1
|
Mukhopadhyay A, Tsukasaki Y, Chan WC, Le JP, Kwok ML, Zhou J, Natarajan V, Mostafazadeh N, Maienschein-Cline M, Papautsky I, Tiruppathi C, Peng Z, Rehman J, Ganesh B, Komarova Y, Malik AB. trans-Endothelial neutrophil migration activates bactericidal function via Piezo1 mechanosensing. Immunity 2024; 57:52-67.e10. [PMID: 38091995 PMCID: PMC10872880 DOI: 10.1016/j.immuni.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 08/02/2023] [Accepted: 11/10/2023] [Indexed: 12/21/2023]
Abstract
The regulation of polymorphonuclear leukocyte (PMN) function by mechanical forces encountered during their migration across restrictive endothelial cell junctions is not well understood. Using genetic, imaging, microfluidic, and in vivo approaches, we demonstrated that the mechanosensor Piezo1 in PMN plasmalemma induced spike-like Ca2+ signals during trans-endothelial migration. Mechanosensing increased the bactericidal function of PMN entering tissue. Mice in which Piezo1 in PMNs was genetically deleted were defective in clearing bacteria, and their lungs were predisposed to severe infection. Adoptive transfer of Piezo1-activated PMNs into the lungs of Pseudomonas aeruginosa-infected mice or exposing PMNs to defined mechanical forces in microfluidic systems improved bacterial clearance phenotype of PMNs. Piezo1 transduced the mechanical signals activated during transmigration to upregulate nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 4, crucial for the increased PMN bactericidal activity. Thus, Piezo1 mechanosensing of increased PMN tension, while traversing the narrow endothelial adherens junctions, is a central mechanism activating the host-defense function of transmigrating PMNs.
Collapse
Affiliation(s)
- Amitabha Mukhopadhyay
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Yoshikazu Tsukasaki
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Wan Ching Chan
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Jonathan P Le
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Man Long Kwok
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Jian Zhou
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Viswanathan Natarajan
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA; Department of Medicine, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Nima Mostafazadeh
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Mark Maienschein-Cline
- Research Informatics Core, Research Resources Center, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Ian Papautsky
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Chinnaswamy Tiruppathi
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Zhangli Peng
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois, Chicago, IL 60612, USA
| | - Jalees Rehman
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Balaji Ganesh
- Flow Cytometry Core, Research Resources Center, University of Illinois College of Medicine, Chicago, IL 60612, USA
| | - Yulia Komarova
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA.
| | - Asrar B Malik
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612, USA.
| |
Collapse
|
2
|
Tiruppathi C, Wang DM, Ansari MO, Bano S, Tsukasaki Y, Mukhopadhyay A, Joshi JC, Loch C, Niessen HWM, Malik AB. Ubiquitin ligase CHFR mediated degradation of VE-cadherin through ubiquitylation disrupts endothelial adherens junctions. Nat Commun 2023; 14:6582. [PMID: 37852964 PMCID: PMC10584835 DOI: 10.1038/s41467-023-42225-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 10/04/2023] [Indexed: 10/20/2023] Open
Abstract
Vascular endothelial cadherin (VE-cadherin) expressed at endothelial adherens junctions (AJs) is vital for vascular integrity and endothelial homeostasis. Here we identify the requirement of the ubiquitin E3-ligase CHFR as a key mechanism of ubiquitylation-dependent degradation of VE-cadherin. CHFR was essential for disrupting the endothelium through control of the VE-cadherin protein expression at AJs. We observe augmented expression of VE-cadherin in endothelial cell (EC)-restricted Chfr knockout (ChfrΔEC) mice. We also observe abrogation of LPS-induced degradation of VE-cadherin in ChfrΔEC mice, suggesting the pathophysiological relevance of CHFR in regulating the endothelial junctional barrier in inflammation. Lung endothelial barrier breakdown, inflammatory neutrophil extravasation, and mortality induced by LPS were all suppressed in ChfrΔEC mice. We find that the transcription factor FoxO1 is a key upstream regulator of CHFR expression. These findings demonstrate the requisite role of the endothelial cell-expressed E3-ligase CHFR in regulating the expression of VE-cadherin, and thereby endothelial junctional barrier integrity.
