1
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Phan ANL, Pham TTT, Phan XT, Huynh N, Nguyen TM, Cao CTT, Nguyen DT, Luong KTX, Nguyen TTM, Tran ANK, Pham LTT, Nguyen VVT, Swagemakers S, Bui CB, Van Hagen PM. CD40LG mutations in Vietnamese patients with X-linked hyper-IgM syndrome; catastrophic anti-phospholipid syndrome as a new complication. Mol Genet Genomic Med 2021; 9:e1732. [PMID: 34114358 PMCID: PMC8404229 DOI: 10.1002/mgg3.1732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/07/2021] [Accepted: 05/24/2021] [Indexed: 02/03/2023] Open
Abstract
Background X‐linked hyper‐IgM syndrome (XHIGM) is a rare primary immunodeficiency caused by CD40 ligand defects. Methods We identified three patients with XHIGM in Ho Chi Minh City, Vietnam. Whole‐exome sequencing, immunological analyses and western blot were performed to investigate phenotypic and genotypic features. Results Despite showing symptoms typical of XHIGM, including recurrent sinopulmonary infections, oral ulcers and otitis media, the diagnosis was significantly delayed. One patient developed anti‐phospholipid syndrome, which has been documented for the first time in XHIGM syndrome. Two patients had elevated IgM levels and all of them had low IgG levels. Exome sequencing revealed mutations in the CD40LG gene: one novel splicing mutation c.156+2T>A and two previously characterised mutations (non‐frameshift deletion c.436_438delTAC, stop‐gain c.654C>A). Due to these mutations, the CD40 ligand was not expressed in any of the three patients, as demonstrated by western blot analysis. Conclusion This is the first report of XHIGM syndrome in Vietnam indicates that an effective diagnostic strategy, such as sequencing analysis, contributes to reliable diagnosis and subsequent therapy.
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Affiliation(s)
| | | | - Xinh Thi Phan
- Department of Haematology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Nghia Huynh
- Department of Haematology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | | | | | | | | | | | | | - Linh Thi Truc Pham
- Functional Genomic Unit, DNA Medical Technology, Ho Chi Minh City, Vietnam
| | | | - Sigrid Swagemakers
- Department of Pathology & Clinical Bioinformatics, Erasmus MC, Rotterdam, The Netherlands
| | - Chi-Bao Bui
- Functional Genomic Unit, DNA Medical Technology, Ho Chi Minh City, Vietnam.,School of Medicine, Vietnam National University, Ho Chi Minh City, Vietnam.,Molecular Genetics, City Children's Hospital, Ho Chi Minh City, Vietnam
| | - Petrus Martinus Van Hagen
- Department of Immunology, Erasmus MC, Rotterdam, The Netherlands.,Department of Internal medicine, Division Clinical Immunology, Erasmus MC, Rotterdam, The Netherlands
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2
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Zuo W, Zhao X. Natural killer cells play an important role in virus infection control: Antiviral mechanism, subset expansion and clinical application. Clin Immunol 2021; 227:108727. [PMID: 33887436 PMCID: PMC8055501 DOI: 10.1016/j.clim.2021.108727] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 03/15/2021] [Accepted: 04/11/2021] [Indexed: 02/06/2023]
Abstract
With the global spread of coronavirus disease 2019 (COVID-19), the important role of natural killer (NK) cells in the control of various viral infections attracted more interest, via non-specific activation, such as antibody-dependent cell-mediated cytotoxicity (ADCC) and activating receptors, as well as specific activation, such as memory-like NK generation. In response to different viral infections, NK cells fight viruses in different ways, and different NK subsets proliferate. For instance, cytomegalovirus (CMV) induces NKG2C + CD57 + KIR+ NK cells to expand 3-6 months after hematopoietic stem cell transplantation (HSCT), but human immunodeficiency virus (HIV) induces KIR3DS1+/KIR3DL1 NK cells to expand in the acute phase of infection. However, the similarities and differences among these processes and their molecular mechanisms have not been fully discussed. In this article, we provide a summary and comparison of antiviral mechanisms, unique subset expansion and time periods in peripheral blood and tissues under different conditions of CMV, HIV, Epstein-Barr virus (EBV), COVID-19 and hepatitis B virus (HBV) infections. Accordingly, we also discuss current clinical NK-associated antiviral applications, including cell therapy and NK-related biological agents, and we state the progress and future prospects of NK cell antiviral treatment.
