The Sick Adipose Tissue: New Insights Into Defective Signaling and Crosstalk With the Myocardium
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Fecha
2021
Autores
Bermúdez, Valmore
Durán, Pablo
Rojas, Edward
Díaz, María P.
Rivas, José
Nava, Manuel
Chací, Maricarmen
Cabrera de Bravo, Mayela
Carrasquero, Rubén
Cano Ponce, Clímaco
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Editor
Frontiers Media
Resumen
Adipose tissue (AT) biology is linked to cardiovascular health since obesity is associated with cardiovascular disease (CVD) and positively correlated with excessive visceral fat accumulation. AT signaling to myocardial cells through soluble factors known as adipokines, cardiokines, branched-chain amino acids and small molecules like microRNAs, undoubtedly influence myocardial cells and AT function via the endocrine-paracrine mechanisms of action. Unfortunately, abnormal total and visceral adiposity can alter this harmonious signaling network, resulting in tissue hypoxia and monocyte/macrophage adipose infiltration occurring alongside expanded intra-abdominal and epicardial fat depots seen in the human obese phenotype. These processes promote an abnormal adipocyte proteomic reprogramming, whereby these cells become a source of abnormal signals, affecting vascular and myocardial tissues, leading to meta-inflammation, atrial fibrillation, coronary artery disease, heart hypertrophy, heart failure and myocardial infarction. This review first discusses the pathophysiology and consequences of adipose tissue expansion, particularly their association with meta-inflammation and microbiota dysbiosis. We also explore the precise mechanisms involved in metabolic reprogramming in AT that represent plausible causative factors for CVD. Finally, we clarify how lifestyle changes could promote improvement in myocardiocyte function in the context of changes in AT proteomics and a better gut microbiome profile to develop effective, non-pharmacologic approaches to CVD.
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Palabras clave
Adipose tissue, Myocardiocytes, Microbiota, Obesity, Inflammation
Citación
Bermúdez V, Durán P, Rojas E, Díaz MP, Rivas J, Nava M, Chacín M, Cabrera de Bravo M, Carrasquero R, Ponce CC, Górriz JL and D´Marco L (2021) The Sick Adipose Tissue: New Insights Into Defective Signaling and Crosstalk With the Myocardium. Front. Endocrinol. 12:735070. doi: 10.3389/fendo.2021.735070