1
|
Alhamdan F, Bayarsaikhan G, Yuki K. Toll-like receptors and integrins crosstalk. Front Immunol 2024; 15:1403764. [PMID: 38915411 PMCID: PMC11194410 DOI: 10.3389/fimmu.2024.1403764] [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: 03/19/2024] [Accepted: 05/24/2024] [Indexed: 06/26/2024] Open
Abstract
Immune system recognizes invading microbes at both pathogen and antigen levels. Toll-like receptors (TLRs) play a key role in the first-line defense against pathogens. Major functions of TLRs include cytokine and chemokine production. TLRs share common downstream signaling pathways with other receptors. The crosstalk revolving around TLRs is rather significant and complex, underscoring the intricate nature of immune system. The profiles of produced cytokines and chemokines via TLRs can be affected by other receptors. Integrins are critical heterodimeric adhesion molecules expressed on many different cells. There are studies describing synergetic or inhibitory interplay between TLRs and integrins. Thus, we reviewed the crosstalk between TLRs and integrins. Understanding the nature of the crosstalk could allow us to modulate TLR functions via integrins.
Collapse
Affiliation(s)
- Fahd Alhamdan
- Department of Anesthesiology, Critical Care and Pain Medicine, Cardiac Anesthesia, Boston Children’s Hospital, Boston, MA, United States
- Department of Anesthesia and Immunology, Harvard Medical School, Boston, MA, United States
- Broad Institute of MIT and Harvard, Cambridge, MA, United States
| | - Ganchimeg Bayarsaikhan
- Department of Anesthesiology, Critical Care and Pain Medicine, Cardiac Anesthesia, Boston Children’s Hospital, Boston, MA, United States
- Department of Anesthesia and Immunology, Harvard Medical School, Boston, MA, United States
- Broad Institute of MIT and Harvard, Cambridge, MA, United States
| | - Koichi Yuki
- Department of Anesthesiology, Critical Care and Pain Medicine, Cardiac Anesthesia, Boston Children’s Hospital, Boston, MA, United States
- Department of Anesthesia and Immunology, Harvard Medical School, Boston, MA, United States
- Broad Institute of MIT and Harvard, Cambridge, MA, United States
| |
Collapse
|
2
|
Ta HQ, Kuppusamy M, Sonkusare SK, Roeser ME, Laubach VE. The endothelium: gatekeeper to lung ischemia-reperfusion injury. Respir Res 2024; 25:172. [PMID: 38637760 PMCID: PMC11027545 DOI: 10.1186/s12931-024-02776-4] [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: 02/09/2024] [Accepted: 03/14/2024] [Indexed: 04/20/2024] Open
Abstract
The success of lung transplantation is limited by the high rate of primary graft dysfunction due to ischemia-reperfusion injury (IRI). Lung IRI is characterized by a robust inflammatory response, lung dysfunction, endothelial barrier disruption, oxidative stress, vascular permeability, edema, and neutrophil infiltration. These events are dependent on the health of the endothelium, which is a primary target of IRI that results in pulmonary endothelial barrier dysfunction. Over the past 10 years, research has focused more on the endothelium, which is beginning to unravel the multi-factorial pathogenesis and immunologic mechanisms underlying IRI. Many important proteins, receptors, and signaling pathways that are involved in the pathogenesis of endothelial dysfunction after IR are starting to be identified and targeted as prospective therapies for lung IRI. In this review, we highlight the more significant mediators of IRI-induced endothelial dysfunction discovered over the past decade including the extracellular glycocalyx, endothelial ion channels, purinergic receptors, kinases, and integrins. While there are no definitive clinical therapies currently available to prevent lung IRI, we will discuss potential clinical strategies for targeting the endothelium for the treatment or prevention of IRI. The accruing evidence on the essential role the endothelium plays in lung IRI suggests that promising endothelial-directed treatments may be approaching the clinic soon. The application of therapies targeting the pulmonary endothelium may help to halt this rapid and potentially fatal injury.
Collapse
Affiliation(s)
- Huy Q Ta
- Department of Surgery, University of Virginia, P. O. Box 801359, Charlottesville, VA, 22908, USA
| | - Maniselvan Kuppusamy
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, 22908, USA
| | - Swapnil K Sonkusare
- Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, 22908, USA
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, 22908, USA
| | - Mark E Roeser
- Department of Surgery, University of Virginia, P. O. Box 801359, Charlottesville, VA, 22908, USA
| | - Victor E Laubach
- Department of Surgery, University of Virginia, P. O. Box 801359, Charlottesville, VA, 22908, USA.
| |
Collapse
|
3
|
Lin X, Huang S, Gao S, Liu J, Tang J, Yu M. Integrin β5 subunit regulates hyperglycemia-induced vascular endothelial cell apoptosis through FoxO1-mediated macroautophagy. Chin Med J (Engl) 2024; 137:565-576. [PMID: 37500497 DOI: 10.1097/cm9.0000000000002769] [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: 01/25/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Hyperglycemia frequently induces apoptosis in endothelial cells and ultimately contributes to microvascular dysfunction in patients with diabetes mellitus (DM). Previous research reported that the expression of integrins as well as their ligands was elevated in the diseased vessels of DM patients. However, the association between integrins and hyperglycemia-induced cell death is still unclear. This research was designed to investigate the role played by integrin subunit β5 (ITGB5) in hyperglycemia-induced endothelial cell apoptosis. METHODS We used leptin receptor knockout (Lepr-KO) ( db / db ) mice as spontaneous diabetes animal model. Selective deletion of ITGB5 in endothelial cell was achieved by injecting vascular targeted adeno-associated virus via tail vein. Besides, we also applied small interfering RNA in vitro to study the mechanism of ITGB5 in regulating high glucose-induced cell apoptosis. RESULTS ITGB5 and its ligand, fibronectin, were both upregulated after exposure to high glucose in vivo and in vitro . ITGB5 knockdown alleviated hyperglycemia-induced vascular endothelial cell apoptosis and microvascular rarefaction in vivo.In vitro analysis revealed that knockdown of either ITGB5 or fibronectin ameliorated high glucose-induced apoptosis in human umbilical vascular endothelial cells (HUVECs). In addition, knockdown of ITGB5 inhibited fibronectin-induced HUVEC apoptosis, which indicated that the fibronectin-ITGB5 interaction participated in high glucose-induced endothelial cell apoptosis. By using RNA-sequencing technology and bioinformatic analysis, we identified Forkhead Box Protein O1 (FoxO1) as an important downstream target regulated by ITGB5. Moreover, we demonstrated that the excessive macroautophagy induced by high glucose can contribute to HUVEC apoptosis, which was regulated by the ITGB5-FoxO1 axis. CONCLUSION The study revealed that high glucose-induced endothelial cell apoptosis was positively regulated by ITGB5, which suggested that ITGB5 could potentially be used to predict and treat DM-related vascular complications.
Collapse
Affiliation(s)
- Xuze Lin
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - Sizhuang Huang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - Side Gao
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - Jinxing Liu
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - Jiong Tang
- Department of Cardiology, Fuwai Yunnan Cardiovascular Hospital, Kunming, Yunnan 650000, China
| | - Mengyue Yu
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| |
Collapse
|
4
|
Li Q, Nie H. Advances in lung ischemia/reperfusion injury: unraveling the role of innate immunity. Inflamm Res 2024; 73:393-405. [PMID: 38265687 DOI: 10.1007/s00011-023-01844-7] [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: 10/18/2023] [Revised: 12/03/2023] [Accepted: 12/18/2023] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Lung ischemia/reperfusion injury (LIRI) is a common occurrence in clinical practice and represents a significant complication following pulmonary transplantation and various diseases. At the core of pulmonary ischemia/reperfusion injury lies sterile inflammation, where the innate immune response plays a pivotal role. This review aims to investigate recent advancements in comprehending the role of innate immunity in LIRI. METHODS A computer-based online search was performed using the PubMed database and Web of Science database for published articles concerning lung ischemia/reperfusion injury, cell death, damage-associated molecular pattern molecules (DAMPs), innate immune cells, innate immunity, inflammation. RESULTS During the process of lung ischemia/reperfusion, cellular injury even death can occur. When cells are injured or undergo cell death, endogenous ligands known as DAMPs are released. These molecules can be recognized and bound by pattern recognition receptors (PRRs), leading to the recruitment and activation of innate immune cells. Subsequently, a cascade of inflammatory responses is triggered, ultimately exacerbating pulmonary injury. These steps are complex and interrelated rather than being in a linear relationship. In recent years, significant progress has been made in understanding the immunological mechanisms of LIRI, involving novel types of cell death, the ability of receptors other than PRRs to recognize DAMPs, and a more detailed mechanism of action of innate immune cells in ischemia/reperfusion injury (IRI), laying the groundwork for the development of novel diagnostic and therapeutic approaches. CONCLUSIONS Various immune components of the innate immune system play critical roles in lung injury after ischemia/reperfusion. Preventing cell death and the release of DAMPs, interrupting DAMPs receptor interactions, disrupting intracellular inflammatory signaling pathways, and minimizing immune cell recruitment are essential for lung protection in LIRI.
Collapse
Affiliation(s)
- Qingqing Li
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuchang District, Wuhan, 430060, China
| | - Hanxiang Nie
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuchang District, Wuhan, 430060, China.
| |
Collapse
|
5
|
Lin P, Gao R, Fang Z, Yang W, Tang Z, Wang Q, Wu Y, Fang J, Yu W. Precise nanodrug delivery systems with cell-specific targeting for ALI/ARDS treatment. Int J Pharm 2023; 644:123321. [PMID: 37591476 DOI: 10.1016/j.ijpharm.2023.123321] [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: 05/18/2023] [Revised: 07/22/2023] [Accepted: 08/14/2023] [Indexed: 08/19/2023]
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are common acute and critical diseases in clinics and have no effective treatment to date. With the concept of "precision medicine", research into the precise drug delivery of therapeutic and diagnostic drugs has become a frontier in nanomedicine research and has entered the era of design of precise nanodrug delivery systems (NDDSs) with cell-specific targeting. Owing to the distinctive characteristics of ALI/ARDS, designing NDDSs for specific focal sites is an important strategy for changing drug distribution in the body and specifically increasing drug concentration at target sites while decreasing drug concentration at non-target sites. This strategy enhances drug efficacy, reduces adverse reactions, and ensures accurate nano-targeted treatment. On the basis of the characteristics of pathological ALI/ARDS microenvironments, this paper reviews NDDSs targeting vascular endothelial cells, neutrophils, alveolar macrophages, and alveolar epithelial cells to provide reference for designing accurate NDDSs for ALI/ARDS and novel insights into targeted treatments for ALI/ARDS.
Collapse
Affiliation(s)
- Peihong Lin
- School of Pharmacy, Hangzhou Medical College, Hangzhou 310013, China
| | - Rui Gao
- School of Pharmacy, Hangzhou Medical College, Hangzhou 310013, China
| | - Zhengyu Fang
- School of Pharmacy, Hangzhou Medical College, Hangzhou 310013, China
| | - Wenjing Yang
- School of Pharmacy, Hangzhou Medical College, Hangzhou 310013, China
| | - Zhan Tang
- School of Pharmacy, Hangzhou Medical College, Hangzhou 310013, China
| | - Qiao Wang
- School of Pharmacy, Hangzhou Medical College, Hangzhou 310013, China
| | - Yueguo Wu
- School of Pharmacy, Hangzhou Medical College, Hangzhou 310013, China
| | - Jie Fang
- Zhejiang Provincial Laboratory of Experimental Animal's & Nonclinical Laboratory Studies, Hangzhou Medical College, Hangzhou 310013, China.
| | - Wenying Yu
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Hangzhou Medical College, Hangzhou 310013, China.
| |
Collapse
|
6
|
Blanchard N, Link PA, Farkas D, Harmon B, Hudson J, Bogamuwa S, Piper B, Authelet K, Cool CD, Heise RL, Freishtat R, Farkas L. Dichotomous role of integrin-β5 in lung endothelial cells. Pulm Circ 2022; 12:e12156. [PMID: 36438452 PMCID: PMC9684688 DOI: 10.1002/pul2.12156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 10/17/2022] [Accepted: 11/07/2022] [Indexed: 11/10/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive, devastating disease, and its main histological manifestation is an occlusive pulmonary arteriopathy. One important functional component of PAH is aberrant endothelial cell (EC) function including apoptosis-resistance, unchecked proliferation, and impaired migration. The mechanisms leading to and maintaining physiologic and aberrant EC function are not fully understood. Here, we tested the hypothesis that in PAH, ECs have increased expression of the transmembrane protein integrin-β5, which contributes to migration and survival under physiologic and pathological conditions, but also to endothelial-to-mesenchymal transition (EnMT). We found that elevated integrin-β5 expression in pulmonary artery lesions and lung tissue from PAH patients and rats with PH induced by chronic hypoxia and injection of CD117+ rat lung EC clones. These EC clones exhibited elevated expression of integrin-β5 and its heterodimerization partner integrin-αν and showed accelerated barrier formation. Inhibition of integrin-ανβ5 in vitro partially blocked transforming growth factor (TGF)-β1-induced EnMT gene expression in rat lung control ECs and less in rat lung EC clones and human lung microvascular ECs. Inhibition of integrin-ανβ5 promoted endothelial dysfunction as shown by reduced migration in a scratch assay and increased apoptosis in synergism with TGF-β1. In vivo, blocking of integrin-ανβ5 exaggerated PH induced by chronic hypoxia and CD117+ EC clones in rats. In summary, we found a role for integrin-ανβ5 in lung endothelial survival and migration, but also a partial contribution to TGF-β1-induced EnMT gene expression. Our results suggest that integrin-ανβ5 is required for physiologic function of ECs and lung vascular homeostasis.
