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Zahidin MA, Mohd Noor NH, Johan MF, Abdullah AD, Zulkafli Z, Edinur HA. Mannose-binding lectin gene sequence data in Kelantan population. Sci Data 2024; 11:435. [PMID: 38688916 PMCID: PMC11061297 DOI: 10.1038/s41597-024-03274-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 04/17/2024] [Indexed: 05/02/2024] Open
Abstract
The human mannose-binding lectin (MBL) gene encodes a polymorphic protein that plays a crucial role in the innate immune response. Human MBL deficiency is associated with immunodeficiencies, and its variants have been linked to autoimmune and infectious diseases. Despite this significance, gene studies concerning MBL sequencing are uncommon in Malaysia. Therefore, we aimed to preliminary described the human MBL sequencing dataset based on the Kelantan population. Blood samples were collected from 30 unrelated individuals and underwent DNA extraction, genotyping, and sequencing. The sequencing data generated 886 bp, which were deposited in GenBank (ON619541-ON619546). Allelic variants were identified and translated into six MBL haplotypes: HYPA, HYPB, LYPB, LXPB, HXPA, and LXPA. An evolutionary tree was constructed using the haplotype sequences. These findings contribute to the expansion of MBL information within the country, providing a valuable baseline for future research exploring the association between the gene and targeted diseases.
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Affiliation(s)
- Muhamad Aidil Zahidin
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia (Health Campus), 16150, Kubang Kerian, Kelantan, Malaysia
| | - Noor Haslina Mohd Noor
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia (Health Campus), 16150, Kubang Kerian, Kelantan, Malaysia.
- Transfusion Medicine Unit, Hospital Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia.
| | - Muhammad Farid Johan
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia (Health Campus), 16150, Kubang Kerian, Kelantan, Malaysia
| | - Abu Dzarr Abdullah
- Department of Internal Medicine, School of Medical Sciences, Universiti Sains Malaysia (Health Campus), 16150, Kubang Kerian, Kelantan, Malaysia
| | - Zefarina Zulkafli
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia (Health Campus), 16150, Kubang Kerian, Kelantan, Malaysia
- Transfusion Medicine Unit, Hospital Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Hisham Atan Edinur
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia (Health Campus), 16150, Kubang Kerian, Kelantan, Malaysia
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Sharma S, Kumari B, Ali A, Patel PK, Sharma AK, Nair R, Singh PK, Hajela K. Mannose-binding lectin gene 2 variant DD (rs 5030737) is associated with susceptibility to COVID-19 infection in the urban population of Patna City (India). Mol Genet Genomics 2023; 298:955-963. [PMID: 37204457 PMCID: PMC10196310 DOI: 10.1007/s00438-023-02030-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 05/03/2023] [Indexed: 05/20/2023]
Abstract
The study aimed to measure plasma levels of Mannose-Binding Lectin (MBL) and MBL-associated serine protease-2 (MASP-2) and their polymorphisms in COVID-19 patients and controls to detect association. As MBL is a protein of immunological importance, it may contribute to the first-line host defence against SARS-CoV-2. MBL initiates the lectin pathway of complement activation with help of MASP-1 and MASP-2. Hence, appropriate serum levels of MBL and MASPs are crucial in getting protection from the disease. The polymorphisms of MBL and MASP genes affect their plasma levels, impacting their protective function and thus may manifest susceptibility, extreme variability in the clinical symptoms and progression of COVID-19 disease. The present study was conducted to find plasma levels and genetic variations in MBL and MASP-2 in COVID-19 patients and controls using PCR-RFLP and ELISA, respectively.The present study was conducted to find plasma levels and genetic variations in MBL and MASP-2 in COVID-19 patients and controls using PCR-RFLP and ELISA, respectively. Our results indicate that median serum levels of MBL and MASP-2 were significantly low in diseased cases but attained normal levels on recovery. Only genotype DD was found to be associated with COVID-19 cases in the urban population of Patna city.
