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Moawadh MS, Mir R, Tayeb FJ, Asim O, Ullah MF. Molecular Evaluation of the Impact of Polymorphic Variants in Apoptotic ( Bcl-2/Bax) and Proinflammatory Cytokine ( TNF-α/IL-8) Genes on the Susceptibility and Progression of Myeloproliferative Neoplasms: A Case-Control Biomarker Study. Curr Issues Mol Biol 2023; 45:3933-3952. [PMID: 37232720 DOI: 10.3390/cimb45050251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 05/27/2023] Open
Abstract
The regulation of apoptosis (the programmed cell death) is dependent on the crucial involvement of BCL2 and BAX. The Bax-248G>A and Bcl-2-938 C>A polymorphic variations in the promoter sequences of the Bax and Bcl-2 gene have been recently associated with low Bax expression, progression to advanced stages, treatment resistance, and shortened overall survival rate in some hematological malignancies, including chronic myeloid leukemia (CML) and other myeloproliferative neoplasms. Chronic inflammation has been linked to various stages of carcinogenesis wherein pro-inflammatory cytokines play diverse roles in influencing cancer microenvironment leading to cell invasion and cancer progression. Cytokines such as TNF-α and IL-8 have been implicated in cancer growth in both solid and hematological malignancies with studies showing their elevated levels in patients. Genomic approaches have in recent years provided significant knowledge with the regard to the association of certain SNPs (single nucleotide polymerphisms) either in a gene or its promoter that can influence its expression, with the risk and susceptibility to human diseases including cancer. This study has investigated the consequences of promoter SNPs in apoptosis genes Bax-248G>A (rs4645878)/Bcl-2-938C>A (rs2279115) and pro-inflammatory cytokines TNF-α rs1800629 G>A/IL-8 rs4073 T>A on the risk and susceptibility towards hematological cancers. The study design has 235 individuals both male and female enrolled as subjects that had 113 cases of MPDs (myeloproliferative disorders) and 122 healthy individuals as controls. The genotyping studies were conducted through ARMS PCR (amplification-refractory mutation system PCR). The Bcl-2-938 C>A polymorphism showed up in 22% of patients in the study, while it was observed in only 10% of normal controls. This difference in genotype and allele frequency between the two groups was significant (p = 0.025). Similarly, the Bax-248G>A polymorphism was detected in 6.48% of the patients and 4.54% of the normal controls, with a significant difference in genotype and allele frequency between the groups (p = 0.048). The results suggest that the Bcl-2-938 C>A variant is linked to an elevated risk of MPDs in the codominant, dominant, and recessive inheritance models. Moreover, the study indicated allele A as risk allele which can significantly increase the risk of MPDs unlike the C allele. In case of Bax gene covariants, these were associated with an increased risk of MPDs in the codominant inheritance model and dominant inheritance model. It was found that the allele A significantly enhanced the risk of MPDs unlike the G allele. The frequencies of IL-8 rs4073 T>A in patients was found to be TT (16.39%), AT (36.88%) and AA (46.72%), compared to controls who were more likely to have frequencies of TT (39.34%), AT (37.70%) and AA (22.95%) as such, respectively. There was a notable overrepresentation of the AA genotype and GG homozygotes among patients compared to controls in TNF-α polymorphic variants, with 6.55% of patients having the AA genotype and 84% of patients being GG homozygotes, compared to 1.63% and 69%, respectively in controls. The data from the current study provide partial but important evidence that polymorphisms in apoptotic genes Bcl-2-938C>A and Bax-248G>A and pro-inflammatory cytokines IL-8 rs4073 T>A and TNF-α G>A may help predict the clinical outcomes of patients and determine the significance of such polymorphic variations in the risk of myeloproliferative diseases and their role as prognostic markers in disease management using a case-control study approach.
