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Tizaoui K, Jalouli M, Ouzari HI, Harrath AH, Rizzo R, Boujelbene N, Zidi I. 3'UTR-HLA-G polymorphisms and circulating sHLA-G are associated with breast cancer: Evidence from a meta-analysis. Immunol Lett 2022; 248:78-89. [PMID: 35752280 DOI: 10.1016/j.imlet.2022.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/09/2022] [Accepted: 06/20/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Human leukocyte antigen-G (HLA-G) gene polymorphisms and circulating sHLA-G have often been linked to the risk of breast cancer (BC). However, the results remain controversial. To resolve this issue, we performed a meta-analysis of HLA-G gene polymorphisms and sHLA-G levels in BC. METHODS We performed a meta-analysis on the association of HLA-G 14-bp Insertion/Deletion (Ins/Del) and HLA-G +3142 C/G polymorphisms with BC as well as the relationship between sHLA-G and the disease outcome. RESULTS Pooled analysis showed a statistically significant association between the HLA-G 14-bp Ins/Del polymorphism and BC susceptibility for the overall population and for Caucasians. The Del allele and genotypes with at least one copy of the Del allele presented significant risks for BC. For HLA-G +3142 C/G polymorphism, the G allele significantly decreased the risk of BC for the overall population and for Caucasians, indicating that the G allele was a protective factor against BC and that the C allele was a significant risk factor for BC. The meta-analysis revealed a significantly increased level of sHLA-G patients with BC compared to the control group for the overall population, Caucasians and Asians. CONCLUSION The present meta-analysis showed a major association of both HLA-G 14-bp Ins/Del and +3142 C/G polymorphisms with BC susceptibility, suggesting Del and C variants as highly significant risk factors for BC. The present study also showed significantly higher sHLA-G levels in patients with BC compared to healthy controls. Our pooled results suggested a critical role of HLA-G in BC, thereby providing evidence to use HLA-G as a biomarker and a therapeutic tool.
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Affiliation(s)
- Kalthoum Tizaoui
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Maroua Jalouli
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Hadda-Imene Ouzari
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Abdel Halim Harrath
- King Saud University, College of Science, Department of Zoology, Riyadh, Saudi Arabia
| | - Roberta Rizzo
- Department of Experimental and Diagnostic Medicine, Section Microbiology, University of Ferrara, Ferrara, Italy
| | - Nadia Boujelbene
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia; Department of Pathology, Salah Azaïz Institute, Tunis, Tunisia
| | - Inès Zidi
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia.
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2
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Zheng G, Jia L, Yang AG. Roles of HLA-G/KIR2DL4 in Breast Cancer Immune Microenvironment. Front Immunol 2022; 13:791975. [PMID: 35185887 PMCID: PMC8850630 DOI: 10.3389/fimmu.2022.791975] [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: 10/09/2021] [Accepted: 01/19/2022] [Indexed: 11/30/2022] Open
Abstract
Human leukocyte antigen (HLA)-G is a nonclassical MHC Class I molecule, which was initially reported as a mediator of immune tolerance when expressed in extravillous trophoblast cells at the maternal-fetal interface. HLA-G is the only known ligand of killer cell immunoglobulin-like receptor 2DL4 (KIR2DL4), an atypical family molecule that is widely expressed on the surface of NK cells. Unlike other KIR receptors, KIR2DL4 contains both an arginine–tyrosine activation motif in its transmembrane region and an immunoreceptor tyrosine-based inhibitory motif (ITIM) in its cytoplasmic tail, suggesting that KIR2DL4 may function as an activating or inhibitory receptor. The immunosuppressive microenvironment exemplified by a rewired cytokine network and upregulated immune checkpoint proteins is a hallmark of advanced and therapy-refractory tumors. Accumulating evidence has shown that HLA-G is an immune checkpoint molecule with specific relevance in cancer immune escape, although the role of HLA-G/KIR2DL4 in antitumor immunity is still uncharacterized. Our previous study had shown that HLA-G was a pivotal mediator of breast cancer resistance to trastuzumab, and blockade of the HLA-G/KIR2DL4 interaction can resensitize breast cancer to trastuzumab treatment. In this review, we aim to summarize and discuss the role of HLA-G/KIR2DL4 in the immune microenvironment of breast cancer. A better understanding of HLA-G is beneficial to identifying novel biomarker(s) for breast cancer, which is important for precision diagnosis and prognostic assessment. In addition, it is also necessary to unravel the mechanisms underlying HLA-G/KIR2DL4 regulation of the immune microenvironment in breast cancer, hopefully providing a rationale for combined HLA-G and immune checkpoints targeting for the effective treatment of breast cancer.
