Related Experiment Video
Updated: Aug 16, 2025
Isolation and Time-Lapse Imaging of Primary Mouse Embryonic Palatal Mesenchyme Cells to Analyze Collective Movement Attributes
Published on: February 13, 2021
TCDD induces cleft palate through exosomes derived from mesenchymal cells
Qiang Chen1,2, Yue Xie1, Xiaobo Dong1
1Department of Burn and Plastic Surgery, Children's Hospital of Chongqing Medical University, National Clinical Research Centre for Children Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400000 P.R. China.
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure alters exosomes from palatal mesenchymal cells, mimicking TCDD's teratogenic effects on cleft palate development. This suggests TCDD disrupts intercellular communication, leading to abnormal cell behavior and congenital malformations.
Area of Science:
- Developmental Biology
- Environmental Toxicology
- Cell Biology
Background:
- Cleft palate (CP) is a common congenital malformation linked to abnormal palatal shelf fusion.
- 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a known teratogen causing CP.
- Exosomes mediate intercellular communication, influencing cell behavior during development.
Purpose of the Study:
- To investigate how TCDD affects palatal cell communication via exosomes.
- To determine if TCDD-induced exosomes replicate TCDD's teratogenic effects on palate development.
Main Methods:
- Mesenchymal cells were treated with TCDD.
- Exosomes secreted by TCDD-treated cells were collected.
- The effects of these exosomes on palatal cells were assessed.
Main Results:
- TCDD-induced exosomes exhibited effects comparable to TCDD exposure itself.
- This suggests TCDD alters the cargo or function of exosomes secreted by palatal cells.
Conclusions:
- TCDD may induce CP by altering palatal cell-derived exosomes.
- These altered exosomes disrupt normal intercellular communication, leading to abnormal cell behaviors and developmental defects.
