Galectin-Receptor Interactions Regulates Cardiac Pathology Caused by Trichinella spiralis Infection

作者：Jinghai Yan, Shiguang Huang, Fangli Lü · 发表于：Frontiers in Immunology · 年份：2021 · DOI：10.3389/fimmu.2021.639260 · 被引用次数：9 · 研究领域：Galectins and Cancer Biology、Studies on Chitinases and Chitosanases、Parasitic Diseases Research and Treatment

The parasitic nematode Trichinella spiralis causes trichinellosis, a serious food-borne parasitic zoonosis worldwide. Infection with T. spiralis may also cause myocarditis. In the present study, we used mouse models to assess the impact of blockage of galectin-receptor interactions by α-lactose on cardiac immunopathology during acute T. spiralis experimental infection. Our data demonstrated that, after T. spiralis infection, blockage of galectin-receptor interactions resulted in cardiac dysfunction detected by transthoracic conventional echocardiography, and increased serum Gal-3 level, a biomarker of myocardial damage. In addition, there were increased eosinophil number in peripheral blood, and increased eosinophil infiltration in the heart and spleen tissues accompanied with increased mRNA levels of eosinophil granule proteins (including eosinophil cationic protein (ECP) and eosinophil peroxidase (EPO)) and IL-5 in these organs; increased cardiac fibrosis accompanied with increased Gal-3 and collagen 1 expressions in the hearts of mice with blockage of galectin-receptor interactions after T. spiralis infection. Correlation analysis showed that significant positive correlations existed between the mRNA levels of Gal-3 and ECP/EPO/eosinophil major basic protein/IL-5/CCL11/CCR3/α-SMA/collagen 1 in the hearts of both T. spiralis -infected mice and T. spiralis -infected mice with blockage of galectin-receptor interactions. Our data suggest that galectin-receptor interactions pla...