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Affiliation(s)
- Guoxu Zheng
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Lintao Jia
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - An-Gang Yang
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
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3
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Martín-Villa JM, Vaquero-Yuste C, Molina-Alejandre M, Juarez I, Suárez-Trujillo F, López-Nares A, Palacio-Gruber J, Barrera-Gutiérrez L, Fernández-Cruz E, Rodríguez-Sainz C, Arnaiz-Villena A. HLA-G: Too Much or Too Little? Role in Cancer and Autoimmune Disease. Front Immunol 2022; 13:796054. [PMID: 35154112 PMCID: PMC8829012 DOI: 10.3389/fimmu.2022.796054] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 01/05/2022] [Indexed: 12/12/2022] Open
Abstract
HLA-G is a non-classical HLA class I molecule with immunomodulatory properties. It was initially described at the maternal-fetal interface, and it was later found that this molecule was constitutively expressed on certain immuneprivileged tissues, such as cornea, endothelial and erythroid precursors, and thymus. The immunosuppressive effect of HLA-G is exerted through the interaction with its cognate receptors, expressed on immunocompetent cells, like ILT2, expressed on NK, B, T cells and APCs; ILT4, on APCs; KIR, found on the surface of NK cells; and finally, the co-receptor CD8. Because of these immunomodulatory functions, HLA-G has been involved in several processes, amongst which organ transplantation, viral infections, cancer progression, and autoimmunity. HLA-G neo-expression on tumors has been recently described in several types of malignancies. In fact, tumor progression is tightly linked to the presence of the molecule, as it exerts its tolerogenic function, inhibiting the cells of the immune system and favoring tumor escape. Several polymorphisms in the 3’UTR region condition changes in HLA-G expression (14bp and +3142C/G, among others), which have been associated with both the development and outcome of patients with different tumor types. Also, in recent years, several studies have shown that HLA-G plays an important role in the control of autoimmune diseases. The ability of HLA-G to limit the progression of these diseases has been confirmed and, in fact, levels of the molecule and several of its polymorphisms have been associated with increased susceptibility to the development of autoimmune diseases, as well as increased disease severity. Thus, modulating HLA-G expression in target tissues of oncology patients or patients with autoimmune diseases may be potential therapeutic approaches to treat these pathological conditions.
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Affiliation(s)
- José Manuel Martín-Villa
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Christian Vaquero-Yuste
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Marta Molina-Alejandre
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Ignacio Juarez
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Fabio Suárez-Trujillo
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Adrián López-Nares
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - José Palacio-Gruber
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Luis Barrera-Gutiérrez
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Eduardo Fernández-Cruz
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Servicio de Inmunología, Hospital Universitario Gregorio Marañón, Madrid, Spain
| | - Carmen Rodríguez-Sainz
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Servicio de Inmunología, Hospital Universitario Gregorio Marañón, Madrid, Spain
| | - Antonio Arnaiz-Villena
- Departamento de Inmunología, Oftalmología y ORL, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
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4
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Dhouioui S, Laaribi AB, Boujelbene N, Jelassi R, Ben Salah H, Bellali H, Ouzari HI, Mezlini A, Zemni I, Chelbi H, Zidi I. Association of HLA-G 3'UTR polymorphisms and haplotypes with colorectal cancer susceptibility and prognosis. Hum Immunol 2021; 83:39-46. [PMID: 34763955 DOI: 10.1016/j.humimm.2021.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/23/2021] [Accepted: 10/19/2021] [Indexed: 01/08/2023]
Abstract
Human leukocyte antigen (HLA)-G has been considered as an immune modulator in several types of cancers. Its genetic polymorphisms may potentially affect the risk of developing colorectal cancer (CRC). The overall purpose of this study was to analyze the implication of HLA-G 3'untranslated region (3'UTR) polymorphisms particularly 14 pb insertion/deletion (Ins/Del; rs371194629) and + 3142C/G (rs1063320) in CRC susceptibility and progression. A comparative analysis between patients (N = 233) and controls (N = 241) demonstrated that Del allele (Odds Ratios (OR) = 1.41, 95% CI = 1.091-1.819, p = 0.008), the homozygous Del/Del genotype (OR = 1.80, 95% CI = 1.205-2.664, p = 0.003) and the codominant C/G genotype (OR = 1.59, 95% CI = 1.106-2.272, p = 0.013) were associated to CRC risk. As expected, the DelG haplotype was associated with CRC susceptibility (OR = 1.47, 95% CI = 1.068-2.012, p = 0.018). Assessment of patients' survival by Kaplan-Meier analysis indicated that the Del allele and the homozygous Del/Del genotype were associated with reduced event free survival (EFS) (Respectively, p = 0.009 and p = 0.05). Interestingly, the Del allele and the homozygous Del/Del genotype have been revealed as independent prognostic factors for poor EFS in patients with CRC. Additionally, haplotypes analysis revealed that DelG haplotype was linked with significant increase in CRC risk (log-rank; EFS: p = 0.02). Inversely, the InsC haplotype was associated with a significant reduced CRC risk (log-rank; Overall survival (OS): p < 10-6; EFS: p = 0.01). Multivariate Cox regression analysis revealed that the InsC haplotype was independently associated with significantly longer EFS (p = 0.021, HR = 0.636, 95% CI = 0.433-0.935). These findings support the implication of HLA-G polymorphisms in the CRC susceptibility suggesting HLA-G as a potent prognostic and predictive indicator for CRC. Insight into mechanisms underlying HLA-G polymorphisms could allow for the development of targeted care for CRC patients according to their genetic profile.
