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Laubreton D, Djebali S, Angleraux C, Chain B, Dubois M, Henry F, Leverrier Y, Teixeira M, Markossian S, Marvel J. Generation of a C57BL/6J mouse strain expressing the CD45.1 epitope to improve hematopoietic stem cell engraftment and adoptive cell transfer experiments. Lab Anim (NY) 2023; 52:324-331. [PMID: 38017180 DOI: 10.1038/s41684-023-01275-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/05/2023] [Indexed: 11/30/2023]
Abstract
Adoptive cell transfer between genetically identical hosts relies on the use of a congenic marker to distinguish the donor cells from the host cells. CD45, a glycoprotein expressed by all hematopoietic cells, is one of the main congenic markers used because its two isoforms, CD45.1 and CD45.2, can be discriminated by flow cytometry. As a consequence, C57BL/6J (B6; CD45.2) and B6.SJL-Ptprca Pepcb/BoyJ (B6.SJL; CD45.1) mice are widely used in adoptive cell transfer experiments, under the presumption that they differ only at the CD45 (Ptprc) locus. However, recent studies have identified genetic variations between these congenic strains and have notably highlighted a differential expression of cathepsin E (CTSE). The B6.SJL mouse presents a number of functional differences in hematopoietic stem cell engraftment potential and immune cell numbers compared with the B6 mouse. In this study, we showed that B6 and B6.SJL mice also differ in their CD8+ T cell compartment and CD8+ T cell responses to viral infection. We identified Ctse as the most differentially expressed gene between CD8+ T cells of B6 and B6.SJL and demonstrated that the differences reported between these two mouse strains are not due to CTSE. Finally, using CRISPR-Cas9 genome editing, we generated a CD45.1-expressing B6 mouse by inserting one nucleotide mutation (A904G) leading to an amino acid change (K302E) in the Ptprc gene of the B6 mouse. We showed that this new B6-Ptprcem(K302E)Jmar/J mouse resolves the experimental biases reported between the B6 and B6.SJL mouse lines and should thus represent the new gold standard for adoptive cell transfer experiments in B6.
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Affiliation(s)
- Daphné Laubreton
- CIRI, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR 5308, École Normale Supérieure de Lyon, Université de Lyon, Lyon, France
| | - Sophia Djebali
- CIRI, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR 5308, École Normale Supérieure de Lyon, Université de Lyon, Lyon, France
| | - Céline Angleraux
- SFR BioSciences, Plateau de Biologie Expérimentale de la Souris (AniRA-PBES), Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, CNRS UAR3444, INSERM US8, Lyon, France
| | - Benny Chain
- Division of Infection and Immunity, University College London, London, UK
| | - Maxence Dubois
- CIRI, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR 5308, École Normale Supérieure de Lyon, Université de Lyon, Lyon, France
| | - Farida Henry
- SFR BioSciences, Plateau de Biologie Expérimentale de la Souris (AniRA-PBES), Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, CNRS UAR3444, INSERM US8, Lyon, France
| | - Yann Leverrier
- CIRI, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR 5308, École Normale Supérieure de Lyon, Université de Lyon, Lyon, France
| | - Marie Teixeira
- SFR BioSciences, Plateau de Biologie Expérimentale de la Souris (AniRA-PBES), Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, CNRS UAR3444, INSERM US8, Lyon, France
| | - Suzy Markossian
- Institut de Génomique Fonctionnelle de Lyon, INRAE USC 1370, CNRS UMR 5242, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Jacqueline Marvel
- CIRI, INSERM U1111, Université Claude Bernard Lyon 1, CNRS UMR 5308, École Normale Supérieure de Lyon, Université de Lyon, Lyon, France.
