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Deiana G, Sun R, Huang J, Napolioni V, Ciccocioppo R. Contribution of infectious diseases to the selection of ADH1B and ALDH2 gene variants in Asian populations. ALCOHOL, CLINICAL & EXPERIMENTAL RESEARCH 2024; 48:855-866. [PMID: 38462538 PMCID: PMC11073917 DOI: 10.1111/acer.15288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND The gene variants ADH1B*2 (Arg48His, rs1229984) and ALDH2*2 (Glu504Lys, rs671) are common in East Asian populations but rare in other populations. We propose that selective pressures from pathogen exposure and dietary changes during the neolithic transition favored these variants. Thus, their current association with differences in alcohol sensitivity likely results from phenotypic plasticity rather than direct natural selection. METHODS Samples sourced from the Allele Frequency Database (ALFRED) were utilized to compute the average frequency of ADH1B*2 and ALDH2*2 across 88 and 61 countries, respectively. Following computation of the average national allele frequencies, we tested the significance of their correlations with ecological variables. Subsequently, we subjected them to Principal Component Analysis (PCA) and Elastic Net regularization. For comprehensive evaluation, we collected individual-level phenotypic associations, compiling a Phenome-Wide Association Study (PheWAS) spanning multiple ethnicities. RESULTS Following multiple testing correction, ADH1B*2 displayed significant correlations with Neolithic transition timing (r = 0.405, p.adj = 2.013e-03, n = 57) and historical trypanosome burden (r = -0.418, p.adj = 0.013, n = 57). The first two components of PCA explained 47.7% of the total variability across countries, with the top three contributors being the historical indices of population density and trypanosome and leprosy burdens. Historical burdens of the Mycobacteria tuberculosis and leprosy were the sole predictive variables with positive coefficients that survived Elastic Net regularization. CONCLUSIONS Our analyses suggest that Mycobacteria may have played a role in the joint selection of ADH1B*2 and ALDH2*2, expanding the "toxic aldehyde hypothesis" to include Mycobacterium leprae. Additionally, our hypothesis, linked to dietary shifts from rice domestication, emphasizes nutritional deficiencies as a key element in the selective pressure exerted by Mycobacteria. This offers a plausible explanation for the high frequency of ADH1B*2 and ALDH2*2 in Asian populations.
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Affiliation(s)
- Giovanni Deiana
- Center for Neuroscience, Pharmacology Unit, School of Pharmacy, University of Camerino
| | - Ruinan Sun
- Department of Public and Ecosystem Health, Cornell University College of Veterinary Medicine, Ithaca, NY, USA
| | - Jie Huang
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen, China
- Institute for Global Health and Development, Peking University, Beijing, China
| | - Valerio Napolioni
- School of Biosciences and Veterinary Medicine, University of Camerino
| | - Roberto Ciccocioppo
- Center for Neuroscience, Pharmacology Unit, School of Pharmacy, University of Camerino
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Wang Z, Liu T, Li W, Yu G, Mi Z, Wang C, Liao X, Huai P, Chu T, Liu D, Sun L, Fu X, Sun Y, Wang H, Wang N, Liu J, Liu H, Zhang F. Genome-wide meta-analysis and fine-mapping prioritize potential causal variants and genes related to leprosy. MedComm (Beijing) 2023; 4:e415. [PMID: 38020709 PMCID: PMC10674079 DOI: 10.1002/mco2.415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 09/05/2023] [Accepted: 09/22/2023] [Indexed: 12/01/2023] Open
Abstract
To date, genome-wide association studies (GWASs) have discovered 35 susceptible loci of leprosy; however, the cumulative effects of these loci can only partially explain the overall risk of leprosy, and the causal variants and genes within these loci remain unknown. Here, we conducted out new GWASs in two independent cohorts of 5007 cases and 4579 controls and then a meta-analysis in these newly generated and multiple previously published (2277 cases and 3159 controls) datasets were performed. Three novel and 15 previously reported risk loci were identified from these datasets, increasing the known leprosy risk loci of explained genetic heritability from 23.0 to 38.5%. A comprehensive fine-mapping analysis was conducted, and 19 causal variants and 14 causal genes were identified. Specifically, manual checking of epigenomic information from the Epimap database revealed that the causal variants were mainly located within the immune-relevant or immune-specific regulatory elements. Furthermore, by using gene-set, tissue, and cell-type enrichment analyses, we highlighted the key roles of immune-related tissues and cells and implicated the PD-1 signaling pathways in the pathogenetic mechanism of leprosy. Collectively, our study identified candidate causal variants and elucidated the potential regulatory and coding mechanisms for genes associated with leprosy.
