1
|
Vladimir de la Rosa J, Tabraue C, Huang Z, Orizaola MC, Martin‐Rodríguez P, Steffensen KR, Zapata JM, Boscá L, Tontonoz P, Alemany S, Treuter E, Castrillo A. Reprogramming of the LXRα Transcriptome Sustains Macrophage Secondary Inflammatory Responses. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307201. [PMID: 38549193 PMCID: PMC11132038 DOI: 10.1002/advs.202307201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 03/01/2024] [Indexed: 05/29/2024]
Abstract
Macrophages regulate essential aspects of innate immunity against pathogens. In response to microbial components, macrophages activate primary and secondary inflammatory gene programs crucial for host defense. The liver X receptors (LXRα, LXRβ) are ligand-dependent nuclear receptors that direct gene expression important for cholesterol metabolism and inflammation, but little is known about the individual roles of LXRα and LXRβ in antimicrobial responses. Here, the results demonstrate that induction of LXRα transcription by prolonged exposure to lipopolysaccharide (LPS) supports inflammatory gene expression in macrophages. LXRα transcription is induced by NF-κB and type-I interferon downstream of TLR4 activation. Moreover, LPS triggers a reprogramming of the LXRα cistrome that promotes cytokine and chemokine gene expression through direct LXRα binding to DNA consensus sequences within cis-regulatory regions including enhancers. LXRα-deficient macrophages present fewer binding of p65 NF-κB and reduced histone H3K27 acetylation at enhancers of secondary inflammatory response genes. Mice lacking LXRα in the hematopoietic compartment show impaired responses to bacterial endotoxin in peritonitis models, exhibiting reduced neutrophil infiltration and decreased expansion and inflammatory activation of recruited F4/80lo-MHC-IIhi peritoneal macrophages. Together, these results uncover a previously unrecognized function for LXRα-dependent transcriptional cis-activation of secondary inflammatory gene expression in macrophages and the host response to microbial ligands.
Collapse
Affiliation(s)
- Juan Vladimir de la Rosa
- Unidad de Biomedicina (Unidad Asociada al CSIC)Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS) de la Universidad de Las Palmas de Gran CanariaLas Palmas35016Spain
| | - Carlos Tabraue
- Unidad de Biomedicina (Unidad Asociada al CSIC)Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS) de la Universidad de Las Palmas de Gran CanariaLas Palmas35016Spain
- Departamento de MorfologíaUniversidad de Las Palmas de Gran CanariaLas Palmas35016Spain
| | - Zhiqiang Huang
- Department of Biosciences and NutritionKarolinska Institutet, NEOHuddinge14183Sweden
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular MedicineMedical SchoolNanjing UniversityNanjing210093P. R. China
| | - Marta C. Orizaola
- Department of Metabolic and Immune Diseases. Instituto de Investigaciones Biomédicas Sols‐MorrealeCentro Mixto Consejo Superior de Investigaciones Científicas CSIC‐Universidad Autónoma de MadridMadrid28029Spain
| | - Patricia Martin‐Rodríguez
- Unidad de Biomedicina (Unidad Asociada al CSIC)Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS) de la Universidad de Las Palmas de Gran CanariaLas Palmas35016Spain
| | - Knut R. Steffensen
- Division of Clinical Chemistry, Department of Laboratory MedicineKarolinska InstituteHuddinge14186Sweden
| | - Juan Manuel Zapata
- Department of Metabolic and Immune Diseases. Instituto de Investigaciones Biomédicas Sols‐MorrealeCentro Mixto Consejo Superior de Investigaciones Científicas CSIC‐Universidad Autónoma de MadridMadrid28029Spain
| | - Lisardo Boscá
- Department of Metabolic and Immune Diseases. Instituto de Investigaciones Biomédicas Sols‐MorrealeCentro Mixto Consejo Superior de Investigaciones Científicas CSIC‐Universidad Autónoma de MadridMadrid28029Spain
- Centro de Investigación Biomedica en Red sobre Enfermedades Cardiovasculares (CIBERCV)Madrid28029Spain
