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Updated: Jan 31, 2026

The Colon-26 Carcinoma Tumor-bearing Mouse as a Model for the Study of Cancer Cachexia
08:55

The Colon-26 Carcinoma Tumor-bearing Mouse as a Model for the Study of Cancer Cachexia

Published on: November 30, 2016

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Toll-Like Receptor-4 Disruption Suppresses Adipose Tissue Remodeling and Increases Survival in Cancer Cachexia

Felipe Henriques1,2, Magno A Lopes1, Felipe O Franco1

  • 1Integrated Group of Biotechnology, Laboratory of Adipose Tissue Biology, University of Mogi das Cruzes, São Paulo, Brazil.

Scientific Reports
|December 22, 2018
PubMed

Insights

Toll-like receptor 4 (TLR4) inhibition mitigates cancer cachexia in mice. Blocking TLR4 reduces inflammation, body weight loss, and adipose tissue remodeling, offering a potential therapeutic target for this metabolic syndrome.

Area of Science:

  • Oncology
  • Immunology
  • Metabolism

Background:

  • Cancer-induced cachexia is a complex metabolic syndrome.
  • It involves systemic inflammation, weight loss, and muscle wasting.
  • The exact causes of cachexia remain unclear.

Purpose of the Study:

  • To investigate the role of Toll-like receptor 4 (TLR4) in cancer cachexia.
  • To evaluate the therapeutic potential of targeting TLR4.

Main Methods:

  • Used Lewis lung carcinoma (LLC) mouse model.
  • Genetic ablation of TLR4 (TLR4-/- mice).
  • Pharmacological inhibition of TLR4 using Atorvastatin.

Main Results:

  • TLR4 deficiency or inhibition attenuated cachexia markers.
  • Reduced adipose tissue remodeling and macrophage infiltration in TLR4-/- mice.
  • Atorvastatin treatment prolonged survival and reduced tumor mass.
  • Blocked tumor-induced elevation of pro-inflammatory cytokines.

Conclusions:

  • TLR4 is a key mediator in cancer cachexia development.
  • Targeting TLR4 shows promise for novel anti-cachexia therapies.

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