{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:52:45Z","timestamp":1760143965281,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2024,3,6]],"date-time":"2024-03-06T00:00:00Z","timestamp":1709683200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cancers"],"abstract":"<jats:p>In the rapidly evolving landscape of cancer cachexia research, the development and refinement of diagnostic and predictive biomarkers constitute an ongoing challenge. This study aims to introduce longitudinal muscle biopsies as a potential framework for disease monitoring and treatment. The initial feasibility and safety assessment was performed for healthy mice and rats that received two consecutive muscle biopsies. The assessment was performed by utilizing three different tools. Subsequently, the protocol was also applied in leiomyosarcoma tumor-bearing rats. Longitudinal muscle biopsies proved to be a safe and feasible technique, especially in rat models. The application of this protocol to tumor-bearing rats further affirmed its tolerability and feasibility, while microscopic evaluation of the biopsies demonstrated varying levels of muscle atrophy with or without leukocyte infiltration. In this tumor model, sequential muscle biopsies confirmed the variability of the cancer cachexia evolution among subjects and at different time-points. Despite the abundance of promising cancer cachexia data during the past decade, the full potential of muscle biopsies is not being leveraged. Sequential muscle biopsies throughout the disease course represent a feasible and safe tool that can be utilized to guide precision treatment and monitor the response in cancer cachexia research.<\/jats:p>","DOI":"10.3390\/cancers16051075","type":"journal-article","created":{"date-parts":[[2024,3,6]],"date-time":"2024-03-06T08:43:14Z","timestamp":1709714594000},"page":"1075","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Longitudinal Muscle Biopsies Reveal Inter- and Intra-Subject Variability in Cancer Cachexia: Paving the Way for Biopsy-Guided Tailored Treatment"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3190-5753","authenticated-orcid":false,"given":"Panagiotis","family":"Filis","sequence":"first","affiliation":[{"name":"Department of Medical Oncology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"},{"name":"Department of Hygiene and Epidemiology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nikolaos P.","family":"Tzavellas","sequence":"additional","affiliation":[{"name":"Department of Physiology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dimitrios","family":"Stagikas","sequence":"additional","affiliation":[{"name":"Department of Physiology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christianna","family":"Zachariou","sequence":"additional","affiliation":[{"name":"Department of Physiology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Panagiotis","family":"Lekkas","sequence":"additional","affiliation":[{"name":"Department of Physiology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2979-0512","authenticated-orcid":false,"given":"Dimitrios","family":"Kosmas","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1172-1829","authenticated-orcid":false,"given":"Evangelia","family":"Dounousi","sequence":"additional","affiliation":[{"name":"Department of Nephrology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ioannis","family":"Sarmas","sequence":"additional","affiliation":[{"name":"Department of Neurology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3712-4181","authenticated-orcid":false,"given":"Evangelia","family":"Ntzani","sequence":"additional","affiliation":[{"name":"Department of Hygiene and Epidemiology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"},{"name":"Center for Evidence-Based Medicine, Department of Health Services, Policy and Practice, School of Public Health, Brown University, Providence, RI 02912, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Davide","family":"Mauri","sequence":"additional","affiliation":[{"name":"Department of Medical Oncology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anastasios","family":"Korompilias","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1764-8906","authenticated-orcid":false,"given":"Yannis V.","family":"Simos","sequence":"additional","affiliation":[{"name":"Department of Physiology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7032-1630","authenticated-orcid":false,"given":"Konstantinos I.","family":"Tsamis","sequence":"additional","affiliation":[{"name":"Department of Physiology, School of Medicine, University of Ioannina, 45110 Ioannina, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dimitrios","family":"Peschos","sequence":"additional","affiliation":[{"name":"Department of Physiology, School of Medicine, University of Ioannina, 45110 Ioannina, 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