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Affiliation(s)
- Sabrine Dhouioui
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Ahmed-Baligh Laaribi
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Nadia Boujelbene
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia; Department of Pathology, Salah Azaïz Institute, Faculty of Medicine, Tunis, Tunisia
| | - Refka Jelassi
- LR11-IPT-06: Laboratory of Medical Parasitology, Biotechnology and Biomolecules, Pasteur Institute of Tunis, Tunis, Tunisia
| | - Hamza Ben Salah
- LR11-IPT-06: Laboratory of Medical Parasitology, Biotechnology and Biomolecules, Pasteur Institute of Tunis, Tunis, Tunisia
| | - Hedia Bellali
- Epidemiology and Public Health Department, Medical Faculty of Tunis. Head of Clinical Epidemiology Department, Habib Thameur Hospital, Tunis, Tunisia
| | - Hadda-Imene Ouzari
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Amel Mezlini
- Department of Medical Oncology, Salah Azaïz Institute, Faculty of Medicine, Tunis, Tunisia
| | - Inès Zemni
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia; Department of Surgical Oncology, Salah Azaïz Institute, Faculty of medicine, Tunis, Tunisia
| | - Hanene Chelbi
- LR11-IPT-06: Laboratory of Medical Parasitology, Biotechnology and Biomolecules, Pasteur Institute of Tunis, Tunis, Tunisia
| | - Inès Zidi
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia.
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5
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Ben Salah H, Jelassi R, Zidi I, Ben Amor A, Bizid S, Ammi R, Guizani L, Bouratbine A, Aoun K, Chelbi H. Rapid high-resolution melting method to identify human leukocyte antigen-G (HLA-G) 3' untranslated region polymorphism +3142C/G (rs1063320). Mol Genet Genomic Med 2021; 9:e1817. [PMID: 34605219 PMCID: PMC8606219 DOI: 10.1002/mgg3.1817] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 01/30/2020] [Accepted: 03/05/2020] [Indexed: 01/05/2023] Open
Abstract
Background HLA‐G is a non‐classical class I gene of the human Major Histocompatibility encoding molecules with immune‐modulatory properties. Expression of HLA‐G is being largely studied in pathological conditions, such as tumors, viral infections, inflammation, and autoimmune diseases, grafted tissues, among others. HLA‐G +3142C/G (rs1063320: dbSNP database) polymorphism is located in 3′ UTR of HAL‐G and plays a key role in determining the magnitude of gene and protein expression. The detection of HLA‐G +3142C/G polymorphism in the most published report is done through polymerase chain reaction followed by enzymatic digestion. Therefore, it is so interesting to develop a rapid and sensitive assay to genotype HLA‐G +3142C/G polymorphism. High‐resolution melt analysis (HRM) is a technology that is based on the analysis of the melting profile of PCR products through gradual temperature increase. The aim of this work is to apply high‐resolution melt method for genotyping the HLA‐G +3142C/G polymorphism. Methods DNA from 118 individuals was extracted from whole blood with QIAamp® DNA blood mini kit (Qiagen, Germany). Primer couple was designed using Primer 3 online tools so as to have only one SNP in the target sequence for high HRM efficiency. Positive Controls were identified using DNA sequencing and used as reference when assigning genotypes for trial samples. Results We were able to recognize the three genotypes with similar accuracy than DNA sequencing using high resolution melting method. Hardy‐Weinberg equilibrium test shows that our population is in equilibrium for the studied SNP. Genotypes frequencies of +3142C/G polymorphism in Tunisian general population are 0.475 for heterozygote G/C, 0.186 for homozygote G/G and 0.339 for homozygote C/C. Conclusion HRM is a cost‐effective method suitable for SNP genotyping.
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Affiliation(s)
- Hamza Ben Salah
- Laboratoire de parasitologie médicale, biotechnologies et biomolécules, Institut Pasteur de Tunis LR11IPT06, Tunis, Tunisie.,Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunis, Tunisie
| | - Refka Jelassi
- Laboratoire de parasitologie médicale, biotechnologies et biomolécules, Institut Pasteur de Tunis LR11IPT06, Tunis, Tunisie.,Faculté des Sciences de Bizerte, Université de Carthage, Tunis, Tunisie
| | - Ines Zidi
- Laboratoire des microorganismes et biomolécules actives, faculté des Sciences de Tunis, Université de Tunis El-Manar, Tunis, Tunisie
| | - Amor Ben Amor
- Laboratoire de parasitologie médicale, biotechnologies et biomolécules, Institut Pasteur de Tunis LR11IPT06, Tunis, Tunisie.,Emirates College of Technology, Abu Dhabi, UAE
| | - Sondes Bizid
- Service de gastroentérologie, Hôpital militaire de Tunis, Tunis, Tunisie
| | - Radhia Ammi
- Service des consultants externes, Institut Pasteur de Tunis, Tunis, Tunisie
| | - Lamia Guizani
- Laboratoire de parasitologie médicale, biotechnologies et biomolécules, Institut Pasteur de Tunis LR11IPT06, Tunis, Tunisie
| | - Aida Bouratbine
- Laboratoire de parasitologie médicale, biotechnologies et biomolécules, Institut Pasteur de Tunis LR11IPT06, Tunis, Tunisie
| | - Karim Aoun
- Laboratoire de parasitologie médicale, biotechnologies et biomolécules, Institut Pasteur de Tunis LR11IPT06, Tunis, Tunisie
| | - Hanen Chelbi
- Laboratoire de parasitologie médicale, biotechnologies et biomolécules, Institut Pasteur de Tunis LR11IPT06, Tunis, Tunisie
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Adolf IC, Almars A, Dharsee N, Mselle T, Akan G, Nguma IJ, Nateri AS, Atalar F. HLA-G and single nucleotide polymorphism (SNP) associations with cancer in African populations: Implications in personal medicine. Genes Dis 2021; 9:1220-1233. [PMID: 35873024 PMCID: PMC9293715 DOI: 10.1016/j.gendis.2021.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 05/15/2021] [Accepted: 06/05/2021] [Indexed: 11/30/2022] Open