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Affiliation(s)
- Mamdoh S Moawadh
- Department of Medical Laboratory Technology (FAMS), University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Rashid Mir
- Department of Medical Laboratory Technology (FAMS), University of Tabuk, Tabuk 71491, Saudi Arabia
- Division of Molecular Biology, Prince Fahd Chair for Biomedical Research, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Faris J Tayeb
- Department of Medical Laboratory Technology (FAMS), University of Tabuk, Tabuk 71491, Saudi Arabia
- Community College, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Orooba Asim
- Division of Molecular Biology, Prince Fahd Chair for Biomedical Research, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Mohammad Fahad Ullah
- Department of Medical Laboratory Technology (FAMS), University of Tabuk, Tabuk 71491, Saudi Arabia
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Abdalhabib EK, Algarni A, Saboor M, Alanazi F, Ibrahim IK, Alfeel AH, Alanazi AM, Alanazi AM, Alruwaili AM, Alanazi MH, Alshaikh NA. Association of TNF-α rs1800629 with Adult Acute B-Cell Lymphoblastic Leukemia. Genes (Basel) 2022; 13:genes13071237. [PMID: 35886021 PMCID: PMC9320751 DOI: 10.3390/genes13071237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 12/03/2022] Open
Abstract
TNF−α influences lymphomagenesis by upregulating proinflammatory and antiapoptotic pathways. In this study, we evaluated the frequency of TNF−α rs1800629 (−308 G>A) polymorphism in newly diagnosed adult patients with acute lymphoblastic leukemia (ALL) and its correlation with age at diagnosis, gender and subtype of ALL. In this case control study, a total of 330 individuals were recruited, including 165 newly diagnosed adult patients with ALL, from the Radiation and Isotope Center in Khartoum (RICK) and 165 healthy normal controls. TNF−α rs1800629 polymorphism was tested through allele-specific polymerase chain reaction (PCR) assay. The frequency of the rs1800629 GA genotype was high (70.9% vs. 60%, OR = 1.84) in the patient group as compared to healthy controls, whereas GG and AA genotypes did not exhibit any statistically significant difference between controls and patients. Based on subtype, GG and GA rs1800629 genotypes showed increased risk of B-ALL (OR 0.46 and 2.12, respectively), whereas rs1800629 GG, GA and AA genotypes did not show any disease association with T-ALL (p > 0.05). Age at diagnosis and gender did not exhibit any association of rs1800629 with ALL in the patient group. In conclusion, rs1800629 is associated with high risk of adult B-ALL, with an insignificant effect of age at diagnosis and gender.
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Affiliation(s)
- Ezeldine K. Abdalhabib
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakakah P.O. Box 42421, Saudi Arabia; (E.K.A.); (F.A.)
| | - Abdulrahman Algarni
- Department of Medical Laboratory Technology, College of Applied Medical Sciences, Northern Border University, Arar P.O. Box 91431, Saudi Arabia;
| | - Muhammad Saboor
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan P.O. Box 45142, Saudi Arabia;
- Medical Research Center, Jazan University, Jazan P.O. Box 45142, Saudi Arabia
- Correspondence: (M.S.); (A.H.A.); Tel.: +966-54-495-9029 (M.S.); +971-52-540-1334 (A.H.A.)
| | - Fehaid Alanazi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakakah P.O. Box 42421, Saudi Arabia; (E.K.A.); (F.A.)
| | - Ibrahim K. Ibrahim
- Department of Hematology, Faculty of Medical Laboratory Sciences, Al Neelain University, Khartoum P.O. Box 12702, Sudan;
| | - Ayman H. Alfeel
- Department of Medical Laboratory Sciences, College of Health Sciences, Gulf Medical University, Ajman P.O. Box 4184, United Arab Emirates
- Correspondence: (M.S.); (A.H.A.); Tel.: +966-54-495-9029 (M.S.); +971-52-540-1334 (A.H.A.)
| | - Abdullah M. Alanazi
- Gurayyat Health Affair, Regional Laboratory and Central Blood Bank, Ministry of Health, Gurayyat P.O. Box 77413, Saudi Arabia; (A.M.A.); (A.M.A.); (A.M.A.); (M.H.A.)
| | - Abdulmajeed M. Alanazi
- Gurayyat Health Affair, Regional Laboratory and Central Blood Bank, Ministry of Health, Gurayyat P.O. Box 77413, Saudi Arabia; (A.M.A.); (A.M.A.); (A.M.A.); (M.H.A.)
| | - Abdulaziz M. Alruwaili
- Gurayyat Health Affair, Regional Laboratory and Central Blood Bank, Ministry of Health, Gurayyat P.O. Box 77413, Saudi Arabia; (A.M.A.); (A.M.A.); (A.M.A.); (M.H.A.)
| | - Muath H. Alanazi
- Gurayyat Health Affair, Regional Laboratory and Central Blood Bank, Ministry of Health, Gurayyat P.O. Box 77413, Saudi Arabia; (A.M.A.); (A.M.A.); (A.M.A.); (M.H.A.)
| | - Nahla A. Alshaikh
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan P.O. Box 45142, Saudi Arabia;
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