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Jayashankar CA, Prakash B, Prashanthi SVSR, Bhat N, Joshi A, Narayanaswamy G. A case of lepromatous leprosy in a background of chronic hepatitis B infection. J Family Med Prim Care 2024; 13:1559-1562. [PMID: 38827665 PMCID: PMC11142012 DOI: 10.4103/jfmpc.jfmpc_589_23] [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] [Received: 04/03/2023] [Revised: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 06/04/2024] Open
Abstract
Leprosy is a chronic granulomatous infection that primarily affects developing and underdeveloped countries. Co-infection with the hepatitis B virus can complicate its natural course by altering the host immune system response and thereby the disease outcomes. Early detection and treatment of the disease is thus imperative for preventing debilitating deformities. Several studies have shown positive viral markers for human immunodeficiency virus (HIV) and hepatitis B in patients with leprosy. However, in the Indian subcontinent, we have limited evidence highlighting this correlation. We present a case of a 42-year-old male with chronic hepatitis B infection presenting with new-onset lepromatous leprosy. The patient was successfully managed with a multibacillary multidrug regimen. In patients with hepatitis B co-infection, clinicians must be vigilant about the higher risk of complications and poorer patient outcomes. Extensive longitudinal studies assessing the correlation between leprosy and hepatitis B in India can help tailor future guidelines for management.
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Affiliation(s)
- C. A. Jayashankar
- Department of Internal Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, Karnataka, India
| | - Bhanu Prakash
- Department of Dermatology, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, Karnataka, India
| | | | - Nuthan Bhat
- Department of Internal Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, Karnataka, India
| | - Amey Joshi
- Department of Internal Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, Karnataka, India
| | - Girish Narayanaswamy
- Department of Microbiology, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, Karnataka, India
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2
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CD4+ Cytotoxic T Cells Involved in the Development of EBV-Associated Diseases. Pathogens 2022; 11:pathogens11080831. [PMID: 35894054 PMCID: PMC9330826 DOI: 10.3390/pathogens11080831] [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] [Received: 06/27/2022] [Revised: 07/17/2022] [Accepted: 07/22/2022] [Indexed: 11/17/2022] Open
Abstract
Activated cytotoxic CD4 T cells (HLA-DR+) play an important role in the control of EBV infection, especially in cells with latency I (EBNA-1). One of the evasion mechanisms of these latency cells is generated by gp42, which, via peripherally binding to the β1 domain of the β chain of MHC class II (HLA-DQ, -DR, and -DP) of the infected B lymphocyte, can block/alter the HLA class II/T-cell receptor (TCR) interaction, and confer an increased level of susceptibility towards the development of EBV-associated autoimmune diseases or cancer in genetically predisposed individuals (HLA-DRB1* and DQB1* alleles). The main developments predisposing the factors of these diseases are: EBV infection; HLA class II risk alleles; sex; and tissue that is infiltrated with EBV-latent cells, forming ectopic lymphoid structures. Therefore, there is a need to identify treatments for eliminating cells with EBV latency, because the current treatments (e.g., antivirals and rituximab) are ineffective.
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3
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Wang X, Liu Y. Offense and Defense in Granulomatous Inflammation Disease. Front Cell Infect Microbiol 2022; 12:797749. [PMID: 35846773 PMCID: PMC9277142 DOI: 10.3389/fcimb.2022.797749] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
Granulomatous inflammation (GI) diseases are a group of chronic inflammation disorders characterized by focal collections of multinucleated giant cells, epithelioid cells and macrophages, with or without necrosis. GI diseases are closely related to microbes, especially virulent intracellular bacterial infections are important factors in the progression of these diseases. They employ a range of strategies to survive the stresses imposed upon them and persist in host cells, becoming the initiator of the fighting. Microbe-host communication is essential to maintain functions of a healthy host, so defense capacity of hosts is another influence factor, which is thought to combine to determine the result of the fighting. With the development of gene research technology, many human genetic loci were identified to be involved in GI diseases susceptibility, providing more insights into and knowledge about GI diseases. The current review aims to provide an update on the most recent progress in the identification and characterization of bacteria in GI diseases in a variety of organ systems and clinical conditions, and examine the invasion and escape mechanisms of pathogens that have been demonstrated in previous studies, we also review the existing data on the predictive factors of the host, mainly on genetic findings. These strategies may improve our understanding of the mechanisms underlying GI diseases, and open new avenues for the study of the associated conditions in the future.
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Affiliation(s)
- Xinwen Wang
- Shaanxi Clinical Research Center for Oral Diseases, National Clinical Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Department of Oral Medicine, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Yuan Liu
- Shaanxi International Joint Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Department of Histology and Pathology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
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4
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Gutiérrez-Bautista JF, Martinez-Chamorro A, Rodriguez-Nicolas A, Rosales-Castillo A, Jiménez P, Anderson P, López-Ruz MÁ, López-Nevot MÁ, Ruiz-Cabello F. Major Histocompatibility Complex Class I Chain-Related α (MICA) STR Polymorphisms in COVID-19 Patients. Int J Mol Sci 2022; 23:ijms23136979. [PMID: 35805975 PMCID: PMC9266713 DOI: 10.3390/ijms23136979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 02/01/2023] Open
Abstract
The SARS-CoV-2 disease presents different phenotypes of severity. Comorbidities, age, and being overweight are well established risk factors for severe disease. However, innate immunity plays a key role in the early control of viral infections and may condition the gravity of COVID-19. Natural Killer (NK) cells are part of innate immunity and are important in the control of virus infection by killing infected cells and participating in the development of adaptive immunity. Therefore, we studied the short tandem repeat (STR) transmembrane polymorphisms of the major histocompatibility complex class I chain-related A (MICA), an NKG2D ligand that induces activation of NK cells, among other cells. We compared the alleles and genotypes of MICA in COVID-19 patients versus healthy controls and analyzed their relation to disease severity. Our results indicate that the MICA*A9 allele is related to infection as well as to symptomatic disease but not to severe disease. The MICA*A9 allele may be a risk factor for SARS-CoV-2 infection and symptomatic disease.
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Affiliation(s)
- Juan Francisco Gutiérrez-Bautista
- Servicio de Análisis Clínicos e Inmunología, Hospital Universitario Virgen de las Nieves, 18012 Granada, Spain; (J.F.G.-B.); (A.R.-N.); (P.J.); (P.A.)