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Affiliation(s)
- Sadhana Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, Patna, 801507, Bihar, India.
| | - Bandana Kumari
- Department of Biochemistry, All India Institute of Medical Sciences, Patna, 801507, Bihar, India
| | - Asgar Ali
- Department of Biochemistry, All India Institute of Medical Sciences, Patna, 801507, Bihar, India
| | - Pankaj Kumar Patel
- Department of Botany, SBN Government PG College, Barwani, 451551, MP, India
| | - Abhay Kumar Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, Patna, 801507, Bihar, India
| | - Rathish Nair
- College of Nursing, All India Institute of Medical Sciences, Patna, 801507, Bihar, India
| | | | - Krishnan Hajela
- School of Life Sciences, Devi Ahilya Vishwavidyalaya, Indore, 452014, MP, India
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Baioumy SA, Fouad SH, Abdalgeleel SA, Baiomy AA, Sallam DE, Taha SI. Mannose-binding lectin serum levels and (Gly54asp) gene polymorphism in recurrent aphthous stomatitis: A case-control study. Int J Immunopathol Pharmacol 2021; 35:20587384211064454. [PMID: 34907799 PMCID: PMC8689634 DOI: 10.1177/20587384211064454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Objectives: Dysregulation of the immune response appears to play a significant role in recurrent aphthous stomatitis (RAS) development. The main objective of this case–control study is to investigate the blood levels of mannose-binding lectin (MBL) and the frequency of the MBL2 gene (gly54asp) polymorphism in RAS patients, including 40 RAS patients and 40 healthy controls. Methods: Serum MBL levels were determined by ELISA, while the PCR-restriction fragment length polymorphism was used in MBL2 genotyping. Results: The median serum MBL level was significantly lower in the RAS group than in the control group (975 ng/mL (545–1320) vs. 1760 ng/mL (1254–2134); p≤ 0.001). The MBL levels were significantly lower in the BB genotype, whereas they were significantly higher in the wild type AA with a median of 525 and 1340 ng/mL, respectively (p =0.005). The B allele was expressed in significantly higher percentages of RAS patients than in controls. There was no significant association between MBL serum levels (p=0.685) or MBL2 codon 54 genotypes (p=0.382) with the type of ulcers. Conclusion: There was an association between low MBL serum levels and the variant allele B of the MBL2 (gly54asp) gene, and the susceptibility to RAS. As a result, potential novel therapeutic options for RAS patients with MBL deficiency should be investigated.
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Affiliation(s)
- Shereen A Baioumy
- Department of Microbiology and Immunology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Shaimaa H Fouad
- Department of Internal Medicine / Allergy and Clinical Immunology, 68792Ain Shams University, Cairo, Egypt
| | - Shaimaa A Abdalgeleel
- Department of Biostatistics and Epidemiology, National Cancer Institute, 63526Cairo University, Cairo, Egypt
| | - Ahmed A Baiomy
- Department of Fixed prosthodontics, Egyptian Russian University, Badr City, Egypt
| | - Dina E Sallam
- Department of Pediatrics & Pediatric Nephrology, Faculty of Medicine, 68792Ain-Shams University, Cairo, Egypt
| | - Sara I Taha
- Department of Clinical Pathology/ Immunology, Faculty of Medicine, 68792Ain Shams University, Cairo, Egypt
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Polymorphisms of Mannose-binding Lectin and Toll-like Receptors 2, 3, 4, 7 and 8 and the Risk of Respiratory Infections and Acute Otitis Media in Children. Pediatr Infect Dis J 2017; 36:e114-e122. [PMID: 28403045 DOI: 10.1097/inf.0000000000001479] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Mannose-binding lectin (MBL) and toll-like receptors (TLRs) are important components of the innate immune system. We assessed the susceptibility of children with genetic variants in these factors to respiratory infections, rhinovirus infections and acute otitis media. METHODS In a prospective cohort study, blood samples from 381 Finnish children were analyzed for polymorphisms in MBL2 at codons 52, 54 and 57, TLR2 Arg753Gln, TLR3 Leu412Phe, TLR4 Asp299Gly, TLR7 Gln11Leu and TLR8 Leu651Leu. Children were followed up for respiratory infections until 24 months of age with daily diaries. Polymerase chain reaction and antigen tests were used for detection of respiratory viruses from nasal swabs. RESULTS Children with MBL variant genotype had a mean of 59 days with symptoms of respiratory infection per year, compared with 49 days in those with wild-type (P = 0.01). TLR8 polymorphisms were associated with an increased risk and TLR7 polymorphisms with a decreased risk of recurrent rhinovirus infections (P = 0.02 for both). TLR2 polymorphisms were associated with recurrent acute otitis media (P = 0.02). MBL polymorphisms were associated with an increased and TLR7 polymorphisms with a decreased risk of rhinovirus-associated acute otitis media (P = 0.03 and P = 0.006, respectively). CONCLUSIONS Genetic polymorphisms in MBL and TLRs promote susceptibility to or protection against respiratory infections. In addition to environmental factors, genetic variations may explain why some children are more prone to respiratory infections.
