PMID- 34763485 OWN - NLM STAT- MEDLINE DCOM- 20211115 LR - 20220531 IS - 2224-5839 (Electronic) IS - 2224-5820 (Linking) VI - 10 IP - 10 DP - 2021 Oct TI - Mechanism research on the interaction regulation of Escherichia and IFN-gamma for the occurrence of T2DM. PG - 10391-10400 LID - 10.21037/apm-21-2318 [doi] AB - BACKGROUND: Type 2 diabetes mellitus (T2DM) is a major social and public health problem which may be induced by intestinal flora imbalance through inflammatory response, and the specific mechanism remains unclear. In this study, we aim to explore the interaction network of intestinal flora and cell inflammation in T2DM. METHODS: This a case-control study. Patients with T2DM was the case group and healthy people as control. The differences of cytokine expression levels between patients with T2DM and healthy controls were assessed by using flow cytometry. The diversity and abundance of intestinal flora were evaluated by using 16S rRNA three-generation full-length sequencing technology. RESULTS: A total of 29 patients with T2DM and 28 healthy controls were included for analysis. Compared with the healthy control group, the expression levels of plasma cytokine interleukin-2 (IL-2) (P=0.0000006), IL-6 (P=0.000193), tumor necrosis factor alpha (TNF-alpha) (P=0.016), interferon-gamma (IFN-gamma) (P=0.000036) and interleukin-17 (IL-17) (P=0.004) were significantly up-regulated in T2DM patients, and the abundance of Megamonas_funiformis (P=0.0016) and Escherichia (P=0.049) in the intestine were significantly increased. In contrast, the abundance of Bacteroides_stercoris (P=0.0068), Bacteroides_uniformis (P=0.033), and Phascolarctobacterium_faecium (P=0.033) were decreased in T2DM patients. Further, differentially expressed Escherichia had a positive correlation with IFN-gamma (r=0.73) by Pearson correlation analysis. CONCLUSIONS: The interaction network between the intestinal bacteria Escherichia and the cytokine IFN-gamma may drive inflammation in visceral adipose tissue (VAT), indicating insulin signal transduction can be inhibited in adipocytes to induce insulin resistance. FAU - Lv, Meijun AU - Lv M AD - Department of Laboratory Medicine, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China; School of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China. FAU - Li, Lisha AU - Li L AD - Department of Laboratory Medicine, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China. FAU - Li, Weidong AU - Li W AD - Department of Laboratory Medicine, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China; School of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China. FAU - Yang, Fujie AU - Yang F AD - Department of Laboratory Medicine, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China; School of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China. FAU - Hu, Qiongying AU - Hu Q AD - Department of Laboratory Medicine, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China; School of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China. FAU - Xiong, Daqian AU - Xiong D AD - Department of Laboratory Medicine, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China; School of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China. LA - eng PT - Journal Article PL - China TA - Ann Palliat Med JT - Annals of palliative medicine JID - 101585484 RN - 0 (IFNG protein, human) RN - 0 (RNA, Ribosomal, 16S) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Case-Control Studies MH - *Diabetes Mellitus, Type 2/metabolism/microbiology MH - *Escherichia MH - Humans MH - Interferon-gamma/genetics/*metabolism MH - Intestines/*microbiology MH - RNA, Ribosomal, 16S OTO - NOTNLM OT - Type 2 diabetes mellitus (T2DM) OT - cytokines OT - insulin resistancet OT - intestinal flora EDAT- 2021/11/13 06:00 MHDA- 2021/11/16 06:00 CRDT- 2021/11/12 05:27 PHST- 2021/06/28 00:00 [received] PHST- 2021/09/28 00:00 [accepted] PHST- 2021/11/12 05:27 [entrez] PHST- 2021/11/13 06:00 [pubmed] PHST- 2021/11/16 06:00 [medline] AID - 10.21037/apm-21-2318 [doi] PST - ppublish SO - Ann Palliat Med. 2021 Oct;10(10):10391-10400. doi: 10.21037/apm-21-2318.