Molecular interaction between tissue repair via SDF-1/CXCR4 signaling and the inflammatory response in acute myocardial infarction with ST-segment elevation

Abstract

• The inflammatory response/ischemic damage relationship is a prerequisite for the initiation of the process of adaptation of the post-infarction cardiac tissue, in which the SDF-1/CXCR4 signaling plays a central role in tissue repair. This study aimed to investigate the modulation exerted by the SDF-1/CXCR4 axis on the inflammatory response after ST-segment elevation acute myocardial infarction (STEMI). Therefore, we developed Bayesian Networks from microarray (GEO) data and evaluated the expression of transcripts of interest in patients with STEMI by qPCR. In the chronic and anti-inflammatory scenario, we verified a relationship between proteins involved in tissue remodeling and the blockade of apoptotic pathways. The expression levels of the transcripts evaluated were increased in the initial moments after the infarction. In conclusion, the effects promoted by the SDF-1/CXCR4 interaction can be modulated according to the immunological profile, directly influencing its adaptive and cardioprotective effects. Therefore, we believe that students can contribute to the awareness of family and friends about COVID-19 and fake news.