| | - Peter Tontonoz
- Department of Pathology and Laboratory MedicineUniversity of California Los AngelesUCLACalifornia90095USA
| | - Susana Alemany
- Department of Metabolic and Immune Diseases. Instituto de Investigaciones Biomédicas Sols‐MorrealeCentro Mixto Consejo Superior de Investigaciones Científicas CSIC‐Universidad Autónoma de MadridMadrid28029Spain
| | - Eckardt Treuter
- Department of Biosciences and NutritionKarolinska Institutet, NEOHuddinge14183Sweden
| | - Antonio Castrillo
- Unidad de Biomedicina (Unidad Asociada al CSIC)Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS) de la Universidad de Las Palmas de Gran CanariaLas Palmas35016Spain
- Department of Metabolic and Immune Diseases. Instituto de Investigaciones Biomédicas Sols‐MorrealeCentro Mixto Consejo Superior de Investigaciones Científicas CSIC‐Universidad Autónoma de MadridMadrid28029Spain
| |
Collapse
|
2
|
Plecitá-Hlavatá L, Brázdová A, Křivonosková M, Hu CJ, Phang T, Tauber J, Li M, Zhang H, Hoetzenecker K, Crnkovic S, Kwapiszewska G, Stenmark KR. Microenvironmental regulation of T-cells in pulmonary hypertension. Front Immunol 2023; 14:1223122. [PMID: 37497214 PMCID: PMC10368362 DOI: 10.3389/fimmu.2023.1223122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 06/15/2023] [Indexed: 07/28/2023] Open
Abstract
Introduction In pulmonary hypertension (PH), pulmonary arterial remodeling is often accompanied by perivascular inflammation. The inflammation is characterized by the accumulation of activated macrophages and lymphocytes within the adventitial stroma, which is comprised primarily of fibroblasts. The well-known ability of fibroblasts to secrete interleukins and chemokines has previously been implicated as contributing to this tissue-specific inflammation in PH vessels. We were interested if pulmonary fibroblasts from PH arteries contribute to microenvironmental changes that could activate and polarize T-cells in PH. Methods We used single-cell RNA sequencing of intact bovine distal pulmonary arteries (dPAs) from PH and control animals and flow cytometry, mRNA expression analysis, and respirometry analysis of blood-derived bovine/human T-cells exposed to conditioned media obtained from pulmonary fibroblasts of PH/control animals and IPAH/control patients (CM-(h)PH Fibs vs CM-(h)CO Fibs). Results Single-cell RNA sequencing of intact bovine dPAs from PH and control animals revealed a pro-inflammatory phenotype of CD4+ T-cells and simultaneous absence of regulatory T-cells (FoxP3+ Tregs). By exposing T-cells to CM-(h)PH Fibs we stimulated their proinflammatory differentiation documented by increased IFNγ and decreased IL4, IL10, and TGFβ mRNA and protein expression. Interestingly, we demonstrated a reduction in the number of suppressive T-cell subsets, i.e., human/bovine Tregs and bovine γδ T-cells treated with CM-(h)PH-Fibs. We also noted inhibition of anti-inflammatory cytokine expression (IL10, TGFβ, IL4). Pro-inflammatory polarization of bovine T-cells exposed to CM-PH Fibs correlated with metabolic shift to glycolysis and lactate production with increased prooxidant intracellular status as well as increased proliferation of T-cells. To determine whether metabolic reprogramming of PH-Fibs was directly contributing to the effects of PH-Fibs conditioned media on T-cell polarization, we treated PH-Fibs with the HDAC inhibitor SAHA, which was previously shown to normalize metabolic status and examined the effects of the conditioned media. We observed significant suppression of inflammatory polarization associated with decreased T-cell proliferation and recovery of mitochondrial energy metabolism. Conclusion This study demonstrates how the pulmonary fibroblast-derived microenvironment can activate and differentiate T-cells to trigger local inflammation, which is part of the vascular wall remodeling process in PH.