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Affiliation(s)
- Zhenzhen Wang
- Department of BiostatisticsSchool of Public HealthCheeloo College of MedicineShandong UniversityJinanShandongChina
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Tingting Liu
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Wenchao Li
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Gongqi Yu
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Zihao Mi
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Chuan Wang
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Xiaojie Liao
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Pengcheng Huai
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Tongsheng Chu
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Dianchang Liu
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Lele Sun
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Xi'an Fu
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Yonghu Sun
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Honglei Wang
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Na Wang
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Jianjun Liu
- Department of Human Genetics, Genome Institute of SingaporeSingaporeSingapore
| | - Hong Liu
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
| | - Furen Zhang
- Shandong Provincial Key Lab for Dermatovenereology, Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical SciencesJinanShandongChina
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Gilchrist JJ, Auckland K, Parks T, Mentzer AJ, Goldblatt L, Naranbhai V, Band G, Rockett KA, Toure OB, Konate S, Sissoko S, Djimdé AA, Thera MA, Doumbo OK, Sow S, Floyd S, Pönnighaus JM, Warndorff DK, Crampin AC, Fine PEM, Fairfax BP, Hill AVS. Genome-wide association study of leprosy in Malawi and Mali. PLoS Pathog 2022; 18:e1010312. [PMID: 36121873 PMCID: PMC9624411 DOI: 10.1371/journal.ppat.1010312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 11/01/2022] [Accepted: 07/12/2022] [Indexed: 11/28/2022] Open
Abstract
Leprosy is a chronic infection of the skin and peripheral nerves caused by Mycobacterium leprae. Despite recent improvements in disease control, leprosy remains an important cause of infectious disability globally. Large-scale genetic association studies in Chinese, Vietnamese and Indian populations have identified over 30 susceptibility loci for leprosy. There is a significant burden of leprosy in Africa, however it is uncertain whether the findings of published genetic association studies are generalizable to African populations. To address this, we conducted a genome-wide association study (GWAS) of leprosy in Malawian (327 cases, 436 controls) and Malian (247 cases, 368 controls) individuals. In that analysis, we replicated four risk loci previously reported in China, Vietnam and India; MHC Class I and II, LACC1 and SLC29A3. We further identified a novel leprosy susceptibility locus at 10q24 (rs2015583; combined p = 8.81 × 10-9; OR = 0.51 [95% CI 0.40 - 0.64]). Using publicly-available data we characterise regulatory activity at this locus, identifying ACTR1A as a candidate mediator of leprosy risk. This locus shows evidence of recent positive selection and demonstrates pleiotropy with established risk loci for inflammatory bowel disease and childhood-onset asthma. A shared genetic architecture for leprosy and inflammatory bowel disease has been previously described. We expand on this, strengthening the hypothesis that selection pressure driven by leprosy has shaped the evolution of autoimmune and atopic disease in modern populations. More broadly, our data highlights the importance of defining the genetic architecture of disease across genetically diverse populations, and that disease insights derived from GWAS in one population may not translate to all affected populations.
