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Jeong D, Chung YW, Ji H, Kim J, Seo JH, Han S, Moon S, Rha MS, Cho HJ, Kim CH, Ryu JH, Kim HH, Yoon JH. Let-7a-5p Inhibits IL-4-induced MUC5AC Expression and Mucus Hypersecretion and Is Transported in Nasal Lavage Extracellular Vesicles. Am J Respir Cell Mol Biol 2024; 71:375-379. [PMID: 39212484 DOI: 10.1165/rcmb.2023-0268le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024] Open
Affiliation(s)
- Daeun Jeong
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Youn Wook Chung
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Haein Ji
- Sungkyunkwan University Seoul, Republic of Korea
- Samsung Medical Center Seoul, Republic of Korea
| | - Jinsun Kim
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Ju Hee Seo
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Seunghan Han
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Sungmin Moon
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Min-Seok Rha
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Hyung-Ju Cho
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Chang-Hoon Kim
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Ji-Hwan Ryu
- Yonsei University College of Medicine Seoul, Republic of Korea
| | - Hyeon Ho Kim
- Sungkyunkwan University Seoul, Republic of Korea
- Samsung Medical Center Seoul, Republic of Korea
| | - Joo-Heon Yoon
- Yonsei University College of Medicine Seoul, Republic of Korea
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2
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Raja Xavier JP, Okumura T, Apweiler M, Chacko NA, Singh Y, Brucker SY, Takeda S, Lang F, Salker MS. Placental growth factor mediates pathological uterine angiogenesis by activating the NFAT5-SGK1 signaling axis in the endometrium: implications for preeclampsia development. Biol Res 2024; 57:55. [PMID: 39152497 PMCID: PMC11330076 DOI: 10.1186/s40659-024-00526-w] [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: 05/10/2024] [Accepted: 06/26/2024] [Indexed: 08/19/2024] Open
Abstract
After menstruation the uterine spiral arteries are repaired through angiogenesis. This process is tightly regulated by the paracrine communication between endometrial stromal cells (EnSCs) and endothelial cells. Any molecular aberration in these processes can lead to complications in pregnancy including miscarriage or preeclampsia (PE). Placental growth factor (PlGF) is a known contributing factor for pathological angiogenesis but the mechanisms remain poorly understood. In this study, we investigated whether PlGF contributes to pathological uterine angiogenesis by disrupting EnSCs and endothelial paracrine communication. We observed that PlGF mediates a tonicity-independent activation of nuclear factor of activated T cells 5 (NFAT5) in EnSCs. NFAT5 activated downstream targets including SGK1, HIF-1α and VEGF-A. In depth characterization of PlGF - conditioned medium (CM) from EnSCs using mass spectrometry and ELISA methods revealed low VEGF-A and an abundance of extracellular matrix organization associated proteins. Secreted factors in PlGF-CM impeded normal angiogenic cues in endothelial cells (HUVECs) by downregulating Notch-VEGF signaling. Interestingly, PlGF-CM failed to support human placental (BeWo) cell invasion through HUVEC monolayer. Inhibition of SGK1 in EnSCs improved angiogenic effects in HUVECs and promoted BeWo invasion, revealing SGK1 as a key intermediate player modulating PlGF mediated anti-angiogenic signaling. Taken together, perturbed PlGF-NFAT5-SGK1 signaling in the endometrium can contribute to pathological uterine angiogenesis by negatively regulating EnSCs-endothelial crosstalk resulting in poor quality vessels in the uterine microenvironment. Taken together the signaling may impact on normal trophoblast invasion and thus placentation and, may be associated with an increased risk of complications such as PE.
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Affiliation(s)
- Janet P Raja Xavier
- Department of Women's Health, University of Tübingen, 72076, Calwerstraße 7/6, Tübingen, Germany
| | - Toshiyuki Okumura
- Department of Obstetrics and Gynaecology, Juntendo University School of Medicine, Tokyo, Japan
| | - Melina Apweiler
- Department of Women's Health, University of Tübingen, 72076, Calwerstraße 7/6, Tübingen, Germany
| | - Nirzari A Chacko
- Department of Women's Health, University of Tübingen, 72076, Calwerstraße 7/6, Tübingen, Germany
| | - Yogesh Singh
- Department of Women's Health, University of Tübingen, 72076, Calwerstraße 7/6, Tübingen, Germany
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Sara Y Brucker
- Department of Women's Health, University of Tübingen, 72076, Calwerstraße 7/6, Tübingen, Germany
| | - Satoru Takeda
- Department of Obstetrics and Gynaecology, Juntendo University School of Medicine, Tokyo, Japan
| | - Florian Lang
- Department of Physiology, University of Tübingen, Tübingen, Germany
| | - Madhuri S Salker
- Department of Women's Health, University of Tübingen, 72076, Calwerstraße 7/6, Tübingen, Germany.
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3
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Cisternino F, Ometto S, Chatterjee S, Giacopuzzi E, Levine AP, Glastonbury CA. Self-supervised learning for characterising histomorphological diversity and spatial RNA expression prediction across 23 human tissue types. Nat Commun 2024; 15:5906. [PMID: 39003292 PMCID: PMC11246527 DOI: 10.1038/s41467-024-50317-w] [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: 08/22/2023] [Accepted: 07/04/2024] [Indexed: 07/15/2024] Open
Abstract
As vast histological archives are digitised, there is a pressing need to be able to associate specific tissue substructures and incident pathology to disease outcomes without arduous annotation. Here, we learn self-supervised representations using a Vision Transformer, trained on 1.7 M histology images across 23 healthy tissues in 838 donors from the Genotype Tissue Expression consortium (GTEx). Using these representations, we can automatically segment tissues into their constituent tissue substructures and pathology proportions across thousands of whole slide images, outperforming other self-supervised methods (43% increase in silhouette score). Additionally, we can detect and quantify histological pathologies present, such as arterial calcification (AUROC = 0.93) and identify missing calcification diagnoses. Finally, to link gene expression to tissue morphology, we introduce RNAPath, a set of models trained on 23 tissue types that can predict and spatially localise individual RNA expression levels directly from H&E histology (mean genes significantly regressed = 5156, FDR 1%). We validate RNAPath spatial predictions with matched ground truth immunohistochemistry for several well characterised control genes, recapitulating their known spatial specificity. Together, these results demonstrate how self-supervised machine learning when applied to vast histological archives allows researchers to answer questions about tissue pathology, its spatial organisation and the interplay between morphological tissue variability and gene expression.
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Affiliation(s)
| | - Sara Ometto
- Human Technopole, Viale Rita Levi-Montalcini 1, 20157, Milan, Italy
| | | | | | - Adam P Levine
- Research Department of Pathology, University College London, London, UK
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4
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Musiol S, Harris CP, Gschwendtner S, Burrell A, Amar Y, Schnautz B, Renisch D, Braun SC, Haak S, Schloter M, Schmidt-Weber CB, Zielinski CE, Alessandrini F. The impact of high-salt diet on asthma in humans and mice: Effect on specific T-cell signatures and microbiome. Allergy 2024; 79:1844-1857. [PMID: 38798015 DOI: 10.1111/all.16148] [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: 12/06/2023] [Revised: 03/25/2024] [Accepted: 04/14/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND The rise in asthma has been linked to different environmental and lifestyle factors including dietary habits. Whether dietary salt contributes to asthma incidence, remains controversial. We aimed to investigate the impact of higher salt intake on asthma incidence in humans and to evaluate underlying mechanisms using mouse models. METHODS Epidemiological research was conducted using the UK Biobank Resource. Data were obtained from 42,976 participants with a history of allergies. 24-h sodium excretion was estimated from spot urine, and its association with asthma incidence was assessed by Cox regression, adjusting for relevant covariates. For mechanistic studies, a mouse model of mite-induced allergic airway inflammation (AAI) fed with high-salt diet (HSD) or normal-salt chow was used to characterize disease development. The microbiome of lung and feces (as proxy for gut) was analyzed via 16S rRNA gene based metabarcoding approach. RESULTS In humans, urinary sodium excretion was directly associated with asthma incidence among females but not among males. HSD-fed female mice displayed an aggravated AAI characterized by increased levels of total IgE, a TH2-TH17-biased inflammatory cell infiltration accompanied by upregulation of osmosensitive stress genes. HSD induced distinct changes in serum short chain fatty acids and in both gut and lung microbiome, with a lower Bacteroidetes to Firmicutes ratio and decreased Lactobacillus relative abundance in the gut, and enriched members of Gammaproteobacteria in the lung. CONCLUSIONS High dietary salt consumption correlates with asthma incidence in female adults with a history of allergies. Female mice revealed HSD-induced T-cell lung profiles accompanied by alterations of gut and lung microbiome.
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Affiliation(s)
- Stephanie Musiol
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM) and Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Carla P Harris
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Dr. von Hauner Children's Hospital, University Hospital, LMU of Munich, Munich, Germany
| | - Silvia Gschwendtner
- Research Unit for Comparative Microbiome Analysis, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Amy Burrell
- Department of Infection Immunology, Leibniz Institute for Natural Product Research & Infection Biology, Hans-Knöll-Institute, Jena, Germany
- Institute of Microbiology, Faculty of Biological Sciences, Friedrich Schiller University, Jena, Germany
| | - Yacine Amar
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Benjamin Schnautz
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM) and Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Dennis Renisch
- Department of Chemistry - TRIGA site, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Sonja C Braun
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Chair of Epidemiology, Faculty of Medicine, LMU of Munich, Munich, Germany
| | - Stefan Haak
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM) and Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Michael Schloter
- Research Unit for Comparative Microbiome Analysis, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Carsten B Schmidt-Weber
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM) and Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Christina E Zielinski
- Department of Infection Immunology, Leibniz Institute for Natural Product Research & Infection Biology, Hans-Knöll-Institute, Jena, Germany
- Institute of Microbiology, Faculty of Biological Sciences, Friedrich Schiller University, Jena, Germany
- Center for Translational Cancer Research & Institute of Virology, Technical University of Munich, Munich, Germany
| | - Francesca Alessandrini
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM) and Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Member of the German Center of Lung Research (DZL), Munich, Germany
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5
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Mo Q, Bolideei M, Rong SJ, Luo JH, Yang CL, Lu WY, Chen QJ, Zhao JW, Wang FX, Wang T, Li Y, Luo X, Zhang S, Xiong F, Yu QL, Zhang ZY, Liu SW, Sun F, Dong LL, Wang CY. GSK2334470 attenuates high salt-exacerbated rheumatoid arthritis progression by restoring Th17/Treg homeostasis. iScience 2024; 27:109798. [PMID: 38947509 PMCID: PMC11214488 DOI: 10.1016/j.isci.2024.109798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/09/2024] [Accepted: 04/18/2024] [Indexed: 07/02/2024] Open
Abstract
High salt (HS) consumption is a risk factor for multiple autoimmune disorders via disturbing immune homeostasis. Nevertheless, the exact mechanisms by which HS exacerbates rheumatoid arthritis (RA) pathogenesis remain poorly defined. Herein, we found that heightened phosphorylation of PDPK1 and SGK1 upon HS exposure attenuated FoxO1 expression to enhance the glycolytic capacity of CD4 T cells, resulting in strengthened Th17 but compromised Treg program. GSK2334470 (GSK), a dual PDPK1/SGK1 inhibitor, effectively mitigated the HS-induced enhancement in glycolytic capacity and the overproduction of IL-17A. Therefore, administration of GSK markedly alleviated HS-exacerbated RA progression in collagen-induced arthritis (CIA) model. Collectively, our data indicate that HS consumption subverts Th17/Treg homeostasis through the PDPK1-SGK1-FoxO1 signaling, while GSK could be a viable drug against RA progression in clinical settings.
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Affiliation(s)
- Qian Mo
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
- Department of Rheumatology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Mansoor Bolideei
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Shan-Jie Rong
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Jia-Hui Luo
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Chun-Liang Yang
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Wan-Ying Lu
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Qi-Jie Chen
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Jia-Wei Zhao
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Fa-Xi Wang
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Ting Wang
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Yang Li
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Xi Luo
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Shu Zhang
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Fei Xiong
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Qi-Lin Yu
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Zi-Yun Zhang
- Department of Rheumatology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Shi-Wei Liu
- Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, the Key Laboratory of Endocrine and Metabolic Diseases of Shanxi Province, Taiyuan, China
| | - Fei Sun
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Ling-Li Dong
- Department of Rheumatology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Cong-Yi Wang
- Department of Respiratory and Critical Care Medicine, the Center for Biomedical Research, NHC Key Laboratory of Respiratory Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
- Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, the Key Laboratory of Endocrine and Metabolic Diseases of Shanxi Province, Taiyuan, China
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6
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Okumura T, Raja Xavier JP, Pasternak J, Yang Z, Hang C, Nosirov B, Singh Y, Admard J, Brucker SY, Kommoss S, Takeda S, Staebler A, Lang F, Salker MS. Rel Family Transcription Factor NFAT5 Upregulates COX2 via HIF-1α Activity in Ishikawa and HEC1a Cells. Int J Mol Sci 2024; 25:3666. [PMID: 38612478 PMCID: PMC11012216 DOI: 10.3390/ijms25073666] [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: 08/01/2023] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
Nuclear factor of activated T cells 5 (NFAT5) and cyclooxygenase 2 (COX2; PTGS2) both participate in diverse pathologies including cancer progression. However, the biological role of the NFAT5-COX2 signaling pathway in human endometrial cancer has remained elusive. The present study explored whether NFAT5 is expressed in endometrial tumors and if NFAT5 participates in cancer progression. To gain insights into the underlying mechanisms, NFAT5 protein abundance in endometrial cancer tissue was visualized by immunohistochemistry and endometrial cancer cells (Ishikawa and HEC1a) were transfected with NFAT5 or with an empty plasmid. As a result, NFAT5 expression is more abundant in high-grade than in low-grade endometrial cancer tissue. RNA sequencing analysis of NFAT5 overexpression in Ishikawa cells upregulated 37 genes and downregulated 20 genes. Genes affected included cyclooxygenase 2 and hypoxia inducible factor 1α (HIF1A). NFAT5 transfection and/or treatment with HIF-1α stabilizer exerted a strong stimulating effect on HIF-1α promoter activity as well as COX2 expression level and prostaglandin E2 receptor (PGE2) levels. Our findings suggest that activation of NFAT5-HIF-1α-COX2 axis could promote endometrial cancer progression.
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Affiliation(s)
- Toshiyuki Okumura
- Department of Women’s Health, Tübingen University Hospital, D-72076 Tübingen, Germany; (T.O.); (J.P.R.X.); (J.P.); (C.H.); (Y.S.); (S.Y.B.); (S.K.)
- Department of Obstetrics and Gynecology, Faculty of Medicine, Juntendo University, Tokyo 113-8421, Japan;
| | - Janet P. Raja Xavier
- Department of Women’s Health, Tübingen University Hospital, D-72076 Tübingen, Germany; (T.O.); (J.P.R.X.); (J.P.); (C.H.); (Y.S.); (S.Y.B.); (S.K.)
| | - Jana Pasternak
- Department of Women’s Health, Tübingen University Hospital, D-72076 Tübingen, Germany; (T.O.); (J.P.R.X.); (J.P.); (C.H.); (Y.S.); (S.Y.B.); (S.K.)
| | - Zhiqi Yang
- Department of Women’s Health, Tübingen University Hospital, D-72076 Tübingen, Germany; (T.O.); (J.P.R.X.); (J.P.); (C.H.); (Y.S.); (S.Y.B.); (S.K.)
| | - Cao Hang
- Department of Women’s Health, Tübingen University Hospital, D-72076 Tübingen, Germany; (T.O.); (J.P.R.X.); (J.P.); (C.H.); (Y.S.); (S.Y.B.); (S.K.)
| | - Bakhtiyor Nosirov
- Department of Cancer Research, Luxembourg Institute of Health, L-1210 Luxembourg, Luxembourg
| | - Yogesh Singh
- Department of Women’s Health, Tübingen University Hospital, D-72076 Tübingen, Germany; (T.O.); (J.P.R.X.); (J.P.); (C.H.); (Y.S.); (S.Y.B.); (S.K.)
