Related Experiment Video
Updated: Jun 10, 2025
Isolation and Culturing of Primary Murine Adipocytes from Lean and Obese Mice
Published on: January 24, 2025
Microplastic exposure linked to accelerated aging and impaired adipogenesis in fat cells
Hanbyeol Moon1, Damin Jeong2, Jung-Won Choi3
1Department of Integrated Omics for Biomedical Sciences, Graduate School, Yonsei University, Seoul, 03722, Republic of Korea.
Abstract:
Our research explores the detrimental effects of microplastic (MP) exposure on adipose tissue aging and function, emphasizing the potential health risks associated with environmental pollutants. Utilizing both in vivo and in vitro models, we discovered that MPs accumulate in adipose tissues, leading to cellular senescence, inflammation, and hindered adipogenic differentiation. Notably, our findings demonstrate that MPs prompt an aging response in both epididymal and inguinal white adipose tissue, increase senescence-associated β-galactosidase activity, and upregulate key senescence and inflammatory markers. Furthermore, we show that MPs disrupt normal adipogenic differentiation by reducing lipid droplet formation and downregulating critical adipogenic markers. These insights highlight the urgent need for further investigation into the long-term consequences of MP pollution on biological aging and underscore the importance of developing public health strategies to mitigate these effects.
Insights
Microplastic exposure accelerates adipose tissue aging and impairs function by causing inflammation and hindering cell differentiation. This highlights environmental pollutants
Area of Science:
- Environmental Health
- Cellular Biology
- Metabolic Research
Background:
- Microplastics (MPs) are pervasive environmental pollutants with largely unknown biological impacts.
- Adipose tissue plays a crucial role in metabolic health and energy homeostasis.
- Environmental pollutants are increasingly recognized for their potential to disrupt normal physiological processes.
Purpose of the Study:
- To investigate the effects of microplastic exposure on adipose tissue aging and function.
- To elucidate the cellular mechanisms underlying microplastic-induced adipose tissue dysfunction.
- To assess the impact of microplastics on adipogenesis and associated inflammatory pathways.
Main Methods:
- Utilized both in vivo (animal models) and in vitro (cell culture) experimental approaches.
- Quantified microplastic accumulation within adipose tissues.
- Assessed cellular senescence markers (e.g., β-galactosidase activity) and inflammatory markers.
- Evaluated adipogenic differentiation capacity and lipid droplet formation.
Main Results:
- Microplastics were found to accumulate in epididymal and inguinal white adipose tissues.
- MP exposure induced cellular senescence, increased inflammation, and upregulated senescence-associated markers.
- Microplastics significantly hindered adipogenic differentiation, reducing lipid accumulation and downregulating key markers.
Conclusions:
- Microplastic exposure accelerates adipose tissue aging and impairs its metabolic function.
- MP-induced cellular senescence and inflammation contribute to adipose tissue dysfunction.
- These findings underscore the need for public health strategies to address microplastic pollution's health risks.