Collapse
Affiliation(s)
- Neil Blanchard
- Department of Orthopedic SurgeryUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Patrick A. Link
- Departments of Physiology and Biomedical EngineeringMayo ClinicRochesterMichiganUSA
- Department of Biomedical Engineering, School of EngineeringVirginia Commonwealth UniversityCharlottesvilleVirginiaUSA
| | - Daniela Farkas
- Division of Pulmonary Disease, College of Medicine, Department of Internal Medicine, Critical Care & Sleep Medicine, Davis Heart and Lung Research InstituteThe Ohio State University Wexner Medical CenterColumbusOhioUSA
| | - Brennan Harmon
- Department of Pediatrics, Division of Emergency MedicineChildren's National Health SystemWashingtonDistrict of ColumbiaUSA
| | - Jaylen Hudson
- Division of Pulmonary Disease, College of Medicine, Department of Internal Medicine, Critical Care & Sleep Medicine, Davis Heart and Lung Research InstituteThe Ohio State University Wexner Medical CenterColumbusOhioUSA
| | - Srimathi Bogamuwa
- Division of Pulmonary Disease, College of Medicine, Department of Internal Medicine, Critical Care & Sleep Medicine, Davis Heart and Lung Research InstituteThe Ohio State University Wexner Medical CenterColumbusOhioUSA
| | - Bryce Piper
- Division of Pulmonary Disease, College of Medicine, Department of Internal Medicine, Critical Care & Sleep Medicine, Davis Heart and Lung Research InstituteThe Ohio State University Wexner Medical CenterColumbusOhioUSA
| | - Kayla Authelet
- Department of Pediatrics, Division of Emergency MedicineChildren's National Health SystemWashingtonDistrict of ColumbiaUSA
| | - Carlyne D. Cool
- Department of PathologyUniversity of Colorado at DenverDenverColoradoUSA
| | - Rebecca L. Heise
- Department of Biomedical Engineering, School of EngineeringVirginia Commonwealth UniversityCharlottesvilleVirginiaUSA
| | - Robert Freishtat
- Department of Pediatrics, Division of Emergency MedicineChildren's National Health SystemWashingtonDistrict of ColumbiaUSA
| | - Laszlo Farkas
- Division of Pulmonary Disease, College of Medicine, Department of Internal Medicine, Critical Care & Sleep Medicine, Davis Heart and Lung Research InstituteThe Ohio State University Wexner Medical CenterColumbusOhioUSA
- Department of Physiology and BiophysicsVirginia Commonwealth UniversityRichmondVirginiaUSA
| |
Collapse
|
7
|
Li C, Wang M, Wang W, Li Y, Zhang D. Autophagy regulates the effects of ADSC-derived small extracellular vesicles on acute lung injury. Respir Res 2022; 23:151. [PMID: 35681240 PMCID: PMC9185906 DOI: 10.1186/s12931-022-02073-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 05/31/2022] [Indexed: 11/16/2022] Open
Abstract
Small extracellular vesicles (sEVs) have been recognized to be more effective than direct stem cell differentiation into functional target cells in preventing tissue injury and promoting tissue repair. Our previous study demonstrated the protective effect of adipose-derived stem cells (ADSCs) on lipopolysaccharide (LPS)-induced acute lung injury and the effect of autophagy on ADSC functions, but the role of ADSC-derived sEVs (ADSC-sEVs) and autophagy-mediated regulation of ADSC-sEVs in LPS-induced pulmonary microvascular barrier damage remains unclear. After treatment with sEVs from ADSCs with or without autophagy inhibition, LPS-induced human pulmonary microvascular endothelial cell (HPMVECs) barrier damage was detected. LPS-induced acute lung injury in mice was assessed in vivo after intravenous administration of sEVs from ADSCs with or without autophagy inhibition. The effects of autophagy on the bioactive miRNA components of ADSC-sEVs were assessed after prior inhibition of cell autophagy. We found that ADSC-sEV effectively alleviated LPS-induced apoptosis, tight junction damage and high permeability of PMVECs. Moreover, in vivo administration of ADSC-sEV markedly inhibited LPS-triggered lung injury. However, autophagy inhibition, markedly weakened the therapeutic effect of ADSC-sEVs on LPS-induced PMVECs barrier damage and acute lung injury. In addition, autophagy inhibition, prohibited the expression of five specific miRNAs in ADSC-sEVs -under LPS-induced inflammatory conditions. Our results indicate that ADSC-sEVs protect against LPS-induced pulmonary microvascular barrier damage and acute lung injury. Autophagy is a positive mediator of sEVs function, at least in part through controlling the expression of bioactive miRNAs in sEVs.
Collapse
Affiliation(s)
- Chichi Li
- Plastic Surgery Department, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, People's Republic of China
| | - Min Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, People's Republic of China
| | - Wangjia Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, People's Republic of China
| | - Yuping Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, People's Republic of China.
| | - Dan Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, People's Republic of China.
| |
Collapse
|
8
|
Role of tumour-derived exosomes in metastasis. Biomed Pharmacother 2022; 147:112657. [DOI: 10.1016/j.biopha.2022.112657] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/15/2022] [Accepted: 01/18/2022] [Indexed: 12/15/2022] Open
|
9
|
Xie J, Zou Y, Ye F, Zhao W, Xie X, Ou X, Xie X, Wei W. A Novel Platelet-Related Gene Signature for Predicting the Prognosis of Triple-Negative Breast Cancer. Front Cell Dev Biol 2022; 9:795600. [PMID: 35096824 PMCID: PMC8790231 DOI: 10.3389/fcell.2021.795600] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/13/2021] [Indexed: 01/19/2023] Open
Abstract
Regarded as the most invasive subtype, triple-negative breast cancer (TNBC) lacks the expression of estrogen receptors (ERs), progesterone receptors (PRs), and human epidermal growth factor receptor 2 (HER2) proteins. Platelets have recently been shown to be associated with metastasis of malignant tumors. Nevertheless, the status of platelet-related genes in TNBC and their correlation with patient prognosis remain unknown. In this study, the expression and variation levels of platelet-related genes were identified and patients with TNBC were divided into three subtypes. We collected cohorts from The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO) databases. By applying the least absolute shrinkage and selection operator (LASSO) Cox regression method, we constructed a seven-gene signature which classified the two cohorts of patients with TNBC into low- or high-risk groups. Patients in the high-risk group were more likely to have lower survival rates than those in the low-risk group. The risk score, incorporated with the clinical features, was confirmed as an independent factor for predicting the overall survival (OS) time. Functional enrichment analyses revealed the involvement of a variety of vital biological processes and classical cancer-related pathways that could be important to the ultimate prognosis of TNBC. We then built a nomogram that performed well. Moreover, we tested the model in other cohorts and obtained positive outcomes. In conclusion, platelet-related genes were closely related to TNBC, and this novel signature could serve as a tool for the assessment of clinical prognosis.
Collapse
Affiliation(s)
- Jindong Xie
- Department of Breast Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yutian Zou
- Department of Breast Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Feng Ye
- Department of Breast Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Wanzhen Zhao
- Department of Breast Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Radiotherapy, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Xinhua Xie
- Department of Breast Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xueqi Ou
- Department of Breast Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xiaoming Xie
- Department of Breast Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Weidong Wei
- Department of Breast Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| |
Collapse
|
10
|
Ryu SH, Kim C, Kim N, Lee W, Bae JS. Inhibitory functions of cornuside on TGFBIp-mediated septic responses. J Nat Med 2022; 76:451-461. [PMID: 35025027 PMCID: PMC8757402 DOI: 10.1007/s11418-021-01601-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 12/24/2021] [Indexed: 11/29/2022]
Abstract
Transforming growth factor β-induced protein (TGFBIp), as an extracellular matrix protein, is expressed TGF-β in some types of cells. Experimental sepsis is mediated by expressed and released TGFBIp in primary human umbilical vein endothelial cells (HUVECs). Cornuside (CNS) is a bisiridoid glucoside compound found in the fruit of Cornus officinalis SIEB. et ZUCC. Based on the known functions of CNS, such as the immunomodulatory and anti-inflammatory activities, we tested whether TGFBIp-mediated septic responses were suppressed by CNS in human endothelial cells and mice and investigated the underlying anti-septic mechanisms of CNS. Data showed that the secretion of TGFBIp by lipopolysaccharide (LPS) and severe septic responses by TGFBIp were effectively inhibited by CNS. And, TGFBIp-mediated sepsis lethality and pulmonary injury were reduced by CNS. Therefore, the suppression of TGFBIp-mediated septic responses by CNS suggested that CNS may be used as a potential therapeutic agent for several vascular inflammatory diseases, with the inhibition of the TGFBIp signaling pathway as the mechanism of action.
Collapse
Affiliation(s)
- Soo Ho Ryu
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea
| | - Chaeyeong Kim
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea
| | - Nayeon Kim
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea
| | - Wonhwa Lee
- Department of Chemistry, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, 16419, Republic of Korea.
| | - Jong-Sup Bae
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
| |
Collapse
|
11
|
Bieri M, Hendrickx R, Bauer M, Yu B, Jetzer T, Dreier B, Mittl PRE, Sobek J, Plückthun A, Greber UF, Hemmi S. The RGD-binding integrins αvβ6 and αvβ8 are receptors for mouse adenovirus-1 and -3 infection. PLoS Pathog 2021; 17:e1010083. [PMID: 34910784 PMCID: PMC8673666 DOI: 10.1371/journal.ppat.1010083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/01/2021] [Indexed: 12/12/2022] Open
Abstract
Mammalian adenoviruses (AdVs) comprise more than ~350 types including over 100 human (HAdVs) and just three mouse AdVs (MAdVs). While most HAdVs initiate infection by high affinity/avidity binding of their fiber knob (FK) protein to either coxsackievirus AdV receptor (CAR), CD46 or desmoglein (DSG)-2, MAdV-1 (M1) infection requires arginine-glycine-aspartate (RGD) binding integrins. To identify the receptors mediating MAdV infection we generated five novel reporter viruses for MAdV-1/-2/-3 (M1, M2, M3) transducing permissive murine (m) CMT-93 cells, but not B16 mouse melanoma cells expressing mCAR, human (h) CD46 or hDSG-2. Recombinant M1 or M3 FKs cross-blocked M1 and M3 but not M2 infections. Profiling of murine and human cells expressing RGD-binding integrins suggested that αvβ6 and αvβ8 heterodimers are associated with M1 and M3 infections. Ectopic expression of mβ6 in B16 cells strongly enhanced M1 and M3 binding, infection, and progeny production comparable with mαvβ6-positive CMT-93 cells, whereas mβ8 expressing cells were more permissive to M1 than M3. Anti-integrin antibodies potently blocked M1 and M3 binding and infection of CMT-93 cells and hαvβ8-positive M000216 cells. Soluble integrin αvβ6, and synthetic peptides containing the RGDLXXL sequence derived from FK-M1, FK-M3 and foot and mouth disease virus coat protein strongly interfered with M1/M3 infections, in agreement with high affinity interactions of FK-M1/FK-M3 with αvβ6/αvβ8, determined by surface plasmon resonance measurements. Molecular docking simulations of ternary complexes revealed a bent conformation of RGDLXXL-containing FK-M3 peptides on the subunit interface of αvβ6/β8, where the distal leucine residue dips into a hydrophobic pocket of β6/8, the arginine residue ionically engages αv aspartate215, and the aspartate residue coordinates a divalent cation in αvβ6/β8. Together, the RGDLXXL-bearing FKs are part of an essential mechanism for M1/M3 infection engaging murine and human αvβ6/8 integrins. These integrins are highly conserved in other mammals, and may favour cross-species virus transmission.
Collapse
Affiliation(s)
- Manuela Bieri
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
- Molecular Life Sciences Graduate School, ETH and University Of Zurich, Switzerland
| | - Rodinde Hendrickx
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
- Molecular Life Sciences Graduate School, ETH and University Of Zurich, Switzerland
| | - Michael Bauer
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Bin Yu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, China
| | - Tania Jetzer
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Birgit Dreier
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Peer R. E. Mittl
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Jens Sobek
- Functional Genomics Center Zurich, Eidgenössische Technische Hochschule (ETH) Zurich and University of Zurich, Zurich, Switzerland
| | - Andreas Plückthun
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Urs F. Greber
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Silvio Hemmi
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| |
Collapse
|
12
|
Wagener BM, Hu R, Wu S, Pittet JF, Ding Q, Che P. The Role of Pseudomonas aeruginosa Virulence Factors in Cytoskeletal Dysregulation and Lung Barrier Dysfunction. Toxins (Basel) 2021; 13:776. [PMID: 34822560 PMCID: PMC8625199 DOI: 10.3390/toxins13110776] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/24/2021] [Accepted: 10/28/2021] [Indexed: 12/19/2022] Open
Abstract
Pseudomonas (P.) aeruginosa is an opportunistic pathogen that causes serious infections and hospital-acquired pneumonia in immunocompromised patients. P. aeruginosa accounts for up to 20% of all cases of hospital-acquired pneumonia, with an attributable mortality rate of ~30-40%. The poor clinical outcome of P. aeruginosa-induced pneumonia is ascribed to its ability to disrupt lung barrier integrity, leading to the development of lung edema and bacteremia. Airway epithelial and endothelial cells are important architecture blocks that protect the lung from invading pathogens. P. aeruginosa produces a number of virulence factors that can modulate barrier function, directly or indirectly, through exploiting cytoskeleton networks and intercellular junctional complexes in eukaryotic cells. This review summarizes the current knowledge on P. aeruginosa virulence factors, their effects on the regulation of the cytoskeletal network and associated components, and molecular mechanisms regulating barrier function in airway epithelial and endothelial cells. A better understanding of these processes will help to lay the foundation for new therapeutic approaches against P. aeruginosa-induced pneumonia.
Collapse
Affiliation(s)
- Brant M. Wagener
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (B.M.W.); (R.H.); (S.W.); (J.-F.P.); (Q.D.)
- Division of Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Division of Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Center for Free Radical Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Ruihan Hu
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (B.M.W.); (R.H.); (S.W.); (J.-F.P.); (Q.D.)
- Division of Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Department of Internal Medicine, Guiqian International General Hospital, Guiyang 550024, China
| | - Songwei Wu
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (B.M.W.); (R.H.); (S.W.); (J.-F.P.); (Q.D.)
- Division of Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Jean-Francois Pittet
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (B.M.W.); (R.H.); (S.W.); (J.-F.P.); (Q.D.)
- Division of Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Division of Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Qiang Ding
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (B.M.W.); (R.H.); (S.W.); (J.-F.P.); (Q.D.)
- Division of Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Pulin Che
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (B.M.W.); (R.H.); (S.W.); (J.-F.P.); (Q.D.)
- Division of Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| |
Collapse
|
13
|
Tong Y, Bao C, Xu YQ, Tao L, Zhou Y, Zhuang L, Meng Y, Zhang H, Xue J, Wang W, Zhang L, Pan Q, Shao Z, Hu T, Guo Q, Xue Q, Lu H, Luo Y. The β3/5 Integrin-MMP9 Axis Regulates Pulmonary Inflammatory Response and Endothelial Leakage in Acute Lung Injury. J Inflamm Res 2021; 14:5079-5094. [PMID: 34675589 PMCID: PMC8502060 DOI: 10.2147/jir.s331939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/23/2021] [Indexed: 12/12/2022] Open
Abstract
Background Acute lung injury (ALI) is a severe respiratory disease with high rates of morbidity and mortality. Many mediators regarding endogenous or exogenous are involved in the pathophysiology of ALI. Here, we have uncovered the involvement of integrins and matrix metalloproteinases, as critical determinants of excessive inflammation and endothelial permeability, in the regulation of ALI. Methods Inflammatory cytokines were measured by quantitative real-time PCR for mRNA levels and ELISA for secretion levels. Endothelial permeability assay was detected by the passage of rhodamine B isothiocyanate-dextran. Mice lung permeability was assayed by Evans blue albumin (EBA). Western blot was used for protein level measurements. The intracellular reactive oxygen species (ROS) were evaluated using a cell-permeable probe, DCFH-DA. Intratracheal injection of lipopolysaccharide (LPS) into mice was conducted to establish the lung injury model. Results Exogenous MMP-9 significantly aggravated the inflammatory response and permeability in mouse pulmonary microvascular endothelial cells (PMVECs) treated by LPS, whereas knockdown of MMP-9 exhibited the opposite phenotypes. Knockdown of integrin β3 or β5 in LPS-treated PMVECs significantly downregulated MMP-9 expression and decreased inflammatory response and permeability in the presence or absence of exogenous MMP-9. Additionally, the interaction of MMP-9 and integrin β5 was impaired by a ROS scavenger, which further decreased the pro-inflammatory cytokines production and endothelial leakage in PMVECs subjected to co-treatment (LPS with exogenous MMP-9). In vivo studies, exogenous MMP-9 treatment or knockdown β3 integrin significantly decreased survival in ALI mice. Notably, knockdown of β5 integrin alone had no remarkable effect on survival, but which combined with anti-MMP-9 treatment significantly improved the survival by ameliorating excessive lung inflammation and permeability in ALI mice. Conclusion These findings support the β3/5 integrin-MMP-9 axis as an endogenous signal that could play a pivotal role in regulating inflammatory response and alveolar-capillary permeability in ALI.
