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Arnaiz-Villena A, Juarez I, Vaquero-Yuste C, Lledo T, Martin-Villa JM, Suarez-Trujillo F. Complex Interactions between the Human Major Histocompatibility Complex (MHC) and Microbiota: Their Roles in Disease Pathogenesis and Immune System Regulation. Biomedicines 2024; 12:1928. [PMID: 39200390 PMCID: PMC11352054 DOI: 10.3390/biomedicines12081928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 08/19/2024] [Accepted: 08/19/2024] [Indexed: 09/02/2024] Open
Abstract
The relationship between microbiota and the immune system is complex and characterized by the ways in which microbiota directs immune function interactions, both innate and acquired and also keeps activating the immune system throughout an individual's life. In this respect, the human Major Histocompatibility Complex (MHC, referred to as HLA in humans) plays a crucial role and is also established in self-defense against microbes by presenting microbial-derived peptides to the immune cells. However, this assumption has some unclear aspects that should be investigated. For example, how is the microbiota shaped by microbe species diversity, quantity and functions of the immune system, as well as the role and molecular mechanisms of the HLA complex during this process. There are autoimmune diseases related to both HLA and specific microbiota changes or alterations, many of which are mentioned in the present review. In addition, the HLA peptide presenting function should be put in a framework together with its linkage to diseases and also with HLA compatibility necessary for transplants to be successful. These are still quite an enigmatically statistical and phenomenological approach, but no firm pathogenic mechanisms have been described; thus, HLA's real functioning is still to be fully unveiled. After many years of HLA single-genes studies, firm pathogenesis mechanisms underlying disease linkage have been discovered. Finally, microbiota has been defined as conformed by bacteria, protozoa, archaea, fungi, and viruses; notwithstanding, endogenous viral sequences integrated into the human genome and other viral particles (obelisks) recently found in the digestive mucosa should be taken into account because they may influence both the microbiome and the immune system and their interactions. In this context, we propose to integrate these microbial-genetic particle components into the microbiome concept and designate it as "microgenobiota".
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Affiliation(s)
- Antonio Arnaiz-Villena
- Department of Immunology, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (I.J.); (C.V.-Y.); (T.L.); (J.M.M.-V.); (F.S.-T.)
- Instituto de Investigacion Sanitaria Gegorio Marañon, 28009 Madrid, Spain
| | - Ignacio Juarez
- Department of Immunology, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (I.J.); (C.V.-Y.); (T.L.); (J.M.M.-V.); (F.S.-T.)
- Instituto de Investigacion Sanitaria Gegorio Marañon, 28009 Madrid, Spain
| | - Christian Vaquero-Yuste
- Department of Immunology, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (I.J.); (C.V.-Y.); (T.L.); (J.M.M.-V.); (F.S.-T.)
- Instituto de Investigacion Sanitaria Gegorio Marañon, 28009 Madrid, Spain
| | - Tomás Lledo
- Department of Immunology, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (I.J.); (C.V.-Y.); (T.L.); (J.M.M.-V.); (F.S.-T.)
- Instituto de Investigacion Sanitaria Gegorio Marañon, 28009 Madrid, Spain
| | - José Manuel Martin-Villa
- Department of Immunology, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (I.J.); (C.V.-Y.); (T.L.); (J.M.M.-V.); (F.S.-T.)
- Instituto de Investigacion Sanitaria Gegorio Marañon, 28009 Madrid, Spain
| | - Fabio Suarez-Trujillo
- Department of Immunology, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (I.J.); (C.V.-Y.); (T.L.); (J.M.M.-V.); (F.S.-T.)
- Instituto de Investigacion Sanitaria Gegorio Marañon, 28009 Madrid, Spain
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Murata K, Harayama K, Shimoda M, Niimura M, Wakao M, Suda Y, Moroishi T, Shinchi H. Improvement of the Nuclease Resistance and Immunostimulatory Activity of CpG Oligodeoxynucleotides by Conjugation to Sugar-Immobilized Gold Nanoparticles. Bioconjug Chem 2024; 35:804-815. [PMID: 38718344 DOI: 10.1021/acs.bioconjchem.4c00145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Adjuvants are essential substances for vaccines and immunotherapies that enhance antigen-specific immune responses. Single-stranded oligodeoxynucleotides containing an unmethylated CpG motif (CpG ODNs) are agonistic ligands for toll-like receptor 9 that initiate an innate immune response. They represent promising adjuvants for antiviral and antitumor immunotherapies; however, CpG ODNs have some limitations, such as poor nuclease resistance and low cell membrane permeability. Therefore, an effective formulation is needed to improve the nuclease resistance and immunostimulatory effects of CpG ODNs. Previously, we demonstrated the selective delivery of a small molecule toll-like receptor 7 ligand to immune cells through sugar-binding receptors using sugar-immobilized gold nanoparticles (SGNPs), which significantly enhanced the potency of the ligand. In this study, we examined SGNPs as carriers for partially phosphorothioated A-type CpG ODN (D35) and an entirely phosphorothioated B-type CpG ODN (K3) and evaluated the functionality of the sugar moiety on SGNPs immobilized with CpG ODN. SGNPs immobilized with D35 (D35-SGNPs) exhibited improved nuclease resistance and the in vitro and in vivo potency was significantly higher compared with that of unconjugated D35. Furthermore, the sugar structure on the GNPs was a significant factor in enhancing the cell internalization ability, and enhanced intracellular delivery of D35 resulted in improving the potencies of the A-type CpG ODN, D35. SGNPs immobilized with K3 (K3-SGNPs) exhibited significantly higher induction activities for both humoral and cellular immunity compared with unconjugated K3 and D35-SGNPs. On the other hand, sugar structure on K3-SGNPs did not affect the immunostimulatory effects. These results indicate that the sugar moiety on K3-SGNPs primarily functions as a hydrophilic dispersant for GNPs and the formulation of K3 to SGNPs contributes to improving the immunostimulatory activity of K3. Because our CpG ODN-SGNPs have superior induction activities for antigen-specific T-cell mediated immune responses, they may be effective adjuvants for vaccines and immunotherapies.
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Affiliation(s)
- Koki Murata
- Department of Engineering, Chemistry and Biotechnology program, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Kai Harayama
- Department of Engineering, Chemistry and Biotechnology program, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Mayuko Shimoda
- Department of Molecular and Medical Pharmacology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Mayumi Niimura
- Department of Molecular and Medical Pharmacology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Masahiro Wakao
- Department of Engineering, Chemistry and Biotechnology program, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Yasuo Suda
- Collaborative Research Laboratory on Glyco-nanotechnology, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Toshiro Moroishi
- Department of Molecular and Medical Pharmacology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan
- Center for Metabolic Regulation of Healthy Aging, Faculty of Life Science, Kumamoto University, Kumamoto 860-8556, Japan
| | - Hiroyuki Shinchi
- Department of Engineering, Chemistry and Biotechnology program, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
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Guo J, Si G, Si F. Treg cells as a protective factor for Hashimoto`s thyroiditis: a Mendelian randomization study. Front Endocrinol (Lausanne) 2024; 15:1347695. [PMID: 38524638 PMCID: PMC10957564 DOI: 10.3389/fendo.2024.1347695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/26/2024] [Indexed: 03/26/2024] Open
Abstract
Background and objectives Hashimoto's thyroiditis (HT), a chronic autoimmune disorder impacting thyroid function, is a growing public health concern. The relationship between Treg cells and HT has been extensively studied, with Treg cells considered crucial in suppressing HT progression. However, these studies have mainly been observational, limiting our understanding of Treg cells' impact on HT risk. Leveraging large datasets, we utilized Mendelian randomization (MR) analysis to examine the causal association between Treg cell biomarkers and HT, providing additional validation for these relationships. Methods Comprehensive two-sample Mendelian randomization analysis was performed to determine the causal association between Treg cells signatures and HT in this study. Based on publicly available genetic data, we explored causal associations between 165 Treg cells signatures and HT risk. Results The European cohort study has identified five Treg cell phenotypes that causally protect against HT risk. Resting Treg %CD4 (OR = 0.975, 95% CI = 0.954~0.998, P = 0.030); CD4 on resting Treg (OR = 0.938, 95% CI = 0.882~0.997, P = 0.041; CD28- CD8dim %CD8dim (OR = 0.983, 95% CI = 0.969~0.998, P = 0.030); CD25 on CD39+ resting Treg (OR = 0.926, 95% CI = 0.864~0.991, P = 0.026); 5) CD28 on activated & secreting Treg (OR = 0.969, 95% CI = 0.942~0.996, P = 0.025). The Asian cohort study has identified four Treg cell phenotypes negatively correlated with the risk of HT. CD25hi %T cell (OR = 0.635, 95% CI = 0.473~852, P = 0.002); CD4 Treg %CD4 (OR = 0.829, 95% CI = 0.687~1.000, P = 0.050); CD127-CD8br %T cell (OR = 0.463, 95% CI =0.311~0.687, P< 0.001); CD3 on resting Treg (OR = 0.786, 95% CI = 0.621~0.994, P = 0.044). Conclusion Our study has demonstrated the close connection between Treg cells and HT by genetic means, thus providing foundational basis for future research.
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Affiliation(s)
- Jinzhou Guo
- Academy of Zhongjing, Henan University of Chinese Medicine, Zhengzhou, China
- Laboratory of Traditional Chinese Medicine (TCM) Syndrome and Prescription Signaling, Academy of Zhongjing, Zhengzhou, China
- Henan Key Laboratory of Traditional Chinese Medicine (TCM) Syndrome and Prescription Signaling, Henan International Joint, Zhengzhou, China
| | - Gao Si
- Department of Orthopedic, Peking University Third Hospital, Beijing, China
| | - Fuchun Si
- Academy of Zhongjing, Henan University of Chinese Medicine, Zhengzhou, China
- Laboratory of Traditional Chinese Medicine (TCM) Syndrome and Prescription Signaling, Academy of Zhongjing, Zhengzhou, China
- Henan Key Laboratory of Traditional Chinese Medicine (TCM) Syndrome and Prescription Signaling, Henan International Joint, Zhengzhou, China
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Zimmerman DH, Szekanecz Z, Markovics A, Rosenthal KS, Carambula RE, Mikecz K. Current status of immunological therapies for rheumatoid arthritis with a focus on antigen-specific therapeutic vaccines. Front Immunol 2024; 15:1334281. [PMID: 38510240 PMCID: PMC10951376 DOI: 10.3389/fimmu.2024.1334281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/08/2024] [Indexed: 03/22/2024] Open
Abstract
Rheumatoid arthritis (RA) is recognized as an autoimmune joint disease driven by T cell responses to self (or modified self or microbial mimic) antigens that trigger and aggravate the inflammatory condition. Newer treatments of RA employ monoclonal antibodies or recombinant receptors against cytokines or immune cell receptors as well as small-molecule Janus kinase (JAK) inhibitors to systemically ablate the cytokine or cellular responses that fuel inflammation. Unlike these treatments, a therapeutic vaccine, such as CEL-4000, helps balance adaptive immune homeostasis by promoting antigen-specific regulatory rather than inflammatory responses, and hence modulates the immunopathological course of RA. In this review, we discuss the current and proposed therapeutic products for RA, with an emphasis on antigen-specific therapeutic vaccine approaches to the treatment of the disease. As an example, we describe published results of the beneficial effects of CEL-4000 vaccine on animal models of RA. We also make a recommendation for the design of appropriate clinical studies for these newest therapeutic approaches, using the CEL-4000 vaccine as an example. Unlike vaccines that create or boost a new immune response, the clinical success of an immunomodulatory therapeutic vaccine for RA lies in its ability to redirect autoreactive pro-inflammatory memory T cells towards rebalancing the "runaway" immune/inflammatory responses that characterize the disease. Human trials of such a therapy will require alternative approaches in clinical trial design and implementation for determining safety, toxicity, and efficacy. These approaches include adaptive design (such as the Bayesian optimal design (BOIN), currently employed in oncological clinical studies), and the use of disease-related biomarkers as indicators of treatment success.
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Affiliation(s)
| | - Zoltan Szekanecz
- Department of Rheumatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Adrienn Markovics
- Department of Orthopedic Surgery and Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, United States
| | - Kenneth S Rosenthal
- Department of Basic Sciences, Augusta University/University of Georgia Medical Partnership, Athens, GA, United States
| | | | - Katalin Mikecz
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, United States
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Afsar A, Chen M, Xuan Z, Zhang L. A glance through the effects of CD4 + T cells, CD8 + T cells, and cytokines on Alzheimer's disease. Comput Struct Biotechnol J 2023; 21:5662-5675. [PMID: 38053545 PMCID: PMC10694609 DOI: 10.1016/j.csbj.2023.10.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/31/2023] [Accepted: 10/31/2023] [Indexed: 12/07/2023] Open
Abstract
Alzheimer's disease (AD) is the most common form of dementia. Unfortunately, despite numerous studies, an effective treatment for AD has not yet been established. There is remarkable evidence indicating that the innate immune mechanism and adaptive immune response play significant roles in the pathogenesis of AD. Several studies have reported changes in CD8+ and CD4+ T cells in AD patients. This mini-review article discusses the potential contribution of CD4+ and CD8+ T cells reactivity to amyloid β (Aβ) protein in individuals with AD. Moreover, this mini-review examines the potential associations between T cells, heme oxygenase (HO), and impaired mitochondria in the context of AD. While current mathematical models of AD have not extensively addressed the inclusion of CD4+ and CD8+ T cells, there exist models that can be extended to consider AD as an autoimmune disease involving these T cell types. Additionally, the mini-review covers recent research that has investigated the utilization of machine learning models, considering the impact of CD4+ and CD8+ T cells.
