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Heidari N, Faragher RGA, Pattison G, Dudhia J, Smith RKW. A SIRT1-independent mechanism mediates protection against steroid-induced senescence by resveralogues in equine tenocytes. PLoS One 2024; 19:e0309301. [PMID: 39172877 PMCID: PMC11340939 DOI: 10.1371/journal.pone.0309301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 08/09/2024] [Indexed: 08/24/2024] Open
Abstract
Tendinopathy is a common age-related disease which causes significant morbidity for both human athletes and performance horses. In the latter, the superficial digital flexor tendon is an excellent model for human tendinopathies because it is a functional homologue of the human Achilles tendon and a primary site of injuries with strong similarities to the human disease. Corticosteroids have been previously used clinically to treat tendinopathic inflammation, but they upregulate the p53-p21 axis with concomitant reductions in cell proliferation and collagen synthesis in human tenocytes. This phenotype is consistent with the induction of cellular senescence in vitro and in vivo and probably represents an important clinical barrier to their effective use. Because of the many differences in senescence mechanisms between species, this study aimed to evaluate these mechanisms after corticosteroid treatment in equine tenocytes. Exposure to clinically reflective levels of dexamethasone for 48 hours drove equine tenocytes into steroid induced senescence (SIS). This was characterised by permanent growth arrest and upregulation of p53, the cyclin dependent kinase inhibitors p21waf and p16ink4a as well as the matrix degrading enzymes MMP1, MMP2 and MMP13. SIS also induced a distinctive equine senescence associated secretory phenotype (eSASP) characterised by enhanced secretion of IL-8 and MCP-1. Preincubation with resveratrol or the potent SIRT1 activator SRT1720 prevented SIS in equine tenocytes, while treatment with the non-SIRT1 activating resveratrol analogue V29 was equally protective against SIS, consistent with a novel, as yet uncharacterised SIRT1-indendent mechanism which has relevance for the development of future preventative and therapeutic strategies.
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Affiliation(s)
- Neda Heidari
- Department of Clinical Sciences and Services, The Royal Veterinary College of University of London, North Mymms, Hertfordshire, United Kingdom
| | - Richard G. A. Faragher
- Department of Clinical Sciences and Services, The Royal Veterinary College of University of London, North Mymms, Hertfordshire, United Kingdom
| | - Graham Pattison
- School of Applied Sciences, University of Brighton, Brighton, East Sussex, United Kingdom
| | - Jayesh Dudhia
- School of Chemistry, College of Health and Science, University of Lincoln, Lincoln, United Kingdom
| | - Roger K. W. Smith
- School of Chemistry, College of Health and Science, University of Lincoln, Lincoln, United Kingdom
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Xu K, Lin C, Ma D, Chen M, Zhou X, He Y, Moqbel SAA, Ma C, Wu L. Spironolactone Ameliorates Senescence and Calcification by Modulating Autophagy in Rat Tendon-Derived Stem Cells via the NF- κB/MAPK Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5519587. [PMID: 34306308 PMCID: PMC8263237 DOI: 10.1155/2021/5519587] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/24/2021] [Accepted: 05/28/2021] [Indexed: 12/19/2022]
Abstract
Tendinopathy is a disabling musculoskeletal disease, the pathological process of which is tightly associated with inflammation. Spironolactone (SP) has been widely used as a diuretic in clinical practice. Recently, SP has shown anti-inflammatory features in several diseases. Tendon-derived stem cells (TDSCs), a subset cell type from tendon tissue possessing clonogenic capacity, play a vital role in the pathological process of tendinopathy. In the present study, the protective effect of SP on TDSCs was demonstrated under simulated tendinopathy conditions both in vitro and in vivo. SP contributed to the maintenance of TDSC-specific genes or proteins, while suppressing the interleukin- (IL-) 1β-induced overexpression of inflammation-mediated factors. Additionally, IL-1β-induced cellular senescence in TDSCs was inhibited, while autophagy was enhanced, as determined via β-galactosidase activity, western blot (WB), and quantitative real-time polymerase chain reaction analysis. With the aid of several emerging bioinformatics tools, the mitogen-activated protein kinase (MAPK) pathway likely participated in the effect of SP, which was further validated through WB analysis and the use of MAPK agonist. Immunofluorescence analysis and an NF-κB agonist were used to confirm the inhibitory effect of SP on IL-1β-induced activation of the NF-κB pathway. X-ray, immunofluorescence, immunohistochemistry, hematoxylin and eosin staining, histological grades, and Masson staining showed that SP ameliorated tendinopathy in an Achilles tenotomy (AT) rat model in vivo. This work elucidates the protective role of SP on the pathological process of tendinopathy both in vitro and in vivo, indicating a potential therapeutic strategy for tendinopathy treatment.
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Affiliation(s)
- Kai Xu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - Changjian Lin
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - Diana Ma
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - Mengyao Chen
- Department of Medical Oncology, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xing Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - Yuzhe He
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - Safwat Adel Abdo Moqbel
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - Chiyuan Ma
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, China
| | - Lidong Wu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
- Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, China
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