Abstract
The immune system plays an important role in protecting the body against malignancy. During cancer immunoediting, the immune system can recognize and keep checking the tumor cells by down-expression of some self-molecules or by increasing expression of some novel molecules. However, the microenvironment created in the course of cancer development hampers the immune ability to recognize and destroy the transforming cells. Human Leukocyte Antigen G (HLA-G) is emerging as immune checkpoint molecule produced more by cancer cells to weaken the immune response against them. HLA-G is a non-classical HLA class I molecule which is normally expressed in immune privileged tissues as a soluble or membrane-bound protein. HLA-G locus is highly polymorphic in the non-coding 3′ untranslated region (UTR) and in the 5′ upstream regulatory region (5′ URR). HLA-G expression is controlled by polymorphisms located in these regions, and several association studies between these polymorphic sites and disease predisposition, response to therapy, and/or HLA-G protein expression have been reported. Various polymorphisms are demonstrated to modulate its expression and this is increasingly finding more significance in cancer biology. This review focuses on the relevance of the HLA-G gene and its polymorphisms in cancer development. We highlight population genetics of HLA-G as evidence to espouse the need and importance of exploring potential utility of HLA-G in cancer diagnosis, prognosis and immunotherapy in the currently understudied African population.
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Affiliation(s)
- Ismael Chatita Adolf
- Mbeya College of Health and Allied Sciences, University of Dar es Salaam, Mbeya, P.O Box 608, Tanzania
| | - Amany Almars
- Cancer Genetics & Stem Cell Group, BioDiscovery Institute, Division of Cancer and Stem Cells, School of Medicine, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Nazima Dharsee
- Ocean Road Cancer Institute, Department of Oncology, Dar es Salaam, P.O Box 3592, Tanzania
| | - Teddy Mselle
- Muhimbili University of Health and Allied Sciences, MUHAS Genetic Laboratory, Department of Biochemistry, Dar es Salaam, P.O Box 65001, Tanzania
| | - Gokce Akan
- Muhimbili University of Health and Allied Sciences, MUHAS Genetic Laboratory, Department of Biochemistry, Dar es Salaam, P.O Box 65001, Tanzania
| | - Irene Jeremiah Nguma
- Clinical Oncology Department, Mbeya Zonal Referral Hospital (MZRH), Mbeya P.O Box 419, Tanzania
| | - Abdolrahman S. Nateri
- Cancer Genetics & Stem Cell Group, BioDiscovery Institute, Division of Cancer and Stem Cells, School of Medicine, University of Nottingham, Nottingham, NG7 2UH, UK
- Corresponding author.
| | - Fatmahan Atalar
- Muhimbili University of Health and Allied Sciences, MUHAS Genetic Laboratory, Department of Biochemistry, Dar es Salaam, P.O Box 65001, Tanzania
- Child Health Institute, Department of Rare Diseases, Istanbul University, Istanbul 34093, Turkey
- Corresponding author. Muhimbili University of Health and Allied Sciences, MUHAS Genetic Laboratory, Department of Biochemistry, P.O Box 65001, Dar es Salaam, Tanzania.
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7
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Rotimi SO, Rotimi OA, Salhia B. A Review of Cancer Genetics and Genomics Studies in Africa. Front Oncol 2021; 10:606400. [PMID: 33659210 PMCID: PMC7917259 DOI: 10.3389/fonc.2020.606400] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 12/14/2020] [Indexed: 12/24/2022] Open
Abstract
Cancer is the second leading cause of death globally and is projected to overtake infectious disease as the leading cause of mortality in Africa within the next two decades. Cancer is a group of genomic diseases that presents with intra- and inter-population unique phenotypes, with Black populations having the burden of morbidity and mortality for most types. At large, the prevention and treatment of cancers have been propelled by the understanding of the genetic make-up of the disease of mostly non-African populations. By the same token, there is a wide knowledge gap in understanding the underlying genetic causes of, and genomic alterations associated with, cancer among black Africans. Accordingly, we performed a review of the literature to survey existing studies on cancer genetics/genomics and curated findings pertaining to publications across multiple cancer types conducted on African populations. We used PubMed MeSH terms to retrieve the relevant publications from 1990 to December 2019. The metadata of these publications were extracted using R text mining packages: RISmed and Pubmed.mineR. The data showed that only 0.329% of cancer publications globally were on Africa, and only 0.016% were on cancer genetics/genomics from Africa. Although the most prevalent cancers in Africa are cancers of the breast, cervix, uterus, and prostate, publications representing breast, colorectal, liver, and blood cancers were the most frequent in our review. The most frequently reported cancer genes were BRCA1, BRCA2, and TP53. Next, the genes reported in the reviewed publications’ abstracts were extracted and annotated into three gene ontology classes. Genes in the cellular component class were mostly associated with cell part and organelle part, while those in biological process and molecular function classes were mainly associated with cell process, biological regulation, and binding, and catalytic activity, respectively. Overall, this review highlights the paucity of research on cancer genomics on African populations, identified gaps, and discussed the need for concerted efforts to encourage more research on cancer genomics in Africa.