Collapse
Affiliation(s)
- Yao Tong
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Chengrong Bao
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Yi-Qiong Xu
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Lei Tao
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Yao Zhou
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Lei Zhuang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Ying Meng
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Hui Zhang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Jingjing Xue
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Weijun Wang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Lele Zhang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Qingbo Pan
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Zhenzhen Shao
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Tianran Hu
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Qian Guo
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Qingsheng Xue
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Han Lu
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Yan Luo
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| |
Collapse
|
14
|
Lai Y, Huang Y. Mechanisms of Mechanical Force Induced Pulmonary Vascular Endothelial Hyperpermeability. Front Physiol 2021; 12:714064. [PMID: 34671268 PMCID: PMC8521004 DOI: 10.3389/fphys.2021.714064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/30/2021] [Indexed: 12/27/2022] Open
Abstract
Mechanical ventilation is a supportive therapy for patients with acute respiratory distress syndrome (ARDS). However, it also inevitably produces or aggravates the original lung injury with pathophysiological changes of pulmonary edema caused by increased permeability of alveolar capillaries which composed of microvascular endothelium, alveolar epithelium, and basement membrane. Vascular endothelium forms a semi-selective barrier to regulate body fluid balance. Mechanical ventilation in critically ill patients produces a mechanical force on lung vascular endothelium when the endothelial barrier was destructed. This review aims to provide a comprehensive overview of molecular and signaling mechanisms underlying the endothelial barrier permeability in ventilator-induced lung jury (VILI).
Collapse
Affiliation(s)
- Yan Lai
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Critical Care Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yongbo Huang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Critical Care Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| |
Collapse
|
15
|
Abstract
The transmission of information between tumor cells and other cell types in the tumor microenvironment plays an important role in tumor metastasis and is critically modulated by exosomes and other mediators. Tumor-derived exosomes can promote epithelial-mesenchymal transition, angiogenesis, immune escape, formation of the pre-metastatic microenvironment, and transmission of drug-resistant molecules, thereby promoting tumor growth, invasion, and metastasis. Integrins are important regulatory molecules on exosomes that can locate metastatic cells at the initial stage of metastasis and show good organotropism. This fact suggests that a clear understanding of the roles of exosomal integrins will be beneficial for future clinical applications. Follow-up studies on exosomes using continuously updated purification techniques and identification methods are extremely important. In addition to their potential as cancer biomarkers, exosomes also provide new research directions for precision medicine. Currently, exosomes have potential value in disease treatment and provide clinicians with more meaningful judgment standards.
Collapse
|
16
|
Dodagatta-Marri E, Ma HY, Liang B, Li J, Meyer DS, Chen SY, Sun KH, Ren X, Zivak B, Rosenblum MD, Headley MB, Pinzas L, Reed NI, Del Cid JS, Hann BC, Yang S, Giddabasappa A, Noorbehesht K, Yang B, Dal Porto J, Tsukui T, Niessen K, Atakilit A, Akhurst RJ, Sheppard D. Integrin αvβ8 on T cells suppresses anti-tumor immunity in multiple models and is a promising target for tumor immunotherapy. Cell Rep 2021; 36:109309. [PMID: 34233193 PMCID: PMC8321414 DOI: 10.1016/j.celrep.2021.109309] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 01/17/2021] [Accepted: 06/04/2021] [Indexed: 01/18/2023] Open
Abstract
αvβ8 integrin, a key activator of transforming growth factor β (TGF-β), inhibits anti-tumor immunity. We show that a potent blocking monoclonal antibody against αvβ8 (ADWA-11) causes growth suppression or complete regression in syngeneic models of squamous cell carcinoma, mammary cancer, colon cancer, and prostate cancer, especially when combined with other immunomodulators or radiotherapy. αvβ8 is expressed at the highest levels in CD4+CD25+ T cells in tumors, and specific deletion of β8 from T cells is as effective as ADWA-11 in suppressing tumor growth. ADWA-11 increases expression of a suite of genes in tumor-infiltrating CD8+ T cells normally inhibited by TGF-β and involved in tumor cell killing, including granzyme B and interferon-γ. The in vitro cytotoxic effect of tumor CD8 T cells is inhibited by CD4+CD25+ cells, and this suppressive effect is blocked by ADWA-11. These findings solidify αvβ8 integrin as a promising target for cancer immunotherapy. TGF-β suppresses anti-tumor immunity. Dodagatta-Marri, Ma et al. show that the TGF-β-activating integrin αvβ8 is expressed on CD25+CD4+ tumor T cells and suppresses anti-tumor immunity by CD8+ T cells. Blocking this integrin enhances tumor cell killing and synergizes with multiple immune modulators or radiotherapy to induce long-term anti-tumor immunity.
Collapse
Affiliation(s)
- Eswari Dodagatta-Marri
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
| | - Hsiao-Yen Ma
- Lung Biology Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Benjia Liang
- Lung Biology Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA; Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, Shandong, China
| | - John Li
- Lung Biology Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Dominique S Meyer
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
| | - Szu-Ying Chen
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
| | - Kai-Hui Sun
- Lung Biology Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Xin Ren
- Lung Biology Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Bahar Zivak
- Department of Dermatology, University of California, San Francisco, San Francisco, CA, USA
| | - Michael D Rosenblum
- Department of Dermatology, University of California, San Francisco, San Francisco, CA, USA
| | - Mark B Headley
- Department of Pathology, University of California, San Francisco, San Francisco, CA, USA
| | - Lauren Pinzas
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
| | - Nilgun I Reed
- Lung Biology Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Joselyn S Del Cid
- Lung Biology Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Byron C Hann
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
| | - Sharon Yang
- Comparative Medicine, Pfizer Inc., San Diego, CA, USA
| | | | | | - Bing Yang
- Oncology Research Unit, Pfizer Inc., Pearl River, NY, USA
| | - Joseph Dal Porto
- Pfizer Centers for Therapeutic Innovation, San Francisco, CA, USA
| | - Tatsuya Tsukui
- Lung Biology Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Kyle Niessen
- Pfizer Centers for Therapeutic Innovation, San Francisco, CA, USA
| | - Amha Atakilit
- Lung Biology Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Rosemary J Akhurst
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA; Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA.
| | - Dean Sheppard
- Lung Biology Center, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA.
| |
Collapse
|
17
|
Richards M, Pal S, Sjöberg E, Martinsson P, Venkatraman L, Claesson-Welsh L. Intra-vessel heterogeneity establishes enhanced sites of macromolecular leakage downstream of laminin α5. Cell Rep 2021; 35:109268. [PMID: 34161758 DOI: 10.1016/j.celrep.2021.109268] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 03/16/2021] [Accepted: 05/26/2021] [Indexed: 11/25/2022] Open
Abstract
Endothelial cells display heterogeneous properties based on location and function. How this heterogeneity influences endothelial barrier stability both between and within vessel subtypes is unexplored. In this study, we find that endothelial cells exhibit heterogeneous barrier properties on inter-organ and intra-vessel levels. Using intravital microscopy and sequential stimulation of the ear dermis with vascular endothelial growth factor-A (VEGFA) and/or histamine, we observe distinct, reappearing sites, common for both agonists, where leakage preferentially takes place. Through repetitive stimulation of the diaphragm and trachea, we find inter-organ conservation of such predetermined leakage sites. Qualitatively, predetermined sites display distinct leakage properties and enhanced barrier breakdown compared to less susceptible regions. Mechanistically, laminin α5 is reduced at predetermined sites, which is linked to reduced junctional vascular endothelial (VE)-cadherin and enhanced VEGFA-induced VE-cadherin phosphorylation. These data highlight functional intra-vessel heterogeneity that defines predetermined sites with distinct leakage properties and that may disproportionately impact pathological vascular leakage.
Collapse
Affiliation(s)
- Mark Richards
- Beijer and Science for Life Laboratories, Department of Immunology, Genetics and Pathology, Uppsala University, Dag Hammarskjöldsv 20, 751 85 Uppsala, Sweden.
| | - Sagnik Pal
- Beijer and Science for Life Laboratories, Department of Immunology, Genetics and Pathology, Uppsala University, Dag Hammarskjöldsv 20, 751 85 Uppsala, Sweden
| | - Elin Sjöberg
- Beijer and Science for Life Laboratories, Department of Immunology, Genetics and Pathology, Uppsala University, Dag Hammarskjöldsv 20, 751 85 Uppsala, Sweden
| | - Pernilla Martinsson
- Beijer and Science for Life Laboratories, Department of Immunology, Genetics and Pathology, Uppsala University, Dag Hammarskjöldsv 20, 751 85 Uppsala, Sweden
| | - Lakshmi Venkatraman
- Beijer and Science for Life Laboratories, Department of Immunology, Genetics and Pathology, Uppsala University, Dag Hammarskjöldsv 20, 751 85 Uppsala, Sweden
| | - Lena Claesson-Welsh
- Beijer and Science for Life Laboratories, Department of Immunology, Genetics and Pathology, Uppsala University, Dag Hammarskjöldsv 20, 751 85 Uppsala, Sweden.
| |
Collapse
|
18
|
Cai C, Sun H, Hu L, Fan Z. Visualization of integrin molecules by fluorescence imaging and techniques. ACTA ACUST UNITED AC 2021; 45:229-257. [PMID: 34219865 PMCID: PMC8249084 DOI: 10.32604/biocell.2021.014338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Integrin molecules are transmembrane αβ heterodimers involved in cell adhesion, trafficking, and signaling. Upon activation, integrins undergo dynamic conformational changes that regulate their affinity to ligands. The physiological functions and activation mechanisms of integrins have been heavily discussed in previous studies and reviews, but the fluorescence imaging techniques -which are powerful tools for biological studies- have not. Here we review the fluorescence labeling methods, imaging techniques, as well as Förster resonance energy transfer assays used to study integrin expression, localization, activation, and functions.
Collapse
Affiliation(s)
- Chen Cai
- Department of Immunology, School of Medicine, UConn Health, Farmington, 06030, USA
| | - Hao Sun
- Department of Medicine, University of California, San Diego, La Jolla, 92093, USA
| | - Liang Hu
- Cardiovascular Institute of Zhengzhou University, Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450051, China
| | - Zhichao Fan
- Department of Immunology, School of Medicine, UConn Health, Farmington, 06030, USA
| |
Collapse
|
19
|
Capasso D, Del Gatto A, Comegna D, Russo L, Fattorusso R, Saviano M, Di Gaetano S, Zaccaro L. Selective Targeting of αvβ5 Integrin in HepG2 Cell Line by RGDechi15D Peptide. Molecules 2020; 25:molecules25184298. [PMID: 32961684 PMCID: PMC7570809 DOI: 10.3390/molecules25184298] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/25/2020] [Accepted: 09/11/2020] [Indexed: 12/21/2022] Open
Abstract
Recently, the research community has become increasingly concerned with the receptor αvβ5, a member of the well-known integrin family. Different ongoing studies have evidenced that αvβ5 integrin regulates not only physiological processes but also a wide array of pathological events, suggesting the receptor as a valuable biomarker to specifically target for therapeutic/diagnostic purposes. Remarkably, in some tumors the involvement of the receptor in cell proliferation, tumor dissemination and angiogenesis is well-documented. In this scenario, the availability of a selective αvβ5 antagonist without ‘off-target’ protein effects may improve survival rate in patients with highly aggressive tumors, such as hepatocellular carcinoma. We recently reported a cyclic peptide, RGDechi15D, obtained by structure-activity studies. To our knowledge it represents the first peptide-based molecule reported in the literature able to specifically bind αvβ5 integrin and not cross react with αvβ3. Here we demonstrated the ability of the peptide to diminish both adhesion and invasion of HepG2 cells, an in vitro model system for hepatocellular carcinoma, to reduce the cell proliferation through an apoptotic process, and to interfere with the PI3K pathway. The peptide, also decreases the formation of new vessels in endothelial cells. Taken together these results indicate that the peptide can be considered a promising molecule with properties suited to be assessed in the future for its validation as a selective therapeutic/diagnostic weapon in hepatocarcinoma.
Collapse
Affiliation(s)
- Domenica Capasso
- CESTEV, University of Naples “Federico II”, 80145 Naples, Italy;
- CIRPeB, University of Naples “Federico II”, 80134 Naples, Italy; (A.D.G.); (R.F.); (M.S.)
| | - Annarita Del Gatto
- CIRPeB, University of Naples “Federico II”, 80134 Naples, Italy; (A.D.G.); (R.F.); (M.S.)
- Institute of Biostructures and Bioimaging, CNR, 80134 Naples, Italy;
| | - Daniela Comegna
- Institute of Biostructures and Bioimaging, CNR, 80134 Naples, Italy;
| | - Luigi Russo
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, 81100 Caserta, Italy;
| | - Roberto Fattorusso
- CIRPeB, University of Naples “Federico II”, 80134 Naples, Italy; (A.D.G.); (R.F.); (M.S.)
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, 81100 Caserta, Italy;
| | - Michele Saviano
- CIRPeB, University of Naples “Federico II”, 80134 Naples, Italy; (A.D.G.); (R.F.); (M.S.)
- Institute of Crystallography, CNR, 70126 Bari, Italy
| | - Sonia Di Gaetano
- CIRPeB, University of Naples “Federico II”, 80134 Naples, Italy; (A.D.G.); (R.F.); (M.S.)
- Institute of Biostructures and Bioimaging, CNR, 80134 Naples, Italy;
- Correspondence: (S.D.G.); (L.Z.)
| | - Laura Zaccaro
- CIRPeB, University of Naples “Federico II”, 80134 Naples, Italy; (A.D.G.); (R.F.); (M.S.)