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Affiliation(s)
- Atefeh Afsar
- Department of Biological Sciences, University of Texas at Dallas, Richardson, TX, USA
| | - Min Chen
- Department of Mathematical Sciences, University of Texas at Dallas, Richardson, TX, USA
| | - Zhenyu Xuan
- Department of Biological Sciences, University of Texas at Dallas, Richardson, TX, USA
| | - Li Zhang
- Department of Biological Sciences, University of Texas at Dallas, Richardson, TX, USA
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Wong-Benito V, de Rijke J, Dixon B. Antigen presentation in vertebrates: Structural and functional aspects. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 144:104702. [PMID: 37116963 DOI: 10.1016/j.dci.2023.104702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/20/2023] [Accepted: 03/29/2023] [Indexed: 06/05/2023]
Abstract
Antigen presentation is a key process of the immune system and is responsible for the activation of T cells. The main characters are the major histocompatibility complex class I (MHC-I) and class II (MHC-II) molecules, and accessory proteins that act as chaperones for these glycoproteins. Current knowledge of this process and also the elucidation of the structural features of these proteins, has been extensively reviewed in humans. Unfortunately, this is not the case for non-human species, wherein the function and structural characteristic of the antigen presentation proteins is far from being understood. The majority of previous studies in non-human species, especially in teleost fish and lower vertebrates, are limited to the transcriptomic level, which leads to gaps in the knowledge about the functional process of antigen presentation in these species. This review summarizes what is known so far about antigen presentation pathways in vertebrates from a structural and functional perspective. The focus is not only on the MHC receptors, but also, on the forgotten characters of these pathways such as the proteins of the peptide loading complex, and the MHC-II chaperone invariant chain.
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Affiliation(s)
| | - Jill de Rijke
- Department of Biology, University of Waterloo, Canada
| | - Brian Dixon
- Department of Biology, University of Waterloo, Canada.
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Miyamae J, Okano M, Katakura F, Kulski JK, Moritomo T, Shiina T. Large-Scale Polymorphism Analysis of Dog Leukocyte Antigen Class I and Class II Genes ( DLA-88, DLA-12/88L and DLA-DRB1) and Comparison of the Haplotype Diversity between Breeds in Japan. Cells 2023; 12:809. [PMID: 36899945 PMCID: PMC10001263 DOI: 10.3390/cells12050809] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/21/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Polymorphisms of canine leukocyte antigen (DLA) class I (DLA-88 and DLA-12/88L) and class II (DLA-DRB1) genes are important for disease susceptibility studies, but information on the genetic diversity among dog breeds is still lacking. To better elucidate the polymorphism and genetic diversity between breeds, we genotyped DLA-88, DLA-12/88L, and DLA-DRB1 loci using 829 dogs of 59 breeds in Japan. Genotyping by Sanger sequencing identified 89, 43, and 61 alleles in DLA-88, DLA-12/88L, and DLA-DRB1 loci, respectively, and a total of 131 DLA-88-DLA-12/88L-DLA-DRB1 haplotypes (88-12/88L-DRB1) were detected more than once. Of the 829 dogs, 198 were homozygotes for one of the 52 different 88-12/88L-DRB1 haplotypes (homozygosity rate: 23.8%). Statistical modeling suggests that 90% of the DLA homozygotes or heterozygotes with one or other of the 52 different 88-12/88L-DRB1 haplotypes within somatic stem cell lines would benefit graft outcome after 88-12/88L-DRB1-matched transplantation. As previously reported for DLA class II haplotypes, the diversity of 88-12/88L-DRB1 haplotypes varied remarkably between breeds but was relatively conserved within most breeds. Therefore, the genetic characteristics of high DLA homozygosity rate and poor DLA diversity within a breed are useful for transplantation therapy, but they may affect biological fitness as homozygosity progresses.
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Affiliation(s)
- Jiro Miyamae
- Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoino-oka, Imabari 794-8555, Japan
| | - Masaharu Okano
- Department of Legal Medicine, Nihon University School of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan
| | - Fumihiko Katakura
- Department of Veterinary Medicine, College of Bioresource Science, Nihon University, 1866 Kameino, Fujisawa 252-0880, Japan
| | - Jerzy K. Kulski
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1143, Japan
| | - Tadaaki Moritomo
- Department of Veterinary Medicine, College of Bioresource Science, Nihon University, 1866 Kameino, Fujisawa 252-0880, Japan
| | - Takashi Shiina
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1143, Japan
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Li Z, Jiang B, Zhong Z, Cao J, Li H, Wang C, Li A. Skin transcriptomic analysis and immune-related gene expression of golden pompano (Trachinotus ovatus) after Amyloodinium ocellatum infection. FISH & SHELLFISH IMMUNOLOGY 2022; 128:188-195. [PMID: 35870749 DOI: 10.1016/j.fsi.2022.07.052] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 07/11/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
Amyloodiniosis is a severe disease of marine and brackish water fish caused by Amyloodinium ocellatum. Golden pompano (Trachinotus ovatus) is often repeatedly infected by A. ocellatum, leading to extensive mortality. However, little is known about the immune response mechanisms of the T. ovatus following reinfection with A. ocellatum. In this study, an extensive analysis at the transcriptome level of T. ovatus skin was carried out at 24 h post-infection by A. ocellatum. During the transcriptomic analysis, 1367 differentially expressed genes (DEGs) in the skin of T. ovatus under A. ocellatum infection and control conditions were obtained. In Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway annotated analyses, the DEGs were significantly enriched in the immune-related pathways. To better understand the immune-related gene expression dynamics, a quantitative reverse transcription-polymerase chain reaction (RT-qPCR) was used to assess the primary and secondary infection groups of T. ovatus at different stages (3 h, 12 h, 24 h, 48 h and, 72 h post-infection) of infection with A.ocellatum. The results showed that innate immunity-related genes [interleukin (IL-8), chemokine ligand 3 (CCL3), toll-like receptor 7 (TLR7), and G-type lysosome (LZM g)] and adaptive immunity-related gene [major histocompatibility complex (MHC) alpha antigen I and MHC alpha antigen II] expression levels in the primary and secondary infection groups were significantly increased compared to the control group. The expression of MHC I and MHC II was more rapidly upregulated in the secondary infection group compared with the primary infection group after A.ocellatum infection. However, no significant differences of A.ocellatum load were observed in primary and secondary infection groups. In addition, the serum of the primary infection group had significantly higher concentrations of triglyceride (TG), higher alanine transaminase (ALT), aspartate transaminase (AST), and lactate dehydrogenase (LDH) activities than the control group. This study contributes to understanding the defense mechanisms in fish skin against ectoparasite infection.
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Affiliation(s)
- Zhicheng Li
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China
| | - Biao Jiang
- Innovative Institute of Animal Healthy Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510222, Guangdong, China
| | - Zhihong Zhong
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China
| | - Jizhen Cao
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China
| | - Han Li
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China
| | - Chenxi Wang
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China
| | - Anxing Li
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China.
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Kasai M, Omae Y, Khor SS, Shibata A, Hoshino A, Mizuguchi M, Tokunaga K. Protective association of HLA-DPB1*04:01:01 with acute encephalopathy with biphasic seizures and late reduced diffusion identified by HLA imputation. Genes Immun 2022; 23:123-128. [PMID: 35422513 DOI: 10.1038/s41435-022-00170-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 11/09/2022]
Abstract
Acute encephalopathy with biphasic seizures and late reduced diffusion (AESD) is a severe syndrome of acute encephalopathy that affects infants and young children. AESD is a polygenic disorder preceded by common viral infections with high fever. We conducted an association study of human leukocyte antigen (HLA) regions with AESD using HLA imputation. SNP genotyping was performed on 254 Japanese patients with AESD and 799 healthy controls. We conducted 3-field HLA imputation for 14 HLA genes based on Japanese-specific references using data from our previous genome-wide association study. After quality control, 208 patients and 737 controls were included in the analysis of HLA alleles. We then compared the carrier frequencies of HLA alleles and haplotypes between the patients and controls. HLA-DPB1*04:01:01 showed a significant association with AESD, exerting a protective effect against the disease (p = 0.0053, pcorrected = 0.042, odds ratio = 0.43, 95% confidence interval = 0.21-0.80). The allele frequency of HLA-DPB1*04:01:01 was lower in East Asians than in Caucasians, which may partially account for the higher incidence of AESD in the Japanese population. The present results demonstrate the importance of fine-mapping of the HLA region to investigate disease susceptibilities and elucidate the pathogenesis of AESD.
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Affiliation(s)
- Mariko Kasai
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan. .,Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Yosuke Omae
- Genome Medical Science Project, National Center for Global Health and Medicine, Tokyo, Japan
| | - Seik-Soon Khor
- Genome Medical Science Project, National Center for Global Health and Medicine, Tokyo, Japan
| | - Akiko Shibata
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ai Hoshino
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masashi Mizuguchi
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Pediatrics, National Rehabilitation Center for Children with Disabilities, Tokyo, Japan
| | - Katsushi Tokunaga
- Genome Medical Science Project, National Center for Global Health and Medicine, Tokyo, Japan
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Yin Z, Nie H, Jiang K, Yan X. Molecular Mechanisms Underlying Vibrio Tolerance in Ruditapes philippinarum Revealed by Comparative Transcriptome Profiling. Front Immunol 2022; 13:879337. [PMID: 35615362 PMCID: PMC9125321 DOI: 10.3389/fimmu.2022.879337] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 04/05/2022] [Indexed: 12/13/2022] Open
Abstract
The clam Ruditapes philippinarum is an important species in the marine aquaculture industry in China. However, in recent years, the aquaculture of R. philippinarum has been negatively impacted by various bacterial pathogens. In this study, the transcriptome libraries of R. philippinarum showing different levels of resistance to challenge with Vibrio anguillarum were constructed and RNA-seq was performed using the Illumina sequencing platform. Host immune factors were identified that responded to V. anguillarum infection, including C-type lectin domain, glutathione S-transferase 9, lysozyme, methyltransferase FkbM domain, heat shock 70 kDa protein, Ras-like GTP-binding protein RHO, C1q, F-box and BTB/POZ domain protein zf-C2H2. Ten genes were selected and verified by RT-qPCR, and nine of the gene expression results were consistent with those of RNA-seq. The lectin gene in the phagosome pathway was expressed at a significantly higher level after V. anguillarum infection, which might indicate the role of lectin in the immune response to V. anguillarum. Comparing the results from R. philippinarum resistant and nonresistant to V. anguillarum increases our understanding of the resistant genes and key pathways related to Vibrio challenge in this species. The results obtained here provide a reference for future immunological research focusing on the response of R. philippinarum to V. anguillarum infection.
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Affiliation(s)
- Zhihui Yin
- Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Hongtao Nie
- Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Kunyin Jiang
- Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Xiwu Yan
- Engineering and Technology Research Center of Shellfish Breeding in Liaoning Province, College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
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11
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Genome-wide pharmacogenetics of anti-drug antibody response to bococizumab highlights key residues in HLA DRB1 and DQB1. Sci Rep 2022; 12:4266. [PMID: 35277540 PMCID: PMC8917227 DOI: 10.1038/s41598-022-07997-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/14/2022] [Indexed: 11/13/2022] Open
Abstract
In this largest to-date genetic analysis of anti-drug antibody (ADA) response to a therapeutic monoclonal antibody (MAb), genome-wide association was performed for five measures of ADA status among 8844 individuals randomized to bococizumab, which targets PCSK9 for LDL-C lowering and cardiovascular protection. Index associations prioritized specific amino acid substitutions at the DRB1 and DQB1 MHC class II genes rather than canonical haplotypes. Two clusters of missense variants at DRB1 were associated with general ADA measures (residues 9, 11, 13; and 96, 112, 120, 180) and a third cluster of missense variants in DQB1 was associated with ADA measures including neutralizing antibody (NAb) titers (residues 66, 67, 71, 74, 75). The structural disposition of the missense substitutions implicates peptide antigen binding and CD4 effector function, mechanisms that are potentially generalizable to other therapeutic mAbs. Clinicaltrials.gov: NCT01968954, NCT01968967, NCT01968980, NCT01975376, NCT01975389, NCT02100514.
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12
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Miyamae J, Okano M, Nishiya K, Katakura F, Kulski JK, Moritomo T, Shiina T. Haplotype structures and polymorphisms of dog leukocyte antigen (DLA) class I loci shaped by intralocus and interlocus recombination events. Immunogenetics 2022; 74:245-259. [PMID: 34993565 DOI: 10.1007/s00251-021-01234-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 11/10/2021] [Indexed: 11/26/2022]
Abstract
The dog leukocyte antigen (DLA) class I genomic region is located on chromosome 12, and the class I genomic region is composed of at least two distinct haplotypic gene structures, DLA-88-DLA-12 and DLA-88-DLA-88L. However, detailed information of the genomic differences among DLA-88, DLA-12, and DLA-88L are still lacking at the full-length gene level, and therefore, DLA allelic sequences classified for each of these loci are limited in number so far. In this study, we determined the DNA sequence of a 95-kb DLA class I genomic region including DLA-88, DLA-12/88L, and DLA-64 with three DLA homozygous dogs and of 37 full-length allelic gene sequences for DLA-88 and DLA-12/88L loci in 26 DLA class I homozygous dogs. Nucleotide diversity profiles of the 95-kb regions and sequence identity scores of the allelic sequences suggested that DLA-88L is a hybrid gene generated by interlocus and/or intralocus gene conversion between DLA-88 and DLA-12. The putative minimum conversion tract was estimated to be at least an 850-bp segment in length located from the 5´flanking untranslated region to the end of intron 2. In addition, at least one DLA-12 allele (DLA-12*004:01) was newly generated by interlocus gene conversion. In conclusion, the analysis for the occurrence of gene conversion within the dog DLA class I region revealed intralocus gene conversion tracts in 17 of 27 DLA-88 alleles and two of 10 DLA-12 alleles, suggesting that intralocus gene conversion has played an important role in expanding DLA allelic variations.