- Institute of Medical Genetics and Applied Genomics, Eberhard Karls University, D-72074 Tübingen, Germany;
| | - Jakob Admard
- Institute of Medical Genetics and Applied Genomics, Eberhard Karls University, D-72074 Tübingen, Germany;
| | - Sara Y. Brucker
- Department of Women’s Health, Tübingen University Hospital, D-72076 Tübingen, Germany; (T.O.); (J.P.R.X.); (J.P.); (C.H.); (Y.S.); (S.Y.B.); (S.K.)
| | - Stefan Kommoss
- Department of Women’s Health, Tübingen University Hospital, D-72076 Tübingen, Germany; (T.O.); (J.P.R.X.); (J.P.); (C.H.); (Y.S.); (S.Y.B.); (S.K.)
| | - Satoru Takeda
- Department of Obstetrics and Gynecology, Faculty of Medicine, Juntendo University, Tokyo 113-8421, Japan;
| | - Annette Staebler
- Institute of Pathology, Eberhard Karls University, D-72074 Tübingen, Germany;
| | - Florian Lang
- Institute of Physiology, Eberhard Karls University, D-72074 Tübingen, Germany;
| | - Madhuri S. Salker
- Department of Women’s Health, Tübingen University Hospital, D-72076 Tübingen, Germany; (T.O.); (J.P.R.X.); (J.P.); (C.H.); (Y.S.); (S.Y.B.); (S.K.)
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7
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Kim S, Leem G, Choi J, Koh Y, Lee S, Nam SH, Kim JS, Park CH, Hwang HK, Min KI, Jo JH, Lee HS, Chung MJ, Park JY, Park SW, Song SY, Shin EC, Kang CM, Bang S, Park JE. Integrative analysis of spatial and single-cell transcriptome data from human pancreatic cancer reveals an intermediate cancer cell population associated with poor prognosis. Genome Med 2024; 16:20. [PMID: 38297291 PMCID: PMC10832111 DOI: 10.1186/s13073-024-01287-7] [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: 10/12/2022] [Accepted: 01/12/2024] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND Recent studies using single-cell transcriptomic analysis have reported several distinct clusters of neoplastic epithelial cells and cancer-associated fibroblasts in the pancreatic cancer tumor microenvironment. However, their molecular characteristics and biological significance have not been clearly elucidated due to intra- and inter-tumoral heterogeneity. METHODS We performed single-cell RNA sequencing using enriched non-immune cell populations from 17 pancreatic tumor tissues (16 pancreatic cancer and one high-grade dysplasia) and generated paired spatial transcriptomic data from seven patient samples. RESULTS We identified five distinct functional subclusters of pancreatic cancer cells and six distinct cancer-associated fibroblast subclusters. We deeply profiled their characteristics, and we found that these subclusters successfully deconvoluted most of the features suggested in bulk transcriptome analysis of pancreatic cancer. Among those subclusters, we identified a novel cancer cell subcluster, Ep_VGLL1, showing intermediate characteristics between the extremities of basal-like and classical dichotomy, despite its prognostic value. Molecular features of Ep_VGLL1 suggest its transitional properties between basal-like and classical subtypes, which is supported by spatial transcriptomic data. CONCLUSIONS This integrative analysis not only provides a comprehensive landscape of pancreatic cancer and fibroblast population, but also suggests a novel insight to the dynamic states of pancreatic cancer cells and unveils potential therapeutic targets.
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Affiliation(s)
- Seongryong Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Yuseong-Gu, Daejeon, 34141, Republic of Korea
| | - Galam Leem
- Division of Gastroenterology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Junjeong Choi
- Department of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, College of Pharmacy, Yonsei University, Incheon, Republic of Korea
| | - Yongjun Koh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Yuseong-Gu, Daejeon, 34141, Republic of Korea
| | - Suho Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Yuseong-Gu, Daejeon, 34141, Republic of Korea
| | - Sang-Hee Nam
- Department of Internal Medicine, Graduate School of Yonsei University, Seoul, Republic of Korea
| | - Jin Su Kim
- Department of Internal Medicine, Graduate School of Yonsei University, Seoul, Republic of Korea
| | - Chan Hee Park
- Division of Gastroenterology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Ho Kyoung Hwang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Yonsei Cancer Center, Yonsei University College of Medicine, Pancreatobiliary Cancer Center, Severance Hospital, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
- Pancreatobiliary Cancer Center, Yonsei Cancer Center, Severance Hospital, Seoul, Republic of Korea
| | - Kyoung Il Min
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Yuseong-Gu, Daejeon, 34141, Republic of Korea
| | - Jung Hyun Jo
- Division of Gastroenterology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Hee Seung Lee
- Division of Gastroenterology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Moon Jae Chung
- Division of Gastroenterology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Jeong Youp Park
- Division of Gastroenterology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Seung Woo Park
- Division of Gastroenterology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Si Young Song
- Division of Gastroenterology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| | - Eui-Cheol Shin
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Yuseong-Gu, Daejeon, 34141, Republic of Korea
| | - Chang Moo Kang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Yonsei Cancer Center, Yonsei University College of Medicine, Pancreatobiliary Cancer Center, Severance Hospital, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea.
- Pancreatobiliary Cancer Center, Yonsei Cancer Center, Severance Hospital, Seoul, Republic of Korea.
| | - Seungmin Bang
- Division of Gastroenterology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea.
| | - Jong-Eun Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Yuseong-Gu, Daejeon, 34141, Republic of Korea.
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8
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Zhang S, Zhu R, Pan B, Xu H, Olufemi MF, Gathagan RJ, Li Y, Zhang L, Zhang J, Xiang W, Kagan EM, Cao X, Yuan C, Kim SJ, Williams CK, Magaki S, Vinters HV, Lashuel HA, Garcia BA, James Petersson E, Trojanowski JQ, Lee VMY, Peng C. Post-translational modifications of soluble α-synuclein regulate the amplification of pathological α-synuclein. Nat Neurosci 2023; 26:213-225. [PMID: 36690898 PMCID: PMC10103650 DOI: 10.1038/s41593-022-01239-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 11/29/2022] [Indexed: 01/24/2023]
Abstract
Cell-to-cell transmission and subsequent amplification of pathological proteins promote neurodegenerative disease progression. Most research on this has focused on pathological protein seeds, but how their normal counterparts, which are converted to pathological forms during transmission, regulate transmission is less understood. Here we show in cultured cells that phosphorylation of soluble, nonpathological α-synuclein (α-Syn) at previously identified sites dramatically affects the amplification of pathological α-Syn, which underlies Parkinson's disease and other α-synucleinopathies, in a conformation- and phosphorylation site-specific manner. We performed LC-MS/MS analyses on soluble α-Syn purified from Parkinson's disease and other α-synucleinopathies, identifying many new α-Syn post-translational modifications (PTMs). In addition to phosphorylation, acetylation of soluble α-Syn also modified pathological α-Syn transmission in a site- and conformation-specific manner. Moreover, phosphorylation of soluble α-Syn could modulate the seeding properties of pathological α-Syn. Our study represents the first systematic analysis how of soluble α-Syn PTMs affect the spreading and amplification of pathological α-Syn, which may affect disease progression.
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Affiliation(s)
- Shujing Zhang
- Department of Neurology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Ruowei Zhu
- Department of Neurology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Buyan Pan
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Hong Xu
- The Department of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, the Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Modupe F Olufemi
- The Department of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, the Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ronald J Gathagan
- The Department of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, the Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Yuanxi Li
- Department of Neurology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
- Institute for Cognitive Neurodynamics, East China University of Science and Technology, Shanghai, China
- School of Mathematics, East China University of Science and Technology, Shanghai, China
| | - Luyan Zhang
- Department of Neurology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Jasmine Zhang
- Department of Neurology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Wenxuan Xiang
- Department of Neurology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Eliot Masahiro Kagan
- Department of Neurology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | | | | | - Soo-Jung Kim
- The Department of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, the Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Christopher K Williams
- Section of Neuropathology, Department of Pathology and Laboratory Medicine, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Shino Magaki
- Section of Neuropathology, Department of Pathology and Laboratory Medicine, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
| | - Harry V Vinters
- Section of Neuropathology, Department of Pathology and Laboratory Medicine, Department of Neurology, and Brain Research Institute, Ronald Reagan UCLA Medical Center and David Geffen School of Medicine, University of California - Los Angeles, Los Angeles, CA, USA
| | - Hilal A Lashuel
- Laboratory of Molecular and Chemical Biology of Neurodegeneration, Brain Mind Institute, Swiss Federal Institute of Technology, Lausanne, Switzerland
| | - Benjamin A Garcia
- Department of Biochemistry and Molecular Biophysics, Washington University St Louis, St Louis, MO, USA
| | - E James Petersson
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - John Q Trojanowski
- The Department of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, the Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Virginia M-Y Lee
- The Department of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, the Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Chao Peng
- Department of Neurology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA.
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, USA.
- Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA.
- Mary S. Easton Center for Alzheimer's Research, University of California, Los Angeles, Los Angeles, CA, USA.
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9
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Kato T, Asakura T, Edwards CE, Dang H, Mikami Y, Okuda K, Chen G, Sun L, Gilmore RC, Hawkins P, De la Cruz G, Cooley MR, Bailey AB, Hewitt SM, Chertow DS, Borczuk AC, Salvatore S, Martinez FJ, Thorne LB, Askin FB, Ehre C, Randell SH, O’Neal WK, Baric RS, Boucher RC. Prevalence and Mechanisms of Mucus Accumulation in COVID-19 Lung Disease. Am J Respir Crit Care Med 2022; 206:1336-1352. [PMID: 35816430 PMCID: PMC9746856 DOI: 10.1164/rccm.202111-2606oc] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 07/06/2022] [Indexed: 01/27/2023] Open
Abstract
Rationale: The incidence and sites of mucus accumulation and molecular regulation of mucin gene expression in coronavirus (COVID-19) lung disease have not been reported. Objectives: To characterize the incidence of mucus accumulation and the mechanisms mediating mucin hypersecretion in COVID-19 lung disease. Methods: Airway mucus and mucins were evaluated in COVID-19 autopsy lungs by Alcian blue and periodic acid-Schiff staining, immunohistochemical staining, RNA in situ hybridization, and spatial transcriptional profiling. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-infected human bronchial epithelial (HBE) cultures were used to investigate mechanisms of SARS-CoV-2-induced mucin expression and synthesis and test candidate countermeasures. Measurements and Main Results: MUC5B and variably MUC5AC RNA concentrations were increased throughout all airway regions of COVID-19 autopsy lungs, notably in the subacute/chronic disease phase after SARS-CoV-2 clearance. In the distal lung, MUC5B-dominated mucus plugging was observed in 90% of subjects with COVID-19 in both morphologically identified bronchioles and microcysts, and MUC5B accumulated in damaged alveolar spaces. SARS-CoV-2-infected HBE cultures exhibited peak titers 3 days after inoculation, whereas induction of MUC5B/MUC5AC peaked 7-14 days after inoculation. SARS-CoV-2 infection of HBE cultures induced expression of epidermal growth factor receptor (EGFR) ligands and inflammatory cytokines (e.g., IL-1α/β) associated with mucin gene regulation. Inhibiting EGFR/IL-1R pathways or administration of dexamethasone reduced SARS-CoV-2-induced mucin expression. Conclusions: SARS-CoV-2 infection is associated with a high prevalence of distal airspace mucus accumulation and increased MUC5B expression in COVID-19 autopsy lungs. HBE culture studies identified roles for EGFR and IL-1R signaling in mucin gene regulation after SARS-CoV-2 infection. These data suggest that time-sensitive mucolytic agents, specific pathway inhibitors, or corticosteroid administration may be therapeutic for COVID-19 lung disease.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Stephen M. Hewitt
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Daniel S. Chertow
- Critical Care Medicine Department, National Institutes of Health Clinical Center, Bethesda, Maryland; and
| | | | | | | | - Leigh B. Thorne
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Frederic B. Askin
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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10
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Jin M, Matsumoto S, Ayaki T, Yamakado H, Taguchi T, Togawa N, Konno A, Hirai H, Nakajima H, Komai S, Ishida R, Chiba S, Takahashi R, Takao T, Hirotsune S. DOPAnization of tyrosine in α-synuclein by tyrosine hydroxylase leads to the formation of oligomers. Nat Commun 2022; 13:6880. [PMID: 36371400 PMCID: PMC9653393 DOI: 10.1038/s41467-022-34555-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 10/27/2022] [Indexed: 11/15/2022] Open
Abstract
Parkinson's disease is a progressive neurodegenerative disorder characterized by the preferential loss of tyrosine hydroxylase (TH)-expressing dopaminergic neurons in the substantia nigra. Although the abnormal accumulation and aggregation of α-synuclein have been implicated in the pathogenesis of Parkinson's disease, the underlying mechanisms remain largely elusive. Here, we found that TH converts Tyr136 in α-synuclein into dihydroxyphenylalanine (DOPA; Y136DOPA) through mass spectrometric analysis. Y136DOPA modification was clearly detected by a specific antibody in the dopaminergic neurons of α-synuclein-overexpressing mice as well as human α-synucleinopathies. Furthermore, dopanized α-synuclein tended to form oligomers rather than large fibril aggregates and significantly enhanced neurotoxicity. Our findings suggest that the dopanization of α-synuclein by TH may contribute to oligomer and/or seed formation causing neurodegeneration with the potential to shed light on the pathogenesis of Parkinson's disease.