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Affiliation(s)
- James J. Gilchrist
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- MRC–Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- * E-mail: (JJG); (AVSH)
| | - Kathryn Auckland
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Tom Parks
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- Department of Infectious Diseases, Imperial College London, London, United Kingdom
| | - Alexander J. Mentzer
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | | | - Vivek Naranbhai
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Gavin Band
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Kirk A. Rockett
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Ousmane B. Toure
- Malaria Research and Training Centre, University of Science, Techniques and Technologies of Bamako, Bamako, Mali
| | - Salimata Konate
- Malaria Research and Training Centre, University of Science, Techniques and Technologies of Bamako, Bamako, Mali
| | - Sibiri Sissoko
- Malaria Research and Training Centre, University of Science, Techniques and Technologies of Bamako, Bamako, Mali
| | - Abdoulaye A. Djimdé
- Malaria Research and Training Centre, University of Science, Techniques and Technologies of Bamako, Bamako, Mali
| | - Mahamadou A. Thera
- Malaria Research and Training Centre, University of Science, Techniques and Technologies of Bamako, Bamako, Mali
| | - Ogobara K. Doumbo
- Malaria Research and Training Centre, University of Science, Techniques and Technologies of Bamako, Bamako, Mali
| | - Samba Sow
- Center for Vaccine Development, Bamako, Mali
| | - Sian Floyd
- Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Jörg M. Pönnighaus
- Malawi Epidemiology and Intervention Research Unit (formerly Karonga Prevention Study), Chilumba, Malawi
| | - David K. Warndorff
- Malawi Epidemiology and Intervention Research Unit (formerly Karonga Prevention Study), Chilumba, Malawi
| | - Amelia C. Crampin
- Malawi Epidemiology and Intervention Research Unit (formerly Karonga Prevention Study), Chilumba, Malawi
| | - Paul E. M. Fine
- Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Benjamin P. Fairfax
- MRC–Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Adrian V. S. Hill
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- Jenner Institute, University of Oxford, Oxford, United Kingdom
- * E-mail: (JJG); (AVSH)
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Sheng L, Luo Q, Chen L. Amino Acid Solute Carrier Transporters in Inflammation and Autoimmunity. Drug Metab Dispos 2022; 50:DMD-AR-2021-000705. [PMID: 35152203 DOI: 10.1124/dmd.121.000705] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/14/2022] [Accepted: 01/27/2022] [Indexed: 02/21/2024] Open
Abstract
The past decade exposed the importance of many homeostasis and metabolism related proteins in autoimmunity disease and inflammation. Solute carriers (SLCs) are a group of membrane channels that can transport amino acids, the building blocks of proteins, nutrients, and neurotransmitters. This review summarizes the role of SLCs amino acid transporters in inflammation and autoimmunity disease. In detail, the importance of Glutamate transporters SLC1A1, SLC1A2, and SLC1A3, mainly expressed in the brain where they help prevent glutamate excitotoxicity, is discussed in the context of central nervous system disorders such as multiple sclerosis. Similarly, the cationic amino acid transporter SLC7A1 (CAT1), which is an important arginine transporter for T cells, and SLC7A2 (CAT2), essential for innate immunity. SLC3 family proteins, which bind with light chains from the SLC7 family (SLC7A5, SLC7A7 and SLC7A11) to form heteromeric amino acid transporters, are also explored to describe their roles in T cells, NK cells, macrophages and tumor immunotherapies. Altogether, the link between SLC amino acid transporters with inflammation and autoimmunity may contribute to a better understanding of underlying mechanism of disease and provide novel potential therapeutic avenues. Significance Statement SIGNIFICANCE STATEMENT In this review, we summarize the link between SLC amino acid transporters and inflammation and immune responses, specially SLC1 family members and SLC7 members. Studying the link may contribute to a better understanding of related diseases and provide potential therapeutic targets and useful to the researchers who have interest in the involvement of amino acids in immunity.