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Affiliation(s)
- Wei Zuo
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Xiangyu Zhao
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China.
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3
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Li X, Xu D, Cheng B, Zhou Y, Chen Z, Wang Y. Mitochondrial DNA insert into CD40 ligand gene-associated X-linked hyper-IgM syndrome. Mol Genet Genomic Med 2021; 9:e1646. [PMID: 33764006 PMCID: PMC8172197 DOI: 10.1002/mgg3.1646] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/16/2021] [Accepted: 02/19/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND X-linked hyper-IgM (X-HIGM), which results from mutations in the CD40LG gene located on chromosome Xq26.3, is the most common form of HIGM. To date, more than 130 variants of the CD40L gene have been reported. We described a patient with novel de novo nuclear mitochondrial DNA sequences (NUMTs) in the CD40LG gene that have resulted in X-HIGM. METHODS Whole-exome sequencing (WES) analysis was used to screen for causal variants in the genome, and the candidate breakpoint was confirmed by Sanger sequencing. RESULTS A new mutation of CD40LG, which deletes A at position 17 followed by a 147-nucleotide from mitochondrial DNA copies insertion in exon 1, was detected in a 20-month-old boy harbouring an X-HIGM combined with immunodeficiency syndrome. CONCLUSION This is one of the few cases of a human genetic disease caused by nuclear mitochondrial DNA sequences (NUMTs). The presented data serve to demonstrate that de novo NUMT transfer of nucleic acid is a novel mechanism of X-HIGM.
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Affiliation(s)
- Xuejing Li
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Dan Xu
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Beilei Cheng
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Yunlian Zhou
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Zhimin Chen
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Yingshuo Wang
- Department of Pulmonology, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
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4
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Huang SH, Meng XY, Bai ZJ, Li Y, Wu SY. X-Linked Hyper IgM Syndrome Manifesting as Recurrent Pneumocystis jirovecii Pneumonia: A Case Report. J Trop Pediatr 2020; 66:648-654. [PMID: 32388558 DOI: 10.1093/tropej/fmaa023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We reported a Chinese boy with X-linked hyper IgM (XHIGM) syndrome, manifesting as recurrent and severe pneumonia caused by Pneumocystis jirovecii. His parents were healthy and unrelated. In August 2018, the 5-month-old boy manifested as cough and dyspnea, and then in July 2019, he was admitted because of the same symptoms. Immunological results of the two admissions both showed low IgG, low IgA, normal IgM and high levels of 1,3-β-D-glucan (BDG). Using next-generation sequencing (NGS), great reading counts of P. jirovecii were identified from the deep sputum in both admissions. Caspofungin combined with trimethoprim-sulfamethoxazole were used to anti-infection, and he recovered quickly. Whole-exome sequencing was performed for this family because of immune suppression, the disease-causing gene (exon 10-22 of CD40L) deletion for XHIGM syndrome was identified. NGS is beneficial for etiology diagnosis. Pneumocystis jirovecii pneumonia as an opportunistic infection could be recurrent in patients with XHIGM syndrome.