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Affiliation(s)
- Solomon O Rotimi
- Department of Translational Genomics, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States.,Department of Biochemistry, Covenant University, Ota, Nigeria
| | - Oluwakemi A Rotimi
- Department of Translational Genomics, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States.,Department of Biochemistry, Covenant University, Ota, Nigeria
| | - Bodour Salhia
- Department of Translational Genomics, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States.,Norris Comprehensive Cancer Centre, University of Southern California, Los Angeles, CA, United States
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8
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de Magalhães KCSF, Silva KR, Gomes NA, Sadissou I, Carvalho GT, Buzellin MA, Tafuri LS, Nunes CB, Nunes MB, Donadi EA, da Silva IL, Simões RT. HLA-G 14 bp In/Del and +3142 C/G genotypes are differentially expressed between patients with grade IV gliomas and controls. Int J Neurosci 2020; 131:327-335. [PMID: 32241248 DOI: 10.1080/00207454.2020.1744593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Aim: Human Leukocyte Antigen-G (HLA-G) is a non-classical class I molecule that is involved in maternal-fetal immunotolerance. In cancer, this molecule contributes to the tumor escape. The aim of this study was to evaluate the 14 bp In/Del and +3142 C > G polymorphisms of the HLA-G 3' UTR and its relation with plasma and tissue HLA-G expression in patients with grade IV (high-grade) and grade I/II (low-grade) gliomas and controls.Patients and methods: Peripheral blood and tumor biopsies were collected from 85 patients with gliomas and blood samples from 94 controls. Polymorphisms were analyzed from blood DNA. Soluble HLA-G (sHLA-G) was measured by ELISA in plasma of the subjects and the tissue expression by immunohistochemistry on patient's tissue.Results: Higher levels of sHLA-G were observed in grade IV gliomas patients than in controls (p < 0.0001). In grade IV patients, the heterozygous 14pb In/Del, +3142 C/G genotypes and Del/C*In/G haplotype were associated with higher sHLA-G levels (p < 0.0001) when compared with controls. GBM patients were stratified into high and low sHLA-G expression and an association was found between +3142 C allele and high sHLA-G plasmatic levels (p = 0.0095). Tissue HLA-G immunolabel was higher in high-grade than low-grade gliomas (p = 0.0033).Conclusion: This was the first study evaluating HLA-G 3' UTR polymorphisms and expression in patients with gliomas. The 14 bp In/Del and +3142 C/G genotypes and haplotypes showed high influence over sHLA-G expression, suggesting a heterozygous advantage in the tumor context and may contribute to a worse prognosis in glioma patients.
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Affiliation(s)
| | - Karla R Silva
- Department of Health Management, School of Nursing, Federal University of Minas Gerais (EEUFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Nathália A Gomes
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil
| | - Ibrahim Sadissou
- Division of Clinical Immunology, Department of Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Gérvasio T Carvalho
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil.,Neurosurgery Department of the Santa Casa de Belo Horizonte Hospital (SCBH), Belo Horizonte, Minas Gerais, Brazil
| | - Marcelo A Buzellin
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil
| | - Luciene S Tafuri
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil
| | - Cristiana B Nunes
- Department of Pathological Anatomy and Forensic Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Maurício B Nunes
- Pathological Anatomy Service of Santa Casa of Belo Horizonte Hospital (SCBH), Belo Horizonte, Minas Gerais, Brazil
| | - Eduardo A Donadi
- Division of Clinical Immunology, Department of Medicine, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Istéfani Luciene da Silva
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil.,Federal University of West of Bahia (UFOB), Bahia, Brazil
| | - Renata T Simões
- Institute of Education and Research of Santa Casa de Belo Horizonte Hospital (IEP/SCBH), Minas Gerais, Brazil
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9
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Sayad S, Ahmadi SAY, Moradi M, Nekouian R, Anbari K, Shahsavar F. A meta-analysis on diagnostic accuracy of serum HLA-G level in breast cancer. EXPERT REVIEW OF PRECISION MEDICINE AND DRUG DEVELOPMENT 2020. [DOI: 10.1080/23808993.2020.1735936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Soheila Sayad
- Department of Breast Surgery, Firoozgar Clinical Research Development Center (FCRDC), Iran University of Medical Sciences, Tehran, Iran
| | - Seyyed Amir Yasin Ahmadi
- Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
- Pediatric Growth and Development Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Moradi