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Affiliation(s)
| | - Qi Luo
- Tsinghua University, China
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5
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Jiang Y, Dou X, Wan K. Epidemiological Characteristics and Trends of Registered Leprosy Cases in China From 2004 to 2016. Am J Trop Med Hyg 2021; 105:31-36. [PMID: 34232909 DOI: 10.4269/ajtmh.20-0178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 11/07/2020] [Indexed: 11/07/2022] Open
Abstract
Leprosy is an infectious disease caused by Mycobacterium leprae. China was once one of the countries with severe leprosy epidemics, but its incidence has remained low in recent years. Despite this, there has been no decrease in its incidence more recently, and it is still a public health problem which needs to be controlled. In this study, we analyzed the epidemiological characteristics and trends in the detection rate of new cases of leprosy in China between 2004 and 2016. There were 4,519 cases of leprosy in 28 provinces, municipalities, and autonomous regions between 2004 and 2016, and the total incidence was 0.02815 (per 100,000 individuals) and 21 deaths. The overall incidence of leprosy showed an inverted "V" distribution (i.e., an increase followed by a decrease). Yunnan, Sichuan, Guangdong, Guizhou, and Guangxi were the top five regions with the highest incidence rates, and they accounted for 68.7% of the total cases. There were more male patients than female patients, and peasants accounted for 71.7% of the leprosy cases. The patients with leprosy in China were mainly concentrated in the age-group 15-44 years, as this group accounted for 57.2% of the total cases. The purpose of this study is to explore the epidemiology of leprosy in China. This analysis will be useful for future monitoring of leprosy and establishment of public health measures in China, in keeping with the "Programme for the Elimination of Leprosy in China 2011-2020."
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Affiliation(s)
- Yi Jiang
- 1State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiangfeng Dou
- 2Beijing Center for Diseases Prevention and Control, Beijing, China
| | - Kanglin Wan
- 1State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
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6
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Matsumoto A, Nakashima C, Kimura S, Sueoka E, Aragane N. ALDH2 polymorphism rs671 is a predictor of PD-1/PD-L1 inhibitor efficacy against thoracic malignancies. BMC Cancer 2021; 21:584. [PMID: 34022841 PMCID: PMC8140463 DOI: 10.1186/s12885-021-08329-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/06/2021] [Indexed: 12/26/2022] Open
Abstract
Background Aldehyde dehydrogenase 2 (ALDH2) plays an important role in the endogenous aldehyde detoxification of various types of cells. ALDH2*2, a variant allele of the ALDH2 polymorphism rs671, leads to decreased enzymatic activity. ALDH2*2 may enhance tumor antigen presentation due to aldehyde-induced DNA damage while suppressing peripheral blood T cell counts and T cell activation. Methods On the basis of our hypothesis that rs671 affects the sensitivity of immune checkpoint inhibitors (ICIs), we evaluated the effects of rs671 on patients with thoracic malignancies who started ICI therapy in 2016–2019. The cohort consisted of 105 cases, including 64 cases with adenocarcinoma and 30 cases with squamous cell carcinoma, 49 of whom were ALDH2*2 carriers. The first ICI was PD-1/PD-L1 inhibitor (Nivolumab, Pembrolizumab, or Atezolizumab) in all cases. Results The best response to anti-PD-1/PD-L1 therapy (partial response/stable disease/progressive disease) was 36%/50%/14% in the rs671(−) cases; however, the response was relatively poor in the rs671(+) cases (27%/29%/45%, respectively) (p = 0.002). The hazard ratio (95% confidence interval) of disease progression within the observation period of 6 months for the rs671(+) cases was estimated to be 5.0 (2.5–10) after the adjustment for covariates, including sex, Brinkman index, treatment line, tumor tissue programmed death-ligand 1 positivity rate, tumor tissue EGFR mutation. This association was also maintained in a stratified analysis, suggesting that ALDH2*2 is an independent negative predictive factor for the short-term prognosis of anti-PD-1/PD-L1 therapy. Thus, the progression-free survival (PFS) ratio of the rs671(+) cases decreased rapidly after ICI initiation but was eventually higher than that of the rs671(−) cases (restricted mean survival time in 12 months from 2 to 3 years afterward was 1.3 times that of the rs671(−) cases). Moreover, the highest PFS ratio after 2 years among sub-groups was found in the first-line treatment sub-group of rs671(+) group (40%). Conclusions Our study suggests that rs671 may be an accurate and cost-effective predictor of PD-1/PD-L1 inhibitor treatment, in which optimal case selection is an important issue. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08329-y.
