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Sokkar MF, Mosaad RM, Khalil M, Kamal L. MBL2 gene variants and susceptibility to meningitis in Egyptian patients. Gene 2023; 872:147442. [PMID: 37121343 DOI: 10.1016/j.gene.2023.147442] [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: 02/02/2023] [Revised: 04/12/2023] [Accepted: 04/18/2023] [Indexed: 05/02/2023]
Abstract
BACKGROUND Meningitis is inflammation of the membranes enclosing the brain and spinal cord. It is a fatal disease with severe morbidity and mortality. Mannose binding lectin (MBL) encoded by MBL2 gene activates complement system through lectin pathway in innate immunity to defense against the infections. OBJECTIVE the current study aimed to investigate the promoter and exon 1 variants of MBL2 gene among Egyptian patients having meningitis to explore their role in disease susceptibility. PATIENTS AND METHODS This case-control study, included 53 patients and 50 sex and age matched controls. MBL2 genotyping was done using Sanger sequencing. RESULTS The frequency of one promoter (c.-290C>G) and four in exon 1 (c.161G>A, c.170G>A, c.154C>T and c.132C>T) as well as another one located in its 5'utranslated part (c.-66C>T) variants were estimated. The incidence of the four individual exonic variants was not significantly different between cases and healthy individuals (all P> 0.05). The promoter variant, c.-290C>G was found in all examined patients (84.9% of the patients in homozygote state and 15.1% of patients in heterozygous state) with a highly significant variance in the prevalence of this variant between cases and control group (p=0.0001). Additionally, UTR variant (c.-66C>T) was also significantly higher in patients than controls (P=0.033).In comparison with clinical outcome, it was found that c.170G>A variant named C allele was associated with favorable outcome in the studied patients (P=0.025). CONCLUSION The results obtained showed that the Promoter (c.-290C>G) and UTR (c.-66 C>T) variants of MBL2 gene may be potential risk factors for disease susceptibility in Egyptian cases with meningitis. Our results also proposed that c.170G>A (C allele and CC genotype) could affect the severity and play a protective role in these patients. The other genetic variants of MBL2 gene, including c.132C>T, c.161G>A (A>B), and c.154C>T (A>D) that were investigated, did not show any association with susceptibility or severity of meningitis.
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Affiliation(s)
- Mona F Sokkar
- Molecular Genetics and Enzymology department, Human Genetics and Genome Research Institute (HGGR), National Research Centre (NRC), Cairo, Egypt
| | - Rehab M Mosaad
- Infection disease department, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt.
| | - Mahmoud Khalil
- Infection disease department, National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
| | - Lamyaa Kamal
- Clinical and chemical pathology department, Elsahel Teaching Hospital, Cairo, Egypt
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Sokołowska A, Świerzko AS, Szala-Poździej A, Augustynowicz-Kopeć E, Kozińska M, Niemiec T, Błachnio M, Borkowska-Tatar D, Jensenius JC, Thiel S, Dziadek J, Cedzyński M. Selected factors of the innate immunity in Polish patients suffering from pulmonary tuberculosis. Immunobiology 2020; 225:151905. [PMID: 32007302 DOI: 10.1016/j.imbio.2020.151905] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 02/01/2023]
Abstract
We conducted a prospective study of 453 Polish patients suffering from pulmonary tuberculosis and 267 healthy controls. Selected polymorphisms of the genes encoding for collectins, ficolins and MBL-associated serine protease 2 were investigated as were serum concentrations of mannose-binding lectin, surfactant protein D, ficolin-1 and ficolin-3. The number of MBL2 gene exon 1 variant allele carriers was significantly higher in patients, compared with controls. The homozygosity for SFTPA2 +26 C > A SNP variant allele occurred less commonly within TB, while homozygosity for the FCN1 -542 G > A major allele was less frequent within the control group. Two patients were found MASP-2-deficient. Serum concentrations of MBL, SP-D and ficolin-1 were higher amongst patients while the converse was found for ficolin-3. Ficolin-1 had high specificity to differentiate between individuals with tuberculosis and healthy persons and therefore may be considered potential disease marker.