- Department of Breast Surgery, Firoozgar Clinical Research Development Center (FCRDC), Iran University of Medical Sciences, Tehran, Iran
| | - Reza Nekouian
- Pediatric Growth and Development Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Khatereh Anbari
- Social Determinants of Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Farhad Shahsavar
- Department of Immunology, Lorestan University of Medical Sciences, Khorramabad, Iran
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10
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Rodrigues JKF, Crovella S, Celerino da Silva R. The HLA-G 14 bp allele frequency in different populations: A global meta-analysis. Meta Gene 2020. [DOI: 10.1016/j.mgene.2019.100624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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11
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Kadiam S, Ramasamy T, Ramakrishnan R, Mariakuttikan J. Association of HLA-G 3'UTR 14-bp Ins/Del polymorphism with breast cancer among South Indian women. J Clin Pathol 2019; 73:456-462. [PMID: 31796638 DOI: 10.1136/jclinpath-2019-205772] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 10/22/2019] [Accepted: 11/16/2019] [Indexed: 01/21/2023]
Abstract
AIM Human leucocyte antigen-G (HLA-G) and tumour necrosis factor-alpha (TNF-α) are potent immune mediators implicated in the pathogenesis of breast cancer. The polymorphisms in the 3' untranslated region (3'UTR) of HLA-G and promoter region of TNF-α are well known to influence their expression levels and may consequently contribute to varied disease predisposition. Therefore, in the present study, we explored the effect of HLA-G 3'UTR (14-bp Ins/Del and +3142 C/G) and TNF-α promoter (-238 G/A and -308 G/A) polymorphisms on breast cancer risk among South Indian women. METHODS A total of 342 women (100 patients with breast cancer, 142 patients with benign breast disorder and 100 healthy women volunteers) were enrolled for this study. Genotyping of HLA-G and TNF-α polymorphisms were performed by direct PCR DNA amplification and amplification refractory mutation system PCR methods, respectively. RESULTS Significantly higher frequencies of HLA-G 14-bp Ins allele and Ins/+3142G haplotype were observed in patients with breast cancer than healthy controls (OR=1.56, Pc=0.036) and patients with benign breast disorder (OR=1.47, Pc=0.046). Similarly, subgroup analysis based on age at diagnosis (age≤50 years and >50 years) of breast cancer revealed higher frequencies of 14-bp Ins allele and Ins/+3142G haplotype in the patients of age >50 years than healthy controls (OR=1.77, Pc=0.03). Additionally, the extended haplotypes and multifactor dimensionality reduction analysis of the studied polymorphisms revealed significant contribution of HLA-G 14-bp Ins/Del polymorphism towards breast cancer risk. CONCLUSION The findings of the present study suggest that the HLA-G 14-bp Ins/Del polymorphism could influence breast cancer pathogenesis among South Indian women.
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Affiliation(s)
- Sony Kadiam
- Department of Immunology, Madurai Kamaraj University, Madurai, India
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12
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Ouni N, Chaaben AB, Kablouti G, Ayari F, Douik H, Abaza H, Gara S, Elgaaied-Benammar A, Guemira F, Tamouza R. The Impact of HLA-G 3'UTR Polymorphisms in Breast Cancer in a Tunisian Population. Immunol Invest 2019; 48:521-532. [PMID: 30945586 DOI: 10.1080/08820139.2019.1569043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Human leukocyte antigens G and E (HLA-G and HLA-E) are nonclassical major histocompatibility complex (MHC) class I molecules. These molecules play an important role in immune surveillance by inhibiting natural killer and cytotoxic T cells responsible for immune escape. The expression of HLA-G and HLA-E has been associated with several diseases including tumor. The main objective of the study is to evaluate the impact of three HLA-G 3'UTR potential polymorphisms: +3187 A > G (rs9380142), +3142 G > C (rs1063320), +2960 14-base pair (bp) Insertion/Deletion (Ins/Del) (rs66554220), and the HLA-E*01:01/01:03 A > G (rs1264457) polymorphism in Tunisian breast cancer population. A total of 355 patients and 381 controls were genotyping for HLA-G and HLA-E polymorphisms using a Taq Man assay. +3142 C allele and +3142 C/C genotype were significantly associated with increased risk of breast cancer (p = 0.00002; OR = 1.58; 95% CI = 27-1.97) (49% versus 35%; p = 0.0001; OR = 1.79; 95% CI = 1.32-2.44). In addition, Del allele and the homozygous state for Del/Del genotype confer a risk for breast cancer (52% versus 45%, p = 0.006; OR = 1.33, 95% CI = 1.08-1.64) (28% versus 22%, p = 0.039; OR = 1.43, 95% CI = 0.90-2.25). However, no statistical significant differences were reported for HLA-G + 3187 A > G and HLA-E variations and breast cancer in a Tunisian population. The found results indicate that HLA-G may play an important role in the breast cancer.