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Affiliation(s)
- Mingyue Jin
- Department of Genetic Disease Research, Osaka Metropolitan University Graduate School of Medicine, Abeno-ku, Osaka 545-8585 Japan ,grid.443385.d0000 0004 1798 9548Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, Guangxi 541199 China
| | - Sakiko Matsumoto
- Department of Genetic Disease Research, Osaka Metropolitan University Graduate School of Medicine, Abeno-ku, Osaka 545-8585 Japan
| | - Takashi Ayaki
- grid.258799.80000 0004 0372 2033Department of Neurology, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto 606-8507 Japan
| | - Hodaka Yamakado
- grid.258799.80000 0004 0372 2033Department of Neurology, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto 606-8507 Japan
| | - Tomoyuki Taguchi
- grid.258799.80000 0004 0372 2033Department of Neurology, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto 606-8507 Japan
| | - Natsuko Togawa
- grid.258799.80000 0004 0372 2033Department of Neurology, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto 606-8507 Japan
| | - Ayumu Konno
- grid.256642.10000 0000 9269 4097Department of Neurophysiology & Neural Repair, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511 Japan
| | - Hirokazu Hirai
- grid.256642.10000 0000 9269 4097Department of Neurophysiology & Neural Repair, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511 Japan
| | - Hiroshi Nakajima
- Division of Molecular Materials Science, Osaka Metropolitan University Graduate School of Science, Sumiyoshi-ku, Osaka 558-8585 Japan
| | - Shoji Komai
- grid.260493.a0000 0000 9227 2257Department of Science and Technology, Nara Institute of Science Technology, Ikoma, Nara 630-0192 Japan
| | - Ryuichi Ishida
- Department of Genetic Disease Research, Osaka Metropolitan University Graduate School of Medicine, Abeno-ku, Osaka 545-8585 Japan
| | - Syuhei Chiba
- Department of Genetic Disease Research, Osaka Metropolitan University Graduate School of Medicine, Abeno-ku, Osaka 545-8585 Japan
| | - Ryosuke Takahashi
- grid.258799.80000 0004 0372 2033Department of Neurology, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto 606-8507 Japan
| | - Toshifumi Takao
- grid.136593.b0000 0004 0373 3971Laboratory of Protein Profiling and Functional Proteomics, Osaka University Institute for Protein Research, Suita, Osaka 565-0871 Japan
| | - Shinji Hirotsune
- Department of Genetic Disease Research, Osaka Metropolitan University Graduate School of Medicine, Abeno-ku, Osaka 545-8585 Japan
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11
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Chen X, Chen M, Wolynes PG. Exploring the Interplay between Disordered and Ordered Oligomer Channels on the Aggregation Energy Landscapes of α-Synuclein. J Phys Chem B 2022; 126:5250-5261. [PMID: 35815598 DOI: 10.1021/acs.jpcb.2c03676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The abnormal aggregation of α-synulcein is associated with multiple neurodegenerative diseases such as Parkinson's disease. The hydrophobic non-amyloid component (NAC) region of α-synuclein comprises the core of the fibril in vitro and in vivo. In this work, we study the aggregation landscape of the hydrophobic NAC region of α-synuclein using a transferrable coarse-grained force field, the associative memory water-mediated structure, and energy model (AWSEM). Using structural similarity, we can group metastable states on the free energy landscape of aggregation into three types of oligomers: disordered oligomers, prefibrillar oligomers with disordered tips, and ordered prefibrillar oligomers. The prefibrillar oligomers with disordered tips have more in-register parallel β strands than do the fully disordered oligomers but have fewer in-register parallel β strands than the ordered prefibrillar oligomers. Along with the ordered prefibrillar species, the disordered oligomeric states dominate at small oligomer sizes while the prefibrillar species with disordered tips thermodynamically dominate with the growth of oligomers. The topology of the aggregation landscape and observations in simulations suggest there is backtracking between ordered prefibrillar oligomers and other kinds of oligomers as the aggregation proceeds. The significant structural differences between the ordered prefibrillar oligomers and the disordered oligomers support the idea that the growth of these two kinds of oligomers involves kinetically independent parallel pathways. In contrast, the overall structural similarity between the fully ordered prefibrillar oligomers and the prefibrillar oligomers with disordered tips implies that two channels can interconvert on slower time scales. We also evaluate the effects of phosphorylation on the aggregation free energy landscape using statistical mechanical perturbation theory.
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Affiliation(s)
- Xun Chen
- Center for Theoretical Biological Physics, Houston, Texas 77005, United States.,Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Mingchen Chen
- Department of Research and Development, neoX Biotech, Beijing 102206, China
| | - Peter G Wolynes
- Center for Theoretical Biological Physics, Houston, Texas 77005, United States.,Department of Chemistry, Rice University, Houston, Texas 77005, United States.,Department of Bioengineering, Rice University, Houston, Texas 77005, United States
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12
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Li J, Wang X, Lan T, Lu Y, Hong M, Ding L, Wang L. CDK5/NFAT5-Regulated Transporters Involved in Osmoregulation in Fejervarya cancrivora. BIOLOGY 2022; 11:biology11060858. [PMID: 35741379 PMCID: PMC9220195 DOI: 10.3390/biology11060858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 11/19/2022]
Abstract
Crab-eating frogs (Fejervarya cancrivora) can live in brackish water with a salinity of up to 18‱, although most amphibians are not able to tolerate such high saline environments. To investigate its potential osmoregulation, we conducted experiments in F. cancrivora and F. multistriata. The results showed that F. cancrivora made use of ions (such as Na+ and Cl−) to increase intracellular concentrations via the Na+/K+-ATPase (NKA) enzyme. The mRNA expression of aldose reductase (AR) was significantly higher in F. cancrivora (p < 0.05), indicating that more organic osmolytes were produced and transported to maintain cellular homeosis. The mRNA expressions of Aquaporin 1 (AQP1) and AQP3 in kidney were significantly higher in F. cancrivora, while AQP expression in skin was higher in F. multistriata (p < 0.05). The mRNA level in activating the transcription of the nuclear factor of activated T cells-5 (NFAT5) which is one of the target genes of regulating the cellular response to hypertonicity, was higher in F. cancrivora. The protein expression of CDK5, the upstream protein of the NFAT5 pathway, was 2 times higher in F. cancrivora. Therefore, we can conclude that CDK5/NFAT5-regulated transporters might be involved in osmoregulation in F. cancrivora.
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Affiliation(s)
| | | | | | | | | | - Li Ding
- Correspondence: (L.D.); (L.W.)
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13
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Thurman AL, Li X, Villacreses R, Yu W, Gong H, Mather SE, Romano-Ibarra GS, Meyerholz DK, Stoltz DA, Welsh MJ, Thornell IM, Zabner J, Pezzulo AA. A Single-Cell Atlas of Large and Small Airways at Birth in a Porcine Model of Cystic Fibrosis. Am J Respir Cell Mol Biol 2022; 66:612-622. [PMID: 35235762 PMCID: PMC9163647 DOI: 10.1165/rcmb.2021-0499oc] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/26/2022] [Indexed: 11/24/2022] Open
Abstract
Lack of CFTR (cystic fibrosis transmembrane conductance regulator) affects the transcriptome, composition, and function of large and small airway epithelia in people with advanced cystic fibrosis (CF); however, whether lack of CFTR causes cell-intrinsic abnormalities present at birth versus inflammation-dependent abnormalities is unclear. We performed a single-cell RNA-sequencing census of microdissected small airways from newborn CF pigs, which recapitulate CF host defense defects and pathology over time. Lack of CFTR minimally affected the transcriptome of large and small airways at birth, suggesting that infection and inflammation drive transcriptomic abnormalities in advanced CF. Importantly, common small airway epithelial cell types expressed a markedly different transcriptome than corresponding large airway cell types. Quantitative immunohistochemistry and electrophysiology of small airway epithelia demonstrated basal cells that reach the apical surface and a water and ion transport advantage. This single cell atlas highlights the archetypal nature of airway epithelial cells with location-dependent gene expression and function.
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Affiliation(s)
| | - Xiaopeng Li
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, Michigan
| | | | | | | | | | | | | | - David A. Stoltz
- Department of Internal Medicine
- Pappajohn Biomedical Institute
- Department of Molecular Physiology and Biophysics, and
- Department of Biomedical Engineering, and
| | - Michael J. Welsh
- Department of Internal Medicine
- Pappajohn Biomedical Institute
- Department of Molecular Physiology and Biophysics, and
- Department of Neurology, Roy J. and Lucille A. Carver College of Medicine
- Howard Hughes Medical Institute, University of Iowa, Iowa City, Iowa
| | | | - Joseph Zabner
- Department of Internal Medicine
- Pappajohn Biomedical Institute
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14
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Choong CJ, Mochizuki H. Neuropathology of α-synuclein in Parkinson's disease. Neuropathology 2022; 42:93-103. [PMID: 35362115 DOI: 10.1111/neup.12812] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/24/2022] [Accepted: 02/28/2022] [Indexed: 01/21/2023]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder characterized by progressive movement disability accompanied by non-motor symptoms. The neuropathology hallmark of PD is the loss of dopaminergic neurons predominantly in the substantia nigra pars compacta and the presence of intracellular inclusions termed Lewy bodies (LBs), which are mainly composed of α-synuclein (αSyn). Detailed staging based on the distribution and progression pattern of αSyn pathology in the postmortem brains of PD patients revealed correlation with the clinical phenotypes but not invariably. Cumulative evidence from cell and animal studies has implied that αSyn propagation contributes to the anatomical spread of αSyn pathology in the brain. Here, we recount the studies over the past two centuries on the anatomopathological foundations of PD documented. We also review studies on the structural analysis of αSyn and LBs, Braak staging of αSyn pathology, the cell-to-cell propagation of αSyn as well as αSyn fibril polymorphisms, which underlie the phenotypic differences in synucleinopathies.
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Affiliation(s)
- Chi-Jing Choong
- Department of Neurology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hideki Mochizuki
- Department of Neurology, Osaka University Graduate School of Medicine, Osaka, Japan
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15
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CRACking the Molecular Regulatory Mechanism of SOCE during Platelet Activation in Thrombo-Occlusive Diseases. Cells 2022; 11:cells11040619. [PMID: 35203269 PMCID: PMC8870035 DOI: 10.3390/cells11040619] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/31/2022] [Accepted: 02/09/2022] [Indexed: 11/16/2022] Open
Abstract
Thrombo-occlusive diseases such as myocardial infarction, ischemic stroke and deep vein thrombosis with subsequent pulmonary embolism still represent a major health burden worldwide. Besides the cells of the vasculature or other hematopoietic cells, platelets are primarily responsible for the development and progression of an occluding thrombus. The activation and function of platelets crucially depend on free cytosolic calcium (Ca2+) as second messenger, which modulates platelet secretion, aggregation and thrombus formation. Ca2+ is elevated upon platelet activation by release of Ca2+ from intracellular stores thus triggering of the subsequent store-operated Ca2+ entry (SOCE), which is facilitated by Ca2+ release-activated channels (CRACs). In general, CRACs are assembled by the pore-forming unit Orai in the plasma membrane and the Ca2+-sensing stromal interaction molecule (STIM) in the endoplasmic reticulum after the depletion of internal Ca2+ stores. In the last few years, there is a growing body of the literature demonstrating the importance of STIM and Orai-mediated mechanism in thrombo-occlusive disorders. Thus, this review provides an overview of the recent understanding of STIM and Orai signaling in platelet function and its implication in the development and progression of ischemic thrombo-occlusive disorders. Moreover, potential pharmacological implications of STIM and Orai signaling in platelets are anticipated and discussed in the end.
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16
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Genome-wide bidirectional CRISPR screens identify mucins as host factors modulating SARS-CoV-2 infection. Nat Genet 2022; 54:1078-1089. [PMID: 35879412 PMCID: PMC9355872 DOI: 10.1038/s41588-022-01131-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/10/2022] [Indexed: 01/08/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes a range of symptoms in infected individuals, from mild respiratory illness to acute respiratory distress syndrome. A systematic understanding of host factors influencing viral infection is critical to elucidate SARS-CoV-2-host interactions and the progression of Coronavirus disease 2019 (COVID-19). Here, we conducted genome-wide CRISPR knockout and activation screens in human lung epithelial cells with endogenous expression of the SARS-CoV-2 entry factors ACE2 and TMPRSS2. We uncovered proviral and antiviral factors across highly interconnected host pathways, including clathrin transport, inflammatory signaling, cell-cycle regulation, and transcriptional and epigenetic regulation. We further identified mucins, a family of high molecular weight glycoproteins, as a prominent viral restriction network that inhibits SARS-CoV-2 infection in vitro and in murine models. These mucins also inhibit infection of diverse respiratory viruses. This functional landscape of SARS-CoV-2 host factors provides a physiologically relevant starting point for new host-directed therapeutics and highlights airway mucins as a host defense mechanism.
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17
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Dauer Née Joppe K, Tatenhorst L, Caldi Gomes L, Zhang S, Parvaz M, Carboni E, Roser AE, El DeBakey H, Bähr M, Vogel-Mikuš K, Wang Ip C, Becker S, Zweckstetter M, Lingor P. Brain iron enrichment attenuates α-synuclein spreading after injection of preformed fibrils. J Neurochem 2021; 159:554-573. [PMID: 34176164 DOI: 10.1111/jnc.15461] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 12/12/2022]
Abstract
Regional iron accumulation and α-synuclein (α-syn) spreading pathology within the central nervous system are common pathological findings in Parkinson's disease (PD). Whereas iron is known to bind to α-syn, facilitating its aggregation and regulating α-syn expression, it remains unclear if and how iron also modulates α-syn spreading. To elucidate the influence of iron on the propagation of α-syn pathology, we investigated α-syn spreading after stereotactic injection of α-syn preformed fibrils (PFFs) into the striatum of mouse brains after neonatal brain iron enrichment. C57Bl/6J mouse pups received oral gavage with 60, 120, or 240 mg/kg carbonyl iron or vehicle between postnatal days 10 and 17. At 12 weeks of age, intrastriatal injections of 5-µg PFFs were performed to induce seeding of α-syn aggregates. At 90 days post-injection, PFFs-injected mice displayed long-term memory deficits, without affection of motor behavior. Interestingly, quantification of α-syn phosphorylated at S129 showed reduced α-syn pathology and attenuated spreading to connectome-specific brain regions after brain iron enrichment. Furthermore, PFFs injection caused intrastriatal microglia accumulation, which was alleviated by iron in a dose-dependent way. In primary cortical neurons in a microfluidic chamber model in vitro, iron application did not alter trans-synaptic α-syn propagation, possibly indicating an involvement of non-neuronal cells in this process. Our study suggests that α-syn PFFs may induce cognitive deficits in mice independent of iron. However, a redistribution of α-syn aggregate pathology and reduction of striatal microglia accumulation in the mouse brain may be mediated via iron-induced alterations of the brain connectome.
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Affiliation(s)
- Karina Dauer Née Joppe
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
| | - Lars Tatenhorst
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
| | - Lucas Caldi Gomes
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
- Department of Neurology, School of Medicine, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Shuyu Zhang
- Department of Neurology, School of Medicine, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Mojan Parvaz
- Department of Neurology, School of Medicine, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Eleonora Carboni
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
| | - Anna-Elisa Roser
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
| | - Hazem El DeBakey
- Department of Neurology, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Mathias Bähr
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Goettingen, Goettingen, Germany
| | - Katarina Vogel-Mikuš
- Biotechnical faculty, University of Ljubljana, Ljubljana, Slovenia
- Jozef Stefan Institute, Ljubljana, Slovenia
| | - Chi Wang Ip
- Department of Neurology, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Stefan Becker
- Department of NMR Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
| | - Markus Zweckstetter
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Goettingen, Germany
- Research group Mass Spectrometry, Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
| | - Paul Lingor
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
- Department of Neurology, School of Medicine, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
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18
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Smoking shifts human small airway epithelium club cells toward a lesser differentiated population. NPJ Genom Med 2021; 6:73. [PMID: 34497273 PMCID: PMC8426481 DOI: 10.1038/s41525-021-00237-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 08/03/2021] [Indexed: 02/07/2023] Open
Abstract
The club cell, a small airway epithelial (SAE) cell, plays a central role in human lung host defense. We hypothesized that subpopulations of club cells with distinct functions may exist. The SAE of healthy nonsmokers and healthy cigarette smokers were evaluated by single-cell RNA sequencing, and unsupervised clustering revealed subpopulations of SCGCB1A1+KRT5loMUC5AC- club cells. Club cell heterogeneity was supported by evaluations of SAE tissue sections, brushed SAE cells, and in vitro air-liquid interface cultures. Three subpopulations included: (1) progenitor; (2) proliferating; and (3) effector club cells. The progenitor club cell population expressed high levels of mitochondrial, ribosomal proteins, and KRT5 relative to other club cell populations and included a differentiation branch point leading to mucous cell production. The small proliferating population expressed high levels of cyclins and proliferation markers. The effector club cell cluster expressed genes related to host defense, xenobiotic metabolism, and barrier functions associated with club cell function. Comparison of smokers vs. nonsmokers demonstrated that smoking limited the extent of differentiation of all three subclusters and altered SAM pointed domain-containing Ets transcription factor (SPDEF)-regulated transcription in the effector cell population leading to a change in the location of the branch point for mucous cell production, a potential explanation for the concomitant reduction in effector club cells and increase in mucous cells in smokers. These observations provide insights into both the makeup of human SAE club cell subpopulations and the smoking-induced changes in club cell biology.
