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MTR4 protein declines with age in blood vessel cells and mice, study reports

News report · Lifespan.io · Oct 19, 2026

What happened

Researchers publishing in Aging Cell found that the regulatory protein MTR4 protects blood vessel lining cells from DNA damage but decreases with aging. In human umbilical cord endothelial cells, mice and C. elegans, higher MTR4 reduced senescence markers and SASP expression, and overexpression extended worm lifespan. The authors link this to BUB3 and BUBR1 and describe MTR4 as a conserved antiaging factor in the vascular endothelium.

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The original

Headline
An RNA Regulator Mitigates Senescence in Blood Vessels
From
Lifespan.io (news report)
Published
Oct 19, 2026

Researchers publishing in Aging Cell have found that the regulatory protein MTR4 fights DNA damage in the blood vessel lining […]

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