1
|
Hall TJ, McHugo GP, Mullen MP, Ward JA, Killick KE, Browne JA, Gordon SV, MacHugh DE. Integrative and comparative genomic analyses of mammalian macrophage responses to intracellular mycobacterial pathogens. Tuberculosis (Edinb) 2024; 147:102453. [PMID: 38071177 DOI: 10.1016/j.tube.2023.102453] [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: 07/17/2023] [Revised: 11/20/2023] [Accepted: 11/23/2023] [Indexed: 06/14/2024]
Abstract
Mycobacterium tuberculosis, the causative agent of human tuberculosis (hTB), is a close evolutionary relative of Mycobacterium bovis, which causes bovine tuberculosis (bTB), one of the most damaging infectious diseases to livestock agriculture. Previous studies have shown that the pathogenesis of bTB disease is comparable to hTB disease, and that the bovine and human alveolar macrophage (bAM and hAM, respectively) transcriptomes are extensively reprogrammed in response to infection with these intracellular mycobacterial pathogens. In this study, a multi-omics integrative approach was applied with functional genomics and GWAS data sets across the two primary hosts (Bos taurus and Homo sapiens) and both pathogens (M. bovis and M. tuberculosis). Four different experimental infection groups were used: 1) bAM infected with M. bovis, 2) bAM infected with M. tuberculosis, 3) hAM infected with M. tuberculosis, and 4) human monocyte-derived macrophages (hMDM) infected with M. tuberculosis. RNA-seq data from these experiments 24 h post-infection (24 hpi) was analysed using three computational pipelines: 1) differentially expressed genes, 2) differential gene expression interaction networks, and 3) combined pathway analysis. The results were integrated with high-resolution bovine and human GWAS data sets to detect novel quantitative trait loci (QTLs) for resistance to mycobacterial infection and resilience to disease. This revealed common and unique response macrophage pathways for both pathogens and identified 32 genes (12 bovine and 20 human) significantly enriched for SNPs associated with disease resistance, the majority of which encode key components of the NF-κB signalling pathway and that also drive formation of the granuloma.
Collapse
Affiliation(s)
- Thomas J Hall
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland
| | - Gillian P McHugo
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland
| | - Michael P Mullen
- Bioscience Research Institute, Technological University of the Shannon, Athlone, Westmeath, N37 HD68, Ireland
| | - James A Ward
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland
| | - Kate E Killick
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland
| | - John A Browne
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland
| | - Stephen V Gordon
- UCD School of Veterinary Medicine, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland; UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland
| | - David E MacHugh
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland; UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland.
| |
Collapse
|
2
|
Signaling Lymphocytic Activation Molecule Family Member 1 Inhibits Porcine Reproductive and Respiratory Syndrome Virus Replication. Animals (Basel) 2022; 12:ani12243542. [PMID: 36552462 PMCID: PMC9774311 DOI: 10.3390/ani12243542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/09/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022] Open
Abstract
The porcine reproductive and respiratory syndrome virus (PRRSV) causes a highly contagious disease in domestic swine. Signaling lymphocytic activation molecule family member 1 (SLAMF1) is a costimulatory factor that is involved in innate immunity, inflammation, and infection. Here, we demonstrate that overexpression of the SLAMF1 gene inhibited PRRSV replication significantly and reduced the levels of key signaling pathways, including MyD88, RIG-I, TLR2, TRIF, and inflammatory factors IL-6, IL-1β, IL-8, TNF-β, TNF-α, and IFN-α in vitro. However, the knockdown of the SLAMF1 gene could enhance replication of the PRRSV and the levels of key signaling pathways and inflammatory factors. Overall, our results identify a new, to our knowledge, antagonist of the PRRSV, as well as a novel antagonistic mechanism evolved by inhibiting innate immunity and inflammation, providing a new reference and direction for PRRSV disease resistance breeding.
Collapse
|
3
|
Pellegrini JM, Tateosian NL, Morelli MP, García VE. Shedding Light on Autophagy During Human Tuberculosis. A Long Way to Go. Front Cell Infect Microbiol 2022; 11:820095. [PMID: 35071056 PMCID: PMC8769280 DOI: 10.3389/fcimb.2021.820095] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 12/13/2021] [Indexed: 01/15/2023] Open
Abstract
Immunity against Mycobacterium tuberculosis (Mtb) is highly complex, and the outcome of the infection depends on the role of several immune mediators with particular temporal dynamics on the host microenvironment. Autophagy is a central homeostatic mechanism that plays a role on immunity against intracellular pathogens, including Mtb. Enhanced autophagy in macrophages mediates elimination of intracellular Mtb through lytic and antimicrobial properties only found in autolysosomes. Additionally, it has been demonstrated that standard anti-tuberculosis chemotherapy depends on host autophagy to coordinate successful antimicrobial responses to mycobacteria. Notably, autophagy constitutes an anti-inflammatory mechanism that protects against endomembrane damage triggered by several endogenous components or infectious agents and precludes excessive inflammation. It has also been reported that autophagy can be modulated by cytokines and other immunological signals. Most of the studies on autophagy as a defense mechanism against Mycobacterium have been performed using murine models or human cell lines. However, very limited information exists about the autophagic response in cells from tuberculosis patients. Herein, we review studies that face the autophagy process in tuberculosis patients as a component of the immune response of the human host against an intracellular microorganism such as Mtb. Interestingly, these findings might contribute to recognize new targets for the development of novel therapeutic tools to combat Mtb. Actually, either as a potential successful vaccine or a complementary immunotherapy, efforts are needed to further elucidate the role of autophagy during the immune response of the human host, which will allow to achieve protective and therapeutic benefits in human tuberculosis.
Collapse
Affiliation(s)
| | - Nancy Liliana Tateosian
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - María Paula Morelli
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Verónica Edith García
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| |
Collapse
|
4
|
Chen SD, Li HQ, Shen XN, Li JQ, Xu W, Huang YY, Tan L, Dong Q, Yu JT. Genome-Wide Association Study Identifies SLAMF1 Affecting the Rate of Memory Decline. J Alzheimers Dis 2021; 74:139-149. [PMID: 31985465 DOI: 10.3233/jad-191214] [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] [Indexed: 11/15/2022]
Abstract
BACKGROUND As cognitive function declines with age, identifying factors affecting the trajectory of cognitive decline is an indispensable step toward developing intervention strategies to improve the quality of the elderly life. OBJECTIVE We performed a genome-wide association study (GWAS) focusing on memory function to explore single nucleotide polymorphisms (SNPs) associated with the rate of memory decline. METHODS Seven hundred and nine eligible non-Hispanic Caucasians from the Alzheimer's Disease Neuroimaging Initiative (ADNI) were included for analysis after quality control. GWAS was performed with linear regression. We subsequently tested whether the associations remained significant in subgroup analysis and also examined the impact of SNPs on the longitudinal changes in other neuropsychological measures and amyloid pathology. RESULTS We identified rs13374761-A in SLAMF1 gene associated with less memory decline (MAF = 0.071, β= 0.0103, p = 4.14×10-8). Subgroup analysis showed stability of results across groups with different diagnosis at baseline. Rs13374761-A also had protective effects on global cognition (p = 0.024), episodic memory (p = 0.024), and semantic memory (p = 0.042), and exerts protection against a decrease in CSF Aβ42 concentration (p = 0.0463) and an increase in Aβ loading in cerebral cortex (p = 0.00666) among minor allele carriers. CONCLUSION A novel variant in gene SLAMF1 affects the rate of memory decline in the aged population. Given the protective effect of this variant, SLAMF1 should be further investigated as a potential preventive and therapeutic target for monitoring cognition trajectories.
