PMID- 28855812 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 1319-562X (Print) IS - 2213-7106 (Electronic) IS - 2213-7106 (Linking) VI - 24 IP - 6 DP - 2017 Sep TI - TNF-alpha -308G/A and -238G/A polymorphisms and its protein network associated with type 2 diabetes mellitus. PG - 1195-1203 LID - 10.1016/j.sjbs.2016.05.012 [doi] AB - Several reports document the role of tumor necrosis factor alpha (TNF-alpha) and lipid metabolism in the context of acute inflammation as a causative factor in obesity-associated insulin resistance and as one of the causative parameter of type 2 diabetes mellitus (T2DM). Our aim was to investigate the association between -308G/A and -238G/A polymorphisms located in the promoter region of the TNF-alpha gene in T2DM in the Indian population with bioinformatics analysis of TNF-alpha protein networking with an aim to find new target sites for the treatment of T2DM. Demographics of 100 diabetes patients and 100 healthy volunteers were collected in a structured proforma and 3 ml blood samples were obtained from the study group, after approval of Institutional Ethics Committee of the hospital (IEC). The information on clinical parameters was obtained from medical records. Genomic DNA was extracted; PCR-RFLP was performed using TNF-alpha primers specific to detect the presence of SNPs. Various bioinformatics tools such as STRING software were used to determine its network with other associated genes. The PCR-RFLP studies showed that among the -238G/A types the GG genotype was 87%, GA genotype was 12% and AA genotype was 1%. Almost a similar pattern of results was obtained with TNF-alpha -308G/A polymorphism. The results obtained were evaluated statistically to determine the significance. By constructing TNF-alpha protein interaction network we could analyze ontology and hubness of the network to identify the networking of this gene which may influence the functioning of other genes in promoting T2DM. We could identify new targets in T2DM which may function in association with TNF-alpha. Through hub analysis of TNF-alpha protein network we have identified three novel proteins RIPK1, BIRC2 and BIRC3 which may contribute to TNF-mediated T2DM pathogenesis. In conclusion, our study indicated that some of the genotypes of TNF-alpha -308G/A, -238G/A were not significantly associated to type 2 diabetes mellitus, but TNF-alpha -308G/A polymorphism was reported to be a potent risk factor for diabetes in higher age (>45) groups. Also, the novel hub proteins may serve as new targets against TNF-alpha T2DM pathogenesis. FAU - Jamil, Kaiser AU - Jamil K AD - Genetics Department, Bhagwan Mahavir Medical Research Centre, 10-1-1, Mahavir Marg, AC Guards, Hyderabad 500004, Telangana, India. AD - Centre for Biotechnology and Bioinformatics, School of Life Sciences, Jawaharlal Nehru Institute of Advanced Studies (JNIAS), Buddha Bhawan, 6th Floor, M.G. Road, Secunderabad 500003, Telangana, India. FAU - Jayaraman, Archana AU - Jayaraman A AD - Centre for Biotechnology and Bioinformatics, School of Life Sciences, Jawaharlal Nehru Institute of Advanced Studies (JNIAS), Buddha Bhawan, 6th Floor, M.G. Road, Secunderabad 500003, Telangana, India. FAU - Ahmad, Javeed AU - Ahmad J AD - Zoology Department, Osmania University, Hyderabad 500007, Telangana, India. FAU - Joshi, Sindhu AU - Joshi S AD - Mahavir Hospital and Research Centre, 10-1-1, Mahavir Marg, AC Guards, Hyderabad 500004, Telangana, India. FAU - Yerra, Shiva Kumar AU - Yerra SK AD - Cardiology Department, Mahavir Hospital and Research Centre, 10-1-1, Mahavir Marg, AC Guards, Hyderabad 500004, Telangana, India. LA - eng PT - Journal Article DEP - 20160525 PL - Saudi Arabia TA - Saudi J Biol Sci JT - Saudi journal of biological sciences JID - 101543796 PMC - PMC5562469 OTO - NOTNLM OT - Genotypes OT - Polymorphism OT - Protein interaction network OT - SNPs OT - TNF-alpha OT - Type 2 diabetes mellitus EDAT- 2017/09/01 06:00 MHDA- 2017/09/01 06:01 PMCR- 2016/05/25 CRDT- 2017/09/01 06:00 PHST- 2015/10/25 00:00 [received] PHST- 2016/05/01 00:00 [revised] PHST- 2016/05/15 00:00 [accepted] PHST- 2017/09/01 06:00 [entrez] PHST- 2017/09/01 06:00 [pubmed] PHST- 2017/09/01 06:01 [medline] PHST- 2016/05/25 00:00 [pmc-release] AID - S1319-562X(16)30039-0 [pii] AID - 10.1016/j.sjbs.2016.05.012 [doi] PST - ppublish SO - Saudi J Biol Sci. 2017 Sep;24(6):1195-1203. doi: 10.1016/j.sjbs.2016.05.012. Epub 2016 May 25.