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Affiliation(s)
- Anna Sokołowska
- Laboratory of Immunobiology of Infections, Institute of Medical Biology, Polish Academy of Sciences, Lodowa 106, 93-232, Łódź, Poland
| | - Anna S Świerzko
- Laboratory of Immunobiology of Infections, Institute of Medical Biology, Polish Academy of Sciences, Lodowa 106, 93-232, Łódź, Poland
| | - Agnieszka Szala-Poździej
- Laboratory of Immunobiology of Infections, Institute of Medical Biology, Polish Academy of Sciences, Lodowa 106, 93-232, Łódź, Poland
| | | | - Monika Kozińska
- Institute of Tuberculosis and Lung Diseases, Plocka 26, 01-138, Warsaw, Poland
| | - Tomasz Niemiec
- The Voivodeship Hospital of Lung Diseases in Jaroszowiec, Kolejowa 1a, 32-312, Jaroszowiec, Poland
| | - Maria Błachnio
- Masovian Center of Lung Diseases and Tuberculosis Treatment, Narutowicza 80, 05-400, Otwock, Poland
| | | | - Jens C Jensenius
- Department of Biomedicine, Aarhus University, Høegh-Guldbergs Gade 10, 8000, Aarhus, Denmark
| | - Steffen Thiel
- Department of Biomedicine, Aarhus University, Høegh-Guldbergs Gade 10, 8000, Aarhus, Denmark
| | - Jarosław Dziadek
- Laboratory of Mycobacterium Genetics and Physiology, Institute of Medical Biology, Polish Academy of Sciences, Lodowa 106, 93-232, Łódź, Poland
| | - Maciej Cedzyński
- Laboratory of Immunobiology of Infections, Institute of Medical Biology, Polish Academy of Sciences, Lodowa 106, 93-232, Łódź, Poland.
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Tong X, Wan Q, Li Z, Liu S, Huang J, Wu M, Fan H. Association between the mannose-binding lectin (MBL)-2 gene variants and serum MBL with pulmonary tuberculosis: An update meta-analysis and systematic review. Microb Pathog 2019; 132:374-380. [PMID: 30999018 DOI: 10.1016/j.micpath.2019.04.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/21/2019] [Accepted: 04/12/2019] [Indexed: 02/05/2023]
Abstract
In recent years, many studies have demonstrated that the MBL-2 gene polymorphisms may be associated with pulmonary tuberculosis (PTB) susceptibility. Moreover, some studies have shown that serum MBL levels were influenced by the MBL-2 gene polymorphisms and that it plays an important role in tuberculosis infection. However, the results of these studies were inconsistent and underpowered. The current meta-analysis and systematic review aimed to evaluate the association between the MBL-2 gene polymorphisms and serum MBL levels with PTB. Finally, 30 eligible articles were included in the study. The overall results indicated that the MBL-2 rs1800450 (54 A/B) and rs5030737 (52 A/D) polymorphisms were risk factors for PTB, but the MBL-2 rs1800451 (57 A/C) and rs7095891 (+4 P/Q) polymorphisms as protective factors against PTB. No associations were found in the other three polymorphisms (exon 1, rs7096206 (-221 X/Y), and rs11003125 (-550 H/L) of the MBL-2 gene. In addition, we could not detect any significant differences between haplotypes among PTB patients and healthy controls. More important, the meta-analysis results indicated that the serum MBL levels in patients with PTB were significantly lower than those in healthy controls (SMD = 0.43, 95% CI = 0.33-0.52). This study suggested that the MBL-2 gene polymorphisms may be involved in the pathogenesis of PTB, and serum MBL may be a biomarker for the diagnosis of PTB. More rigorous research is needed in the future to confirm these findings further.
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Affiliation(s)
- Xiang Tong
- Department of Respiratory Medicine and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, 610041, China
| | - Qunfang Wan
- Department of Respiratory Medicine and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, 610041, China
| | - Zhenzhen Li
- Health Management Center, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, 610041, China
| | - Sitong Liu
- Department of Respiratory Medicine and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, 610041, China
| | - Jizhen Huang
- Department of Respiratory Medicine and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, 610041, China
| | - Man Wu
- Department of Respiratory Medicine and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, 610041, China
| | - Hong Fan
- Department of Respiratory Medicine and Critical Care Medicine, West China Hospital/West China School of Medicine, Sichuan University, Chengdu, 610041, China.