Collapse
Affiliation(s)
- Shi-Dong Chen
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hong-Qi Li
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xue-Ning Shen
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jie-Qiong Li
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wei Xu
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Yu-Yuan Huang
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lan Tan
- Department of Neurology, Qingdao Municipal Hospital, Qingdao University, Qingdao, China
| | - Qiang Dong
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jin-Tai Yu
- Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | | |
Collapse
|
5
|
Shi D, Zhang Y, Tian Y. SLAMF1 Promotes Methotrexate Resistance via Activating Autophagy in Choriocarcinoma Cells. Cancer Manag Res 2020; 12:13427-13436. [PMID: 33408515 PMCID: PMC7779304 DOI: 10.2147/cmar.s278012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/14/2020] [Indexed: 12/28/2022] Open
Abstract
Objective The acquisition of chemoresistance to methotrexate (MTX) still remains one of the major challenges for choriocarcinoma treatment. Herein, we aimed to evaluate the potential role of Signaling Lymphocytic Activation Molecule Family Member 1 (SLAMF1) as a possible regulator of chemoresistance to MTX in choriocarcinoma. Material and Methods MTX-resistant JEG3 and JAR sublines (JEG3/MTX, JAR/MTX) were used to study SLAMF1 function. CCK8 assay and soft agar assay were conducted to measure the cell viability and clonogenesis of choriocarcinoma cells, respectively; MDC incorporation assay was conducted for the quantification of intracellular autophagy; BrdU labeling was used to assess the proliferative potential of choriocarcinoma cells; SLAMF1 protein expression was analyzed by Western blotting. Results Upregulation of SLAMF1 expression was observed in MTX-resistant JEG3/MTX and JAR/MTX sublines compared to their parental JEG3 and JAR cell lines, respectively. Knockdown of SLAMF1 markedly attenuated cell viability and soft agar clonogenesis after incubation with MTX in JEG3/MTX and JAR/MTX cells. In contrast, constitutive expression of SLAMF1 rescued cell survival soft agar clonogenesis in JEG3 and JAR cells treated with MTX. Moreover, autophagy is apparently activated in MTX-resistant JEG3/MTX and JAR/MTX sublines compared to their parental cell lines. Autophagy inhibitor 3-methyladenine and bafilomycin A1 enhanced MTX-induced cytotoxicity in MTX-resistant JEG3 and JAR sublines. Further, SLAMF1 might activate autophagy-related mechanism to promote resistance to MTX in choriocarcinoma cells. Depletion of SLAMF1 suppressed autophagy and induced apoptosis in MTX-treated JEG3/MTX and JAR/MTX cells. Conclusion SLAMF1 might promote MTX resistance via activating protective autophagy in choriocarcinoma cell lines. Targeting SLAMF1 might be a useful therapeutic strategy to sensitize choriocarcinoma cells to MTX-based regimens.
Collapse
Affiliation(s)
- Dazun Shi
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, Hunan Province, People's Republic of China
| | - Yu Zhang
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, Hunan Province, People's Republic of China
| | - Yan Tian
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, Hunan Province, People's Republic of China
| |
Collapse
|
6
|
Pellegrini JM, Sabbione F, Morelli MP, Tateosian NL, Castello FA, Amiano NO, Palmero D, Levi A, Ciallella L, Colombo MI, Trevani AS, García VE. Neutrophil autophagy during human active tuberculosis is modulated by SLAMF1. Autophagy 2020; 17:2629-2638. [PMID: 32954947 DOI: 10.1080/15548627.2020.1825273] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Neutrophils infected with Mycobacterium tuberculosis (Mtb) predominate in tuberculosis patients' lungs. Neutrophils phagocytose the pathogen, but the mechanism of pathogen elimination is controversial. Macroautophagy/autophagy, a crucial mechanism for several neutrophil functions, can be modulated by immunological mediators. The costimulatory molecule SLAMF1 can act as a microbial sensor in macrophages being also able to interact with autophagy-related proteins. Here, we demonstrate for the first time that human neutrophils express SLAMF1 upon Mtb-stimulation. Furthermore, SLAMF1 was found colocalizing with LC3B+ vesicles, and activation of SLAMF1 increased neutrophil autophagy induced by Mtb. Finally, tuberculosis patients' neutrophils displayed reduced levels of SLAMF1 and lower levels of autophagy against Mtb as compared to healthy controls. Altogether, these results indicate that SLAMF1 participates in neutrophil autophagy during active tuberculosis.Abbreviations: AFB: acid-fast bacilli; BafA1: bafilomycin A1; CLL: chronic lymphocytic leukemia; DPI: diphenyleneiodonium; EVs: extracellular vesicles; FBS: fetal bovine serum; HD: healthy donors; HR: high responder (tuberculosis patient); IFNG: interferon gamma; IL1B: interleukin 1 beta; IL17A: interleukin 17A; IL8: interleukin 8; LR: low responder (tuberculosis patient); mAb: monoclonal antibody; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; MAPK: mitogen-activated protein kinase; MAPK1/ERK2: mitogen-activated protein kinase 1; MAPK14/p38: mitogen-activated protein kinase 14; Mtb: Mycobacterium tuberculosis; Mtb-Ag: Mycobacterium tuberculosis, Strain H37Rv, whole cell lysate; NETs: neutrophils extracellular traps; PPD: purified protein derivative; ROS: reactive oxygen species; PIK3C3/VPS34: phosphatidylinositol 3-kinase catalytic subunit type 3; SLAMF1: signaling lymphocytic activation molecule family member 1; TB: tuberculosis; TLR: toll like receptor.
Collapse
Affiliation(s)
- Joaquín Miguel Pellegrini
- Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, UBA, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Florencia Sabbione
- Laboratorio de Inmunidad Innata, Instituto de Medicina Experimental (IMEX)-CONICET,Academia Nacional de Medicina, Buenos Aires, Argentina
| | - María Paula Morelli
- Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, UBA, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Nancy Liliana Tateosian
- Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, UBA, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Florencia Andrea Castello
- Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, UBA, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Nicolás Oscar Amiano
- Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, UBA, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Domingo Palmero
- Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN) Buenos Aires, Argentina
| | - Alberto Levi
- Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN) Buenos Aires, Argentina
| | - Lorena Ciallella
- Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN) Buenos Aires, Argentina
| | - María Isabel Colombo
- Instituto de Histología y Embriología de Mendoza, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo-CONICET, Mendoza, Argentina
| | - Analía Silvina Trevani
- Laboratorio de Inmunidad Innata, Instituto de Medicina Experimental (IMEX)-CONICET,Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Verónica Edith García
- Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, UBA, Buenos Aires, Argentina.,Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| |
Collapse
|
7
|
Barbero AM, Trotta A, Genoula M, Pino REHD, Estermann MA, Celano J, Fuentes F, García VE, Balboa L, Barrionuevo P, Pasquinelli V. SLAMF1 signaling induces Mycobacterium tuberculosis uptake leading to endolysosomal maturation in human macrophages. J Leukoc Biol 2020; 109:257-273. [PMID: 32991756 DOI: 10.1002/jlb.4ma0820-655rr] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 08/19/2020] [Accepted: 09/02/2020] [Indexed: 01/18/2023] Open
Abstract
Tuberculosis dates back to ancient times but it is not a problem of the past. Each year, millions of people die from tuberculosis. After inhalation of infectious droplet nuclei, Mycobacterium tuberculosis reaches the lungs where it can manipulate the immune system and survive within host macrophages, establishing a persistent infection. The signaling lymphocytic activation molecule family member 1 (SLAMF1) is a self-ligand receptor that can internalize gram-negative bacteria and regulate macrophages' phagosomal functions. In tuberculosis, SLAMF1 promotes Th1-protective responses. In this work, we studied the role of SLAMF1 on macrophages' functions during M. tuberculosis infection. Our results showed that both M. tuberculosis and IFN-γ stimulation induce SLAMF1 expression in macrophages from healthy donor and Tohoku Hospital Pediatrcs-1 cells. Costimulation through SLAMF1 with an agonistic antibody resulted in an enhanced internalization of M. tuberculosis by macrophages. Interestingly, we found that SLAMF1 interacts with M. tuberculosis and colocalizes with the bacteria and with early and late endosomes/lysosomes markers (EEA1 and LAMP2), suggesting that SLAMF1 recognize M. tuberculosis and participate in the endolysosomal maturation process. Notably, increased levels of SLAMF1 were detected in CD14 cells from pleural effusions of tuberculosis patients, indicating that SLAMF1 might have an active function at the site of infection. Taken together, our results provide evidence that SLAMF1 improves the uptake of M. tuberculosis by human monocyte-derived macrophages.