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Affiliation(s)
- Sai Hu Huang
- Pediatric Intensive Care Unit, Soochow University Affiliated Children's Hospital, Suzhou, Jiangsu, CN 215003, China
| | - Xiang Ying Meng
- Pediatric Intensive Care Unit, Soochow University Affiliated Children's Hospital, Suzhou, Jiangsu, CN 215003, China
| | - Zhen Jiang Bai
- Pediatric Intensive Care Unit, Soochow University Affiliated Children's Hospital, Suzhou, Jiangsu, CN 215003, China
| | - Ying Li
- Pediatric Intensive Care Unit, Soochow University Affiliated Children's Hospital, Suzhou, Jiangsu, CN 215003, China
| | - Shui Yan Wu
- Pediatric Intensive Care Unit, Soochow University Affiliated Children's Hospital, Suzhou, Jiangsu, CN 215003, China
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5
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Li J, Tang RS, Shi Z, Li JQ. Nuclear factor‐κB in rheumatoid arthritis. Int J Rheum Dis 2020; 23:1627-1635. [PMID: 32965792 DOI: 10.1111/1756-185x.13958] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 08/08/2020] [Accepted: 08/09/2020] [Indexed: 02/02/2023]
Affiliation(s)
- Jie Li
- School of Medicine, University of Electronic Science and Technology of China & department of Pharmacy, Sichuan Provincial People's Hospital, Chengdu, China
| | - Rong-Shuang Tang
- School of Medicine, University of Electronic Science and Technology of China & department of Pharmacy, Sichuan Provincial People's Hospital, Chengdu, China
| | - Zhou Shi
- School of Medicine, University of Electronic Science and Technology of China & department of Pharmacy, Sichuan Provincial People's Hospital, Chengdu, China
| | - Jin-Qi Li
- School of Medicine, University of Electronic Science and Technology of China & department of Pharmacy, Sichuan Provincial People's Hospital, Chengdu, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province & Sichuan Academy of Medical Sciences, Chengdu, China
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6
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Huot N, Rascle P, Petitdemange C, Contreras V, Palgen JL, Stahl-Hennig C, Le Grand R, Beignon AS, Jacquelin B, Müller-Trutwin M. Non-human Primate Determinants of Natural Killer Cells in Tissues at Steady-State and During Simian Immunodeficiency Virus Infection. Front Immunol 2020; 11:2134. [PMID: 33013901 PMCID: PMC7511519 DOI: 10.3389/fimmu.2020.02134] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/06/2020] [Indexed: 12/11/2022] Open
Abstract
Natural killer (NK) cells play essential roles in immunity to viruses and tumors. Their function is genetically determined but also modulated by environmental factors. The distribution and functional regulation of these cells vary depending on the tissue. NK cell behavior in lymphoid tissues is so far understudied. Non-human primate (NHP) models are essential for the development of therapies and vaccines against human diseases, and access to NHP tissues allows insights into spatial regulations of NK cells. Here, we investigated tissue-specific parameters of NK cells from NHP species, i.e., cynomolgus macaque (Macaca fascicularis), African green monkey (Chlorocebus sabaeus), rhesus macaque (Macaca mulatta), and baboon (Papio anubis). By comprehensive multi-dimensional analysis of NK cells from secondary lymphoid organs, intestinal mucosa, liver, and blood, we identified tissue- and species-specific patterns of NK cell frequencies, phenotypes, and potential activity. Also, we defined the tissue-specific characteristics of NK cells during infection by the simian immunodeficiency virus. Altogether, our results provide a comprehensive anatomic analysis of NK cells in different tissues of primates at steady-state and during a viral infection.