- Institute of Biostructures and Bioimaging, CNR, 80134 Naples, Italy;
- Correspondence: (S.D.G.); (L.Z.)
| |
Collapse
|
20
|
Lippa RA, Barrett J, Pal S, Rowedder JE, Murphy JA, Barrett TN. Discovery of the first potent and selective α vβ 5 integrin inhibitor based on an amide-containing core. Eur J Med Chem 2020; 208:112719. [PMID: 32865176 DOI: 10.1016/j.ejmech.2020.112719] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/31/2020] [Accepted: 08/02/2020] [Indexed: 01/25/2023]
Abstract
Integrins αvβ5 and αvβ3 are closely related, proangiogenic members of the wider RGD-binding integrin family. Due to their high sequence homology, the development of αvβ5-selective compounds has remained elusive to synthetic and medicinal chemists. Herein, we describe a survey of SAR around a series of amide-containing 3-aryl-succinamic acid-based RGD mimetics. This resulted in the discovery of α,α,α-trifluorotolyl 12 which exhibits 800 × selectivity for αvβ5versus αvβ3 with a pyrrolidine amide linker that confers selectivity for αvβ5 by positioning a key aryl ring in the SDL of αvβ5 with good complementarity; binding in this mode is disfavoured in αvβ3 due to clashes with key residues in the β3-subunit. Compound 12 exhibits selective inhibition by a cell adhesion assay, high passive permeability and solubility which enables potential use of this inhibitor as an αvβ5-selective in vitro tool compound.
Collapse
Affiliation(s)
- Rhys A Lippa
- Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, Scotland, UK
| | - John Barrett
- GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage, SG1 2NY, UK
| | - Sandeep Pal
- GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage, SG1 2NY, UK
| | - James E Rowedder
- GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage, SG1 2NY, UK
| | - John A Murphy
- Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, Scotland, UK
| | - Tim N Barrett
- GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage, SG1 2NY, UK.
| |
Collapse
|
21
|
Oguri Y, Shinoda K, Kim H, Alba DL, Bolus WR, Wang Q, Brown Z, Pradhan RN, Tajima K, Yoneshiro T, Ikeda K, Chen Y, Cheang RT, Tsujino K, Kim CR, Greiner VJ, Datta R, Yang CD, Atabai K, McManus MT, Koliwad SK, Spiegelman BM, Kajimura S. CD81 Controls Beige Fat Progenitor Cell Growth and Energy Balance via FAK Signaling. Cell 2020; 182:563-577.e20. [PMID: 32615086 DOI: 10.1016/j.cell.2020.06.021] [Citation(s) in RCA: 145] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/30/2020] [Accepted: 06/09/2020] [Indexed: 01/03/2023]
Abstract
Adipose tissues dynamically remodel their cellular composition in response to external cues by stimulating beige adipocyte biogenesis; however, the developmental origin and pathways regulating this process remain insufficiently understood owing to adipose tissue heterogeneity. Here, we employed single-cell RNA-seq and identified a unique subset of adipocyte progenitor cells (APCs) that possessed the cell-intrinsic plasticity to give rise to beige fat. This beige APC population is proliferative and marked by cell-surface proteins, including PDGFRα, Sca1, and CD81. Notably, CD81 is not only a beige APC marker but also required for de novo beige fat biogenesis following cold exposure. CD81 forms a complex with αV/β1 and αV/β5 integrins and mediates the activation of integrin-FAK signaling in response to irisin. Importantly, CD81 loss causes diet-induced obesity, insulin resistance, and adipose tissue inflammation. These results suggest that CD81 functions as a key sensor of external inputs and controls beige APC proliferation and whole-body energy homeostasis.
Collapse
Affiliation(s)
- Yasuo Oguri
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA, USA; Beth Israel Deaconess Medical Center, Division of Endocrinology, Diabetes & Metabolism, Harvard Medical School, Boston, MA, USA
| | - Kosaku Shinoda
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA, USA; Department of Medicine and Molecular Pharmacology, Albert Einstein College of Medicine, New York, NY, USA
| | - Hyeonwoo Kim
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Diana L Alba
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - W Reid Bolus
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Qiang Wang
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA, USA; Beth Israel Deaconess Medical Center, Division of Endocrinology, Diabetes & Metabolism, Harvard Medical School, Boston, MA, USA
| | - Zachary Brown
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA, USA
| | - Rachana N Pradhan
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA, USA
| | - Kazuki Tajima
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA, USA
| | - Takeshi Yoneshiro
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA, USA
| | - Kenji Ikeda
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA, USA; Department of Molecular Endocrinology and Metabolism, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yong Chen
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA, USA; Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rachel T Cheang
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Kazuyuki Tsujino
- Department of Respiratory Medicine, National Hospital Organization Osaka Toneyama Medical Center, Osaka, Japan
| | - Caroline R Kim
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Vanille Juliette Greiner
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
| | - Ritwik Datta
- Department of Medicine, Lung Biology Center, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Christopher D Yang
- Department of Medicine, Lung Biology Center, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Kamran Atabai
- Department of Medicine, Lung Biology Center, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Michael T McManus
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
| | - Suneil K Koliwad
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | | | - Shingo Kajimura
- UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA; Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA, USA; Beth Israel Deaconess Medical Center, Division of Endocrinology, Diabetes & Metabolism, Harvard Medical School, Boston, MA, USA.
| |
Collapse
|
22
|
Botros L, Pronk MCA, Juschten J, Liddle J, Morsing SKH, van Buul JD, Bates RH, Tuinman PR, van Bezu JSM, Huveneers S, Bogaard HJ, van Hinsbergh VWM, Hordijk PL, Aman J. Bosutinib prevents vascular leakage by reducing focal adhesion turnover and reinforcing junctional integrity. J Cell Sci 2020; 133:jcs240077. [PMID: 32198280 DOI: 10.1242/jcs.240077] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 03/11/2020] [Indexed: 12/29/2022] Open
Abstract
Endothelial barrier dysfunction leads to edema and vascular leak, causing high morbidity and mortality. Previously, Abl kinase inhibition has been shown to protect against vascular leak. Using the distinct inhibitory profiles of clinically available Abl kinase inhibitors, we aimed to provide a mechanistic basis for novel treatment strategies against vascular leakage syndromes. We found that the inhibitor bosutinib most potently protected against inflammation-induced endothelial barrier disruption. In vivo, bosutinib prevented lipopolysaccharide (LPS)-induced alveolar protein extravasation in an acute lung injury mice model. Mechanistically, mitogen-activated protein 4 kinase 4 (MAP4K4) was identified as important novel mediator of endothelial permeability, which signaled via ezrin, radixin and moesin proteins to increase turnover of integrin-based focal adhesions. The combined inhibition of MAP4K4 and Abl-related gene (Arg, also known as ABL2) by bosutinib preserved adherens junction integrity and reduced turnover of focal adhesions, which synergistically act to stabilize the endothelial barrier during inflammation. We conclude that MAP4K4 is an important regulator of endothelial barrier integrity, increasing focal adhesion turnover and disruption of cell-cell junctions during inflammation. Because it inhibits both Arg and MAP4K4, use of the clinically available drug bosutinib might form a viable strategy against vascular leakage syndromes.
Collapse
Affiliation(s)
- Liza Botros
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Pulmonology, Amsterdam Cardiovascular Sciences, 1081 BT Amsterdam, The Netherlands
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Physiology, Amsterdam Cardiovascular Sciences, 1081 BT Amsterdam, The Netherlands
| | - Manon C A Pronk
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Physiology, Amsterdam Cardiovascular Sciences, 1081 BT Amsterdam, The Netherlands
| | - Jenny Juschten
- Amsterdam UMC, University of Amsterdam, Department of Intensive Care, 1105 AZ Amsterdam, The Netherlands
| | - John Liddle
- GlaxoSmithKline, Stevenage, Hertfordshire, SG1 2NY, UK
| | - Sofia K H Morsing
- Molecular Cell Biology Lab at Dept. Molecular Cellular Haemostasis, Sanquin Research and Landsteiner Laboratory, Amsterdam, The Netherlands
| | - Jaap D van Buul
- Molecular Cell Biology Lab at Dept. Molecular Cellular Haemostasis, Sanquin Research and Landsteiner Laboratory, Amsterdam, The Netherlands
| | | | - Pieter R Tuinman
- Amsterdam UMC, University of Amsterdam, Department of Intensive Care, 1105 AZ Amsterdam, The Netherlands
| | - Jan S M van Bezu
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Physiology, Amsterdam Cardiovascular Sciences, 1081 BT Amsterdam, The Netherlands
| | - Stephan Huveneers
- Amsterdam UMC, University of Amsterdam, Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, 1105 AZ Amsterdam, The Netherlands
| | - Harm Jan Bogaard
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Pulmonology, Amsterdam Cardiovascular Sciences, 1081 BT Amsterdam, The Netherlands
| | - Victor W M van Hinsbergh
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Physiology, Amsterdam Cardiovascular Sciences, 1081 BT Amsterdam, The Netherlands
| | - Peter L Hordijk
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Physiology, Amsterdam Cardiovascular Sciences, 1081 BT Amsterdam, The Netherlands
| | - Jurjan Aman
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Pulmonology, Amsterdam Cardiovascular Sciences, 1081 BT Amsterdam, The Netherlands
| |
Collapse
|
23
|
Duan X, Wu Y, Zhang Z, Lu Z. Identification and analysis of dysregulated lncRNA and associated ceRNA in the pathogenesis of keloid. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:222. [PMID: 32309369 PMCID: PMC7154391 DOI: 10.21037/atm.2020.01.07] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Background Keloid is an excessive fibrosis disease caused by the abnormal proliferation of collagen fibers following trauma. Previous studies have shown that genetic factors have been considered to play important roles in keloid formation. This study is aimed to investigate the regulatory network of messenger RNAs (mRNAs) microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) in keloid, and identifying its key biomarkers. Methods We performed RNA-seq and miRNA-seq on keloid and normal skin samples. Sequencing datasets were analyzed by bioinformatics. Gene ontology (GO) and pathway analysis presented the characteristics of associated protein-coding genes. Differentially expressed ceRNAs were validated by quantitative reverse transcriptase-PCR (qRT-PCR). Results We identified a total of 319 lncRNAs, 1,533 mRNAs and 40 miRNAs as keloid-specific RNAs. Both the GO biological processes and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways were analyzed for 1,219 specific genes with differentially expressed mRNAs. Then, with 509 key lncRNAs, 25 miRNAs, and 94 mRNAs, we constructed a ceRNA network and explored any potential underlying mechanisms. In the regulation of the actin cytokeleton pathway, we validated 2 pairs of ceRNAs EGFR/miR-370-3p/lnc-GLB1L-1 and ITGB5/ miR-204/ lnc-CASP9-3 in another sample size in keloid. Conclusions Through RNA-seq and miRNA-seq, we identified keloid-associated lncRNAs, mRNAs and miRNAs, which can be used as potential therapeutic targets and biomarkers for keloid. Our study may lay a foundation for future pathogenesis studies.
Collapse
Affiliation(s)
- Xilei Duan
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yuemeng Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Zheng Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Zhong Lu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, China
| |
Collapse
|
24
|
Che P, Wagener BM, Zhao X, Brandon AP, Evans CA, Cai GQ, Zhao R, Xu ZX, Han X, Pittet JF, Ding Q. Neuronal Wiskott-Aldrich syndrome protein regulates Pseudomonas aeruginosa-induced lung vascular permeability through the modulation of actin cytoskeletal dynamics. FASEB J 2020; 34:3305-3317. [PMID: 31916311 DOI: 10.1096/fj.201902915r] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/23/2019] [Accepted: 12/24/2019] [Indexed: 02/06/2023]
Abstract
Pulmonary edema associated with increased vascular permeability is a severe complication of Pseudomonas (P.) aeruginosa-induced acute lung injury. The mechanisms underlying P aeruginosa-induced vascular permeability are not well understood. In the present study, we investigated the role of neuronal Wiskott Aldrich syndrome protein (N-WASP) in modulating P aeruginosa-induced vascular permeability. Using lung microvascular endothelial and alveolar epithelial cells, we demonstrated that N-WASP downregulation attenuated P aeruginosa-induced actin stress fiber formation and prevented paracellular permeability. P aeruginosa-induced dissociation between VE-cadherin and β-catenin, but increased association between N-WASP and VE-cadherin, suggesting a role for N-WASP in promoting P aeruginosa-induced adherens junction rupture. P aeruginosa increased N-WASP-Y256 phosphorylation, which required the activation of Rho GTPase and focal adhesion kinase. Increased N-WASP-Y256 phosphorylation promotes N-WASP and integrin αVβ6 association as well as TGF-β-mediated permeability across alveolar epithelial cells. Inhibition of N-WASP-Y256 phosphorylation by N-WASP-Y256F overexpression blocked N-WASP effects in P aeruginosa-induced actin stress fiber formation and increased paracellular permeability. In vivo, N-WASP knockdown attenuated the development of pulmonary edema and improved survival in a mouse model of P aeruginosa pneumonia. Together, our data demonstrate that N-WASP plays an essential role in P aeruginosa-induced vascular permeability and pulmonary edema through the modulation of actin cytoskeleton dynamics.
Collapse
Affiliation(s)
- Pulin Che
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.,Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Brant M Wagener
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.,Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, AL, USA.,Divisions of Critical Care, University of Alabama at Birmingham, Birmingham, AL, USA.,Center for Free Radical Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Xueke Zhao
- Department of Infectious Diseases, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Angela P Brandon
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Cilina A Evans
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Guo-Qiang Cai
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rui Zhao
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Zhi-Xiang Xu
- Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Xiaosi Han
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jean-Francois Pittet
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.,Divisions of Critical Care, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Qiang Ding
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.,Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, AL, USA
| |
Collapse
|
25
|
Suppressive functions of collismycin C in TGFBIp-mediated septic responses. J Nat Med 2019; 74:387-398. [PMID: 31760555 DOI: 10.1007/s11418-019-01374-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/13/2019] [Indexed: 01/01/2023]
Abstract
Transforming growth factor β-induced protein (TGFBIp) is an extracellular matrix protein; its expression by several cell types is greatly increased by TGF-β. TGFBIp is released by primary human umbilical vein endothelial cells (HUVECs) and functions as a mediator of experimental sepsis. 2,2'-Bipyridine-containing natural products are generally accepted to have antimicrobial, cytotoxic and anti-inflammatory properties. We hypothesized that a 2,2'-bipyridine containing natural product, collismycin C, could reduce TGFBIp-mediated severe inflammatory responses in human endothelial cells and mice. Here we investigated the effects and underlying mechanisms of collismycin C against TGFBIp-mediated septic responses. Collismycin C effectively inhibited lipopolysaccharide-induced release of TGFBIp and suppressed TGFBIp-mediated septic responses. In addition, collismycin C suppressed TGFBIp-induced sepsis lethality and pulmonary injury. This suppression of TGFBIp-mediated and CLP-induced septic responses indicates that collismycin C is a potential therapeutic agent for various severe vascular inflammatory diseases, with inhibition of the TGFBIp signaling pathway as the mechanism of action.
Collapse
|
26
|
Abstract
The endothelium physically separates blood from surrounding tissue and yet allows for the regulated passage of nutrients, waste, and leukocytes into and out of the circulation. Trans-endothelium flux occurs across endothelial cells (transcellular) and between endothelial cells (paracellular). Paracellular endothelial barrier function depends on the regulation of cell-cell junctions. Interestingly, a functional relationship between cell-cell junctions and cell-matrix adhesions has long been appreciated but the molecular mechanisms underpinning this relationship are not fully understood. Here we review the evidence that supports the notion that cell-matrix interactions contribute to the regulation of cell-cell junctions, focusing primarily on the important adherens junction protein VE-cadherin. In particular, we will discuss recent insights gained into how integrin signaling impacts VE-cadherin stability in adherens junctions and endothelial barrier function.