Collapse
Affiliation(s)
- Angela María Barbero
- Center for Basic and Applied Research (CIBA), National University of the Northwest of the Province of Buenos Aires (UNNOBA), B6000DNE, Buenos Aires, Argentina.,Center for Research and Transfers of the Northwest of the Province of Buenos Aires (CIT NOBA), UNNOBA-National University of San Antonio de Areco (UNSAdA) - National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Aldana Trotta
- Institute of Experimental Medicine (CONICET-National Academy of Medicine), C1425ASU, Buenos Aires, Argentina
| | - Melanie Genoula
- Institute of Experimental Medicine (CONICET-National Academy of Medicine), C1425ASU, Buenos Aires, Argentina
| | - Rodrigo Emanuel Hernández Del Pino
- Center for Basic and Applied Research (CIBA), National University of the Northwest of the Province of Buenos Aires (UNNOBA), B6000DNE, Buenos Aires, Argentina.,Center for Research and Transfers of the Northwest of the Province of Buenos Aires (CIT NOBA), UNNOBA-National University of San Antonio de Areco (UNSAdA) - National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Martín Andrés Estermann
- Center for Basic and Applied Research (CIBA), National University of the Northwest of the Province of Buenos Aires (UNNOBA), B6000DNE, Buenos Aires, Argentina.,Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Victoria, Clayton, Australia
| | - Josefina Celano
- Center for Basic and Applied Research (CIBA), National University of the Northwest of the Province of Buenos Aires (UNNOBA), B6000DNE, Buenos Aires, Argentina
| | - Federico Fuentes
- Institute of Experimental Medicine (CONICET-National Academy of Medicine), C1425ASU, Buenos Aires, Argentina
| | - Verónica Edith García
- CONICET-University of Buenos Aires, Institute of Biological Chemistry of Exact and Natural Sciences (IQUIBICEN), C1428EHA, Buenos Aires, Argentina.,University of Buenos Aires, School of Sciences, Department of Biological Chemistry, C1428EHA, Buenos Aires, Argentina
| | - Luciana Balboa
- Institute of Experimental Medicine (CONICET-National Academy of Medicine), C1425ASU, Buenos Aires, Argentina
| | - Paula Barrionuevo
- Institute of Experimental Medicine (CONICET-National Academy of Medicine), C1425ASU, Buenos Aires, Argentina
| | - Virginia Pasquinelli
- Center for Basic and Applied Research (CIBA), National University of the Northwest of the Province of Buenos Aires (UNNOBA), B6000DNE, Buenos Aires, Argentina.,Center for Research and Transfers of the Northwest of the Province of Buenos Aires (CIT NOBA), UNNOBA-National University of San Antonio de Areco (UNSAdA) - National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| |
Collapse
|
8
|
Kaur S, Changotra H. The beclin 1 interactome: Modification and roles in the pathology of autophagy-related disorders. Biochimie 2020; 175:34-49. [PMID: 32428566 DOI: 10.1016/j.biochi.2020.04.025] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/18/2020] [Accepted: 04/28/2020] [Indexed: 12/15/2022]
Abstract
Beclin 1 a yeast Atg6/VPS30 orthologue has a significant role in autophagy process (Macroautophagy) and protein sorting. The function of beclin 1 depends on the interaction with several autophagy-related genes (Atgs) and other proteins during the autophagy process. The role mediated by beclin 1 is controlled by various conditions and factors. Beclin 1 is regulated at the gene and protein levels by different factors. These regulations could subsequently alter the beclin 1 induced autophagy process. Therefore, it is important to study the components of beclin 1 interactome and factors affecting its expression. Expression of this gene is differentially regulated under different conditions in different cells or tissues. So, the regulation part is important to study as beclin 1 is one of the candidate genes involved in diseases related to autophagy dysfunction. This review focuses on the functions of beclin 1, its interacting partners, regulations at gene and protein level, and the role of beclin 1 interactome in relation to various diseases along with the recent developments in the field.
Collapse
Affiliation(s)
- Sargeet Kaur
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Solan, 173 234, Himachal Pradesh, India
| | - Harish Changotra
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Solan, 173 234, Himachal Pradesh, India.
| |
Collapse
|
9
|
Degos C, Hysenaj L, Gonzalez‐Espinoza G, Arce‐Gorvel V, Gagnaire A, Papadopoulos A, Pasquevich KA, Méresse S, Cassataro J, Mémet S, Gorvel J. Omp25‐dependent engagement of SLAMF1 byBrucella abortusin dendritic cells limits acute inflammation and favours bacterial persistence in vivo. Cell Microbiol 2020; 22:e13164. [DOI: 10.1111/cmi.13164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/10/2019] [Accepted: 12/16/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Clara Degos
- CNRS, INSERM, CIML, Centre d'Immunologie de Marseille‐LuminyAix‐Marseille University Marseille France
| | - Lisiena Hysenaj
- CNRS, INSERM, CIML, Centre d'Immunologie de Marseille‐LuminyAix‐Marseille University Marseille France
| | | | - Vilma Arce‐Gorvel
- CNRS, INSERM, CIML, Centre d'Immunologie de Marseille‐LuminyAix‐Marseille University Marseille France
| | - Aurélie Gagnaire
- CNRS, INSERM, CIML, Centre d'Immunologie de Marseille‐LuminyAix‐Marseille University Marseille France
| | - Alexia Papadopoulos
- CNRS, INSERM, CIML, Centre d'Immunologie de Marseille‐LuminyAix‐Marseille University Marseille France
| | - Karina Alejandra Pasquevich
- Instituto de Investigaciones BiotecnológicasUniversidad Nacional de San Martín (UNSAM)‐CONICET Buenos Aires Argentina
| | - Stéphane Méresse
- CNRS, INSERM, CIML, Centre d'Immunologie de Marseille‐LuminyAix‐Marseille University Marseille France
| | - Juliana Cassataro
- Instituto de Investigaciones BiotecnológicasUniversidad Nacional de San Martín (UNSAM)‐CONICET Buenos Aires Argentina
| | - Sylvie Mémet
- CNRS, INSERM, CIML, Centre d'Immunologie de Marseille‐LuminyAix‐Marseille University Marseille France
| | - Jean‐Pierre Gorvel
- CNRS, INSERM, CIML, Centre d'Immunologie de Marseille‐LuminyAix‐Marseille University Marseille France
| |
Collapse
|
10
|
Chaudhary A, Kamischke C, Leite M, Altura MA, Kinman L, Kulasekara H, Blanc MP, Wang G, Terhorst C, Miller SI. β-Barrel outer membrane proteins suppress mTORC2 activation and induce autophagic responses. Sci Signal 2018; 11:11/558/eaat7493. [PMID: 30482849 DOI: 10.1126/scisignal.aat7493] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The outer membranes of Gram-negative bacteria and mitochondria contain proteins with a distinct β-barrel tertiary structure that could function as a molecular pattern recognized by the innate immune system. Here, we report that purified outer membrane proteins (OMPs) from different bacterial and mitochondrial sources triggered the induction of autophagy-related endosomal acidification, LC3B lipidation, and p62 degradation. Furthermore, OMPs reduced the phosphorylation and therefore activation of the multiprotein complex mTORC2 and its substrate Akt in macrophages and epithelial cells. The cell surface receptor SlamF8 and the DNA-protein kinase subunit XRCC6 were required for these OMP-specific responses in macrophages and epithelial cells, respectively. The addition of OMPs to mouse bone marrow-derived macrophages infected with Salmonella Typhimurium facilitated bacterial clearance. These data identify a specific cellular response mediated by bacterial and mitochondrial OMPs that can alter inflammatory responses and influence the killing of pathogens.
Collapse
Affiliation(s)
- Anu Chaudhary
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA.,Department of Laboratory Medicine, University of Washington, Seattle, WA 98195, USA
| | - Cassandra Kamischke
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Mara Leite
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Melissa A Altura
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Loren Kinman
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Hemantha Kulasekara
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Marie-Pierre Blanc
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Guoxing Wang
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
| | - Cox Terhorst
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
| | - Samuel I Miller
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA. .,Department of Immunology, University of Washington, Seattle, WA 98195, USA.,Department of Medicine, University of Washington, Seattle, WA 98195, USA.,Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA
| |
Collapse
|
11
|
Gordiienko I, Shlapatska L, Kovalevska L, Sidorenko SP. SLAMF1/CD150 in hematologic malignancies: Silent marker or active player? Clin Immunol 2018; 204:14-22. [PMID: 30616923 DOI: 10.1016/j.clim.2018.10.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 10/23/2018] [Accepted: 10/23/2018] [Indexed: 12/12/2022]
Abstract
SLAMF1/CD150 receptor is a founder of signaling lymphocyte activation molecule (SLAM) family of cell-surface receptors. It is widely expressed on cells within hematopoietic system. In hematologic malignancies CD150 cell surface expression is restricted to cutaneous T-cell lymphomas, few types of B-cell non-Hodgkin's lymphoma, near half of cases of chronic lymphocytic leukemia, Hodgkin's lymphoma, and multiple myeloma. Differential expression among various types of hematological malignancies allows considering CD150 as diagnostical and potential prognostic marker. Moreover, CD150 may be a target for antibody-based or measles virus oncolytic therapy. Due to CD150 signaling properties it is involved in regulation of malignant cell fate decision and tumor microenvironment in Hodgkin's lymphoma and chronic lymphocytic leukemia. This review summarizes evidence for the important role of CD150 in pathogenesis of hematologic malignancies.
