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Zampieri S, Sandri M, Cheatwood JL, Balaraman RP, Anderson LB, Cobb BA, Latour CD, Hockerman GH, Kern H, Sartori R, Ravara B, Merigliano S, Da Dalt G, Davie JK, Kohli P, Pond AL. The ERG1A K + Channel Is More Abundant in Rectus abdominis Muscle from Cancer Patients Than that from Healthy Humans. Diagnostics (Basel) 2021; 11:diagnostics11101879. [PMID: 34679577 PMCID: PMC8534910 DOI: 10.3390/diagnostics11101879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The potassium channel encoded by the ether-a-gogo-related gene 1A (erg1a) has been detected in the atrophying skeletal muscle of mice experiencing either muscle disuse or cancer cachexia and further evidenced to contribute to muscle deterioration by enhancing ubiquitin proteolysis; however, to our knowledge, ERG1A has not been reported in human skeletal muscle. METHODS AND RESULTS Here, using immunohistochemistry, we detect ERG1A immunofluorescence in human Rectus abdominis skeletal muscle sarcolemma. Further, using single point brightness data, we report the detection of ERG1A immunofluorescence at low levels in the Rectus abdominis muscle sarcolemma of young adult humans and show that it trends toward greater levels (10.6%) in healthy aged adults. Interestingly, we detect ERG1A immunofluorescence at a statistically greater level (53.6%; p < 0.05) in the skeletal muscle of older cancer patients than in age-matched healthy adults. Importantly, using immunoblot, we reveal that lower mass ERG1A protein is 61.5% (p < 0.05) more abundant in the skeletal muscle of cachectic older adults than in healthy age-matched controls. Additionally, we report that the ERG1A protein is detected in a cultured human rhabdomyosarcoma line that may be a good in vitro model for the study of ERG1A in muscle. CONCLUSIONS The data demonstrate that ERG1A is detected more abundantly in the atrophied skeletal muscle of cancer patients, suggesting it may be related to muscle loss in humans as it has been shown to be in mice experiencing muscle atrophy as a result of malignant tumors.
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Affiliation(s)
- Sandra Zampieri
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35122 Padova, Italy; (S.Z.); (B.R.); (S.M.); (G.D.D.)
- Department of Biomedical Sciences, University of Padova, 35122 Padova, Italy; (M.S.); (R.S.)
| | - Marco Sandri
- Department of Biomedical Sciences, University of Padova, 35122 Padova, Italy; (M.S.); (R.S.)
| | - Joseph L. Cheatwood
- Anatomy Department, Southern Illinois University School of Medicine, Carbondale, IL 62902, USA; (J.L.C.); (L.B.A.); (B.A.C.)
| | - Rajesh P. Balaraman
- Department of Chemistry and Biochemistry, Southern Illinois University School of Medicine, Carbondale, IL 62901, USA; (R.P.B.); (P.K.)
| | - Luke B. Anderson
- Anatomy Department, Southern Illinois University School of Medicine, Carbondale, IL 62902, USA; (J.L.C.); (L.B.A.); (B.A.C.)
| | - Brittan A. Cobb
- Anatomy Department, Southern Illinois University School of Medicine, Carbondale, IL 62902, USA; (J.L.C.); (L.B.A.); (B.A.C.)
| | - Chase D. Latour
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
| | - Gregory H. Hockerman
- Medicinal Chemistry and Molecular Pharmacology Department, Purdue University School of Pharmacy, West Lafayette, IN 47906, USA;
| | - Helmut Kern
- Physiko-und Rheumatherapie GmbH, 3100 St. Poelten, Austria;
| | - Roberta Sartori
- Department of Biomedical Sciences, University of Padova, 35122 Padova, Italy; (M.S.); (R.S.)
| | - Barbara Ravara
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35122 Padova, Italy; (S.Z.); (B.R.); (S.M.); (G.D.D.)
| | - Stefano Merigliano
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35122 Padova, Italy; (S.Z.); (B.R.); (S.M.); (G.D.D.)
| | - Gianfranco Da Dalt
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35122 Padova, Italy; (S.Z.); (B.R.); (S.M.); (G.D.D.)
| | - Judith K. Davie
- Biochemistry Department, Southern Illinois University School of Medicine, Carbondale, IL 62902, USA;
| | - Punit Kohli
- Department of Chemistry and Biochemistry, Southern Illinois University School of Medicine, Carbondale, IL 62901, USA; (R.P.B.); (P.K.)
| | - Amber L. Pond
- Anatomy Department, Southern Illinois University School of Medicine, Carbondale, IL 62902, USA; (J.L.C.); (L.B.A.); (B.A.C.)
- Correspondence:
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Carraro U, Yablonka-Reuveni Z. Translational research on Myology and Mobility Medicine: 2021 semi-virtual PDM3 from Thermae of Euganean Hills, May 26 - 29, 2021. Eur J Transl Myol 2021; 31:9743. [PMID: 33733717 PMCID: PMC8056169 DOI: 10.4081/ejtm.2021.9743] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 03/17/2021] [Indexed: 02/08/2023] Open
Abstract
On 19-21 November 2020, the meeting of the 30 years of the Padova Muscle Days was virtually held while the SARS-CoV-2 epidemic was hitting the world after a seemingly quiet summer. During the 2020-2021 winter, the epidemic is still active, despite the start of vaccinations. The organizers hope to hold the 2021 Padua Days on Myology and Mobility Medicine in a semi-virtual form (2021 S-V PDM3) from May 26 to May 29 at the Thermae of Euganean Hills, Padova, Italy. Here the program and the Collection of Abstracts are presented. Despite numerous world problems, the number of submitted/selected presentations (lectures and oral presentations) has increased, prompting the organizers to extend the program to four dense days.
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Affiliation(s)
- Ugo Carraro
- Department of Biomedical Sciences of the University of Padova, Italy; CIR-Myo - Myology Centre, University of Padova, Italy; A-C Mioni-Carraro Foundation for Translational Myology, Padova.
| | - Zipora Yablonka-Reuveni
- Department of Biological Structure, University of Washington School of Medicine, Seattle, WA.
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Di Felice V, Coletti D, Seelaender M. Editorial: Myokines, Adipokines, Cytokines in Muscle Pathophysiology. Front Physiol 2020; 11:592856. [PMID: 33192608 PMCID: PMC7645054 DOI: 10.3389/fphys.2020.592856] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 08/24/2020] [Indexed: 12/17/2022] Open
Affiliation(s)
- Valentina Di Felice
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Dario Coletti
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris-Seine, IBPS, UMR 8256 Biological Adaptation and Ageing, Paris, France.,Department of Anatomical, Histological, Forensic Sciences and Orthopedics, Sapienza University of Rome, Rome, Italy.,Department of Anatomical, Histological, Forensic Sciences and Orthopedics, Interuniversity Institute of Myology, Rome, Italy
| | - Marilia Seelaender
- Department of Surgery, LIM26 HC, Medical School of the University of São Paulo, São Paulo, Brazil
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