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Hajar CGN, Md Akhir S, Zefarina Z, Riffin NSM, Tuan Mohammad TH, Hassan MN, Aziz MY, Pati S, Chambers GK, Kari ZA, Edinur HA, Che Mat NF. Distribution of 22 Single Nucleotide Polymorphisms in 13 Cytokine Genes in Malays, Chinese, and Indians in Peninsular Malaysia. Genet Test Mol Biomarkers 2022; 26:449-456. [PMID: 36166739 DOI: 10.1089/gtmb.2022.0107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: Cytokines are cell signaling glycoproteins that are particularly important in immunity and inflammatory responses. Therefore, variations, such as single nucleotide polymorphisms (SNPs), in genes encoding for cytokines may have important consequences for their roles in health. Materials and Methods: A total of 222 unrelated, healthy, and un-admixed Malays (n = 97), Chinese (n = 77), and Indians (n = 48) with a median age of 30 years old (range 21-50) were typed for 22 cytokine gene SNPs: IL-1α -889 T/C, IL-1β (-511 T/C, +3962 T/C), IL-1R pst1 1970 T/C, IL-1RA mspa1 11100 T/C, IL-4Rα +1902 G/A, IL-12 - 1188 C/A, IFN-γ +874 A/T, TGF-β (cdn 10 C/T, cdn 25 G/C), TNF-α (-308 A/G, -238 A/G) IL-2 (+166 G/T, -330 T/G), IL-4 (-1098 T/G, -590 T/C, -33 T/C), IL-6 (-174 C/G, nt565 G/A), and IL-10 (-1082 G/A, -819 C/T, -592 A/C). This involved using well-established polymerase chain reaction procedures with sequence-specific primers and restriction fragment length polymorphism methods. Results: The majority of the screened cytokine gene SNPs are polymorphic in all three ethnicities. Exceptions include TGF-β cdn 25 (G/C), IL-1β +3962 (T/C), and TNF-α -238 (A/G), which were all observed to be monomorphic in Malays, Chinese and Indians. Many of the analyzed cytokine gene SNP genotypes deviated from Hardy-Weinberg equilibrium and the three ethnic study groups were all well-separated from reference Asian, African and European populations in a principal component analysis plot. Conclusion: We successfully typed 22 SNPs in 13 cytokine genes from genetic material collected from unrelated and un-admixed Malay, Chinese and Indian individuals in Peninsular Malaysia. These new cytokine gene population datasets reveal interesting contrasts with other populations.
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Affiliation(s)
- Che Ghazali Norul Hajar
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
- Transfusion Medicine Unit, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Suhaida Md Akhir
- Biomedicine Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Zulkafli Zefarina
- Transfusion Medicine Unit, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | | | | | - Mohd Nazri Hassan
- Transfusion Medicine Unit, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Mohd Yusmaidie Aziz
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | | | | | - Zulhisyam Abdul Kari
- Faculty of Agro Based Industry, Universiti Malaysia Kelantan, Kelantan, Malaysia
| | - Hisham Atan Edinur
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
- Transfusion Medicine Unit, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Nor Fazila Che Mat
- Transfusion Medicine Unit, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia
- Biomedicine Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
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Neves JSF, Visentainer JEL, Reis DMDS, Rocha Loures MA, Alves HV, Zacarias JMV, Sell AM. IL17F: A Possible Risk Marker for Spondyloarthritis in HLA-B*27 Negative Brazilian Patients. J Pers Med 2021; 11:jpm11060520. [PMID: 34200121 PMCID: PMC8228173 DOI: 10.3390/jpm11060520] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/07/2021] [Accepted: 05/09/2021] [Indexed: 12/24/2022] Open
Abstract
HLA-B*27 is an important marker for spondyloarthritis (SpA), however, many SpA patients are HLA-B*27 negative. Thus, the aim of this study was to investigate the influence of IL17, TNF and VDR gene polymorphisms in SpA patients who were HLA-B*27 negative. This case-control study was conducted in 158 patients [102 patients with ankylosing spondylitis (AS) and 56 with psoriatic arthritis (PsA)] and 184 controls. HLA-B*27 genotyping was performed using PCR-SSP and IL17A (rs2275913), IL17F (rs763780), TNF-308 (rs1800629), TNF-238 (rs361525), FokI C>T (rs2228570), TaqI C>T (rs731236), ApaI A>C (rs7975232), and BsmI C>T (rs1544410) using PCR-RFLP. Statistical analyses were performed by Chi-square and logistic regression using OpenEpi and SNPStats software. The IL17F C allele frequency was higher in patients with SpA, AS and PsA compared to controls. The IL17F T/C genotype frequency was higher in SpA patients in an overdominant inheritance model and when men and women were separately analyzed. IL17A_IL17F AC haplotype was significantly associated to the risk for SpA patients. As for VDR, the ApaI a/a was a potential risk factor for SpA in men. In conclusion, IL17F C variant contributed to the risk of SpA in Brazilian patients who were HLA-B*27 negative and could be a potential marker for SpA.