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Gelemanović A, Dobberpuhl K, Krakar G, Patarčić I, Kolčić I, Polašek O. Host genetics and susceptibility to congenital and childhood cytomegalovirus infection: a systematic review. Croat Med J 2017; 57:321-30. [PMID: 27586547 PMCID: PMC5048223 DOI: 10.3325/cmj.2016.57.321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aim To summarize available evidence on the role of host genetics in the susceptibility to congenital and childhood cytomegalovirus (CMV) infections by conducting a systematic review of published studies. Methods We searched online databases (PubMed, Web of Science, Scopus and HuGe Navigator) for relevant studies with well-defined inclusion and exclusion criteria and assessed the risk of bias using novel Confounding-Selection-Information bias score (CSI). Results 5105 studies were initially identified, but only 5 met all the inclusion criteria and were analyzed in detail. Polymorphisms of the toll-like receptors (TLRs) and mannose-binding lectin (MBL) genes were shown to have an impact on the CMV infection in infants. Polymorphisms of the TLR2 (rs3804100, rs1898830), TLR4 (rs4986791), and TLR9 (rs352140) were shown to have a role in congenital CMV infection. Low MBL levels were associated with CMV infection in Chinese individuals, a finding that was not replicated in Caucasians. The overall credibility of evidence was weak. Conclusions Based on currently available very limited amount of evidence, it is uncertain whether congenital and childhood CMV infections are under host genetic control. Additional primary studies are needed with more specific research hypotheses that will enable gradual understanding of specific mechanisms of the CMV pathogenesis. More genetic studies in the future will facilitate better understanding of host susceptibility and likely enable novel preventative and curative measures.
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Affiliation(s)
| | | | | | | | | | - Ozren Polašek
- Ozren Polašek, School of Medicine, University of Split, Šoltanska 2, 21000 Split, Croatia,
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Liukkonen A, He Q, Gürsoy UK, Pussinen PJ, Gröndahl-Yli-Hannuksela K, Liukkonen J, Sorsa T, Suominen AL, Huumonen S, Könönen E. Mannose-binding lectin gene polymorphism in relation to periodontal infection. J Periodontal Res 2016; 52:540-545. [PMID: 27624657 DOI: 10.1111/jre.12420] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVE Mannose-binding lectin (MBL) plays an important role in innate immunity. MBL deficiency is usually caused by mutations in exon 1 of the MBL structural gene (MBL2). Our aim was to investigate MBL2 polymorphisms and their relation to salivary levels of periodontal inflammatory/tissue destruction markers and two major periodontitis-associated bacteria. MATERIAL AND METHODS Salivary samples from 222 subjects were available for genotyping by pyrosequencing. The subjects between 40 and 60 years of age and having a minimum of 20 teeth were divided into three periodontal groups: 80 had generalized periodontitis, 65 had localized periodontitis and 77 were periodontitis-free. A comparison between their MBL2 genotypes and salivary detection rates and levels of Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis as well as interleukin -1β, matrix metalloproteinase -8, and tissue inhibitor of matrix metalloproteinase (TIMP)-1 was performed. RESULTS The frequencies of the MBL2 wild-type (A/A), heterozygote variants (A/O) and homozygote variants (O/O) were 69.4%, 26.6% and 4%, respectively. In A. actinomycetemcomitans-positive subjects having homozygote or heterozygote MBL2 variants, the salivary concentrations of IL-1β (p = 0.010) were elevated and those of TIMP-1 (p = 0.001) were decreased. In addition their matrix metalloproteinase -8/TIMP-1 ratio was higher (p < 0.001) and they had more pocket teeth (p = 0.012) than subjects negative for A. actinomycetemcomitans. CONCLUSION Our findings indicate that the carriage of A. actinomycetemcomitans may facilitate extended periodontal inflammation and destruction in subjects with a variant form of human MBL2.