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19
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Krzystek TJ, Banerjee R, Thurston L, Huang J, Swinter K, Rahman SN, Falzone TL, Gunawardena S. Differential mitochondrial roles for α-synuclein in DRP1-dependent fission and PINK1/Parkin-mediated oxidation. Cell Death Dis 2021; 12:796. [PMID: 34404758 PMCID: PMC8371151 DOI: 10.1038/s41419-021-04046-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 01/18/2023]
Abstract
Mitochondria are highly dynamic organelles with strict quality control processes that maintain cellular homeostasis. Within axons, coordinated cycles of fission-fusion mediated by dynamin related GTPase protein (DRP1) and mitofusins (MFN), together with regulated motility of healthy mitochondria anterogradely and damaged/oxidized mitochondria retrogradely, control mitochondrial shape, distribution and size. Disruption of this tight regulation has been linked to aberrant oxidative stress and mitochondrial dysfunction causing mitochondrial disease and neurodegeneration. Although pharmacological induction of Parkinson's disease (PD) in humans/animals with toxins or in mice overexpressing α-synuclein (α-syn) exhibited mitochondrial dysfunction and oxidative stress, mice lacking α-syn showed resistance to mitochondrial toxins; yet, how α-syn influences mitochondrial dynamics and turnover is unclear. Here, we isolate the mechanistic role of α-syn in mitochondrial homeostasis in vivo in a humanized Drosophila model of Parkinson's disease (PD). We show that excess α-syn causes fragmented mitochondria, which persists with either truncation of the C-terminus (α-syn1-120) or deletion of the NAC region (α-synΔNAC). Using in vivo oxidation reporters Mito-roGFP2-ORP1/GRX1 and MitoTimer, we found that α-syn-mediated fragments were oxidized/damaged, but α-syn1-120-induced fragments were healthy, suggesting that the C-terminus is required for oxidation. α-syn-mediated oxidized fragments showed biased retrograde motility, but α-syn1-120-mediated healthy fragments did not, demonstrating that the C-terminus likely mediates the retrograde motility of oxidized mitochondria. Depletion/inhibition or excess DRP1-rescued α-syn-mediated fragmentation, oxidation, and the biased retrograde motility, indicating that DRP1-mediated fragmentation is likely upstream of oxidation and motility changes. Further, excess PINK/Parkin, two PD-associated proteins that function to coordinate mitochondrial turnover via induction of selective mitophagy, rescued α-syn-mediated membrane depolarization, oxidation and cell death in a C-terminus-dependent manner, suggesting a functional interaction between α-syn and PINK/Parkin. Taken together, our findings identify distinct roles for α-syn in mitochondrial homeostasis, highlighting a previously unknown pathogenic pathway for the initiation of PD.
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Affiliation(s)
- Thomas J Krzystek
- Department of Biological Sciences, The State University of New York at Buffalo, Buffalo, NY, 14260, USA
| | - Rupkatha Banerjee
- Department of Biological Sciences, The State University of New York at Buffalo, Buffalo, NY, 14260, USA
| | - Layne Thurston
- Department of Biological Sciences, The State University of New York at Buffalo, Buffalo, NY, 14260, USA
| | - JianQiao Huang
- Department of Biological Sciences, The State University of New York at Buffalo, Buffalo, NY, 14260, USA
| | - Kelsey Swinter
- Department of Biological Sciences, The State University of New York at Buffalo, Buffalo, NY, 14260, USA
| | - Saad Navid Rahman
- Department of Biological Sciences, The State University of New York at Buffalo, Buffalo, NY, 14260, USA
| | - Tomas L Falzone
- Instituto de Biología Celular y Neurociencias IBCN (CONICET-UBA), Universidad De Buenos Aires, Buenos Aires, Argentina.,Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA), Partner Institute of the Max Planck Society, Buenos Aires, Argentina
| | - Shermali Gunawardena
- Department of Biological Sciences, The State University of New York at Buffalo, Buffalo, NY, 14260, USA.
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20
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Transcriptional analysis of cystic fibrosis airways at single-cell resolution reveals altered epithelial cell states and composition. Nat Med 2021; 27:806-814. [PMID: 33958799 PMCID: PMC9009537 DOI: 10.1038/s41591-021-01332-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 03/24/2021] [Indexed: 02/03/2023]
Abstract
Cystic fibrosis (CF) is a lethal autosomal recessive disorder that afflicts more than 70,000 people. People with CF experience multi-organ dysfunction resulting from aberrant electrolyte transport across polarized epithelia due to mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. CF-related lung disease is by far the most important determinant of morbidity and mortality. Here we report results from a multi-institute consortium in which single-cell transcriptomics were applied to define disease-related changes by comparing the proximal airway of CF donors (n = 19) undergoing transplantation for end-stage lung disease with that of previously healthy lung donors (n = 19). Disease-dependent differences observed include an overabundance of epithelial cells transitioning to specialized ciliated and secretory cell subsets coupled with an unexpected decrease in cycling basal cells. Our study yields a molecular atlas of the proximal airway epithelium that will provide insights for the development of new targeted therapies for CF airway disease.
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21
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Zhou K, Zhu X, Ma K, Liu J, Nürnberg B, Gawaz M, Lang F. Effect of MgCl 2 and GdCl 3 on ORAI1 Expression and Store-Operated Ca 2+ Entry in Megakaryocytes. Int J Mol Sci 2021; 22:ijms22073292. [PMID: 33804889 PMCID: PMC8036595 DOI: 10.3390/ijms22073292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/14/2021] [Accepted: 03/18/2021] [Indexed: 01/07/2023] Open
Abstract
In chronic kidney disease, hyperphosphatemia upregulates the Ca2+ channel ORAI and its activating Ca2+ sensor STIM in megakaryocytes and platelets. ORAI1 and STIM1 accomplish store-operated Ca2+ entry (SOCE) and play a key role in platelet activation. Signaling linking phosphate to upregulation of ORAI1 and STIM1 includes transcription factor NFAT5 and serum and glucocorticoid-inducible kinase SGK1. In vascular smooth muscle cells, the effect of hyperphosphatemia on ORAI1/STIM1 expression and SOCE is suppressed by Mg2+ and the calcium-sensing receptor (CaSR) agonist Gd3+. The present study explored whether sustained exposure to Mg2+ or Gd3+ interferes with the phosphate-induced upregulation of NFAT5, SGK1, ORAI1,2,3, STIM1,2 and SOCE in megakaryocytes. To this end, human megakaryocytic Meg-01 cells were treated with 2 mM ß-glycerophosphate for 24 h in the absence and presence of either 1.5 mM MgCl2 or 50 µM GdCl3. Transcript levels were estimated utilizing q-RT-PCR, protein abundance by Western blotting, cytosolic Ca2+ concentration ([Ca2+]i) by Fura-2 fluorescence and SOCE from the increase in [Ca2+]i following re-addition of extracellular Ca2+ after store depletion with thapsigargin (1 µM). As a result, Mg2+ and Gd3+ upregulated CaSR and blunted or virtually abolished the phosphate-induced upregulation of NFAT5, SGK1, ORAI1,2,3, STIM1,2 and SOCE in megakaryocytes. In conclusion, Mg2+ and the CaSR agonist Gd3+ interfere with phosphate-induced dysregulation of [Ca2+]i in megakaryocytes.
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Affiliation(s)
- Kuo Zhou
- Department of Pharmacology, Experimental Therapy & Toxicology, Eberhard Karls University, 72074 Tübingen, Germany; (K.Z.); (X.Z.); (K.M.); (B.N.)
| | - Xuexue Zhu
- Department of Pharmacology, Experimental Therapy & Toxicology, Eberhard Karls University, 72074 Tübingen, Germany; (K.Z.); (X.Z.); (K.M.); (B.N.)
| | - Ke Ma
- Department of Pharmacology, Experimental Therapy & Toxicology, Eberhard Karls University, 72074 Tübingen, Germany; (K.Z.); (X.Z.); (K.M.); (B.N.)
| | - Jibin Liu
- Institute of Preventive Veterinary Medicine, Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;
| | - Bernd Nürnberg
- Department of Pharmacology, Experimental Therapy & Toxicology, Eberhard Karls University, 72074 Tübingen, Germany; (K.Z.); (X.Z.); (K.M.); (B.N.)
| | - Meinrad Gawaz
- Department of Cardiology and Angiology, University Hospital Tübingen, Eberhard Karls University Tübingen, 72076 Tübingen, Germany;
| | - Florian Lang
- Department of Vegetative and Clinical Physiology, Eberhard Karls University, 72074 Tübingen, Germany
- Correspondence: ; Tel.: +49-707-129-72194
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22
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Hadi F, Akrami H, Totonchi M, Barzegar A, Nabavi SM, Shahpasand K. α-synuclein abnormalities trigger focal tau pathology, spreading to various brain areas in Parkinson disease. J Neurochem 2021; 157:727-751. [PMID: 33264426 DOI: 10.1111/jnc.15257] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 07/28/2020] [Accepted: 11/30/2020] [Indexed: 12/21/2022]
Abstract
Parkinson disease (PD) is the second most common neurodegenerative disorder, whose prevalence is 2~3% in the population over 65. α-Synuclein aggregation is the major pathological hallmark of PD. However, recent studies have demonstrated enhancing evidence of tau pathology in PD. Despite extensive considerations, thus far, the actual spreading mechanism of neurodegeneration has remained elusive in a PD brain. This study aimed to further investigate the development of α-synuclein and tau pathology. We employed various PD models, including cultured neurons treated with either 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) or with recombinant α-synuclein. Also, we studied dopaminergic neurons of cytokine Interferon-β knock-out. Moreover, we examined rats treated with 6-hydroxydopamine, Rhesus monkeys administrated with MPTP neurotoxin, and finally, human post-mortem brains. We found the α-synuclein phosphorylation triggers tau pathogenicity. Also, we observed more widespread phosphorylated tau than α-synuclein with prion-like nature in various brain areas. We optionally removed P-tau or P-α-synuclein from cytokine interferon-β knock out with respective monoclonal antibodies. We found that tau immunotherapy suppressed neurodegeneration more than α-synuclein elimination. Our findings indicate that the pathogenic tau could be one of the leading causes of comprehensive neurodegeneration triggered by PD. Thus, we can propose an efficient therapeutic target to fight the devastating disorder.
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Affiliation(s)
- Fatemeh Hadi
- Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran
| | - Hassan Akrami
- Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran
| | - Mehdi Totonchi
- Department of Brain and Cognitive Sciences, Cell Science Research Center, Royan Institute, ACECR, Tehran, Iran
| | | | - Seyed Massood Nabavi
- Department of Brain and Cognitive Sciences, Cell Science Research Center, Royan Institute, ACECR, Tehran, Iran
| | - Koorosh Shahpasand
- Department of Brain and Cognitive Sciences, Cell Science Research Center, Royan Institute, ACECR, Tehran, Iran
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23
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Reverse engineering Lewy bodies: how far have we come and how far can we go? Nat Rev Neurosci 2021; 22:111-131. [PMID: 33432241 DOI: 10.1038/s41583-020-00416-6] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2020] [Indexed: 12/19/2022]
Abstract
Lewy bodies (LBs) are α-synuclein (α-syn)-rich intracellular inclusions that are an important pathological hallmark of Parkinson disease and several other neurodegenerative diseases. Increasing evidence suggests that the aggregation of α-syn has a central role in LB formation and is one of the key processes that drive neurodegeneration and pathology progression in Parkinson disease. However, little is known about the mechanisms underlying the formation of LBs, their biochemical composition and ultrastructural properties, how they evolve and spread with disease progression, and their role in neurodegeneration. In this Review, we discuss current knowledge of α-syn pathology, including the biochemical, structural and morphological features of LBs observed in different brain regions. We also review the most used cellular and animal models of α-syn aggregation and pathology spreading in relation to the extent to which they reproduce key features of authentic LBs. Finally, we provide important insights into molecular and cellular determinants of LB formation and spreading, and highlight the critical need for more detailed and systematic characterization of α-syn pathology, at both the biochemical and structural levels. This would advance our understanding of Parkinson disease and other neurodegenerative diseases and allow the development of more-reliable disease models and novel effective therapeutic strategies.
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24
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Cellular and functional heterogeneity of the airway epithelium. Mucosal Immunol 2021; 14:978-990. [PMID: 33608655 PMCID: PMC7893625 DOI: 10.1038/s41385-020-00370-7] [Citation(s) in RCA: 115] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/15/2020] [Accepted: 12/07/2020] [Indexed: 02/07/2023]
Abstract
The airway epithelium protects us from environmental insults, which we encounter with every breath. Not only does it passively filter large particles, it also senses potential danger and alerts other cells, including immune and nervous cells. Together, these tissues orchestrate the most appropriate response, balancing the need to eliminate the danger with the risk of damage to the host. Each cell subset within the airway epithelium plays its part, and when impaired, may contribute to the development of respiratory disease. Here we highlight recent advances regarding the cellular and functional heterogeneity along the airway epithelium and discuss how we can use this knowledge to design more effective, targeted therapeutics.
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25
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Montgomery MT, Sajuthi SP, Cho SH, Everman JL, Rios CL, Goldfarbmuren KC, Jackson ND, Saef B, Cromie M, Eng C, Medina V, Elhawary JR, Oh SS, Rodriguez-Santana J, Vladar EK, Burchard EG, Seibold MA. Genome-Wide Analysis Reveals Mucociliary Remodeling of the Nasal Airway Epithelium Induced by Urban PM 2.5. Am J Respir Cell Mol Biol 2020; 63:172-184. [PMID: 32275839 DOI: 10.1165/rcmb.2019-0454oc] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Air pollution particulate matter <2.5 μm (PM2.5) exposure is associated with poor respiratory outcomes. Mechanisms underlying PM2.5-induced lung pathobiology are poorly understood but likely involve cellular and molecular changes to the airway epithelium. We extracted and chemically characterized the organic and water-soluble components of air pollution PM2.5 samples, then determined the whole transcriptome response of human nasal mucociliary airway epithelial cultures to a dose series of PM2.5 extracts. We found that PM2.5 organic extract (OE), but not water-soluble extract, elicited a potent, dose-dependent transcriptomic response from the mucociliary epithelium. Exposure to a moderate OE dose modified the expression of 424 genes, including activation of aryl hydrocarbon receptor signaling and an IL-1 inflammatory program. We generated an OE-response gene network defined by eight functional enrichment groups, which exhibited high connectivity through CYP1A1, IL1A, and IL1B. This OE exposure also robustly activated a mucus secretory expression program (>100 genes), which included transcriptional drivers of mucus metaplasia (SPDEF and FOXA3). Exposure to a higher OE dose modified the expression of 1,240 genes and further exacerbated expression responses observed at the moderate dose, including the mucus secretory program. Moreover, the higher OE dose significantly increased the MUC5AC/MUC5B gel-forming mucin expression ratio and strongly downregulated ciliated cell expression programs, including key ciliating cell transcription factors (e.g., FOXJ1 and MCIDAS). Chronic OE stimulation induced mucus metaplasia-like remodeling characterized by increases in MUC5AC+ secretory cells and MUC5AC mucus secretions. This epithelial remodeling may underlie poor respiratory outcomes associated with high PM2.5 exposure.