- Programa de Doctorado en Biomedicina, University of Granada, 18016 Granada, Spain
- Departamento Bioquímica, Biología Molecular e Inmunología III, University of Granada, 18071 Granada, Spain
| | | | - Antonio Rodriguez-Nicolas
- Servicio de Análisis Clínicos e Inmunología, Hospital Universitario Virgen de las Nieves, 18012 Granada, Spain; (J.F.G.-B.); (A.R.-N.); (P.J.); (P.A.)
| | - Antonio Rosales-Castillo
- Servicio de Medicina Interna, Hospital Universitario Virgen de las Nieves, 18012 Granada, Spain;
| | - Pilar Jiménez
- Servicio de Análisis Clínicos e Inmunología, Hospital Universitario Virgen de las Nieves, 18012 Granada, Spain; (J.F.G.-B.); (A.R.-N.); (P.J.); (P.A.)
| | - Per Anderson
- Servicio de Análisis Clínicos e Inmunología, Hospital Universitario Virgen de las Nieves, 18012 Granada, Spain; (J.F.G.-B.); (A.R.-N.); (P.J.); (P.A.)
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012 Granada, Spain
| | - Miguel Ángel López-Ruz
- Departamento de Medicina, University of Granada, 18071 Granada, Spain;
- Servicio de Enfermedades Infecciosas, Hospital Universitario Virgen de las Nieves, 18012 Granada, Spain
| | - Miguel Ángel López-Nevot
- Servicio de Análisis Clínicos e Inmunología, Hospital Universitario Virgen de las Nieves, 18012 Granada, Spain; (J.F.G.-B.); (A.R.-N.); (P.J.); (P.A.)
- Departamento Bioquímica, Biología Molecular e Inmunología III, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012 Granada, Spain
- Correspondence: (M.Á.L.-N.); (F.R.-C.)
| | - Francisco Ruiz-Cabello
- Servicio de Análisis Clínicos e Inmunología, Hospital Universitario Virgen de las Nieves, 18012 Granada, Spain; (J.F.G.-B.); (A.R.-N.); (P.J.); (P.A.)
- Departamento Bioquímica, Biología Molecular e Inmunología III, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012 Granada, Spain
- Correspondence: (M.Á.L.-N.); (F.R.-C.)
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5
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Human Leukocyte Antigen (HLA) System: Genetics and Association with Bacterial and Viral Infections. J Immunol Res 2022; 2022:9710376. [PMID: 35664353 PMCID: PMC9162874 DOI: 10.1155/2022/9710376] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 05/08/2022] [Indexed: 12/19/2022] Open
Abstract
The human leukocyte antigen (HLA) system is one of the most crucial host factors influencing disease progression in bacterial and viral infections. This review provides the basic concepts of the structure and function of HLA molecules in humans. Here, we highlight the main findings on the associations between HLA class I and class II alleles and susceptibility to important infectious diseases such as tuberculosis, leprosy, melioidosis, Staphylococcus aureus infection, human immunodeficiency virus infection, coronavirus disease 2019, hepatitis B, and hepatitis C in populations worldwide. Finally, we discuss challenges in HLA typing to predict disease outcomes in clinical implementation. Evaluation of the impact of HLA variants on the outcome of bacterial and viral infections would improve the understanding of pathogenesis and identify those at risk from infectious diseases in distinct populations and may improve the individual treatment.
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6
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Zhang R, Cao L, Chen W, Ge H, Hu X, Li Z, Wang Y, Fan W, Yong L, Yu Y, Mao Y, Zhen Q, Liu H, Zhang F, Sun L. Fine-Mapping of the Major Histocompatibility Complex Region Linked to Leprosy in Northern China. Front Genet 2022; 12:768259. [PMID: 34976012 PMCID: PMC8716717 DOI: 10.3389/fgene.2021.768259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/29/2021] [Indexed: 01/31/2023] Open
Abstract
Background: Leprosy is a chronic infectious skin and neurological disease, and genetic background is considered to be one of the major factors of risk. The major histocompatibility complex (MHC) region not only affects susceptibility to leprosy but also its development and outcome. Given the complex traits of the MHC region, variants and the potential mechanism by which HLA influences leprosy development need to be further explored. Methods: We extracted previous genome-wide association study data from the Northern Han Chinese population to perform HLA fine-mapping. Using the 1,000 Genome Project Phase 3 dataset as the reference panel, single-nucleotide polymorphisms (SNP), insertion and deletion (INDEL) and copy number variant (CNV) imputation were carried out. HLA classical alleles and amino acids in the MHC region were imputed using the HAN-MHC database. Further stepwise regression analysis was conducted to analyze independent signals of variants related to leprosy. Results: We identified four independent variants: esv3608598, rs7754498, rs3130781 and rs144388449. Among them, esv3608598 is a CNV and the first HLA CNV associated with leprosy risk. SNP annotation using RegulomeDB, HaploReg, and rVarBase showed that three SNPs are likely to affect the pathogenesis of leprosy. Conclusion: In summary, this is the first study to assess the association between HLA CNV and leprosy susceptibility in a Northern Han Chinese population. By fine mapping of the MHC region in this population, our findings provide evidence for the contribution of HLA to leprosy susceptibility.
