PMID- 34174560 OWN - NLM STAT- MEDLINE DCOM- 20210727 LR - 20231107 IS - 2213-2317 (Electronic) IS - 2213-2317 (Linking) VI - 45 DP - 2021 Sep TI - Duchenne's muscular dystrophy involves a defective transsulfuration pathway activity. PG - 102040 LID - S2213-2317(21)00199-3 [pii] LID - 10.1016/j.redox.2021.102040 [doi] LID - 102040 AB - Duchenne muscular dystrophy (DMD) is the most frequent X chromosome-linked disease caused by mutations in the gene encoding for dystrophin, leading to progressive and unstoppable degeneration of skeletal muscle tissues. Despite recent advances in the understanding of the molecular processes involved in the pathogenesis of DMD, there is still no cure. In this study, we aim at investigating the potential involvement of the transsulfuration pathway (TSP), and its by-end product namely hydrogen sulfide (H(2)S), in primary human myoblasts isolated from DMD donors and skeletal muscles of dystrophic (mdx) mice. In myoblasts of DMD donors, we demonstrate that the expression of key genes regulating the H(2)S production and TSP activity, including cystathionine gamma lyase (CSE), cystathionine beta-synthase (CBS), 3 mercaptopyruvate sulfurtransferase (3-MST), cysteine dioxygenase (CDO), cysteine sulfonic acid decarboxylase (CSAD), glutathione synthase (GS) and gamma -glutamylcysteine synthetase (gamma-GCS) is reduced. Starting from these findings, using Nuclear Magnetic Resonance (NMR) and quantitative Polymerase Chain Reaction (qPCR) we show that the levels of TSP-related metabolites such as methionine, glycine, glutathione, glutamate and taurine, as well as the expression levels of the aforementioned TSP related genes, are significantly reduced in skeletal muscles of mdx mice compared to healthy controls, at both an early (7 weeks) and overt (17 weeks) stage of the disease. Importantly, the treatment with sodium hydrosulfide (NaHS), a commonly used H(2)S donor, fully recovers the impaired locomotor activity in both 7 and 17 old mdx mice. This is an effect attributable to the reduced expression of pro-inflammatory markers and restoration of autophagy in skeletal muscle tissues. In conclusion, our study uncovers a defective TSP pathway activity in DMD and highlights the role of H(2)S-donors for novel and safe adjuvant therapy to treat symptoms of DMD. CI - Copyright (c) 2021 The Authors. Published by Elsevier B.V. All rights reserved. FAU - Panza, E AU - Panza E AD - Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, Italy. FAU - Vellecco, V AU - Vellecco V AD - Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, Italy. FAU - Iannotti, F A AU - Iannotti FA AD - Institute of Biomolecular Chemistry (ICB), National Research Council (CNR), Pozzuoli (NA), Italy. FAU - Paris, D AU - Paris D AD - Institute of Biomolecular Chemistry (ICB), National Research Council (CNR), Pozzuoli (NA), Italy. FAU - Manzo, O L AU - Manzo OL AD - Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, Italy; Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY, USA. FAU - Smimmo, M AU - Smimmo M AD - Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, Italy. FAU - Mitilini, N AU - Mitilini N AD - UOSC, Pathological Anatomy, A. Cardarelli Hospital, Naples, Italy. FAU - Boscaino, A AU - Boscaino A AD - UOSC, Pathological Anatomy, A. Cardarelli Hospital, Naples, Italy. FAU - de Dominicis, G AU - de Dominicis G AD - UOSC, Pathological Anatomy, A. Cardarelli Hospital, Naples, Italy. FAU - Bucci, M AU - Bucci M AD - Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, Italy. Electronic address: mrbucci@unina.it. FAU - Di Lorenzo, A AU - Di Lorenzo A AD - Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY, USA. FAU - Cirino, G AU - Cirino G AD - Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, Italy. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210619 PL - Netherlands TA - Redox Biol JT - Redox biology JID - 101605639 RN - EC 4.4.1.1 (Cystathionine gamma-Lyase) SB - IM MH - Animals MH - Cystathionine gamma-Lyase/genetics MH - Mice MH - Mice, Inbred C57BL MH - Mice, Inbred mdx MH - Muscle, Skeletal MH - *Muscular Dystrophy, Duchenne/genetics PMC - PMC8246642 OTO - NOTNLM OT - Autophagy OT - Duchenne muscular dystrophy OT - H(2)S donors OT - Inflammation OT - Sodium hydrosulfide (NaHS) COIS- The authors declare no conflict of interest. EDAT- 2021/06/27 06:00 MHDA- 2021/07/28 06:00 PMCR- 2021/06/19 CRDT- 2021/06/26 20:18 PHST- 2021/02/12 00:00 [received] PHST- 2021/05/20 00:00 [revised] PHST- 2021/06/07 00:00 [accepted] PHST- 2021/06/27 06:00 [pubmed] PHST- 2021/07/28 06:00 [medline] PHST- 2021/06/26 20:18 [entrez] PHST- 2021/06/19 00:00 [pmc-release] AID - S2213-2317(21)00199-3 [pii] AID - 102040 [pii] AID - 10.1016/j.redox.2021.102040 [doi] PST - ppublish SO - Redox Biol. 2021 Sep;45:102040. doi: 10.1016/j.redox.2021.102040. Epub 2021 Jun 19.