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Affiliation(s)
- Nesrine Ouni
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Arij Ben Chaaben
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
- b Jean Dausset Laboratory and INSERM, U1160 , Saint Louis Hospital , Paris , France
| | - Ghalia Kablouti
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Fayza Ayari
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Hayet Douik
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Hajer Abaza
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Sonia Gara
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Amel Elgaaied-Benammar
- c Immunology Department, Faculty of Mathematics, Physics and Natural Sciences , Tunis El Manar University , Tunis , Tunisia
| | - Fethi Guemira
- a Clinical Biology Department , Salah Azaiz Institute , Tunis , Tunisia
| | - Ryad Tamouza
- d INSERM, U955, Translational Psychiatry , Paris-East University , Creteil , France
- e AP-HP, DHU PePSY, Department of Psychiatry , Hôpital Henri Mondor, Université Paris-Est-Creteil , Creteil , France
- f Fondation FondaMental , Creteil , France
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13
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Jiang Y, Li W, Lu J, Zhao X, Li L. HLA-G +3142 C>G polymorphism and cancer risk: Evidence from a meta-analysis and trial sequential analysis. Medicine (Baltimore) 2019; 98:e16067. [PMID: 31232944 PMCID: PMC6636957 DOI: 10.1097/md.0000000000016067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Human leukocyte antigen-G (HLA-G) plays an important role in the development of human cancers. Several published studies have investigated the relationship between the HLA-G +3142 C>G (rs1063320) polymorphism and cancer susceptibility in different populations. However, the results have yet to reach a consensus in different types of cancers. Therefore, we performed a meta-analysis to evaluate the effect of the HLA-G +3142 C>G polymorphism on cancer risk. METHODS A systematic literature search was performed in PubMed, Web of Science, CNKI, VIP, and Wanfang databases to acquire eligible studies up to February 20, 2019. The pooled odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were used to assess the correlation between the HLA-G +3142 C>G polymorphism and cancer risk in a fixed-effects or random-effects model. Publication bias assessments, sensitivity analysis and stratified analyses were performed. To reduce the risk of type I error and assess whether the present evidence of the results was adequate and conclusive, trial sequential analysis (TSA) was also performed. RESULTS Eight case-control studies comprising 1546 cases and 1595 controls were included in the present meta-analysis. The results revealed that the HLA-G +3142 C>G mutation significantly decreased the total cancer risk in recessive comparison model and allelic comparison model. Further stratified analyses showed that the HLA-G +3142 C>G mutation significantly decreases the risk of cancer in Asian populations. No similar relationship was found in other subgroups. No publication bias was identified in our present study. Omitting a single study at a time had no significant impact on the pooled OR of the sensitivity analysis assessing the association between the HLA-G +3142 C>G polymorphism and cancer risk, which demonstrates the stability of the current meta-analysis. TSA also identified our current findings. CONCLUSIONS The results of our meta-analysis show that the HLA-G +3142 C>G polymorphism plays a protect role in the occurrence of human cancers, particularly in Asian populations. More case-control studies with different types of cancer in various ethnicities are needed to verify the findings.
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Affiliation(s)
- You Jiang
- Department of General Surgery, Hefei Second People's Hospital
| | - Wenbo Li
- Department of General Surgery, Hefei Second People's Hospital
| | - Jun Lu
- Department of General Surgery, Hefei Second People's Hospital
| | - Xin Zhao
- Department of Emergency, the First Affiliated Hospital, Anhui Medical University, Hefei, Anhui Province, People's Republic of China
| | - Liang Li
- Department of General Surgery, Hefei Second People's Hospital
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14
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Jiang Y, Lu J, Wu YE, Zhao X, Li L. Genetic variation in the HLA-G 3'UTR 14-bp insertion/deletion and the associated cancer risk: evidence from 25 case-control studies. Biosci Rep 2019; 39:BSR20181991. [PMID: 30962267 PMCID: PMC6509057 DOI: 10.1042/bsr20181991] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 03/29/2019] [Accepted: 04/03/2019] [Indexed: 12/27/2022] Open
Abstract
Human leucocyte antigen-G (HLA-G) plays an important role in the progression of human cancers. A growing number of published studies have investigated the correlation between the HLA-G 3' untranslated region (3'UTR) 14-bp insertion/deletion (Ins/Del) polymorphism and the associated cancer risk in different populations. However, results from previous studies are inconclusive and inconsistent for the different type of cancers. Therefore, we undertook a meta-analysis to assess the effects of the HLA-G 14-bp Ins/Del polymorphism on cancer risk. A systematic literature search was conducted in PubMed, Web of Science, CNKI, VIP, and Wanfang databases to obtain relevant studies up to 28 January 2019. The pooled odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were used. Twenty-five published case-control studies comprising 4981 cases and 6391 controls were included in the current meta-analysis. The results of the overall analysis revealed that the HLA-G 14-bp Ins/Ins genotype and Ins allele were associated with the total cancer risk in the homozygote comparison model (Ins/Ins vs. Del/Del: OR = 0.80, CI = 0.64-1.00; P=0.049) and the allelic comparison model (Ins vs. Del: OR = 0.89, CI = 0.81-0.99; P=0.035), with a protective role. Further subgroup analyses indicated that the HLA-G 14-bp Ins/Del polymorphism was associated with the risk of breast cancer and oesophageal cancer (EC), and significant risk of cancer was also observed in Mixed populations and population-based (PB). The results of our meta-analysis show that the HLA-G 14-bp Ins/Del polymorphism plays an important role in cancer risk, particularly in breast cancer and esophageal cancer in Mixed populations. Additional case-control studies with different types of cancer spanning different ethnicities are needed to extend the present findings.