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Affiliation(s)
| | | | - Seung-Hyun Cho
- RTI International, Research Triangle Park, North Carolina
| | | | | | | | | | | | | | | | - Vivian Medina
- Centro de Neumología Pediátrica, San Juan, Puerto Rico; and
| | | | | | | | - Eszter K Vladar
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine and.,Department of Cell and Developmental Biology, University of Colorado School of Medicine, Aurora, Colorado
| | - Esteban G Burchard
- Department of Medicine and.,Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, California
| | - Max A Seibold
- Center for Genes, Environment, and Health, and.,Department of Pediatrics, National Jewish Health, Denver, Colorado.,Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine and
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26
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Sajuthi SP, DeFord P, Li Y, Jackson ND, Montgomery MT, Everman JL, Rios CL, Pruesse E, Nolin JD, Plender EG, Wechsler ME, Mak ACY, Eng C, Salazar S, Medina V, Wohlford EM, Huntsman S, Nickerson DA, Germer S, Zody MC, Abecasis G, Kang HM, Rice KM, Kumar R, Oh S, Rodriguez-Santana J, Burchard EG, Seibold MA. Type 2 and interferon inflammation regulate SARS-CoV-2 entry factor expression in the airway epithelium. Nat Commun 2020; 11:5139. [PMID: 33046696 PMCID: PMC7550582 DOI: 10.1038/s41467-020-18781-2] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 09/08/2020] [Indexed: 11/08/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19) is caused by SARS-CoV-2, an emerging virus that utilizes host proteins ACE2 and TMPRSS2 as entry factors. Understanding the factors affecting the pattern and levels of expression of these genes is important for deeper understanding of SARS-CoV-2 tropism and pathogenesis. Here we explore the role of genetics and co-expression networks in regulating these genes in the airway, through the analysis of nasal airway transcriptome data from 695 children. We identify expression quantitative trait loci for both ACE2 and TMPRSS2, that vary in frequency across world populations. We find TMPRSS2 is part of a mucus secretory network, highly upregulated by type 2 (T2) inflammation through the action of interleukin-13, and that the interferon response to respiratory viruses highly upregulates ACE2 expression. IL-13 and virus infection mediated effects on ACE2 expression were also observed at the protein level in the airway epithelium. Finally, we define airway responses to common coronavirus infections in children, finding that these infections generate host responses similar to other viral species, including upregulation of IL6 and ACE2. Our results reveal possible mechanisms influencing SARS-CoV-2 infectivity and COVID-19 clinical outcomes.
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Grants
- R01 ES015794 NIEHS NIH HHS
- R01 HL120393 NHLBI NIH HHS
- HL128439 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- R01 HL141992 NHLBI NIH HHS
- UM1 HG008901 NHGRI NIH HHS
- R01 HL141845 NHLBI NIH HHS
- HL107202 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- HHSN268201800001C NHLBI NIH HHS
- U01 HG009080 NHGRI NIH HHS
- HL138626 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- R01 HL117626 NHLBI NIH HHS
- HL135156 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- HL132821 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- P01 HL107202 NHLBI NIH HHS
- K01 HL140218 NHLBI NIH HHS
- U01 HL120393 NHLBI NIH HHS
- HL117004 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- R01 HL135156 NHLBI NIH HHS
- T32 GM007546 NIGMS NIH HHS
- MD010443 U.S. Department of Health & Human Services | NIH | National Institute on Minority Health and Health Disparities (NIMHD)
- R01 HL128439 NHLBI NIH HHS
- R01 HL117004 NHLBI NIH HHS
- P60 MD006902 NIMHD NIH HHS
- HHSN268201600032C NHLBI NIH HHS
- U24 HG008956 NHGRI NIH HHS
- P01 HL132821 NHLBI NIH HHS
- R01 MD010443 NIMHD NIH HHS
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Affiliation(s)
- Satria P Sajuthi
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Peter DeFord
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Yingchun Li
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Nathan D Jackson
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Michael T Montgomery
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Jamie L Everman
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Cydney L Rios
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Elmar Pruesse
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - James D Nolin
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | - Elizabeth G Plender
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA
| | | | - Angel C Y Mak
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Celeste Eng
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Sandra Salazar
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Vivian Medina
- Centro de Neumología Pediátrica, San Juan, Puerto Rico
| | - Eric M Wohlford
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
- Division of Pediatric Allergy and Immunology, University of California San Francisco, San Francisco, CA, USA
| | - Scott Huntsman
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Deborah A Nickerson
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
- Northwest Genomics Center, Seattle, WA, USA
- Brotman Baty Institute, Seattle, WA, USA
| | | | | | - Gonçalo Abecasis
- Center for Statistical Genetics, University of Michigan, Ann Arbor, MI, USA
| | - Hyun Min Kang
- Center for Statistical Genetics, University of Michigan, Ann Arbor, MI, USA
| | - Kenneth M Rice
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Rajesh Kumar
- Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University, Chicago, IL, USA
| | - Sam Oh
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | | | - Esteban G Burchard
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA
| | - Max A Seibold
- Center for Genes, Environment, and Health, National Jewish Health, Denver, CO, USA.
- Department of Pediatrics, National Jewish Health, Denver, CO, USA.
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado-AMC, Aurora, CO, USA.
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27
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NFAT5, which protects against hypertonicity, is activated by that stress via structuring of its intrinsically disordered domain. Proc Natl Acad Sci U S A 2020; 117:20292-20297. [PMID: 32747529 DOI: 10.1073/pnas.1911680117] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Nuclear Factor of Activated T cells 5 (NFAT5) is a transcription factor (TF) that mediates protection from adverse effects of hypertonicity by increasing transcription of genes, including those that lead to cellular accumulation of protective organic osmolytes. NFAT5 has three intrinsically ordered (ID) activation domains (ADs). Using the NFAT5 N-terminal domain (NTD), which contains AD1, as a model, we demonstrate by biophysical methods that the NTD senses osmolytes and hypertonicity, resulting in stabilization of its ID regions. In the presence of sufficient NaCl or osmolytes, trehalose and sorbitol, the NFAT5 NTD undergoes a disorder-to-order shift, adopting higher average secondary and tertiary structure. Thus, NFAT5 is activated by the stress that it protects against. In its salt and/or osmolyte-induced more ordered conformation, the NTD interacts with several proteins, including HMGI-C, which is known to protect against apoptosis. These findings raise the possibility that the increased intracellular ionic strength and elevated osmolytes caused by hypertonicity activate and stabilize NFAT5.
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28
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Exendin-4 restores airway mucus homeostasis through the GLP1R-PKA-PPARγ-FOXA2-phosphatase signaling. Mucosal Immunol 2020; 13:637-651. [PMID: 32034274 PMCID: PMC7664156 DOI: 10.1038/s41385-020-0262-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 01/03/2020] [Accepted: 01/21/2020] [Indexed: 02/04/2023]
Abstract
Goblet cell hyperplasia and metaplasia and excessive mucus are prominent pathologies of chronic airway diseases such as chronic obstructive pulmonary disease (COPD), cystic fibrosis (CF), and chronic bronchitis. Chronic infection by respiratory pathogens, including Pseudomonas aeruginosa, exacerbates cyclical proinflammatory responses and mucus hypersecretion. P. aeruginosa and its virulence factor pyocyanin contribute to these pathologies by inhibiting FOXA2, a key transcriptional regulator of mucus homeostasis, through activation of antagonistic signaling pathways EGFR-AKT/ERK1/2 and IL-4/IL-13-STAT6-SPDEF. However, FOXA2-targeted therapy has not been previously explored. Here, we examined the feasibility of repurposing the incretin mimetic Exendin-4 to restore FOXA2-mediated airway mucus homeostasis. We have found that Exendin-4 restored FOXA2 expression, attenuated mucin production in COPD and CF-diseased airway cells, and reduced mucin and P. aeruginosa burden in mouse lungs. Mechanistically, Exendin-4 activated the GLP1R-PKA-PPAR-γ-dependent phosphatases PTEN and PTP1B, which inhibited key kinases within both EGFR and STAT6 signaling cascades. Our results may lead to the repurposing of Exendin-4 and other incretin mimetics to restore FOXA2 function and ultimately regulate excessive mucus in diseased airways.
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Fayyad M, Erskine D, Majbour NK, Vaikath NN, Ghanem SS, Sudhakaran IP, Abdesselem H, Lamprokostopoulou A, Vekrellis K, Morris CM, Attems J, El-Agnaf OMA. Investigating the presence of doubly phosphorylated α-synuclein at tyrosine 125 and serine 129 in idiopathic Lewy body diseases. Brain Pathol 2020; 30:831-843. [PMID: 32324926 PMCID: PMC7384146 DOI: 10.1111/bpa.12845] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 04/08/2020] [Accepted: 04/16/2020] [Indexed: 01/11/2023] Open
Abstract
Aggregation of the protein α‐synuclein (α‐syn) into insoluble intracellular assemblies termed Lewy bodies (LBs) is thought to be a critical pathogenic event in LB diseases such as Parkinson’s disease and dementia with LBs. In LB diseases, the majority of α‐syn is phosphorylated at serine 129 (pS129), suggesting that this is an important disease‐related post‐translational modification (PTM). However, PTMs do not typically occur in isolation and phosphorylation at the proximal tyrosine 125 (pY125) residue has received considerable attention and has been inconsistently reported to be present in LBs. Furthermore, the proximity of Y125 to S129 means that some pS129 antibodies may have epitopes that include Y125, in which case phosphorylation of Y125 will impede recognition of α‐syn. This would potentially lead to underestimating LB pathology burdens if pY125 occurs alongside pS129. To address the apparent controversy in the literature regarding the detection of pY125, we investigated its presence in the LB pathology. We generated pS129 antibodies whose epitope includes or does not include Y125 and compared the extent of α‐syn pathology recognized in mouse models of α‐synucleinopathies, human brain tissue lysates and fixed post‐mortem brain tissues. Our study demonstrated no difference in α‐syn pathology recognized between pS129 antibodies, irrespective of whether Y125 was part of the epitope or not. Furthermore, evaluation with pY125 antibodies whose epitope does not include S129 demonstrated no labeling of LB pathology. This study reconciles disparate results in the literature and demonstrates pY125 is not a key component of LB pathology in murine models or human tissues in idiopathic LB diseases.
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Affiliation(s)
- Muneera Fayyad
- College of Health and Life Sciences, Hamad Bin Khalifa University (HBKU), Education City, Qatar Foundation, Doha, Qatar
| | - Daniel Erskine
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Nour K Majbour
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
| | - Nishant N Vaikath
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
| | - Simona S Ghanem
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
| | - Indulekha P Sudhakaran
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
| | - Houari Abdesselem
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
| | | | - Kostas Vekrellis
- Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Christopher M Morris
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Johannes Attems
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Omar M A El-Agnaf
- College of Health and Life Sciences, Hamad Bin Khalifa University (HBKU), Education City, Qatar Foundation, Doha, Qatar.,Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha, Qatar
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30
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Feldman MB, Wood M, Lapey A, Mou H. SMAD Signaling Restricts Mucous Cell Differentiation in Human Airway Epithelium. Am J Respir Cell Mol Biol 2020; 61:322-331. [PMID: 30848657 DOI: 10.1165/rcmb.2018-0326oc] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Mucin-secreting goblet cell metaplasia and hyperplasia (GCMH) is a common pathological phenotype in many human respiratory diseases, including asthma, chronic obstructive pulmonary disease, cystic fibrosis, primary ciliary dyskinesia, and infections. A better understanding of how goblet cell quantities or proportions in the airway epithelium are regulated may provide novel therapeutic targets to mitigate GCMH in these devastating diseases. We identify canonical SMAD signaling as the principal pathway restricting goblet cell differentiation in human airway epithelium. Differentiated goblet cells express low levels of phosphorylated SMAD. Accordingly, inhibition of SMAD signaling markedly amplifies GCMH induced by mucous mediators. In contrast, SMAD signaling activation impedes goblet cell generation and accelerates the resolution of preexisting GCMH. SMAD signaling inhibition can override the suppressive effects imposed by a GABAergic receptor inhibitor, suggesting the GABAergic pathway likely operates through inhibition of SMAD signaling in regulating mucous differentiation. Collectively, our data demonstrate that SMAD signaling plays a determining role in mucous cell differentiation, and thus raise the possibility that dysregulation of this pathway contributes to respiratory pathophysiology during airway inflammation and pulmonary diseases. In addition, our study also highlights the potential for SMAD modulation as a therapeutic target in mitigating GCMH.
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Affiliation(s)
- Michael B Feldman
- Division of Pulmonary and Critical Care Medicine and.,Harvard Medical School, Boston, Massachusetts
| | - Michael Wood
- the Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Allen Lapey
- Division of Pediatric Pulmonary Medicine, Massachusetts General Hospital for Children, Boston, Massachusetts; and
| | - Hongmei Mou
- the Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, Massachusetts.,Division of Pediatric Pulmonary Medicine, Massachusetts General Hospital for Children, Boston, Massachusetts; and.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
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31
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Jobin K, Stumpf NE, Schwab S, Eichler M, Neubert P, Rauh M, Adamowski M, Babyak O, Hinze D, Sivalingam S, Weisheit C, Hochheiser K, Schmidt SV, Meissner M, Garbi N, Abdullah Z, Wenzel U, Hölzel M, Jantsch J, Kurts C. A high-salt diet compromises antibacterial neutrophil responses through hormonal perturbation. Sci Transl Med 2020; 12:12/536/eaay3850. [DOI: 10.1126/scitranslmed.aay3850] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 02/12/2020] [Indexed: 12/11/2022]
Abstract
The Western diet is rich in salt, which poses various health risks. A high-salt diet (HSD) can stimulate immunity through the nuclear factor of activated T cells 5 (Nfat5)–signaling pathway, especially in the skin, where sodium is stored. The kidney medulla also accumulates sodium to build an osmotic gradient for water conservation. Here, we studied the effect of an HSD on the immune defense against uropathogenic E. coli–induced pyelonephritis, the most common kidney infection. Unexpectedly, pyelonephritis was aggravated in mice on an HSD by two mechanisms. First, on an HSD, sodium must be excreted; therefore, the kidney used urea instead to build the osmotic gradient. However, in contrast to sodium, urea suppressed the antibacterial functionality of neutrophils, the principal immune effectors against pyelonephritis. Second, the body excretes sodium by lowering mineralocorticoid production via suppressing aldosterone synthase. This caused an accumulation of aldosterone precursors with glucocorticoid functionality, which abolished the diurnal adrenocorticotropic hormone–driven glucocorticoid rhythm and compromised neutrophil development and antibacterial functionality systemically. Consistently, under an HSD, systemic Listeria monocytogenes infection was also aggravated in a glucocorticoid-dependent manner. Glucocorticoids directly induced Nfat5 expression, but pharmacological normalization of renal Nfat5 expression failed to restore the antibacterial defense. Last, healthy humans consuming an HSD for 1 week showed hyperglucocorticoidism and impaired antibacterial neutrophil function. In summary, an HSD suppresses intrarenal neutrophils Nfat5-independently by altering the local microenvironment and systemically by glucocorticoid-mediated immunosuppression. These findings argue against high-salt consumption during bacterial infections.