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Affiliation(s)
- Ruixue Zhang
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Lu Cao
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Weiwei Chen
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Huiyao Ge
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Xia Hu
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Zhuo Li
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Yirui Wang
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Wencheng Fan
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Liang Yong
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Yafen Yu
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Yiwen Mao
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Qi Zhen
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
| | - Hong Liu
- Shandong Provincial Hospital for Skin Diseases and Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Furen Zhang
- Shandong Provincial Hospital for Skin Diseases and Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Liangdan Sun
- Department of Dermatology, No. 1 Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Anhui Provincial Institute of Translational Medicine, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
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Boldt ABW, Oliveira-Toré CDF, Kretzschmar GC, Weinschutz Mendes H, Stinghen ST, Andrade FA, Bumiller-Bini V, Gonçalves LB, Braga ACDM, Stahlke EVRS, Velavan TP, Thiel S, de Messias-Reason IJT. Hepatitis B Virus Infection Among Leprosy Patients: A Case for Polymorphisms Compromising Activation of the Lectin Pathway and Complement Receptors. Front Immunol 2021; 11:574457. [PMID: 33643280 PMCID: PMC7904891 DOI: 10.3389/fimmu.2020.574457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 12/24/2020] [Indexed: 01/05/2023] Open
Abstract
Thousands of leprosy patients not only suffer from physical deformities, but also either have or have had hepatitis B virus (HBV) coinfection. Polymorphisms of the complement system modulate susceptibility to leprosy, but genetic susceptibility to past or present HBV infection is unknown. We used sequencing and multiplex sequence-specific PCR to genotype 72 polymorphisms of seven genes (MBL2, FCN1, FCN2, FCN3, MASP1, MASP2, C3) encoding components of the lectin pathway, and two genes encoding complement receptors (CR1, VSIG4) in 190 patients, of which 74 were positive for HBsAg and/or anti-HBc (HBV+, 93.2% with a resolved infection) and 116 lepromatous patients, and 408 HBV-blood donors. In addition, we tested for levels of proteins of the lectin pathway. We found no difference between serum concentrations of mannan-binding lectin (MBL), MBL-associated serine proteins (MASP-1, MASP-2, MASP-3, MAp44), ficolin-3 (FCN-3), soluble complement receptor 1 (sCR1) and MBL mediated C4 activation, measured by ELISA or TRIFMA in up to 167 HBV+ and HBV- patients. Haplotypes lowering protein levels or encoding dysfunctional proteins increased susceptibility to HBV infection: MBL2*LYQC (OR = 3.4, p = 0.02), MASP1*AC_CC (OR = 4.0, p = 0.015) and MASP2*1C2-l (OR = 5.4, p = 0.03). Conversely, FCN1*3C2 haplotype, associated with higher gene expression, was protective (OR = 0.56, P = 0.033). Other haplotypes associated with HBV susceptibility were: MASP2*2B1-i (OR = 19.25, P = 0.003), CR1*3A (OR = 2.65, P = 0.011) and VSIG4*TGGRCG (OR = 12.55, P = 0.014). Some polymorphisms in ficolin genes associated with lower protein levels increased susceptibility to leprosy/HBV infection: FCN*1 (OR = 1.66, P = 0.029), FCN2*GGGCAC (OR = 6.73, P = 0.008), and FCN3*del_del_C (OR = 12.54, P = 0.037), and to lepromatous disease/HBV infection: FCN2*TA (OR = 2.5, P = 0.009), whereas FCN2*MAG was associated with increased FCN-2 expression and resistance against coinfection (OR = 0.29, P = 0.026). These associations were independent of demographic factors and did not increase susceptibility to leprosy per se, except MASP2*1C2-l. Associations for FCN2, FCN3, MASP1, MASP2, and VSIG4 variants were also independent of each other. In conclusion, polymorphisms compromising activation of the lectin pathway of complement increase susceptibility to HBV infection, with ficolin polymorphisms playing a major role in modulating the susceptibility among leprosy patients.
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Affiliation(s)
- Angelica Beate Winter Boldt
- Laboratory of Human Molecular Genetics, Postgraduate Program in Genetics, Department of Genetics, Federal University of Paraná, Curitiba, Brazil
- Laboratory of Molecular Immunopathology, Postgraduate Program in Internal Medicine and Health Sciences, Department of Clinical Pathology, Hospital de Clínicas, Federal University of Paraná, Curitiba, Brazil
| | - Camila de Freitas Oliveira-Toré
- Laboratory of Molecular Immunopathology, Postgraduate Program in Internal Medicine and Health Sciences, Department of Clinical Pathology, Hospital de Clínicas, Federal University of Paraná, Curitiba, Brazil
| | - Gabriela Canalli Kretzschmar
- Laboratory of Human Molecular Genetics, Postgraduate Program in Genetics, Department of Genetics, Federal University of Paraná, Curitiba, Brazil
| | - Hellen Weinschutz Mendes
- Laboratory of Molecular Immunopathology, Postgraduate Program in Internal Medicine and Health Sciences, Department of Clinical Pathology, Hospital de Clínicas, Federal University of Paraná, Curitiba, Brazil
| | - Sérvio Túlio Stinghen
- Laboratory of Molecular Immunopathology, Postgraduate Program in Internal Medicine and Health Sciences, Department of Clinical Pathology, Hospital de Clínicas, Federal University of Paraná, Curitiba, Brazil
| | - Fabiana Antunes Andrade
- Laboratory of Molecular Immunopathology, Postgraduate Program in Internal Medicine and Health Sciences, Department of Clinical Pathology, Hospital de Clínicas, Federal University of Paraná, Curitiba, Brazil
| | - Valéria Bumiller-Bini
- Laboratory of Human Molecular Genetics, Postgraduate Program in Genetics, Department of Genetics, Federal University of Paraná, Curitiba, Brazil
| | - Letícia Boslooper Gonçalves
- Laboratory of Molecular Immunopathology, Postgraduate Program in Internal Medicine and Health Sciences, Department of Clinical Pathology, Hospital de Clínicas, Federal University of Paraná, Curitiba, Brazil
| | - Anna Carolina de Moraes Braga
- Laboratory of Molecular Immunopathology, Postgraduate Program in Internal Medicine and Health Sciences, Department of Clinical Pathology, Hospital de Clínicas, Federal University of Paraná, Curitiba, Brazil
| | | | - Thirumalaisamy P. Velavan
- Institute of Tropical Medicine, Universitätsklinikum Tübingen, Tübingen, Germany
- Vietnamese-German Center for Medical Research, Hanoi, Vietnam
- Faculty of Medicine, Duy Tan University, Da Nang, Vietnam
| | - Steffen Thiel
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Iara José Taborda de Messias-Reason
- Laboratory of Molecular Immunopathology, Postgraduate Program in Internal Medicine and Health Sciences, Department of Clinical Pathology, Hospital de Clínicas, Federal University of Paraná, Curitiba, Brazil
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HLA-DPB1 and HLA-C alleles are associated with leprosy in a Brazilian population. Hum Immunol 2020; 82:11-18. [PMID: 33189423 DOI: 10.1016/j.humimm.2020.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/21/2020] [Accepted: 10/21/2020] [Indexed: 11/21/2022]
Abstract
Despite intense efforts, the number of new cases of leprosy has remained significantly high over the past 20 years. Host genetic background is strongly linked to the pathogenesis of this disease, which is caused by Mycobacterium leprae (M. leprae), and there is a consensus that the most significant genetic association with leprosy is attributed to the major histocompatibility complex (MHC). Here, we investigated the association of human leukocyte antigen (HLA) class I and II genes with leprosy in a Brazilian population encompassing 826 individuals from a hyperendemic area of Brazil; HLA typing of class I (-A, -B, -C) and class II (-DRB1, -DQA1, -DQB1, -DPA1, and -DPB1) loci was conducted. Initially, the associations were tested using the chi-square test, with p-values adjusted using the false discovery rate (FDR) method. Next, statistically significant signals of the associations were submitted to logistic regression analyses to adjust for sex and molecular ancestry data. The results showed that HLA-C*08, -DPB1*04, and -DPB1*18 were associated with protective effects, while HLA-C*12 and -DPB1*105 were associated with susceptibility to leprosy. Thus, our findings reveal new associations between leprosy and the HLA-DPB1 locus and confirm previous associations between the HLA-C locus and leprosy.