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Affiliation(s)
- Jiro Miyamae
- Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoino-oka, Imabari, Ehime, 794-8555, Japan.
| | - Masaharu Okano
- Department of Legal Medicine, Nihon University School of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan
| | - Kohei Nishiya
- Department of Veterinary Medicine, College of Bioresource Science, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, 252-0880, Japan
| | - Fumihiko Katakura
- Department of Veterinary Medicine, College of Bioresource Science, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, 252-0880, Japan
| | - Jerzy K Kulski
- Discipline of Psychiatry, Medical School, The University of Western Australia, Crawley, WA, Australia
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1143, Japan
| | - Tadaaki Moritomo
- Department of Veterinary Medicine, College of Bioresource Science, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, 252-0880, Japan
| | - Takashi Shiina
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1143, Japan
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13
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Qi J, Liu X, Yan P, He S, Lin Y, Huang Z, Zhang S, Xie S, Li Y, Lu X, Wu Y, Zhou Y, Yuan J, Cai T, Zheng X, Ding Y, Yang W. Analysis of Immune Landscape Reveals Prognostic Significance of Cytotoxic CD4 + T Cells in the Central Region of pMMR CRC. Front Oncol 2021; 11:724232. [PMID: 34631551 PMCID: PMC8493090 DOI: 10.3389/fonc.2021.724232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/06/2021] [Indexed: 12/22/2022] Open
Abstract
Background Mismatch repair proficient colorectal cancer (pMMR CRC) lacks effective treatments and has a poor prognosis, which can be attributed to the complexity of tumor microenvironment. The coordinated function of immune cells is vital to anti-tumor immunity. However, the spatial characteristics of immune cells in the pMMR CRC immune microenvironment and their relationship with clinical prognosis are not fully understood. Meanwhile, the immune modulatory effect of neoadjuvant chemotherapy (NCT), which is the first-line treatment of pMMR CRC, needs further investigation. Therefore, this study aims to explore the spatial dynamics of immune cells and its prognostic value in pMMR CRC. Methods We analyzed the various immune cells in formalin-fixed, paraffin-embedded tumor tissues which were collected from 77 patients with stage II/III of pMMR CRC, including 39 non-NCT treated and 38 NCT treated patients. We used the optimized multiplex immunohistochemistry (mIHC) to identify and quantify the density, type and location of immune cells in pMMR CRC. Multivariate survival analysis was performed to assess the relationship of immune profiles and clinical prognosis of pMMR CRC patients. Results The densities of most T cell subsets, B cells and macrophages were higher in the central region of the pMMR CRC than in the invasion margin. Tumor infiltrating lymphocytes (TILs), especially the infiltration of CD4+ GzmB+ T cells in the central region of the tumor was identified to be positively correlated with the prognosis of the patients. Multivariate analysis confirmed that CD4+ GzmB+ T cells population was an independent predictor of disease-free survival (DFS) in non-NCT group. Meanwhile, NCT enhanced the infiltration of CD4+ GzmB+ T cells in the central region of the pMMR CRC, which was also identified as an independent protective factor of overall survival (OS) and DFS in NCT group. Conclusion We demonstrated that the level of CD4+ GzmB+ T cells located in the center of tumor could provide great prognostic value for pMMR CRC patients. And the application of neoadjuvant chemotherapy further improves the infiltration of CD4+ GzmB+ T cells in the central compartment. Further studies into the application of CD4+ GzmB+ T cells in tumor immunotherapy are needed.
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Affiliation(s)
- Jingwen Qi
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
| | - Xiaoyan Liu
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
| | - Peian Yan
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
| | - Shangwen He
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Yuhao Lin
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Zhiwei Huang
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Shenyan Zhang
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
| | - Siyu Xie
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
| | - Yanfeng Li
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
| | - Xiaofei Lu
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
| | - Yingjun Wu
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
| | - Yangshu Zhou
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
| | - Juanjuan Yuan
- Research Department of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Ting Cai
- Research Department of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiaojun Zheng
- Research Department of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yanqing Ding
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
| | - Wei Yang
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Oncologic Pathology, Southern Medical University, Guangzhou, China
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14
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Li T, Li R, Zhang T, Zhang H, Song X, Zhai X, Wang J, Xing B, Hou X, Wei L. Identification, cloning, and characterization of Cherry Valley duck CD4 and its antiviral immune responses. Poult Sci 2021; 100:101262. [PMID: 34273645 PMCID: PMC8287243 DOI: 10.1016/j.psj.2021.101262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/11/2021] [Accepted: 05/12/2021] [Indexed: 11/19/2022] Open
Abstract
CD4 protein is a single chain transmembrane glycoprotein and has a broad functionality beyond cell-mediated immunity. In this study, we cloned the full-length coding sequence (CDS) of duck CD4 (duCD4) and analyzed its sequence and structure, and expression levels in several tissues. It consists of 1,449 nucleotides and encodes a 482 amino acid protein. The putative protein of duCD4 consisted of an N-terminal signal peptide, three immunoglobulins and one immunoglobulins-like domain in its central, one terminal transmembrane region, and a C-terminal domain of the CD4 T cell receptor. The duCD4 also has the typical signature “CXC” of CD4s. The multiple sequence alignment suggests duCD4 has four potential N-glycosylation sites and the phylogenetic analysis suggests duCD4 shares greater similarity with avian than other vertebrates. Quantitative real-time PCR analysis showed that duCD4 mRNA transcripts are widely distributed in the healthy Cherry Valley duck, and the highest level in the thymus. During the virus infection, the obvious change of duCD4 expression was observed in the spleen, lung and brain, which suggesting that duCD4 could be involved in the host's immune response to multiple types of viruses. Our research studied the characterization, tissue distribution, and antiviral immune responses of duCD4.
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Affiliation(s)
- Tianxu Li
- Sino-German Cooperative Research Centre for Zoonosis of Animal Origin of Shandong Province, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Rong Li
- Sino-German Cooperative Research Centre for Zoonosis of Animal Origin of Shandong Province, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; College of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China
| | - Tingting Zhang
- Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, College of Basic Medical Sciences, Shandong First Medical University, Tai'an City, Shandong Province 271000, China
| | - Huihui Zhang
- Sino-German Cooperative Research Centre for Zoonosis of Animal Origin of Shandong Province, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Xingdong Song
- Sino-German Cooperative Research Centre for Zoonosis of Animal Origin of Shandong Province, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Xinyu Zhai
- Sino-German Cooperative Research Centre for Zoonosis of Animal Origin of Shandong Province, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Jinchao Wang
- Sino-German Cooperative Research Centre for Zoonosis of Animal Origin of Shandong Province, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Bin Xing
- Sino-German Cooperative Research Centre for Zoonosis of Animal Origin of Shandong Province, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Xiaolan Hou
- Sino-German Cooperative Research Centre for Zoonosis of Animal Origin of Shandong Province, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China
| | - Liangmeng Wei
- Sino-German Cooperative Research Centre for Zoonosis of Animal Origin of Shandong Province, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an City, Shandong Province 271018, China; Collaborative Innovation Center for the Origin and Control of Emerging Infectious Diseases, College of Basic Medical Sciences, Shandong First Medical University, Tai'an City, Shandong Province 271000, China.
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15
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Vaccination by Two DerG LEAPS Conjugates Incorporating Distinct Proteoglycan (PG, Aggrecan) Epitopes Provides Therapy by Different Immune Mechanisms in a Mouse Model of Rheumatoid Arthritis. Vaccines (Basel) 2021; 9:vaccines9050448. [PMID: 34063326 PMCID: PMC8147650 DOI: 10.3390/vaccines9050448] [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: 03/15/2021] [Revised: 04/14/2021] [Accepted: 04/27/2021] [Indexed: 12/15/2022] Open
Abstract
Rheumatoid arthritis (RA) can be initiated and driven by immune responses to multiple antigenic epitopes including those in cartilage proteoglycan (PG, aggrecan) and type II collagen. RA is driven by T helper 1 (Th1) or Th17 pro-inflammatory T cell responses. LEAPS (Ligand Epitope Antigen Presentation System) DerG peptide conjugate vaccines were prepared using epitopes from PG that elicit immune responses in RA patients: epitope PG70 (DerG-PG70, also designated CEL-4000) and the citrullinated form of another epitope (PG275Cit). The LEAPS peptides were administered alone or together in Seppic ISA51vg adjuvant to mice with PG G1 domain-induced arthritis (GIA), a mouse model of RA. Each of these LEAPS peptides and the combination modulated the inflammatory response and stopped the progression of arthritis in the GIA mouse model. Despite having a therapeutic effect, the DerG-PG275Cit vaccine did not elicit significant antibody responses, whereas DerG-PG70 (alone or with DerG-PG275Cit) induced both therapy and antibodies. Spleen T cells from GIA mice, vaccinated with the DerG LEAPS peptides, preferentially produced anti-inflammatory (IL-4 and IL-10) rather than pro-inflammatory (IFN-γ or IL-17) cytokines in culture. Similarly, cytokines secreted by CD4+ cells of unvaccinated GIA mice, differentiated in vitro to Th2 cells and treated with either or both DerG vaccine peptides, exhibited an anti-inflammatory (IL-4, IL-10) profile. These results suggest that the two peptides elicit different therapeutic immune responses by the immunomodulation of disease-promoting pro-inflammatory responses and that the combination of the two LEAPS conjugates may provide broader epitope coverage and, in some cases, greater efficacy than either conjugate alone.
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16
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Abstract
Odors may be pleasant or unpleasant and in practice, pleasant odors are attractive while unpleasant odors are repellent. However, an odor that is noxious to one species may be attractive to another. Plants, predators, and pathogens may enhance their transmission by manipulating these signals. This may be especially significant when odors attract arthropod disease vectors. Odor detection may also be important in small prey species for evasion of macropredators such as large carnivores. Conversely, pleasant odors may identify family members, parents, or sexual partners. They may also generate signals of good health or fitness and contribute to the process of mate selection. In this review, we seek to integrate these odor-driven processes into a coherent pattern of behaviors that serve to complement the innate and adaptive immune systems. It may be considered the 'behavioral immune system'.
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17
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Wang Y, Wang J, Zhu D, Wang Y, Qing G, Zhang Y, Liu X, Liang XJ. Effect of physicochemical properties on in vivo fate of nanoparticle-based cancer immunotherapies. Acta Pharm Sin B 2021; 11:886-902. [PMID: 33996405 PMCID: PMC8105773 DOI: 10.1016/j.apsb.2021.03.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/25/2020] [Accepted: 01/15/2021] [Indexed: 12/14/2022] Open
Abstract
Current advances of immunotherapy have greatly changed the way of cancer treatment. At the same time, a great number of nanoparticle-based cancer immunotherapies (NBCIs) have also been explored to elicit potent immune responses against tumors. However, few NBCIs are nearly in the clinical trial which is mainly ascribed to a lack understanding of in vivo fate of nanoparticles (NPs) for cancer immunotherapy. NPs for cancer immunotherapy mainly target the immune organs or immune cells to enable efficient antitumor immune responses. The physicochemical properties of NPs including size, shape, elasticity and surface properties directly affect their interaction with immune systems as well as their in vivo fate and therapeutic effect. Hence, systematic analysis of the physicochemical properties and their effect on in vivo fate is urgently needed. In this review, we first recapitulate the fundamentals for the in vivo fate of NBCIs including physio-anatomical features of lymphatic system and strategies to modulate immune responses. Moreover, we highlight the effect of physicochemical properties on their in vivo fate including lymph nodes (LNs) drainage, cellular uptake and intracellular transfer. Challenges and opportunities for rational design of NPs for cancer immunotherapy are also discussed in detail.
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18
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Lee J, Lozano-Ruiz B, Yang FM, Fan DD, Shen L, González-Navajas JM. The Multifaceted Role of Th1, Th9, and Th17 Cells in Immune Checkpoint Inhibition Therapy. Front Immunol 2021; 12:625667. [PMID: 33777008 PMCID: PMC7994325 DOI: 10.3389/fimmu.2021.625667] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/07/2021] [Indexed: 12/18/2022] Open
Abstract
During the last decade, immune checkpoint inhibition (ICI) has become a pillar of cancer therapy. Antibodies targeting CTLA-4 or PD-1/PD-L1 have been approved in several malignancies, with thousands of clinical trials currently underway. While the majority of cancer immunotherapies have traditionally focused on enhancing cytotoxic responses by CD8+ or NK cells, there are clear evidences that CD4+ T cell responses can modulate the immune response against tumors and influence the efficacy of ICI therapy. CD4+ T cells can differentiate into several subsets of helper T cells (Th) or regulatory T cells (Treg), with a wide range of effector and/or regulatory functions. Importantly, different Th subsets may have different and sometimes contrasting roles in the clinical response to ICI therapy, which in addition may vary depending on the organ and tumor niche. In this review, we discuss recent evidence that highlights how ICI therapy impacts Th1, Th9, and Th17 cells and vice versa. These data might be important designing better interventions that unleash the full potential of immune response against cancer.