Collapse
Affiliation(s)
- Inna Gordiienko
- Department of Molecular and Cellular Pathobiology, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology National Academy of Sciences of Ukraine, Kyiv, Ukraine.
| | - Larysa Shlapatska
- Department of Molecular and Cellular Pathobiology, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Larysa Kovalevska
- Department of Molecular and Cellular Pathobiology, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Svetlana P Sidorenko
- Department of Molecular and Cellular Pathobiology, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology National Academy of Sciences of Ukraine, Kyiv, Ukraine
| |
Collapse
|
12
|
Yigit B, Wang N, Herzog RW, Terhorst C. SLAMF6 in health and disease: Implications for therapeutic targeting. Clin Immunol 2018; 204:3-13. [PMID: 30366106 DOI: 10.1016/j.clim.2018.10.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 10/22/2018] [Accepted: 10/22/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Burcu Yigit
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
| | - Ninghai Wang
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Roland W Herzog
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Cox Terhorst
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
13
|
Yurchenko M, Skjesol A, Ryan L, Richard GM, Kandasamy RK, Wang N, Terhorst C, Husebye H, Espevik T. SLAMF1 is required for TLR4-mediated TRAM-TRIF-dependent signaling in human macrophages. J Cell Biol 2018; 217:1411-1429. [PMID: 29440514 PMCID: PMC5881497 DOI: 10.1083/jcb.201707027] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 10/31/2017] [Accepted: 12/20/2017] [Indexed: 12/24/2022] Open
Abstract
Yurchenko et al. discover that the Ig-like receptor molecule SLAMF1 enhances production of type I interferon induced by Gram-negative bacteria through modulation of MyD88-independent TLR4 signaling. This makes SLAMF1 a potential target for controlling inflammatory responses against Gram-negative bacteria. Signaling lymphocytic activation molecule family 1 (SLAMF1) is an Ig-like receptor and a costimulatory molecule that initiates signal transduction networks in a variety of immune cells. In this study, we report that SLAMF1 is required for Toll-like receptor 4 (TLR4)-mediated induction of interferon β (IFNβ) and for killing of Gram-negative bacteria by human macrophages. We found that SLAMF1 controls trafficking of the Toll receptor–associated molecule (TRAM) from the endocytic recycling compartment (ERC) to Escherichia coli phagosomes. In resting macrophages, SLAMF1 is localized to ERC, but upon addition of E. coli, it is trafficked together with TRAM from ERC to E. coli phagosomes in a Rab11-dependent manner. We found that endogenous SLAMF1 protein interacted with TRAM and defined key interaction domains as amino acids 68 to 95 of TRAM as well as 15 C-terminal amino acids of SLAMF1. Interestingly, the SLAMF1–TRAM interaction was observed for human but not mouse proteins. Overall, our observations suggest that SLAMF1 is a new target for modulation of TLR4–TRAM–TRIF inflammatory signaling in human cells.
Collapse
Affiliation(s)
- Maria Yurchenko
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway .,The Central Norway Regional Health Authority, St. Olavs Hospital HF, Trondheim, Norway
| | - Astrid Skjesol
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway
| | - Liv Ryan
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway
| | - Gabriel Mary Richard
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway
| | - Richard Kumaran Kandasamy
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway
| | - Ninghai Wang
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Cox Terhorst
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Harald Husebye
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway.,The Central Norway Regional Health Authority, St. Olavs Hospital HF, Trondheim, Norway
| | - Terje Espevik
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway.,The Central Norway Regional Health Authority, St. Olavs Hospital HF, Trondheim, Norway
| |
Collapse
|
14
|
Agod Z, Pazmandi K, Bencze D, Vereb G, Biro T, Szabo A, Rajnavolgyi E, Bacsi A, Engel P, Lanyi A. Signaling Lymphocyte Activation Molecule Family 5 Enhances Autophagy and Fine-Tunes Cytokine Response in Monocyte-Derived Dendritic Cells via Stabilization of Interferon Regulatory Factor 8. Front Immunol 2018; 9:62. [PMID: 29434592 PMCID: PMC5790988 DOI: 10.3389/fimmu.2018.00062] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 01/10/2018] [Indexed: 12/20/2022] Open
Abstract
Signaling lymphocyte activation molecule family (SLAMF) receptors are essential regulators of innate and adaptive immune responses. The function of SLAMF5/CD84, a family member with almost ubiquitous expression within the hematopoietic lineage is poorly defined. In this article, we provide evidence that in human monocyte-derived dendritic cells (moDCs) SLAMF5 increases autophagy, a degradative pathway, which is highly active in dendritic cells (DCs) and plays a critical role in orchestration of the immune response. While investigating the underlying mechanism, we found that SLAMF5 inhibited proteolytic degradation of interferon regulatory factor 8 (IRF8) a master regulator of the autophagy process by a mechanism dependent on the E3-ubiquitin ligase tripartite motif-containing protein 21 (TRIM21). Furthermore, we demonstrate that SLAMF5 influences the ratio of CD1a+ cells in differentiating DCs and partakes in the regulation of IL-1β, IL-23, and IL-12 production in LPS/IFNγ-activated moDCs in a manner that is consistent with its effect on IRF8 stability. In summary, our experiments identified SLAMF5 as a novel cell surface receptor modulator of autophagy and revealed an unexpected link between the SLAMF and IRF8 signaling pathways, both implicated in multiple human pathologies.
Collapse
Affiliation(s)
- Zsofia Agod
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Kitti Pazmandi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Dora Bencze
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gyorgy Vereb
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tamas Biro
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Attila Szabo
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Department of Bioengineering, Sapientia Hungarian University of Transylvania, Cluj-Napoca, Romania
| | - Eva Rajnavolgyi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Department of Bioengineering, Sapientia Hungarian University of Transylvania, Cluj-Napoca, Romania
| | - Attila Bacsi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Department of Bioengineering, Sapientia Hungarian University of Transylvania, Cluj-Napoca, Romania
| | - Pablo Engel
- Department of Biomedical Sciences, Medical School, University of Barcelona, Barcelona, Spain
| | - Arpad Lanyi
- Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Department of Bioengineering, Sapientia Hungarian University of Transylvania, Cluj-Napoca, Romania
| |
Collapse
|
15
|
Yigit B, Halibozek PJ, Chen SS, O'Keeffe MS, Arnason J, Avigan D, Gattei V, Bhan A, Cen O, Longnecker R, Chiorazzi N, Wang N, Engel P, Terhorst C. A combination of an anti-SLAMF6 antibody and ibrutinib efficiently abrogates expansion of chronic lymphocytic leukemia cells. Oncotarget 2018; 7:26346-60. [PMID: 27029059 PMCID: PMC5041984 DOI: 10.18632/oncotarget.8378] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 03/07/2016] [Indexed: 11/25/2022] Open
Abstract
The signaling lymphocyte activation molecule family [SLAMF] of cell surface receptors partakes in both the development of several immunocyte lineages and innate and adaptive immune responses in humans and mice. For instance, the homophilic molecule SLAMF6 (CD352) is in part involved in natural killer T cell development, but also modulates T follicular helper cell and germinal B cell interactions. Here we report that upon transplantation of a well-defined aggressive murine B220+CD5+ Chronic Lymphocytic Leukemia (CLL) cell clone, TCL1-192, into SCID mice one injection of a monoclonal antibody directed against SLAMF6 (αSlamf6) abrogates tumor progression in the spleen, bone marrow and blood. Similarly, progression of a murine B cell lymphoma, LMP2A/λMyc, was also eliminated by αSlamf6. But, surprisingly, αSLAMF6 neither eliminated TCL1-192 nor LMP2A/λMyc cells, which resided in the peritoneal cavity or omentum. This appeared to be dependent upon the tumor environment, which affected the frequency of sub-populations of the TCL1-192 clone or the inability of peritoneal macrophages to induce Antibody Dependent Cellular Cytotoxicity (ADCC). However, co-administering αSlamf6 with the Bruton tyrosine kinase (Btk) inhibitor, ibrutinib, synergized to efficiently eliminate the tumor cells in the spleen, bone marrow, liver and the peritoneal cavity. Because an anti-human SLAMF6 mAb efficiently killed human CLL cells in vitro and in vivo, we propose that a combination of αSlamf6 with ibrutinib should be considered as a novel therapeutic approach for CLL and other B cell tumors.