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9
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Jarduli LR, Alves HV, de Souza VH, Uaska Sartori PV, Fava VM, de Souza FC, Marcos EVC, Pereira AC, Dias-Baptista IMF, Virmond MDCL, de Moraes MO, Mira MT, Visentainer JEL. Association of MICA and HLA-B alleles with leprosy in two endemic populations in Brazil. Int J Immunogenet 2020; 48:25-35. [PMID: 33151039 DOI: 10.1111/iji.12518] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/06/2020] [Accepted: 10/13/2020] [Indexed: 12/12/2022]
Abstract
Leprosy is a prevalent disease in Brazil, which ranks as the country with the second highest number of cases in the world. The disease manifests in a spectrum of forms, and genetic differences in the host can help to elucidate the immunopathogenesis. For a better understanding of MICA association with leprosy, we performed a case-control and a family-based study in two endemic populations in Brazil. MICA and HLA-B alleles were evaluated in 409 leprosy patients and in 419 healthy contacts by PCR-SSOP-Luminex-based technology. In the familial study, analysis of 46 families was completed by direct sequencing of all exons and 3'/5'untranslated regions, using the Ilumina MiSeq platform. All data were collected between 2006 and 2009. Statistical analysis was performed using the Chi-square or Fisher's exact test together with a multivariate analysis. Family-based association was assessed by transmission disequilibrium test (TDT) software FBAT 2.0.4. We found associations between the haplotype MICA*002-HLA-B*35 with leprosy in both the per se and the multibacillary (MB) forms when compared to healthy contacts. The MICA allele *008 was associated with the clinical forms of paucibacillary (PB). Additionally, MICA*029 was associated with the clinical forms of MB. The association of MICA*029 allele (MICA-A4 variant) with the susceptibility to the MB form suggests this variant for the transmembrane domain of the MICA molecule may be a risk factor for leprosy. Two MICA and nine HLA-B variants were found associated with leprosy per se in the Colônia do Prata population. Linkage disequilibrium analysis revealed perfect linkage disequilibrium (LD) between HLA-B markers rs2596498 and rs2507992, and high LD (R2 = .92) between these and the marker rs2442718. This familial study demonstrates that MICA association signals are not independent from those observed for HLA-B. Our findings contribute the knowledge pool of the immunogenetics of Hansen's disease and reveals a new association of the MICA*029 allele.
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Affiliation(s)
- Luciana Ribeiro Jarduli
- Department of Clinical Analysis and Biomedicine, Graduate Program in Biosciences and Physiopathology, State University of Maringá, Maringá, Brazil
| | - Hugo Vicentin Alves
- Department of Clinical Analysis and Biomedicine, Graduate Program in Biosciences and Physiopathology, State University of Maringá, Maringá, Brazil
| | - Victor Hugo de Souza
- Department of Clinical Analysis and Biomedicine, Graduate Program in Biosciences and Physiopathology, State University of Maringá, Maringá, Brazil
| | | | - Vinícius Medeiros Fava
- Infectious Diseases and Immunity in Global Health (IDIGH) Program at the Research Institute of the McGill University Health Centre (RI-MUHC), Montreal, QC, Canada
| | | | | | | | | | | | | | - Marcelo Távora Mira
- Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
| | - Jeane Eliete Laguila Visentainer
- Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil.,Department of Basic Health Sciences, State University of Maringá, Maringá, Brazil
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10
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The complex pattern of genetic associations of leprosy with HLA class I and class II alleles can be reduced to four amino acid positions. PLoS Pathog 2020; 16:e1008818. [PMID: 32776973 PMCID: PMC7440659 DOI: 10.1371/journal.ppat.1008818] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/20/2020] [Accepted: 07/16/2020] [Indexed: 12/17/2022] Open
Abstract
Leprosy is a chronic disease caused by Mycobacterium leprae. Worldwide, more than 200,000 new patients are affected by leprosy annually, making it the second most common mycobacterial disease after tuberculosis. The MHC/HLA region has been consistently identified as carrying major leprosy susceptibility variants in different populations at times with inconsistent results. To establish the unambiguous molecular identity of classical HLA class I and class II leprosy susceptibility factors, we applied next-generation sequencing to genotype with high-resolution 11 HLA class I and class II genes in 1,155 individuals from a Vietnamese leprosy case-control sample. HLA alleles belonging to an extended haplotype from HLA-A to HLA-DPB1 were associated with risk to leprosy. This susceptibility signal could be reduced to the HLA-DRB1*10:01~ HLA-DQA1*01:05 alleles which were in complete linkage disequilibrium (LD). In addition, haplotypes containing HLA-DRB3~ HLA-DRB1*12:02 and HLA-C*07:06~ HLA-B*44:03~ HLA-DRB1*07:01 alleles were found as two independent protective factors for leprosy. Moreover, we replicated the previously associated HLA-DRB1*15:01 as leprosy risk factor and HLA-DRB1*04:05~HLA-DQA1*03:03 as protective alleles. When we narrowed the analysis to the single amino acid level, we found that the associations of the HLA alleles were largely captured by four independent amino acids at HLA-DRβ1 positions 57 (D) and 13 (F), HLA-B position 63 (E) and HLA-A position 19 (K). Hence, analyses at the amino acid level circumvented the ambiguity caused by strong LD of leprosy susceptibility HLA alleles and identified four distinct leprosy susceptibility factors. Despite global efforts to eliminate leprosy over the past 25 years, more than 200,000 new cases are reported annually, and leprosy still represents a major public health problem in endemic regions. Leprosy presents a strong link with the host genetic background. The most significant susceptibility factors are located in the MHC region and likely involve classical HLA genes. However, the molecular identity of the HLA class I/II-leprosy risk factor(s) has been a matter of longstanding scientific dispute. By conducting a comprehensive sequenced-based analysis of HLA class I and class II genes, we are able to provide a unifying view of the complex relationship of leprosy susceptibility and HLA alleles. In addition, we show that four amino acid polymorphisms in HLA-DRβ1, HLA-B and HLA-A are sufficient to explain the majority of leprosy-HLA associations which opens the way for select protein-HLA peptide binding studies.
