Key result
Angiotensin II directly affects in vivo cancer growth even at low doses without inducing LVH.
Why the study?
Recent studies suggest a causal relationship between CVD and higher cancer incidence, but the underlying mechanisms remain incompletely understood.
Does angiotensin II increase cancer growth in vivo?
Does angiotensin II increase cancer growth in vivo?
Angiotensin II directly promotes cancer growth in AT1-positive tumors, suggesting the RAAS pathway as a mechanistic link between cardiovascular disease and cancer.
Answers are grounded in this paper and cite their sources.
Raises concern for ANGII-driven cancer growth in CVD; leaves open RAAS inhibition in cardio-oncology.
BACKGROUND: The higher incidence of cancer in patients with cardiovascular disease (CVD) has historically been explained by shared risk factors. Recent studies suggest, however, a causal relationship. Nevertheless, the mechanisms of CVD-induced cancer are incompletely understood. Here, we hypothesize that angiotensin II (ANGII) links CVD and increased cancer growth. OBJECTIVE: We investigated the impact of ANGII-induced CVD on cancer growth in vivo, differentiating between a direct effect of ANGII on tumor cells or indirect effects secondary to CVD. METHODS: mice and (iii) comparing the impact of ANGII on tumor growth in high (LLC) and low (MC38) angiotensin II receptor type I (AT1) expressing tumor cells. RESULTS: mice, even at a low dose that did not induce LV hypertrophy or cardiac fibrosis. Lastly, an analysis of publicly available cancer databases showed that AT1 gene copy number variation is increased in most human cancer lines and tumors. CONCLUSION: This study indicates that ANGII has direct effects on cancer growth, warranting further research into the role of an activated renin-angiotensin-aldosterone-system (RAAS) as a mechanistic link between CVD and cancer growth in AT1-positive tumors.
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Berlo et al. (2026) studied Cardiovascular disease-induced cancer growth. Angiotensin II was evaluated on Cancer growth. Angiotensin II demonstrated direct effects on cancer growth in vivo, even at low doses that did not induce left ventricular hypertrophy or cardiac fibrosis.
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