PMID- 32431798 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220414 IS - 2008-2835 (Print) IS - 2008-4625 (Electronic) IS - 2008-2835 (Linking) VI - 12 IP - 2 DP - 2020 Apr-Jun TI - Gene Expression and Levels of TGF-B in PBMC Is Associated with Severity of Symptoms in Chronic Heart Failure. PG - 132-134 AB - BACKGROUND: TGF-beta1 is known to promote cardiac remodeling and fibrosis during Congestive Heart Failure (CHF). In this study, an attempt was made to investigate expression of Transforming Growth Factor beta1 (TGF-beta1) and relative expansion or contraction of regulatory T-cell (Tregs) population in peripheral blood of patients with Chronic Heart Failure (CHF). METHODS: Real-time PCR assay was used to investigate expression and post-stimulation levels of TGF-beta1 in cell culture supernatant of Peripheral Blood Mononuclear Cells (PBMC) of 42 patients with CHF and 42 controls. Flow cytometry was used to identify relative counts of CD4(+)CD25(+)FoxP3(+) Tregs. RESULTS: PBMCs in patients with CHF expressed higher levels of TGF-beta1 compared to controls. Post-stimulation levels of TGF-beta1 expression were significantly higher in New York Heart Association (NYHA) functional class IV patients compared to stage I patients. Tregs were significantly expanded in PBMC in CHF, while the CD4(+) helper T-cells were unchanged. Treg expansion was more significant in NYHA functional class I patients compared to class IV patients. CONCLUSION: Expansion of Treg population in CHF provides an extrinsic source for TGF-beta1 production to induce reactive fibrosis and cardiac remodeling. Relative decrease in Treg population at advanced stages of CHF is indicative of a loss of regulatory characteristics in these cells and unopposed proinflammatory milieu. CI - Copyright(c) 2020 Avicenna Research Institute. FAU - Saadati, Samaneh AU - Saadati S AD - Department of Immunology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran. FAU - Eskandari, Vajiheh AU - Eskandari V AD - Cellular and Molecular Research Center, Faculty of Medicine, Guilan University of Medical Sciences, Rasht, Iran. FAU - Rahmani, Farzaneh AU - Rahmani F AD - Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran. AD - NeuroImaging Network (NIN), Universal Scientific Education and Research Network (USERN), Tehran, Iran. FAU - Mahmoudi, Mohammad Jafar AU - Mahmoudi MJ AD - Department of Cardiology, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran. FAU - Rahnemoon, Zahra AU - Rahnemoon Z AD - Cardiac Heart Center, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran. FAU - Rahmati, Zahra AU - Rahmati Z AD - Department of Immunology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran. FAU - Gorzin, Fatemeh AU - Gorzin F AD - Department of Immunology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran. FAU - Hedayat, Mona AU - Hedayat M AD - Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA. AD - Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Boston, MA, USA. FAU - Amirzargar, Ali Akbar AU - Amirzargar AA AD - Department of Immunology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran. FAU - Rezaei, Nima AU - Rezaei N AD - Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran. AD - Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Boston, MA, USA. LA - eng PT - Journal Article PL - Iran TA - Avicenna J Med Biotechnol JT - Avicenna journal of medical biotechnology JID - 101511065 PMC - PMC7229453 OTO - NOTNLM OT - Cell culture techniques OT - Chronic heart failure OT - T-lymphocytes OT - Transforming growth factor beta1 EDAT- 2020/05/21 06:00 MHDA- 2020/05/21 06:01 PMCR- 2020/04/01 CRDT- 2020/05/21 06:00 PHST- 2020/05/21 06:00 [entrez] PHST- 2020/05/21 06:00 [pubmed] PHST- 2020/05/21 06:01 [medline] PHST- 2020/04/01 00:00 [pmc-release] AID - AJMB-12-132 [pii] PST - ppublish SO - Avicenna J Med Biotechnol. 2020 Apr-Jun;12(2):132-134.