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11
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Gzara C, Dallmann-Sauer M, Orlova M, Van Thuc N, Thai VH, Fava VM, Bihoreau MT, Boland A, Abel L, Alcaïs A, Schurr E, Cobat A. Family-based genome-wide association study of leprosy in Vietnam. PLoS Pathog 2020; 16:e1008565. [PMID: 32421744 PMCID: PMC7259797 DOI: 10.1371/journal.ppat.1008565] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/29/2020] [Accepted: 04/20/2020] [Indexed: 12/14/2022] Open
Abstract
Leprosy is a chronic infectious disease of the skin and peripheral nerves with a strong genetic predisposition. Recent genome-wide approaches have identified numerous common variants associated with leprosy, almost all in the Chinese population. We conducted the first family-based genome-wide association study of leprosy in 622 affected offspring from Vietnam, followed by replication in an independent sample of 1181 leprosy cases and 668 controls of the same ethnic origin. The most significant results were observed within the HLA region, in which six SNPs displayed genome-wide significant associations, all of which were replicated in the independent case/control sample. We investigated the signal in the HLA region in more detail, by conducting a multivariate analysis on the case/control sample of 319 GWAS-suggestive HLA hits for which evidence for replication was obtained. We identified three independently associated SNPs, two located in the HLA class I region (rs1265048: OR = 0.69 [0.58-0.80], combined p-value = 5.53x10-11; and rs114598080: OR = 1.47 [1.46-1.48], combined p-value = 8.77x10-13), and one located in the HLA class II region (rs3187964 (OR = 1.67 [1.55-1.80], combined p-value = 8.35x10-16). We also validated two previously identified risk factors for leprosy: the missense variant rs3764147 in the LACC1 gene (OR = 1.52 [1.41-1.63], combined p-value = 5.06x10-14), and the intergenic variant rs6871626 located close to the IL12B gene (OR = 0.73 [0.61-0.84], combined p-value = 6.44x10-8). These results shed new light on the genetic control of leprosy, by dissecting the influence of HLA SNPs, and validating the independent role of two additional variants in a large Vietnamese sample.
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Affiliation(s)
- Chaima Gzara
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM UMR1163, Paris, France
- Université de Paris, Imagine Institute, Paris, France
| | - Monica Dallmann-Sauer
- McGill International TB Centre, Montreal, QC, Canada
- Program in Infectious Diseases and Immunity in Global Health, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Medicine and Human Genetics, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Marianna Orlova
- McGill International TB Centre, Montreal, QC, Canada
- Program in Infectious Diseases and Immunity in Global Health, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Medicine and Human Genetics, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Nguyen Van Thuc
- Hospital for Dermato-Venereology, District, Ho Chi Minh City, Vietnam
| | - Vu Hong Thai
- Hospital for Dermato-Venereology, District, Ho Chi Minh City, Vietnam
| | - Vinicius M. Fava
- McGill International TB Centre, Montreal, QC, Canada
- Program in Infectious Diseases and Immunity in Global Health, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Marie-Thérèse Bihoreau
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine, Evry, France
| | - Anne Boland
- Université Paris-Saclay, CEA, Centre National de Recherche en Génomique Humaine, Evry, France
| | - Laurent Abel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM UMR1163, Paris, France
- Université de Paris, Imagine Institute, Paris, France
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, United States of America
| | - Alexandre Alcaïs
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM UMR1163, Paris, France
- Université de Paris, Imagine Institute, Paris, France
| | - Erwin Schurr
- McGill International TB Centre, Montreal, QC, Canada
- Program in Infectious Diseases and Immunity in Global Health, The Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Medicine and Human Genetics, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Aurélie Cobat
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM UMR1163, Paris, France
- Université de Paris, Imagine Institute, Paris, France
- * E-mail:
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12
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Plasil M, Wijkmark S, Elbers JP, Oppelt J, Burger PA, Horin P. The major histocompatibility complex of Old World camelids: Class I and class I-related genes. HLA 2020; 93:203-215. [PMID: 30828986 DOI: 10.1111/tan.13510] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 01/14/2019] [Accepted: 02/27/2019] [Indexed: 12/30/2022]
Abstract
The genomic structure of the Major Histocompatibility Complex (MHC) region and variation in selected MHC class I related genes in Old World camels, Camelus bactrianus and Camelus dromedaries were studied. The overall genomic organization of the camel MHC region follows a general pattern observed in other mammalian species and individual MHC loci appear to be well conserved. Selected MHC class I genes B-67 and BL3-7 exhibited unexpectedly low variability, even when compared to other camel MHC class I related genes MR1 and MICA. Interspecific SNP and allele sharing are relatively common, and frequencies of heterozygotes are usually low. Such a low variation in a genomic region generally considered as one of the most polymorphic in vertebrate genomes is unusual. Evolutionary relationships between MHC class I related genes and their counterparts from other species seem to be rather complex. Often, they do not follow the general evolutionary history of the species concerned. Close evolutionary relationships of individual MHC class I loci between camels, humans and dogs were observed. Based on the results of this study and on our data on MHC class II genes, the extent and the pattern of polymorphism of the MHC region of Old World camelids differed from most mammalian groups studied so far. Camels thus seem to be an important model for our understanding of the role of genetic diversity in immune functions, especially in the context of unique features of their immunoglobulin and T-cell receptor genes.
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Affiliation(s)
- Martin Plasil
- Department of Animal Genetics, Veterinary and Pharmaceutical University, Brno, Czech Republic.,Ceitec VFU, RG Animal Immunogenomics, Brno, Czech Republic
| | - Sofia Wijkmark
- Department of Animal Genetics, Veterinary and Pharmaceutical University, Brno, Czech Republic
| | - Jean P Elbers
- Research Institute of Wildlife Ecology, Department of Integrative Biology and Evolution, Vienna, Austria
| | - Jan Oppelt
- Ceitec MU, Masaryk University, Brno, Czech Republic.,Faculty of Science, National Centre for Biomolecular Research, Masaryk University, Brno, Czech Republic
| | - Pamela A Burger
- Research Institute of Wildlife Ecology, Department of Integrative Biology and Evolution, Vienna, Austria
| | - Petr Horin
- Department of Animal Genetics, Veterinary and Pharmaceutical University, Brno, Czech Republic.,Ceitec VFU, RG Animal Immunogenomics, Brno, Czech Republic
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13
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Abstract
Leprosy is a chronic infectious disease of the skin and peripheral nerves that presents a strong link with the host genetic background. Different approaches in genetic studies have been applied to leprosy and today leprosy is among the infectious diseases with the greatest number of genetic risk variants identified. Several leprosy genes have been implicated in host immune response to pathogens and point to specific pathways that are relevant for host defense to infection. In addition, host genetic factors are also involved in the heterogeneity of leprosy clinical manifestations and in excessive inflammatory responses that occur in some leprosy patients. Finally, genetic studies in leprosy have provided strong evidence of pleiotropic effects between leprosy and other complex diseases, such as immune-mediated or neurodegenerative diseases. These findings not only impact on the field of leprosy and infectious diseases but also make leprosy a good model for the study of complex immune-mediated diseases. Here, we summarize recent genetic findings in leprosy susceptibility and discuss the overlap of the genetic control in leprosy with Parkinson's disease and inflammatory bowel disease. Moreover, some limitations, challenges, and potential new avenues for future genetics studies of leprosy are also discussed in this review.