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Zhang D, Zhang J, Zhang J, Ji X, Qi Q, Xu J, Pan Y, Liu X, Sun F, Zeng R, Dong L. Identification of a novel role for TL1A/DR3 deficiency in acute respiratory distress syndrome that exacerbates alveolar epithelial disruption. Respir Res 2023; 24:182. [PMID: 37434162 DOI: 10.1186/s12931-023-02488-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 07/01/2023] [Indexed: 07/13/2023] Open
Abstract
Alveolar epithelial barrier is a potential therapeutic target for acute respiratory distress syndrome (ARDS). However, an effective intervention against alveolar epithelial barrier has not been developed. Here, based on single-cell RNA and mRNA sequencing results, death receptor 3 (DR3) and its only known ligand tumor necrosis factor ligand-associated molecule 1A (TL1A) were significantly reduced in epithelium from an ARDS mice and cell models. The apparent reduction in the TL1A/DR3 axis in lungs from septic-ARDS patients was correlated with the severity of the disease. The examination of knockout (KO) and alveolar epithelium conditional KO (CKO) mice showed that TL1A deficiency exacerbated alveolar inflammation and permeability in lipopolysaccharide (LPS)-induced ARDS. Mechanistically, TL1A deficiency decreased glycocalyx syndecan-1 and tight junction-associated zonula occludens 3 by increasing cathepsin E level for strengthening cell-to-cell permeability. Additionally, DR3 deletion aggravated barrier dysfunction and pulmonary edema in LPS-induced ARDS through the above mechanisms based on the analyses of DR3 CKO mice and DR3 overexpression cells. Therefore, the TL1A/DR3 axis has a potential value as a key therapeutic signaling for the protection of alveolar epithelial barrier.
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Affiliation(s)
- Dong Zhang
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, 250021, Shandong, China
| | - Jianning Zhang
- Department of Respiratory and Intensive Care Unit, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Jintao Zhang
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, 250021, Shandong, China
| | - Xiang Ji
- Department of Respiratory and Intensive Care Unit, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Qian Qi
- Department of Respiratory and Intensive Care Unit, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Jiawei Xu
- Department of Respiratory and Intensive Care Unit, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Yun Pan
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, 250021, Shandong, China
| | - Xiaofei Liu
- Department of Respiratory and Intensive Care Unit, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Fang Sun
- Department of Respiratory and Intensive Care Unit, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Rong Zeng
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, 250021, Shandong, China
| | - Liang Dong
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, 250021, Shandong, China.
- Department of Respiratory and Intensive Care Unit, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory Diseases, Jinan, China.
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Shah SD, Nayak AP, Sharma P, Villalba DR, Addya S, Huang W, Shapiro P, Kane MA, Deshpande DA. Targeted Inhibition of Select Extracellular Signal-regulated Kinases 1 and 2 Functions Mitigates Pathological Features of Asthma in Mice. Am J Respir Cell Mol Biol 2023; 68:23-38. [PMID: 36067041 PMCID: PMC9817918 DOI: 10.1165/rcmb.2022-0110oc] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/26/2022] [Indexed: 02/05/2023] Open
Abstract
ERK1/2 (extracellular signal-regulated kinases 1 and 2) regulate the activity of various transcription factors that contribute to asthma pathogenesis. Although an attractive drug target, broadly inhibiting ERK1/2 is challenging because of unwanted cellular toxicities. We have identified small molecule inhibitors with a benzenesulfonate scaffold that selectively inhibit ERK1/2-mediated activation of AP-1 (activator protein-1). Herein, we describe the findings of targeting ERK1/2-mediated substrate-specific signaling with the small molecule inhibitor SF-3-030 in a murine model of house dust mite (HDM)-induced asthma. In 8- to 10-week-old BALB/c mice, allergic asthma was established by repeated intranasal HDM (25 μg/mouse) instillation for 3 weeks (5 days/week). A subgroup of mice was prophylactically dosed with 10 mg/kg SF-3-030/DMSO intranasally 30 minutes before the HDM challenge. Following the dosing schedule, mice were evaluated for alterations in airway mechanics, inflammation, and markers of airway remodeling. SF-3-030 treatment significantly attenuated HDM-induced elevation of distinct inflammatory cell types and cytokine concentrations in BAL and IgE concentrations in the lungs. Histopathological analysis of lung tissue sections revealed diminished HDM-induced pleocellular peribronchial inflammation, mucus cell metaplasia, collagen accumulation, thickening of airway smooth muscle mass, and expression of markers of cell proliferation (Ki-67 and cyclin D1) in mice treated with SF-3-030. Furthermore, SF-3-030 treatment attenuated HDM-induced airway hyperresponsiveness in mice. Finally, mechanistic studies using transcriptome and proteome analyses suggest inhibition of HDM-induced genes involved in inflammation, cell proliferation, and tissue remodeling by SF-3-030. These preclinical findings demonstrate that function-selective inhibition of ERK1/2 signaling mitigates multiple features of asthma in a murine model.
