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Fahrner A, Alchus Laiferová N, Ukropcová B, Ukropec J, Krützfeldt J. Activation of PDGF Signaling in the Adult Muscle Stem Cell Niche in Patients With Type 2 Diabetes Mellitus. J Clin Endocrinol Metab 2023; 108:2052-2064. [PMID: 36702759 PMCID: PMC10348470 DOI: 10.1210/clinem/dgad041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 01/07/2023] [Accepted: 01/24/2023] [Indexed: 01/28/2023]
Abstract
CONTEXT Type 2 diabetes mellitus (T2D) negatively affects muscle mass and function throughout life. Whether adult muscle stem cells contribute to the decrease in muscle health is not clear and insights into the stem cell niche are difficult to obtain. OBJECTIVE To establish the upstream signaling pathway of microRNA (miR)-501, a marker of activated myogenic progenitor cells, and interrogate this pathway in muscle biopsies from patients with T2D. METHODS Analysis of primary muscle cell cultures from mice and 4 normoglycemic humans and muscle biopsies from 7 patients with T2D and 7 normoglycemic controls using gene expression, information on histone methylation, peptide screening, and promoter assays. RESULTS miR-501 shares the promoter of its host gene, isoform 2 of chloride voltage-gated channel 5 (CLCN5-2), and miR-501 expression increases during muscle cell differentiation. We identify platelet-derived growth factor (PDGF) as an upstream regulator of CLCN5-2 and miR-501 via Janus kinase/signal transducer and activator of transcription. Skeletal muscle biopsies from patients with T2D revealed upregulation of PDGF (1.62-fold, P = .002), CLCN5-2 (2.85-fold, P = .03), and miR-501 (1.73-fold, P = .02) compared with normoglycemic controls. In addition, we observed a positive correlation of PDGF and miR-501 in human skeletal muscle (r = 0.542, P = .045, n = 14). CONCLUSIONS We conclude that paracrine signaling in the adult muscle stem cells niche is activated in T2D. Expression analysis of the PDGF-miR-501 signaling pathway could represent a powerful tool to classify patients in clinical trials that aim to improve muscle health and glucose homeostasis in patients with diabetes.
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Affiliation(s)
- Alexandra Fahrner
- Division of Endocrinology, Diabetes, and Clinical Nutrition, University Hospital Zurich, 8091 Zurich, Switzerland
- Life Science Zurich Graduate School, Biomedicine, University of Zurich, 8057 Zurich, Switzerland
| | - Nikoleta Alchus Laiferová
- Department of Metabolic Disease Research, Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, 84505 Bratislava, Slovakia
| | - Barbara Ukropcová
- Department of Metabolic Disease Research, Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, 84505 Bratislava, Slovakia
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, 81108 Bratislava, Slovakia
| | - Jozef Ukropec
- Department of Metabolic Disease Research, Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, 84505 Bratislava, Slovakia
| | - Jan Krützfeldt
- Division of Endocrinology, Diabetes, and Clinical Nutrition, University Hospital Zurich, 8091 Zurich, Switzerland
- Life Science Zurich Graduate School, Biomedicine, University of Zurich, 8057 Zurich, Switzerland
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Schön M, Marček Malenovská K, Nemec M, Alchus Laiferová N, Straka I, Košutzká Z, Matejička P, Valkovič P, Ukropec J, Ukropcová B. Acute endurance exercise modulates growth differentiation factor 11 in cerebrospinal fluid of healthy young adults. Front Endocrinol (Lausanne) 2023; 14:1137048. [PMID: 37033257 PMCID: PMC10073538 DOI: 10.3389/fendo.2023.1137048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 03/08/2023] [Indexed: 04/11/2023] Open
Abstract