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Affiliation(s)
- Jongdae Lee
- School of Basic Medical Sciences and the State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
| | - Beatriz Lozano-Ruiz
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario de Alicante, Alicante, Spain.,Networked Biomedical Research Center for Hepatic and Digestive Diseases (CIBERehd), Institute of Health Carlos III, Madrid, Spain
| | - Fengyuan Mandy Yang
- School of Basic Medical Sciences and the State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
| | - Dengxia Denise Fan
- School of Basic Medical Sciences and the State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
| | - Liya Shen
- School of Basic Medical Sciences and the State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
| | - Jose M González-Navajas
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario de Alicante, Alicante, Spain.,Networked Biomedical Research Center for Hepatic and Digestive Diseases (CIBERehd), Institute of Health Carlos III, Madrid, Spain.,Department of Pharmacology, Pediatrics and Organic Chemistry, University Miguel Hernández, Elche, Spain.,Institute of Research, Development and Innovation in Healthcare Biotechnology in Elche (IDiBE), University Miguel Hernández, Elche, Spain
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19
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Sugata K, Matsunaga Y, Yamashita Y, Nakatsugawa M, Guo T, Halabelian L, Ohashi Y, Saso K, Rahman MA, Anczurowski M, Wang CH, Murata K, Saijo H, Kagoya Y, Ly D, Burt BD, Butler MO, Mak TW, Hirano N. Affinity-matured HLA class II dimers for robust staining of antigen-specific CD4 + T cells. Nat Biotechnol 2021; 39:958-967. [PMID: 33649568 DOI: 10.1038/s41587-021-00836-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 01/15/2021] [Indexed: 01/08/2023]
Abstract
Peptide-major histocompatibility complex (pMHC) multimers enable the detection of antigen-specific T cells in studies ranging from vaccine efficacy to cancer immunotherapy. However, this technology is unreliable when applied to pMHC class II for the detection of CD4+ T cells. Here, using a combination of molecular biological and immunological techniques, we cloned sequences encoding human leukocyte antigen (HLA)-DP, HLA-DQ and HLA-DR molecules with enhanced CD4 binding affinity (with a Kd of 8.9 ± 1.1 µM between CD4 and affinity-matured HLA-DP4) and produced affinity-matured class II dimers that stain antigen-specific T cells better than conventional multimers in both in vitro and ex vivo analyses. Using a comprehensive library of dimers for HLA-DP4, which is the most frequent HLA allele in many ancestry groups, we mapped 103 HLA-DP4-restricted epitopes derived from diverse tumor-associated antigens and cloned the cognate T-cell antigen receptor (TCR) genes from in vitro-stimulated CD4+ T cells. The availability of affinity-matured class II dimers across HLA-DP, HLA-DQ and HLA-DR alleles will aid in the investigation of human CD4+ T-cell responses.
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Affiliation(s)
- Kenji Sugata
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Yukiko Matsunaga
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Yuki Yamashita
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Munehide Nakatsugawa
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Tingxi Guo
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Levon Halabelian
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario, Canada
| | - Yota Ohashi
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Kayoko Saso
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Muhammed A Rahman
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Mark Anczurowski
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Chung-Hsi Wang
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Kenji Murata
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Hiroshi Saijo
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Yuki Kagoya
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Dalam Ly
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Brian D Burt
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Marcus O Butler
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Tak W Mak
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Naoto Hirano
- Tumor Immunotherapy Program, Campbell Family Institute for Breast Cancer Research, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada. .,Department of Immunology, University of Toronto, Toronto, Ontario, Canada.
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20
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Ma F, Luo L, Wang Q. Response of the ileum transcriptome to fructo-oligosaccharides in Taiping chickens. Anim Biotechnol 2021; 33:1217-1228. [PMID: 33591232 DOI: 10.1080/10495398.2021.1884565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The aim of this study was to investigate the effects of fructo-oligosaccharide (FOS) supplementation intake of Taiping chickens (Gallus gallus domesticus) and its stimulating effects on ileum. 120 healthy chickens were randomly divided into two groups; control group (CT) and fructo-oligosaccharides group (FOS). At the 60th day of age, ileum mucosa of three chickens per group were collected and performed transcriptome profiling of Taiping chicken ileum mucosa using the Hiseq™ 2500 sequencing platform. Compared with CT group, 50 genes were differentially expressed in the FOS group. Ten of the differently expressed genes were further validated by RT-qPCR. In addition, gene ontology and Kyoto encyclopedia of genes and genomes analyses revealed that these differentially expressed genes were mainly enriched to drug metabolism-cytochrome P450, metabolism of xenobiotics by cytochrome P450, retinol metabolism, fat digestion and absorption, herpes simplex infection and valine, leucine and isoleucine biosynthesis. The results of this study provided the help to our understanding application of fructo-oligosaccharides in indigenous chicken production and provide a theoretical basis for the genetic development of indigenous chickens.
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Affiliation(s)
- Fang Ma
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, Gansu Province, P. R. China
| | - Lintong Luo
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, Gansu Province, P. R. China
| | - Qianning Wang
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, Gansu Province, P. R. China
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21
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Kato-Mori Y, Okamura T, Kawashita N, Hagiwara K. Characterization of a variant CD4 molecule in Japanese Black cattle. Vet Immunol Immunopathol 2020; 232:110167. [PMID: 33340923 DOI: 10.1016/j.vetimm.2020.110167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/03/2020] [Accepted: 12/05/2020] [Indexed: 10/22/2022]
Abstract
Monoclonal antibodies (mAbs) that recognize cluster of differentiation (CD) molecules on lymphocytes are useful tools for the study of different lymphocyte subsets in flow cytometry (FCM) analysis. CD4 is a glycoprotein found on the surfaces of helper T cells, monocytes, macrophages, and dendritic cells. In this study, we describe Japanese Black (JB) calves in a farm whose peripheral blood mononuclear cells (PBMCs) did not react with a CD4-specific mAb. To identify calves with PBMCs with low mAb reactivity, PBMCs from 21 JB calves (1-12 months of age) bred at the same farm were examined using two different bovine CD4 mAbs (clones #CC8 and #CACT138A). FCM analysis indicated that the calves fell into two groups based on reactivity against the two mAbs, i.e., double-positive (DP) calves, whose PBMCs were recognized by both mAbs clones, and single-positive (SP) calves, whose PBMCs were only recognized by #CACT138A. PBMCs from seven calves were not recognized by #CC8, although they had normal reactivity with another mAb, #CACT138A. Sequencing analysis of the CD4 gene in these calves revealed four nucleotide substitutions (G918 T, A930C, G970A, and G1074A) in the coding region in the SP group when compared to the DP group. Three of the four mutations were associated with amino acid substitution (Q306H, K310 N, and A324 T). The substitution at A324 T was located in the D4 domain of CD4 gene. Homology modeling based on the amino acid sequences revealed that the surface structure of this part of the molecule was significantly different between the SP and the DP groups. Therefore, the epitope recognized by the #CC8 CD4 mAb was altered in calves with this genetic mutation, and this led to the low reactivity of the PBMCs from calves in the SP group aginst the #CC8 mAb. In conclusion, this is the first study to identify CD4 variants in JB cattle. We confirmed that the variants did not affect lymphocyte functions, such as mitogen stimulation or lipopolysaccharide-induced cytokine gene expression.
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Affiliation(s)
- Yuko Kato-Mori
- Graduated School of Science, Technology and Innovation, Kobe University, 7-1-49 Minatojimaminami-machi, Chuo-ku, Kobe, 650-0047, Japan.
| | - Taku Okamura
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan.
| | - Norihito Kawashita
- Faculty of Science and Engineering, Kindai University 3-4-1 Kowakae, Higashiosaka City, Osaka, 577-8502, Japan.
| | - Katsuro Hagiwara
- School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, 069-8501, Japan.
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22
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Huang W, Zhao S, Zhang C, Li Z, Ge S, Lian B, Feng H, Wang K, Xu R, Ji J, Gao J, Shi W, Shen L. Identification of "regulation of RhoA activity panel" as a prognostic and predictive biomarker for gastric cancer. Aging (Albany NY) 2020; 13:714-734. [PMID: 33288739 PMCID: PMC7835016 DOI: 10.18632/aging.202179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 09/14/2020] [Indexed: 11/29/2022]
Abstract
RhoA is a member of the RHO family GTPases and is associated with essential functions in gastric cancer. In this study, we identified a gastric cancer biomarker, termed the “regulation of RhoA activity panel” (RRAP). Patients with gastric cancer from The Cancer Genome Atlas database were divided into training (N=160) and validation (N=155) cohorts. A cohort of 109 Chinese gastric cancer patients was utilized as an independent validation. Patients with mutated RRAP showed significantly better overall survival than patients with wild type RRAP. We also analyzed the association between RRAP and the migration capacity, immune-related signatures, and the tumor microenvironment. RRAP-mutant tumors had a significantly lower degree of lymph node metastasis and lower activities of migration-related pathways. These tumors also showed significantly increased immune cell infiltration and cytotoxic activity. Furthermore, two independent patient cohorts who received immune checkpoint blockade therapy were assessed for RRAP mutant status. As expected, for both immunotherapy cohorts, higher response rates to immune checkpoint blockade therapy were observed in patients with RRAP-mutant tumors than in patients with wild type RRAP tumors. Overall, this study indicates that the RRAP gene set is a potential biomarker for gastric cancer prognosis and therapeutic selection.
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Affiliation(s)
- Wenwen Huang
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | | | - Cheng Zhang
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Zhongwu Li
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Sai Ge
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | | | - Hui Feng
- Shanghai Junshi Biosciences Co., Ltd, Shanghai 201203, China
| | - Kai Wang
- OrigiMed Inc., Shanghai 201112, China
| | - Ruihua Xu
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Jiafu Ji
- Department of Gastrointestinal Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing 100142, China
| | - Jing Gao
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital and Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen 518116, China
| | - Weiwei Shi
- OrigiMed Inc., Shanghai 201112, China.,Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China
| | - Lin Shen
- Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Peking University Cancer Hospital and Institute, Beijing 100142, China
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23
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Ohshima S, Matsubara T, Miyamoto A, Shigenari A, Imaeda N, Takasu M, Tanaka M, Shiina T, Suzuki S, Hirayama N, Kitagawa H, Kulski JK, Ando A, Kametani Y. Preparation and characterization of monoclonal antibodies recognizing two CD4 isotypes of Microminipigs. PLoS One 2020; 15:e0242572. [PMID: 33237936 PMCID: PMC7688132 DOI: 10.1371/journal.pone.0242572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/04/2020] [Indexed: 12/21/2022] Open
Abstract
Cluster of differentiation 4 (CD4) molecule expressed on the leukocytes is known to function as a co-receptor for class II major histocompatibility complex (MHC) binding to T cell receptor (TCR) on helper T cells. We previously identified two CD4 alleles (CD4.A and CD4.B) in a Microminipig population based on nucleotide sequencing and PCR detection of their gene sequences. However, CD4.B protein expression was not examined because of the unavailability of a reactive antibody to a CD4.B epitope. In this study, we have produced two swine-specific monoclonal antibodies (mAbs) against CD4.B molecules, one that recognizes only CD4.B (b1D7) and the other that recognizes both the CD4.A and CD4.B alleles (x1E10) and that can be used to distinguish CD4 T cell subsets by flow cytometry and immunohistochemistry. Using these two mAbs, we identified CD4.A and CD4.B allele-specific proteins on the surface of CD4.A (+/+) and CD4.B (+/+) T cells at a similar level of expression. Moreover, stimulation of peripheral blood mononuclear cells (PBMCs) derived from CD4.A (+/+) and CD4.B (+/+) swine with toxic shock syndrome toxin-1 (TSST-1) in vitro similarly activated both groups of cells that exhibited a slight increase in the CD4/CD8 double positive (DP) cell ratio. A large portion of the DP cells from the allelic CD4.A (+/+) and CD4.B (+/+) groups enhanced the total CD4 and class I swine leukocyte antigen (SLA) expression. The x1E10 mAb delayed and reduced the TSST-1-induced activation of CD4 T cells. Thus, CD4.B appears to be a functional protein whose expression on activated T cells is analogous to CD4.A.