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Affiliation(s)
- Katarzyna Jobin
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
- Institute for Systems Immunology, Julius Maximilian University of Würzburg, Würzburg, Germany
| | - Natascha E. Stumpf
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Sebastian Schwab
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
- Medizinische Klinik I, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Melanie Eichler
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Patrick Neubert
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
| | - Manfred Rauh
- Department of Pediatrics and Adolescent Medicine, University Hospital Erlangen, Loschgestraβe 15, 91054 Erlangen, Germany
| | - Marek Adamowski
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Olena Babyak
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Daniel Hinze
- Institute of Experimental Oncology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, Bonn, Germany
| | - Sugirthan Sivalingam
- Institute of Experimental Oncology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, Bonn, Germany
| | - Christina Weisheit
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Katharina Hochheiser
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Susanne V. Schmidt
- Institute of Innate Immunity, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Mirjam Meissner
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Natalio Garbi
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Zeinab Abdullah
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
| | - Ulrich Wenzel
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Michael Hölzel
- Institute of Experimental Oncology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, Bonn, Germany
| | - Jonathan Jantsch
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
| | - Christian Kurts
- Institute of Experimental Immunology, University Hospital of Bonn, Rheinische Friedrich Wilhelm University, 53127 Bonn, Germany
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, VIC 3010, Australia
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Koh KD, Siddiqui S, Cheng D, Bonser LR, Sun DI, Zlock LT, Finkbeiner WE, Woodruff PG, Erle DJ. Efficient RNP-directed Human Gene Targeting Reveals SPDEF Is Required for IL-13-induced Mucostasis. Am J Respir Cell Mol Biol 2020; 62:373-381. [PMID: 31596609 PMCID: PMC7055692 DOI: 10.1165/rcmb.2019-0266oc] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 10/09/2019] [Indexed: 01/31/2023] Open
Abstract
Primary human bronchial epithelial cell (HBEC) cultures are a useful model for studies of lung health and major airway diseases. However, mechanistic studies have been limited by our ability to selectively disrupt specific genes in these cells. Here we optimize methods for gene targeting in HBECs by direct delivery of single guide RNA (sgRNA) and rCas9 (recombinant Cas9) complexes by electroporation, without a requirement for plasmids, viruses, or antibiotic selection. Variations in the method of delivery, sgRNA and rCas9 concentrations, and sgRNA sequences all had effects on targeting efficiency, allowing for predictable control of the extent of gene targeting and for near-complete disruption of gene expression. To demonstrate the value of this system, we targeted SPDEF, which encodes a transcription factor previously shown to be essential for the differentiation of MUC5AC-producing goblet cells in mouse models of asthma. Targeting SPDEF led to proportional decreases in MUC5AC expression in HBECs stimulated with IL-13, a central mediator of allergic asthma. Near-complete targeting of SPDEF abolished IL-13-induced MUC5AC expression and goblet cell differentiation. In addition, targeting of SPDEF prevented IL-13-induced impairment of mucociliary clearance, which is likely to be an important contributor to airway obstruction, morbidity, and mortality in asthma. We conclude that direct delivery of sgRNA and rCas9 complexes allows for predictable and efficient gene targeting and enables mechanistic studies of disease-relevant pathways in primary HBECs.
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Affiliation(s)
- Kyung Duk Koh
- Lung Biology Center
- Cardiovascular Research Institute
| | - Sana Siddiqui
- Division of Pulmonary, Critical Care, Sleep, and Allergy, and
| | - Dan Cheng
- Lung Biology Center
- Cardiovascular Research Institute
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | | | - Dingyuan I. Sun
- Department of Pathology, University of California San Francisco, San Francisco, California; and
| | - Lorna T. Zlock
- Department of Pathology, University of California San Francisco, San Francisco, California; and
| | - Walter E. Finkbeiner
- Department of Pathology, University of California San Francisco, San Francisco, California; and
| | - Prescott G. Woodruff
- Cardiovascular Research Institute
- Division of Pulmonary, Critical Care, Sleep, and Allergy, and
| | - David J. Erle
- Lung Biology Center
- Cardiovascular Research Institute
- Division of Pulmonary, Critical Care, Sleep, and Allergy, and
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33
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Barrios J, Kho AT, Aven L, Mitchel JA, Park JA, Randell SH, Miller LA, Tantisira KG, Ai X. Pulmonary Neuroendocrine Cells Secrete γ-Aminobutyric Acid to Induce Goblet Cell Hyperplasia in Primate Models. Am J Respir Cell Mol Biol 2020; 60:687-694. [PMID: 30571139 DOI: 10.1165/rcmb.2018-0179oc] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Mucus overproduction is a major contributor to morbidity and mortality in asthma. Mucus overproduction is induced by orchestrated actions of multiple factors that include inflammatory cytokines and γ-aminobutyric acid (GABA). GABA is produced only by pulmonary neuroendocrine cells (PNECs) in the mouse lung. Recent studies in a neonatal mouse model of allergic inflammation have shown that PNECs play an essential role in mucus overproduction by GABA hypersecretion. Whether PNECs mediate dysregulated GABA signaling for mucus overproduction in asthma is unknown. In this study, we characterized the cellular source of GABA in the lungs of nonhuman primates and humans and assessed GABA secretion and signaling in primate disease models. We found that like in mice, PNECs were the major source of GABA in primate lungs. In addition, an infant nonhuman primate model of asthma exhibited an increase in GABA secretion. Furthermore, subjects with asthma had elevated levels of expression of a subset of GABA type α (GABAα) and type β (GABAβ) receptors in airway epithelium compared with those of healthy control subjects. Last, employing a normal human bronchial epithelial cell model of preinduced mucus overproduction, we showed pharmaceutical blockade of GABAα and GABAβ receptor signaling reversed the effect of IL-13 on MUC5AC gene expression and goblet cell proliferation. Together, our data demonstrate an evolutionarily conserved intraepithelial GABA signaling that, in concert with IL-13, plays an essential role in mucus overproduction. Our findings may offer new strategies to ameliorate mucus overproduction in patients with asthma by targeting PNEC secretion and GABA signaling.
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Affiliation(s)
- Juliana Barrios
- 1 The Pulmonary Center, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Alvin T Kho
- 2 The Channing Division of Network Medicine, and
| | - Linh Aven
- 1 The Pulmonary Center, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Jennifer A Mitchel
- 3 Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Jin-Ah Park
- 3 Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Scott H Randell
- 4 Department of Cell Biology and Physiology, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and
| | - Lisa A Miller
- 5 Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, California
| | | | - Xingbin Ai
- 6 Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
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Yang YH, Istomine R, Alvarez F, Al-Aubodah TA, Shi XQ, Takano T, Thornton AM, Shevach EM, Zhang J, Piccirillo CA. Salt Sensing by Serum/Glucocorticoid-Regulated Kinase 1 Promotes Th17-like Inflammatory Adaptation of Foxp3 + Regulatory T Cells. Cell Rep 2020; 30:1515-1529.e4. [PMID: 32023466 PMCID: PMC11056843 DOI: 10.1016/j.celrep.2020.01.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 11/21/2019] [Accepted: 12/31/2019] [Indexed: 12/24/2022] Open
Abstract
Regulatory T (Treg) cells integrate diverse environmental signals to modulate their function for optimal suppression. Translational regulation represents a favorable mechanism for Treg cell environmental sensing and adaptation. In this study, we carry out an unbiased screen of the Treg cell translatome and identify serum/glucocorticoid-regulated kinase 1 (SGK1), a known salt sensor in T cells, as being preferentially translated in activated Treg cells. We show that high salt (HS) drives thymic Treg cells to adopt a T helper type 17 (Th17)-like phenotype and enhances generation of Th17-like induced Treg cells in a SGK1-dependent manner, all the while maintaining suppressive function. Salt-mediated Th17-like differentiation of Treg cells was evident in mice fed with HS diet or injected with HS-preconditioned T cells. Overall, SGK1 enables Treg cells to adapt their function in response to environmental cues. By understanding these environmental-sensing mechanisms, we envision targeted approaches to fine-tune Treg cell function for better control of inflammation.
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Affiliation(s)
- Yujian H Yang
- Department of Microbiology and Immunology, McGill University, Montréal, QC H3A 2B4, Canada; Program in Infectious Diseases and Immunology in Global Health, Centre for Translational Biology, Research Institute of the McGill University Health Centre, Montréal, QC H4A 3J1, Canada; Centre of Excellence in Translational Immunology (CETI), Montréal, QC H4A 3J1, Canada; Division of Experimental Medicine, Department of Medicine, McGill University, Montréal, QC H4A 3J1, Canada
| | - Roman Istomine
- Department of Microbiology and Immunology, McGill University, Montréal, QC H3A 2B4, Canada; Program in Infectious Diseases and Immunology in Global Health, Centre for Translational Biology, Research Institute of the McGill University Health Centre, Montréal, QC H4A 3J1, Canada; Centre of Excellence in Translational Immunology (CETI), Montréal, QC H4A 3J1, Canada
| | - Fernando Alvarez
- Department of Microbiology and Immunology, McGill University, Montréal, QC H3A 2B4, Canada; Program in Infectious Diseases and Immunology in Global Health, Centre for Translational Biology, Research Institute of the McGill University Health Centre, Montréal, QC H4A 3J1, Canada; Centre of Excellence in Translational Immunology (CETI), Montréal, QC H4A 3J1, Canada
| | - Tho-Alfakar Al-Aubodah
- Department of Microbiology and Immunology, McGill University, Montréal, QC H3A 2B4, Canada; Program in Infectious Diseases and Immunology in Global Health, Centre for Translational Biology, Research Institute of the McGill University Health Centre, Montréal, QC H4A 3J1, Canada; Centre of Excellence in Translational Immunology (CETI), Montréal, QC H4A 3J1, Canada
| | - Xiang Qun Shi
- The Alan Edwards Centre for Research on Pain, Faculty of Dentistry, McGill University, Montreal, QC H3A 0G1, Canada
| | - Tomoko Takano
- Centre of Excellence in Translational Immunology (CETI), Montréal, QC H4A 3J1, Canada; Department of Medicine, McGill University, Montréal, QC H4A 3J1, Canada; Program of Metabolic Disorders and Complications, Research Institute of the McGill University Health Centre, Montréal, QC H4A 3J1, Canada
| | - Angela M Thornton
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ethan M Shevach
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ji Zhang
- Department of Microbiology and Immunology, McGill University, Montréal, QC H3A 2B4, Canada; The Alan Edwards Centre for Research on Pain, Faculty of Dentistry, McGill University, Montreal, QC H3A 0G1, Canada
| | - Ciriaco A Piccirillo
- Department of Microbiology and Immunology, McGill University, Montréal, QC H3A 2B4, Canada; Program in Infectious Diseases and Immunology in Global Health, Centre for Translational Biology, Research Institute of the McGill University Health Centre, Montréal, QC H4A 3J1, Canada; Centre of Excellence in Translational Immunology (CETI), Montréal, QC H4A 3J1, Canada; Division of Experimental Medicine, Department of Medicine, McGill University, Montréal, QC H4A 3J1, Canada.
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35
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Pelzl L, Sahu I, Ma K, Heinzmann D, Bhuyan AAM, Al-Maghout T, Sukkar B, Sharma Y, Marini I, Rigoni F, Artunc F, Cao H, Gutti R, Voelkl J, Pieske B, Gawaz M, Bakchoul T, Lang F. Beta-Glycerophosphate-Induced ORAI1 Expression and Store Operated Ca 2+ Entry in Megakaryocytes. Sci Rep 2020; 10:1728. [PMID: 32015442 PMCID: PMC6997179 DOI: 10.1038/s41598-020-58384-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 01/03/2020] [Indexed: 12/13/2022] Open
Abstract
Impairment of renal phosphate elimination in chronic kidney disease (CKD) leads to enhanced plasma and tissue phosphate concentration, which in turn up-regulates transcription factor NFAT5 and serum & glucocorticoid-inducible kinase SGK1. The kinase upregulates ORAI1, a Ca2+-channel accomplishing store-operated Ca2+-entry (SOCE). ORAI1 is stimulated following intracellular store depletion by Ca2+-sensors STIM1 and/or STIM2. In megakaryocytes and blood platelets SOCE and thus ORAI1 are powerful regulators of activity. The present study explored whether the phosphate-donor ß-glycerophosphate augments NFAT5, ORAI1,2,3 and/or STIM1,2 expressions and thus SOCE in megakaryocytes. Human megakaryocytic Meg01cells were exposed to 2 mM of phosphate-donor ß-glycerophosphate for 24 hours. Platelets were isolated from blood samples of patients with impaired kidney function or control volunteers. Transcript levels were estimated utilizing q-RT-PCR, cytosolic Ca2+-concentration ([Ca2+]i) by Fura-2-fluorescence, and SOCE from increase of [Ca2+]i following re-addition of extracellular Ca2+ after store depletion with thapsigargin (1 µM). NFAT5 and ORAI1 protein abundance was estimated with Western blots. As a result, ß-glycerophosphate increased NFAT5, ORAI1/2/3, STIM1/2 transcript levels, as well as SOCE. Transcript levels of NFAT5, SGK1, ORAI1/2/3, and STIM1/2 as well as NFAT5 and ORAI1 protein abundance were significantly higher in platelets isolated from patients with impaired kidney function than in platelets from control volunteers. In conclusion, phosphate-donor ß-glycerophosphate triggers a signaling cascade of NFAT5/SGK1/ORAI/STIM, thus up-regulating store-operated Ca2+-entry.
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Affiliation(s)
- Lisann Pelzl
- Transfusion Medicine, Medical Faculty, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | - Itishri Sahu
- Department of Internal Medicine III, Eberhard Karl University Tuebingen, Tuebingen, Germany.,Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Ke Ma
- Department of Internal Medicine III, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | - David Heinzmann
- Department of Internal Medicine III, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | | | - Tamer Al-Maghout
- Department of Internal Medicine III, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | - Basma Sukkar
- Department of Internal Medicine III, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | - Yamini Sharma
- Department of Internal Medicine III, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | - Irene Marini
- Transfusion Medicine, Medical Faculty, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | - Flaviana Rigoni
- Transfusion Medicine, Medical Faculty, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | - Ferruh Artunc
- Department of Internal Medicine IV, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | - Hang Cao
- Department of Internal Medicine III, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | - Ravi Gutti
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Jakob Voelkl
- Institute for Physiology, Johannes Kepler University, Linz, Austria.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Department of Nephrology and Medical Intensive Care, Charité University Medicine, Berlin, Germany.,Department of Internal Medicine and Cardiology, Campus Virchow Klinikum, Charité University Medicine, Berlin, Germany
| | - Burkert Pieske
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, and Department of Internal Medicine and Cardiology, German Heart Center Berlin (DHZB), Berlin, Germany.,Department of Internal Medicine and Cardiology, Campus Virchow Klinikum, Charité University Medicine, Berlin, Germany
| | - Meinrad Gawaz
- Department of Internal Medicine III, Eberhard Karl University Tuebingen, Tuebingen, Germany
| | - Tamam Bakchoul
- Transfusion Medicine, Medical Faculty, Eberhard Karl University Tuebingen, Tuebingen, Germany.,Centre for Clinical Transfusion Medicine, University Hospital of Tuebingen, Tuebingen, Germany
| | - Florian Lang
- Department of Vegetative and Clinical Physiology, Eberhard Karl University Tuebingen, Tuebingen, Germany.
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36
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Cen L, Xing F, Xu L, Cao Y. Potential Role of Gene Regulator NFAT5 in the Pathogenesis of Diabetes Mellitus. J Diabetes Res 2020; 2020:6927429. [PMID: 33015193 PMCID: PMC7512074 DOI: 10.1155/2020/6927429] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 07/15/2020] [Accepted: 08/31/2020] [Indexed: 02/05/2023] Open
Abstract
Nuclear factor of activated T cells 5 (NFAT5), a Rel/nuclear factor- (NF-) κB family member, is the only known gene regulator of the mammalian adaptive response to osmotic stress. Exposure to elevated glucose increases the expression and nuclear translocation of NFAT5, as well as NFAT5-driven transcriptional activity in vivo and in vitro. Increased expression of NFAT5 is closely correlated with the progression of diabetes in patients. The distinct structure of NFAT5 governs its physiological and pathogenic roles, indicating its opposing functions. The ability of NFAT5 to maintain cell homeostasis and proliferation is impaired in patients with diabetes. NFAT5 promotes the formation of aldose reductase, pathogenesis of diabetic vascular complications, and insulin resistance. Additionally, NFAT5 activates inflammation at a very early stage of diabetes and induces persistent inflammation. Recent studies revealed that NFAT5 is an effective therapeutic target for diabetes. Here, we describe the current knowledge about NFAT5 and its relationship with diabetes, focusing on its diverse regulatory functions, and highlight the importance of this protein as a potential therapeutic target in patients with diabetes.