Collapse
Affiliation(s)
- Fadi E Pulous
- Department of Pediatrics, Aflac Cancer and Blood Disorders Center (FEP, BGP) and Cancer Biology Graduate Program (FEP), Emory University School of Medicine, Atlanta, GA, USA
| | - Brian G Petrich
- Department of Pediatrics, Aflac Cancer and Blood Disorders Center (FEP, BGP) and Cancer Biology Graduate Program (FEP), Emory University School of Medicine, Atlanta, GA, USA
| |
Collapse
|
27
|
Li C, Pan J, Ye L, Xu H, Wang B, Xu H, Xu L, Hou T, Zhang D. Autophagy regulates the therapeutic potential of adipose-derived stem cells in LPS-induced pulmonary microvascular barrier damage. Cell Death Dis 2019; 10:804. [PMID: 31645547 PMCID: PMC6811543 DOI: 10.1038/s41419-019-2037-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/25/2019] [Accepted: 09/23/2019] [Indexed: 11/09/2022]
Abstract
Adipose-derived stem cells (ADSCs) have been shown to be beneficial in some pulmonary diseases, and the paracrine effect is the major mechanism underlying ADSC-based therapy. Autophagy plays a crucial role in maintaining stem cell homeostasis and survival. However, the role of autophagy in mediating ADSC paracrine effects has not been thoroughly elucidated. We examined whether ADSCs participate in lipopolysaccharide (LPS)-induced pulmonary microvascular endothelial cell (PMVEC) barrier damage in a paracrine manner and illuminated the role of autophagy in regulating ADSC paracrine effects. PMVECs and ADSCs with or without autophagy inhibition were cocultured without intercellular contact, and the microvascular barrier function was assessed after LPS treatment. ADSC paracrine function was evaluated by detecting essential growth factors for endothelial cells. For in vivo experiments, ADSCs with or without autophagy inhibition were transplanted into LPS-induced lung-injury mice, and lung injury was assessed. ADSCs significantly alleviated LPS-induced microvascular barrier injury. In addition, ADSC paracrine levels of VEGF, FGF, and EGF were induced by LPS treatment, especially in the coculture condition. Inhibiting autophagy weakened the paracrine function and the protective effects of ADSCs on microvascular barrier injury. Moreover, ADSC transplantation alleviated LPS-induced lung injury, and inhibiting autophagy markedly weakened the therapeutic effect of ADSCs on lung injury. Together, these findings show that ADSC paracrine effects play a vital protective role in LPS-induced pulmonary microvascular barrier injury. Autophagy is a positive mediating factor in the paracrine process. These results are helpful for illuminating the role and mechanism of ADSC paracrine effects and developing effective therapies in acute lung injury.
Collapse
Affiliation(s)
- Chichi Li
- Plastic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, PR China
| | - Jingye Pan
- Department of Intensive Care Unit, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, PR China
| | - Lechi Ye
- Department of Colorectal & Anal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, PR China
| | - Honglei Xu
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, PR China
| | - Beibei Wang
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, PR China
| | - Hanyan Xu
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, PR China
| | - Lingna Xu
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, PR China
| | - Tongtong Hou
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, PR China
| | - Dan Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, 325000, PR China.
| |
Collapse
|
28
|
Lee TH, Hsieh ST, Chiang HY. Fibronectin inhibitor pUR4 attenuates tumor necrosis factor α-induced endothelial hyperpermeability by modulating β1 integrin activation. J Biomed Sci 2019; 26:37. [PMID: 31096970 PMCID: PMC6521375 DOI: 10.1186/s12929-019-0529-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Accepted: 05/05/2019] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND The blood-spinal cord barrier (BSCB) is composed of a monolayer of endothelium linked with tight junctions and extracellular matrix (ECM)-rich basement membranes and is surrounded by astrocyte foot processes. Endothelial permeability is regulated by interaction between endothelial cells and ECM proteins. Fibronectin (FN) is a principal ECM component of microvessels. Excessive FN deposition disrupts cell-cell adhesion in fibroblasts through β1 integrin ligation. To determine whether excessive FN deposition contributes to the disruption of endothelial integrity, we used an in vitro model of the endothelial monolayer to investigate whether the FN inhibitor pUR4 prevents FN deposition into the subendothelial matrix and attenuates endothelial leakage. METHODS To correlate the effects of excessive FN accumulation in microvessels on BSCB disruption, spinal nerve ligation-which induces BSCB leakage-was applied, and FN expression in the spinal cord was evaluated through immunohistochemistry and immunoblotting. To elucidate the effects by which pUR4 modulates endothelial permeability, brain-derived endothelial (bEND.3) cells treated with tumor necrosis factor (TNF)-α were used to mimic a leaky BSCB. A bEND.3 monolayer was preincubated with pUR4 before TNF-α treatment. The transendothelial electrical resistance (TEER) measurement and transendothelial permeability assay were applied to assess the endothelial integrity of the bEND.3 monolayer. Immunofluorescence analysis and immunoblotting were performed to evaluate the inhibitory effects of pUR4 on TNF-α-induced FN deposition. To determine the mechanisms underlying pUR4-mediated endothelial permeability, cell morphology, stress fiber formation, myosin light chain (MLC) phosphorylation, and β1 integrin-mediated signaling were evaluated through immunofluorescence analysis and immunoblotting. RESULTS Excessive FN was accumulated in the microvessels of the spinal cord after spinal nerve ligation; moreover, pUR4 inhibited TNF-α-induced FN deposition in the bEND.3 monolayer and maintained intact TEER and endothelial permeability. Furthermore, pUR4 reduced cell morphology alteration, actin stress fiber formation, and MLC phosphorylation, thereby attenuating paracellular gap formation. Moreover, pUR4 reduced β1 integrin activation and downstream signaling. CONCLUSIONS pUR4 reduces TNF-α-induced β1 integrin activation by depleting ECM FN, leading to a decrease in endothelial hyperpermeability and maintenance of monolayer integrity. These findings suggest therapeutic benefits of pUR4 in pathological vascular leakage treatment.
Collapse
Affiliation(s)
- Ting-Hein Lee
- Department of Anatomy, College of Medicine, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist, Taoyuan City, 33302, Taiwan.,Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Sung-Tsang Hsieh
- Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Hou-Yu Chiang
- Department of Anatomy, College of Medicine, Chang Gung University, 259 Wenhua 1st Rd., Guishan Dist, Taoyuan City, 33302, Taiwan. .,Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan. .,Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan.
| |
Collapse
|
29
|
Kelly GT, Faraj R, Zhang Y, Maltepe E, Fineman JR, Black SM, Wang T. Pulmonary Endothelial Mechanical Sensing and Signaling, a Story of Focal Adhesions and Integrins in Ventilator Induced Lung Injury. Front Physiol 2019; 10:511. [PMID: 31105595 PMCID: PMC6498899 DOI: 10.3389/fphys.2019.00511] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 04/11/2019] [Indexed: 12/17/2022] Open
Abstract
Patients with critical illness such as acute lung injury often undergo mechanical ventilation in the intensive care unit. Though lifesaving in many instances, mechanical ventilation often results in ventilator induced lung injury (VILI), characterized by overdistension of lung tissue leading to release of edemagenic agents, which further damage the lung and contribute to the mortality and progression of pulmonary inflammation. The endothelium is particularly sensitive, as VILI associated mechanical stress results in endothelial cytoskeletal rearrangement, stress fiber formation, and integrity loss. At the heart of these changes are integrin tethered focal adhesions (FAs) which participate in mechanosensing, structure, and signaling. Here, we present the known roles of FA proteins including c-Src, talin, FAK, paxillin, vinculin, and integrins in the sensing and response to cyclic stretch and VILI associated stress. Attention is given to how stretch is propagated from the extracellular matrix through integrins to talin and other FA proteins, as well as signaling cascades that include FA proteins, leading to stress fiber formation and other cellular responses. This unifying picture of FAs aids our understanding in an effort to prevent and treat VILI.
Collapse
Affiliation(s)
- Gabriel T Kelly
- Department of Internal Medicine, College of Medicine Phoenix, The University of Arizona, Phoenix, AZ, United States
| | - Reem Faraj
- Department of Internal Medicine, College of Medicine Phoenix, The University of Arizona, Phoenix, AZ, United States
| | - Yao Zhang
- Department of Internal Medicine, College of Medicine Phoenix, The University of Arizona, Phoenix, AZ, United States
| | - Emin Maltepe
- Department of Pediatrics, University of California, San Francisco, San Francisco, CA, United States
| | - Jeffrey R Fineman
- Department of Pediatrics, University of California, San Francisco, San Francisco, CA, United States
| | - Stephen M Black
- Department of Medicine, College of Medicine, The University of Arizona, Tucson, AZ, United States
| | - Ting Wang
- Department of Internal Medicine, College of Medicine Phoenix, The University of Arizona, Phoenix, AZ, United States
| |
Collapse
|
30
|
Valianou M, Filippidou N, Johnson DL, Vogel P, Zhang EY, Liu X, Lu Y, Yu JJ, Bissler JJ, Astrinidis A. Rapalog resistance is associated with mesenchymal-type changes in Tsc2-null cells. Sci Rep 2019; 9:3015. [PMID: 30816188 PMCID: PMC6395747 DOI: 10.1038/s41598-019-39418-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/24/2019] [Indexed: 01/26/2023] Open
Abstract
Tuberous Sclerosis Complex (TSC) and Lymphangioleiomyomatosis (LAM) are caused by inactivating mutations in TSC1 or TSC2, leading to mTORC1 hyperactivation. The mTORC1 inhibitors rapamycin and analogs (rapalogs) are approved for treating of TSC and LAM. Due to their cytostatic and not cytocidal action, discontinuation of treatment leads to tumor regrowth and decline in pulmonary function. Therefore, life-long rapalog treatment is proposed for the control of TSC and LAM lesions, which increases the chances for the development of acquired drug resistance. Understanding the signaling perturbations leading to rapalog resistance is critical for the development of better therapeutic strategies. We developed the first Tsc2-null rapamycin-resistant cell line, ELT3-245, which is highly tumorigenic in mice, and refractory to rapamycin treatment. In vitro ELT3-245 cells exhibit enhanced anchorage-independent cell survival, resistance to anoikis, and loss of epithelial markers. A key alteration in ELT3-245 is increased β-catenin signaling. We propose that a subset of cells in TSC and LAM lesions have additional signaling aberrations, thus possess the potential to become resistant to rapalogs. Alternatively, when challenged with rapalogs TSC-null cells are reprogrammed to express mesenchymal-like markers. These signaling changes could be further exploited to induce clinically-relevant long-term remissions.
Collapse
Affiliation(s)
- Matthildi Valianou
- Division of Pediatric Nephrology, Department of Pediatrics, College of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, 38103, USA.,Tuberous Sclerosis Complex Center of Excellence, Le Bonheur Children's Hospital, Memphis, TN, 38103, USA
| | - Natalia Filippidou
- Division of Pediatric Nephrology, Department of Pediatrics, College of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, 38103, USA.,Tuberous Sclerosis Complex Center of Excellence, Le Bonheur Children's Hospital, Memphis, TN, 38103, USA
| | - Daniel L Johnson
- Office of Research Molecular Bioinformatics Core, University of Tennessee Health Sciences Center, Memphis, TN, 38103, USA
| | - Peter Vogel
- Department of Pathology, St Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Erik Y Zhang
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, 45267, USA
| | - Xiaolei Liu
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, 45267, USA
| | - Yiyang Lu
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, 45267, USA
| | - Jane J Yu
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, 45267, USA
| | - John J Bissler
- Division of Pediatric Nephrology, Department of Pediatrics, College of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, 38103, USA.,Tuberous Sclerosis Complex Center of Excellence, Le Bonheur Children's Hospital, Memphis, TN, 38103, USA.,Department of Pediatric Medicine, St Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Aristotelis Astrinidis
- Division of Pediatric Nephrology, Department of Pediatrics, College of Medicine, University of Tennessee Health Sciences Center, Memphis, TN, 38103, USA. .,Tuberous Sclerosis Complex Center of Excellence, Le Bonheur Children's Hospital, Memphis, TN, 38103, USA. .,Department of Immunotherapeutics and Biotechnology, School of Pharmacy, Texas Tech University Health Sciences Center, Abilene, TX, 79601, USA.
| |
Collapse
|
31
|
Ding X, Tong Y, Jin S, Chen Z, Li T, Billiar TR, Pitt BR, Li Q, Zhang LM. Mechanical ventilation enhances extrapulmonary sepsis-induced lung injury: role of WISP1-αvβ5 integrin pathway in TLR4-mediated inflammation and injury. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2018; 22:302. [PMID: 30445996 PMCID: PMC6240278 DOI: 10.1186/s13054-018-2237-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 10/15/2018] [Indexed: 12/19/2022]
Abstract
Background High tidal volume ventilation of healthy lungs or exacerbation of existing acute lung injury (ALI) by more moderate mechanical ventilation (MTV) produces ventilator-induced lung injury. It is less clear whether extrapulmonary sepsis sensitizes the lung to MTV. Methods We used a two-hit model of cecal ligation and puncture (CLP) followed 12 h later by MTV (10 ml/kg; 6 h) to determine whether otherwise noninjurious MTV enhances CLP-induced ALI by contrasting wildtype and TLR4−/− mice with respect to: alveolar-capillary permeability, histopathology and intrapulmonary levels of WNT-inducible secreted protein 1 (WISP1) and integrin β5; plasma levels of cytokines and chemokines (TNF-α, IL-6, MIP-2, MCP-1) and intrapulmonary neutrophil infiltration; and other inflammatory signaling via intrapulmonary activation of JNK, p38 and ERK. A separate cohort of mice was pretreated with intratracheal neutralizing antibodies to WISP1, integrin β5 or IgG as control and the presented phenotyping repeated in a two-hit model; there were 10 mice per group in these first three experiments. Also, isolated peritoneal macrophages (PM) from wildtype and TLR4−/−, MyD88−/− and TRIF−/− mice were used to identify a WISP1–TLR4–integrin β5 pathway; and the requisite role of integrin β5 in WISP1-induced cytokine and chemokine production in LPS-primed PM was examined by siRNA treatment. Results MTV, that in itself did not cause ALI, exacerbated increases in alveolar-capillary permeability, histopathologic scoring and indices of pulmonary inflammation in mice that previously underwent CLP; the effects of this two-hit model were abrogated in TLR4−/− mice. Attendant with these findings was a significant increase in intrapulmonary WISP1 and integrin β5 in the two-hit model. Anti-WISP1 or anti-integrin β5 antibodies partially inhibited the two-hit phenotype. In PM, activation of TLR4 led to an increase in integrin β5 expression that was MyD88 and NF-κB dependent. Recombinant WISP1 increased LPS-induced cytokine release in PM that was inhibited by silencing either TLR4 or integrin β5. Conclusions These data show for the first time that otherwise noninjurious mechanical ventilation can exacerbate ALI due to extrapulmonary sepsis underscoring a potential interactive contribution of common events (sepsis and mechanical ventilation) in critical care, and that a WISP1–TLR4–integrin β5 pathway contributes to this phenomenon. Electronic supplementary material The online version of this article (10.1186/s13054-018-2237-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Xibing Ding
- Department of Anesthesiology, East Hospital, Tongji University School of Medicine, 150 Jimo Road, Pudong, Shanghai, China.,Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Department of Anesthesiology, University of Pittsburgh School of Medicine, 200 Lothrop St. UPMC MUH N467, Pittsburgh, 15213, PA, USA.,Department of Anesthesiology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yao Tong
- Department of Anesthesiology, East Hospital, Tongji University School of Medicine, 150 Jimo Road, Pudong, Shanghai, China
| | - Shuqing Jin
- Department of Anesthesiology, East Hospital, Tongji University School of Medicine, 150 Jimo Road, Pudong, Shanghai, China.,Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Zhixia Chen
- Department of Anesthesiology, East Hospital, Tongji University School of Medicine, 150 Jimo Road, Pudong, Shanghai, China
| | - Tunliang Li
- Department of Anesthesiology, Xiangya 3rd Hospital, Central South University, Hunan, China.,Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Timothy R Billiar
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Bruce R Pitt
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School Public Health, Pittsburgh, PA, USA
| | - Quan Li
- Department of Anesthesiology, East Hospital, Tongji University School of Medicine, 150 Jimo Road, Pudong, Shanghai, China. .,Department of Anesthesiology, Cancer Hospital Chinese Academy of Medical Sciences, Shenzhen, China.