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Wu YJ, Yang X, Chen TD, Zhang ZX, You YZ, Fan ZD. Genetic polymorphisms of exon 1 of MBL2 contribute to tuberculosis risk especially in Asian populations: an updated meta-analysis of 26 studies. Infect Drug Resist 2018; 11:1237-1248. [PMID: 30154670 PMCID: PMC6108403 DOI: 10.2147/idr.s168465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background Evidence suggests that genetic variations of exon 1 of mannose-binding lectin 2 (MBL2) may contribute to tuberculosis (TB) risk. Many studies have investigated the association between MBL2 exon 1 polymorphisms (rs1800450, rs1800451, and rs5030737) and TB risk, but yielded inconclusive results. Method We conducted this meta-analysis of 26 eligible case–control studies that included 7952 cases and 9328 controls to identify the strength of association. Odds ratio (OR) and 95% CI were used to evaluate the strength of association. Statistical analyses were performed by using STATA 12.1. Results We found a statistically significant correlation between MBL2 exon 1 polymorphisms and increased TB risk among three models: allele model (O vs A: OR =1.18, 95% CI: 1.01–1.38, Pheterogeneity<0.0001, I2=85.8%), homozygote comparison (OO vs AA: OR =1.49, 95%CI: 1.02–2.18, Pheterogeneity<0.0001, I2=79.1%), dominant model (AO/OO vs AA: OR =1.20, 95% CI: 1.01–1.43, Pheterogeneity<0.0001, I2=83.5%), especially in studies based on Asian populations among five models: allele model (O vs A: OR =1.29, 95% CI: 1.11–1.51, Pheterogeneity<0.0001, I2=66.0%), homozygote comparison (OO vs AA: OR =1.67, 95% CI: 1.09–2.55, Pheterogeneity=0.008, I2=54.2%), heterozygote comparison (AO vs AA: OR =1.26, 95% CI: 1.05–1.50, Pheterogeneity=0.001, I2=62.9%), dominant model (AO/OO vs. AA: OR =1.31, 95% CI: 1.10–1.56, Pheterogeneity=0.001, I2=64.2%), and recessive model (OO vs AO/AA: OR =1.50, 95% CI: 1.01–2.22, Pheterogeneity=0.023, I2=48.0%). Meta-regression results revealed that source of controls (p=0.009), but not ethnicity (p=0.687), genotyping method (p=0.231), and sample size (p=0.451) contributed to the source of heterogeneity. Conclusion This meta-analysis suggests that MBL2 exon 1 polymorphisms may contribute to TB risk, especially in Asian populations.
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Affiliation(s)
- Yu-Jiao Wu
- Department of Pharmacy, The Third People's Hospital, Changzhou, China,
| | - Xin Yang
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, China,
| | - Ting-di Chen
- Department of Science and Education, The Third People's Hospital, Changzhou, China
| | - Zhi-Xin Zhang
- Department of Pulmonary Tuberculosis, The Third People's Hospital, Changzhou, China
| | - Yi-Zhong You
- Department of Pharmacy, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Zheng-da Fan
- Department of Pharmacy, The Third People's Hospital, Changzhou, China,
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da Silva Constantino T, de Lima ELS, de Brito LRPB, Silva JL, Coêlho MRCD, Muniz MTC, Silva PCV, Domingues ALC. Association Between Polymorphisms of the Mannose-Binding Lectin and Severity of Periportal Fibrosis in Schistosomiasis, in the Northeast of Brazil. Genet Test Mol Biomarkers 2017; 21:571-576. [PMID: 28783370 DOI: 10.1089/gtmb.2017.0051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
AIMS Mannose-binding lectin (MBL) is a protein synthesized by the liver and its immune response is associated with the development of liver fibrosis. We hypothesized that the polymorphisms in the Exon 1 region (52, 54, 57) and promoter regions (-550 H/L, -221 X/Y) of the MBL2 gene were associated with the severity of periportal fibrosis (PPF), and that these polymorphisms affect the MBL serum levels. MATERIALS AND METHODS In this cross-sectional study we genotyped these polymorphisms within the MBL2 gene in 229 Brazilian subjects infected with Schistosoma mansoni, with different patterns of PPF. RESULTS There was no association between the polymorphisms and haplotypes of the MBL2 gene and the advanced PPF pattern. The MBL levels were higher in individuals with advanced fibrosis. There was risk association among high-expression haplotypes of MBL, and a protection association between the A/O Exon 1 genotype and elevated MBL serum levels. CONCLUSIONS Our results suggest that polymorphism of Exon 1 and MBL haplotypes could potentially be used to predict the severity of advanced PPF in the Brazilian population.
