PMID- 29739101 OWN - NLM STAT- MEDLINE DCOM- 20190909 LR - 20190909 IS - 1433-6510 (Print) IS - 1433-6510 (Linking) VI - 64 IP - 3 DP - 2018 Mar 1 TI - STAT1 and STAT6 Act as Antagonistic Regulators of PPARgamma in Diabetic Patients with and without Cardiovascular Diseases. PG - 287-294 LID - 10.7754/Clin.Lab.2017.171013 [doi] AB - BACKGROUND: The processes that mediate an inflammatory environment and increase atherosclerosis in diabetes are not well understood. Peroxisome proliferator-activated receptors (PPARs) are a subgroup of the nuclear hormone receptor superfamily of ligand-activated transcription factors which play an important role in the pathogenesis of type 2 diabetes mellitus (T2DM) and atherosclerosis. PPARgamma promotes changes in lipid metabolism, especially in fatty acid (FA) trafficking, and the activity of PPARgamma could be modulated by diabetes phenotype patients. Fatty acid translocase CD36 is one of the advanced PPARgamma targets to arbitrate this action. In the current study, we investigated the potential role of signal transducer and activator of transcription STAT1 and STAT6 signaling linked to PPARgamma and its implication in the modulation of lipid metabolism. METHODS: Real-time quantitative reverse transcription polymerase chain reaction (RT-qPCR) was used to quantify target genes in Peripheral Blood Mononuclear Cells (PBMCs) isolated from two diabetic groups: diabetic patients with cardiovascular diseases (D.CVD) and without cardiovascular diseases (D). RESULTS: We demonstrated that PPARgamma and CD36 mRNA expressions were downregulated along D.CVD compared to D (p = 0.002; p = 0.04; respectively). Decreased CD36 was accompanied by elevated levels of plasma triglyceride (TG) concentrations, 0.83 +/- 0.29 vs. 2.46 +/- 0.22), respectively. Furthermore, STAT1 was significantly more expressed in D.CVD (p = 0.01). On the other hand, we demonstrated that STAT6 induces a significant level of PPARgamma mRNA expression in D patients (p = 0.01). CONCLUSIONS: Our results suggest that the expression and activity of PPARgamma mediates CD36 in PBMCs and varies with respect to STAT6 and STAT1 trafficking in diabetic patients with and without cardiovascular diseases. FAU - Bendaya, Imen AU - Bendaya I FAU - Riahi, Aouatef AU - Riahi A FAU - Kharat, Maher AU - Kharat M FAU - Kahla, Saloua AU - Kahla S FAU - Sdiri, Wissem AU - Sdiri W FAU - Oueslati, Ridha AU - Oueslati R LA - eng PT - Journal Article PL - Germany TA - Clin Lab JT - Clinical laboratory JID - 9705611 RN - 0 (CD36 Antigens) RN - 0 (PPAR gamma) RN - 0 (STAT1 Transcription Factor) RN - 0 (STAT1 protein, human) RN - 0 (STAT6 Transcription Factor) RN - 0 (STAT6 protein, human) RN - 0 (Triglycerides) SB - IM MH - Aged MH - CD36 Antigens/genetics/metabolism MH - Cardiovascular Diseases/*genetics/metabolism MH - Diabetes Mellitus, Type 2/*genetics/metabolism MH - Female MH - *Gene Expression Regulation MH - Humans MH - Leukocytes, Mononuclear/metabolism MH - Lipid Metabolism/genetics MH - Male MH - Middle Aged MH - PPAR gamma/*genetics/metabolism MH - STAT1 Transcription Factor/*genetics/metabolism MH - STAT6 Transcription Factor/*genetics/metabolism MH - Signal Transduction/genetics MH - Triglycerides/blood EDAT- 2018/05/09 06:00 MHDA- 2019/09/10 06:00 CRDT- 2018/05/09 06:00 PHST- 2018/05/09 06:00 [entrez] PHST- 2018/05/09 06:00 [pubmed] PHST- 2019/09/10 06:00 [medline] AID - 10.7754/Clin.Lab.2017.171013 [doi] PST - ppublish SO - Clin Lab. 2018 Mar 1;64(3):287-294. doi: 10.7754/Clin.Lab.2017.171013.