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Related Experiment Video

Updated: Oct 7, 2025

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Aging Aggravates Cachexia in Tumor-Bearing Mice.

Julia Geppert1,2,3, Alina A Walth1,2,3, Raúl Terrón Expósito1,2,3

  • 1Institute for Diabetes and Cancer, Helmholtz Center Munich, 85764 Neuherberg, Germany.

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Aging significantly impacts cancer cachexia development in mice, varying by strain. This highlights age as a crucial factor for future cachexia research.

Keywords:
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Area of Science:

  • Oncology
  • Gerontology
  • Metabolism

Background:

  • Cancer cachexia research predominantly uses young mice, despite cancer being a disease of aging.
  • Metabolic and muscle function changes with age, suggesting age may influence cachexia progression.

Purpose of the Study:

  • To investigate the impact of aging on cancer cachexia development and progression in different mouse strains.
  • To compare cachexia markers and inflammatory profiles in young versus aged mice.

Main Methods:

  • Compared tumor and cachexia development in young and old mice across three strains (C57BL/6J, C57BL/6N, BALB/c) using Lewis Lung Cancer and Colon26 cell lines.
  • Assessed tumor size, body/organ weights, muscle fiber area, cachexia biomarkers, and molecular markers of muscle/adipose tissue wasting.
  • Correlated inflammatory markers and body weight with age in cancer patients.

Main Results:

  • Aging exacerbated weight loss in C57BL/6J mice, induced it in C57BL/6N mice, and had no effect in BALB/c mice.
  • Glucose tolerance remained unchanged in cachectic young and old mice.
  • The stress marker GDF15 increased with age in C57BL/6 mice, while inflammatory markers correlated with weight loss only in young mice and patients.

Conclusions:

  • Aging influences cancer cachexia development and progression in a strain-dependent manner.
  • Age impacts the inflammatory profile associated with cachexia in both mice and human patients.
  • Age should be a critical consideration in future cancer cachexia studies.