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Affiliation(s)
- Nicolas Huot
- Unité HIV, Inflammation et Persistance, Institut Pasteur, Paris, France
| | - Philippe Rascle
- Unité HIV, Inflammation et Persistance, Institut Pasteur, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | | | - Vanessa Contreras
- CEA-Université Paris Saclay-Inserm, U1184, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases, IMVA-HB/IDMIT, Fontenay-aux-Roses, France
| | - Jean-Louis Palgen
- CEA-Université Paris Saclay-Inserm, U1184, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases, IMVA-HB/IDMIT, Fontenay-aux-Roses, France
| | | | - Roger Le Grand
- CEA-Université Paris Saclay-Inserm, U1184, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases, IMVA-HB/IDMIT, Fontenay-aux-Roses, France
| | - Anne-Sophie Beignon
- CEA-Université Paris Saclay-Inserm, U1184, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial Diseases, IMVA-HB/IDMIT, Fontenay-aux-Roses, France
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7
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Cao J, Lv X, Zhang Y, Xu A, Jiang T. LncRNA GAS5 activates the AMPK pathway in peripheral blood mononuclear cells derived from rheumatoid arthritis patients. Int J Rheum Dis 2020; 23:1318-1327. [PMID: 32749060 DOI: 10.1111/1756-185x.13930] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/09/2020] [Accepted: 07/11/2020] [Indexed: 01/03/2023]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is an inflammatory disease, which seriously affects human joints. This study aimed to detect the changes in the expression of long non-coding RNA growth arrest-specific transcript 5 (GAS5) in peripheral blood mononuclear cells (PBMCs) derived from patients with RA and healthy controls (HC), as well as analyze the correlation between GAS5 and clinical indicators of RA. Also, the role and mechanism of GAS5 in regulating the AMP-activated protein kinase (AMPK) pathway in RA was further assessed. METHODS The PBMCs were isolated from the RA patients. Next, GAS5 expression was detected in RA PBMCs by quantitative real-time polymerase chain reaction, and its diagnostic value on RA was determined by receiver operating characteristic curves (ROC). The levels of interleukin (IL)-6 and IL-17 were detected via enzyme-linked immunosorbent assay. The expressions of total and phosphorylated AMPK as well as p38MAPK were determined with Western blot. RESULTS GAS5 was down-regulated in RA PBMCs, and consequently serves as a potential diagnostic marker for RA (sensitivity, 90%; specificity, 80%; area under the curve, 0.89). Further, GAS5 negatively regulated erythrocyte sedimentation rate, C-reactive protein, Disease Activity Score of 28 joints and antibodies against cyclic citrullinated peptide, as well as the IL-6 and IL-17 levels of RA PBMCs. Similarly, GAS5 was observed to activate the AMPK pathway. CONCLUSION GAS5 activated the AMPK pathway, while it negatively regulated the expression of cytokines IL-6 and IL-17.
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Affiliation(s)
- Jijun Cao
- The First People's Hospital of Taicang, Jiangsu, China
| | - Xinlu Lv
- The First People's Hospital of Taicang, Jiangsu, China
| | - Yuemei Zhang
- The First People's Hospital of Taicang, Jiangsu, China
| | - Aiping Xu
- The First People's Hospital of Taicang, Jiangsu, China
| | - Tingwang Jiang
- Department of Key Laboratory, The Second People's Hospital of Changshu, The Affiliated Changshu Hospital of Xuzhou Medical University, Jiangsu, China
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8
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Li J, Miao H, Wu L, Fang Y. Interstitial pneumonia as the initial presentation in an infant with a novel mutation of CD40 ligand-associated X-linked hyper-IgM syndrome: A case report. Medicine (Baltimore) 2020; 99:e20505. [PMID: 32541472 PMCID: PMC7302602 DOI: 10.1097/md.0000000000020505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION X-linked hyper-IgM syndrome is a type of primary combined immunodeficiency disorder caused by mutations in CD40 ligand. Opportunistic infections caused by P jirovecii, cytomegalovirus (CMV), or fungi are frequently the first presenting symptom of the patients with X-linked hyper-IgM syndrome. PATIENT CONCERNS Here, we report a 10-month-old infant who presented with cyanosis and shortness of breath. The infant exhibited no medical or birth history indicating a primary immune deficiency and was first diagnosed with interstitial pneumonia and acute respiratory failure on admission. DIAGNOSES The infant was diagnosed with Pneumocystis jirovecii pneumonia combined with CMV and fungal infection through gene sequencing by nasopharyngeal swab and G-test. Whole-exome sequencing from a blood sample was performed and identified a functional mutation across the CD40 ligand gene (NM_000074;exon1;C.86_87del) resulting in an amino acid change (P.T29Sfl*18) attributed to X-linked hyper IgM syndrome. INTERVENTIONS The infant received continuous positive airway pressure ventilation treatment combined with trimethoprim-sulfamethoxazole for Pneumocystis jirovecii pneumonia, ganciclovir for CMV, voriconazole for fungal infection and substitution of high-dose immunoglobulin. OUTCOMES Six months after discharge from our hospital, the infant remained well. CONCLUSION Opportunistic infections should be suspected in infants presenting with severe interstitial pneumonia. Primary immune deficiency diseases should also be considered in infants diagnosed with opportunistic infections.