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Affiliation(s)
- Taynan da Silva Constantino
- 1 Centro Acadêmico de Vitória, Universidade Federal de Pernambuco (UFPE) , Vitória de Santo Antão, Pernambuco, Brazil
| | - Elker Lene Santos de Lima
- 2 Laboratório de Biologia Molecular, Centro de Oncohematologia Pediátrica, Hospital Universitário Oswaldo Cruz , Universidade de Pernambuco, Recife, Pernambuco, Brazil
- 3 Instituto de Ciências Biológicas , Universidade de Pernambuco, Recife, Pernambuco, Brazil
| | - Lidiane Régia Pereira Braga de Brito
- 2 Laboratório de Biologia Molecular, Centro de Oncohematologia Pediátrica, Hospital Universitário Oswaldo Cruz , Universidade de Pernambuco, Recife, Pernambuco, Brazil
| | - Jamile Luciana Silva
- 1 Centro Acadêmico de Vitória, Universidade Federal de Pernambuco (UFPE) , Vitória de Santo Antão, Pernambuco, Brazil
| | - Maria Rosângela Cunha Duarte Coêlho
- 4 Setor de Virologia do Laboratório de Imunopatologia Keizo-Asami (LIKA), Universidade Federal de Pernambuco (UFPE) , Recife, Pernambuco, Brazil
- 5 Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco (UFPE) , Recife, Pernambuco, Brazil
| | - Maria Tereza Cartaxo Muniz
- 2 Laboratório de Biologia Molecular, Centro de Oncohematologia Pediátrica, Hospital Universitário Oswaldo Cruz , Universidade de Pernambuco, Recife, Pernambuco, Brazil
- 3 Instituto de Ciências Biológicas , Universidade de Pernambuco, Recife, Pernambuco, Brazil
- 6 Faculdade de Ciências Médicas, Universidade de Pernambuco , Recife, Pernambuco, Brazil
| | - Paula Carolina Valença Silva
- 1 Centro Acadêmico de Vitória, Universidade Federal de Pernambuco (UFPE) , Vitória de Santo Antão, Pernambuco, Brazil
- 2 Laboratório de Biologia Molecular, Centro de Oncohematologia Pediátrica, Hospital Universitário Oswaldo Cruz , Universidade de Pernambuco, Recife, Pernambuco, Brazil
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Losada López I, García Gasalla M, González Moreno J, Serrano A, Domínguez Valdés FJ, Milà J, Payeras A. Mannose binding lectin polymorphisms in systemic lupus erythematosus in Spain. EUR J INFLAMM 2016. [DOI: 10.1177/1721727x16646385] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Low mannose binding lectin (MBL) producer genotypes have been considered as a systemic lupus erythematosus (SLE) risk factor. The aim of this study was to explore whether polymorphisms in the MBL gene are associated with susceptibility to SLE and disease-specific clinical manifestations or with disease severity in SLE patients in Son Llàtzer Hospital. MBL2 exon 1 and promoter polymorphisms were genotyped and MBL plasma levels were quantified by ELISA in 39 SLE cases and in 96 healthy controls. High MBL producer genotypes HYPA and LXPA were the most frequent haplotypes (65 and 62 participants, respectively). LYQC/HYPD, LXPA/LYQC and LYPB/HYPD were only found in SLE, and all of them were related to severe MBL deficiency. SLE patients showed a trend towards more severe MBL deficiency (MBL <100 ng/mL) compared to controls (10 [25.6%] and 11 [11.46%] respectively, P = 0.07). The wild-type genotype was more frequent in controls compared to SLE. The trend towards more severe MBL deficiency in SLE and the fact that some of the low-MBL producer genotypes were only found in SLE patients, suggest that low MBL levels or MBL2 variant could be a risk factor for the development of SLE.
