1
|
Wang J, Zhao SJ, Wang LL, Lin XX, Mor G, Liao AH. Leukocyte immunoglobulin-like receptor subfamily B: A novel immune checkpoint molecule at the maternal-fetal interface. J Reprod Immunol 2023; 155:103764. [PMID: 36434938 DOI: 10.1016/j.jri.2022.103764] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/22/2022] [Accepted: 11/10/2022] [Indexed: 11/15/2022]
Abstract
Due to their crucial roles in embryo implantation, maternal-fetal tolerance induction, and pregnancy progression, immune checkpoint molecules (ICMs), such as programmed cell death-1, cytotoxic T-lymphocyte antigen 4, and T cell immunoglobulin mucin 3, are considered potential targets for clinical intervention in pregnancy complications. Despite the considerable progress on these molecules, our understanding of ICMs at the maternal-fetal interface is still limited. Identification of alternative and novel ICMs and the combination of multiple ICMs is urgently needed for deeply understanding the mechanism of maternal-fetal tolerance and to discover the causes of pregnancy complications. Leukocyte immunoglobulin-like receptor subfamily B (LILRB) is a novel class of ICMs with strong negative regulatory effects on the immune response. Recent studies have revealed that LILRB is enriched in decidual immune cells and stromal cells at the maternal-fetal interface, which can modulate the biological behavior of immune cells and promote immune tolerance. In this review, we introduce the structural features, expression profiles, ligands, and orthologs of LILRB. In addition, the potential mechanisms and functions mediated by LILRB for sustaining the maternal-fetal tolerance microenvironment, remodeling the uterine spiral artery, and induction of pregnancy immune memory are summarized. We have also provided new suggestions for further understanding the roles of LILRB and potential therapeutic strategies for pregnancy-related diseases.
Collapse
Affiliation(s)
- Jing Wang
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Si-Jia Zhao
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Li-Ling Wang
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Xin-Xiu Lin
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Gil Mor
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China; C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ai-Hua Liao
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China.
| |
Collapse
|
2
|
Zhou H, Li N, Yuan Y, Jin YG, Wu Q, Yan L, Bian ZY, Deng W, Shen DF, Li H, Tang QZ. Leukocyte immunoglobulin-like receptor B4 protects against cardiac hypertrophy via SHP-2-dependent inhibition of the NF-κB pathway. J Mol Med (Berl) 2020; 98:691-705. [PMID: 32280997 DOI: 10.1007/s00109-020-01896-w] [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: 10/28/2019] [Revised: 03/08/2020] [Accepted: 03/11/2020] [Indexed: 10/24/2022]
Abstract
Cardiac hypertrophy is a complex pathological process, and the molecular mechanisms underlying hypertrophic remodeling have not been clearly elucidated. Leukocyte immunoglobulin-like receptor B4 (lilrb4) is an inhibitory transmembrane protein that is necessary for the regulation of various cellular signaling pathways. To investigate whether lilrb4 plays a role in cardiac hypertrophy, we performed aortic banding in lilrb4 knockout mice, lilrb4 cardiac-specific transgenic mice, and their wild-type littermates. Cardiac hypertrophy was evaluated by echocardiographic, hemodynamic, pathological, and molecular analyses. We found that lilrb4 was expressed both in myocardial tissue and on cultured cardiomyocytes under basal conditions, but the expression was obviously decreased in mouse hearts following aortic banding and in cardiomyocytes treated with angiotensin II. Lilrb4 disruption aggravated cardiac hypertrophy, fibrosis, and dysfunction in response to pressure overload. Conversely, the cardiac overexpression of lilrb4 led to the opposite effects. Moreover, lilrb4 overexpression inhibited angiotensin II-induced cardiomyocyte hypertrophy in vitro. Mechanistically, we determined that the cardioprotective effect of lilrb4 was mediated through an interaction with SHP-2, the preservation of phosphorylated SHP-2, and the inhibition of the NF-κB pathway. In addition, SHP-2 knockdown in cardiomyocytes eliminated the inhibitory effects of lilrb4 on angiotensin II-induced hypertrophy and NF-κB activation. Our results suggest that lilrb4 protects against pathological cardiac hypertrophy via the SHP-2-dependent inhibition of the NF-κB pathway and may act as a potential therapeutic target for cardiac hypertrophy. KEY MESSAGES: Lilrb4 expression is decreased by hypertrophic stimuli. Lilrb4 protects against pathological cardiac hypertrophy. Lilrb4 interacts with SHP-2 and inhibits NF-κB pathway.
