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Jelassi R, Dhouioui S, Ben Salah H, Saidi N, Mzoughi N, Ammi R, Bouratbine A, Aoun K, Zidi I, Chelbi H. rs401502 and rs11575934 Polymorphisms of the IL-12 Receptor Beta 1 Gene are Protective Against Colorectal Carcinogenesis. Front Genet 2022; 13:864419. [PMID: 35646062 PMCID: PMC9136319 DOI: 10.3389/fgene.2022.864419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Colorectal cancer (CRC) is a major public health problem worldwide and in Tunisia. It ranks among the main cancers in terms of incidence and cancer-related cause of death. Its pathogenesis is currently considered to be multifactorial involving genetic and environmental factors. Recent studies have suggested that the gene encoding the β1 subunit of the IL-12 receptor, an important pro-inflammatory cytokine of the anti-tumor response, could be involved in the susceptibility to inherited CRC. Hence, it would be interesting to study the role of single nucleotide polymorphisms (SNPs) within the IL-12RB1 gene (rs401502 and rs11575934) in CRC susceptibility. Aim: Our purpose was to assess whether genetic variants IL-12RB1 +1196G/C (rs401502) and IL-12RB1 +705A/G (rs11575934) within the IL-12RB1 gene are associated with the sporadic CRC risk. Methods: A total of 110 Tunisian patients with sporadic CRC and 141 healthy control subjects were included in this study. Genotyping was performed by high-resolution melting (HRM) analysis. All results were confirmed by direct DNA sequencing or PCR-RFLP methods. Later, the allele frequencies and genotype distribution were established and compared between the control group and CRC patients. Results: The obtained results showed that the two target SNPs were in Hardy–Weinberg equilibrium (HWE) in both patients and controls. Minor allele frequencies of rs401502 SNP were 16.4% in CRC cases and 23.8% in controls. Mutant allele of rs11575934 SNP was present with 21.4% in CRC patients and 29.8% in control group. An association study showed a significant association of two target polymorphisms with CRC, according to the dominant genetic model with OR = 0.577, 95% CI = [0.343 to 0.972], p = 0.038 and OR = 0.547, 95% CI = [0.328 to 0.911], p = 0.02, respectively. Conclusion: In this study, we found, for the first time, a potential protective effect of two SNPs in the IL-12RB1 gene, namely rs401502 and rs11575934, in sporadic colorectal cancer in Tunisians.
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Affiliation(s)
- Refka Jelassi
- Laboratory of Medical Parasitology, Biotechnology, and Biomolecules, Pasteur Institute of Tunis, University Tunis El Manar, Tunis, Tunisia
- Faculty of Sciences Bizerte, University of Carthage, Tunis, Tunisia
| | - Sabrine Dhouioui
- Laboratory Microorganisms and Active Biomolecules, Faculty of Sciences of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Hamza Ben Salah
- Laboratory of Medical Parasitology, Biotechnology, and Biomolecules, Pasteur Institute of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Nasreddine Saidi
- Laboratory of Medical Parasitology, Biotechnology, and Biomolecules, Pasteur Institute of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Nabiha Mzoughi
- Laboratory of Medical Parasitology, Biotechnology, and Biomolecules, Pasteur Institute of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Radhia Ammi
- External Consultants Service Pasteur Institute of Tunis, Tunis, Tunisia
| | - Aida Bouratbine
- Laboratory of Medical Parasitology, Biotechnology, and Biomolecules, Pasteur Institute of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Karim Aoun
- Laboratory of Medical Parasitology, Biotechnology, and Biomolecules, Pasteur Institute of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Ines Zidi
- Laboratory Microorganisms and Active Biomolecules, Faculty of Sciences of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Hanen Chelbi
- Laboratory of Medical Parasitology, Biotechnology, and Biomolecules, Pasteur Institute of Tunis, University Tunis El Manar, Tunis, Tunisia
- *Correspondence: Hanen Chelbi,
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Hajian S, Mazdeh M, Nouri F, Roshanaei G, Soleimani M. Association study of promoter polymorphisms of interferon alpha and beta receptor subunit 1 (IFNAR1) gene and therapeutic response to interferon-beta in patients with multiple sclerosis. Mol Biol Rep 2021; 48:6007-6013. [PMID: 34328599 DOI: 10.1007/s11033-021-06602-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 07/25/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Multiple sclerosis (MS) is an autoimmune disease described by inflammatory neuronal losses and resultant failures. The disease could abate by interferon-beta (IFN-β) therapy in MS patients. However, the drug response productivity is changeable between patients, and the accurate mechanism of action of the IFN-β is not obvious. The present study aims to investigate the role of interferon alpha and beta receptor subunit 1 (IFNAR1) promoter polymorphisms towards IFN-β treatment response in MS patients. METHODS The subjects herein were separated into either responder (n = 57) or non-responder (n = 43) groups according to IFN-β treatment and Expanded Disability Status Scale score. The Sanger sequencing method was used for genotyping. RESULTS Among nearly 64 Single Nucleotide Polymorphisms (SNPs), we found a significant association between the rs2850015 polymorphism and the responders and non-responders to IFN-β treatment in the recessive model of inheritance (P = 0.02). The results also revealed a significant change in the two groups of responders and non-responders to the treatment for rs36158718 as an Insertion/Deletion (INDEL) (P = 0.02). Moreover, bioinformatic analyses predicted a remarkable role for both rs2850015 and rs36158718 related to the changes of binding affinity of transcription factors and alterations in their alleles. CONCLUSION The present study results suggest that the genetic heterogeneity in the promoter region of IFNAR1 could affect the response to IFN-β. However, further studies with a larger sample size are needed to further demonstrate this relationship.
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Affiliation(s)
- Samin Hajian
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Mehrdokht Mazdeh
- Department of Neurology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Fatemeh Nouri
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Ghodratollah Roshanaei
- Department of Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Meysam Soleimani
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran.
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