| | - Li-Ming Zhang
- Department of Anesthesiology, University of Pittsburgh School of Medicine, 200 Lothrop St. UPMC MUH N467, Pittsburgh, 15213, PA, USA.
| |
Collapse
|
32
|
Huang R, Rofstad EK. Integrins as therapeutic targets in the organ-specific metastasis of human malignant melanoma. J Exp Clin Cancer Res 2018; 37:92. [PMID: 29703238 PMCID: PMC5924434 DOI: 10.1186/s13046-018-0763-x] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 04/16/2018] [Indexed: 02/07/2023] Open
Abstract
Integrins are a large family of adhesion molecules that mediate cell-cell and cell-extracellular matrix interactions. Among the 24 integrin isoforms, many have been found to be associated with tumor angiogenesis, tumor cell migration and proliferation, and metastasis. Integrins, especially αvβ3, αvβ5 and α5β1, participate in mediating tumor angiogenesis by interacting with the vascular endothelial growth factor and angiopoietin-Tie signaling pathways. Melanoma patients have a poor prognosis when the primary tumor has generated distant metastases, and the melanoma metastatic site is an independent predictor of the survival of these patients. Different integrins on the melanoma cell surface preferentially direct circulating melanoma cells to different organs and promote the development of metastases at specific organ sites. For instance, melanoma cells expressing integrin β3 tend to metastasize to the lungs, whereas those expressing integrin β1 preferentially generate lymph node metastases. Moreover, tumor cell-derived exosomes which contain different integrins may prepare a pre-metastatic niche in specific organs and promote organ-specific metastases. Because of the important role that integrins play in tumor angiogenesis and metastasis, they have become promising targets for the treatment of advanced cancer. In this paper, we review the integrin isoforms responsible for angiogenesis and organ-specific metastasis in malignant melanoma and the inhibitors that have been considered for the future treatment of metastatic disease.
Collapse
Affiliation(s)
- Ruixia Huang
- Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Ullernchausseen 70, 0379, Oslo, Norway.
| | - Einar K Rofstad
- Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Ullernchausseen 70, 0379, Oslo, Norway
| |
Collapse
|
33
|
Desu HR, Thoma LA, Wood GC. Nebulization of Cyclic Arginine-Glycine-(D)-Aspartic Acid-Peptide Grafted and Drug Encapsulated Liposomes for Inhibition of Acute Lung Injury. Pharm Res 2018. [PMID: 29536186 DOI: 10.1007/s11095-018-2366-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
PURPOSE Acute lung injury (ALI) is a fatal syndrome in critically ill patients. It is characterized by lung edema and inflammation. Numerous pro-inflammatory mediators are released into alveoli. Among them, interleukin-1beta (IL-1β) causes an increase in solute permeability across the alveolar-capillary barrier leading to edema. It activates key effector cells (alveolar epithelial and endothelial cells) releasing inflammatory chemokines and cytokines. The purpose of the study was to demonstrate that nebulized liposomes inhibit ALI in vivo. METHODS In vivo ALI model was simulated through intra-tracheal instillation of IL-1β solution (100 μg/mL in PBS, pH 7.2, 200 μL) in male Sprague-Dawley rats. Various formulations were tested in ALI induced rats. These formulations include plain liposomes (PL), methylprednisolone sodium succinate solution (MPS solution), cRGD-peptide grafted liposomes (LcRGD) and methylprednisolone sodium succinate encapsulated and cRGD-peptide grafted liposomes (MPS-LcRGD). Formulations were nebulized in vivo in rats using micro-pump nebulizer. RESULTS Liposome formulations exhibited higher levels of drug concentration in lungs. The physicochemical parameters demonstrated that the liposome formulations were stable. On the basis of aerodynamic droplet-size, nebulized formulations were estimated to deposit in different regions of respiratory tract, especially alveolar region, Among the formulations, MPS-LcRGD caused significant reduction of edema, neutrophil infiltration and inflammation biochemical marker levels. CONCLUSION From the results, it can be inferred that nebulization of targeted liposomes had facilitated spatial and temporal modulation of drug delivery resulting in alleviation of ALI.
Collapse
Affiliation(s)
- Hari R Desu
- Intera Healthcare, IKP Knowledge Park, Genome Valley, Shameerpet, Hyderabad, TS, 500101, India.
| | - Laura A Thoma
- Plough Center for Sterile Drug Delivery Systems, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - George C Wood
- Department of Pharmaceutical Sciences, The University of Tennessee Health Science Center, Memphis, Tennessee, USA
| |
Collapse
|
34
|
Hatley RJD, Macdonald SJF, Slack RJ, Le J, Ludbrook SB, Lukey PT. An αv-RGD Integrin Inhibitor Toolbox: Drug Discovery Insight, Challenges and Opportunities. Angew Chem Int Ed Engl 2018; 57:3298-3321. [DOI: 10.1002/anie.201707948] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Richard J. D. Hatley
- Fibrosis DPU; Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY UK
| | - Simon J. F. Macdonald
- Fibrosis DPU; Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY UK
| | - Robert J. Slack
- Fibrosis DPU; Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY UK
| | - Joelle Le
- Fibrosis DPU; Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY UK
| | - Steven B. Ludbrook
- Fibrosis DPU; Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY UK
| | - Pauline T. Lukey
- Fibrosis DPU; Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY UK
| |
Collapse
|
35
|
Hatley RJD, Macdonald SJF, Slack RJ, Le J, Ludbrook SB, Lukey PT. Ein Instrumentarium von αv-RGD-Integrin-Inhibitoren: Wirkstoffsuche, Herausforderungen und Möglichkeiten. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201707948] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Richard J. D. Hatley
- Fibrosis and Lung Injury DPU, Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY Großbritannien
| | - Simon J. F. Macdonald
- Fibrosis and Lung Injury DPU, Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY Großbritannien
| | - Robert J. Slack
- Fibrosis and Lung Injury DPU, Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY Großbritannien
| | - Joelle Le
- Fibrosis and Lung Injury DPU, Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY Großbritannien
| | - Steven B. Ludbrook
- Fibrosis and Lung Injury DPU, Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY Großbritannien
| | - Pauline T. Lukey
- Fibrosis and Lung Injury DPU, Respiratory Therapeutic Area; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY Großbritannien
| |
Collapse
|
36
|
Lin Z, He R, Luo H, Lu C, Ning Z, Wu Y, Han C, Tan G, Wang Z. Integrin-β5, a miR-185-targeted gene, promotes hepatocellular carcinoma tumorigenesis by regulating β-catenin stability. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:17. [PMID: 29386044 PMCID: PMC5793391 DOI: 10.1186/s13046-018-0691-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 01/24/2018] [Indexed: 12/15/2022]
Abstract
Background The tumour microenvironment is essential for cancer progress and metastasis. Integrin-β5 (ITGB5), a member of the integrin family, has been implicated to mediate the interactions of cells with the extracellular matrix (ECM) and promote tumorigenesis in several malignancies. However, the role of ITGB5 in hepatocellular carcinoma (HCC) is still unknown. Methods The biological function of ITGB5 in HCC was investigated using migration, colony formation assays. The potential molecular mechanism of ITGB5 in regulating HCC tumorigenesis and β-catenin stabilization was investigated by western blotting, co-immunoprecipitation and ubiquitination assays. The expression level of ITGB5 mediated by miR-185 was confirmed by bioinformatic analysis, luciferase assay. The clinical significance of ITGB5 was based on human tissue microarray (TMA) analysis. Results Here, we found that the expression of ITGB5 is increased in HCC tissues. Elevated ITGB5 markedly facilitates HCC cell migration and tumorigenesis in vitro and in vivo. Further mechanistic studies revealed that ITGB5, as a partner of β-catenin, directly interacts with β-catenin and inhibits its degradation, thus leading to WNT/β-catenin activity. Subsequently, we also found that ITGB5 is a direct targeted gene of miR-185. The downregulation of miR-185 in HCC cells promotes an increase in ITGB5. An additional increase of ITGB5 is associated with β-catenin upregulation and a miR-185 decrease in HCC tissues. Conclusions Our data reveal that the miR-185-ITGB5-β-catenin pathway plays an important role in HCC tumorigenesis, and ITGB5 may be a promising specific target for HCC therapy. Electronic supplementary material The online version of this article (10.1186/s13046-018-0691-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Zhikun Lin
- Department of Hepatobiliary Surgery of the First Affiliated Hospital& Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116027, China
| | - Ruiping He
- Department of Hepatobiliary Surgery of the First Affiliated Hospital& Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116027, China
| | - Haifeng Luo
- Department of Hepatobiliary Surgery of the First Affiliated Hospital& Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116027, China
| | - Chang Lu
- Department of Hepatobiliary Surgery of the First Affiliated Hospital& Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116027, China
| | - Zhen Ning
- Department of Hepatobiliary Surgery of the First Affiliated Hospital& Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116027, China
| | - Yuanhang Wu
- Department of Oncology of the First Affiliated Hospital, Dalian Medical University, Dalian, 116027, China
| | - Chuanchun Han
- Department of Hepatobiliary Surgery of the First Affiliated Hospital& Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116027, China.
| | - Guang Tan
- Department of Hepatobiliary Surgery of the First Affiliated Hospital& Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116027, China.
| | - Zhongyu Wang
- Department of Hepatobiliary Surgery of the First Affiliated Hospital& Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116027, China.
| |
Collapse
|
37
|
Shaver CM, Wickersham N, McNeil JB, Nagata H, Miller A, Landstreet SR, Kuck JL, Diamond JM, Lederer DJ, Kawut SM, Palmer SM, Wille KM, Weinacker A, Lama VN, Crespo MM, Orens JB, Shah PD, Hage CA, Cantu E, Porteous MK, Dhillon G, McDyer J, Bastarache JA, Christie JD, Ware LB. Cell-free hemoglobin promotes primary graft dysfunction through oxidative lung endothelial injury. JCI Insight 2018; 3:98546. [PMID: 29367464 DOI: 10.1172/jci.insight.98546] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 12/19/2017] [Indexed: 12/31/2022] Open
Abstract
Primary graft dysfunction (PGD) is acute lung injury within 72 hours of lung transplantation. We hypothesized that cell-free hemoglobin (CFH) contributes to PGD by increasing lung microvascular permeability and tested this in patients, ex vivo human lungs, and cultured human lung microvascular endothelial cells. In a nested case control study of 40 patients with severe PGD at 72 hours and 80 matched controls without PGD, elevated preoperative CFH was independently associated with increased PGD risk (odds ratio [OR] 2.75, 95%CI, 1.23-6.16, P = 0.014). The effect of CFH on PGD was magnified by reperfusion fraction of inspired oxygen (FiO2) ≥ 0.40 (OR 3.41, P = 0.031). Isolated perfused human lungs exposed to intravascular CFH (100 mg/dl) developed increased vascular permeability as measured by lung weight (CFH 14.4% vs. control 0.65%, P = 0.047) and extravasation of Evans blue-labeled albumin dye (EBD) into the airspace (P = 0.027). CFH (1 mg/dl) also increased paracellular permeability of human pulmonary microvascular endothelial cell monolayers (hPMVECs). Hyperoxia (FiO2 = 0.95) increased human lung and hPMVEC permeability compared with normoxia (FiO2 = 0.21). Treatment with acetaminophen (15 μg/ml), a specific hemoprotein reductant, prevented CFH-dependent permeability in human lungs (P = 0.046) and hPMVECs (P = 0.037). In summary, CFH may mediate PGD through oxidative effects on microvascular permeability, which are augmented by hyperoxia and abrogated by acetaminophen.
Collapse
Affiliation(s)
- Ciara M Shaver
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Nancy Wickersham
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - J Brennan McNeil
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Hiromasa Nagata
- Department of Anesthesiology, Keio University School of Medicine, Tokyo, Japan
| | - Adam Miller
- Tennessee Donor Services, Nashville, Tennessee, USA
| | - Stuart R Landstreet
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jamie L Kuck
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Joshua M Diamond
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - David J Lederer
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University School of Medicine, New York, New York, USA
| | - Steven M Kawut
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Scott M Palmer
- Division of Pulmonary and Critical Care Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Keith M Wille
- Division of Pulmonary and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Ann Weinacker
- Division of Pulmonary and Critical Care Medicine, Stanford University Medical Center, Palo Alto, California, USA
| | - Vibha N Lama
- Division of Pulmonary and Critical Care Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Maria M Crespo
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jonathan B Orens
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University Medical Center, Baltimore, Maryland, USA
| | - Pali D Shah
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University Medical Center, Baltimore, Maryland, USA
| | - Chadi A Hage
- Division of Pulmonary, Allergy, Critical Care, and Occupational Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Edward Cantu
- Division of Cardiovascular Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Mary K Porteous
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Gundeep Dhillon
- Division of Pulmonary and Critical Care Medicine, Stanford University Medical Center, Palo Alto, California, USA
| | - John McDyer
- Division of Pulmonary, Allergy, and Critical Care, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Julie A Bastarache
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jason D Christie
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lorraine B Ware
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | | |
Collapse
|
38
|
Hamacher J, Hadizamani Y, Borgmann M, Mohaupt M, Männel DN, Moehrlen U, Lucas R, Stammberger U. Cytokine-Ion Channel Interactions in Pulmonary Inflammation. Front Immunol 2018; 8:1644. [PMID: 29354115 PMCID: PMC5758508 DOI: 10.3389/fimmu.2017.01644] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 11/10/2017] [Indexed: 12/12/2022] Open
Abstract
The lungs conceptually represent a sponge that is interposed in series in the bodies’ systemic circulation to take up oxygen and eliminate carbon dioxide. As such, it matches the huge surface areas of the alveolar epithelium to the pulmonary blood capillaries. The lung’s constant exposure to the exterior necessitates a competent immune system, as evidenced by the association of clinical immunodeficiencies with pulmonary infections. From the in utero to the postnatal and adult situation, there is an inherent vital need to manage alveolar fluid reabsorption, be it postnatally, or in case of hydrostatic or permeability edema. Whereas a wealth of literature exists on the physiological basis of fluid and solute reabsorption by ion channels and water pores, only sparse knowledge is available so far on pathological situations, such as in microbial infection, acute lung injury or acute respiratory distress syndrome, and in the pulmonary reimplantation response in transplanted lungs. The aim of this review is to discuss alveolar liquid clearance in a selection of lung injury models, thereby especially focusing on cytokines and mediators that modulate ion channels. Inflammation is characterized by complex and probably time-dependent co-signaling, interactions between the involved cell types, as well as by cell demise and barrier dysfunction, which may not uniquely determine a clinical picture. This review, therefore, aims to give integrative thoughts and wants to foster the unraveling of unmet needs in future research.