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Affiliation(s)
- Shino Ohshima
- Division of Basic Medical Science, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Tatsuya Matsubara
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Gifu, Japan
| | - Asuka Miyamoto
- Division of Basic Medical Science, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Atsuko Shigenari
- Division of Basic Medical Science, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Noriaki Imaeda
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Gifu, Japan
| | - Masaki Takasu
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, Gifu, Japan
| | - Masafumi Tanaka
- Division of Basic Medical Science, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Takashi Shiina
- Division of Basic Medical Science, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Shingo Suzuki
- Division of Basic Medical Science, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Noriaki Hirayama
- Institute of Advanced Biosciences, Tokai University, Hiratsuka, Kanagawa, Japan
| | - Hitoshi Kitagawa
- Department of Veterinary Medicine, Faculty of Veterinary Medicine Okayama University of Science, Imabari, Ehime, Japan
| | - Jerzy K. Kulski
- Division of Basic Medical Science, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
- Faculty of Health and Medical Sciences, UWA Medical School, The University of Western Australia, Crawley, WA, Australia
| | - Asako Ando
- Division of Basic Medical Science, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
| | - Yoshie Kametani
- Division of Basic Medical Science, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
- Institute of Advanced Biosciences, Tokai University, Hiratsuka, Kanagawa, Japan
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24
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Apte SH, Minigo G, Groves PL, Spargo JC, Plebanski M, Grigg MJ, Kenangalem E, Burel JG, Loughland JR, Flanagan KL, Piera KA, William T, Price RN, Woodberry T, Barber BE, Anstey NM, Doolan DL. A population of CD4 hiCD38 hi T cells correlates with disease severity in patients with acute malaria. Clin Transl Immunology 2020; 9:e1209. [PMID: 33282291 PMCID: PMC7684974 DOI: 10.1002/cti2.1209] [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: 05/07/2020] [Revised: 09/08/2020] [Accepted: 10/20/2020] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE CD4+ T cells are critical mediators of immunity to Plasmodium spp. infection, but their characteristics during malarial episodes and immunopathology in naturally infected adults are poorly defined. Flow cytometric analysis of PBMCs from patients with either P. falciparum or P. knowlesi malaria revealed a pronounced population of CD4+ T cells co-expressing very high levels of CD4 and CD38 we have termed CD4hiCD38hi T cells. We set out to gain insight into the function of these novel cells. METHODS CD4+ T cells from 18 patients with P. falciparum or P. knowlesi malaria were assessed by flow cytometry and sorted into populations of CD4hiCD38hi or CD4norm T cells. Gene expression in the sorted populations was assessed by qPCR and NanoString. RESULTS CD4hiCD38hi T cells expressed high levels of CD4 mRNA and canonical type 1 regulatory T-cell (TR1) genes including IL10, IFNG, LAG3 and HAVCR2 (TIM3), and other genes with relevance to cell migration and immunomodulation. These cells increased in proportion to malaria disease severity and were absent after parasite clearance with antimalarials. CONCLUSION In naturally infected adults with acute malaria, a prominent population of type 1 regulatory T cells arises that can be defined by high co-expression of CD4 and CD38 (CD4hiCD38hi) and that correlates with disease severity in patients with falciparum malaria. This study provides fundamental insights into T-cell biology, including the first evidence that CD4 expression is modulated at the mRNA level. These findings have important implications for understanding the balance between immunity and immunopathology during malaria.
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Affiliation(s)
- Simon H Apte
- Infectious Diseases ProgramQIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia,Present address:
Queensland Lung Transplant Service, The Prince Charles HospitalChermsideQLDAustralia
| | - Gabriela Minigo
- Global and Tropical Health DivisionMenzies School of Health ResearchCasuarinaNTAustralia,Charles Darwin UniversityDarwinNTAustralia
| | - Penny L Groves
- Infectious Diseases ProgramQIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia
| | - Jessie C Spargo
- Global and Tropical Health DivisionMenzies School of Health ResearchCasuarinaNTAustralia,Charles Darwin UniversityDarwinNTAustralia
| | - Magdalena Plebanski
- Department of Immunology and PathologyMonash UniversityPrahranVICAustralia,School of Health and Biomedical SciencesRMIT UniversityBundooraVICAustralia
| | - Mathew J Grigg
- Global and Tropical Health DivisionMenzies School of Health ResearchCasuarinaNTAustralia,Charles Darwin UniversityDarwinNTAustralia
| | - Enny Kenangalem
- Papuan Health and Community Development FoundationTimikaIndonesia
| | - Julie G Burel
- Infectious Diseases ProgramQIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia,Present address:
La Jolla Institute for ImmunologyLa JollaCAUSA
| | - Jessica R Loughland
- Infectious Diseases ProgramQIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia,Global and Tropical Health DivisionMenzies School of Health ResearchCasuarinaNTAustralia,Charles Darwin UniversityDarwinNTAustralia
| | - Katie L Flanagan
- Department of Immunology and PathologyMonash UniversityPrahranVICAustralia,School of Health and Biomedical SciencesRMIT UniversityBundooraVICAustralia,School of MedicineUniversity of TasmaniaLauncestonTASAustralia
| | - Kim A Piera
- Global and Tropical Health DivisionMenzies School of Health ResearchCasuarinaNTAustralia,Charles Darwin UniversityDarwinNTAustralia
| | - Timothy William
- School of MedicineUniversity of TasmaniaLauncestonTASAustralia
| | - Ric N Price
- Global and Tropical Health DivisionMenzies School of Health ResearchCasuarinaNTAustralia,Nuffield Department of Clinical MedicineCentre for Tropical Medicine and Global HealthUniversity of OxfordOxfordUK,Mahidol‐Oxford Tropical Medicine Research UnitFaculty of Tropical MedicineMahidol UniversityBangkokThailand
| | - Tonia Woodberry
- Global and Tropical Health DivisionMenzies School of Health ResearchCasuarinaNTAustralia,Charles Darwin UniversityDarwinNTAustralia
| | - Bridget E Barber
- Infectious Diseases ProgramQIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia,Global and Tropical Health DivisionMenzies School of Health ResearchCasuarinaNTAustralia,Charles Darwin UniversityDarwinNTAustralia
| | - Nicholas M Anstey
- Global and Tropical Health DivisionMenzies School of Health ResearchCasuarinaNTAustralia
| | - Denise L Doolan
- Infectious Diseases ProgramQIMR Berghofer Medical Research InstituteBrisbaneQLDAustralia,Centre for Molecular TherapeuticsAustralian Institute of Tropical Health & MedicineJames Cook UniversityCairnsQLDAustralia
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25
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Tay RE, Richardson EK, Toh HC. Revisiting the role of CD4 + T cells in cancer immunotherapy-new insights into old paradigms. Cancer Gene Ther 2020; 28:5-17. [PMID: 32457487 PMCID: PMC7886651 DOI: 10.1038/s41417-020-0183-x] [Citation(s) in RCA: 431] [Impact Index Per Article: 107.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/04/2020] [Accepted: 05/12/2020] [Indexed: 02/06/2023]
Abstract
Cancer immunotherapy has revolutionised cancer treatment, with immune checkpoint blockade (ICB) therapy and adoptive cell therapy (ACT) increasingly becoming standard of care across a growing number of cancer indications. While the majority of cancer immunotherapies focus on harnessing the anti-tumour CD8+ cytotoxic T cell response, the potential role of CD4+ 'helper' T cells has largely remained in the background. In this review, we give an overview of the multifaceted role of CD4+ T cells in the anti-tumour immune response, with an emphasis on recent evidence that CD4+ T cells play a bigger role than previously thought. We illustrate their direct anti-tumour potency and their role in directing a sustained immune response against tumours. We further highlight the emerging observation that CD4+ T cell responses against tumours tend to be against self-derived epitopes. These recent trends raise vital questions and considerations that will profoundly affect the rational design of immunotherapies to leverage on the full potential of the immune system against cancer.
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Affiliation(s)
- Rong En Tay
- Singapore Immunology Network, Agency for Science, Technology, and Research (A*STAR), Singapore, 138648, Singapore
| | - Emma K Richardson
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, 169610, Singapore
| | - Han Chong Toh
- Singapore Immunology Network, Agency for Science, Technology, and Research (A*STAR), Singapore, 138648, Singapore. .,Division of Medical Oncology, National Cancer Centre Singapore, Singapore, 169610, Singapore.
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26
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Zubair H, Khan MA, Anand S, Srivastava SK, Singh S, Singh AP. Modulation of the tumor microenvironment by natural agents: implications for cancer prevention and therapy. Semin Cancer Biol 2020; 80:237-255. [PMID: 32470379 PMCID: PMC7688484 DOI: 10.1016/j.semcancer.2020.05.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 05/10/2020] [Accepted: 05/14/2020] [Indexed: 02/07/2023]
Abstract
The development of cancer is not just the growth and proliferation of a single transformed cell, but its surrounding environment also coevolves with it. Indeed, successful cancer progression depends on the ability of the tumor cells to develop a supportive tumor microenvironment consisting of various types of stromal cells. The interactions between the tumor and stromal cells are bidirectional and mediated through a variety of growth factors, cytokines, metabolites, and other biomolecules secreted by these cells. Tumor-stromal crosstalk creates optimal conditions for the tumor growth, metastasis, evasion of immune surveillance, and therapy resistance, and its targeting is being explored for clinical management of cancer. Natural agents from plants and marine life have been at the forefront of traditional medicine. Numerous epidemiological studies have reported the health benefits imparted on the consumption of certain fruits, vegetables, and their derived products. Indeed, a significant majority of anti-cancer drugs in clinical use are either naturally occurring compounds or their derivatives. In this review, we describe fundamental cellular and non-cellular components of the tumor microenvironment and discuss the significance of natural compounds in their targeting. Existing literature provides hope that novel prevention and therapeutic approaches will emerge from ongoing scientific efforts leading to the reduced tumor burden and improve clinical outcomes in cancer patients.
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Affiliation(s)
- Haseeb Zubair
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, USA; Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Mohammad Aslam Khan
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, USA; Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Shashi Anand
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, USA; Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Sanjeev Kumar Srivastava
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, USA; Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA
| | - Seema Singh
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, USA; Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA; Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL, USA
| | - Ajay Pratap Singh
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, USA; Mitchell Cancer Institute, University of South Alabama, Mobile, AL, USA; Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL, USA.
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27
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Hui E. Understanding T cell signaling using membrane reconstitution. Immunol Rev 2020; 291:44-56. [PMID: 31402497 DOI: 10.1111/imr.12767] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 04/02/2019] [Indexed: 12/31/2022]
Abstract
T cells are central players of our immune system, as their functions range from killing tumorous and virus-infected cells to orchestrating the entire immune response. In order for T cells to divide and execute their functions, they must be activated by antigen-presenting cells (APCs) through a cell-cell junction. Extracellular interactions between receptors on T cells and their ligands on APCs trigger signaling cascades comprised of protein-protein interactions, enzymatic reactions, and spatial reorganization events, to either stimulate or repress T cell activation. Plasma membrane is the major platform for T cell signaling. Recruitment of cytosolic proteins to membrane-bound receptors is a common critical step in many signaling pathways. Membranes decrease the dimensionality of protein-protein interactions to enable weak yet biologically important interactions. Membrane resident proteins can phase separate into micro-islands that promote signaling by enriching or excluding signal regulators. Moreover, some membrane lipids can either mediate or regulate cell signaling by interacting with signaling proteins. While it is critical to investigate T cell signaling in a cellular environment, the large number of signaling pathways involved and potential crosstalk have made it difficult to obtain precise, quantitative information on T cell signaling. Reconstitution of purified proteins to model membranes provides a complementary avenue for T cell signaling research. Here, I review recent progress in studying T cell signaling using membrane reconstitution approaches.
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Affiliation(s)
- Enfu Hui
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, California
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28
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Sawutdeechaikul P, Jiangchareon B, Wanichwecharungruang S, Palaga T. Oxidized carbon nanoparticles as an effective protein antigen delivery system targeting the cell-mediated immune response. Int J Nanomedicine 2019; 14:4867-4880. [PMID: 31308663 PMCID: PMC6618039 DOI: 10.2147/ijn.s204134] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 05/15/2019] [Indexed: 01/15/2023] Open
Abstract
Background: The demand for an effective vaccine delivery system that drives a suitable immune response is increasing. The oxidized carbon nanosphere (OCN), a negatively charged carbon nanoparticle, has the potential to fulfill this requirement because it can efficiently deliver macromolecules into cells and allows endosomal leakage. However, fundamental insights into how OCNs are taken up by antigen-presenting cells, and the intracellular behavior of delivered molecules is lacking. Furthermore, how immune responses are stimulated by OCN-mediated delivery has not been investigated. Purpose: In this study, the model protein antigen ovalbumin (OVA) was used to investigate the uptake mechanism and intracellular fate of OCN-mediated delivery of protein in macrophages. Moreover, the immune response triggered by OVA delivered by OCNs was characterized. Methods: Bone-marrow-derived macrophages (BMDMs) from mice were used to study antigen uptake and intracellular trafficking. Mice were immunized using OCN–OVA combined with known adjuvants, and the specific immune response was measured. Results: OCNs showed no cytotoxicity against BMDMs. OCN-mediated delivery of OVA into BMDMs was partially temperature independent process. Using specific inhibitors, it was revealed that intracellular delivery of OCN–OVA does not rely on phagocytosis or the clathrin- and lipid raft/caveolae-mediated pathways. Delivered OVA was found to colocalize with compartments containing MHC class I, but not with early endosomes, lysosomes, and autophagosomes. Immunization of OVA using OCNs in combination with the known adjuvant monophosphoryl lipid A specifically enhanced interferon gamma (IFNγ)- and granzyme B-producing cytotoxic T cells (CTLs). Conclusion: OCNs effectively delivered protein antigens into macrophages that localized with compartments containing MHC class I partially by the temperature independent, but not clathrin- and lipid raft/caveolae-mediated pathways. Increased CD8+ T-cell activity was induced by OCN-delivered antigens, suggesting antigen processing toward antigen presentation for CTLs. Taken together, OCNs are a potential protein antigen delivery system that stimulates the cell-mediated immune response.
