Fine Dust Negatively Affects Lung Fibroblasts

[Asia Economy Reporter Junho Hwang] A study has revealed that fine dust can damage fibroblasts in the lungs. It can cause dysfunction not only in the epithelial cells covering the surface of the lungs but also in the fibroblasts inside the lungs, potentially leading to respiratory diseases.

The Environmental Chemistry Research Group at the Safety Evaluation Research Institute announced on the 23rd that they exposed fibroblasts to ultrafine dust (particles with a diameter of 2.5 μm or less) and fine dust (particles with a diameter of 10 μm or less) at a concentration of 50 μg/mL for 72 hours. Fibroblasts are cells that constitute an important component of fibrous connective tissue and play a crucial role in forming tissues and organs. Epithelial cells refer to cells that cover the surface of an animal's body or the internal surfaces of internal organs.

In the lung fibroblasts exposed to ultrafine and fine dust, reactive oxygen species that destroy cells abnormally increased. When reactive oxygen species increase, they damage cells and cause dysfunction of mitochondria within the cells. If mitochondria do not function properly, it hinders the normal activity of lung cells, which can lead to symptoms such as respiratory diseases.

Seo Jongsu, director of the Gyeongnam branch of the Safety Evaluation Research Institute, stated, "Through this study, we have discovered that fine dust can also damage lung fibroblasts. In the future, by utilizing these research results, we will be able to analyze the effects of fine dust on the lungs, brain, and other tissue cells from multiple perspectives."

This content was produced with the assistance of AI translation services.