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Monitoring Dendritic Cell Migration using 19F / 1H Magnetic Resonance Imaging
Published on: March 20, 2013
Aflatoxin B1 Exposure Suppresses the Migration of Dendritic Cells by Reshaping the Cytoskeleton
Kaiyi Tang1, Jiaxiong Tian1, Yujun Xu1,2
1Immune Cells and Antibody Engineering Research Center in University of Guizhou Province, Key Laboratory of Biology and Medical Engineering, School of Biology and Engineering (School of Modern Industry for Health and Medicine)/School of Basic Medical Sciences, Guizhou Medical University, Guiyang 550025, China.
Abstract:
Exposure to Aflatoxin B1 (AFB1) is considered a significant risk factor for human diseases, including the immune function impairment of immune cells. Dendritic cells (DCs), as essential antigen-presenting cells, play a pivotal role in bridging innate and adaptive immunity. However, the impact of AFB1 exposure on DCs has not been fully elucidated. In this study, we investigated the effects of AFB1 exposure on the migration ability of DCs and its underlying action model. Initially, we observed that AFB1 exposure inhibited the survival of DCs and altered their cellular morphology. Further investigation revealed that AFB1 promotes cell adhesion and inhibits DC migration by modulating the expression of cell adhesion molecules. Additionally, our findings indicated that cytoskeletal remodeling plays a crucial role in these processes. Experimental techniques such as immunofluorescence and RNA sequencing confirmed that AFB1 exposure regulates the expression of cytoskeleton-related genes. Moreover, we found that the perturbation of the gene expression profile through AFB1 exposure is associated with cell communication. Collectively, our study findings demonstrate that AFB1 can disrupt the expression of cytoskeleton- and adhesion-related molecules in DCs, thereby altering cell morphology and migration. These insights could provide new perspectives for further understanding the immunosuppressive effects of AFB1 and developing therapeutic strategies for diseases associated with AFB1 exposure.
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