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Affiliation(s)
- Sushrut D. Shah
- Center for Translational Medicine, Jane and Leonard Korman Lung Center, and
| | - Ajay P. Nayak
- Center for Translational Medicine, Jane and Leonard Korman Lung Center, and
| | - Pawan Sharma
- Center for Translational Medicine, Jane and Leonard Korman Lung Center, and
| | | | - Sankar Addya
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania; and
| | - Weiliang Huang
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Baltimore, Maryland
| | - Paul Shapiro
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Baltimore, Maryland
| | - Maureen A. Kane
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Baltimore, Maryland
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Qin W, Wang T, Liu G, Sun L, Han W, Gao Y. Dynamic Urinary Proteome Changes in Ovalbumin-Induced Asthma Mouse Model Using Data-Independent Acquisition Proteomics. J Asthma Allergy 2021; 14:1355-1366. [PMID: 34785909 PMCID: PMC8590963 DOI: 10.2147/jaa.s330054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 10/30/2021] [Indexed: 01/09/2023] Open
Abstract
Background In this work, we aim to investigate dynamic urinary proteome changes during asthma development and to identify potential urinary protein biomarkers for the diagnosis of asthma. Methods An ovalbumin (OVA)-induced mouse model was used to mimic asthma. The urinary proteome from asthma and control mice was determined using data-independent acquisition combined with high-resolution tandem mass spectrometry. Results Overall, 331 proteins were identified, among which 53 were differentially expressed (26, 24, 14 and 20 on days 2, 8, 15 and 18, respectively; 1.5-fold change, adjust P<0.05). Gene Ontology annotation of the differential proteins showed that the acute-phase response, innate immune response, B cell receptor signaling pathway, and complement activation were significantly enriched. Protein–protein interaction network revealed that these differential proteins were partially biologically connected in OVA-induced asthma, as a group. On days 2 and 8, after two episodes of OVA sensitization, six differential proteins (CRAMP, ECP, HP, F2, AGP1, and CFB) were also reported to be closely associated with asthma. These proteins may hold the potential for the early screening of asthma. On days 15 and 18, after challenged with 1% OVA by inhalation, seven differential proteins (VDBP, HP, CTSE, PIGR, AAT, TRFE, and HPX) were also reported to be closely associated with asthma. Thus, these proteins hold the potential to be biomarkers for the diagnosis of asthma attack. Conclusion Our results indicate that the urinary proteome could reflect dynamic pathophysiological changes in asthma progression.
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Affiliation(s)
- Weiwei Qin
- Department of Anesthesiology, Qingdao Municipal Hospital, Qingdao University, Qingdao, 266071, People's Republic of China.,Department of Biochemistry and Molecular Biology, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Ting Wang
- Department of Biochemistry and Molecular Biology, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Guangwei Liu
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, Institute of Cell Biology, College of Life Sciences, Beijing Normal University, Beijing, 100875, People's Republic of China
| | - Lixin Sun
- Department of Anesthesiology, Qingdao Municipal Hospital, Qingdao University, Qingdao, 266071, People's Republic of China
| | - Wei Han
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao University, Qingdao, 266071, People's Republic of China
| | - Youhe Gao
- Department of Biochemistry and Molecular Biology, Gene Engineering Drug and Biotechnology Beijing Key Laboratory, Beijing Normal University, Beijing, 100875, People's Republic of China
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Mashimo M, Fujii T, Ono S, Moriwaki Y, Misawa H, Kawashima K. Minireview: Divergent roles of α7 nicotinic acetylcholine receptors expressed on antigen-presenting cells and CD4 + T cells in the regulation of T cell differentiation. Int Immunopharmacol 2020; 82:106306. [PMID: 32086096 DOI: 10.1016/j.intimp.2020.106306] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/07/2020] [Accepted: 02/10/2020] [Indexed: 12/12/2022]
Abstract
α7 nAChRs expressed on immune cells regulate antigen-specific antibody and proinflammatory cytokine production. Using spleen cells from ovalbumin (OVA)-specific T cell receptor transgenic DO11.10 mice and the α7 nAChR agonist GTS-21, investigation of (1) antigen processing-dependent and (2) -independent, antigen presenting cell (APC)-dependent, naïve CD4+ T cell differentiation, as well as (3) non-specific APC-independent, anti-CD3/CD28 mAbs-induced CD4+ T cell differentiation, revealed the differential roles of α7 nAChRs expressed on T cells and APCs in the regulation of CD4+ T cell differentiation. GTS-21 suppressed OVA-induced antigen processing- and APC-dependent differentiation into regulatory T cells (Tregs) and effector T cells (Th1, Th2 and Th17) without affecting OVA uptake or cell viability. By contrast, GTS-21 upregulated OVA peptide-induced antigen processing-independent T cell differentiation into all lineages. During anti-CD3/CD28 mAbs-induced T cell differentiation in the presence of polarizing cytokines, GTS-21 promoted wild-type T cell differentiation into all lineages, but did not affect α7 nAChR-deficient T cell differentiation. These results demonstrate (1) that α7 nAChRs on APCs downregulate T cell differentiation by inhibiting antigen processing and thereby interfering with antigen presentation; and (2) that α7 nAChRs on T cells upregulate differentiation into Tregs and effector T cells. Thus, the divergent roles of α7 nAChRs on APCs and T cells likely regulate the intensity of immune responses. These findings suggest the possibility of using α7 nAChR agonists to harvest greater numbers of Tregs and Th1 and Th2 cells for adoptive immune therapies for treatment of autoimmune diseases and cancers.