Collapse
Affiliation(s)
- Chinnaswamy Tiruppathi
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA.
| | - Dong-Mei Wang
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Mohammad Owais Ansari
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Shabana Bano
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Yoshikazu Tsukasaki
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Amitabha Mukhopadhyay
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | - Jagdish C Joshi
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA
| | | | - Hans W M Niessen
- Department of Pathology, VU University Medical Center, Amsterdam, the Netherlands
| | - Asrar B Malik
- Department of Pharmacology and Regenerative Medicine and The Center of Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL, USA.
| |
Collapse
|
3
|
Xiong S, Hong Z, Huang LS, Tsukasaki Y, Nepal S, Di A, Zhong M, Wu W, Ye Z, Gao X, Rao GN, Mehta D, Rehman J, Malik AB. IL-1β suppression of VE-cadherin transcription underlies sepsis-induced inflammatory lung injury. J Clin Invest 2023; 133:169500. [PMID: 36856118 PMCID: PMC9974088 DOI: 10.1172/jci169500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
|
4
|
Bachmaier K, Stuart A, Singh A, Mukhopadhyay A, Chakraborty S, Hong Z, Wang L, Tsukasaki Y, Maienschein-Cline M, Ganesh BB, Kanteti P, Rehman J, Malik AB. Albumin Nanoparticle Endocytosing Subset of Neutrophils for Precision Therapeutic Targeting of Inflammatory Tissue Injury. ACS Nano 2022; 16:4084-4101. [PMID: 35230826 PMCID: PMC8945372 DOI: 10.1021/acsnano.1c09762] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 02/23/2022] [Indexed: 05/30/2023]
Abstract
The complex involvement of neutrophils in inflammatory diseases makes them intriguing but challenging targets for therapeutic intervention. Here, we tested the hypothesis that varying endocytosis capacities would delineate functionally distinct neutrophil subpopulations that could be specifically targeted for therapeutic purposes. By using uniformly sized (∼120 nm in diameter) albumin nanoparticles (ANP) to characterize mouse neutrophils in vivo, we found two subsets of neutrophils, one that readily endocytosed ANP (ANPhigh neutrophils) and another that failed to endocytose ANP (ANPlow population). These ANPhigh and ANPlow subsets existed side by side simultaneously in bone marrow, peripheral blood, spleen, and lungs, both under basal conditions and after inflammatory challenge. Human peripheral blood neutrophils showed a similar duality. ANPhigh and ANPlow neutrophils had distinct cell surface marker expression and transcriptomic profiles, both in naive mice and in mice after endotoxemic challenge. ANPhigh and ANPlow neutrophils were functionally distinct in their capacities to kill bacteria and to produce inflammatory mediators. ANPhigh neutrophils produced inordinate amounts of reactive oxygen species and inflammatory chemokines and cytokines. Targeting this subset with ANP loaded with the drug piceatannol, a spleen tyrosine kinase (Syk) inhibitor, mitigated the effects of polymicrobial sepsis by reducing tissue inflammation while fully preserving neutrophilic host-defense function.
Collapse
Affiliation(s)
- Kurt Bachmaier
- Department
of Pharmacology and Regenerative Medicine and the Center for Lung
and Vascular Biology, The University of
Illinois College of Medicine, E403, 835 South Wolcott Avenue, Chicago, Illinois 60612, United States
- Nano
Biotherapeutics, Inc., 2201 West Campbell Park Drive, Chicago, Illinois 60612, United States
| | - Andrew Stuart
- Nano
Biotherapeutics, Inc., 2201 West Campbell Park Drive, Chicago, Illinois 60612, United States
| | - Abhalaxmi Singh
- Department
of Pharmacology and Regenerative Medicine and the Center for Lung
and Vascular Biology, The University of
Illinois College of Medicine, E403, 835 South Wolcott Avenue, Chicago, Illinois 60612, United States
- Nano
Biotherapeutics, Inc., 2201 West Campbell Park Drive, Chicago, Illinois 60612, United States
| | - Amitabha Mukhopadhyay
- Department
of Pharmacology and Regenerative Medicine and the Center for Lung
and Vascular Biology, The University of
Illinois College of Medicine, E403, 835 South Wolcott Avenue, Chicago, Illinois 60612, United States
| | - Sreeparna Chakraborty
- Department
of Pharmacology and Regenerative Medicine and the Center for Lung
and Vascular Biology, The University of
Illinois College of Medicine, E403, 835 South Wolcott Avenue, Chicago, Illinois 60612, United States
| | - Zhigang Hong
- Department
of Pharmacology and Regenerative Medicine and the Center for Lung
and Vascular Biology, The University of
Illinois College of Medicine, E403, 835 South Wolcott Avenue, Chicago, Illinois 60612, United States