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Affiliation(s)
| | | | | | - Araceli Serrano
- Internal Medicine, Son Llàtzer Hospital, Balearic Islands, Spain
| | | | - Joan Milà
- Immunology, Son Espases Hospital, Balearic Islands, Spain
| | - Antoni Payeras
- Internal Medicine, Son Llàtzer Hospital, Balearic Islands, Spain
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Mandal J, Malla B, Steffensen R, Costa L, Egli A, Trendelenburg M, Blasi F, Kostikas K, Welte T, Torres A, Louis R, Boersma W, Milenkovic B, Aerts J, Rohde GGU, Lacoma A, Rentsch K, Roth M, Tamm M, Stolz D. Mannose-binding lectin protein and its association to clinical outcomes in COPD: a longitudinal study. Respir Res 2015; 16:150. [PMID: 26684757 PMCID: PMC4750539 DOI: 10.1186/s12931-015-0306-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 11/26/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Functional deficiency of mannose-binding lectin (MBL) may contribute to the pathogenesis of chronic obstructive pulmonary disease. We hypothesized that specific MBL2 gene polymorphisms and circulating MBL protein levels are associated with clinically relevant outcomes in the Predicting Outcome using systemic Markers In Severe Exacerbations of COPD PROMISE-COPD cohort. METHODS We followed 277 patients with stable COPD GOLD stage II-IV COPD over a median period of 733 days (IQR 641-767) taking survival as the primary outcome parameter. Patients were dichotomized as frequent (≥ 2 AECOPD/year) or infrequent exacerbators. Serum MBL levels and single nucleotide polymorphisms of the MBL2 gene were assessed at baseline. RESULTS The MBL2-HYPD haplotype was significantly more prevalent in frequent exacerbators (OR: 3.33; 95% CI, 1.24-7.14, p = 0.01). The median serum MBL concentration was similar in frequent (607 ng/ml, [IQR; 363.0-896.0 ng/ml]) and infrequent exacerbators (615 ng/ml, [IQR; 371.0-942.0 ng/ml]). Serum MBL was not associated with lung function characteristics or bacterial colonization in sputum. However, high serum MBL at stable state was associated with better survival compared to low MBL (p = 0.046, log rank test). CONCLUSIONS In COPD, the HYPD haplotype of MBL2 gene is associated with frequent exacerbations and high serum MBL is linked to increased survival. The PROMISE-COPD study was registered at www.controlled-trials.com under the identifier ISRCTN99586989.
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Affiliation(s)
- Jyotshna Mandal
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital Basel, Petersgraben, 44031, Basel, Switzerland
| | - Bijaya Malla
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital Basel, Petersgraben, 44031, Basel, Switzerland
| | - Rudi Steffensen
- Department of Clinical Immunology, Aalborg University Hospital, Aalborg, Denmark
| | - Luigi Costa
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital Basel, Petersgraben, 44031, Basel, Switzerland
| | - Adrian Egli
- Infection Disease Department, University Hospital Basel, Basel, Switzerland
| | - Marten Trendelenburg
- Department of Biomedicine and Division of Internal Medicine, University Hospital Basel, Basel, Switzerland
| | - Francesco Blasi
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, IRCCS Fondazione Cà Granda Policlinico, Milan, Italy
| | | | | | | | | | - Wim Boersma
- Medisch Centrum Alkmaar, Alkmaar, Netherlands
| | - Branislava Milenkovic
- Faculty of Medicine, University of Belgrade; Clinic for Pulmonary Diseases, Belgrade, Serbia
| | | | - Gernot G U Rohde
- Maastricht University Medical Center, Maastricht, The Netherlands
| | - Alicia Lacoma
- Department of Microbiology, Hospital Universitari Germans Trias i Pujol, CIBER Enfermedades Respiratorias, Badalona, Spain
| | - Katharina Rentsch
- Department of Laboratorial Medicine, University Hospital Basel, Basel, Switzerland
| | - Michael Roth
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital Basel, Petersgraben, 44031, Basel, Switzerland
| | - Michael Tamm
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital Basel, Petersgraben, 44031, Basel, Switzerland
| | - Daiana Stolz
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital Basel, Petersgraben, 44031, Basel, Switzerland.