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Affiliation(s)
- Masato Mashimo
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto 610-0395, Japan
| | - Takeshi Fujii
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyotanabe, Kyoto 610-0395, Japan
| | - Shiro Ono
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka 584-8540, Japan
| | - Yasuhiro Moriwaki
- Department of Pharmacology, Faculty of Pharmacy, Keio University, Tokyo 105-8512, Japan
| | - Hidemi Misawa
- Department of Pharmacology, Faculty of Pharmacy, Keio University, Tokyo 105-8512, Japan
| | - Koichiro Kawashima
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences, Tokyo 108-8641, Japan.
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Mashimo M, Komori M, Matsui YY, Murase MX, Fujii T, Takeshima S, Okuyama H, Ono S, Moriwaki Y, Misawa H, Kawashima K. Distinct Roles of α7 nAChRs in Antigen-Presenting Cells and CD4 + T Cells in the Regulation of T Cell Differentiation. Front Immunol 2019; 10:1102. [PMID: 31214160 PMCID: PMC6554293 DOI: 10.3389/fimmu.2019.01102] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 04/30/2019] [Indexed: 11/21/2022] Open
Abstract
It is now apparent that immune cells express a functional cholinergic system and that α7 nicotinic acetylcholine receptors (α7 nAChRs) are involved in regulating T cell differentiation and the synthesis of antigen-specific antibodies and proinflammatory cytokines. Here, we investigated the specific function α7 nAChRs on T cells and antigen presenting cells (APCs) by testing the effect of GTS-21, a selective α7 nAChR agonist, on differentiation of CD4+ T cells from ovalbumin (OVA)-specific TCR transgenic DO11.10 mice activated with OVA or OVA peptide323−339 (OVAp). GTS-21 suppressed OVA-induced antigen processing-dependent development of CD4+ regulatory T cells (Tregs) and effector T cells (Th1, Th2, and Th17). By contrast, GTS-21 up-regulated OVAp-induced antigen processing-independent development of CD4+ Tregs and effector T cells. GTS-21 also suppressed production of IL-2, IFN-γ, IL-4, IL-17, and IL-6 during OVA-induced activation but, with the exception IL-2, enhanced their production during OVAp-induced activation. In addition, during antigen-nonspecific, APC-independent anti-CD3/CD28 antibody-induced CD4+ polyclonal T cell activation in the presence of respective polarizing cytokines, GTS-21 promoted development of all lineages, which indicates that GTS-21 also acts via α7 nAChRs on T cells. These results suggest 1) that α7 nAChRs on APCs suppress CD4+ T cell activation by interfering with antigen presentation through inhibition of antigen processing; 2) that α7 nAChRs on CD4+ T cells up-regulate development of Tregs and effector T cells; and that α7 nAChR agonists and antagonists could be potentially useful agents for immune response modulation and enhancement.