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14
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Carvalho JCD, Araújo MG, Coelho-Dos-Reis JGA, Peruhype-Magalhães V, Alvares CC, Moreira MDL, Teixeira-Carvalho A, Martins-Filho OA, Araújo MSS. Phenotypic and functional features of innate and adaptive immunity as putative biomarkers for clinical status and leprosy reactions. Microb Pathog 2018; 125:230-239. [PMID: 30195647 DOI: 10.1016/j.micpath.2018.09.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 07/31/2018] [Accepted: 09/05/2018] [Indexed: 12/20/2022]
Abstract
The aim of this study was to identify phenotypic and functional biomarkers associated with distinct clinical status of leprosy or leprosy reactions. The study included tuberculoid/borderline (BB/BT/T) and lepromatous (BL/L) leprosy poles as well as Type-1 and Type-2 leprosy reactions along with healthy controls (NI). A range of peripheral blood biomarkers of innate (neutrophils - NEU and monocytes - MON) and adaptive immunity (CD4+ and CD8+ T-cells) were evaluated ex vivo and upon in vitro stimuli with M. leprae antigen. Data analysis allowed the selection of NEUTLR4+ (ex vivo) and CD4+IL-10+ (in vitro) as universal biomarkers increased in all leprosy patients and those exhibiting leprosy reactions. A range of biomarkers were commonly found in both poles of leprosy patients, including decreased levels of MONTGF-β+ (ex vivo) and increased levels of MONTNF-α+, CD4+TGF-β+, CD8+TLR2+, CD8+TNF-α+, CD8+IL-4+ and CD8+TGF-β+ (in vitro). Noteworthy was that MONHLA-DR+ (ex vivo) and CD8+IL-10+ (in vitro) were particularly found in BL/L patients. Leprosy patients with Type-1 reaction exhibited a larger list of altered biomarkers, mainly involving activation markers (TLR2, TLR4, HLA-DR and DAF-2T) in NEU and MON along with CD4+ and CD8+ cells. In summary, this study provided insights about immunological features of leprosy poles and leprosy reactional episodes with putative applicability, including novel biomarkers for complementary diagnosis and future therapeutic approaches in clinical studies.
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Affiliation(s)
- Jairo Campos de Carvalho
- Grupo Integrado de Pesquisas em Biomarcadores, Instituto René Rachou/FIOCRUZ - MG, Belo Horizonte, Minas Gerais, Brazil; Fundação Hospitalar do Estado de Minas Gerais, Alameda Vereador Álvaro Celso, 100 - Santa Efigênia, Belo Horizonte, Minas Gerais, Brazil.
| | - Marcelo Grossi Araújo
- Serviço de Dermatologia do Hospital das Clínicas da Universidade Federal de Minas Gerais, Al. Álvaro Celso, 55, Santa Efigênia, Belo Horizonte, Minas Gerais, Brazil.
| | | | - Vanessa Peruhype-Magalhães
- Grupo Integrado de Pesquisas em Biomarcadores, Instituto René Rachou/FIOCRUZ - MG, Belo Horizonte, Minas Gerais, Brazil.
| | - Cláudio Caetano Alvares
- Grupo Integrado de Pesquisas em Biomarcadores, Instituto René Rachou/FIOCRUZ - MG, Belo Horizonte, Minas Gerais, Brazil.
| | - Marcela de Lima Moreira
- Grupo Integrado de Pesquisas em Biomarcadores, Instituto René Rachou/FIOCRUZ - MG, Belo Horizonte, Minas Gerais, Brazil.
| | - Andréa Teixeira-Carvalho
- Grupo Integrado de Pesquisas em Biomarcadores, Instituto René Rachou/FIOCRUZ - MG, Belo Horizonte, Minas Gerais, Brazil.
| | - Olindo Assis Martins-Filho
- Grupo Integrado de Pesquisas em Biomarcadores, Instituto René Rachou/FIOCRUZ - MG, Belo Horizonte, Minas Gerais, Brazil.
| | - Márcio Sobreira Silva Araújo
- Grupo Integrado de Pesquisas em Biomarcadores, Instituto René Rachou/FIOCRUZ - MG, Belo Horizonte, Minas Gerais, Brazil.
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15
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Dallmann-Sauer M, Correa-Macedo W, Schurr E. Human genetics of mycobacterial disease. Mamm Genome 2018; 29:523-538. [PMID: 30116885 PMCID: PMC6132723 DOI: 10.1007/s00335-018-9765-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 07/23/2018] [Indexed: 12/18/2022]
Abstract
Mycobacterial diseases are caused by members of the genus Mycobacterium, acid-fast bacteria characterized by the presence of mycolic acids within their cell walls. Claiming almost 2 million lives every year, tuberculosis (TB) is the most common mycobacterial disease and is caused by infection with M. tuberculosis and, in rare cases, by M. bovis or M. africanum. The second and third most common mycobacterial diseases are leprosy and buruli ulcer (BU), respectively. Both diseases affect the skin and can lead to permanent sequelae and deformities. Leprosy is caused by the uncultivable M. leprae while the etiological agent of BU is the environmental bacterium M. ulcerans. After exposure to these mycobacterial species, a majority of individuals will not progress to clinical disease and, among those who do, inter-individual variability in disease manifestation and outcome can be observed. Susceptibility to mycobacterial diseases carries a human genetic component and intense efforts have been applied over the past decades to decipher the exact nature of the genetic factors controlling disease susceptibility. While for BU this search was mostly conducted on the basis of candidate genes association studies, genome-wide approaches have been widely applied for TB and leprosy. In this review, we summarize some of the findings achieved by genome-wide linkage, association and transcriptome analyses in TB disease and leprosy and the recent genetic findings for BU susceptibility.
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Affiliation(s)
- Monica Dallmann-Sauer
- Program in Infectious Diseases and Immunity in Global Health, Research Institute, McGill University Health Centre, Montreal, QC, Canada.,The McGill International TB Centre, McGill University, Montreal, QC, Canada.,Departments of Human Genetics and Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Wilian Correa-Macedo
- Program in Infectious Diseases and Immunity in Global Health, Research Institute, McGill University Health Centre, Montreal, QC, Canada.,The McGill International TB Centre, McGill University, Montreal, QC, Canada.,Department of Biochemistry, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Erwin Schurr
- Program in Infectious Diseases and Immunity in Global Health, Research Institute, McGill University Health Centre, Montreal, QC, Canada. .,The McGill International TB Centre, McGill University, Montreal, QC, Canada. .,Departments of Human Genetics and Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada. .,Department of Biochemistry, Faculty of Medicine, McGill University, Montreal, QC, Canada.