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Affiliation(s)
- A Liukkonen
- Institute of Dentistry, University of Turku, Turku, Finland
| | - Q He
- Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland
| | - U K Gürsoy
- Institute of Dentistry, University of Turku, Turku, Finland
| | - P J Pussinen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | | | - J Liukkonen
- Institute of Dentistry, University of Turku, Turku, Finland
| | - T Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - A L Suominen
- Institute of Dentistry, University of Eastern Finland, Kuopio, Finland.,Unit of Living Conditions, Health and Wellbeing, Department of Environmental Health in Environmental Epidemiology Unit, National Institute for Health and Welfare (THL), Kuopio, Finland.,Department of Oral and Maxillofacial Surgery, Kuopio University Hospital, Kuopio, Finland
| | - S Huumonen
- Institute of Dentistry, University of Turku, Turku, Finland
| | - E Könönen
- Institute of Dentistry, University of Turku, Turku, Finland.,Welfare Division, Oral Health Care, City of Turku, Turku, Finland
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Atan O, Kucukcelebi A, Atik T, Ozkınay F. Mannose binding lectin codon 54 polymorphism and susceptibility to recurrent respiratory tract infections in children: A meta-analysis. Int J Pediatr Otorhinolaryngol 2016; 81:41-5. [PMID: 26810288 DOI: 10.1016/j.ijporl.2015.11.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 11/24/2015] [Accepted: 11/25/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND There have been studies focused on mannose binding lectin (MBL) polymorphism and susceptibility to recurrent respiratory tract infections (RRTI) with inconclusive results. This present study is a meta-analysis of possible MBL and RRTI association in children. METHODS A literature search was performed using Medline and PubMed and abstracts were reviewed for relevance. Any study was considered to be eligible for inclusion if it met the following criteria: the MBL gene polymorphism at codon 54 was determined, the outcome was recurrent respiratory tract infection in children and there were at least two comparison groups. The odds ratios(OR) of the genetic MBL polymorphisms were combined and calculated, and the forest plots of the OR value distributions were drawn. Chi-squared testing of heterogeneity was done (p<0.001). RESULTS Five eligible studies were included in the study. There has been heterogeneity between the studies (p=0.001). Our results did not show any association between MBL genotypes AA, BB, AB, alleles A and B and RRTI. CONCLUSIONS Our meta-analysis of accessible, published data has demonstrated no statistically significant association between MBL2 genotype and recurrent respiratory tract infection in children. Summary of the article's main point Here are discrepancies regarding the importance of MBL polymorphism and its impact on recurrent respiratory tract infections. Our meta analysis did not find statistically significant association between MBL codon 54 polymorphism and recurrent respiratory tract infection in children.