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Frequency Distribution of Mannose Binding Lectin-2 and Vitamin D Receptor Gene Variants: Putative Markers for Tuberculosis. GENETICS RESEARCH INTERNATIONAL 2015; 2015:264120. [PMID: 26693353 PMCID: PMC4674623 DOI: 10.1155/2015/264120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 11/08/2015] [Indexed: 11/30/2022]
Abstract
Genetic polymorphism in Mannose Binding Lectin-2 (MBL-2) and Vitamin D Receptor (VDR) is known to influence the susceptibility to tuberculosis. The objective of the present study was to evaluate the frequency distribution of the MBL-2 promoter and structural polymorphism (−550 H/L, −221 Y/X, and +4 P/Q; R52C, G54D, and G57F) and VDR polymorphism (FokI, BsmI, TaqI, and ApaI) in healthy individuals of Indian population and comparative analysis with the global population. In Indian population, the frequency of VDR mutant alleles “f” for FokI, “b” for BsmI, “t” for TaqI, and “a” for ApaI was 25%, 54%, 30%, and 61%, respectively. The allelic frequency of MBL-2 promoter polymorphism −550 H/L was H versus L: 32% versus 68%, −221 Y/X was Y versus X: 68% versus 32%, and +4 P/Q was P versus Q: 78% versus 22%. Mutant allelic frequencies of the MBL-2 exon 1 D, B, and C allele were 6%, 11%, and 3%, respectively. Comparative analysis with global populations showed a noteworthy difference for MBL-2 and VDR polymorphism frequency distribution, indicating the ethnic variability of Indians. The study signifies the differential distribution of susceptibility genes in Indian population, which can influence the understanding of the pathophysiology of tuberculosis in Indian population.
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Khalilullah SA, Harapan H, Hasan NA, Winardi W, Ichsan I, Mulyadi M. Host genome polymorphisms and tuberculosis infection: What we have to say? EGYPTIAN JOURNAL OF CHEST DISEASES AND TUBERCULOSIS 2013; 63:173-185. [PMID: 26966339 DOI: 10.1016/j.ejcdt.2013.12.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Several epidemiology studies suggest that host genetic factors play important roles in susceptibility, protection and progression of tuberculosis infection. Here we have reviewed the implications of some genetic polymorphisms in pathways related to tuberculosis susceptibility, severity and development. Large case-control studies examining single-nucleotide polymorphisms (SNPs) in genes have been performed in tuberculosis patients in some countries. Polymorphisms in natural resistance-associated macrophage protein 1 (NRAMP1), toll-like receptor 2 (TLR2), interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), interleukin-1 receptor antagonist (IL-1RA), IL-10, vitamin D receptor (VDR), dendritic cell-specific ICAM-3-grabbing non-integrin (DC-SIGN), monocyte chemoattractant protein-1 (MCP-1), nucleotide oligomerization binding domain 2 (NOD2), interferon-gamma (IFN-γ), inducible nitric oxide synthase (iNOS), mannose-binding lectin (MBL) and surfactant proteins A (SP-A) have been reviewed. These genes have been variably associated with tuberculosis infection and there is strong evidence indicating that host genetic factors play critical roles in tuberculosis susceptibility, severity and development.
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Affiliation(s)
| | - Harapan Harapan
- Medical Research Unit, School of Medicine Syiah Kuala University, Banda Aceh, Indonesia; Tropical Disease Center, School of Medicine Syiah Kuala University, Banda Aceh, Indonesia
| | - Nabeeh A Hasan
- Research Affiliate, Centre for Genes, Environment and Health, National Jewish Health, Denver, CO, USA; Computational Bioscience Program, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | - Wira Winardi
- Medical Research Unit, School of Medicine Syiah Kuala University, Banda Aceh, Indonesia; Graduate Institute of Medical Science, Taipei Medical University, Taipei, Taiwan
| | - Ichsan Ichsan
- Medical Research Unit, School of Medicine Syiah Kuala University, Banda Aceh, Indonesia; Tropical Disease Center, School of Medicine Syiah Kuala University, Banda Aceh, Indonesia; Institute of Medical Microbiology and National Reference Center for Systemic Mycosis, University Medical Center Goettingen, Goettingen, Germany
| | - Mulyadi Mulyadi
- Pulmonology Department, School of Medicine, Syiah Kuala University, Banda Aceh, Indonesia
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