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Affiliation(s)
- Akiko Matsumoto
- Department of Social Medicine, Saga University School of Medicine, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
| | - Chiho Nakashima
- Division of Hematology, Respiratory Medicine and Oncology, Saga University School of Medicine, Saga, Japan
| | - Shinya Kimura
- Division of Hematology, Respiratory Medicine and Oncology, Saga University School of Medicine, Saga, Japan
| | - Eizaburo Sueoka
- Department of Clinical Laboratory, Saga University Hospital, Saga, Japan
| | - Naoko Aragane
- Division of Hematology, Respiratory Medicine and Oncology, Saga University School of Medicine, Saga, Japan
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Wang H, Wang C, Wang Z, Fu X, Yu G, Sun L, Zhang F, Liu H. Identification of ZFP36L1 as an early-onset psoriasis risk gene demonstrates opposite associations with leprosy and psoriasis in the Chinese population. J Eur Acad Dermatol Venereol 2020; 34:e520-e523. [PMID: 32277516 DOI: 10.1111/jdv.16437] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H Wang
- Shandong Provincial Hospital for Skin Diseases, Shandong First Medical University, Jinan, Shandong, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, Shandong, China.,Shandong Provincial Key Lab for Dermatovenereology, Jinan, Shandong, China
| | - C Wang
- Shandong Provincial Hospital for Skin Diseases, Shandong First Medical University, Jinan, Shandong, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, Shandong, China.,Shandong Provincial Key Lab for Dermatovenereology, Jinan, Shandong, China
| | - Z Wang
- Shandong Provincial Hospital for Skin Diseases, Shandong First Medical University, Jinan, Shandong, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, Shandong, China.,Shandong Provincial Key Lab for Dermatovenereology, Jinan, Shandong, China
| | - X Fu
- Shandong Provincial Hospital for Skin Diseases, Shandong First Medical University, Jinan, Shandong, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, Shandong, China.,Shandong Provincial Key Lab for Dermatovenereology, Jinan, Shandong, China
| | - G Yu
- Shandong Provincial Hospital for Skin Diseases, Shandong First Medical University, Jinan, Shandong, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, Shandong, China.,Shandong Provincial Key Lab for Dermatovenereology, Jinan, Shandong, China
| | - L Sun
- Shandong Provincial Hospital for Skin Diseases, Shandong First Medical University, Jinan, Shandong, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, Shandong, China.,Shandong Provincial Key Lab for Dermatovenereology, Jinan, Shandong, China
| | - F Zhang
- Shandong Provincial Hospital for Skin Diseases, Shandong First Medical University, Jinan, Shandong, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, Shandong, China.,Shandong Provincial Key Lab for Dermatovenereology, Jinan, Shandong, China
| | - H Liu
- Shandong Provincial Hospital for Skin Diseases, Shandong First Medical University, Jinan, Shandong, China.,Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, Shandong, China.,Shandong Provincial Key Lab for Dermatovenereology, Jinan, Shandong, China
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8
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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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Mi Z, Liu H, Zhang F. Advances in the Immunology and Genetics of Leprosy. Front Immunol 2020; 11:567. [PMID: 32373110 PMCID: PMC7176874 DOI: 10.3389/fimmu.2020.00567] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 03/12/2020] [Indexed: 12/21/2022] Open
Abstract
Leprosy, a disease caused by the intracellular parasite Mycobacterium leprae or Mycobacterium lepromatosis, has affected humans for more than 4,000 years and is a stigmatized disease even now. Since clinical manifestations of leprosy patients present as an immune-related spectrum, leprosy is regarded as an ideal model for studying the interaction between host immune response and infection; in fact, the landscape of leprosy immune responses has been extensively investigated. Meanwhile, leprosy is to some extent a genetic disease because the genetic factors of hosts have long been considered major contributors to this disease. Many immune-related genes have been discovered to be associated with leprosy. However, immunological and genetic findings have rarely been studied and discussed together, and as a result, the effects of gene variants on leprosy immune responses and the molecular mechanisms of leprosy pathogenesis are largely unknown. In this context, we summarized advances in both the immunology and genetics of leprosy and discussed the perspective of the combination of immunological and genetic approaches in studying the molecular mechanism of leprosy pathogenesis. In our opinion, the integrating of immunological and genetic approaches in the future may be promising to elucidate the molecular mechanism of leprosy onset and how leprosy develops into different types of leprosy.
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Affiliation(s)
- Zihao Mi
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Hong Liu
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Furen Zhang
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
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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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