Collapse
Affiliation(s)
- Heng Zhou
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
| | - Ning Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
| | - Yuan Yuan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
| | - Ya-Ge Jin
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
| | - Qingqing Wu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
| | - Ling Yan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
| | - Zhou-Yan Bian
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
| | - Wei Deng
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
| | - Di-Fei Shen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
| | - Hongliang Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China.,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, People's Republic of China. .,Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, 430060, People's Republic of China. .,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, People's Republic of China.
| |
Collapse
|
3
|
Kasai S, Inui M, Nakamura K, Kakizaki Y, Endo S, Nakamura A, Ito S, Takai T. A novel regulatory role of gp49B on dendritic cells in T-cell priming. Eur J Immunol 2008; 38:2426-37. [PMID: 18792399 DOI: 10.1002/eji.200737550] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Dendritic cells (DC) play pivotal roles in the induction and regulation of both innate and acquired immunity. DC express several cell-surface immune inhibitory receptors. However, little is known about their potential immunoregulatory functions in the context of T-cell activation. Here we report that murine gp49B, a member of the immunoglobulin superfamily, harboring immunoreceptor tyrosine-based inhibitory motifs, is expressed on DC and downregulates cellular activity to prevent the excessive activation of T cells in vitro and in vivo. Bone marrow-derived DC (BMDC) from newly generated gp49B-deficient (gp49B(-/-)) mice induced enhanced proliferation and IL-2 release of antigen-specific CD4(+) and CD8(+) T cells compared with BMDC from wild-type mice, in a cell-cell contact manner. The enhanced proliferation by gp49B(-/-) BMDC was also observed in allogeneic CD4(+) and CD8(+) T cells. Moreover, the transfer of allogeneic BALB/c splenocytes into C57BL/6 gp49B(-/-) mice induced severe acute graft-versus-host disease with an augmented upregulation of CD86 on CD11c(+) splenic gp49B(-/-) DC, while transfer of C57BL/6 gp49B(-/-) splenocytes into BALB/c mice did not, suggesting the exacerbation of the disease was due, at least in part, to augmented activation of recipient gp49B(-/-) DC. These findings demonstrate a novel regulatory role of gp49B in the function of DC.
Collapse
Affiliation(s)
- Satoshi Kasai
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | | | | | | | | | | | | | | |
Collapse
|
5
|
Martínez-Augustin O, Merlos M, Zarzuelo A, Suárez MD, de Medina FS. Disturbances in metabolic, transport and structural genes in experimental colonic inflammation in the rat: a longitudinal genomic analysis. BMC Genomics 2008; 9:490. [PMID: 18928539 PMCID: PMC2577662 DOI: 10.1186/1471-2164-9-490] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2008] [Accepted: 10/17/2008] [Indexed: 12/26/2022] Open
Abstract
Background Trinitrobenzenesulphonic acid (TNBS) induced rat colitis is one of the most widely used models of inflammatory bowel disease (IBD), a condition whose aetiology and pathophysiology are incompletely understood. We have characterized this model at the genomic level using a longitudinal approach. Six control rats were compared with colitic animals at 2, 5, 7 and 14 days after TNBS administration (n = 3). The Affymetrix Rat Expression Array 230 2.0 system was used. Results TNBS-induced colitis had a profound impact on the gene expression profile, which was maximal 5 and 7 days post-induction. Most genes were affected at more than one time point. They were related to a number of biological functions, not only inflammation/immunity but also transport, metabolism, signal transduction, tissue remodeling and angiogenesis. Gene changes generally correlated with the severity of colitis. The results were successfully validated in a subset of genes by real-time PCR. Conclusion The TNBS model of rat colitis has been described in detail at the transcriptome level. The changes observed correlate with pathophysiological disturbances such as tissue remodelling and alterations in ion transport, which are characteristic of both this model and IBD.
Collapse
Affiliation(s)
- Olga Martínez-Augustin
- Department of Biochemistry and Molecular Biology II, CIBEREHD, School of Pharmacy, University of Granada, Granada, Spain.
| | | | | | | | | |
Collapse
|
7
|
Hoelsbrekken SE, Fossum S, Dissen E. Molecular cloning of LILRC1 and LILRC2 in the mouse and the rat, two novel immunoglobulin-like receptors encoded by the leukocyte receptor gene complex. Immunogenetics 2005; 57:479-86. [PMID: 16041585 DOI: 10.1007/s00251-005-0014-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2005] [Accepted: 06/13/2005] [Indexed: 10/25/2022]
Abstract
We report the molecular cloning of two novel single-member receptor families with homology to LILR/CD85, PIR, and gp49: LILRC1 in the rat and the mouse, and LILRC2 in the rat. LILRC1 and LILRC2 both have two extracellular Ig-like domains and a cytoplasmic tail devoid of any known signaling motifs. The transmembrane regions of LILRC1 and LILRC2 contain an arginine residue, a common feature in receptors that associate with activating adaptor proteins. Rat and mouse LILRC1 are orthologs sharing 81.5% amino acid identity. LILRC2 represents a distinct receptor family, 47.9% identical to LILRC1. No murine LILRC2 ortholog was detected in genome or expressed sequence tag sequence databases. By radiation hybrid mapping, the rat Lilrc1 and Lilrc2 loci were localized to the leukocyte receptor gene complex (LRC) on chromosome 1, and the mouse Lilrc1 locus was mapped to the LRC on chromosome 7. Moreover, the mouse and rat Lilrc1 loci were localized to similar positions within the LRC. As shown by RT-PCR, rat LILRC1 was expressed by B cells, neutrophils, and a macrophage cell line. Transcription of LILRC2 was detected in T cells, B cells, neutrophils, and macrophages.
Collapse
|