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Related Concept Videos

Cancer Therapies02:49

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Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
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Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
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Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
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The Colon-26 Carcinoma Tumor-bearing Mouse as a Model for the Study of Cancer Cachexia
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Cancer therapy and cachexia.

Tuba Mansoor Thakir1,2, Alice R Wang1,3,4, Amanda R Decker-Farrell1

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The Journal of Clinical Investigation
|August 4, 2025
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Cancer therapies can worsen cachexia, a wasting syndrome, by affecting organs like muscle and brain. Integrating physiological measures alongside tumor response is crucial for effective cancer treatment and patient well-being.

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Area of Science:

  • Oncology
  • Metabolism
  • Physiology

Background:

  • Cancer therapy aims to eliminate tumors but can cause significant side effects.
  • Cancer-associated cachexia is a complex syndrome involving weight loss, inflammation, and metabolic changes.
  • Emerging evidence suggests cancer treatments can directly contribute to or worsen cachexia.

Purpose of the Study:

  • To investigate the intersection between cancer therapeutic interventions and the pathophysiology of cachexia.
  • To explore how treatments impact key organ systems involved in cachexia.
  • To highlight the need for integrated clinical trial endpoints.

Main Methods:

  • Review of literature on cancer therapies and cachexia mechanisms.
  • Focus on the effects of chemotherapy and targeted treatments.
  • Examination of molecular pathways (e.g., IL-6, GDF-15, NF-κB, PKA/CREB) in affected organs.

Main Results:

  • Cancer therapies can upregulate factors like IL-6 and GDF-15, leading to reduced appetite and negative energy balance.
  • Treatments can activate signaling pathways (NF-κB, PKA/CREB) in muscle and adipose tissue, contributing to atrophy.
  • Therapeutic interventions share biological pathways with cancer progression in driving cachexia.

Conclusions:

  • Cancer therapies can exacerbate cachexia through direct effects on organ systems.
  • Understanding treatment timing and modality is key to managing cachexia.
  • Clinical trials should include physiological endpoints to assess overall patient well-being and therapeutic impact.