PMID- 32566245 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210703 IS - 2056-3973 (Print) IS - 2056-3973 (Electronic) IS - 2056-3973 (Linking) VI - 6 DP - 2020 TI - Lifespan and healthspan benefits of exogenous H(2)S in C. elegans are independent from effects downstream of eat-2 mutation. PG - 6 LID - 10.1038/s41514-020-0044-8 [doi] LID - 6 AB - Caloric restriction (CR) is one of the most effective interventions to prolong lifespan and promote health. Recently, it has been suggested that hydrogen sulfide (H(2)S) may play a pivotal role in mediating some of these CR-associated benefits. While toxic at high concentrations, H(2)S at lower concentrations can be biologically advantageous. H(2)S levels can be artificially elevated via H(2)S-releasing donor drugs. In this study, we explored the function of a novel, slow-releasing H(2)S donor drug (FW1256) and used it as a tool to investigate H(2)S in the context of CR and as a potential CR mimetic. We show that exposure to FW1256 extends lifespan and promotes health in Caenorhabditis elegans (C. elegans) more robustly than some previous H(2)S-releasing compounds, including GYY4137. We looked at the extent to which FW1256 reproduces CR-associated physiological effects in normal-feeding C. elegans. We found that FW1256 promoted healthy longevity to a similar degree as CR but with fewer fitness costs. In contrast to CR, FW1256 actually enhanced overall reproductive capacity and did not reduce adult body length. FW1256 further extended the lifespan of already long-lived eat-2 mutants without further detriments in developmental timing or fertility, but these lifespan and healthspan benefits required H(2)S exposure to begin early in development. Taken together, these observations suggest that FW1256 delivers exogenous H(2)S efficiently and supports a role for H(2)S in mediating longevity benefits of CR. Delivery of H(2)S via FW1256, however, does not mimic CR perfectly, suggesting that the role of H(2)S in CR-associated longevity is likely more complex than previously described. CI - (c) The Author(s) 2020. FAU - Ng, Li Theng AU - Ng LT AD - Ageing Research Laboratory, Science Division, Yale-NUS College, Singapore, 138527 Singapore. ISNI: 0000 0004 4651 0380. GRID: grid.463064.3 AD - Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e AD - Neurobiology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117456 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e FAU - Ng, Li Fang AU - Ng LF AD - Ageing Research Laboratory, Science Division, Yale-NUS College, Singapore, 138527 Singapore. ISNI: 0000 0004 4651 0380. GRID: grid.463064.3 FAU - Tang, Richard Ming Yi AU - Tang RMY AD - Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e AD - Neurobiology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117456 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e AD - NUS Graduate School for Integrative Sciences & Engineering, National University of Singapore, Singapore, 117456 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e FAU - Barardo, Diogo AU - Barardo D AD - Ageing Research Laboratory, Science Division, Yale-NUS College, Singapore, 138527 Singapore. ISNI: 0000 0004 4651 0380. GRID: grid.463064.3 AD - Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e FAU - Halliwell, Barry AU - Halliwell B AD - Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e AD - Neurobiology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117456 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e FAU - Moore, Philip Keith AU - Moore PK AD - Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e AD - Neurobiology Programme, Life Sciences Institute, National University of Singapore, Singapore, 117456 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e FAU - Gruber, Jan AU - Gruber J AD - Ageing Research Laboratory, Science Division, Yale-NUS College, Singapore, 138527 Singapore. ISNI: 0000 0004 4651 0380. GRID: grid.463064.3 AD - Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596 Singapore. ISNI: 0000 0001 2180 6431. GRID: grid.4280.e LA - eng PT - Journal Article DEP - 20200610 PL - England TA - NPJ Aging Mech Dis JT - NPJ aging and mechanisms of disease JID - 101678947 PMC - PMC7287109 OTO - NOTNLM OT - Ageing OT - Drug discovery COIS- Competing interestsThe authors declare no competing interests. EDAT- 2020/06/23 06:00 MHDA- 2020/06/23 06:01 PMCR- 2020/06/10 CRDT- 2020/06/23 06:00 PHST- 2019/03/18 00:00 [received] PHST- 2020/03/12 00:00 [accepted] PHST- 2020/06/23 06:00 [entrez] PHST- 2020/06/23 06:00 [pubmed] PHST- 2020/06/23 06:01 [medline] PHST- 2020/06/10 00:00 [pmc-release] AID - 44 [pii] AID - 10.1038/s41514-020-0044-8 [doi] PST - epublish SO - NPJ Aging Mech Dis. 2020 Jun 10;6:6. doi: 10.1038/s41514-020-0044-8. eCollection 2020.