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Affiliation(s)
- Janisleya Silva Ferreira Neves
- Post Graduation Program in Biosciences and Physiopathology, Department of Clinical Analysis and Biomedicine, Maringá State University, Paraná 87030-900, Brazil; (J.S.F.N.); (J.E.L.V.); (D.M.d.S.R.); (M.A.R.L.); (H.V.A.); (A.M.S.)
| | - Jeane Eliete Laguila Visentainer
- Post Graduation Program in Biosciences and Physiopathology, Department of Clinical Analysis and Biomedicine, Maringá State University, Paraná 87030-900, Brazil; (J.S.F.N.); (J.E.L.V.); (D.M.d.S.R.); (M.A.R.L.); (H.V.A.); (A.M.S.)
- Post Graduation Program in Biosciences and Physiopathology, Department of Clinical Analysis and Biomedicine and Department of Basic Health Sciences, Maringá State University, Paraná 87030-900, Brazil
| | - Denise Manjurma da Silva Reis
- Post Graduation Program in Biosciences and Physiopathology, Department of Clinical Analysis and Biomedicine, Maringá State University, Paraná 87030-900, Brazil; (J.S.F.N.); (J.E.L.V.); (D.M.d.S.R.); (M.A.R.L.); (H.V.A.); (A.M.S.)
| | - Marco Antonio Rocha Loures
- Post Graduation Program in Biosciences and Physiopathology, Department of Clinical Analysis and Biomedicine, Maringá State University, Paraná 87030-900, Brazil; (J.S.F.N.); (J.E.L.V.); (D.M.d.S.R.); (M.A.R.L.); (H.V.A.); (A.M.S.)
- Department of Medicine, Maringa State University, Paraná 87030-900, Brazil
| | - Hugo Vicentin Alves
- Post Graduation Program in Biosciences and Physiopathology, Department of Clinical Analysis and Biomedicine, Maringá State University, Paraná 87030-900, Brazil; (J.S.F.N.); (J.E.L.V.); (D.M.d.S.R.); (M.A.R.L.); (H.V.A.); (A.M.S.)
| | - Joana Maira Valentini Zacarias
- Post Graduation Program in Biosciences and Physiopathology, Department of Clinical Analysis and Biomedicine, Maringá State University, Paraná 87030-900, Brazil; (J.S.F.N.); (J.E.L.V.); (D.M.d.S.R.); (M.A.R.L.); (H.V.A.); (A.M.S.)
- Correspondence: or ; Tel.: +55-44-99961-7338
| | - Ana Maria Sell
- Post Graduation Program in Biosciences and Physiopathology, Department of Clinical Analysis and Biomedicine, Maringá State University, Paraná 87030-900, Brazil; (J.S.F.N.); (J.E.L.V.); (D.M.d.S.R.); (M.A.R.L.); (H.V.A.); (A.M.S.)
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