Collapse
Affiliation(s)
- Lydie Plecitá-Hlavatá
- Laboratory of Pancreatic Islet Research, Institute of Physiology, Czech Academy of Sciences, Prague, Czechia
| | - Andrea Brázdová
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czechia
- Department of Genetics and Microbiology, Faculty of Science, Charles University, Prague, Czechia
| | - Monika Křivonosková
- Laboratory of Pancreatic Islet Research, Institute of Physiology, Czech Academy of Sciences, Prague, Czechia
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czechia
| | - Cheng-Jun Hu
- Department of Craniofacial Biology School of Dental Medicine, University of Colorado, Aurora, CO, United States
- Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado, Aurora, CO, United States
| | - Tzu Phang
- Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado, Aurora, CO, United States
| | - Jan Tauber
- Laboratory of Mitochondrial Physiology, Institute of Physiology, Czech Academy of Sciences, Prague, Czechia
| | - Min Li
- Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado, Aurora, CO, United States
| | - Hui Zhang
- Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado, Aurora, CO, United States
| | | | - Slaven Crnkovic
- Otto Loewi Research Center, Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Institute for Lung Health, Member of the German Lung Center, Giessen, Germany
| | - Grazyna Kwapiszewska
- Otto Loewi Research Center, Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Institute for Lung Health, Member of the German Lung Center, Giessen, Germany
| | - Kurt R. Stenmark
- Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado, Aurora, CO, United States
| |
Collapse
|
3
|
Batool R, Khan MR, Ijaz MU, Naz I, Batool A, Ali S, Zahra Z, Gul S, Uddin MN, Kazi M, Khan R. Linum corymbulosum Protects Rats against CCl 4-Induced Hepatic Injuries through Modulation of an Unfolded Protein Response Pathway and Pro-Inflammatory Intermediates. Molecules 2023; 28:2257. [PMID: 36903503 PMCID: PMC10004795 DOI: 10.3390/molecules28052257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/08/2023] [Accepted: 02/15/2023] [Indexed: 03/05/2023] Open
Abstract
Liver fibrosis is a major pathological feature of chronic liver disease and effective therapies are limited at present. The present study focuses on the hepatoprotective potential of L. corymbulosum against carbon tetrachloride (CCl4)-induced liver damage in rats. Analysis of Linum corymbulosum methanol extract (LCM) using high-performance liquid chromatography (HPLC) revealed the presence of rutin, apigenin, catechin, caffeic acid and myricetin. CCl4 administration lowered (p < 0.01) the activities of antioxidant enzymes and reduced glutathione (GSH) content as well as soluble proteins, whereas the concentration of H2O2, nitrite and thiobarbituric acid reactive substances was higher in hepatic samples. In serum, the level of hepatic markers and total bilirubin was elevated followed by CCl4 administration. The expression of glucose-regulated protein (GRP78), x-box binding protein-1 total (XBP-1 t), x-box binding protein-1 spliced (XBP-1 s), x-box binding protein-1 unspliced (XBP-1 u) and glutamate-cysteine ligase catalytic subunit (GCLC) was enhanced in CCl4-administered rats. Similarly, the expression of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and monocyte chemo attractant protein-1 (MCP-1) was strongly increased with CCl4 administration to rats. Co-administration of LCM along with CCl4 to rats lowered (p < 0.05) the expression of the above genes. Histopathology of the liver showed hepatocyte injury, leukocyte infiltration and damaged central lobules in CCl4-treated rats. However, LCM administration to CCl4-intoxicated rats restored the altered parameters towards the levels of control rats. These outcomes indicate the existence of antioxidant and anti-inflammatory constituents in the methanol extract of L. corymbulosum.
