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The Colon-26 Carcinoma Tumor-bearing Mouse as a Model for the Study of Cancer Cachexia
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Role of Activin A and myostatin in human cancer cachexia

Audrey Loumaye1, Marie de Barsy, Maxime Nachit

  • 1Endocrinology, Diabetology, and Nutrition Department (A.L., M.N., P.L., D.G., J-P.T.), Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, 1200 Brussels, Belgium; Endocrinology and Nutrition (A.L., M.d.B., J-P. T.), and Dietetic Departments (L.F.), King Albert II Cancer Institute (L.F., A.v.M.), Medical Imaging (P.T.), and Laboratory Medicine Departments (D.G.), Cliniques Universitaires St-Luc, 1200 Brussels, Belgium.

The Journal of Clinical Endocrinology and Metabolism
|March 10, 2015
PubMed
Abstract

Insights

Elevated Activin A (ActA) levels are linked to cancer cachexia, a condition causing muscle loss. This study suggests ActA contributes to cancer-related anorexia and cachexia syndrome in patients.

Area of Science:

  • Oncology
  • Metabolic Medicine
  • Molecular Biology

Background:

  • Cancer cachexia is a complex syndrome involving significant skeletal muscle mass loss.
  • Nutritional support alone often fails to fully reverse cachexia.
  • Tumor-derived Activin A (ActA) and Myostatin (Mstn) are implicated in cachexia development.

Purpose of the Study:

  • To investigate the role of ActA and Mstn in the pathogenesis of human cancer cachexia.
  • To explore the association between these factors and clinical outcomes in cancer patients.

Main Methods:

  • Cross-sectional study (ACTICA) of 152 colorectal and lung cancer patients.
  • Clinical, nutritional, and functional assessments were performed.
  • Body composition analysis (CT-scan, anthropometry, bioimpedance) and plasma ActA, Mstn, and Follistatin levels were measured.

Main Results:

  • Cachexia correlated with reduced lean/fat mass, impaired physical function, and lower quality of life.
  • Cachectic patients exhibited higher ActA concentrations (+40%) and lower Mstn concentrations (-35%) compared to non-cachectic patients.
  • ActA levels positively correlated with weight loss and negatively with appetite scores.

Conclusions:

  • Increased circulating ActA concentrations are associated with anorexia and cachexia in cancer patients.
  • The findings suggest ActA may play a significant role in the development of cancer cachexia.
  • Further research into ActA's role could inform therapeutic strategies for cachexia.

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