Collapse
Affiliation(s)
- Jürg Hamacher
- Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland.,Internal Medicine V - Pneumology, Allergology, Respiratory and Environmental Medicine, Faculty of Medicine, Saarland University, Saarbrücken, Germany.,Lungen- und Atmungsstiftung Bern, Bern, Switzerland
| | - Yalda Hadizamani
- Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland.,Lungen- und Atmungsstiftung Bern, Bern, Switzerland
| | - Michèle Borgmann
- Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland.,Lungen- und Atmungsstiftung Bern, Bern, Switzerland
| | - Markus Mohaupt
- Internal Medicine, Sonnenhofspital Bern, Bern, Switzerland
| | | | - Ueli Moehrlen
- Paediatric Visceral Surgery, Universitäts-Kinderspital Zürich, Zürich, Switzerland
| | - Rudolf Lucas
- Department of Pharmacology and Toxicology, Vascular Biology Center, Medical College of Georgia, Augusta, GA, United States
| | - Uz Stammberger
- Lungen- und Atmungsstiftung Bern, Bern, Switzerland.,Novartis Institutes for Biomedical Research, Translational Clinical Oncology, Novartis Pharma AG, Basel, Switzerland
| |
Collapse
|
39
|
Zhang D, Zhou J, Ye LC, Li J, Wu Z, Li Y, Li C. Autophagy maintains the integrity of endothelial barrier in LPS-induced lung injury. J Cell Physiol 2018; 233:688-698. [PMID: 28328069 DOI: 10.1002/jcp.25928] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 03/21/2017] [Indexed: 12/26/2022]
Abstract
Understanding the role and underlying regulation mechanism of autophagy in lipopolysaccharide-induced lung injury (LPS-LI) may provide potentially new pharmacological targets for treatment of acute lung injury. The aim of this study was to investigate the functional significance of autophagy in LPS-LI. The autophagy of human pulmonary microvascular endothelial cells (HPMVECs) and mice was inhibited before they were challenged with LPS. In vitro, permeability, vitality, and the LDH release rate of the cells were detected, the zonula occluden-1 (ZO-1) expression and the stress fiber formation were determined. In vivo, the lung injury was assessed. We found LPS caused high permeability and increased lactate dehydrogenase (LDH) release rate, lowered viability of the cells, inhibited the ZO-1 expression and induced stress fiber formation, these effects were further aggravated by prohibiting the level of autophagy. Consistently, in in vivo experiments, LPS-induced serious lung injury, which was reflected as edema, leukocyte infiltration and hemorrhage in lung tissue, and the high concentration of pro-inflammation cytokines tumor necrosis factor (TNF)-α and interleukin (IL)-1β in bronchoalveolar lavage fluid (BALF). Inhibiting autophagy further exacerbated LPS-LI. It appears that autophagy played a protective role in LPS-LI in part through restricting the injury of lung microvascular barrier.
Collapse
Affiliation(s)
- Dan Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, P.R. China
| | - Jian Zhou
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, P.R. China
| | - Le Chi Ye
- Department of Oncological Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, P.R. China
| | - Jing Li
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, P.R. China
| | - Zhenzhou Wu
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, P.R. China
| | - Yuping Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, P.R. China
| | - Chichi Li
- Department of Plastic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, P.R. China
| |
Collapse
|
40
|
Abstract
Primary graft dysfunction is a form of acute injury after lung transplantation that is associated with significant short- and long-term morbidity and mortality. Multiple mechanisms contribute to the pathogenesis of primary graft dysfunction, including ischemia reperfusion injury, epithelial cell death, endothelial cell dysfunction, innate immune activation, oxidative stress, and release of inflammatory cytokines and chemokines. This article reviews the epidemiology, pathogenesis, risk factors, prevention, and treatment of primary graft dysfunction.
Collapse
Affiliation(s)
- Mary K Porteous
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA; Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, 423 Guardian Drive, Philadelphia, PA 19104, USA.
| | - James C Lee
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| |
Collapse
|
41
|
Abstract
PURPOSE OF REVIEW Lungs are extremely susceptible to injury, and despite advances in surgical management and immunosuppression, outcomes for lung transplantation are the worst of any solid organ transplant. The success of lung transplantation is limited by high rates of primary graft dysfunction because of ischemia-reperfusion injury characterized by robust inflammation, alveolar damage, and vascular permeability. This review will summarize major mechanisms of lung ischemia-reperfusion injury with a focus on the most recent findings in this area. RECENT FINDINGS Over the past 18 months, numerous studies have described strategies to limit lung ischemia-reperfusion injury in experimental settings, which often reveal mechanistic insight. Many of these strategies involved the use of various antioxidants, anti-inflammatory agents, mesenchymal stem cells, and ventilation with gaseous molecules. Further advancements have been achieved in understanding mechanisms of innate immune cell activation, neutrophil infiltration, endothelial barrier dysfunction, and oxidative stress responses. SUMMARY Methods for prevention of primary graft dysfunction after lung transplant are urgently needed, and understanding mechanisms of ischemia-reperfusion injury is critical for the development of novel and effective therapeutic approaches. In doing so, both acute and chronic outcomes of lung transplant recipients will be significantly improved.
Collapse
|
42
|
A Perfect Storm: Increased Colonization and Failure of Vaccination Leads to Severe Secondary Bacterial Infection in Influenza Virus-Infected Obese Mice. mBio 2017; 8:mBio.00889-17. [PMID: 28928207 PMCID: PMC5605935 DOI: 10.1128/mbio.00889-17] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Obesity is a risk factor for developing severe disease following influenza virus infection; however, the comorbidity of obesity and secondary bacterial infection, a serious complication of influenza virus infections, is unknown. To fill this gap in knowledge, lean and obese C57BL/6 mice were infected with a nonlethal dose of influenza virus followed by a nonlethal dose of Streptococcus pneumoniae Strikingly, not only did significantly enhanced death occur in obese coinfected mice compared to lean controls, but also high mortality was seen irrespective of influenza virus strain, bacterial strain, or timing of coinfection. This result was unexpected, given that most influenza virus strains, especially seasonal human A and B viruses, are nonlethal in this model. Both viral and bacterial titers were increased in the upper respiratory tract and lungs of obese animals as early as days 1 and 2 post-bacterial infection, leading to a significant decrease in lung function. This increased bacterial load correlated with extensive cellular damage and upregulation of platelet-activating factor receptor, a host receptor central to pneumococcal invasion. Importantly, while vaccination of obese mice against either influenza virus or pneumococcus failed to confer protection, antibiotic treatment was able to resolve secondary bacterial infection-associated mortality. Overall, secondary bacterial pneumonia could be a widespread, unaddressed public health problem in an increasingly obese population.IMPORTANCE Worldwide obesity rates have continued to increase. Obesity is associated with increased severity of influenza virus infection; however, very little is known about respiratory coinfections in this expanding, high-risk population. Our studies utilized a coinfection model to show that obesity increases mortality from secondary bacterial infection following influenza virus challenge through a "perfect storm" of host factors that lead to excessive viral and bacterial outgrowth. In addition, we found that vaccination of obese mice against either virus or bacteria failed to confer protection against coinfection, but antibiotic treatment did alleviate mortality. Combined, these results represent an understudied and imminent public health concern in a weighty portion of the global population.
Collapse
|
43
|
Zhang D, Li C, Song Y, Zhou J, Li Y, Li J, Bai C. Integrin αvβ5 inhibition protects against ischemia-reperfusion-induced lung injury in an autophagy-dependent manner. Am J Physiol Lung Cell Mol Physiol 2017; 313:L384-L394. [PMID: 28522565 DOI: 10.1152/ajplung.00391.2016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 04/03/2017] [Accepted: 05/16/2017] [Indexed: 11/22/2022] Open
Abstract
Integrin αvβ5 mediates pulmonary endothelial barrier function and acute lung injury (LI), but its roles in cell apoptosis and autophagy are unclear. Thus, the aims of this study were to investigate the significance of αvβ5 in ischemia-reperfusion (I/R)-induced apoptosis and LI and to explore the relationship between αvβ5 and autophagy. Human pulmonary microvascular endothelial cells (HPMVECs) were pretreated with an αvβ5-blocking antibody (ALULA) and challenged with oxygen-glucose deprivation/oxygen-glucose restoration, which mimics I/R; then, cellular autophagy and apoptosis were detected, and cell permeability was assessed. In vivo, mice were pretreated with the autophagy inhibitor chloroquine (CLQ), followed by treatment with ALULA. The mice then underwent operative lung I/R. LI was assessed by performing a pathological examination, calculating the wet/dry lung weight ratio and detecting the bronchial alveolar lavage fluid (BALF) protein concentration. αvβ5 inhibition promoted HPMVEC autophagy under I/R in vitro, alleviated cell permeability, decreased the apoptosis ratio, and activated caspase-3 expression. These outcomes were significantly diminished when autophagy was inhibited with a small-interfering RNA construct targeting autophagy-related gene 7 (siATG7). Moreover, ALULA pretreatment alleviated I/R-induced LI (I/R-LI), which manifested as a decreased wet/dry lung weight ratio, an altered BALF protein concentration, and lung edema. Preinhibiting autophagy with CLQ, however, eliminated the protective effects of ALULA on I/R-LI. Therefore, inhibiting αvβ5 effectively ameliorated I/R-induced endothelial cell apoptosis and I/R-LI. This process was dependent on improved autophagy and its inhibitory effects on activated caspase-3.
Collapse
Affiliation(s)
- Dan Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, China
| | - Chichi Li
- Department of Plastic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, China
| | - Yuanlin Song
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Respiratory Research Institute, Shanghai, China; and
| | - Jian Zhou
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Respiratory Research Institute, Shanghai, China; and
| | - Yuping Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Wenzhou City, Zhejiang Province, China
| | - Jing Li
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Respiratory Research Institute, Shanghai, China; and
| | - Chunxue Bai
- Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China; .,Shanghai Respiratory Research Institute, Shanghai, China; and.,State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, Guangdong Province, China
| |
Collapse
|
44
|
Vascular Permeability Drives Susceptibility to Influenza Infection in a Murine Model of Sickle Cell Disease. Sci Rep 2017; 7:43308. [PMID: 28256526 PMCID: PMC5335717 DOI: 10.1038/srep43308] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 01/25/2017] [Indexed: 01/01/2023] Open
Abstract
Sickle cell disease (SCD) is a major global health concern. Patients with SCD experience disproportionately greater morbidity and mortality in response to influenza infection than do others. Viral infection is one contributing factor for the development of Acute Chest Syndrome (ACS), a major cause of morbidity and mortality in SCD patients. We determined whether the heightened sensitivity to influenza infection could be reproduced in the two different SCD murine models to ascertain the underlying mechanisms of increased disease severity. In agreement with clinical observations, we found that both genetic and bone marrow-transplanted SCD mice had greater mortality in response to influenza infection than did wild-type animals. Despite similar initial viral titers and inflammatory responses between wild-type and SCD animals during infection, SCD mice continued to deteriorate and failed to resolve the infection, resulting in increased mortality. Histopathology of the lung tissues revealed extensive pulmonary edema and vascular damage following infection, a finding confirmed by heightened vascular permeability following virus challenge. These findings implicate the development of exacerbated pulmonary permeability following influenza challenge as the primary factor underlying heightened mortality. These studies highlight the need to focus on prevention and control strategies against influenza infection in the SCD population.