Collapse
Affiliation(s)
- Riffat Batool
- Directorate of BASR, Allama Iqbal Open University, Islamabad 44310, Pakistan
| | - Muhammad Rashid Khan
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Muhammad Umar Ijaz
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad 38040, Pakistan
| | - Irum Naz
- Department of Biochemistry, Institute of Biochemistry, Biotechnology and Bioinformatics, Faculty of Chemical and Biological Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Afsheen Batool
- Faculty RMU & Allied Hospitals, Rawalpindi Medical University and Allied Hospital, Rawalpindi 46000, Pakistan
| | - Saima Ali
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Zartash Zahra
- Gujrat Institute of Management Sciences, Peer Mehar Ali Shah Arid Agriculture University, Gujrat 50700, Pakistan
| | - Safia Gul
- Department of Botany, Sardar Bahadur Khan Women’s University Quetta, Quetta 87300, Pakistan
| | - Mohammad N. Uddin
- College of Pharmacy, Mercer University, 3001 Mercer University Drive, Atlanta, GA 30341, USA
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Raees Khan
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| |
Collapse
|
4
|
Della Camera G, Liu T, Yang W, Li Y, Puntes VF, Gioria S, Italiani P, Boraschi D. Induction of Innate Memory in Human Monocytes Exposed to Mixtures of Bacterial Agents and Nanoparticles. Int J Mol Sci 2022; 23:ijms232314655. [PMID: 36498992 PMCID: PMC9738562 DOI: 10.3390/ijms232314655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022] Open
Abstract
We assessed whether concomitant exposure of human monocytes to bacterial agents and different engineered nanoparticles can affect the induction of protective innate memory, an immune mechanism that affords better resistance to diverse threatening challenges. Monocytes were exposed in vitro to nanoparticles of different chemical nature, shape and size either alone or admixed with LPS, and cell activation was assessed in terms of production of inflammatory (TNFα, IL-6) and anti-inflammatory cytokines (IL-10, IL-1Ra). After return to baseline conditions, cells were re-challenged with LPS and their secondary "memory" response measured. Results show that nanoparticles alone are essentially unable to generate memory, while LPS induced a tolerance memory response (less inflammatory cytokines, equal or increased anti-inflammatory cytokines). LPS-induced tolerance was not significantly affected by the presence of nanoparticles during the memory generation phase, although with substantial donor-to-donor variability. This suggests that, despite the overall lack of significant effects on LPS-induced innate memory, nanoparticles may have donor-specific effects. Thus, future nanosafety assessment and nanotherapeutic strategies will need a personalized approach in order to ensure both the safety and efficacy of nano medical compounds for individual patients.
Collapse
Affiliation(s)
- Giacomo Della Camera
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), 80131 Napoli, Italy
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy
| | - Tinghao Liu
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
- China-Italy Joint Laboratory of Pharmacobiotechnology for Medical Immunomodulation (CNR, SIAT, SZN), SIAT, CAS, Shenzhen 518055, China
| | - Wenjie Yang
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
- China-Italy Joint Laboratory of Pharmacobiotechnology for Medical Immunomodulation (CNR, SIAT, SZN), SIAT, CAS, Shenzhen 518055, China
| | - Yang Li
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
- China-Italy Joint Laboratory of Pharmacobiotechnology for Medical Immunomodulation (CNR, SIAT, SZN), SIAT, CAS, Shenzhen 518055, China
| | - Victor F. Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) and The Barcelona Institute of Science and Technology (BIST), 08036 Barcelona, Spain
- Vall d’Hebron Research Institute (VHIR), 08035 Barcelona, Spain
- Institució Catalana de Recerca I Estudis Avançats (ICREA), 08193 Barcelona, Spain
| | - Sabrina Gioria
- European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy
| | - Paola Italiani
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), 80131 Napoli, Italy
- Stazione Zoologica Anton Dohrn (SZN), 80121 Napoli, Italy
- China-Italy Joint Laboratory of Pharmacobiotechnology for Medical Immunomodulation (CNR, SIAT, SZN), IBBC, CNR, 80131 Napoli, Italy
| | - Diana Boraschi
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), 80131 Napoli, Italy
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China
- China-Italy Joint Laboratory of Pharmacobiotechnology for Medical Immunomodulation (CNR, SIAT, SZN), SIAT, CAS, Shenzhen 518055, China
- Stazione Zoologica Anton Dohrn (SZN), 80121 Napoli, Italy
- China-Italy Joint Laboratory of Pharmacobiotechnology for Medical Immunomodulation (CNR, SIAT, SZN), IBBC, CNR, 80131 Napoli, Italy
- Correspondence:
| |
Collapse
|
5
|
Murugesu S, Selamat J, Perumal V. Phytochemistry, Pharmacological Properties, and Recent Applications of Ficus benghalensis and Ficus religiosa. PLANTS (BASEL, SWITZERLAND) 2021; 10:2749. [PMID: 34961220 PMCID: PMC8707271 DOI: 10.3390/plants10122749] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 05/23/2023]
Abstract
Ficus is one of the largest genera in the plant kingdom that belongs to the Moraceae family. This review aimed to summarize the medicinal uses, phytochemistry, and pharmacological actions of two major species from this genus, namely Ficus benghalensis and Ficus religiosa. These species can be found abundantly in most Asian countries, including Malaysia. The chemical analysis report has shown that Ficus species contained a wide range of phytoconstituents, including phenols, flavonoids, alkaloids, tannins, saponins, terpenoids, glycosides, sugar, protein, essential and volatile oils, and steroids. Existing studies on the pharmacological functions have revealed that the observed Ficus species possessed a broad range of biological properties, including antioxidants, antidiabetic, anti-inflammatory, anticancer, antitumor and antiproliferative, antimutagenic, antimicrobial, anti-helminthic, hepatoprotective, wound healing, anticoagulant, immunomodulatory activities, antistress, toxicity studies, and mosquitocidal effects. Apart from the plant parts and their extracts, the endophytes residing in these host plants were discussed as well. This study also includes the recent applications of the Ficus species and their plant parts, mainly in the nanotechnology field. Various search engines and databases were used to obtain the scientific findings, including Google Scholar, ScienceDirect, PMC, Research Gate, and Scopus. Overall, the review discusses the therapeutic potentials discovered in recent times and highlights the research gaps for prospective research work.
