2022/06/04 00:00 [received] PHST- 2022/10/26 00:00 [accepted] PHST- 2022/10/21 00:00 [revised] PHST- 2022/11/09 23:13 [entrez] PHST- 2022/11/10 06:00 [pubmed] PHST- 2022/11/15 06:00 [medline] PHST- 2022/11/09 00:00 [pmc-release] AID - 10.1038/s41419-022-05383-7 [pii] AID - 5383 [pii] AID - 10.1038/s41419-022-05383-7 [doi] PST - epublish SO - Cell Death Dis. 2022 Nov 9;13(11):944. doi: 10.1038/s41419-022-05383-7.