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16
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Cambri G, Mira MT. Genetic Susceptibility to Leprosy-From Classic Immune-Related Candidate Genes to Hypothesis-Free, Whole Genome Approaches. Front Immunol 2018; 9:1674. [PMID: 30079069 PMCID: PMC6062607 DOI: 10.3389/fimmu.2018.01674] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 07/06/2018] [Indexed: 01/15/2023] Open
Abstract
Genetics plays a crucial role in controlling susceptibility to infectious diseases by modulating the interplay between humans and pathogens. This is particularly evident in leprosy, since the etiological agent, Mycobacterium leprae, displays semiclonal characteristics not compatible with the wide spectrum of disease phenotypes. Over the past decades, genetic studies have unraveled several gene variants as risk factors for leprosy per se, disease clinical forms and the occurrence of leprosy reactions. As expected, several of these genes are immune-related; yet, hypothesis-free approaches have led to genes not classically linked to immune response. The PARK2, originally described as a Parkinson's disease gene, illustrates the case: Parkin-the protein coded by PARK2-was defined as an important player regulating innate and adaptive immune responses only years after its description as a leprosy susceptibility gene. Interestingly, even with the use of powerful hypothesis-free study designs such as genome-wide association studies, most of the major gene effect controlling leprosy susceptibility remains elusive. One hypothesis to explain this "hidden heritability" is that rare variants not captured by classic association studies are of critical importance. To address this question, massively parallel sequencing of large segments of the human genome-even whole exomes/genomes-is an alternative to properly identify rare, disease-causing mutations. These mutations may then be investigated through sophisticated approaches such as cell reprogramming and genome editing applied to create in vitro models for functional leprosy studies.
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Affiliation(s)
- Geison Cambri
- Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | - Marcelo Távora Mira
- Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
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17
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Krause-Kyora B, Nutsua M, Boehme L, Pierini F, Pedersen DD, Kornell SC, Drichel D, Bonazzi M, Möbus L, Tarp P, Susat J, Bosse E, Willburger B, Schmidt AH, Sauter J, Franke A, Wittig M, Caliebe A, Nothnagel M, Schreiber S, Boldsen JL, Lenz TL, Nebel A. Ancient DNA study reveals HLA susceptibility locus for leprosy in medieval Europeans. Nat Commun 2018; 9:1569. [PMID: 29717136 PMCID: PMC5931558 DOI: 10.1038/s41467-018-03857-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 03/16/2018] [Indexed: 01/26/2023] Open
Abstract
Leprosy, a chronic infectious disease caused by Mycobacterium leprae (M. leprae), was very common in Europe till the 16th century. Here, we perform an ancient DNA study on medieval skeletons from Denmark that show lesions specific for lepromatous leprosy (LL). First, we test the remains for M. leprae DNA to confirm the infection status of the individuals and to assess the bacterial diversity. We assemble 10 complete M. leprae genomes that all differ from each other. Second, we evaluate whether the human leukocyte antigen allele DRB1*15:01, a strong LL susceptibility factor in modern populations, also predisposed medieval Europeans to the disease. The comparison of genotype data from 69 M. leprae DNA-positive LL cases with those from contemporary and medieval controls reveals a statistically significant association in both instances. In addition, we observe that DRB1*15:01 co-occurs with DQB1*06:02 on a haplotype that is a strong risk factor for inflammatory diseases today. Leprosy, caused by infection with Mycobacterium leprae, was common in Europe in the Middle Ages. Here, Krause-Kyora et al. analyze ancient DNA from a medieval Danish leprosarium to assemble 10 complete bacterial genomes and perform association analysis of the DRB1*15:01 allele with risk of leprosy infection.
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Affiliation(s)
- Ben Krause-Kyora
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany. .,Max Planck Institute for the Science of Human History, Jena, 07745, Germany.
| | - Marcel Nutsua
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany
| | - Lisa Boehme
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany
| | - Federica Pierini
- Department of Evolutionary Ecology, Research Group for Evolutionary Immunogenomics, Max Planck Institute for Evolutionary Biology, Plön, 24306, Germany
| | - Dorthe Dangvard Pedersen
- Department of Forensic Medicine, Unit of Anthropology (ADBOU), University of Southern Denmark, Odense S, 5260, Denmark
| | | | - Dmitriy Drichel
- Department of Statistical Genetics and Bioinformatics, Cologne Center for Genomics (CCG), University of Cologne, Cologne, 50931, Germany
| | - Marion Bonazzi
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany
| | - Lena Möbus
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany
| | - Peter Tarp
- Department of Forensic Medicine, Unit of Anthropology (ADBOU), University of Southern Denmark, Odense S, 5260, Denmark
| | - Julian Susat
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany
| | - Esther Bosse
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany
| | | | | | | | - Andre Franke
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany
| | - Michael Wittig
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany
| | - Amke Caliebe
- Institute of Medical Informatics and Statistics, Kiel University, Kiel, 24105, Germany
| | - Michael Nothnagel
- Department of Statistical Genetics and Bioinformatics, Cologne Center for Genomics (CCG), University of Cologne, Cologne, 50931, Germany
| | - Stefan Schreiber
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany.,Clinic for Internal Medicine, University Hospital of Schleswig-Holstein, Kiel, 24105, Germany
| | - Jesper L Boldsen
- Department of Forensic Medicine, Unit of Anthropology (ADBOU), University of Southern Denmark, Odense S, 5260, Denmark
| | - Tobias L Lenz
- Department of Evolutionary Ecology, Research Group for Evolutionary Immunogenomics, Max Planck Institute for Evolutionary Biology, Plön, 24306, Germany
| | - Almut Nebel
- Institute of Clinical Molecular Biology, Kiel University, Kiel, 24105, Germany
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18
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Ibrahim H, Nada E, El Taieb M, Fayed H, Yasin Y. Serum interleukin-6 and interferon-γ in patients with leprosy. EGYPTIAN JOURNAL OF DERMATOLOGY AND VENEREOLOGY 2018. [DOI: 10.4103/ejdv.ejdv_45_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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19
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Yuan Y, You Y, Wen Y, Liu J, Li H, Zhang Y, Wu N, Liu S, Zhang S, Chen J, Ai J, Zhang W, Zhang Y. Identification of novel genetic loci GAL3ST4 and CHGB involved in susceptibility to leprosy. Sci Rep 2017; 7:16352. [PMID: 29180661 PMCID: PMC5703986 DOI: 10.1038/s41598-017-16422-1] [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] [Received: 07/24/2017] [Accepted: 10/30/2017] [Indexed: 01/26/2023] Open
Abstract
Leprosy has long been thought to have a strong genetic component, and so far, only positional cloning and genomewide association studies have been used to study the genetic susceptibility to leprosy,while whole exome sequencing (WES) approach has not yet been applied. In this study, we used WES approach on four leprosy patients and four healthy control relatives from two leprosy families. We found three new susceptible loci of leprosy, one in GAL3ST4 and two in CHGB. We went on to validate the findings of WES using 151 leprosy cases and 226 healthy controls by Sanger sequencing. Stratified by gender, GAL3ST4 was found to be the susceptible gene only for the female population, and CHGB48 and CHGB23 were susceptibile to leprosy for the male population, respectively). Moreover, the gene expression levels of the three susceptible loci were measured by real-time PCR after the stimulation by M. leprae antigens in the PBMC (peripheral blood mononuclear cells) of 69 healthy people. The results showed that the female subjects with high frequent genotype in GAL3ST4 had a fivefold elevated expression. We suggest the polymorphisms in GAL3ST4 in different population are associated with increased risk of leprosy.