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Affiliation(s)
- Jian Li
- Department of Hematology Oncology
| | - Hongjun Miao
- Department of Emergency Medicine, Children's Hospital of Nanjing Medical University, Nanjing, PR China
| | - Lihui Wu
- Department of Emergency Medicine, Children's Hospital of Nanjing Medical University, Nanjing, PR China
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9
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Du X, Tang W, Chen X, Zeng T, Wang Y, Chen Z, Xu T, Zhou L, Tang X, An Y, Zhao X. Clinical, genetic and immunological characteristics of 40 Chinese patients with CD40 ligand deficiency. Scand J Immunol 2019; 90:e12798. [PMID: 31179555 DOI: 10.1111/sji.12798] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/29/2019] [Accepted: 06/05/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Xiao Du
- Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical University Chongqing China
- Chongqing Key Laboratory of Child Infection and Immunity Children’s Hospital of Chongqing Medical University Chongqing China
| | - Wenjing Tang
- Division of Rheumatology and Immunology Children’s Hospital of Chongqing Medical University Chongqing China
| | - Xuemei Chen
- Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical University Chongqing China
- Chongqing Key Laboratory of Child Infection and Immunity Children’s Hospital of Chongqing Medical University Chongqing China
| | - Ting Zeng
- Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical University Chongqing China
- Chongqing Key Laboratory of Child Infection and Immunity Children’s Hospital of Chongqing Medical University Chongqing China
| | - Yanping Wang
- Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical University Chongqing China
- Chongqing Key Laboratory of Child Infection and Immunity Children’s Hospital of Chongqing Medical University Chongqing China
| | - Zhi Chen
- Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical University Chongqing China
- Chongqing Key Laboratory of Child Infection and Immunity Children’s Hospital of Chongqing Medical University Chongqing China
| | - Tao Xu
- Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical University Chongqing China
- Chongqing Key Laboratory of Child Infection and Immunity Children’s Hospital of Chongqing Medical University Chongqing China
| | - Lina Zhou
- Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical University Chongqing China
- Chongqing Key Laboratory of Child Infection and Immunity Children’s Hospital of Chongqing Medical University Chongqing China
| | - Xuemei Tang
- Division of Rheumatology and Immunology Children’s Hospital of Chongqing Medical University Chongqing China
| | - Yunfei An
- Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical University Chongqing China
- Chongqing Key Laboratory of Child Infection and Immunity Children’s Hospital of Chongqing Medical University Chongqing China
- Division of Rheumatology and Immunology Children’s Hospital of Chongqing Medical University Chongqing China
| | - Xiaodong Zhao
- Ministry of Education Key Laboratory of Child Development and Disorders Children’s Hospital of Chongqing Medical University Chongqing China
- Chongqing Key Laboratory of Child Infection and Immunity Children’s Hospital of Chongqing Medical University Chongqing China
- Division of Rheumatology and Immunology Children’s Hospital of Chongqing Medical University Chongqing China
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10
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Flórez-Álvarez L, Hernandez JC, Zapata W. NK Cells in HIV-1 Infection: From Basic Science to Vaccine Strategies. Front Immunol 2018; 9:2290. [PMID: 30386329 PMCID: PMC6199347 DOI: 10.3389/fimmu.2018.02290] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 09/14/2018] [Indexed: 12/12/2022] Open
Abstract
NK cells play a key role in immune response against HIV infection. These cells can destroy infected cells and contribute to adequate and strong adaptive immune responses, by acting on dendritic, T, B, and even epithelial cells. Increased NK cell activity reflected by higher cytotoxic capacity, IFN-γ and chemokines (CCL3, CCL4, and CCL5) production, has been associated with resistance to HIV infection and delayed AIDS progression, demonstrating the importance of these cells in the antiviral response. Recently, a subpopulation of NK cells with adaptive characteristics has been described and associated with lower HIV viremia and control of infection. These evidences, together with some degree of protection shown in vaccine trials based on boosting NK cell activity, suggest that these cells can be a feasible option for new treatment and vaccination strategies to overcome limitations that, classical vaccination approaches, might have for this virus. This review is focus on the NK cells role during the immune response against HIV, including all the effector mechanisms associated to these cells; in addition, changes including phenotypic, functional and frequency modifications during HIV infection will be pointed, highlighting opportunities to vaccine development based in NK cells effector functions.
