Researchers Identify Protein Causing Visceral Fat Hardening
THBS1 protein linked to inflammation and fibrosis in visceral adipose tissue.
1Visceral Fat and Fibrosis
Visceral fat, located between abdominal organs, is known to be more harmful than subcutaneous fat. Recent research highlights that this tissue often undergoes fibrosis, where it hardens like scar tissue. This process is closely linked to metabolic conditions such as type 2 diabetes and various cardiovascular diseases in patients.
2The Role of THBS1
A joint research team from Seoul National University Bundang Hospital and POSTECH identified the protein THBS1 as a key driver of this pathology. By analyzing Korean patients, they discovered that THBS1 expression levels correlate directly with the severity of obesity and diabetes, triggering inflammation and tissue hardening within fat cells.
3Study Methodology and Participants
The study compared gene expression in visceral fat cells from 21 Korean participants. The cohort was divided into three distinct groups: eight individuals with normal weight, five with obesity, and eight with both obesity and diabetes. This comparative analysis allowed researchers to map how gene activity changes across different metabolic states.
4Cellular Mechanism of Damage
THBS1 acts by stimulating immune cells to release signaling molecules that promote fibrosis. This leads to the accumulation of collagen within the adipose tissue, effectively transforming healthy energy-storing fat into a rigid, inflamed state. Furthermore, this protein hinders the development of healthy fat cells, reducing their ability to absorb blood glucose.
5Impact on Metabolic Health
The research demonstrates that the health of visceral fat, rather than just total body weight, is a critical factor in metabolic disease risk. When THBS1 is active, it creates a feedback loop that worsens insulin resistance and systemic inflammation, making it significantly harder for the body to manage blood sugar levels effectively.
6Potential Therapeutic Strategy
In laboratory experiments, researchers applied antibodies to block the action of THBS1 in visceral fat tissue taken from patients with obesity and diabetes. This intervention successfully reduced the expression of genes associated with fibrosis and inflammation, suggesting a potential new strategy for treating metabolic diseases by targeting this specific protein.
7Significance of the Findings
This study is particularly notable for identifying the core factor responsible for diseased fat tissue directly from human patient samples. By pinpointing THBS1, scientists have provided a clear target for future clinical interventions aimed at reversing or preventing the hardening of visceral fat, which is a major health concern today.
8Future Clinical Implications
While the current findings are based on cellular and animal models, they offer a promising path for future drug development. Researchers emphasize that understanding the specific molecular mechanisms behind fat tissue degradation is essential for creating personalized treatments for patients struggling with obesity-related metabolic disorders and chronic inflammatory conditions worldwide.
Original article: Kyunghyang — Researchers Identify Protein Causing Visceral Fat Hardening