City of Hope Identifies CP-A Stem Cells Driving Belly Fat With Age
Updated
Updated · ScienceDaily · Jun 27
City of Hope Identifies CP-A Stem Cells Driving Belly Fat With Age
1 articles · Updated · ScienceDaily · Jun 27
Summary
City of Hope researchers found that aging triggers a newly identified stem-cell population—committed preadipocytes, age-specific, or CP-As—that sharply boosts production of new belly fat cells.
Mouse transplant experiments showed adipocyte progenitor cells from older mice generated many more fat cells than those from young mice, indicating the fat-building drive is intrinsic to aging cells.
Single-cell RNA sequencing linked that shift to middle age, when some progenitor cells convert into CP-As and rely on LIFR signaling to multiply and mature into fat cells.
Human tissue samples from middle-aged people also contained more CP-A-like cells with strong fat-forming capacity, suggesting the mechanism may extend beyond mice.
The Science study points to CP-As and the LIFR pathway as potential anti-obesity targets as researchers test ways to track, block or eliminate the cells.
Can lifestyle changes like diet or exercise directly influence the newly discovered fat-creating stem cells in our bodies?
Is the newly discovered 'fat switch' a biological flaw of aging or a misunderstood survival mechanism from our past?
If scientists block the body's ability to create new belly fat, could the consequences be even more dangerous?
Breakthrough Discovery: CP-A Stem Cells and LIFR Pathway Identified as Key Drivers of Middle-Age Belly Fat and Metabolic Risk (2026)
Overview
Recent research has made a major breakthrough in understanding why belly fat increases with age. Scientists have identified a special type of cell, called CP-A cells, that appears in middle age and is directly linked to the rapid buildup of abdominal fat. This discovery provides a clear cellular explanation for middle-aged weight gain, moving beyond the idea that it is only caused by lifestyle choices. The activity of CP-A cells also helps explain why middle-aged adults, especially men, are more likely to develop metabolic disorders like insulin resistance and type 2 diabetes. This new understanding opens the door to targeted therapies in the future.