Collapse
Affiliation(s)
- Suganya Murugesu
- Institute of Tropical Agriculture and Food Security (ITAFoS), Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | - Jinap Selamat
- Institute of Tropical Agriculture and Food Security (ITAFoS), Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Vikneswari Perumal
- Faculty of Pharmacy & Health Sciences, University of Kuala Lumpur Royal College of Medicine Perak, Ipoh 30450, Perak, Malaysia;
| |
Collapse
|
6
|
Ouyang C, Li Y, Rees TW, Liao X, Jia J, Chen Y, Zhang X, Ji L, Chao H. Supramolecular Assembly of An Organoplatinum(II) Complex with Ratiometric Dual Emission for Two‐Photon Bioimaging. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Cheng Ouyang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Yongguang Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Thomas W. Rees
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Xinxing Liao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Jianhua Jia
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Yu Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Xiting Zhang
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong S.A.R. P. R. China
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
- MOE Key Laboratory of Theoretical Organic Chemistry and Functional Molecule School of Chemistry and Chemical Engineering Hunan University of Science and Technology Xiangtan 400201 P. R. China
| |
Collapse
|
7
|
Ouyang C, Li Y, Rees TW, Liao X, Jia J, Chen Y, Zhang X, Ji L, Chao H. Supramolecular Assembly of An Organoplatinum(II) Complex with Ratiometric Dual Emission for Two-Photon Bioimaging. Angew Chem Int Ed Engl 2021; 60:4150-4157. [PMID: 33174359 DOI: 10.1002/anie.202014043] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Indexed: 12/18/2022]
Abstract
The organoplatinum(II) complex [Pt(C^N^N)(Cl)] (C^N^N=5,6-diphenyl-2,2'-bipyridine, Pt1) can assemble into nanoaggregates via π-π stacking and complementary hydrogen bonds, rather than Pt-Pt interactions. Pt1 exhibits ratiometric dual emission, including rare blue emission (λem =445 nm) and assembly-induced yellow emission (λem =573 nm), under one- and two-photon excitation. Pt1 displays blue emission in cells with an intact membrane due to its low cellular uptake. In cells where the membrane is disrupted, uptake of the complex is increased and at higher concentrations yellow emission is observed. The ratio of yellow to blue emission shows a linear relationship to the loss of cell membrane integrity. Pt1 is, to our knowledge, the first example of an assembly-induced two-photon ratiometric dual emission organoplatinum complex. The excellent and unique characteristics of the complex enabled its use for the tracking of cell apoptosis, necrosis, and the inflammation process in zebrafish.