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Affiliation(s)
- Lizdany Flórez-Álvarez
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia.,Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medellín, Colombia
| | - Juan C Hernandez
- Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medellín, Colombia
| | - Wildeman Zapata
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia.,Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medellín, Colombia
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11
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Mahdavi Siuki M, Fazel Nasab N, Barati E, Nezafat Firizi M, Jalilvand T, Namdar Ahmadabad H. The protective effect of berberine against lipopolysaccharide-induced abortion by modulation of inflammatory/immune responses. Immunopharmacol Immunotoxicol 2018; 40:333-337. [PMID: 30003821 DOI: 10.1080/08923973.2018.1485155] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Berberine is an isoquinoline derivative alkaloid with anti-inflammatory activity. In this study, we investigated the protective effects of berberine in prevention of LPS-induced abortion. MATERIALS AND METHODS On the gestation day (GD) 9.5, the pregnant mice were injected with low, medium, and high doses of berberine or with PBS. After 4 h, berberine or PBS-pretreated mice were injected with LPS. On GD 11.5, blood samples and uterine tissues were collected from treated mice and percentage of abortion and serum levels of NO, TNF-α, IL-10, and IL12p70 were measured by macroscopic examination and sandwich ELISA, respectively. RESULTS Our findings show that mice injected with berberine were resistant to LPS-induced abortion. We also found that this treatment prevents the reduction of IL-10 and the enhancement of NO, TNF-α, and IL-12p70 in LPS-treated pregnant mice. CONCLUSIONS Taken together, our results suggest that berberine as an anti-inflammatory agent has protective effects on LPS-induced abortion by modulation of inflammatory/immune responses.
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Affiliation(s)
- Maryam Mahdavi Siuki
- a Department of Animal Biotechnology, National Institute of Genetic Engineering and Biotechnology , Tehran , Iran
| | - Nafiseh Fazel Nasab
- b Department of English Language , Eghbal Lahoori Institute of Higher Education , Mashhad , Iran
| | - Elham Barati
- c Department of Biology , Payame Noor University of Mashhad , Mashhad , Iran
| | - Maryam Nezafat Firizi
- d Department of Pathobiology and Laboratory Sciences , North Khorasan University of Medical Sciences , Bojnurd , Iran
| | - Tahereh Jalilvand
- e Department of Molecular Science, School of Medicine , North Khorasan University of Medical Sciences , Bojnurd , Iran
| | - Hasan Namdar Ahmadabad
- d Department of Pathobiology and Laboratory Sciences , North Khorasan University of Medical Sciences , Bojnurd , Iran
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12
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Theoretical investigation of the conformational space of baicalin. J Mol Graph Model 2017; 76:181-191. [PMID: 28734206 DOI: 10.1016/j.jmgm.2017.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/05/2017] [Accepted: 07/06/2017] [Indexed: 11/23/2022]
Abstract
Flavonoids are a large group of polyphenolic compounds ubiquitously present in plants. They are important components of human diet. They are recognized as potential drug candidates to be used in the treatment and prevention of a lot of pathological disorders, due to their protective effects. Baicalin (7-glucuronic acid 5, 6-dihydroxyflavone) is one of the main single active constituents isolated from the dried roots of Scutellaria baicalensis Georgi. The great interest on this flavonoid is due to its various pharmacological properties, such as antioxidant, antimicrobial, anti-inflammatory, anticancer and so on, and its high accumulation in the roots of S. baicalensis. The aim of our work was to analyze the geometric and electronic properties of baicalin conformers (BCL), thus performing a complete search on the conformational space of this flavonoid in gas phase and in aqueous solution. The results indicate that the conformational space of baicalin is formed by eight conformers