作者: Rubén Carrero , César Trigueros , Akaitz Dorronsoro , Jose María Sanchez-Puelles , Antonio Diez-Juan
关键词: Wound healing 、 Hypoxia-Inducible Factor 1-Alpha 、 Cancer research 、 Hypoxia (medical) 、 Cell adhesion 、 Downregulation and upregulation 、 Angiogenesis 、 Mesenchymal stem cell 、 Paracrine signalling 、 Biology 、 Immunology
摘要: Mesenchymal stem cells (MSC) are effective in treating myocardial infarction (MI) and previous reports demonstrated that hypoxia improves MSC self-renewal therapeutics. Considering hypoxia-inducible factor-1 alpha (HIF-1α) is a master regulator of the adaptative response to hypoxia, we hypothesized HIF-1α overexpression could mimic some mechanisms triggered by increase their therapeutic potential without stimulation. Transduction with lentivirus vectors (MSC-HIF) resulted increased cell adhesion migration, activation target genes coding for paracrine factors. When MSC-HIF were intramyocardially injected infarcted nude rats, significant improvement was found (after treatment rats MSC-HIF) terms cardiac function, angiogenesis, cardiomyocyte proliferation, reduction fibrotic tissue no induction hypertrophy. This finding provides evidences crucial role on biology suggests stabilization as novel strategy cellular therapies.