Collapse
Affiliation(s)
- Cheng Ouyang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yongguang Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Thomas W Rees
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Xinxing Liao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jianhua Jia
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yu Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Xiting Zhang
- Department of Chemistry, University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., P. R. China
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
- MOE Key Laboratory of Theoretical Organic Chemistry and Functional Molecule, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 400201, P. R. China
| |
Collapse
|
8
|
Ordovas-Montanes J, Beyaz S, Rakoff-Nahoum S, Shalek AK. Distribution and storage of inflammatory memory in barrier tissues. Nat Rev Immunol 2020; 20:308-320. [PMID: 32015472 PMCID: PMC7547402 DOI: 10.1038/s41577-019-0263-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2019] [Indexed: 12/17/2022]
Abstract
Memories of previous immune events enable barrier tissues to rapidly recall distinct environmental exposures. To effectively inform future responses, these past experiences can be stored in cell types that are long-term residents or essential constituents of tissues. There is an emerging understanding that, in addition to antigen-specific immune cells, diverse haematopoietic, stromal, parenchymal and neuronal cell types can store inflammatory memory. Here, we explore the impact of previous immune activity on various cell lineages with the goal of presenting a unified view of inflammatory memory to environmental exposures (such as allergens, antigens, noxious agents and microorganisms) at barrier tissues. We propose that inflammatory memory is distributed across diverse cell types and stored through shifts in cell states, and we provide a framework to guide future experiments. This distribution and storage may promote adaptation or maladaptation in homeostatic, maintenance and disease settings - especially if the distribution of memory favours cellular cooperation during storage or recall.
Collapse
Affiliation(s)
- Jose Ordovas-Montanes
- Division of Gastroenterology, Boston Children's Hospital, Boston, MA, USA.
- Institute for Medical Engineering and Science (IMES), MIT, Cambridge, MA, USA.
- Department of Chemistry, MIT, Cambridge, MA, USA.
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA.
- Harvard Stem Cell Institute, Cambridge, MA, USA.
| | - Semir Beyaz
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - Seth Rakoff-Nahoum
- Division of Gastroenterology, Boston Children's Hospital, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Division of Infectious Diseases, Boston Children's Hospital, Boston, MA, USA
| | - Alex K Shalek
- Institute for Medical Engineering and Science (IMES), MIT, Cambridge, MA, USA
- Department of Chemistry, MIT, Cambridge, MA, USA
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Harvard Stem Cell Institute, Cambridge, MA, USA
- Harvard-MIT Division of Health Sciences & Technology, Cambridge, MA, USA
| |
Collapse
|
9
|
Dovedytis M, Liu ZJ, Bartlett S. Hyaluronic acid and its biomedical applications: A review. ENGINEERED REGENERATION 2020. [DOI: 10.1016/j.engreg.2020.10.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
|
10
|
Mo SJ, Zhang W, Liu JQ, Chen MH, Xu L, Hong J, Li Q, Yang XH, Sun RH, Hu BC. Regulation of Fn14 stability by SCFFbxw7α during septic acute kidney injury. Am J Physiol Renal Physiol 2019; 316:F1273-F1281. [PMID: 31017010 DOI: 10.1152/ajprenal.00627.2018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Acute kidney injury (AKI) initiated by sepsis remains a thorny problem despite recent advancements in its clinical management. Having been found to be activated during AKI, fibroblast growth factor-inducible molecule 14 (Fn14) may be a potential therapeutic target because of its involvement in the molecular basis of injury. Here, we report that LPS induces apoptosis of mouse cortical tubule cells mediated by Fn14, for which simultaneous Toll-like receptor (TLR)4 activation is required. Mechanistically, TLR4 activation by lipopolysaccharide, through disassociating E3 ligase SCFFbxw7α from Fn14, dismantles Lys48-linked polyubiquitination of Fn14 and stabilizes it. Pharmacological deactivation of Fn14 with monoclonal antibody ITEM-2 provides effective protection against lethal sepsis and AKI in mice. Our study underscores an adaptive mechanism whereby TLR4 regulates SCFFbxw7α-dependent Fn14 stabilization during inflammatory tubular damage and further supports investigation of targeting Fn14 in clinical trials of patients with septic AKI.