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Affiliation(s)
- Pritsana Sawutdeechaikul
- Graduate Program in Microbiology and Microbial Technology, Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.,Center of Excellence in Immune-mediated Diseases, Chulalongkorn University, Bangkok 10330, Thailand
| | - Banphot Jiangchareon
- Center of Excellence in Materials and Bio-Interfaces, Chulalongkorn University , Bangkok, 10330, Thailand.,Nanotec-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.,Department of Chemistry, Faculty of Science, Chulalongkorn University , Bangkok, 10330, Thailand
| | - Supason Wanichwecharungruang
- Center of Excellence in Materials and Bio-Interfaces, Chulalongkorn University , Bangkok, 10330, Thailand.,Nanotec-CU Center of Excellence on Food and Agriculture, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.,Department of Chemistry, Faculty of Science, Chulalongkorn University , Bangkok, 10330, Thailand.,Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Tanapat Palaga
- Graduate Program in Microbiology and Microbial Technology, Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.,Center of Excellence in Immune-mediated Diseases, Chulalongkorn University, Bangkok 10330, Thailand.,Center of Excellence in Materials and Bio-Interfaces, Chulalongkorn University , Bangkok, 10330, Thailand
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Glatzová D, Cebecauer M. Dual Role of CD4 in Peripheral T Lymphocytes. Front Immunol 2019; 10:618. [PMID: 31001252 PMCID: PMC6454155 DOI: 10.3389/fimmu.2019.00618] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 03/08/2019] [Indexed: 01/07/2023] Open
Abstract
The interaction of T-cell receptors (TCRs) with self- and non-self-peptides in the major histocompatibility complex (MHC) stimulates crucial signaling events, which in turn can activate T lymphocytes. A variety of accessory molecules further modulate T-cell signaling. Of these, the CD4 and CD8 coreceptors make the most critical contributions to T cell sensitivity in vivo. Whereas, CD4 function in T cell development is well-characterized, its role in peripheral T cells remains incompletely understood. It was originally suggested that CD4 stabilizes weak interactions between TCRs and peptides in the MHC and delivers Lck kinases to that complex. The results of numerous experiments support the latter role, indicating that the CD4-Lck complex accelerates TCR-triggered signaling and controls the availability of the kinase for TCR in the absence of the ligand. On the other hand, extremely low affinity of CD4 for MHC rules out its ability to stabilize the receptor-ligand complex. In this review, we summarize the current knowledge on CD4 in T cells, with a special emphasis on the spatio-temporal organization of early signaling events and the relevance for CD4 function. We further highlight the capacity of CD4 to interact with the MHC in the absence of TCR. It drives the adhesion of T cells to the cells that express the MHC. This process is facilitated by the CD4 accumulation in the tips of microvilli on the surface of unstimulated T cells. Based on these observations, we suggest an alternative model of CD4 role in T-cell activation.
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Affiliation(s)
- Daniela Glatzová
- Department of Biophysical Chemistry, J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czechia
- Laboratory of Leukocyte Signaling, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Marek Cebecauer
- Department of Biophysical Chemistry, J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czechia
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Trimodal synergistic antitumor drug delivery system based on graphene oxide. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 15:142-152. [PMID: 30300749 DOI: 10.1016/j.nano.2018.09.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 09/18/2018] [Accepted: 09/24/2018] [Indexed: 12/23/2022]
Abstract
A multifunctional antitumor drug delivery system was synthesized based on graphene oxide (GO) for near-infrared (NIR) light controlling chemotherapeutic/photothermal (PTT) /photodynamic (PDT) trimodal synergistic therapy. The system named ICG-Wed-GO was formed by co-loading wedelolactone (Wed) and indocyanine green (ICG) on the surface of GO through π-π stacking interaction. Under NIR laser irradiation, ICG-Wed-GO could effectively absorb and transform optical energy to heat, generate reactive oxygen species (ROS) to ablating and damage tumor cells. The temperature of ICG-Wed-GO solution reached up to 79.4 °C in 10 min with NIR irradiation. In in vitro and in vivo study, ICG-Wed-GO showed excellent antitumor effect. After 14-day treatment of ICG-Wed-GO with NIR laser irradiation, the tumor disappeared completely on tumor-bearing mice. The low biotoxicity of ICG-Wed-GO was also proved. The system achieved the synergistic trimodal chemotherapeutic/photothermal/photodynamic treatment and demonstrated excellent antitumor effect, which is expected to have a greater potential for cancer therapy.
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Cao Z, Wang L, Xiang Y, Liu X, Tu Z, Sun Y, Zhou Y. MHC class IIα polymorphism and its association with resistance/susceptibility to Vibrio harveyi in golden pompano (Trachinotus ovatus). FISH & SHELLFISH IMMUNOLOGY 2018; 80:302-310. [PMID: 29902561 DOI: 10.1016/j.fsi.2018.06.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/13/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
The major histocompatibility complex (MHC) plays an important role in the vertebrate immune response to antigenic peptides, and it is essential for recognizing foreign pathogens in organisms. In this study, MHC class IIα (Trov-MHC IIα) from the golden pompano (Trachinotus ovatus) was first cloned and identified. The gene structure of Trov-MHC IIα was contained four exons and three introns. High levels of polymorphism were found in the exon 2 of Trov-MHC IIα. A total of 29 different MHC class IIα alleles with high polymorphism were identified from 80 individuals. The ratio of non-synonymous substitutions (dN) to synonymous substitutions (dS) was 3.157 (>1) in the peptide binding regions (PBRs) of Trov-MHC IIα, suggesting positive balancing selection. Six alleles were selected to analyze the association between alleles and resistance/susceptibility to Vibrio harveyi in golden pompano. The results showed that Trov-DAA*6401 and Trov-DAA*6702 alleles were associated with the resistance to V. harveyi in golden pompano, while alleles Trov-DAA*6304 and Trov-DAA*7301 were associated with the susceptibility to V. harveyi in golden pompano. This study confirmed the association between alleles of MHC class IIα and disease resistance, and also detected some alleles which might be correlated with high V. harveyi-resistance. These disease resistance-related MHC alleles could be used as potential genetic markers for molecular marker-assisted selective breeding in the golden pompano.
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Affiliation(s)
- Zhenjie Cao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, PR China; Institute of Tropical Agriculture and Forestry, Hainan University, PR China
| | - Lu Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, PR China
| | - Yajing Xiang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, PR China
| | - Xiaocen Liu
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, PR China
| | - Zhigang Tu
- Hainan Academy of Ocean and Fisheries Sciences, Haikou, Hainan, China
| | - Yun Sun
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, PR China.
| | - Yongcan Zhou
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, PR China.
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Glassman CR, Parrish HL, Lee MS, Kuhns MS. Reciprocal TCR-CD3 and CD4 Engagement of a Nucleating pMHCII Stabilizes a Functional Receptor Macrocomplex. Cell Rep 2018; 22:1263-1275. [PMID: 29386113 PMCID: PMC5813697 DOI: 10.1016/j.celrep.2017.12.104] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 12/07/2017] [Accepted: 12/27/2017] [Indexed: 12/24/2022] Open
Abstract
CD4+ T cells convert the time that T cell receptors (TCRs) interact with peptides embedded within class II major histocompatibility complex molecules (pMHCII) into signals that direct cell-fate decisions. In principle, TCRs relay information to intracellular signaling motifs of the associated CD3 subunits, while CD4 recruits the kinase Lck to those motifs upon coincident detection of pMHCII. But the mechanics by which this occurs remain enigmatic. In one model, the TCR and CD4 bind pMHCII independently, while in another, CD4 interacts with a composite surface formed by the TCR-CD3 complex bound to pMHCII. Here, we report that the duration of TCR-pMHCII interactions impact CD4 binding to MHCII. In turn, CD4 increases TCR confinement to pMHCII via reciprocal interactions involving membrane distal and proximal CD4 ectodomains. The data suggest that a precisely assembled macrocomplex functions to reliably convert TCR-pMHCII confinement into reproducible signals that orchestrate adaptive immunity.
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Affiliation(s)
- Caleb R Glassman
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, AZ 85724, USA
| | - Heather L Parrish
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, AZ 85724, USA
| | - Mark S Lee
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, AZ 85724, USA
| | - Michael S Kuhns
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, AZ 85724, USA; The BIO-5 Institute, The University of Arizona College of Medicine, Tucson, AZ 85724, USA; The Arizona Center on Aging, The University of Arizona College of Medicine, Tucson, AZ 85724, USA; The University of Arizona Cancer Center, The University of Arizona College of Medicine, Tucson, AZ 85724, USA.
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Cao Z, He M, Chen X, Wang S, Cai Y, Xie Z, Sun Y, Zhou Y. Identification, polymorphism and expression of MHC class Iα in golden pompano, Trachinotus ovatus. FISH & SHELLFISH IMMUNOLOGY 2017; 67:55-65. [PMID: 28554837 DOI: 10.1016/j.fsi.2017.05.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 05/18/2017] [Accepted: 05/25/2017] [Indexed: 06/07/2023]
Abstract
The classical major histocompatibility complex class I (MHC I) plays a vital role in the immune system. In this study, we cloned and identified golden pompano (Trachinotus ovatus) MHC Iα (Trov-MHC Iα), which encodes 351 amino acid residues including a leader peptide, α1, α2, α3 domain, a transmembrane region and a cytoplasmic domain. Twenty six different sequences, which encoded various numbers of amino acid residues ranging from 348 to 354, were obtained from 12 individuals. Highly genetic polymorphism was found in the Trov-MHC Iα, especially in the α1 and α2 domains. Meanwhile, in the α1 and α2 domains, 21 positive selected positions were revealed by site models, indicating the diversity of Trov-MHC Iα may be mainly generated by positive selection. Moreover, quantitative real-time reverse transcription PCR and western blotting analyses demonstrated that Trov-MHC Iα was ubiquitously expressed in the nine tested tissues and more highly expressed in intestine, head kidney, gill, and spleen. In the head kidney and spleen, Trov-MHC Iα was significantly upregulated under LPS or poly I:C stimulation. The results of this study provide valuable insight into molecular polymorphism, evolutionary mechanism, expression and function of MHC Iα in the immune system of golden pompano.
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Affiliation(s)
- Zhenjie Cao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, China; Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou, Hainan 570228, China
| | - Mingwang He
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, Hainan 570228, China
| | - Xiaojuan Chen
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, China
| | - Shifeng Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, China
| | - Yan Cai
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou, Hainan 570228, China
| | - Zhenyu Xie
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, China
| | - Yun Sun
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, China; Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou, Hainan 570228, China.
| | - Yongcan Zhou
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, Haikou, Hainan 570228, China.
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Mikecz K, Glant TT, Markovics A, Rosenthal KS, Kurko J, Carambula RE, Cress S, Steiner HL, Zimmerman DH. An epitope-specific DerG-PG70 LEAPS vaccine modulates T cell responses and suppresses arthritis progression in two related murine models of rheumatoid arthritis. Vaccine 2017; 35:4048-4056. [PMID: 28583308 DOI: 10.1016/j.vaccine.2017.05.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/13/2017] [Accepted: 05/03/2017] [Indexed: 12/29/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune joint disease maintained by aberrant immune responses involving CD4+ T helper (Th)1 and Th17 cells. In this study, we tested the therapeutic efficacy of Ligand Epitope Antigen Presentation System (LEAPS™) vaccines in two Th1 cell-driven mouse models of RA, cartilage proteoglycan (PG)-induced arthritis (PGIA) and PG G1-domain-induced arthritis (GIA). The immunodominant PG peptide PG70 was attached to a DerG or J immune cell binding peptide, and the DerG-PG70 and J-PG70 LEAPS vaccines were administered to the mice after the onset of PGIA or GIA symptoms. As indicated by significant decreases in visual and histopathological scores of arthritis, the DerG-PG70 vaccine inhibited disease progression in both PGIA and GIA, while the J-PG70 vaccine was ineffective. Splenic CD4+ cells from DerG-PG70-treated mice were diminished in Th1 and Th17 populations but enriched in Th2 and regulatory T (Treg) cells. In vitro spleen cell-secreted and serum cytokines from DerG-PG70-treated mice demonstrated a shift from a pro-inflammatory to an anti-inflammatory/regulatory profile. DerG-PG70 peptide tetramers preferentially bound to CD4+ T-cells of GIA spleen cells. We conclude that the DerG-PG70 vaccine (now designated CEL-4000) exerts its therapeutic effect by interacting with CD4+ cells, which results in an antigen-specific down-modulation of pathogenic T-cell responses in both the PGIA and GIA models of RA. Future studies will need to determine the potential of LEAPS vaccination to provide disease suppression in patients with RA.
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Affiliation(s)
- Katalin Mikecz
- Rush University Medical Center, Department of Orthopedic Surgery, 1735 W. Harrison St., Cohn Research Building, Chicago, IL 60612, United States.
| | - Tibor T Glant
- Rush University Medical Center, Department of Orthopedic Surgery, 1735 W. Harrison St., Cohn Research Building, Chicago, IL 60612, United States.
| | - Adrienn Markovics
- Rush University Medical Center, Department of Orthopedic Surgery, 1735 W. Harrison St., Cohn Research Building, Chicago, IL 60612, United States.
| | - Kenneth S Rosenthal
- Roseman University of Health Sciences College of Medicine, 10530 Discovery Dr., Las Vegas, NV 89135, United States.
| | - Julia Kurko
- Rush University Medical Center, Department of Orthopedic Surgery, 1735 W. Harrison St., Cohn Research Building, Chicago, IL 60612, United States.
| | - Roy E Carambula
- CEL-SCI Corporation, 8229 Boone Blvd., Suite 802, Vienna, VA 22182, United States.
| | - Steve Cress
- CEL-SCI Corporation, 8229 Boone Blvd., Suite 802, Vienna, VA 22182, United States.
| | - Harold L Steiner
- CEL-SCI Corporation, 8229 Boone Blvd., Suite 802, Vienna, VA 22182, United States.
| | - Daniel H Zimmerman
- CEL-SCI Corporation, 8229 Boone Blvd., Suite 802, Vienna, VA 22182, United States.