Collapse
Affiliation(s)
- Burcu Yigit
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Peter J Halibozek
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Shih-Shih Chen
- Karches Center for Chronic Lymphocytic Leukemia Research, The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Michael S O'Keeffe
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Jon Arnason
- Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - David Avigan
- Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Valter Gattei
- Clinical and Experimental Onco-Hematology Unit, Centro di Riferimento Oncologico, I.R.C.C.S., Aviano, Italy
| | - Atul Bhan
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Osman Cen
- Department of Microbiology and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Richard Longnecker
- Department of Microbiology and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Nicholas Chiorazzi
- Karches Center for Chronic Lymphocytic Leukemia Research, The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Ninghai Wang
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Pablo Engel
- Immunology Unit, Department of Cell Biology, Immunology and Neurosciences, Medical School, University of Barcelona, Barcelona, Spain
| | - Cox Terhorst
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
16
|
Reprogramming of pro-inflammatory human macrophages to an anti-inflammatory phenotype by bile acids. Sci Rep 2018; 8:255. [PMID: 29321478 PMCID: PMC5762890 DOI: 10.1038/s41598-017-18305-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 12/04/2017] [Indexed: 12/11/2022] Open
Abstract
Cholestasis is caused by autoimmune reactions, drug-induced hepatotoxicity, viral infections of the liver and the obstruction of bile ducts by tumours or gallstones. Cholestatic conditions are associated with impaired innate and adaptive immunity, including alterations of the cellular functions of monocytes, macrophages, NK cells and T-cells. Bile acids act as signalling molecules, affecting lipopolysaccharide (LPS)-induced cytokine expression in primary human macrophages. The present manuscript investigates the impact of bile acids, such as taurolithocholic acid (TLC), on the transcriptome of human macrophages in the presence or absence of LPS. While TLC itself has almost no effect on gene expression under control conditions, this compound modulates the expression of 202 out of 865 transcripts in the presence of LPS. Interestingly, pathway analysis revealed that TLC specifically supressed the expression of genes involved in mediating pro-inflammatory effects, phagocytosis, interactions with pathogens and autophagy as well as the recruitment of immune cells, such as NK cells, neutrophils and T cells. These data indicate a broad influence of bile acids on inflammatory responses and immune functions in macrophages. These findings may contribute to the clinical observation that patients with cholestasis present a lack of response to bacterial or viral infections.
Collapse
|
17
|
A functional genomics predictive network model identifies regulators of inflammatory bowel disease. Nat Genet 2017; 49:1437-1449. [PMID: 28892060 PMCID: PMC5660607 DOI: 10.1038/ng.3947] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 08/11/2017] [Indexed: 02/07/2023]
Abstract
A major challenge in inflammatory bowel disease (IBD) is the integration of diverse IBD data sets to construct predictive models of IBD. We present a predictive model of the immune component of IBD that informs causal relationships among loci previously linked to IBD through genome-wide association studies (GWAS) using functional and regulatory annotations that relate to the cells, tissues, and pathophysiology of IBD. Our model consists of individual networks constructed using molecular data generated from intestinal samples isolated from three populations of patients with IBD at different stages of disease. We performed key driver analysis to identify genes predicted to modulate network regulatory states associated with IBD, prioritizing and prospectively validating 12 of the top key drivers experimentally. This validated key driver set not only introduces new regulators of processes central to IBD but also provides the integrated circuits of genetic, molecular, and clinical traits that can be directly queried to interrogate and refine the regulatory framework defining IBD.
Collapse
|
18
|
The intricate regulation and complex functions of the Class III phosphoinositide 3-kinase Vps34. Biochem J 2017; 473:2251-71. [PMID: 27470591 DOI: 10.1042/bcj20160170] [Citation(s) in RCA: 156] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 03/30/2016] [Indexed: 11/17/2022]
Abstract
The Class III phosphoinositide 3-kinase Vps34 (vacuolar protein sorting 34) plays important roles in endocytic trafficking, macroautophagy, phagocytosis, cytokinesis and nutrient sensing. Recent studies have provided exciting new insights into the structure and regulation of this lipid kinase, and new cellular functions for Vps34 have emerged. This review critically examines the wealth of new data on this important enzyme, and attempts to integrate these findings with current models of Vps34 signalling.
Collapse
|
19
|
Xu F, Fang Y, Yan L, Xu L, Zhang S, Cao Y, Xu L, Zhang X, Xie J, Jiang G, Ge C, An N, Zhou D, Yuan N, Wang J. Nuclear localization of Beclin 1 promotes radiation-induced DNA damage repair independent of autophagy. Sci Rep 2017; 7:45385. [PMID: 28345663 PMCID: PMC5366945 DOI: 10.1038/srep45385] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 02/23/2017] [Indexed: 12/27/2022] Open
Abstract
Beclin 1 is a well-established core mammalian autophagy protein that is embryonically indispensable and has been presumed to suppress oncogenesis via an autophagy-mediated mechanism. Here, we show that Beclin 1 is a prenatal primary cytoplasmic protein but rapidly relocated into the nucleus during postnatal development in mice. Surprisingly, deletion of beclin1 in in vitro human cells did not block an autophagy response, but attenuated the expression of several DNA double-strand break (DSB) repair proteins and formation of repair complexes, and reduced an ability to repair DNA in the cells exposed to ionizing radiation (IR). Overexpressing Beclin 1 improved the repair of IR-induced DSB, but did not restore an autophagy response in cells lacking autophagy gene Atg7, suggesting that Beclin 1 may regulate DSB repair independent of autophagy in the cells exposed to IR. Indeed, we found that Beclin 1 could directly interact with DNA topoisomerase IIβ and was recruited to the DSB sites by the interaction. These findings reveal a novel function of Beclin 1 in regulation of DNA damage repair independent of its role in autophagy particularly when the cells are under radiation insult.
Collapse
Affiliation(s)
- Fei Xu
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Yixuan Fang
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Lili Yan
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Lan Xu
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Suping Zhang
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
- Jiangsu Institute of Hematology, Jiangsu Key Laboratory for Stem Cell Research, The First Affiliated Hospital, Soochow University School of Medicine, Suzhou 215123, China
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas Medical Sciences, Little Rock, Arkansas 72205, USA
| | - Yan Cao
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Li Xu
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Xiaoying Zhang
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Jialing Xie
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Gaoyue Jiang
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Chaorong Ge
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Ni An
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
| | - Daohong Zhou
- Division of Radiation Health, Department of Pharmaceutical Sciences, University of Arkansas Medical Sciences, Little Rock, Arkansas 72205, USA
| | - Na Yuan
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
- Jiangsu Institute of Hematology, Jiangsu Key Laboratory for Stem Cell Research, The First Affiliated Hospital, Soochow University School of Medicine, Suzhou 215123, China
| | - Jianrong Wang
- Hematology Center of Cyrus Tang Medical Institute, Collaborative Innovation Center of Hematology, Soochow University School of Medicine, Suzhou 215123, China
- Jiangsu Institute of Hematology, Jiangsu Key Laboratory for Stem Cell Research, The First Affiliated Hospital, Soochow University School of Medicine, Suzhou 215123, China
| |
Collapse
|
20
|
Mei Y, Glover K, Su M, Sinha SC. Conformational flexibility of BECN1: Essential to its key role in autophagy and beyond. Protein Sci 2016; 25:1767-85. [PMID: 27414988 DOI: 10.1002/pro.2984] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 07/09/2016] [Accepted: 07/12/2016] [Indexed: 01/16/2023]
Abstract
BECN1 (Beclin 1), a highly conserved eukaryotic protein, is a key regulator of autophagy, a cellular homeostasis pathway, and also participates in vacuolar protein sorting, endocytic trafficking, and apoptosis. BECN1 is important for embryonic development, the innate immune response, tumor suppression, and protection against neurodegenerative disorders, diabetes, and heart disease. BECN1 mediates autophagy as a core component of the class III phosphatidylinositol 3-kinase complexes. However, the exact mechanism by which it regulates the activity of these complexes, or mediates its other diverse functions is unclear. BECN1 interacts with several diverse protein partners, perhaps serving as a scaffold or interaction hub for autophagy. Based on extensive structural, biophysical and bioinformatics analyses, BECN1 consists of an intrinsically disordered region (IDR), which includes a BH3 homology domain (BH3D); a flexible helical domain (FHD); a coiled-coil domain (CCD); and a β-α-repeated autophagy-specific domain (BARAD). Each of these BECN1 domains mediates multiple diverse interactions that involve concomitant conformational changes. Thus, BECN1 conformational flexibility likely plays a key role in facilitating diverse protein interactions. Further, BECN1 conformation and interactions are also modulated by numerous post-translational modifications. A better structure-based understanding of the interplay between different BECN1 conformational and binding states, and the impact of post-translational modifications will be essential to elucidating the mechanism of its multiple biological roles.
