1. Cadmium exposure reduces invasion of the human trophoblast-derived HTR-8/SVneo cells by inhibiting cell adhesion and matrix metalloproteinase-9 secretion
- Author
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Lucero Paniagua, Laura Diaz-Cueto, Rebeca Martinez-Quezada, Fabian Arechavaleta-Velasco, and Pablo Dominguez-Lopez
- Subjects
010501 environmental sciences ,Matrix metalloproteinase ,Toxicology ,01 natural sciences ,Cell Line ,03 medical and health sciences ,Cadmium Chloride ,Pregnancy ,Cell Adhesion ,medicine ,Humans ,Secretion ,Zymography ,RNA, Messenger ,Cell adhesion ,030304 developmental biology ,0105 earth and related environmental sciences ,0303 health sciences ,Dose-Response Relationship, Drug ,Chemistry ,Trophoblast ,Adhesion ,Molecular biology ,Trophoblasts ,medicine.anatomical_structure ,Maternal Exposure ,Cell culture ,Matrix Metalloproteinase 2 ,Female ,Intracellular ,Cadmium - Abstract
Preeclampsia and intrauterine growth restriction, multisystemic disorders characterized by a shallow trophoblast invasion, have been associated with maternal cadmium (Cd) exposure. The molecular mechanisms of this association remain unknown. Cell adhesion and matrix metalloproteinase production are essential for an adequate trophoblast invasion. Thus, the aim of this study was to determine the effect of Cd exposure on invasion, adhesion, and matrix metalloproteinase-9 (MMP-9) production in the trophoblast-derived HTR-8/SVneo cell line. Cultured HTR-8/SVneo trophoblast cells were incubated with different concentrations of CdCl2 for 6 h. Cell invasion was determined by the transwell assay, while cell adhesion was examined on collagen type I. MMP-9 release and activity were measured by ELISA and zymography, respectively. MMP-9 mRNA expression was detected by reverse-transcription polymerase chain reaction, while intracellular MMP-9 protein was assessed by Western blotting. Cd exposure significantly decreased the invasion and adhesion of HTR-8/SVneo cells. Also, MMP-9 levels and activity in the culture medium were significantly reduced after Cd incubation. In contrast, MMP-9 mRNA expression and intracellular protein levels were significantly increased. These data indicate that Cd reduces trophoblast cells invasiveness by inhibiting cell adhesion and MMP-9 secretion.
- Published
- 2021
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