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Zhang Q, Yang K, Huang Y, He J, Yu S, Cui Y. Distribution of T-cell markers CD4 and CD8α in lymphoid organs of healthy newborn, juvenile, and adult highland-plateau yaks. Am J Vet Res 2017; 78:609-617. [DOI: 10.2460/ajvr.78.5.609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zhang A, Xu J, Lai H, Huang W, Fang N, Chen R. Age-related changes and distribution of T cell markers (CD3 and CD4) and toll-like receptors(TLR2, TLR3,TLR4 and TLR7) in the duck lymphoid organs. Immunobiology 2017; 222:857-864. [PMID: 28356195 DOI: 10.1016/j.imbio.2017.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 01/20/2017] [Indexed: 12/19/2022]
Abstract
T lymphocytes and Toll-like receptors have been confirmed to have correlation with the ability to resistance to pathogenic challenges and play an important role in duck immune system. However, the information of ontogeny of T lymphocytes and Toll-like receptors is scarcely in duck. Therefore, to address these questions, we report the development and distribution of CD3 and CD4 by immunocytochemistry and the age-related mRNA level of duck T cell markers (CD3 and CD4) and Toll-like receptors (TLR2, TLR3, TLR4 and TLR7) by real time quantitative PCR in duck lymphoid organs (thymus, bursa of Fabricius and spleen). Results indicated that CD3 and CD4 positive cells can be observed in all test organs and partly change in an age-related way. CD4 positive T cell of duck spleen mainly distributed in periarterial lymphatic sheaths and red pulp, not in white pulp. Both of CD3 and CD4 were experienced significant increased wave twice in duck lymphoid organs and T cell dependent cellular immunity of duck may well established until 5 weeks old. The mRNA expression levels of duck TLRs were age and organ dependent, and duck TLR3 and TLR7 were significantly lower abundance in the spleen but higher in thymus and bursa of Fabricius, respectively. This study provide the essential knowledge of the ontogeny of T cells and Toll-like receptors in duck, which may shed lights on the T-cell mediate immunity and innate immunity in duck.
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Affiliation(s)
- Aiguo Zhang
- College of Veterinary Medicine, South China Agricultural University,483 Wushan Street, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Jiahua Xu
- Guangdong Enterprise Key Laboratory of Biotechnology R&D of Veterinary Biologics, Guangdong, Zhaoqing 526238, China
| | - Hanzhang Lai
- Guangdong Enterprise Key Laboratory of Biotechnology R&D of Veterinary Biologics, Guangdong, Zhaoqing 526238, China
| | - Wenke Huang
- Guangdong Enterprise Key Laboratory of Biotechnology R&D of Veterinary Biologics, Guangdong, Zhaoqing 526238, China
| | - Niran Fang
- College of Veterinary Medicine, South China Agricultural University,483 Wushan Street, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Ruiai Chen
- College of Veterinary Medicine, South China Agricultural University,483 Wushan Street, Tianhe District, Guangzhou, Guangdong 510642, China.
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S. Rosenthal K, H. Zimmerman D. J-LEAPS vaccines elicit antigen specific Th1 responses by promoting maturation of type 1 dendritic cells (DC1). AIMS ALLERGY AND IMMUNOLOGY 2017. [DOI: 10.3934/allergy.2017.2.89] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Matsubara T, Nishii N, Takashima S, Takasu M, Imaeda N, Aiki-Oshimo K, Yamazoe K, Kakisaka M, Takeshima SN, Aida Y, Kametani Y, Kulski JK, Ando A, Kitagawa H. Identification and characterization of two CD4 alleles in Microminipigs. BMC Vet Res 2016; 12:222. [PMID: 27717346 PMCID: PMC5055687 DOI: 10.1186/s12917-016-0856-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 10/04/2016] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND We previously identified two phenotypes of CD4+ cells with and without reactions to anti-pig CD4 monoclonal antibodies by flow cytometry in a herd of Microminipigs. In this study, we analyzed the coding sequences of CD4 and certified the expression of CD4 molecules in order to identify the genetic sequence variants responsible for the positive and negative PBMCs reactivity to anti-pig CD4 monoclonal antibodies. RESULTS We identified two CD4 alleles, CD4.A and CD4.B, corresponding to antibody positive and negative, respectively, by nucleotide sequencing of PCR products using CD4 specific primer pairs. In comparison with the swine CD4 amino-acid sequence [GenBank: NP_001001908], CD4.A had seven amino-acid substitutions and CD4.B had 15 amino-acid substitutions. The amino-acid sequences within domain 1 of CD4.B were identical to the swine CD4.2 [GenBank: CAA46584] sequence that had been reported previously to be a modified CD4 molecule that had lost reactivity with an anti-pig CD4 antibody in NIH miniature pigs. Homozygous and heterozygous CD4.A and CD4.B alleles in the Microminipigs herd were characterised by using the RFLP technique with the restriction endonuclease, BseRI. The anti-pig CD4 antibody recognized pig PBMCs with CD4.AA and CD4.AB, but did not recognized those with CD4.BB. We transfected HeLa cells with the FLAG-tagged CD4.A or CD4.B vectors, and certified that transfected HeLa cells expressed FLAG in both vectors. The failure of cells to react with anti-CD4 antibodies in CD4.B pigs was associated to ten amino-acid substitutions in domain 1 and/or one amino-acid substitution in joining region 3 of CD4.B. We also found exon 8 was defective in some CD4.A and CD4.B resulting in the loss of the transmembrane domain, which implies that these CD4 proteins are secreted from helper T cells into the circulation. CONCLUSIONS We identified that amino-acids substitutions of domain 1 in CD4.B gave rise to the failure of some CD4 expressing cells to react with particular anti-pig CD4 monoclonal antibodies. In addition, we developed a PCR-RFLP method that enabled us to simply identify the CD4 sequence variant and the positive and negative PBMCs reactivity to our anti-pig CD4 monoclonal antibodies without the need to use flow cytometric analysis.
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Affiliation(s)
- Tatsuya Matsubara
- United Graduate School of Veterinary Sciences, Gifu University, Gifu, 501-1193 Japan
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193 Japan
| | - Naohito Nishii
- United Graduate School of Veterinary Sciences, Gifu University, Gifu, 501-1193 Japan
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193 Japan
| | - Satoshi Takashima
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193 Japan
| | - Masaki Takasu
- United Graduate School of Veterinary Sciences, Gifu University, Gifu, 501-1193 Japan
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193 Japan
| | - Noriaki Imaeda
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193 Japan
| | - Kayo Aiki-Oshimo
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193 Japan
| | - Kazuaki Yamazoe
- United Graduate School of Veterinary Sciences, Gifu University, Gifu, 501-1193 Japan
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193 Japan
| | | | | | - Yoko Aida
- Viral Infectious Diseases Unit, RIKEN, Wako, 351-0198 Japan
| | - Yoshie Kametani
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, 259-1193 Japan
| | - Jerzy K. Kulski
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, 259-1193 Japan
- School of Psychiatry and Clinical Neurosciences, The University of Western Australia, Crawley, WA 6009 Australia
| | - Asako Ando
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, 259-1193 Japan
| | - Hitoshi Kitagawa
- United Graduate School of Veterinary Sciences, Gifu University, Gifu, 501-1193 Japan
- Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193 Japan
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Glassman CR, Parrish HL, Deshpande NR, Kuhns MS. The CD4 and CD3δε Cytosolic Juxtamembrane Regions Are Proximal within a Compact TCR-CD3-pMHC-CD4 Macrocomplex. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2016; 196:4713-22. [PMID: 27183595 PMCID: PMC4875830 DOI: 10.4049/jimmunol.1502110] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 03/29/2016] [Indexed: 12/15/2022]
Abstract
TCRs relay information about peptides embedded within MHC molecules (pMHC) to the ITAMs of the associated CD3γε, CD3δε, and CD3ζζ signaling modules. CD4 then recruits the Src kinase p56(Lck) (Lck) to the TCR-CD3 complex to phosphorylate the ITAMs, initiate intracellular signaling, and drive CD4(+) T cell fate decisions. Whereas the six ITAMs of CD3ζζ are key determinants of T cell development, activation, and the execution of effector functions, multiple models predict that CD4 recruits Lck proximal to the four ITAMs of the CD3 heterodimers. We tested these models by placing FRET probes at the cytosolic juxtamembrane regions of CD4 and the CD3 subunits to evaluate their relationship upon pMHC engagement in mouse cell lines. The data are consistent with a compact assembly in which CD4 is proximal to CD3δε, CD3ζζ resides behind the TCR, and CD3γε is offset from CD3δε. These results advance our understanding of the architecture of the TCR-CD3-pMHC-CD4 macrocomplex and point to regions of high CD4-Lck + ITAM concentrations therein. The findings thus have implications for TCR signaling, as phosphorylation of the CD3 ITAMs by CD4-associated Lck is important for CD4(+) T cell fate decisions.
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Affiliation(s)
- Caleb R Glassman
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, AZ 85724
| | - Heather L Parrish
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, AZ 85724
| | - Neha R Deshpande
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, AZ 85724; The Arizona Center on Aging, The University of Arizona College of Medicine, Tucson, AZ 85724; and
| | - Michael S Kuhns
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, AZ 85724; The Arizona Center on Aging, The University of Arizona College of Medicine, Tucson, AZ 85724; and The BIO5 Institute, The University of Arizona College of Medicine, Tucson, AZ 85724
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40
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Jönsson P, Southcombe JH, Santos AM, Huo J, Fernandes RA, McColl J, Lever M, Evans EJ, Hudson A, Chang VT, Hanke T, Godkin A, Dunne PD, Horrocks MH, Palayret M, Screaton GR, Petersen J, Rossjohn J, Fugger L, Dushek O, Xu XN, Davis SJ, Klenerman D. Remarkably low affinity of CD4/peptide-major histocompatibility complex class II protein interactions. Proc Natl Acad Sci U S A 2016; 113:5682-7. [PMID: 27114505 PMCID: PMC4878507 DOI: 10.1073/pnas.1513918113] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The αβ T-cell coreceptor CD4 enhances immune responses more than 1 million-fold in some assays, and yet the affinity of CD4 for its ligand, peptide-major histocompatibility class II (pMHC II) on antigen-presenting cells, is so weak that it was previously unquantifiable. Here, we report that a soluble form of CD4 failed to bind detectably to pMHC II in surface plasmon resonance-based assays, establishing a new upper limit for the solution affinity at 2.5 mM. However, when presented multivalently on magnetic beads, soluble CD4 bound pMHC II-expressing B cells, confirming that it is active and allowing mapping of the native coreceptor binding site on pMHC II. Whereas binding was undetectable in solution, the affinity of the CD4/pMHC II interaction could be measured in 2D using CD4- and adhesion molecule-functionalized, supported lipid bilayers, yielding a 2D Kd of ∼5,000 molecules/μm(2) This value is two to three orders of magnitude higher than previously measured 2D Kd values for interacting leukocyte surface proteins. Calculations indicated, however, that CD4/pMHC II binding would increase rates of T-cell receptor (TCR) complex phosphorylation by threefold via the recruitment of Lck, with only a small, 2-20% increase in the effective affinity of the TCR for pMHC II. The affinity of CD4/pMHC II therefore seems to be set at a value that increases T-cell sensitivity by enhancing phosphorylation, without compromising ligand discrimination.
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Affiliation(s)
- Peter Jönsson
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom; Department of Chemistry, Lund University, SE-22100 Lund, Sweden
| | - Jennifer H Southcombe
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom; Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, United Kingdom; Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Oxford OX3 9DU, United Kingdom
| | - Ana Mafalda Santos
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom; Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Jiandong Huo
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom; Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Ricardo A Fernandes
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom; Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - James McColl
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Melissa Lever
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Edward J Evans
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom; Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Alexander Hudson
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom; Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Veronica T Chang
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom; Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Tomáš Hanke
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Andrew Godkin
- Department of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, United Kingdom
| | - Paul D Dunne
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Mathew H Horrocks
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Matthieu Palayret
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom
| | - Gavin R Screaton
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Jan Petersen
- Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia; Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, VIC 3800, Australia
| | - Jamie Rossjohn
- Department of Infection and Immunity, School of Medicine, Cardiff University, Cardiff CF14 4XN, United Kingdom; Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia; Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, VIC 3800, Australia
| | - Lars Fugger
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom; Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, United Kingdom; Nuffield Department of Clinical Neurosciences, Division of Clinical Neurology, University of Oxford, Oxford OX3 9DS, United Kingdom
| | - Omer Dushek
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Xiao-Ning Xu
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom;
| | - Simon J Davis
- MRC Human Immunology Unit, University of Oxford, Oxford OX3 9DS, United Kingdom; Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, United Kingdom;
| | - David Klenerman
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom;
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Zhou H, Chen S, Wang M, Jia R, Zhu D, Liu M, Liu F, Yang Q, Wu Y, Sun K, Chen X, Jing B, Cheng A. Antigen distribution of TMUV and GPV are coincident with the expression profiles of CD8α-positive cells and goose IFNγ. Sci Rep 2016; 6:25545. [PMID: 27150912 PMCID: PMC4858762 DOI: 10.1038/srep25545] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 04/19/2016] [Indexed: 12/14/2022] Open
Abstract
Both Tembusu virus (TMUV) and goose parvovirus (GPV) are causative agents of goose disease. However, the host immune response of the goose against these two different categories of virus has not been well documented. Here, we compared the clinical symptoms and pathological characteristics, antigen distribution and intensity, and expression of immune-related genes in TMUV- and GPV- infected goose. The immunohistochemistry analysis demonstrated that GPV was primarily located in the liver, lung, small intestine, and rectum, while TMUV was situated in the liver, brain, spleen, and small intestine. The induction of IFNγ and proinflammatory cytokines is highly associated with the distribution profiles of antigen and CD8α+ molecules. The effector function of CD8 T cells may be accomplished by the secretion of IFNγ together with high expression of proinflammatory cytokines such as IL1 and IL6. Remarkably, significant increases in the transcription of immune genes were observed after infection, which suggested that both GPV and TMUV can effectively induce immune response in goose PMBCs. This study will provide fundamental information for goose molecular immunology in defending against pandemic viruses.