Collapse
Affiliation(s)
- Yang Mei
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota, 58108-6050
| | - Karen Glover
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota, 58108-6050
| | - Minfei Su
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota, 58108-6050
| | - Sangita C Sinha
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota, 58108-6050.
| |
Collapse
|
21
|
Chaudhary A, Leite M, Kulasekara BR, Altura MA, Ogahara C, Weiss E, Fu W, Blanc MP, O'Keeffe M, Terhorst C, Akey JM, Miller SI. Human Diversity in a Cell Surface Receptor that Inhibits Autophagy. Curr Biol 2016; 26:1791-801. [PMID: 27345162 DOI: 10.1016/j.cub.2016.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 04/27/2016] [Accepted: 05/03/2016] [Indexed: 02/01/2023]
Abstract
Mutations in genes encoding autophagy proteins have been associated with human autoimmune diseases, suggesting that diversity in autophagy responses could be associated with disease susceptibility or severity. A cellular genome-wide association study (GWAS) screen was performed to explore normal human diversity in responses to rapamycin, a microbial product that induces autophagy. Cells from several human populations demonstrated variability in expression of a cell surface receptor, CD244 (SlamF4, 2B4), that correlated with changes in rapamycin-induced autophagy. High expression of CD244 and receptor activation with its endogenous ligand CD48 inhibited starvation- and rapamycin-induced autophagy by promoting association of CD244 with the autophagy complex proteins Vps34 and Beclin-1. The association of CD244 with this complex reduced Vps34 lipid kinase activity. Lack of CD244 is associated with auto-antibody production in mice, and lower expression of human CD244 has previously been implicated in severity of human rheumatoid arthritis and systemic lupus erythematosus, indicating that increased autophagy as a result of low levels of CD244 may alter disease outcomes.
Collapse
Affiliation(s)
- Anu Chaudhary
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Mara Leite
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | | | - Melissa A Altura
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Cassandra Ogahara
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Eli Weiss
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Wenqing Fu
- Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA
| | - Marie-Pierre Blanc
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Michael O'Keeffe
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
| | - Cox Terhorst
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
| | - Joshua M Akey
- Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA
| | - Samuel I Miller
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA; Department of Immunology, University of Washington, Seattle, WA 98195, USA; Department of Medicine, University of Washington, Seattle, WA 98195, USA; Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA.
| |
Collapse
|
22
|
Haslund-Vinding J, McBean G, Jaquet V, Vilhardt F. NADPH oxidases in oxidant production by microglia: activating receptors, pharmacology and association with disease. Br J Pharmacol 2016; 174:1733-1749. [PMID: 26750203 DOI: 10.1111/bph.13425] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 12/15/2015] [Accepted: 01/07/2016] [Indexed: 12/26/2022] Open
Abstract
Microglia are the resident immune cells of the CNS and constitute a self-sustaining population of CNS-adapted tissue macrophages. As mononuclear phagocytic cells, they express high levels of superoxide-producing NADPH oxidases (NOX). The sole function of the members of the NOX family is to generate reactive oxygen species (ROS) that are believed to be important in CNS host defence and in the redox signalling circuits that shape the different activation phenotypes of microglia. NOX are also important in pathological conditions, where over-generation of ROS contributes to neuronal loss via direct oxidative tissue damage or disruption of redox signalling circuits. In this review, we assess the evidence for involvement of NOX in CNS physiopathology, with particular emphasis on the most important surface receptors that lead to generation of NOX-derived ROS. We evaluate the potential significance of the subcellular distribution of NOX isoforms for redox signalling or release of ROS to the extracellular medium. Inhibitory mechanisms that have been reported to restrain NOX activity in microglia and macrophages in vivo are also discussed. We provide a critical appraisal of frequently used and recently developed NOX inhibitors. Finally, we review the recent literature on NOX and other sources of ROS that are involved in activation of the inflammasome and discuss the potential influence of microglia-derived oxidants on neurogenesis, neural differentiation and culling of surplus progenitor cells. The degree to which excessive, badly timed or misplaced NOX activation in microglia may affect neuronal homeostasis in physiological or pathological conditions certainly merits further investigation. LINKED ARTICLES This article is part of a themed section on Redox Biology and Oxidative Stress in Health and Disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.12/issuetoc.
Collapse
Affiliation(s)
- J Haslund-Vinding
- Institute of Cellular and Molecular Medicine, Copenhagen University, Copenhagen, Denmark.,Department of Pathology and Immunology, Centre Médical Universitaire, Geneva, Switzerland
| | - G McBean
- UCD School of Biomolecular and Biomedical Science, University College Dublin, Ireland
| | - V Jaquet
- Department of Pathology and Immunology, Centre Médical Universitaire, Geneva, Switzerland
| | - F Vilhardt
- Institute of Cellular and Molecular Medicine, Copenhagen University, Copenhagen, Denmark
| |
Collapse
|
23
|
van Driel BJ, Liao G, Engel P, Terhorst C. Responses to Microbial Challenges by SLAMF Receptors. Front Immunol 2016; 7:4. [PMID: 26834746 PMCID: PMC4718992 DOI: 10.3389/fimmu.2016.00004] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 01/06/2016] [Indexed: 12/24/2022] Open
Abstract
The SLAMF family (SLAMF) of cell surface glycoproteins is comprised of nine glycoproteins and while SLAMF1, 3, 5, 6, 7, 8, and 9 are self-ligand receptors, SLAMF2 and SLAMF4 interact with each other. Their interactions induce signal transduction networks in trans, thereby shaping immune cell-cell communications. Collectively, these receptors modulate a wide range of functions, such as myeloid cell and lymphocyte development, and T and B cell responses to microbes and parasites. In addition, several SLAMF receptors serve as microbial sensors, which either positively or negatively modulate the function of macrophages, dendritic cells, neutrophils, and NK cells in response to microbial challenges. The SLAMF receptor-microbe interactions contribute both to intracellular microbicidal activity as well as to migration of phagocytes to the site of inflammation. In this review, we describe the current knowledge on how the SLAMF receptors and their specific adapters SLAM-associated protein and EAT-2 regulate innate and adaptive immune responses to microbes.
