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American Focus > Blog > Tech and Science > Aging Switches on Stem Cells That Drive Belly Fat Growth : ScienceAlert
Tech and Science

Aging Switches on Stem Cells That Drive Belly Fat Growth : ScienceAlert

Last updated: May 1, 2025 7:18 am
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Aging Switches on Stem Cells That Drive Belly Fat Growth : ScienceAlert
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Aging is a natural process that comes with its own set of challenges, one of which is the accumulation of belly fat. Recent research has shed light on how adult stem cells play a crucial role in the development of problematic belly fat cells as we age.

City of Hope endocrinologist Adolfo Garcia-Ocana explains that as we grow older, our bellies tend to expand due to the high output of new fat cells produced by a specific type of stem cell called committed preadipocytes (CP-As). These CP-As are found in white fat tissue, which typically increases in humans during age-related weight gain.

Endocrinologist Qiong (Annabel) Wang further elaborates on how aging triggers the arrival of these age-specific stem cells, leading to a significant increase in the body’s production of new fat cells, particularly around the abdominal area. This phenomenon can occur even without changes in diet and exercise, highlighting the role of aging in the development of excess belly fat.

Researchers have discovered that the aging process influences the proliferation of these stem cells, rather than the environment they are in. Transplanting stem cells from younger mice to older mice did not result in the production of fat cells, indicating that something intrinsic to aging is responsible for this change in cell behavior.

RNA analysis of mouse stem cells revealed differences between young and old cells, with specific signaling pathways like leukemia inhibitory factor receptor (LIFR) playing a crucial role in instructing these stem cells to produce more fat. Targeting these pathways could potentially lead to interventions aimed at reducing belly fat accumulation.

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Studies conducted on human samples also confirmed that older individuals exhibit higher activity levels of these specific stem cells, similar to what was observed in mice. However, researchers emphasize the need for a larger sample size with more diverse donors to confirm if this trend is universal.

In conclusion, understanding the role of CP-As in metabolic disorders and their emergence during aging could pave the way for new medical interventions aimed at reducing belly fat and improving overall health and longevity. Increasing physical activity is recommended as a proactive approach to counteracting age-related changes in fat cell production.

This groundbreaking research, published in the journal Science, opens up new possibilities for addressing age-related belly fat accumulation and its associated health risks.

TAGGED:agingBellycellsDriveFatGrowthScienceAlertSTEMSwitches
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