Research

Hormonal

Long-term administration of the dual GLP-1/GIP receptor agonist tirzepatide suppresses mammary tumor growth in diet-induced obese mice by reversing metabolic dysregulation and restoring CD8+ T cell function.

For individuals with obesity and hormone-sensitive or obesity-linked cancers, GLP-1/GIP agonists like tirzepatide may offer a dual benefit of weight loss and tumor suppression by correcting metabolic dysregulation. This suggests that treating obesity pharmacologically could be a viable adjunct strategy in oncology, provided lean mass is monitored.

ModerateSupportsMEDIUM confidence
Long-term tirzepatide treatment induced weight loss, mitigated obesity-driven changes in circulating metabolic hormone levels, and suppressed orthotopic E0771 mammary tumor growth.
Elaine M. Glenny et al. · bioRxiv (Cold Spring Harbor Laboratory) · 2024

Why this rating

Preclinical mouse model (DIO + TNBC); not human clinical data.

Source

Tirzepatide restricts obesity-related tumor growth by reversing metabolic dysregulation and rescuing CD8+ T cell function

Elaine M. Glenny et al. · bioRxiv (Cold Spring Harbor Laboratory) · 2024

DOI 10.1101/2024.01.20.576484

preprint · n=57Cited 14×
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DOI resolved against Crossref · corpus check 2026-06-10

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