Collapse
Affiliation(s)
- Shi-Jing Mo
- Department of Intensive Care Unit, Zhejiang Provincial People's Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Wei Zhang
- Department of Intensive Care Unit, Zhejiang Provincial People's Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jing-Quan Liu
- Department of Intensive Care Unit, Zhejiang Provincial People's Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Min-Hua Chen
- Department of Intensive Care Unit, Zhejiang Provincial People's Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Liang Xu
- Department of Intensive Care Unit, Zhejiang Provincial People's Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jun Hong
- Department of Intensive Care Unit, Zhejiang Provincial People's Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Qian Li
- Department of Intensive Care Unit, Zhejiang Provincial People's Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Xiang-Hong Yang
- Department of Intensive Care Unit, Zhejiang Provincial People's Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Ren-Hua Sun
- Department of Intensive Care Unit, Zhejiang Provincial People's Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Bang-Chuan Hu
- Department of Intensive Care Unit, Zhejiang Provincial People's Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, China
| |
Collapse
|
11
|
Crowley T, Buckley CD, Clark AR. Stroma: the forgotten cells of innate immune memory. Clin Exp Immunol 2018; 193:24-36. [PMID: 29729109 PMCID: PMC6038004 DOI: 10.1111/cei.13149] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 05/01/2018] [Accepted: 05/01/2018] [Indexed: 12/20/2022] Open
Abstract
All organisms are exposed constantly to a variety of infectious and injurious stimuli. These induce inflammatory responses tailored to the threat posed. While the innate immune system is the front line of response to each stimulant, it has been considered traditionally to lack memory, acting in a generic fashion until the adaptive immune arm can take over. This outmoded simplification of the roles of innate and acquired arms of the immune system has been challenged by evidence of myeloid cells altering their response to subsequent encounters based on earlier exposure. This concept of 'innate immune memory' has been known for nearly a century, and is accepted among myeloid biologists. In recent years other innate immune cells, such as natural killer cells, have been shown to display memory, suggesting that innate immune memory is a trait common to several cell types. During the last 30 years, evidence has slowly accumulated in favour of not only haematopoietic cells, but also stromal cells, being imbued with memory following inflammatory episodes. A recent publication showing this also to be true in epithelial cells suggests innate immune memory to be widespread, if under-appreciated, in non-haematopoietic cells. In this review, we will examine the evidence supporting the existence of innate immune memory in stromal cells. We will also discuss the ramifications of memory in long-lived tissue-resident cells. Finally, we will pose questions we feel to be important in the understanding of these forgotten cells in the field of innate memory.
Collapse
Affiliation(s)
- T. Crowley
- Institute of Inflammation and Ageing, College of Medical and Dental SciencesUniversity of BirminghamBirmingham, UK
| | - C. D. Buckley
- Institute of Inflammation and Ageing, College of Medical and Dental SciencesUniversity of BirminghamBirmingham, UK
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UKUniversity of OxfordOxfordUK
| | - A. R. Clark
- Institute of Inflammation and Ageing, College of Medical and Dental SciencesUniversity of BirminghamBirmingham, UK
| |
Collapse
|
12
|
Therapies for genetic extracellular matrix diseases of the skin. Matrix Biol 2017; 71-72:330-347. [PMID: 29274938 DOI: 10.1016/j.matbio.2017.12.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 12/15/2017] [Accepted: 12/19/2017] [Indexed: 12/26/2022]
Abstract
A specialized, highly developed dermal extracellular matrix (ECM) provides the skin with its unique mechano-resilient properties and is vital for organ function. Accordingly, genetically acquired deficiency of dermal ECM proteins or proteins essential for the post-translational modification and homeostasis of the dermal ECM, results in diseases affecting the skin. Some of these diseases are lethal or lead to severe complications for the affected individuals. At present limited efficient and evidence-based treatment options exist for genetic ECM diseases of the skin. There is thus a high unmet medical need, creating an urgent demand to develop improved care for these diseases. Here, by drawing examples from the wealth of research on epidermolysis bullosa, we present the current status of biological and small molecule therapies for genetic ECM diseases with skin manifestations. We discuss challenges, and using existing data to propose strategies and future directions allowing development of more efficacious therapies and advancement of them into clinical practice.
Collapse
|
13
|
VanHook AM. Papers of note in
Nature
550
(7677). Sci Signal 2017. [DOI: 10.1126/scisignal.aar3249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
This week’s articles highlight inflammatory memory in epithelial stem cells; ubiquitin-specific protease inhibitors that target cancer cells; the identification of a sphingosine 1-phosphate exporter; and G protein signaling hotspots on the plasma membrane.
Collapse
|