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Affiliation(s)
- Lusha Cen
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Fengling Xing
- Department of Dermatology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Liying Xu
- Department of Emergency, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Yi Cao
- Department of Dermatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Youdian Rd. 54th, Hangzhou 310006, China
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Li K, Li M, Li W, Yu H, Sun X, Zhang Q, Li Y, Li X, Li Y, Abel ED, Wu Q, Chen H. Airway epithelial regeneration requires autophagy and glucose metabolism. Cell Death Dis 2019; 10:875. [PMID: 31748541 PMCID: PMC6868131 DOI: 10.1038/s41419-019-2111-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 10/11/2019] [Accepted: 10/31/2019] [Indexed: 02/08/2023]
Abstract
Efficient repair of injured epithelium by airway progenitor cells could prevent acute inflammation from progressing into chronic phase in lung. Here, we used small molecules, genetic loss-of-function, organoid cultures, and in vivo lung-injury models to show that autophagy is essential for maintaining the pool of airway stem-like vClub cells by promoting their proliferation during ovalbumin-induced acute inflammation. Mechanistically, impaired autophagy disrupted glucose uptake in vClub progenitor cells, and either reduced accessibility to glucose or partial inhibition of glycolysis promoted the proliferative capacity of vClub progenitor cells and their daughter Club cells. However, glucose deprivation or glycolysis blockade abrogated the proliferative capacity of airway vClub cells and Club cells but promoted ciliated and goblet cell differentiation. Deficiency of glucose transporter-1 suppressed the proliferative capacity of airway progenitor cells after ovalbumin challenge. These findings suggested that autophagy and glucose metabolism are essential for the maintenance of airway epithelium at steady state and during allergic inflammation.
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Affiliation(s)
- Kuan Li
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China
| | - Minmin Li
- Department of Basic Medicine, Tianjin University Haihe Hospital, Tianjin, China
| | - Wenli Li
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China
| | - Hongzhi Yu
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China
| | - Xin Sun
- Department of Basic Medicine, Tianjin University Haihe Hospital, Tianjin, China
| | - Qiuyang Zhang
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China
| | - Yu Li
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China
| | - Xue Li
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China
| | - Yue Li
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China
| | - E Dale Abel
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Qi Wu
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China.
- Key Research Laboratory for Infectious Disease Prevention for State Administration of Traditional Chinese Medicine, Tianjin Institute of Respiratory Diseases, Tianjin, China.
| | - Huaiyong Chen
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin, China.
- Department of Basic Medicine, Tianjin University Haihe Hospital, Tianjin, China.
- Key Research Laboratory for Infectious Disease Prevention for State Administration of Traditional Chinese Medicine, Tianjin Institute of Respiratory Diseases, Tianjin, China.
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38
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Abstract
The lung is continuously exposed to particles, toxicants, and microbial pathogens that are cleared by a complex mechanical, innate, and acquired immune system. Mucociliary clearance, mediated by the actions of diverse conducting airway and submucosal gland epithelial cells, plays a critical role in a multilayered defense system by secreting fluids, electrolytes, antimicrobial and antiinflammatory proteins, and mucus onto airway surfaces. The mucociliary escalator removes particles and pathogens by the mechanical actions of cilia and cough. Abnormalities in mucociliary clearance, whether related to impaired fluid secretion, ciliary dysfunction, lack of cough, or the disruption of epithelial cells lining the respiratory tract, contribute to the pathogenesis of common chronic pulmonary disorders. Although mucus and other airway epithelial secretions play a critical role in protecting the lung during acute injury, impaired mucus clearance after chronic mucus hyperproduction causes airway obstruction and infection, which contribute to morbidity in common pulmonary disorders, including chronic obstructive pulmonary disease, asthma, idiopathic pulmonary fibrosis, cystic fibrosis, bronchiectasis, and primary ciliary dyskinesia. In this summary, the molecular and cellular mechanisms mediating airway mucociliary clearance, as well as the role of goblet cell metaplasia and mucus hyperproduction, in the pathogenesis of chronic respiratory diseases are considered.
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Interleukin-13 Stimulation Reveals the Cellular and Functional Plasticity of the Airway Epithelium. Ann Am Thorac Soc 2019; 15:S98-S102. [PMID: 29676620 DOI: 10.1513/annalsats.201711-868mg] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
About 50% of patients with asthma exhibit chronic airway inflammation driven by the type 2 cytokines interleukin (IL)-4, IL-5, and IL-13. These patients with type 2-high asthma experience more allergic symptoms, greater airway hyperresponsiveness, and more severe mucus obstruction than patients with type 2-low asthma. Mouse models of asthma have shown that much of the airway dysfunction in these models can be generated by IL-13 stimulation of the airway epithelium alone. Both in vivo mouse model studies and in vitro studies of human mucociliary airway epithelial cultures have shown that IL-13 induces cellular remodeling of the airway epithelium through proliferation-independent transdifferentiation processes. In both humans and mice, IL-13 stimulation of the airway epithelium results in generation of hypersecretory mucin 5AC (MUC5AC)-expressing mucus cells. Whereas club cells have been shown to be the source of these mucin 5AC-positive mucus cells in mice, the origin of these mucus cells in humans is unclear. In humans, chronic IL-13 stimulation appears to result in loss of ciliated cells. Moreover, IL-13 stimulation can block ciliated cell differentiation from human basal airway epithelial cells. Coincident with IL-13 cellular remodeling are reported decreases in mucociliary transport and ciliary beat frequency. These IL-13-mediated changes in mucociliary function are accompanied by disorganization of cilia, a decrease in the ratio of mucin 5B (MUC5B) to mucin 5AC, and mucus gel tethering to the epithelial surface by mucin 5AC. These airway epithelial responses to IL-13 are mediated by multiple transcription factors, including signal transducer and activator of transcription-6 (STAT6), SAM pointed domain-containing Ets transcription factor (SPDEF), Forkhead box A2 (FOXA2), and Forkhead box J1 (FOXJ1). In addition, analysis of RNA-sequencing data derived from airway epithelial cells shows how IL-13 stimulation promotes broad changes in gene expression across the transcriptome. These results reveal the plastic nature of airway epithelial cells that enables the epithelium to undergo remodeling and functional shifts in response to IL-13 stimulation. With use of new technology, future studies should lead to greater understanding of how IL-13 and other stimuli of disease bring about airway epithelial remodeling, which may aid in the development of therapies that ameliorate airway dysfunction in asthma and other diseases.
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40
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O'Neal WK, Ribeiro CMP. "Shocking" the System to Achieve Efficient Gene Targeting in Primary Human Airway Epithelia. Am J Respir Cell Mol Biol 2019; 62:279-280. [PMID: 31633992 PMCID: PMC7055690 DOI: 10.1165/rcmb.2019-0360ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Wanda K O'Neal
- Department of Medicine.,Cystic Fibrosis Research CenterThe University of North Carolina at Chapel HillChapel Hill, North Carolinaand
| | - Carla M P Ribeiro
- Department of Medicine.,Department of MedicineDepartment of Cell Biology and Physiology
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41
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Britto CJ, Cohn L. Escalating Mucus Inhibition to the Top of Our Priorities. Am J Respir Cell Mol Biol 2019; 61:275-276. [PMID: 31063695 PMCID: PMC6839933 DOI: 10.1165/rcmb.2019-0143ed] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Clemente J Britto
- Section of Pulmonary, Critical Care, and Sleep MedicineYale School of MedicineNew Haven, Connecticut
| | - Lauren Cohn
- Section of Pulmonary, Critical Care, and Sleep MedicineYale School of MedicineNew Haven, Connecticut
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Zuo WL, Shenoy SA, Li S, O'Beirne SL, Strulovici-Barel Y, Leopold PL, Wang G, Staudt MR, Walters MS, Mason C, Kaner RJ, Mezey JG, Crystal RG. Ontogeny and Biology of Human Small Airway Epithelial Club Cells. Am J Respir Crit Care Med 2019; 198:1375-1388. [PMID: 29874100 DOI: 10.1164/rccm.201710-2107oc] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE Little is known about human club cells, dome-shaped cells with dense cytoplasmic granules and microvilli that represent the major secretory cells of the human small airways (at least sixth-generation bronchi). OBJECTIVES To define the ontogeny and biology of the human small airway epithelium club cell. METHODS The small airway epithelium was sampled from the normal human lung by bronchoscopy and brushing. Single-cell transcriptome analysis and air-liquid interface culture were used to assess club cell ontogeny and biology. MEASUREMENTS AND MAIN RESULTS We identified the club cell population by unbiased clustering using single-cell transcriptome sequencing. Principal component gradient analysis uncovered an ontologic link between KRT5 (keratin 5)+ basal cells and SCGB1A1 (secretoglobin family 1A member 1)+ club cells, a hypothesis verified by demonstrating in vitro that a pure population of human KRT5+ SCGB1A1- small airway epithelial basal cells differentiate into SCGB1A1+KRT5- club cells on air-liquid interface culture. Using SCGB1A1 as the marker of club cells, the single-cell analysis identified novel roles for these cells in host defense, xenobiotic metabolism, antiprotease, physical barrier function, monogenic lung disorders, and receptors for human viruses. CONCLUSIONS These observations provide novel insights into the molecular phenotype and biologic functions of the human club cell population and identify basal cells as the human progenitor cells for club cells.
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Affiliation(s)
| | | | - Sheng Li
- 2 Institute for Computational Biomedicine
| | | | | | | | | | | | | | - Christopher Mason
- 2 Institute for Computational Biomedicine.,4 Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York; and
| | - Robert J Kaner
- 1 Department of Genetic Medicine.,3 Department of Medicine, and
| | - Jason G Mezey
- 1 Department of Genetic Medicine.,5 Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, New York
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Fang R, Uchiyama R, Sakai S, Hara H, Tsutsui H, Suda T, Mitsuyama M, Kawamura I, Tsuchiya K. ASC and NLRP3 maintain innate immune homeostasis in the airway through an inflammasome-independent mechanism. Mucosal Immunol 2019; 12:1092-1103. [PMID: 31278375 DOI: 10.1038/s41385-019-0181-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 05/29/2019] [Accepted: 06/06/2019] [Indexed: 02/07/2023]
Abstract
It is widely accepted that inflammasomes protect the host from microbial pathogens by inducing inflammatory responses through caspase-1 activation. Here, we show that the inflammasome components ASC and NLRP3 are required for resistance to pneumococcal pneumonia, whereas caspase-1 and caspase-11 are dispensable. In the lung of S. pneumoniae-infected mice, ASC and NLRP3, but not caspase-1/11, were required for optimal expression of several mucosal innate immune proteins. Among them, TFF2 and intelectin-1 appeared to be protective against pneumococcal pneumonia. During infection, ASC and NLRP3 maintained the expression of the transcription factor SPDEF, which can facilitate the expression of the mucosal defense factor genes. Moreover, activation of STAT6, a key regulator of Spdef expression, depended on ASC and NLRP3. Overexpression of these inflammasome proteins sustained STAT6 phosphorylation induced by type 2 cytokines. Collectively, this study suggests that ASC and NLRP3 promote airway mucosal innate immunity by an inflammasome-independent mechanism involving the STAT6-SPDEF pathway.
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Affiliation(s)
- Rendong Fang
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China.,Department of Microbiology, Kyoto University Graduate School of Medicine, Kyoto, 606-8501, Japan
| | - Ryosuke Uchiyama
- Department of Microbiology, Hyogo College of Medicine, Nishinomiya, 663-8501, Japan.,School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya, 663-8179, Japan
| | - Shunsuke Sakai
- Department of Microbiology, Kyoto University Graduate School of Medicine, Kyoto, 606-8501, Japan.,T Lymphocyte Biology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Hideki Hara
- Department of Microbiology, Kyoto University Graduate School of Medicine, Kyoto, 606-8501, Japan.,Department of Pathology and Comprehensive Cancer Center, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Hiroko Tsutsui
- Department of Microbiology, Hyogo College of Medicine, Nishinomiya, 663-8501, Japan
| | - Takashi Suda
- Division of Immunology and Molecular Biology, Cancer Research Institute, Kanazawa University, Kakuma-Machi, Kanazawa, 920-1192, Japan
| | - Masao Mitsuyama
- Department of Microbiology, Kyoto University Graduate School of Medicine, Kyoto, 606-8501, Japan.,Hakubi Center, Kyoto University, Kyoto, 606-8501, Japan
| | - Ikuo Kawamura
- Department of Microbiology, Kyoto University Graduate School of Medicine, Kyoto, 606-8501, Japan
| | - Kohsuke Tsuchiya
- Department of Microbiology, Kyoto University Graduate School of Medicine, Kyoto, 606-8501, Japan. .,Division of Immunology and Molecular Biology, Cancer Research Institute, Kanazawa University, Kakuma-Machi, Kanazawa, 920-1192, Japan. .,Institute for Frontier Science Initiative (InFiniti), Kanazawa University, Kanazawa, 920-1192, Japan.
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44
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Wang G, Lou HH, Salit J, Leopold PL, Driscoll S, Schymeinsky J, Quast K, Visvanathan S, Fine JS, Thomas MJ, Crystal RG. Characterization of an immortalized human small airway basal stem/progenitor cell line with airway region-specific differentiation capacity. Respir Res 2019; 20:196. [PMID: 31443657 PMCID: PMC6708250 DOI: 10.1186/s12931-019-1140-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 07/22/2019] [Indexed: 12/22/2022] Open
Abstract
Background The pathology of chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF) and most lung cancers involves the small airway epithelium (SAE), the single continuous layer of cells lining the airways ≥ 6th generations. The basal cells (BC) are the stem/progenitor cells of the SAE, responsible for the differentiation into intermediate cells and ciliated, club and mucous cells. To facilitate the study of the biology of the human SAE in health and disease, we immortalized and characterized a normal human SAE basal cell line. Methods Small airway basal cells were purified from brushed SAE of a healthy nonsmoker donor with a characteristic normal SAE transcriptome. The BC were immortalized by retrovirus-mediated telomerase reverse transcriptase (TERT) transduction and single cell drug selection. The resulting cell line (hSABCi-NS1.1) was characterized by RNAseq, TaqMan PCR, protein immunofluorescence, differentiation capacity on an air-liquid interface (ALI) culture, transepithelial electrical resistance (TEER), airway region-associated features and response to genetic modification with SPDEF. Results The hSABCi-NS1.1 single-clone-derived cell line continued to proliferate for > 200 doubling levels and > 70 passages, continuing to maintain basal cell features (TP63+, KRT5+). When cultured on ALI, hSABCi-NS1.1 cells consistently formed tight junctions and differentiated into ciliated, club (SCGB1A1+), mucous (MUC5AC+, MUC5B+), neuroendocrine (CHGA+), ionocyte (FOXI1+) and surfactant protein positive cells (SFTPA+, SFTPB+, SFTPD+), observations confirmed by RNAseq and TaqMan PCR. Annotation enrichment analysis showed that “cilium” and “immunity” were enriched in functions of the top-1500 up-regulated genes. RNAseq reads alignment corroborated expression of CD4, CD74 and MHC-II. Compared to the large airway cell line BCi-NS1.1, differentiated of hSABCi-NS1.1 cells on ALI were enriched with small airway epithelial genes, including surfactant protein genes, LTF and small airway development relevant transcription factors NKX2–1, GATA6, SOX9, HOPX, ID2 and ETV5. Lentivirus-mediated expression of SPDEF in hSABCi-NS1.1 cells induced secretory cell metaplasia, accompanied with characteristic COPD-associated SAE secretory cell changes, including up-regulation of MSMB, CEACAM5 and down-regulation of LTF. Conclusions The immortalized hSABCi-NS1.1 cell line has diverse differentiation capacities and retains SAE features, which will be useful for understanding the biology of SAE, the pathogenesis of SAE-related diseases, and testing new pharmacologic agents. Electronic supplementary material The online version of this article (10.1186/s12931-019-1140-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Guoqing Wang
- Department of Genetic Medicine, Weill Cornell Medical College, 1300 York Avenue, Box 164, New York, NY, 10065, USA
| | - Howard H Lou
- Department of Genetic Medicine, Weill Cornell Medical College, 1300 York Avenue, Box 164, New York, NY, 10065, USA
| | - Jacqueline Salit
- Department of Genetic Medicine, Weill Cornell Medical College, 1300 York Avenue, Box 164, New York, NY, 10065, USA
| | - Philip L Leopold
- Department of Genetic Medicine, Weill Cornell Medical College, 1300 York Avenue, Box 164, New York, NY, 10065, USA
| | - Sharon Driscoll
- Department of Genetic Medicine, Weill Cornell Medical College, 1300 York Avenue, Box 164, New York, NY, 10065, USA
| | | | - Karsten Quast
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riss, Germany
| | | | - Jay S Fine
- Boehringer Ingelheim Pharmaceuticals, Ridgefield, CT, USA
| | - Matthew J Thomas
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riss, Germany
| | - Ronald G Crystal
- Department of Genetic Medicine, Weill Cornell Medical College, 1300 York Avenue, Box 164, New York, NY, 10065, USA.