in gas phase and five conformers in aqueous solution optimized at B3LYP/6-311++G** theory level. BCLa2TT and BCLa1TT conformers have low stability in gas phase and very high stability in aqueous solution. This variation is related to a modification in the τ1 angle that represents the relative position of the glucuronide unit respect to the central rings of the flavan nucleus (A and C). This modification was successfully explained by examining the changes in the hydrogen bond (HB) interactions that occur in the region around the hydroxyl group located in position 6 of ring A. Besides, the molecular electrostatic potential (MEP) and frontier molecular orbital (FMO) analyses indicate that BCLa2TT and BCLa1TT conformers are the most favorable conformers for interacting with positively charged species (such as metal ions) in aqueous media (such as biological fluids).
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Peterson CW, Benne C, Polacino P, Kaur J, McAllister CE, Filali-Mouhim A, Obenza W, Pecor TA, Huang ML, Baldessari A, Murnane RD, Woolfrey AE, Jerome KR, Hu SL, Klatt NR, DeRosa S, Sékaly RP, Kiem HP. Loss of immune homeostasis dictates SHIV rebound after stem-cell transplantation. JCI Insight 2017; 2:e91230. [PMID: 28239658 DOI: 10.1172/jci.insight.91230] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The conditioning regimen used as part of the Berlin patient's hematopoietic cell transplant likely contributed to his eradication of HIV infection. We studied the impact of conditioning in simian-human immunodeficiency virus-infected (SHIV-infected) macaques suppressed by combination antiretroviral therapy (cART). The conditioning regimen resulted in a dramatic, but incomplete depletion of CD4+ and CD8+ T cells and CD20+ B cells, increased T cell activation and exhaustion, and a significant loss of SHIV-specific Abs. The disrupted T cell homeostasis and markers of microbial translocation positively correlated with an increased viral rebound after cART interruption. Quantitative viral outgrowth and Tat/rev-induced limiting dilution assays showed that the size of the latent SHIV reservoir did not correlate with viral rebound. These findings identify perturbations of the immune system as a mechanism for the failure of autologous transplantation to eradicate HIV. Thus, transplantation strategies may be improved by incorporating immune modulators to prevent disrupted homeostasis, and gene therapy to protect transplanted cells.
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Affiliation(s)
- Christopher W Peterson
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Clarisse Benne
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Patricia Polacino
- Washington National Primate Research Center, Seattle, Washington, USA
| | - Jasbir Kaur
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Cristina E McAllister
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | - Willi Obenza
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Tiffany A Pecor
- Washington National Primate Research Center, Seattle, Washington, USA
| | - Meei-Li Huang
- Division of Vaccine and Infectious Diseases, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Audrey Baldessari
- Washington National Primate Research Center, Seattle, Washington, USA
| | - Robert D Murnane
- Washington National Primate Research Center, Seattle, Washington, USA
| | - Ann E Woolfrey
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Keith R Jerome
- Division of Vaccine and Infectious Diseases, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Laboratory Medicine
| | - Shiu-Lok Hu
- Washington National Primate Research Center, Seattle, Washington, USA.,Department of Pharmaceutics and
| | - Nichole R Klatt
- Washington National Primate Research Center, Seattle, Washington, USA.,Department of Pharmaceutics and
| | - Stephen DeRosa
- Division of Vaccine and Infectious Diseases, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Rafick P Sékaly
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Hans-Peter Kiem
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA.,Department of Pathology, University of Washington, Seattle, Washington, USA
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