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Affiliation(s)
- Ozlem Atan
- Acıbadem University, Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, Turkey.
| | - Ahmet Kucukcelebi
- Acıbadem Bodrum Hospital, Division of Aesthetic, Plastic and Reconstructive Surgery, Muğla, Turkey
| | - Tahir Atik
- Ege University Faculty of Medicine, Department of Pediatrics, Pediatric Genetic Subdivision, Izmir, Turkey
| | - Ferda Ozkınay
- Ege University Faculty of Medicine, Department of Pediatrics, Pediatric Genetic Subdivision, Izmir, Turkey
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Zehsaz F, Farhangi N, Legge M. Mannose-binding lectin 2 gene polymorphism and susceptibility to upper respiratory tract infection among endurance athletes. Eur J Sport Sci 2014; 14:586-91. [PMID: 24593307 DOI: 10.1080/17461391.2014.893022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The aim of this study was to investigate the influence of mannose-binding lectin 2 (MBL2)-exon-1 gene polymorphisms on upper respiratory tract infection (URTI) incidence among endurance athletes. To this end, 100 healthy elite male athletes participating in the study were classified as either healthy or prone to frequent URTI. Blood samples, DNA isolation, multiplex polymerase chain reaction (PCR) and conventional PCR-RFLP were performed. Genomic DNA was extracted from peripheral leukocytes of whole blood samples using the QIAmp DNA Blood Mini Kit. For comparison of the distribution of genotypes between two groups and for estimating odds ratios (OR) for URTI susceptibility in relation to the MBL2-exon-1 polymorphism, Pearson's chi-square and logistic regression method were used, respectively. The MBL2-exon-1 genotype distribution differed between athletes with URTI and healthy athletes (χ(2) = 7.81, p = 0.02). The AO and AO + OO genotypes of MBL2 were observed at a greater frequency in the illness-prone group compared with the healthy group (34.04% vs. 11.32%). In conclusion, findings from this study have identified a potential role of genetic variation in influencing the risk for URTI in athletic populations and single-nucleotide polymorphisms (SNPs) in the MBL2-exon-1 genes were associated with an altered risk profile. These measures may have a predictive value in the identification of individuals who are more likely to experience recurrent infections when exposed to high physical stress in the areas of athletic endeavour.
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Affiliation(s)
- Farzad Zehsaz
- a Department of Physical Education & Sport Sciences , College of Humanities and Educational Sciences, Tabriz Branch, Islamic Azad University , Tabriz , Iran
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Antony JS, Ojurongbe O, van Tong H, Ouf EA, Engleitner T, Akindele AA, Sina-Agbaje OR, Adeyeba AO, Kremsner PG, Velavan TP. Mannose-binding lectin and susceptibility to schistosomiasis. J Infect Dis 2013; 207:1675-83. [PMID: 23448728 PMCID: PMC7107301 DOI: 10.1093/infdis/jit081] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Human ficolin 2 (encoded by FCN2) and mannose-binding lectin (encoded by MBL2) bind to specific pathogen-associated molecular patterns, activate the complement lectin cascade in a similar manner, and are associated with several infectious diseases. Our recently published study established certain FCN2 promoter variants and ficolin-2 serum levels as protective factors against schistosomiasis. METHODS We used the Nigerian cohort from our recently published study, which included 163 Schistosoma haematobium-infected individuals and 183 matched healthy subjects, and investigated whether MBL deficiency and MBL2 polymorphisms are associated with schistosomiasis. RESULTS MBL serum levels were significantly higher in controls and were associated with protection (P < .0001). The -550H minor allele was significantly associated with protection (P = .03), and the heterozygous genotypes -550HL were observed to confer protection (P = .03). The MBL2*HYPA haplotype was significantly associated with protection (P = .03), with significantly higher serum MBL levels in controls (P = .00073). The heterozygous 6-bp deletion in the promoter was observed to be a susceptibility factor in schistosomiasis (P = .03). CONCLUSIONS In agreement with findings from our recently published study, the findings reported here support the observation that MBL is also associated with protection in schistosomiasis.
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Affiliation(s)
- Justin S Antony
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
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