Collapse
Affiliation(s)
- Boaz Job van Driel
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, MA , USA
| | - Gongxian Liao
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, MA , USA
| | - Pablo Engel
- Immunology Unit, Department of Cell Biology, Immunology and Neurosciences, Medical School, University of Barcelona , Barcelona , Spain
| | - Cox Terhorst
- Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, MA , USA
| |
Collapse
|
24
|
van Driel B, Wang G, Liao G, Halibozek PJ, Keszei M, O'Keeffe MS, Bhan AK, Wang N, Terhorst C. The cell surface receptor Slamf6 modulates innate immune responses during Citrobacter rodentium-induced colitis. Int Immunol 2015; 27:447-57. [PMID: 25957267 PMCID: PMC4560040 DOI: 10.1093/intimm/dxv029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Accepted: 04/28/2015] [Indexed: 12/21/2022] Open
Abstract
The homophilic cell surface receptors CD150 (Slamf1) and CD352 (Slamf6) are known to modulate adaptive immune responses. Although the Th17 response was enhanced in Slamf6(-/-) C57BL/6 mice upon oral infection with Citrobacter rodentium, the pathologic consequences are indistinguishable from an infection of wild-type C57BL/6 mice. Using a reporter-based binding assay, we show that Slamf6 can engage structures on the outer cell membrane of several Gram(-) bacteria. Therefore, we examined whether Slamf6, like Slamf1, is also involved in innate responses to bacteria and regulates peripheral inflammation by assessing the outcome of C. rodentium infections in Rag(-/-) mice. Surprisingly, the pathology and immune responses in the lamina propria of C. rodentium-infected Slamf6(-/-) Rag(-/-) mice were markedly reduced as compared with those of Rag(-/-) mice. Infiltration of inflammatory phagocytes into the lamina propria was consistently lower in Slamf6(-/-) Rag(-/-) mice than in Rag(-/-) animals. Concomitant with the reduced systemic translocation of the bacteria was an enhanced production of IL-22, suggesting that Slamf6 suppresses a mucosal protective program. Furthermore, administering a mAb (330) that inhibits bacterial interactions with Slamf6 to Rag(-/-) mice ameliorated the infection compared with a control antibody. We conclude that Slamf6-mediated interactions of colonic innate immune cells with specific Gram(-) bacteria reduce mucosal protection and enhance inflammation, contributing to lethal colitis that is caused by C. rodentium infections in Rag(-/-) mice.
Collapse
Affiliation(s)
- Boaz van Driel
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston 02115, MA, USA
| | - Guoxing Wang
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston 02115, MA, USA
| | - Gongxian Liao
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston 02115, MA, USA
| | - Peter J Halibozek
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston 02115, MA, USA
| | - Marton Keszei
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston 02115, MA, USA
| | - Michael S O'Keeffe
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston 02115, MA, USA
| | - Atul K Bhan
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston 02114, MA, USA
| | - Ninghai Wang
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston 02115, MA, USA
| | - Cox Terhorst
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston 02115, MA, USA
| |
Collapse
|
25
|
Wang G, van Driel BJ, Liao G, O’Keeffe MS, Halibozek PJ, Flipse J, Yigit B, Azcutia V, Luscinskas FW, Wang N, Terhorst C. Migration of myeloid cells during inflammation is differentially regulated by the cell surface receptors Slamf1 and Slamf8. PLoS One 2015; 10:e0121968. [PMID: 25799045 PMCID: PMC4370648 DOI: 10.1371/journal.pone.0121968] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 02/05/2015] [Indexed: 01/22/2023] Open
Abstract
Previous studies have demonstrated that the cell surface receptor Slamf1 (CD150) is requisite for optimal NADPH-oxidase (Nox2) dependent reactive oxygen species (ROS) production by phagocytes in response to Gram- bacteria. By contrast, Slamf8 (CD353) is a negative regulator of ROS in response to Gram+ and Gram- bacteria. Employing in vivo migration after skin sensitization, induction of peritonitis, and repopulation of the small intestine demonstrates that in vivo migration of Slamf1-/- dendritic cells and macrophages is reduced, as compared to wt mice. By contrast, in vivo migration of Slamf8-/- dendritic cells, macrophages and neutrophils is accelerated. These opposing effects of Slamf1 and Slamf8 are cell-intrinsic as judged by in vitro migration in transwell chambers in response to CCL19, CCL21 or CSF-1. Importantly, inhibiting ROS production of Slamf8-/- macrophages by diphenyleneiodonium chloride blocks this in vitro migration. We conclude that Slamf1 and Slamf8 govern ROS–dependent innate immune responses of myeloid cells, thus modulating migration of these cells during inflammation in an opposing manner.
Collapse
Affiliation(s)
- Guoxing Wang
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Boaz J. van Driel
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Gongxian Liao
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Michael S. O’Keeffe
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Peter J. Halibozek
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Jacky Flipse
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Burcu Yigit
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Veronica Azcutia
- Department of Pathology, Center for Excellence in Vascular Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Francis W. Luscinskas
- Department of Pathology, Center for Excellence in Vascular Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Ninghai Wang
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Cox Terhorst
- Department of Medicine, Division of Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
- * E-mail:
| |
Collapse
|
26
|
Romanets-Korbut O, Najakshin AM, Yurchenko M, Malysheva TA, Kovalevska L, Shlapatska LM, Zozulya YA, Taranin AV, Horvat B, Sidorenko SP. Expression of CD150 in tumors of the central nervous system: identification of a novel isoform. PLoS One 2015; 10:e0118302. [PMID: 25710480 PMCID: PMC4339833 DOI: 10.1371/journal.pone.0118302] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 01/13/2015] [Indexed: 11/19/2022] Open
Abstract
CD150 (IPO3/SLAM) belongs to the SLAM family of receptors and serves as a major entry receptor for measles virus. CD150 is expressed on normal and malignant cells of the immune system. However, little is known about its expression outside the hematopoietic system, especially tumors of the central nervous system (CNS). Although CD150 was not found in different regions of normal brain tissues, our immunohistochemical study revealed its expression in 77.6% of human CNS tumors, including glioblastoma, anaplastic astrocytoma, diffuse astrocytoma, ependymoma, and others. CD150 was detected in the cytoplasm, but not on the cell surface of glioma cell lines, and it was colocalized with the endoplasmic reticulum and Golgi complex markers. In addition to the full length mRNA of the mCD150 splice isoform, in glioma cells we found a highly expressed novel CD150 transcript (nCD150), containing an 83 bp insert. The insert is derived from a previously unrecognized exon designated Cyt-new, which is located 510 bp downstream of the transmembrane region exon, and is a specific feature of primate SLAMF1. Both mCD150 and nCD150 cDNA variants did not contain any mutations and had the leader sequence. The nCD150 transcript was also detected in normal and malignant B lymphocytes, primary T cells, dendritic cells and macrophages; however, in glioma cells nCD150 was found to be the predominant CD150 isoform. Similarly to mCD150, cell surface expression of nCD150 allows wild type measles virus entry to the cell. Our data indicate that CD150 expression in CNS tumors can be considered a new diagnostic marker and potential target for novel therapeutic approaches.
Collapse
Affiliation(s)
- Olga Romanets-Korbut
- Laboratory of signal transduction pathways, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology of NAS of Ukraine, Kyiv, Ukraine
- CIRI, International Center for Infectiology Research, IbIV team, Université de Lyon, Lyon, France
- Inserm, U1111, Lyon, France
- CNRS, UMR5308, Lyon, France
- Université Lyon 1, Lyon, France
- Ecole Normale Supérieure de Lyon, Lyon, France
| | - Alexander M. Najakshin
- Laboratory of immunogenetics, Institute of Molecular and Cellular Biology of SB RAS, Novosibirsk, Russia
| | - Mariya Yurchenko
- Laboratory of signal transduction pathways, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology of NAS of Ukraine, Kyiv, Ukraine
| | | | - Larysa Kovalevska
- Laboratory of signal transduction pathways, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology of NAS of Ukraine, Kyiv, Ukraine
| | - Larysa M. Shlapatska
- Laboratory of signal transduction pathways, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology of NAS of Ukraine, Kyiv, Ukraine
| | - Yuriy A. Zozulya
- Neuropathomorphology Department, A.P. Romodanov Institute of Neurosurgery NAMS of Ukraine, Kyiv, Ukraine
| | - Alexander V. Taranin
- Laboratory of immunogenetics, Institute of Molecular and Cellular Biology of SB RAS, Novosibirsk, Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Branka Horvat
- CIRI, International Center for Infectiology Research, IbIV team, Université de Lyon, Lyon, France
- Inserm, U1111, Lyon, France
- CNRS, UMR5308, Lyon, France
- Université Lyon 1, Lyon, France
- Ecole Normale Supérieure de Lyon, Lyon, France
| | - Svetlana P. Sidorenko
- Laboratory of signal transduction pathways, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology of NAS of Ukraine, Kyiv, Ukraine
- * E-mail:
| |
Collapse
|
27
|
Zarama A, Pérez-Carmona N, Farré D, Tomic A, Borst EM, Messerle M, Jonjic S, Engel P, Angulo A. Cytomegalovirus m154 hinders CD48 cell-surface expression and promotes viral escape from host natural killer cell control. PLoS Pathog 2014; 10:e1004000. [PMID: 24626474 PMCID: PMC3953435 DOI: 10.1371/journal.ppat.1004000] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 01/31/2014] [Indexed: 11/19/2022] Open
Abstract
Receptors of the signalling lymphocyte-activation molecules (SLAM) family are involved in the functional regulation of a variety of immune cells upon engagement through homotypic or heterotypic interactions amongst them. Here we show that murine cytomegalovirus (MCMV) dampens the surface expression of several SLAM receptors during the course of the infection of macrophages. By screening a panel of MCMV deletion mutants, we identified m154 as an immunoevasin that effectively reduces the cell-surface expression of the SLAM family member CD48, a high-affinity ligand for natural killer (NK) and cytotoxic T cell receptor CD244. m154 is a mucin-like protein, expressed with early kinetics, which can be found at the cell surface of the infected cell. During infection, m154 leads to proteolytic degradation of CD48. This viral protein interferes with the NK cell cytotoxicity triggered by MCMV-infected macrophages. In addition, we demonstrate that an MCMV mutant virus lacking m154 expression results in an attenuated phenotype in vivo, which can be substantially restored after NK cell depletion in mice. This is the first description of a viral gene capable of downregulating CD48. Our novel findings define m154 as an important player in MCMV innate immune regulation.