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Affiliation(s)
- Masato Mashimo
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyoto, Japan
| | - Masayo Komori
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyoto, Japan
| | - Yuriko Y Matsui
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyoto, Japan
| | - Mami X Murase
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyoto, Japan
| | - Takeshi Fujii
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kyoto, Japan
| | - Shiori Takeshima
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Hiromi Okuyama
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Shiro Ono
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Yasuhiro Moriwaki
- Department of Pharmacology, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - Hidemi Misawa
- Department of Pharmacology, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - Koichiro Kawashima
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences, Tokyo, Japan
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Mengwasser J, Babes L, Cordes S, Mertlitz S, Riesner K, Shi Y, McGearey A, Kalupa M, Reinheckel T, Penack O. Cathepsin E Deficiency Ameliorates Graft-versus-Host Disease and Modifies Dendritic Cell Motility. Front Immunol 2017; 8:203. [PMID: 28298913 PMCID: PMC5331043 DOI: 10.3389/fimmu.2017.00203] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 02/14/2017] [Indexed: 01/15/2023] Open
Abstract
Microbial products influence immunity after allogeneic hematopoietic stem cell transplantation (allo-SCT). In this context, the role of cathepsin E (Ctse), an aspartate protease known to cleave bacterial peptides for antigen presentation in dendritic cells (DCs), has not been studied. During experimental acute graft-versus-host disease (GVHD), we found infiltration by Ctse-positive immune cells leading to higher Ctse RNA- and protein levels in target organs. In Ctse-deficient allo-SCT recipients, we found ameliorated GVHD, improved survival, and lower numbers of tissue-infiltrating DCs. Donor T cell proliferation was not different in Ctse-deficient vs. wild-type allo-SCT recipients in MHC-matched and MHC-mismatched models. Furthermore, Ctse-deficient DCs had an intact ability to induce allogeneic T cell proliferation, suggesting that its role in antigen presentation may not be the main mechanism how Ctse impacts GVHD. We found that Ctse deficiency significantly decreases DC motility in vivo, reduces adhesion to extracellular matrix (ECM), and diminishes invasion through ECM. We conclude that Ctse has a previously unrecognized role in regulating DC motility that possibly contributes to reduced DC counts and ameliorated inflammation in GVHD target organs of Ctse-deficient allo-SCT recipients. However, our data do not provide definite proof that the observed effect of Ctse−/− deficiency is exclusively mediated by DCs. A contribution of Ctse−/−-mediated functions in other recipient cell types, e.g., macrophages, cannot be excluded.
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Affiliation(s)
- Jörg Mengwasser
- Medical Department, Division of Hematology, Oncology and Tumor Immunology, Charité University Medicine , Berlin , Germany
| | - Liane Babes
- Faculty of Medicine, BIOSS Centre for Biological Signalling Studies, Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg , Freiburg , Germany
| | - Steffen Cordes
- Medical Department, Division of Hematology, Oncology and Tumor Immunology, Charité University Medicine , Berlin , Germany
| | - Sarah Mertlitz
- Medical Department, Division of Hematology, Oncology and Tumor Immunology, Charité University Medicine , Berlin , Germany
| | - Katarina Riesner
- Medical Department, Division of Hematology, Oncology and Tumor Immunology, Charité University Medicine , Berlin , Germany
| | - Yu Shi
- Medical Department, Division of Hematology, Oncology and Tumor Immunology, Charité University Medicine , Berlin , Germany
| | - Aleixandria McGearey
- Medical Department, Division of Hematology, Oncology and Tumor Immunology, Charité University Medicine , Berlin , Germany
| | - Martina Kalupa
- Medical Department, Division of Hematology, Oncology and Tumor Immunology, Charité University Medicine , Berlin , Germany
| | - Thomas Reinheckel
- Faculty of Medicine, BIOSS Centre for Biological Signalling Studies, Institute of Molecular Medicine and Cell Research, Albert-Ludwigs-University Freiburg , Freiburg , Germany
| | - Olaf Penack
- Medical Department, Division of Hematology, Oncology and Tumor Immunology, Charité University Medicine , Berlin , Germany
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Wang H, Geier MS, Howarth GS. Prebiotics: A Potential Treatment Strategy for the Chemotherapy-damaged Gut? Crit Rev Food Sci Nutr 2017; 56:946-56. [PMID: 25162145 DOI: 10.1080/10408398.2012.741082] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Mucositis, characterized by ulcerative lesions along the alimentary tract, is a common consequence of many chemotherapy regimens. Chemotherapy negatively disrupts the intestinal microbiota, resulting in increased numbers of potentially pathogenic bacteria, such as Clostridia and Enterobacteriaceae, and decreased numbers of "beneficial" bacteria, such as Lactobacilli and Bifidobacteria. Agents capable of restoring homeostasis in the bowel microbiota could, therefore, be applicable to mucositis. Prebiotics are indigestible compounds, commonly oligosaccharides, that seek to reverse chemotherapy-induced intestinal dysbiosis through selective colonization of the intestinal microbiota by probiotic bacteria. In addition, evidence is emerging that certain prebiotics contribute to nutrient digestibility and absorption, modulate intestinal barrier function through effects on mucin expression, and also modify mucosal immune responses, possibly via inflammasome-mediated processes. This review examines the known mechanisms of prebiotic action, and explores their potential for reducing the severity of chemotherapy-induced mucositis in the intestine.