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45
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Alam P, Bousset L, Melki R, Otzen DE. α-synuclein oligomers and fibrils: a spectrum of species, a spectrum of toxicities. J Neurochem 2019; 150:522-534. [PMID: 31254394 DOI: 10.1111/jnc.14808] [Citation(s) in RCA: 176] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/05/2019] [Accepted: 06/21/2019] [Indexed: 12/14/2022]
Abstract
This review article provides an overview of the different species that α-synuclein aggregates can populate. It also attempts to reconcile conflicting views regarding the cytotoxic roles of oligomers versus fibrils. α-synuclein, while highly dynamic in the monomeric state, can access a large number of different assembly states. Depending on assembly conditions, these states can interconvert over different timescales. The fibrillar state is the most thermodynamically favored due to the many stabilizing interactions formed between each monomeric unit, but different fibrillar types form at different rates. The end distribution is likely to reflect kinetic partitioning as much as thermodynamic equilibra. In addition, metastable oligomeric species, some of which are on-pathway and others off-pathway, can be populated for remarkably long periods of time. Chemical modifications (phosphorylation, oxidation, covalent links to ligands, etc.) perturb these physical interconversions and invariably destabilize the fibrillar state, leading to small prefibrillar assemblies which can coalesce into amorphous states. Both oligomeric and fibrillar species have been shown to be cytotoxic although firm conclusions require very careful evaluation of particle concentrations and is complicated by the great variety and heterogeneity of different experimentally observed states. The mechanistic relationship between oligomers and fibrils remains to be clarified, both in terms of assembly of oligomers into fibrils and potential dissolution of fibrils into oligomers. While oligomers are possibly implicated in the collapse of neuronal homeostasis, the fibrillar state(s) appears to be the most efficient at propagating itself both in vitro and in vivo, pointing to critical roles for multiple different aggregate species in the progression of Parkinson's disease (https://onlinelibrary.wiley.com/page/journal/14714159/homepage/virtual_issues.htm). This article is part of the Special Issue "Synuclein".
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Affiliation(s)
- Parvez Alam
- iNANO and Department of Molecular Biology and Genetics, Aarhus University, Aarhus C, Denmark
| | - Luc Bousset
- Institute Francois Jacob (MIRCen), CEA and Laboratory of Neurodegenerative Diseases, CNRS, Fontenay-Aux-Roses cedex, France
| | - Ronald Melki
- Institute Francois Jacob (MIRCen), CEA and Laboratory of Neurodegenerative Diseases, CNRS, Fontenay-Aux-Roses cedex, France
| | - Daniel E Otzen
- iNANO and Department of Molecular Biology and Genetics, Aarhus University, Aarhus C, Denmark
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Chen G, Ribeiro CMP, Sun L, Okuda K, Kato T, Gilmore RC, Martino MB, Dang H, Abzhanova A, Lin JM, Hull-Ryde EA, Volmer AS, Randell SH, Livraghi-Butrico A, Deng Y, Scherer PE, Stripp BR, O’Neal WK, Boucher RC. XBP1S Regulates MUC5B in a Promoter Variant-Dependent Pathway in Idiopathic Pulmonary Fibrosis Airway Epithelia. Am J Respir Crit Care Med 2019; 200:220-234. [PMID: 30973754 PMCID: PMC6635783 DOI: 10.1164/rccm.201810-1972oc] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 04/11/2019] [Indexed: 02/05/2023] Open
Abstract
Rationale: The goal was to connect elements of idiopathic pulmonary fibrosis (IPF) pathogenesis, including chronic endoplasmic reticulum stress in respiratory epithelia associated with injury/inflammation and remodeling, distal airway mucus obstruction and honeycomb cyst formation with accumulation of MUC5B (mucin 5B), and associations between IPF risk and polymorphisms in the MUC5B promoter. Objectives: To test whether the endoplasmic reticulum (ER) stress sensor protein ERN2 (ER-to-nucleus signaling 2) and its downstream effector, the spliced form of XBP1S (X-box-binding protein 1), regulate MUC5B expression and differentially activate the MUC5B promoter variant in respiratory epithelia. Methods: Primary human airway epithelial (HAE) cells, transgenic mouse models, human IPF lung tissues, and cell lines expressing XBP1S and MUC5B promoters were used to explore relationships between the ERN2/XBP1S pathway and MUC5B. An inhibitor of the pathway, KIRA6, and XBP1 CRISPR-Cas9 were used in HAE cells to explore therapeutic potential. Measurements and Main Results: ERN2 regulated MUC5B and MUC5AC mRNAs. Downstream XBP1S selectively promoted MUC5B expression in vitro and in distal murine airway epithelia in vivo. XBP1S bound to the proximal region of the MUC5B promoter and differentially upregulated MUC5B expression in the context of the MUC5B promoter rs35705950 variant. High levels of ERN2 and XBP1S were associated with excessive MUC5B mRNAs in distal airways of human IPF lungs. Cytokine-induced MUC5B expression in HAE cells was inhibited by KIRA6 and XBP1 CRISPR-Cas9. Conclusions: A positive feedback bistable ERN2-XBP1S pathway regulates MUC5B-dominated mucus obstruction in IPF, providing an unfolded protein response-dependent mechanism linking the MUC5B promoter rs35705950 polymorphism with IPF pathogenesis. Inhibiting ERN2-dependent pathways/elements may provide a therapeutic option for IPF.
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Affiliation(s)
- Gang Chen
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Carla M. P. Ribeiro
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Ling Sun
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Research Center of Regeneration Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Kenichi Okuda
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Takafumi Kato
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Rodney C. Gilmore
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Mary B. Martino
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Hong Dang
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Aiman Abzhanova
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jennifer M. Lin
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Emily A. Hull-Ryde
- Center of Integrative Chemical Biology and Drug Discovery, University of North Carolina Eshelman School of Pharmacy, Chapel Hill, North Carolina
| | - Allison S. Volmer
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Scott H. Randell
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Alessandra Livraghi-Butrico
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Yingfeng Deng
- Department of Internal Medicine, Touchstone Diabetes Center, University of Texas Southwestern Medical Center, Dallas, Texas; and
| | - Philipp E. Scherer
- Department of Internal Medicine, Touchstone Diabetes Center, University of Texas Southwestern Medical Center, Dallas, Texas; and
| | - Barry R. Stripp
- Pulmonary Research, Cedars Sinai Medical Center, Los Angeles, California
| | - Wanda K. O’Neal
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Richard C. Boucher
- Marsico Lung Institute and Cystic Fibrosis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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Cheng J, Lu Q, Song L, Ho MS. α-Synuclein Trafficking in Parkinson's Disease: Insights From Fly and Mouse Models. ASN Neuro 2019; 10:1759091418812587. [PMID: 30482039 PMCID: PMC6259071 DOI: 10.1177/1759091418812587] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Protein aggregation and accumulation are common pathological hallmarks in neurodegenerative diseases. To efficiently clear and eliminate such aggregation becomes an important cellular strategy for cell survival. Lewy bodies inclusion and aggregation of α-Synuclein (α-Syn) during the pathogenesis of Parkinson's disease (PD) serve as a good example and are potentially linked to other pathological PD features such as progressive dopaminergic neuron cell death, behavioral defects, and nonmotor symptoms like anosmia, cognitive impairment, and depression. Years of research have revealed a variety of mechanisms underlying α-Syn aggregation, clearance, and spread. Particularly, vesicular routes associated with the trafficking of α-Syn, leading to its aggregation and accumulation, have been shown to play vital roles in PD pathogenesis. How α-Syn proteins propagate among cells in a prion-like manner, either from or to neurons and glia, via means of uptake or secretion, are questions under active investigation and have been of central interest in the field of PD study. This review covers components and pathways of possible vesicular routes involved in α-Syn trafficking. Events including but not limited to exocytosis and endocytosis will be discussed within the context of an overall cellular trafficking theme. Recent advances on α-Syn trafficking mechanisms and their significance in mediating PD pathogenesis will be thoroughly reviewed, ending with a discussion on the advantages and limitations of different animal PD models.
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Affiliation(s)
- Jingjing Cheng
- 1 School of Life Science and Technology, ShanghaiTech University, Shanghai, China.,*These authors contributed equally to this work
| | - Qingqing Lu
- 2 Department of Anatomy and Neurobiology, Tongji University School of Medicine, Shanghai, China.,*These authors contributed equally to this work
| | - Li Song
- 2 Department of Anatomy and Neurobiology, Tongji University School of Medicine, Shanghai, China
| | - Margaret S Ho
- 1 School of Life Science and Technology, ShanghaiTech University, Shanghai, China
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González N, Arcos-López T, König A, Quintanar L, Menacho Márquez M, Outeiro TF, Fernández CO. Effects of alpha-synuclein post-translational modifications on metal binding. J Neurochem 2019; 150:507-521. [PMID: 31099098 DOI: 10.1111/jnc.14721] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/11/2019] [Accepted: 05/13/2019] [Indexed: 12/19/2022]
Abstract
Parkinson's disease is the second most common neurodegenerative disorder worldwide. Neurodegeneration in this pathology is characterized by the loss of dopaminergic neurons in the substantia nigra, coupled with cytoplasmic inclusions known as Lewy bodies containing α-synuclein. The brain is an organ that concentrates metal ions, and there is emerging evidence that a break-down in metal homeostasis may be a critical factor in a variety of neurodegenerative diseases. α-synuclein has emerged as an important metal-binding protein in the brain, whereas these interactions play an important role in its aggregation and might represent a link between protein aggregation, oxidative damage, and neuronal cell loss. Additionally, α-synuclein undergoes several post-translational modifications that regulate its structure and physiological function, and may be linked to the aggregation and/or oligomer formation. This review is focused on the interaction of this protein with physiologically relevant metal ions, highlighting the cases where metal-AS interactions profile as key modulators for its structural, aggregation, and membrane-binding properties. The impact of α-synuclein phosphorylation and N-terminal acetylation in the metal-binding properties of the protein are also discussed, underscoring a potential interplay between PTMs and metal ion binding in regulating α-synuclein physiological functions and its role in pathology. This article is part of the Special Issue "Synuclein".
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Affiliation(s)
- Nazareno González
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC), Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Rosario, Argentina
| | - Trinidad Arcos-López
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| | - Annekatrin König
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, University of Göttingen, Göttingen, Germany
| | - Liliana Quintanar
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Mexico City, Mexico
| | - Mauricio Menacho Márquez
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC), Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Rosario, Argentina
| | - Tiago F Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, University of Göttingen, Göttingen, Germany.,Max Planck Institute for Experimental Medicine, Göttingen, Germany.,Institute of Neuroscience, The Medical School, Newcastle University, Framlington Place, Newcastle Upon Tyne, UK
| | - Claudio O Fernández
- Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC), Instituto de Investigaciones para el Descubrimiento de Fármacos de Rosario (IIDEFAR, UNR-CONICET), Universidad Nacional de Rosario, Rosario, Argentina.,Department of NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
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Abstract
Sodium intake is undoubtedly indispensable for normal body functions but can be detrimental when taken in excess of dietary requirements. The consequences of excessive salt intake are becoming increasingly clear as high salt consumption persists across the globe. Salt has long been suspected to promote the development of hypertension and cardiovascular diseases and is now also recognized as a potential modulator of inflammatory and autoimmune diseases through its direct and indirect effects on immune cells. The finding that, in addition to the kidneys, other organs such as the skin regulate sodium levels in the body prompted new hypotheses, including the concept that skin-resident macrophages might participate in tissue sodium regulation through their interactions with lymphatic vessels. Moreover, immune cells such as macrophages and different T cell subsets are found in sodium-rich interstitial microenvironments, where sodium levels modulate their function. Alterations to the intestinal bacterial community induced by excess dietary salt represent another relevant axis whereby salt indirectly modulates immune cell function. Depending on the inflammatory context, sodium might either contribute to protective immunity (for example, by enhancing host responses against cutaneous pathogens) or it might contribute to immune dysregulation and promote the development of cardiovascular and autoimmune diseases.
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Krejciova Z, Carlson GA, Giles K, Prusiner SB. Replication of multiple system atrophy prions in primary astrocyte cultures from transgenic mice expressing human α-synuclein. Acta Neuropathol Commun 2019; 7:81. [PMID: 31109379 PMCID: PMC6526619 DOI: 10.1186/s40478-019-0703-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 03/16/2019] [Indexed: 12/20/2022] Open
Abstract
Glial cytoplasmic inclusions (GCIs) containing aggregated and hyperphosphorylated α-synuclein are the signature neuropathological hallmark of multiple system atrophy (MSA). Native α-synuclein can adopt a prion conformation that self-propagates and spreads throughout the brain ultimately resulting in neurodegeneration. A growing body of evidence argues that, in addition to oligodendrocytes, astrocytes contain α-synuclein inclusions in MSA and other α-synucleinopathies at advanced stages of disease. To study the role of astrocytes in MSA, we added MSA brain homogenate to primary cultures of astrocytes from transgenic (Tg) mouse lines expressing human α-synuclein. Astrocytes from four Tg lines, expressing either wild-type or mutant (A53T or A30P) human α-synuclein, propagated and accumulated α-synuclein prions. Furthermore, we found that MSA-infected astrocytes formed two morphologically distinct α-synuclein inclusions: filamentous and granular. Both types of cytoplasmic inclusions shared several features characteristic of α-synuclein inclusions in synucleinopathies: hyperphosphorylation preceded by aggregation, ubiquitination, thioflavin S–positivity, and co-localization with p62. Our findings demonstrate that human α-synuclein forms distinct inclusion morphologies and propagates within cultured Tg astrocytes exposed to MSA prions, indicating that α-synuclein expression determines the tropism of inclusion formation in certain cells. Thus, our work may prove useful in elucidating the role of astrocytes in the pathogenic mechanisms that feature in neurodegeneration caused by MSA prions.
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