PMID- 30356719 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20191120 IS - 1664-2392 (Print) IS - 1664-2392 (Electronic) IS - 1664-2392 (Linking) VI - 9 DP - 2018 TI - Differential Expression of Human Peripheral Mononuclear Cells Phenotype Markers in Type 2 Diabetic Patients and Type 2 Diabetic Patients on Metformin. PG - 537 LID - 10.3389/fendo.2018.00537 [doi] LID - 537 AB - Background: Although peripheral blood mononuclear cells (PBMC) have been demonstrated to be in a pro-inflammatory state in obesity and type 2 Diabetes Mellitus (T2DM), characterization of circulating PBMC phenotypes in the obese and T2DM and the effect of Metformin on these phenotypes in humans is still ill-defined and remains to be determined. Methods: Thirty normal healthy adult volunteers of normal weight, 30 obese subjects, 20 obese newly diagnosed diabetics and 30 obese diabetics on Metformin were recruited for the study. Fasting blood samples were collected and PBMC were isolated from whole blood. Polarization markers (CD86, IL-6, TNFalpha, iNOS, CD36, CD11c, CD169, CD206, CD163, CD68, CD11b, CD16, and CD14) were measured by RT-qPCR. Gene expression fold changes were calculated using the 2(-DeltaDeltaCT) method for RT-qPCR. Results: Obesity and T2DM are associated an increased CD68 marker in PBMC. mRNA expression of CD11b, CD11c, CD169, and CD163 were significantly reduced in PBMC from T2DM subjects whereas CD11c was significantly inhibited in PBMC from obese subjects. On the other hand, macrophage M1-like phenotype was observed in T2DM circulation as demonstrated by increased mRNA expression of CD16, IL-6, iNOS, TNFalpha, and CD36. There were no significant changes in CD14 and CD86 in the obese and T2DM when compared to the lean subjects. Metformin treatment in T2DM reverted CD11c, CD169, IL-6, iNOS, TNFalpha, and CD36 to levels comparable to lean subjects. CD206 mRNA expression was significantly upregulated in PBMC of T2DM while Metformin treatment inhibited CD206 expression levels. Conclusions: These data support the notion that PBMC in circulation in T2DM express different pattern of phenotypic markers than the patterns typically present in M1 and M2 like cells. These phenotypic markers could be representative of metabolically activated macrophages (MMe)-like cells. Metformin, on the other hand, reduces MMe-like cells in circulation. FAU - Al Dubayee, Mohammed S AU - Al Dubayee MS AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. AD - King Abdullah Specialized Children Hospital, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia. FAU - Alayed, Hind AU - Alayed H AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. FAU - Almansour, Rana AU - Almansour R AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. FAU - Alqaoud, Nora AU - Alqaoud N AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. FAU - Alnamlah, Rahaf AU - Alnamlah R AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. FAU - Obeid, Dana AU - Obeid D AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. FAU - Alshahrani, Awad AU - Alshahrani A AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. FAU - Zahra, Mahmoud M AU - Zahra MM AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. FAU - Nasr, Amre AU - Nasr A AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. FAU - Al-Bawab, Ahmad AU - Al-Bawab A AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. FAU - Aljada, Ahmad AU - Aljada A AD - College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. AD - King Abdullah International Medical Research Center, Riyadh, Saudi Arabia. LA - eng PT - Journal Article DEP - 20181009 PL - Switzerland TA - Front Endocrinol (Lausanne) JT - Frontiers in endocrinology JID - 101555782 PMC - PMC6189318 OTO - NOTNLM OT - atherosclerosis OT - inflammation OT - metabolic syndrome OT - metabolically-activated macrophages OT - monocyte subtypes EDAT- 2018/10/26 06:00 MHDA- 2018/10/26 06:01 PMCR- 2018/01/01 CRDT- 2018/10/26 06:00 PHST- 2017/10/28 00:00 [received] PHST- 2018/08/23 00:00 [accepted] PHST- 2018/10/26 06:00 [entrez] PHST- 2018/10/26 06:00 [pubmed] PHST- 2018/10/26 06:01 [medline] PHST- 2018/01/01 00:00 [pmc-release] AID - 10.3389/fendo.2018.00537 [doi] PST - epublish SO - Front Endocrinol (Lausanne). 2018 Oct 9;9:537. doi: 10.3389/fendo.2018.00537. eCollection 2018.