Abstract
Background: Diabetes mellitus is a long-term disorder with high prevalence globally. It can be classified into two types: Type 1 diabetes and Type 2 diabetes mellitus. Diabetes mellitus is considered a multifactorial disorder in which genetic factors such as cytokines play a major role. Cytokines play a role in immune modulation and are associated with the development of diabetes mellitus. Single nucleotide polymorphisms in cytokines were studied extensively in different populations to determine their association with a predisposition to diabetes mellitus.
Objective: The aim of this study was to estimate the frequency of single nucleotide polymorphisms in the cytokine genes TNF-α, TGF-β, IL-6, IL-10, and IFN-γ in 102 Jordanian diabetes mellitus patients in comparison to 50 controls and their association to diabetes mellitus susceptibility.
Methods: Analysis was performed using the highly specific polymerase chain reaction-sequence specific primers methodology.
Results: Our findings showed that the IL-10-1082 G/G genotype (P = 0.02) and the TGF-β1 codon 25*G allele (P < 0.01) may be considered risk factors for type 2 diabetes mellitus. In addition, the IFN-γ-874*A allele (P = 0.04) seems to increase the predisposition to type 1 diabetes.
Conclusion: Our study showed that the IL-10-1082 G/G genotype and TGF-β1 codon 25*G allele are associated with type 2 diabetes mellitus while the IFN- γ -874*A allele is associated with type 1 diabetes. Our findings may help in the early detection of diabetes mellitus, which would in turn help in undergoing the needed preventative measures to delay the onset of diabetes mellitus.
Keywords: Cytokines, SNPs, Jordan, Type 1 Diabetes, Type 2 Diabetes Mellitus, Polymorphisms.
Graphical Abstract
[http://dx.doi.org/10.2337/dc10-S062] [PMID: 20042775]
[http://dx.doi.org/10.4172/2155-9899.S10-006]
[http://dx.doi.org/10.1186/s12933-018-0787-8] [PMID: 30486889]
[http://dx.doi.org/10.1016/j.diabres.2019.107843]
[http://dx.doi.org/10.1016/j.diabres.2019.107842]
[http://dx.doi.org/10.1371/journal.pone.0161548] [PMID: 27575603]
[http://dx.doi.org/10.1007/s12016-016-8592-1] [PMID: 27878451]
[http://dx.doi.org/10.2337/dc11-0442] [PMID: 21617109]
[http://dx.doi.org/10.1900/RDS.2012.9.6] [PMID: 22972441]
[http://dx.doi.org/10.1111/jphs.12255]
[http://dx.doi.org/10.1016/j.humimm.2020.03.006] [PMID: 32223986]
[http://dx.doi.org/10.1111/tan.12717] [PMID: 26818122]
[http://dx.doi.org/10.2337/db07-1331] [PMID: 18252895]
[http://dx.doi.org/10.1111/cge.13772]
[http://dx.doi.org/10.1038/s41467-018-04951-w] [PMID: 30054458]
[http://dx.doi.org/10.1155/2020/3198671] [PMID: 32685554]
[http://dx.doi.org/10.2337/db10-1782] [PMID: 21357470]
[http://dx.doi.org/10.1002/jcb.26174] [PMID: 28569437]
[http://dx.doi.org/10.1615/CritRevEukaryotGeneExpr.2017019712] [PMID: 29199608]
[http://dx.doi.org/10.1002/eji.200737772] [PMID: 17972343]
[http://dx.doi.org/10.5772/intechopen.74550]
[http://dx.doi.org/10.1007/s10528-012-9499-z] [PMID: 22298356]
[http://dx.doi.org/10.1194/jlr.M037085] [PMID: 23667179]
[http://dx.doi.org/10.1002/(SICI)1096-9136(199805)15:5<435:AID-DIA566>3.0.CO;2-N] [PMID: 9609368]
[http://dx.doi.org/10.4239/wjd.v5.i4.493] [PMID: 25126395]
[http://dx.doi.org/10.1159/000107758] [PMID: 17823503]
[http://dx.doi.org/10.1038/sj.gene.6364301] [PMID: 16642032]
[http://dx.doi.org/10.1016/j.coi.2008.08.002]
[http://dx.doi.org/10.1016/j.cytogfr.2008.11.006] [PMID: 19038572]
[http://dx.doi.org/10.1007/s11033-013-2739-4] [PMID: 24057184]
[http://dx.doi.org/10.1016/j.humimm.2007.05.001] [PMID: 17678725]
[http://dx.doi.org/10.1007/s00005-010-0092-z] [PMID: 20686866]
[http://dx.doi.org/10.1038/s41598-020-77970-7] [PMID: 33273500]
[http://dx.doi.org/10.3390/vaccines10030410] [PMID: 35335042]
[http://dx.doi.org/10.1073/pnas.95.16.9465] [PMID: 9689103]
[http://dx.doi.org/10.1016/S0140-6736(96)06413-6] [PMID: 9111542]
[http://dx.doi.org/10.1111/j.1365-2370.1997.tb00001.x] [PMID: 9043871]
[http://dx.doi.org/10.1146/annurev.immunol.24.021605.090737]
[http://dx.doi.org/10.1097/00007890-199810270-00009] [PMID: 9808485]
[http://dx.doi.org/10.2337/dc09-0476] [PMID: 19592635]
[http://dx.doi.org/10.1007/s00018-005-5259-0] [PMID: 16261264]
[http://dx.doi.org/10.1002/ajmg.10372] [PMID: 11992481]
[http://dx.doi.org/10.1093/abbs/gmt003] [PMID: 23399816]
[http://dx.doi.org/10.1007/s10875-004-6239-0] [PMID: 15622443]
[http://dx.doi.org/10.1016/S1081-1206(10)63052-9] [PMID: 9433360]
[http://dx.doi.org/10.29333/ejgm/82250]
[http://dx.doi.org/10.1016/j.cyto.2009.06.007] [PMID: 19608431]
[http://dx.doi.org/10.1177/0300060513505813] [PMID: 24758873]
[http://dx.doi.org/10.1186/s12902-021-00738-1] [PMID: 33858419]
[http://dx.doi.org/10.1097/01.TP.0000055216.19866.9A] [PMID: 12640314]
[http://dx.doi.org/10.1128/CDLI.6.3.306-310.1999] [PMID: 10225827]
[http://dx.doi.org/10.1016/S0198-8859(00)00167-1] [PMID: 11053629]
[http://dx.doi.org/10.2174/1871530319666191119114031] [PMID: 31742498]
[http://dx.doi.org/10.1186/2251-6581-13-46] [PMID: 24693923]
[http://dx.doi.org/10.1080/08820139.2017.1416398] [PMID: 29257900]
[http://dx.doi.org/10.1155/2011/360312] [PMID: 21508505]
[http://dx.doi.org/10.1186/1471-2350-11-69]
[http://dx.doi.org/10.1111/ijcp.14036] [PMID: 33512081]