Collapse
Affiliation(s)
- Angela Zarama
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | | | - Domènec Farré
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Adriana Tomic
- Department of Histology and Embryology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Eva Maria Borst
- Department of Virology, Hannover Medical School, Hannover, Germany
| | - Martin Messerle
- Department of Virology, Hannover Medical School, Hannover, Germany
| | - Stipan Jonjic
- Department of Histology and Embryology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Pablo Engel
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Immunology Unit, Department of Cell Biology, Immunology, and Neurosciences, Medical School, University of Barcelona, Barcelona, Spain
| | - Ana Angulo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Immunology Unit, Department of Cell Biology, Immunology, and Neurosciences, Medical School, University of Barcelona, Barcelona, Spain
- * E-mail:
| |
Collapse
|
28
|
Abstract
Reactive oxygen species (ROS) are deadly weapons used by phagocytes and other cell types, such as lung epithelial cells, against pathogens. ROS can kill pathogens directly by causing oxidative damage to biocompounds or indirectly by stimulating pathogen elimination by various nonoxidative mechanisms, including pattern recognition receptors signaling, autophagy, neutrophil extracellular trap formation, and T-lymphocyte responses. Thus, one should expect that the inhibition of ROS production promote infection. Increasing evidences support that in certain particular infections, antioxidants decrease and prooxidants increase pathogen burden. In this study, we review the classic infections that are controlled by ROS and the cases in which ROS appear as promoters of infection, challenging the paradigm. We discuss the possible mechanisms by which ROS could promote particular infections. These mechanisms are still not completely clear but include the metabolic effects of ROS on pathogen physiology, ROS-induced damage to the immune system, and ROS-induced activation of immune defense mechanisms that are subsequently hijacked by particular pathogens to act against more effective microbicidal mechanisms of the immune system. The effective use of antioxidants as therapeutic agents against certain infections is a realistic possibility that is beginning to be applied against viruses.
Collapse
Affiliation(s)
- Claudia N Paiva
- Departamento de Imunologia, Instituto de Microbiologia , CCS Bloco D, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | | |
Collapse
|
29
|
Microglial beclin 1 regulates retromer trafficking and phagocytosis and is impaired in Alzheimer's disease. Neuron 2013; 79:873-86. [PMID: 24012002 DOI: 10.1016/j.neuron.2013.06.046] [Citation(s) in RCA: 285] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2013] [Indexed: 01/13/2023]
Abstract
Phagocytosis controls CNS homeostasis by facilitating the removal of unwanted cellular debris. Accordingly, impairments in different receptors or proteins involved in phagocytosis result in enhanced inflammation and neurodegeneration. While various studies have identified extrinsic factors that modulate phagocytosis in health and disease, key intracellular regulators are less understood. Here we show that the autophagy protein beclin 1 is required for efficient phagocytosis in vitro and in mouse brains. Furthermore, we show that beclin 1-mediated impairments in phagocytosis are associated with dysfunctional recruitment of retromer to phagosomal membranes, reduced retromer levels, and impaired recycling of phagocytic receptors CD36 and Trem2. Interestingly, microglia isolated from human Alzheimer's disease (AD) brains show significantly reduced beclin 1 and retromer protein levels. These findings position beclin 1 as a link between autophagy, retromer trafficking, and receptor-mediated phagocytosis and provide insight into mechanisms by which phagocytosis is regulated and how it may become impaired in AD.
Collapse
|
30
|
Mao S, Huang S. The signaling pathway of NADPH oxidase and its role in glomerular diseases. J Recept Signal Transduct Res 2013; 34:6-11. [PMID: 24156279 DOI: 10.3109/10799893.2013.848892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (Nox), a major source of reactive oxygen species, is a critical mediator of redox signaling. It is well-documented that oxidative stress is associated with the development of glomerular diseases (GN). Hence, the Nox was also thought to be involved in the pathogenesis of GN. However, the expression of Nox in various GN was not consistent, the mechanisms by which the activity of the Nox enzymes in regulating renal cells remains unclear. Signaling pathways might be very important in the pathogenesis of GN. We performed this review to provide a relatively complete signaling pathways flowchart for Nox to the investigators who were interested in the role of Nox in the pathogenesis of GN. Here, we reviewed the signal transduction pathway of Nox and its role in the pathogenesis of GN.
Collapse
Affiliation(s)
- Song Mao
- Department of Nephrology, Nanjing Children's Hospital, Nanjing Medical University , Nanjing , People's Republic of China
| | | |
Collapse
|
31
|
Salminen A, Kaarniranta K, Kauppinen A, Ojala J, Haapasalo A, Soininen H, Hiltunen M. Impaired autophagy and APP processing in Alzheimer's disease: The potential role of Beclin 1 interactome. Prog Neurobiol 2013; 106-107:33-54. [DOI: 10.1016/j.pneurobio.2013.06.002] [Citation(s) in RCA: 198] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 06/12/2013] [Accepted: 06/18/2013] [Indexed: 12/18/2022]
|
32
|
Abstract
Phosphoinositide 3-kinases (PI3Ks) control many important aspects of immune cell development, differentiation, and function. Mammals have eight PI3K catalytic subunits that are divided into three classes based on similarities in structure and function. Specific roles for the class I PI3Ks have been broadly investigated and are relatively well understood, as is the function of their corresponding phosphatases. More recently, specific roles for the class II and class III PI3Ks have emerged. Through vertebrate evolution and in parallel with the evolution of adaptive immunity, there has been a dramatic increase not only in the genes for PI3K subunits but also in genes for phosphatases that act on 3-phosphoinositides and in 3-phosphoinositide-binding proteins. Our understanding of the PI3Ks in immunity is guided by fundamental discoveries made in simpler model organisms as well as by appreciating new adaptations of this signaling module in mammals in general and in immune cells in particular.
Collapse
Affiliation(s)
- Klaus Okkenhaug
- Laboratory of Lymphocyte Signaling and Development, The Babraham Institute, Cambridge, CB22 3AT, United Kingdom.
| |
Collapse
|
33
|
Florey O, Overholtzer M. Autophagy proteins in macroendocytic engulfment. Trends Cell Biol 2012; 22:374-80. [PMID: 22608991 DOI: 10.1016/j.tcb.2012.04.005] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 04/11/2012] [Accepted: 04/12/2012] [Indexed: 10/28/2022]
Abstract
Eukaryotic cells must constantly degrade both intracellular and extracellular material to maintain cellular and organismal homeostasis. Two engulfment pathways, autophagy and phagocytosis, contribute to the turnover of intracellular and extracellular substrates by delivering material to the lysosome. Historically these are thought to be separate pathways, but recent studies have revealed the direct participation of autophagy proteins in phagocytosis. Autophagy proteins lipidate LC3 onto phagosomes and other macroendocytic vacuole membranes, and are required for lysosomal degradation of engulfed cargo, demonstrating an autophagosome-independent role for autophagy proteins in mediating the turnover of extracellular substrates. This review discusses the biological systems in which autophagy proteins have been found to regulate lysosome fusion to non-autophagic membranes.
Collapse
Affiliation(s)
- Oliver Florey
- Cell Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA
| | | |
Collapse
|