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Huang C, Zheng D, Fu C, Cai Z, Zhang H, Xie Z, Luo L, Li H, Huang Y, Chen J. Secreted S100A4 causes asthmatic airway epithelial barrier dysfunction induced by house dust mite extracts via activating VEGFA/VEGFR2 pathway. ENVIRONMENTAL TOXICOLOGY 2023; 38:1431-1444. [PMID: 36883729 DOI: 10.1002/tox.23776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 02/21/2023] [Accepted: 02/25/2023] [Indexed: 05/18/2023]
Abstract
The airway epithelial barrier dysfunction plays a crucial role in pathogenesis of asthma and causes the amplification of downstream inflammatory signal pathway. S100 calcium binding protein A4 (S100A4), which promotes metastasis, have recently been discovered as an effective inflammatory factor and elevated in bronchoalveolar lavage fluid in asthmatic mice. Vascular endothelial growth factor-A (VEGFA), is considered as vital regulator in vascular physiological activities. Here, we explored the probably function of S100A4 and VEGFA in asthma model dealt with house dust mite (HDM) extracts. Our results showed that secreted S100A4 caused epithelial barrier dysfunction, airway inflammation and the release of T-helper 2 cytokines through the activation of VEGFA/VEGFR2 signaling pathway, which could be partial reversed by S100A4 polyclonal antibody, niclosamide and S100A4 knockdown, representing a potential therapeutic target for airway epithelial barrier dysfunction in asthma.
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Affiliation(s)
- Chaowen Huang
- Department of Pulmonary and Critical Care Medicine, Jiangmen Institute of Respiratory Disease, Jiangmen Central Hospital, Jiangmen, China
| | - Dongyan Zheng
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Chunlai Fu
- Department of Emergency Intensive Care Unit, Affiliated Dongguan People's Hospital, Southern Medical University, Dongguan, China
| | - Ziwei Cai
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - He Zhang
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Zhefan Xie
- Department of Emergency Intensive Care Unit, Affiliated Dongguan People's Hospital, Southern Medical University, Dongguan, China
| | - Lishan Luo
- Department of Respiratory and Critical Care Medicine, Huizhou Municipal Central Hospital, Huizhou, China
| | - Huifang Li
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yanming Huang
- Department of Pulmonary and Critical Care Medicine, Jiangmen Institute of Respiratory Disease, Jiangmen Central Hospital, Jiangmen, China
| | - Jialong Chen
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
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Wu Y, Zhao L, Qin Y. Comprehensive RNA-seq profiling to evaluate the rabbit mammary gland transcriptome after mastitis. J Anim Sci 2023; 101:skad110. [PMID: 37085268 PMCID: PMC10205460 DOI: 10.1093/jas/skad110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 04/07/2023] [Indexed: 04/23/2023] Open
Abstract
Mastitis is a relatively common disease in rabbit does. The aim of this study was to investigate a relationship between the severity of clinical signs and pathological observations and to analyze differentially expressed genes (DEGs) in the mammary gland with mastitis versus healthy mammary gland. The result showed that rectal temperatures of the rabbits with both mild mastitis and severe mastitis were higher than that of control. Cell counting results showed that the somatic cell count (SCC) only in milk of the rabbit with severe mastitis was significantly higher than that in the control group. However, the number of heterophils in the histological sections of mammary glands with mild mastitis was significantly higher than that of control. A total of 1,096 DEGs between the control and mastitis mammary glands was identified by RNA-sequencing (RNA-seq). Gene ontology (GO) showed that most of up-regulated genes were enriched in terms such as response to stimulus, signal transduction, and cell communication. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis revealed that these genes were mostly enriched in the pathways such as Rap1 signaling pathway, proteoglycans in cancer, and PI3K-Akt signaling pathway. However, the downregulated genes were mainly enriched in metabolic processes and significantly involved in metabolic pathways. The data provides useful information to further dissect the molecular genetic mechanisms underlying rabbit mastitis, which is a prerequisite for designing effective intervention strategies.
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Affiliation(s)
- Yingjie Wu
- Department of Intelligent Breeding and Environmental Science, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
- National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Lihua Zhao
- Department of Intelligent Breeding and Environmental Science, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
- National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
| | - Yinghe Qin
- Department of Intelligent Breeding and Environmental Science, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
- National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. China
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Exosomes as Crucial Players in Pathogenesis of Systemic Lupus Erythematosus. J Immunol Res 2022; 2022:8286498. [PMID: 35910853 PMCID: PMC9328965 DOI: 10.1155/2022/8286498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/29/2022] [Indexed: 11/18/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease that affects multiple systems. Its clinical manifestation varies across patients, from skin mucosa to multiorgan damage to severe central nervous system involvement. The exosome has been shown to play an important role in the pathogenesis of autoimmune diseases, including SLE. We review the recent knowledge of exosomes, including their biology, functions, mechanism, and standardized extraction and purification methods in SLE, to highlight potential therapeutic targets for SLE.