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Affiliation(s)
- Hao Zhou
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Shun Chen
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Mingshu Wang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Renyong Jia
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Dekang Zhu
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Mafeng Liu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Fei Liu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Qiao Yang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Ying Wu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Kunfeng Sun
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Xiaoyue Chen
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Bo Jing
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Anchun Cheng
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan 611130, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
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42
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Parrish HL, Glassman CR, Keenen MM, Deshpande NR, Bronnimann MP, Kuhns MS. A Transmembrane Domain GGxxG Motif in CD4 Contributes to Its Lck-Independent Function but Does Not Mediate CD4 Dimerization. PLoS One 2015; 10:e0132333. [PMID: 26147390 PMCID: PMC4493003 DOI: 10.1371/journal.pone.0132333] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 06/14/2015] [Indexed: 12/24/2022] Open
Abstract
CD4 interactions with class II major histocompatibility complex (MHC) molecules are essential for CD4+ T cell development, activation, and effector functions. While its association with p56lck (Lck), a Src kinase, is important for these functions CD4 also has an Lck-independent role in TCR signaling that is incompletely understood. Here, we identify a conserved GGxxG motif in the CD4 transmembrane domain that is related to the previously described GxxxG motifs of other proteins and predicted to form a flat glycine patch in a transmembrane helix. In other proteins, these patches have been reported to mediate dimerization of transmembrane domains. Here we show that introducing bulky side-chains into this patch (GGxxG to GVxxL) impairs the Lck-independent role of CD4 in T cell activation upon TCR engagement of agonist and weak agonist stimulation. However, using Forster’s Resonance Energy Transfer (FRET), we saw no evidence that these mutations decreased CD4 dimerization either in the unliganded state or upon engagement of pMHC concomitantly with the TCR. This suggests that the CD4 transmembrane domain is either mediating interactions with an unidentified partner, or mediating some other function such as membrane domain localization that is important for its role in T cell activation.
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Affiliation(s)
- Heather L. Parrish
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, Arizona, United States of America
| | - Caleb R. Glassman
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, Arizona, United States of America
| | - Madeline M. Keenen
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, Arizona, United States of America
| | - Neha R. Deshpande
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, Arizona, United States of America
- The Arizona Center on Aging, The University of Arizona College of Medicine, Tucson, Arizona, United States of America
| | - Matthew P. Bronnimann
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, Arizona, United States of America
| | - Michael S. Kuhns
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, Arizona, United States of America
- The Arizona Center on Aging, The University of Arizona College of Medicine, Tucson, Arizona, United States of America
- The BIO-5 Institute, The University of Arizona College of Medicine, Tucson, Arizona, United States of America
- * E-mail:
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43
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Chen S, Zhou Q, Cheng B, Yan B, Yan X, Zhao Q, Wang M, Jia R, Zhu D, Liu M, Chen X, Cheng A. Age-related development and tissue distribution of T cell markers (CD4 and CD8a) in Chinese goose. Immunobiology 2015; 220:753-61. [DOI: 10.1016/j.imbio.2014.12.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 11/26/2014] [Accepted: 12/22/2014] [Indexed: 12/31/2022]
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44
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Rosenthal KS, Mikecz K, Steiner HL, Glant TT, Finnegan A, Carambula RE, Zimmerman DH. Rheumatoid arthritis vaccine therapies: perspectives and lessons from therapeutic ligand epitope antigen presentation system vaccines for models of rheumatoid arthritis. Expert Rev Vaccines 2015; 14:891-908. [PMID: 25787143 DOI: 10.1586/14760584.2015.1026330] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The current status of therapeutic vaccines for autoimmune diseases is reviewed with rheumatoid arthritis as the focus. Therapeutic vaccines for autoimmune diseases must regulate or subdue responses to common self-antigens. Ideally, such a vaccine would initiate an antigen-specific modulation of the T-cell immune response that drives the inflammatory disease. Appropriate animal models and types of T helper cells and signature cytokine responses that drive autoimmune disease are also discussed. Interpretation of these animal models must be done cautiously because the means of initiation, autoantigens, and even the signature cytokine and T helper cell (Th1 or Th17) responses that are involved in the disease may differ significantly from those in humans. We describe ligand epitope antigen presentation system vaccine modulation of T-cell autoimmune responses as a strategy for the design of therapeutic vaccines for rheumatoid arthritis, which may also be effective in other autoimmune conditions.
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45
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The coreceptor CD4 is expressed in distinct nanoclusters and does not colocalize with T-cell receptor and active protein tyrosine kinase p56lck. Proc Natl Acad Sci U S A 2015; 112:E1604-13. [PMID: 25829544 DOI: 10.1073/pnas.1503532112] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
CD4 molecules on the surface of T lymphocytes greatly augment the sensitivity and activation process of these cells, but how it functions is not fully understood. Here we studied the spatial organization of CD4, and its relationship to T-cell antigen receptor (TCR) and the active form of Src kinase p56lck (Lck) using single and dual-color photoactivated localization microscopy (PALM) and direct stochastic optical reconstruction microscopy (dSTORM). In nonactivated T cells, CD4 molecules are clustered in small protein islands, as are TCR and Lck. By dual-color imaging, we find that CD4, TCR, and Lck are localized in their separate clusters with limited interactions in the interfaces between them. Upon T-cell activation, the TCR and CD4 begin clustering together, developing into microclusters, and undergo a larger scale redistribution to form supramolecluar activation clusters (SMACs). CD4 and Lck localize in the inner TCR region of the SMAC, but this redistribution of disparate cluster structures results in enhanced segregation from each other. In nonactivated cells these preclustered structures and the limited interactions between them may serve to limit spontaneous and random activation events. However, the small sizes of these island structures also ensure large interfacial surfaces for potential interactions and signal amplification when activation is initiated. In the later activation stages, the increasingly larger clusters and their segregation from each other reduce the interfacial surfaces and could have a dampening effect. These highly differentiated spatial distributions of TCR, CD4, and Lck and their changes during activation suggest that there is a more complex hierarchy than previously thought.
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46
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Serieys LEK, Lea A, Pollinger JP, Riley SPD, Wayne RK. Disease and freeways drive genetic change in urban bobcat populations. Evol Appl 2014; 8:75-92. [PMID: 25667604 PMCID: PMC4310583 DOI: 10.1111/eva.12226] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 08/20/2014] [Indexed: 01/04/2023] Open
Abstract
Urbanization profoundly impacts animal populations by causing isolation, increased susceptibility to disease, and exposure to toxicants. Genetic effects include reduced effective population size, increased population substructure, and decreased adaptive potential. We investigated the influence that urbanization and a disease epizootic had on the population genetics of bobcats (Lynx rufus) distributed across a highly fragmented urban landscape. We genotyped more than 300 bobcats, sampled from 1996 to 2012, for variation at nine neutral and seven immune gene-linked microsatellite loci. We found that two freeways are significant barriers to gene flow. Further, a 3-year disease epizootic, associated with secondary anticoagulant rodenticide exposure, caused a population bottleneck that led to significant genetic differentiation between pre- and post-disease populations that was greater than that between populations separated by major freeways for >60 years. However, balancing selection acted on immune-linked loci during the epizootic, maintaining variation at functional regions. Conservation assessments need to assay loci that are potentially under selection to better preserve the adaptive potential of populations at the urban–wildland interface. Further, interconnected regions that contain appropriate habitat for wildlife will be critical to the long-term viability of animal populations in urban landscapes.
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Affiliation(s)
- Laurel E K Serieys
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, CA, USA
| | - Amanda Lea
- Department of Biology, Duke University Durham, NC, USA
| | - John P Pollinger
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, CA, USA
| | - Seth P D Riley
- Santa Monica Mountains National Recreation Area, National Park Service Thousand Oaks, CA, USA
| | - Robert K Wayne
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, CA, USA
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47
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Zhao Q, Liu F, Chen S, Yan X, Qi Y, Wang M, Jia R, Zhu D, Liu M, Chen X, Cheng A. Chinese goose (Anser cygnoides) CD8a: cloning, tissue distribution and immunobiological in splenic mononuclear cells. Gene 2013; 529:332-9. [PMID: 23933420 DOI: 10.1016/j.gene.2013.07.104] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 07/27/2013] [Accepted: 07/27/2013] [Indexed: 12/30/2022]
Abstract
CD8 molecule is a cell membrane glycoprotein, which plays an important role in cell-mediated immunity. Here, we identified Chinese goose CD8α (goCD8α) gene for the first time. The full-length cDNA of goCD8α is 1459bp in length and contains a 711bp open reading frame. Phylogenetic analysis shows that the waterfowl CD8α formed a monophyletic group. Semi-quantitative RT-PCR analysis showed that transcripts of goCD8α mRNA were high in the immune-related organs and mucosal immune system in gosling, and high in thymus and spleen comparing to other immune-related tissues in goose. The obvious increase of CD8α expression was observed in spleen of acute new type gosling viral enteritis virus (NGVEV) infected bird, while the increase of CD8α were observed in the thymus, bursa of fabricius, and cecum of chronic infected bird. The CD8α mRNA transcription level in spleen mononuclear cells was significantly up-regulated when stimulated by phytohemagglutinin, but not by lipopolysaccharide in vitro.
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Affiliation(s)
- Qiurong Zhao
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, 46 Xinkang Road, Ya'an, Sichuan 625014, PR China
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48
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Shen X, Niu C, König R. Increased numbers and suppressive activity of regulatory CD25(+)CD4(+) T lymphocytes in the absence of CD4 engagement by MHC class II molecules. Cell Immunol 2013; 282:117-28. [PMID: 23770721 DOI: 10.1016/j.cellimm.2013.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 04/26/2013] [Accepted: 05/06/2013] [Indexed: 11/28/2022]
Abstract
Mechanisms of central and peripheral tolerance prevent autoimmunity. Regulatory T cells inhibit the activation of potentially auto-reactive T cells in peripheral lymphoid organs. In transgenic mice in which all MHC class II molecules are incapable of binding to CD4, class II MHC-restricted T cells preferentially differentiated into immunosuppressive, regulatory T cells. In these mutant MHC class II transgenic mice, a subset of CD4(+) T cells constitutively expressed moderately elevated levels of CD25 and potently inhibited interleukin-2 secretion by T cells from normal mice in a cell-to-cell, contact-dependent manner. Immunosuppressive activity depended on activation of the regulatory T cells. Thus, CD25(+)CD4(+) T cells from mutant MHC class II transgenic mice resembled phenotypically and functionally a major subset of natural regulatory T cells in normal mice, but were two to three-times more abundant. These results further clarify the mechanisms that govern the differentiation and maintenance of CD25(+)CD4(+) regulatory T cells, and present avenues for immunomodulation.
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Affiliation(s)
- Xiaoli Shen
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX 77555-1019, USA
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49
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Yan X, Liu F, Chen S, Zhao Q, Qi Y, Wang M, Jia R, Zhu D, Chen X, Cheng A. Molecular cloning, characterization and tissue expression of CD4 in Chinese goose. Gene 2013; 519:298-304. [DOI: 10.1016/j.gene.2013.02.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Revised: 02/05/2013] [Accepted: 02/08/2013] [Indexed: 11/24/2022]
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50
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Ma Q, Su YQ, Wang J, Zhuang ZM, Tang QS. Molecular cloning and expression analysis of major histocompatibility complex class IIB gene of the Whitespotted bambooshark (Chiloscyllium plagiosum). FISH PHYSIOLOGY AND BIOCHEMISTRY 2013; 39:131-142. [PMID: 22752338 DOI: 10.1007/s10695-012-9685-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Accepted: 06/20/2012] [Indexed: 06/01/2023]
Abstract
Major histocompatibility complex (MHC) plays an important role in the immune response to antigenic peptides in vertebrates. In this study, the full length of MHC IIB cDNA was isolated from the Whitespotted bambooshark (Chiloscyllium plagiosum) by homology cloning, and the rapid amplification of cDNA ends polymerase chain reaction. As a result, the MHC IIB cDNA is 1,407 bp, which contains an open reading frame (ORF) of 831 bp encoding a protein of 276 amino acids. Furthermore, seven alleles of the complete MHC IIB ORF were detected and the variable sites were mainly located in the immunoglobulin-like (β2) region. Tissue distribution analysis showed that MHC IIB can be detected in all the ten tissues examined, with the highest expression in the spleen and gill. Challenge of C. plagiosum with the pathogenic bacteria, Vibrio harveyi, resulted in significant changes in the expression of MHC IIB mRNA in the three immune-related tissues (gill, liver and spleen). These results show that the MHC IIB plays an important role in response to bacterial infection in elasmobranches.
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Affiliation(s)
- Qian Ma
- Key Laboratory for Fishery Resources and Eco-environment, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
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