OBJECTIVE Strong evidence supports the benefits of exercise for healthy ageing, including reduced risk of neurodegenerative diseases. Recent studies suggested interorgan crosstalk as a key element of systemic adaptive response, however, the role of specific molecules in mediating exercise effects on the human brain are not fully understood. In the present study, we explored the exercise-related regulation of Growth Differentiation Factor 11 (GDF11) in cerebrospinal fluid (CSF) and blood. METHODS The samples of serum, plasma and CSF were obtained before and 60min after acute exercise (90min run) from twenty healthy young individuals. Additional serum and plasma samples were collected immediately after run. GDF11 protein content (immunoblotting), body composition (bioelectrical impedance), physical fitness (VO2max, cycle spiroergometry) and cognitive functions (standardized computerized tests, Cogstate) were evaluated. RESULTS Running decreased GDF11 protein content in CSF (-20.6%. p=0.046), while GDF11 in plasma and serum were not regulated. Two GDF11-specific antibodies of different origin were used to corroborate this result. Individuals with higher physical fitness displayed greater exercise-induced decrease of GDF11 in CSF than those with lower physical fitness (p=0.025). VO2max correlated positively with GDF11 in serum (r=0.63, p=0.020) as well as with the exercise-induced change in GDF11 levels in CSF (r=0.59, p=0.042). Indirect measure of blood-brain barrier permeability (i.e. CSF/serum albumin ratio) tended to positively correlate with CSF/serum GDF11 ratio (p=0.060). CSF levels of GDF11 correlated positively with cognitive functions, including working memory, both before and after run (p<0.05). CONCLUSION Running-induced down-regulation of the GDF11 protein in the cerebrospinal fluid of healthy young individuals indicates the potential role of GDF11 in the exercise-induced cross-talk between periphery and the brain.
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Affiliation(s)
- Martin Schön
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Karin Marček Malenovská
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Michal Nemec
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Nikoleta Alchus Laiferová
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Igor Straka
- 2 Department of Neurology, Faculty of Medicine, Comenius University, University Hospital Bratislava, Bratislava, Slovakia
| | - Zuzana Košutzká
- 2 Department of Neurology, Faculty of Medicine, Comenius University, University Hospital Bratislava, Bratislava, Slovakia
| | - Peter Matejička
- 2 Department of Neurology, Faculty of Medicine, Comenius University, University Hospital Bratislava, Bratislava, Slovakia
| | - Peter Valkovič
- 2 Department of Neurology, Faculty of Medicine, Comenius University, University Hospital Bratislava, Bratislava, Slovakia
- Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Jozef Ukropec
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Barbara Ukropcová
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
- *Correspondence: Barbara Ukropcová,
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Alchus Laiferová N, Nemec M, Vernerová L, Balážová M, Vokurková M, Oreská S, Klein M, Špiritović M, Tomčík M, Vencovský J, Ukropec J, Ukropcová B. MyomiRs in cultured muscle cells from patients with idiopathic inflammatory myopathy are modulated by disease but not by 6-month exercise training. Clin Exp Rheumatol 2022; 40:346-357. [DOI: 10.55563/clinexprheumatol/69z7za] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 01/17/2022] [Indexed: 11/13/2022]
Affiliation(s)
- Nikoleta Alchus Laiferová
- Institute of Experimental Endocrinology, Biomedical Research Centre, Slovak Academy of Sciences, Bratislava, and Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Michal Nemec
- Institute of Experimental Endocrinology, Biomedical Research Centre, Slovak Academy of Sciences, Bratislava, Slovakia
| | | | - Mária Balážová
- Centre of Biosciences, Slovak Academy of Sciences, Bratislava, Slovakia
| | | | - Sabína Oreská
- Institute of Rheumatology, Prague, and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Martin Klein
- Institute of Rheumatology, Prague, and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Maja Špiritović
- Institute of Rheumatology, Prague, and Department of Physiotherapy, Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic
| | - Michal Tomčík
- Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jiří Vencovský
- Institute of Rheumatology, Prague, and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jozef Ukropec
- Institute of Experimental Endocrinology, Biomedical Research Centre, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Barbara Ukropcová
- Institute of Experimental Endocrinology, Biomedical Research Centre, Slovak Academy of Sciences, Bratislava, and Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia.
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