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Pleuger C, Silva EJR, Pilatz A, Bhushan S, Meinhardt A. Differential Immune Response to Infection and Acute Inflammation Along the Epididymis. Front Immunol 2020; 11:599594. [PMID: 33329594 PMCID: PMC7729520 DOI: 10.3389/fimmu.2020.599594] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/03/2020] [Indexed: 12/19/2022] Open
Abstract
The epididymis is a tubular structure connecting the vas deferens to the testis. This organ consists of three main regions—caput, corpus, and cauda—that face opposing immunological tasks. A means of combating invading pathogens is required in the distally located cauda, where there is a risk of ascending bacterial infections originating from the urethra. Meanwhile, immune tolerance is necessary at the caput, where spermatozoa with immunogenic neo-antigens originate from the testis. Consistently, when challenged with live bacteria or inflammatory stimuli, the cauda elicits a much stronger immune response and inflammatory-inflicted damage than the caput. At the cellular level, a role for diverse and strategically positioned mononuclear phagocytes is emerging. At the mechanistic level, differential expression of immunoprotective and immunomodulatory mediators has been detected between the three main regions of the epididymis. In this review, we summarize the current state of knowledge about region-specific immunological characteristics and unveil possible underlying mechanisms on cellular and molecular levels. Improved understanding of the different immunological microenvironments is the basis for an improved therapy and counseling of patients with epididymal infections.
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Affiliation(s)
- Christiane Pleuger
- Institute of Anatomy and Cell Biology, Justus-Liebig-University Giessen, Giessen, Germany.,Hessian Centre of Reproductive Medicine, Justus-Liebig-University Giessen, Giessen, Germany
| | - Erick José Ramo Silva
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, Brazil
| | - Adrian Pilatz
- Hessian Centre of Reproductive Medicine, Justus-Liebig-University Giessen, Giessen, Germany.,Department of Urology, Pediatric Urology and Andrology, University Hospital, Justus-Liebig-University Giessen, Giessen, Germany
| | - Sudhanshu Bhushan
- Institute of Anatomy and Cell Biology, Justus-Liebig-University Giessen, Giessen, Germany.,Hessian Centre of Reproductive Medicine, Justus-Liebig-University Giessen, Giessen, Germany
| | - Andreas Meinhardt
- Institute of Anatomy and Cell Biology, Justus-Liebig-University Giessen, Giessen, Germany.,Hessian Centre of Reproductive Medicine, Justus-Liebig-University Giessen, Giessen, Germany
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Andrade AD, Almeida PGC, Mariani NAP, Freitas GA, Kushima H, Filadelpho AL, Spadella MA, Avellar MCW, Silva EJR. Lipopolysaccharide-induced epididymitis modifies the transcriptional profile of Wfdc genes in mice†. Biol Reprod 2020; 104:144-158. [PMID: 33034631 DOI: 10.1093/biolre/ioaa189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Whey-acidic protein four-disulfide core domain (WFDC) genes display putative roles in innate immunity and fertility. In mice, a locus on chromosome 2 contains 5 and 11 Wfdc genes in its centromeric and telomeric subloci, respectively. Although Wfdc genes are highly expressed in the epididymis, their contributions to epididymal function remain elusive. Here, we investigated whether Wfdc genes are regulated in response to lipopolysaccharide (LPS)-induced epididymitis, an inflammatory condition that impairs male fertility. We induced epididymitis in mice via (i) interstitial LPS injection into epididymal initial segment and (ii) intravasal LPS injection into the vas deferens towards cauda epididymis. Interstitial and intravasal LPS induced a differential upregulation of inflammatory mediators (interleukin 1 beta, interleukin 6, tumor necrosis factor, interferon gamma, and interleukin 10) in the initial segment and cauda epididymis within 72 h post-treatment. These changes were accompanied by a time-dependent endotoxin clearance from the epididymis. In the initial segment, interstitial LPS upregulated all centromeric (Slpi, Wfdc5, Wfdc12, Wfdc15a, and Wfdc15b) and five telomeric (Wfdc2, Wfdc3, Wfdc6b, Wfdc10, and Wfdc13) Wfdc transcripts at 24 and 72 h. In the cauda epididymis, intravasal LPS upregulated Wfdc5 and Wfdc2 transcripts at 24 h, followed by a downregulation of Wfdc15b and three telomeric (Wfdc6a, Wfdc11, and Wfdc16) gene transcripts at 72 h. Pharmacological inhibition of nuclear factor kappa B activation prevented LPS-induced upregulation of centromeric and telomeric Wfdc genes depending on the epididymal region. We show that LPS-induced inflammation differentially regulated the Wfdc locus in the proximal and distal epididymis, indicating region-specific roles for the Wfdc family in innate immune responses during epididymitis.
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Affiliation(s)
- Alexandre D Andrade
- Department of Biophysics and Pharmacology, Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, SP, Brazil
| | - Priscila G C Almeida
- Department of Biophysics and Pharmacology, Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, SP, Brazil
| | - Noemia A P Mariani
- Department of Biophysics and Pharmacology, Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, SP, Brazil
| | - Geanne A Freitas
- Department of Pharmacology, Universidade Federal de São Paulo, Escola Paulista de Medicina, São Paulo, SP, Brazil
| | - Hélio Kushima
- Department of Biophysics and Pharmacology, Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, SP, Brazil
| | - André L Filadelpho
- Department of Structural and Functional Biology, Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, SP, Brazil
| | | | - Maria Christina W Avellar
- Department of Pharmacology, Universidade Federal de São Paulo, Escola Paulista de Medicina, São Paulo, SP, Brazil
| | - Erick J R Silva
- Department of Biophysics and Pharmacology, Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho", Botucatu, SP, Brazil
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