Collapse
|
45
|
Franco-Barraza J, Francescone R, Luong T, Shah N, Madhani R, Cukierman G, Dulaimi E, Devarajan K, Egleston BL, Nicolas E, Katherine Alpaugh R, Malik R, Uzzo RG, Hoffman JP, Golemis EA, Cukierman E. Matrix-regulated integrin α vβ 5 maintains α 5β 1-dependent desmoplastic traits prognostic of neoplastic recurrence. eLife 2017; 6. [PMID: 28139197 PMCID: PMC5283834 DOI: 10.7554/elife.20600] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Accepted: 01/05/2017] [Indexed: 12/18/2022] Open
Abstract
Desmoplasia, a fibrotic mass including cancer-associated fibroblasts (CAFs) and self-sustaining extracellular matrix (D-ECM), is a puzzling feature of pancreatic ductal adenocarcinoma (PDACs). Conflicting studies have identified tumor-restricting and tumor-promoting roles of PDAC-associated desmoplasia, suggesting that individual CAF/D-ECM protein constituents have distinguishable tumorigenic and tumor-repressive functions. Using 3D culture of normal pancreatic versus PDAC-associated human fibroblasts, we identified a CAF/D-ECM phenotype that correlates with improved patient outcomes, and that includes CAFs enriched in plasma membrane-localized, active α5β1-integrin. Mechanistically, we established that TGFβ is required for D-ECM production but dispensable for D-ECM-induced naïve fibroblast-to-CAF activation, which depends on αvβ5-integrin redistribution of pFAK-independent active α5β1-integrin to assorted endosomes. Importantly, the development of a simultaneous multi-channel immunofluorescence approach and new algorithms for computational batch-analysis and their application to a human PDAC panel, indicated that stromal localization and levels of active SMAD2/3 and α5β1-integrin distinguish patient-protective from patient-detrimental desmoplasia and foretell tumor recurrences, suggesting a useful new prognostic tool. DOI:http://dx.doi.org/10.7554/eLife.20600.001 Tumors are not entirely made out of cancerous cells. They contain many other components – referred to as tumor stroma – that may either encourage or hinder the tumor’s growth. Tumor stroma includes non-cancerous cells and a framework of fibrous sugary proteins, called the extracellular matrix, which surround and signal to cells while providing physical support. In the most common and aggressive form of pancreatic cancer, the stroma often makes up the majority of the tumor’s mass. Sometimes the stroma of these pancreatic tumors can protect the cancer cells from anti-cancer drugs. Researchers have therefore been interested in finding out exactly which aspects of the tumor stroma shield and support cancer cells, and which impede their growth and progression. Answering these questions could make it possible to develop new drugs that will change a tumor-supporting stroma into one that hinders the tumor’s growth and spread. The most abundant cells in the stroma of pancreatic tumors are called cancer-associated fibroblasts. Healthy specialized fibroblasts – known as pancreatic stellate cells – help to build and maintain the ‘normal’ extracellular matrix and so these cells normally restrict a tumor’s development. However, cancer cells can adapt healthy fibroblasts into cancer-associated fibroblasts, which produce an altered extracellular matrix that could allow the tumor to grow. Franco-Barraza et al. have now compared healthy and cancer-associated fibroblasts from patients’ pancreatic tumors. One of the main differences between these two cell types was the location of the activated form of a molecule called α5β1-integrin. Healthy fibroblasts, in a normal extracellular matrix, have active α5β1-integrin on the surface of the cell. However, a number of tumor-promoting signals, including some from the altered extracellular matrix, could force the active α5β1-integrins to relocate inside the fibroblasts instead. In further experiments, where the activated integrin was retained at the cell surface, the fibroblasts were able to resist the influence of the cancer-associated extracellular matrix. Then again, if the active α5β1-integrins were directed inside the cells, healthy cells turned into cancer-associated fibroblasts. With this information in hand, Franco-Barraza et al. examined tumor samples from over a hundred pancreatic cancer patients using a new microscopy-based technique that distinguishes cancer cells from stroma cells. The analysis confirmed the pattern observed in the laboratory: those patients who appeared to produce more normal extracellular matrix and have active α5β1-integrin localized mostly to the surface of the cells survived longer without the cancer returning than those patients who lacked these stroma traits. Samples from patients with kidney cancer also showed similar results and, as before, an altered extracellular matrix was linked to a worse outcome of the disease. Together these findings suggest that if future studies uncover ways to relocate or maintain active α5β1-integrin to the cell surface of fibroblasts they could lead to new treatments to restrict the growth of tumors in cancer patients. DOI:http://dx.doi.org/10.7554/eLife.20600.002
Collapse
Affiliation(s)
| | - Ralph Francescone
- Department of Cancer Biology, Fox Chase Cancer Center, Philadelphia, United States
| | - Tiffany Luong
- Department of Cancer Biology, Fox Chase Cancer Center, Philadelphia, United States
| | - Neelima Shah
- Department of Cancer Biology, Fox Chase Cancer Center, Philadelphia, United States
| | - Raj Madhani
- Department of Cancer Biology, Fox Chase Cancer Center, Philadelphia, United States
| | - Gil Cukierman
- Department of Cancer Biology, Fox Chase Cancer Center, Philadelphia, United States
| | - Essel Dulaimi
- Department of Pathology, Fox Chase Cancer Center, Philadelphia, United States
| | - Karthik Devarajan
- Department of Cancer Epigenetics, Fox Chase Cancer Center, Philadelphia, United States
| | - Brian L Egleston
- Department of Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, United States
| | - Emmanuelle Nicolas
- Programs in Genomics, Fox Chase Cancer Center, Philadelphia, United States
| | | | - Ruchi Malik
- Department of Cancer Biology, Fox Chase Cancer Center, Philadelphia, United States
| | - Robert G Uzzo
- Department of Cancer Biology, Fox Chase Cancer Center, Philadelphia, United States.,Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, United States
| | - John P Hoffman
- Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, United States
| | - Erica A Golemis
- Department of Molecular Therapeutics, Fox Chase Cancer Center, Philadelphia, United States
| | - Edna Cukierman
- Department of Cancer Biology, Fox Chase Cancer Center, Philadelphia, United States
| |
Collapse
|
46
|
McCurley A, Alimperti S, Campos-Bilderback SB, Sandoval RM, Calvino JE, Reynolds TL, Quigley C, Mugford JW, Polacheck WJ, Gomez IG, Dovey J, Marsh G, Huang A, Qian F, Weinreb PH, Dolinski BM, Moore S, Duffield JS, Chen CS, Molitoris BA, Violette SM, Crackower MA. Inhibition of αv β5 Integrin Attenuates Vascular Permeability and Protects against Renal Ischemia-Reperfusion Injury. J Am Soc Nephrol 2017; 28:1741-1752. [PMID: 28062569 DOI: 10.1681/asn.2016020200] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 11/22/2016] [Indexed: 01/28/2023] Open
Abstract
Ischemia-reperfusion injury (IRI) is a leading cause of AKI. This common clinical complication lacks effective therapies and can lead to the development of CKD. The αvβ5 integrin may have an important role in acute injury, including septic shock and acute lung injury. To examine its function in AKI, we utilized a specific function-blocking antibody to inhibit αvβ5 in a rat model of renal IRI. Pretreatment with this anti-αvβ5 antibody significantly reduced serum creatinine levels, diminished renal damage detected by histopathologic evaluation, and decreased levels of injury biomarkers. Notably, therapeutic treatment with the αvβ5 antibody 8 hours after IRI also provided protection from injury. Global gene expression profiling of post-ischemic kidneys showed that αvβ5 inhibition affected established injury markers and induced pathway alterations previously shown to be protective. Intravital imaging of post-ischemic kidneys revealed reduced vascular leak with αvβ5 antibody treatment. Immunostaining for αvβ5 in the kidney detected evident expression in perivascular cells, with negligible expression in the endothelium. Studies in a three-dimensional microfluidics system identified a pericyte-dependent role for αvβ5 in modulating vascular leak. Additional studies showed αvβ5 functions in the adhesion and migration of kidney pericytes in vitro Initial studies monitoring renal blood flow after IRI did not find significant effects with αvβ5 inhibition; however, future studies should explore the contribution of vasomotor effects. These studies identify a role for αvβ5 in modulating injury-induced renal vascular leak, possibly through effects on pericyte adhesion and migration, and reveal αvβ5 inhibition as a promising therapeutic strategy for AKI.
Collapse
Affiliation(s)
| | - Stella Alimperti
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts.,The Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts
| | - Silvia B Campos-Bilderback
- Indiana University School of Medicine, The Roudebush Veterans Affair Medical Center, Indiana Center for Biological Microscopy, Indianapolis, Indiana; and
| | - Ruben M Sandoval
- Indiana University School of Medicine, The Roudebush Veterans Affair Medical Center, Indiana Center for Biological Microscopy, Indianapolis, Indiana; and
| | | | | | | | | | - William J Polacheck
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts.,The Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts
| | | | | | | | | | - Fang Qian
- Biogen Inc., Cambridge, Massachusetts
| | | | | | | | | | - Christopher S Chen
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts.,The Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts
| | - Bruce A Molitoris
- Indiana University School of Medicine, The Roudebush Veterans Affair Medical Center, Indiana Center for Biological Microscopy, Indianapolis, Indiana; and.,Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana
| | | | | |
Collapse
|
47
|
Khalifeh-Soltani A, Gupta D, Ha A, Iqbal J, Hussain M, Podolsky MJ, Atabai K. Mfge8 regulates enterocyte lipid storage by promoting enterocyte triglyceride hydrolase activity. JCI Insight 2016; 1:e87418. [PMID: 27812539 DOI: 10.1172/jci.insight.87418] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The small intestine has an underappreciated role as a lipid storage organ. Under conditions of high dietary fat intake, enterocytes can minimize the extent of postprandial lipemia by storing newly absorbed dietary fat in cytoplasmic lipid droplets. Lipid droplets can be subsequently mobilized for the production of chylomicrons. The mechanisms that regulate this process are poorly understood. We report here that the milk protein Mfge8 regulates hydrolysis of cytoplasmic lipid droplets in enterocytes after interacting with the αvβ3 and αvβ5 integrins. Mice deficient in Mfge8 or the αvβ3 and αvβ5 integrins accumulate excess cytoplasmic lipid droplets after a fat challenge. Mechanistically, interruption of the Mfge8-integrin axis leads to impaired enterocyte intracellular triglyceride hydrolase activity in vitro and in vivo. Furthermore, Mfge8 increases triglyceride hydrolase activity through a PI3 kinase/mTORC2-dependent signaling pathway. These data identify a key role for Mfge8 and the αvβ3 and αvβ5 integrins in regulating enterocyte lipid processing.
Collapse
Affiliation(s)
- Amin Khalifeh-Soltani
- Department of Medicine.,Cardiovascular Research Institute.,Lung Biology Center, University of California, San Francisco, San Francisco, California, USA
| | - Deepti Gupta
- Department of Medicine.,Cardiovascular Research Institute.,Lung Biology Center, University of California, San Francisco, San Francisco, California, USA
| | - Arnold Ha
- Department of Medicine.,Cardiovascular Research Institute
| | - Jahangir Iqbal
- Departments of Cell Biology and Pediatrics, SUNY Downstate Medical Center, Brooklyn, New York, USA
| | - Mahmood Hussain
- Departments of Cell Biology and Pediatrics, SUNY Downstate Medical Center, Brooklyn, New York, USA
| | - Michael J Podolsky
- Department of Medicine.,Cardiovascular Research Institute.,Lung Biology Center, University of California, San Francisco, San Francisco, California, USA
| | - Kamran Atabai
- Department of Medicine.,Cardiovascular Research Institute.,Lung Biology Center, University of California, San Francisco, San Francisco, California, USA
| |
Collapse
|
48
|
Meliopoulos VA, Van de Velde LA, Van de Velde NC, Karlsson EA, Neale G, Vogel P, Guy C, Sharma S, Duan S, Surman SL, Jones BG, Johnson MDL, Bosio C, Jolly L, Jenkins RG, Hurwitz JL, Rosch JW, Sheppard D, Thomas PG, Murray PJ, Schultz-Cherry S. An Epithelial Integrin Regulates the Amplitude of Protective Lung Interferon Responses against Multiple Respiratory Pathogens. PLoS Pathog 2016; 12:e1005804. [PMID: 27505057 PMCID: PMC4978498 DOI: 10.1371/journal.ppat.1005804] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 07/11/2016] [Indexed: 01/11/2023] Open
Abstract
The healthy lung maintains a steady state of immune readiness to rapidly respond to injury from invaders. Integrins are important for setting the parameters of this resting state, particularly the epithelial-restricted αVβ6 integrin, which is upregulated during injury. Once expressed, αVβ6 moderates acute lung injury (ALI) through as yet undefined molecular mechanisms. We show that the upregulation of β6 during influenza infection is involved in disease pathogenesis. β6-deficient mice (β6 KO) have increased survival during influenza infection likely due to the limited viral spread into the alveolar spaces leading to reduced ALI. Although the β6 KO have morphologically normal lungs, they harbor constitutively activated lung CD11b+ alveolar macrophages (AM) and elevated type I IFN signaling activity, which we traced to the loss of β6-activated transforming growth factor-β (TGF-β). Administration of exogenous TGF-β to β6 KO mice leads to reduced numbers of CD11b+ AMs, decreased type I IFN signaling activity and loss of the protective phenotype during influenza infection. Protection extended to other respiratory pathogens such as Sendai virus and bacterial pneumonia. Our studies demonstrate that the loss of one epithelial protein, αVβ6 integrin, can alter the lung microenvironment during both homeostasis and respiratory infection leading to reduced lung injury and improved survival.
Collapse
Affiliation(s)
- Victoria A. Meliopoulos
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Lee-Ann Van de Velde
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
- Department of Immunology, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Nicholas C. Van de Velde
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
- Department of Immunology, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Erik A. Karlsson
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Geoff Neale
- The Hartwell Center, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Peter Vogel
- Department of Veterinary Pathology Core, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Cliff Guy
- Department of Immunology, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Shalini Sharma
- Department of Immunology, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Susu Duan
- Department of Immunology, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Sherri L. Surman
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Bart G. Jones
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Michael D. L. Johnson
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Catharine Bosio
- Rocky Mountain Laboratories, NIAID, NIH, Hamilton, Montana, United States of America
| | - Lisa Jolly
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - R. Gisli Jenkins
- Division of Respiratory Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Julia L. Hurwitz
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Jason W. Rosch
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Dean Sheppard
- Department of Medicine, Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, UCSF Medical Center, San Francisco, California, United States of America
| | - Paul G. Thomas
- Department of Immunology, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Peter J. Murray
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
- Department of Immunology, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Stacey Schultz-Cherry
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| |
Collapse
|
49
|
Teoh CM, Tan SSL, Tran T. Integrins as Therapeutic Targets for Respiratory Diseases. Curr Mol Med 2016; 15:714-34. [PMID: 26391549 PMCID: PMC5427774 DOI: 10.2174/1566524015666150921105339] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 09/09/2015] [Accepted: 09/19/2015] [Indexed: 01/14/2023]
Abstract
Integrins are a large family of transmembrane heterodimeric proteins that constitute the main receptors for extracellular matrix components. Integrins were initially thought to be primarily involved in the maintenance of cell adhesion and tissue integrity. However, it is now appreciated that integrins play important roles in many other biological processes such as cell survival, proliferation, differentiation, migration, cell shape and polarity. Lung cells express numerous combinations and permutations of integrin heterodimers. The complexity and diversity of different integrin heterodimers being implicated in different lung diseases present a major challenge for drug development. Here we provide a comprehensive overview of the current knowledge of integrins from studies in cell culture to integrin knockout mouse models and provide an update of results from clinical trials for which integrins are therapeutic targets with a focus on respiratory diseases (asthma, emphysema, pneumonia, lung cancer, pulmonary fibrosis and sarcoidosis).
Collapse
Affiliation(s)
| | | | - T Tran
- Department of Physiology, MD9, 2 Medical Drive, National University of Singapore, Singapore 117597, Singapore.
| |
Collapse
|
50
|
WISP1-αvβ3 integrin signaling positively regulates TLR-triggered inflammation response in sepsis induced lung injury. Sci Rep 2016; 6:28841. [PMID: 27349568 PMCID: PMC4923866 DOI: 10.1038/srep28841] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 06/08/2016] [Indexed: 01/11/2023] Open
Abstract
We recently noted that the matricellular protein WISP1 contributes to sepsis induced acute lung injury (ALI) via integrin β6. In the current study, we pursued further aspects of WISP1 modulation of TLR signaling in lungs of mice after sepsis and TLR4 mediated release of TNF-α in macrophages. After confirming that TLR4 and CD14 are critical in transducing sepsis mediated ALI, we now demonstrate that intrapulmonary αvβ3 is increased by polymicrobrial sepsis in a TLR4, CD14 dependent fashion. Comparison of cultured macrophages revealed that WISP1 increased release of TNF-α from RAW264.7 cells with baseline expression of αvβ3, but primary cultures of peritoneal macrophages (PMø) required activation of TLR4 to induce de novo synthesis of αvβ3 enabling WISP1 to stimulate release of TNF-α. The specific requirement for β3 integrin was apparent when the effect of WISP1 was lost in PMø isolated from β3(-/-) mice. WISP1 enhanced TLR4 mediated ERK signaling and U0126 (an ERK inhibitor) blocked LPS induced β3 integrin expression and WISP1 enhanced TNF-α release. Collectively these data suggest that WISP1-αvβ3 integrin signaling is involved in TLR4 pathways in macrophages and may be an important contributor to TLR4/CD14 mediated inflammation in sepsis induced lung injury.
Collapse
|