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Affiliation(s)
- You Jiang
- Department of General Surgery, Hefei Second People's Hospital, Anhui Medical University, Hefei 230011, Anhui, China
| | - Jun Lu
- Department of General Surgery, Hefei Second People's Hospital, Anhui Medical University, Hefei 230011, Anhui, China
| | - Yue-E Wu
- Department of Electrocardiogram Diagnosis, The Second Affiliated Hospital, Anhui Medical University, Hefei 230060, Anhui, China
| | - Xin Zhao
- Department of Pathology, The First Affiliated Hospital, Anhui Medical University, Hefei 230022, Anhui, China
| | - Liang Li
- Department of General Surgery, Hefei Second People's Hospital, Anhui Medical University, Hefei 230011, Anhui, China
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15
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de Almeida BS, Muniz YCN, Prompt AH, Castelli EC, Mendes-Junior CT, Donadi EA. Genetic association between HLA-G 14-bp polymorphism and diseases: A systematic review and meta-analysis. Hum Immunol 2018; 79:724-735. [PMID: 30102938 DOI: 10.1016/j.humimm.2018.08.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 08/09/2018] [Accepted: 08/09/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND HLA-G is an immune checkpoint molecule. Since a differential molecule expression has been reported even for healthy individuals, many studies have focused on polymorphisms at HLA-G regulatory regions, particularly the 3' untranslated region (3'UTR). The presence/absence of a 14-bp sequence was the first polymorphism described and it is the most studied in association between HLA-G and disorders. METHODS In this study, we performed a systematic review and meta-analysis of all association studies published regarding the HLA-G 14-bp. RESULTS We verified association between 14-bp alleles and diseases in the following situations: (1) presence of 14-bp (insertion) conferred susceptibility to preeclampsia (child alleles evaluated) and systemic lupus erythematosus (OR = 1.42; 95%CI = 1.04-1.93; p = 0.026 and OR = 1.13; 95%CI = 1.01-1.27, p = 0.028); (2) 14-bp absence (deletion) was associated with increased risk to breast cancer (OR = 1.23; 95%CI = 1.06-1.43; p = 0.006) and human Cytomegalovirus infection (OR = 2.06; 95%CI = 1.60-2.64; p < 0.0001); and (3) a risk association was observed between the group of reproductive disorders and the 14-bp insertion (OR = 1.12; 95%CI = 1.01-1.24; p = 0.034). CONCLUSIONS Considering that others 14-bp associations were inconclusive and that other variation sites observed at HLA-G 3'UTR exhibit a proven role on post-transcriptional regulation of HLA-G expression, the complete 3'UTR segment should be analyzed in terms of disease susceptibility, instead of a single polymorphism.
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Affiliation(s)
- Bibiana Sgorla de Almeida
- Divisão de Imunologia Clínica, Departamento de Clínica Médica, Faculdade de Medicina de Ribeirão Preto (FMRP), Universidade de São Paulo (USP), 14049-900 Ribeirão Preto, SP, Brazil; Laboratório Multiusuário de Estudos em Biologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil.
| | - Yara Costa Netto Muniz
- Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil.
| | - Alice Heidrich Prompt
- Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil.
| | - Erick C Castelli
- Departamento de Patologia, Faculdade de Medicina de Botucatu, Unesp - Univ. Estadual Paulista, 18618-970 Botucatu, SP, Brazil.
| | - Celso Teixeira Mendes-Junior
- Faculdade de Filosofia Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), 14049-900 Ribeirão Preto, SP, Brazil.
| | - Eduardo Antonio Donadi
- Divisão de Imunologia Clínica, Departamento de Clínica Médica, Faculdade de Medicina de Ribeirão Preto (FMRP), Universidade de São Paulo (USP), 14049-900 Ribeirão Preto, SP, Brazil.
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16
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Ouni N, Ben Chaaben A, Kablouti G, Lajnef M, Ayari F, Abaza H, Damak T, Harzallah L, Benammar-Elgaaeid A, Guemira F, Tamouza R. MICA-129Met/Val Polymorphism Is Associated with Early-Onset Breast Cancer Risk. Immunol Invest 2017; 46:603-614. [DOI: 10.1080/08820139.2017.1336175] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Nesrine Ouni
- Clinical Biology Department, Salah Azaiez Institute, Tunis, Tunisia
| | - Arij Ben Chaaben
- Clinical Biology Department, Salah Azaiez Institute, Tunis, Tunisia
- Jean Dausset Laboratory and INSERM, Saint Louis Hospital, Paris, France
| | - Ghalia Kablouti
- Clinical Biology Department, Salah Azaiez Institute, Tunis, Tunisia
| | - Mohamed Lajnef
- French Institute of Health and Medical Research, Mondor Institute for Biomedical Research INSERM U955, Creteil, France
| | - Fayza Ayari
- Clinical Biology Department, Salah Azaiez Institute, Tunis, Tunisia
| | - Hajer Abaza
- Clinical Biology Department, Salah Azaiez Institute, Tunis, Tunisia
| | - Tarek Damak
- Clinical Biology Department, Salah Azaiez Institute, Tunis, Tunisia
| | - Latifa Harzallah
- Clinical Biology Department, Salah Azaiez Institute, Tunis, Tunisia
| | - Amel Benammar-Elgaaeid
- Immunology Department, Faculty of Mathematics, Physics and Natural Sciences, Tunis El Manar University, Tunisia
| | - Fethi Guemira
- Clinical Biology Department, Salah Azaiez Institute, Tunis, Tunisia
| | - Ryad Tamouza
- Jean Dausset Laboratory and INSERM, Saint Louis Hospital, Paris, France
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17
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Ben Fredj N, Sakly K, Bortolotti D, Aissi M, Frih-Ayed M, Rotola A, Caselli E, Cura F, Sakly N, Aouni M, Di Luca D, Rizzo R. The association between functional HLA-G 14bp insertion/deletion and +3142 C>G polymorphisms and susceptibility to multiple sclerosis. Immunol Lett 2016; 180:24-30. [DOI: 10.1016/j.imlet.2016.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/16/2016] [Accepted: 10/18/2016] [Indexed: 11/30/2022]
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