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Affiliation(s)
- Hanru Wang
- a School of Animal and Veterinary Sciences, University of Adelaide , Roseworthy Campus , South Australia
| | - Mark S Geier
- a School of Animal and Veterinary Sciences, University of Adelaide , Roseworthy Campus , South Australia.,b South Australian Research and Development Institute, Pig and Poultry Production Institute, Nutrition Research Laboratory , Roseworthy , South Australia
| | - Gordon S Howarth
- a School of Animal and Veterinary Sciences, University of Adelaide , Roseworthy Campus , South Australia.,c Centre for Paediatric and Adolescent Gastroenterology, Children, Youth and Women's Health Service , North Adelaide , South Australia
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Yang ZC, Yi MJ, Shan YC, Wang C, Ran N, Jin LY, Fu P, Feng XY, Xu L, Qu ZH. Targeted inhibition of Six1 attenuates allergic airway inflammation and remodeling in asthmatic mice. Biomed Pharmacother 2016; 84:1820-1825. [PMID: 27847210 DOI: 10.1016/j.biopha.2016.10.090] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 10/24/2016] [Accepted: 10/30/2016] [Indexed: 11/29/2022] Open
Abstract
Asthma is an inflammatory disease of the airways, characterized by lung eosinophilia, mucus hypersecretion by goblet cells and airway hyperresponsiveness to inhaled allergens. The purpose of this study was to evaluate the effects of Six1 on airway inflammation and remodeling and the underlying mechanisms in a murine model of chronic asthma. Female BALB/c mice were randomly divided into four groups: phosphate-buffered saline control, ovalbumin (OVA)-induced asthma group, OVA+siNC and OVA+siSix1. In this mice model, Six1 expression level was significantly elevated in OVA-induced asthma of mice. Additionally, downregulation of Six1 dramatically decreased OVA-challenged inflammation, infiltration, and mucus production. Moreover, silencing of Six1 resulted in decreased levels of immunoglobulin E and inflammatory mediators and reduced inflammatory cell accumulation, as well as inhibiting the expression of important mediators including matrix metalloproteinase MMP-2 and MMP-9, which is related to airway remodeling. Further analysis indicated that silencing of Six1 can significantly inhibit NF-kB pathway activation in the lungs. .In conclusion, these findings indicated that the downregulation of Six1 effectively inhibited airway inflammation and reversed airway remodeling, which suggest that Six1 represents a promising therapeutic strategy for human allergic asthma.
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Affiliation(s)
- Zhao-Chuan Yang
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Ming-Ji Yi
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Yan-Chun Shan
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Chong Wang
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Ni Ran
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Li-Ying Jin
- Cerebrovascular Disease Research Institute, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Peng Fu
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Xue-Ying Feng
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Lei Xu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Zheng-Hai Qu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China.
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Cathepsin E promotes pulmonary emphysema via mitochondrial fission. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 184:2730-41. [PMID: 25239563 DOI: 10.1016/j.ajpath.2014.06.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Revised: 06/19/2014] [Accepted: 06/23/2014] [Indexed: 02/08/2023]
Abstract
Emphysema is characterized by loss of lung elasticity and irreversible air space enlargement, usually in the later decades of life. The molecular mechanisms of emphysema remain poorly defined. We identified a role for a novel cathepsin, cathepsin E, in promoting emphysema by inducing mitochondrial fission. Unlike previously reported cysteine cathepsins, which have been implicated in cigarette smoke-induced lung disease, cathepsin E is a nonlysosomal intracellular aspartic protease whose function has been described only in antigen processing. We examined lung tissue sections of persons with chronic obstructive pulmonary disease, a clinical entity that includes emphysematous change. Human chronic obstructive pulmonary disease lungs had markedly increased cathepsin E protein in the lung epithelium. We generated lung epithelial-targeted transgenic cathepsin E mice and found that they develop emphysema. Overexpression of cathepsin E resulted in increased E3 ubiquitin ligase parkin, mitochondrial fission protein dynamin-related protein 1, caspase activation/apoptosis, and ultimately loss of lung parenchyma resembling emphysema. Inhibiting dynamin-related protein 1, using a small molecule inhibitor in vitro or in vivo, inhibited cathepsin E-induced apoptosis and emphysema. To the best of our knowledge, our study is the first to identify links between cathepsin E, mitochondrial fission, and caspase activation/apoptosis in the pathogenesis of pulmonary emphysema. Our data expand the current understanding of molecular mechanisms of emphysema development and may provide new therapeutic targets.
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