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Affiliation(s)
- Youhua Yuan
- Key Laboratory of Medical Virology, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Department of Clinical laboratory, Henan Provincial People's Hospital, Zhengzhou, China
| | - Yuangang You
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
| | - Yan Wen
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jian Liu
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Huanying Li
- Beijing Tropical Medicine Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yumeng Zhang
- Key Laboratory of Medical Virology, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Nan Wu
- Key Laboratory of Medical Virology, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shuang Liu
- Key Laboratory of Medical Virology, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shanshan Zhang
- Key Laboratory of Medical Virology, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jiazhen Chen
- Key Laboratory of Medical Virology, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jingwen Ai
- Key Laboratory of Medical Virology, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wenhong Zhang
- Key Laboratory of Medical Virology, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ying Zhang
- Key Laboratory of Medical Virology, Department of Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China. .,Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA.
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20
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Poland GA, Ovsyannikova IG, Kennedy RB. Personalized vaccinology: A review. Vaccine 2017; 36:5350-5357. [PMID: 28774561 PMCID: PMC5792371 DOI: 10.1016/j.vaccine.2017.07.062] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 06/19/2017] [Accepted: 07/12/2017] [Indexed: 12/18/2022]
Abstract
At the current time, the field of vaccinology remains empirical in many respects. Vaccine development, vaccine immunogenicity, and vaccine efficacy have, for the most part, historically been driven by an empiric “isolate-inactivate-inject” paradigm. In turn, a population-level public health paradigm of “the same dose for everyone for every disease” model has been the normative thinking in regard to prevention of vaccine-preventable infectious diseases. In addition, up until recently, no vaccines had been designed specifically to overcome the immunosenescence of aging, consistent with a post-WWII mentality of developing vaccines and vaccine programs for children. It is now recognized that the current lack of knowledge concerning how immune responses to vaccines are generated is a critical barrier to understanding poor vaccine responses in the elderly and in immunoimmaturity, discovery of new correlates of vaccine immunogenicity (vaccine response biomarkers), and a directed approach to new vaccine development. The new fields of vaccinomics and adversomics provide models that permit global profiling of the innate, humoral, and cellular immune responses integrated at a systems biology level. This has advanced the science beyond that of reductionist scientific approaches by revealing novel interactions between and within the immune system and other biological systems (beyond transcriptional level), which are critical to developing “downstream” adaptive humoral and cellular responses to infectious pathogens and vaccines. Others have applied systems level approaches to the study of antibody responses (a.k.a. “systems serology”), [1] high-dimensional cell subset immunophenotyping through CyTOF, [2,3] and vaccine induced metabolic changes [4]. In turn, this knowledge is being utilized to better understand the following: identifying who is at risk for which infections; the level of risk that exists regarding poor immunogenicity and/or serious adverse events; and the type or dose of vaccine needed to fully protect an individual. In toto, such approaches allow for a personalized approach to the practice of vaccinology, analogous to the substantial inroads that individualized medicine is playing in other fields of human health and medicine. Herein we briefly review the field of vaccinomics, adversomics, and personalized vaccinology.
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Affiliation(s)
- G A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA.
| | - I G Ovsyannikova
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA
| | - R B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA
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21
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Omar SYA, Alkuriji A, Alwasel S, Dar JA, Alhammad A, Christmas S, Mansour L. Genotypic diversity of the Killer Cell Immunoglobulin-like Receptors (KIR) and their HLA class I Ligands in a Saudi population. Genet Mol Biol 2016; 39:14-23. [PMID: 27007893 PMCID: PMC4807387 DOI: 10.1590/1678-4685-gmb-2015-0055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 08/04/2015] [Indexed: 12/31/2022] Open
Abstract
Killer Cell Immunoglobulin-like Receptors (KIR) have been used as good markers for the study of genetic predisposition in many diseases and in human genetic population dynamics. In this context, we have investigated the genetic diversity of KIR genes and their main HLA class I ligands in Saudi population and compared the data with other studies of neighboring populations. One hundred and fourteen randomly selected healthy Saudi subjects were genotyped for the presence or absence of 16 KIR genes and their HLA-C1, -C2, -Bw4Thr80 and Bw4Ile80 groups, using a PCR-SSP technique. The results show the occurrence of the framework genes (3DL2, 3DL3 and 2DL4) and the pseudogenes (2DP1 and 3DP1) at highest frequencies. All inhibitory KIR (iKIR) genes appeared at higher frequencies than activating genes (aKIR), except for 2DS4 with a frequency of 90.35%. A total of 55 different genotypes were observed appearing at different frequencies, where 12 are considered novel. Two haplotypes were characterized, AA and Bx (BB and AB), which were observed in 24.5% and 75.5% respectively of the studied group. The frequencies of iKIR + HLA associations were found to be much higher than aKIR + HLA. KIR genes frequencies in the Saudi population are comparable with other Middle Eastern and North African populations.
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Affiliation(s)
- Suliman Y Al Omar
- Zoology Department, College of Science, King Saud University, Riyad, Saudi Arabia
| | - Afrah Alkuriji
- Zoology Department, College of Science, King Saud University, Riyad, Saudi Arabia
| | - Saleh Alwasel
- Zoology Department, College of Science, King Saud University, Riyad, Saudi Arabia
| | - Javid Ahmed Dar
- Central Laboratory College of Science, King Saud University, Riyad, Saudi Arabia
| | - Alwaleed Alhammad
- Immunology Unit, Department of Pathology, King Saud University, Riyad, Saudi Arabia
| | - Stephen Christmas
- Department of Clinical Infection, Microbiology & Immunology, Institute of Global Health, Faculty of Health & Life Sciences, University of Liverpool, Liverpool, UK
| | - Lamjed Mansour
- Zoology Department, College of Science, King Saud University, Riyad, Saudi Arabia
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