| | - Li Wang
- Department
of Pharmacology and Regenerative Medicine and the Center for Lung
and Vascular Biology, The University of
Illinois College of Medicine, E403, 835 South Wolcott Avenue, Chicago, Illinois 60612, United States
- Division
of Cardiology, Department of Medicine, The
University of Illinois College of Medicine, Chicago, Illinois 60612, United States
| | - Yoshikazu Tsukasaki
- Department
of Pharmacology and Regenerative Medicine and the Center for Lung
and Vascular Biology, The University of
Illinois College of Medicine, E403, 835 South Wolcott Avenue, Chicago, Illinois 60612, United States
| | - Mark Maienschein-Cline
- Research
Resources Center, University of Illinois
at Chicago, Chicago, Illinois 60612, United States
| | - Balaji B. Ganesh
- Research
Resources Center, University of Illinois
at Chicago, Chicago, Illinois 60612, United States
| | - Prasad Kanteti
- Nano
Biotherapeutics, Inc., 2201 West Campbell Park Drive, Chicago, Illinois 60612, United States
| | - Jalees Rehman
- Department
of Pharmacology and Regenerative Medicine and the Center for Lung
and Vascular Biology, The University of
Illinois College of Medicine, E403, 835 South Wolcott Avenue, Chicago, Illinois 60612, United States
- Division
of Cardiology, Department of Medicine, The
University of Illinois College of Medicine, Chicago, Illinois 60612, United States
| | - Asrar B. Malik
- Department
of Pharmacology and Regenerative Medicine and the Center for Lung
and Vascular Biology, The University of
Illinois College of Medicine, E403, 835 South Wolcott Avenue, Chicago, Illinois 60612, United States
- Nano
Biotherapeutics, Inc., 2201 West Campbell Park Drive, Chicago, Illinois 60612, United States
| |
Collapse
|
5
|
Tsukasaki Y, Toth PT, Davoodi-Bojd E, Rehman J, Malik AB. Quantitative Pulmonary Neutrophil Dynamics Using Computer-Vision Stabilized Intravital Imaging. Am J Respir Cell Mol Biol 2022; 66:12-22. [PMID: 34555309 PMCID: PMC8803365 DOI: 10.1165/rcmb.2021-0318ma] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/22/2021] [Indexed: 11/24/2022] Open
Abstract
In vivo intravital imaging in animal models in the lung remains challenging owing to respiratory motion artifacts. Here we describe a novel intravital imaging approach based on the computer-vision stabilization algorithm, Computer-Vision Stabilized Intravital Imaging. This method corrects lung movements and deformations at submicron precision in respiring mouse lungs. The precision enables high-throughput quantitative analysis of intravital pulmonary polymorphonuclear neutrophil (PMN) dynamics in lungs. We quantified real-time PMN patrolling dynamics of microvessels in the basal state and PMN recruitment resulting from sequestration in a model of endotoxemia in mice. We focused on determining the marginated pool of PMNs in the lung. Direct visualization of marginated PMNs revealed that they are not static but highly dynamic and undergo repeated cycles of "catch and release." PMNs briefly arrest in larger diameter capillary junction (∼10 μm) and then squeeze into narrower, approximately 5-μm diameter vessels through PMN deformation. We also observed that the sequestered PMNs in lung microvessels lost their migratory capabilities in association with cell morphological change following prolonged endotoxemia. These observations underscore the value of direct visualization and quantitative analysis of PMN dynamics in lungs to study PMN physiology and pathophysiology and role in inflammatory lung injury.
Collapse
Affiliation(s)
- Yoshikazu Tsukasaki
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology
| | - Peter T. Toth
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology
- Research Resources Center Fluorescence Imaging Core, and
| | - Esmaeil Davoodi-Bojd
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology
| | - Jalees Rehman
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology
- Division of Cardiology, Department of Medicine, College of Medicine, the University of Illinois, Chicago, Illinois
| | - Asrar B. Malik
- Department of Pharmacology and Regenerative Medicine and The Center for Lung and Vascular Biology
| |
Collapse
|
6
|
Farahany J, Tsukasaki Y, Mukhopadhyay A, Mittal M, Nepal S, Tiruppathi C, Malik AB. CD38-Mediated Inhibition of Bruton's Tyrosine Kinase in Macrophages Prevents Endotoxemic Lung Injury. Am J Respir Cell Mol Biol 2021; 66:183-195. [PMID: 34706199 DOI: 10.1165/rcmb.2021-0272oc] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
TLR4 signaling via endotoxemia in macrophages promotes macrophage transition to the inflammatory phenotype through NLRP3 inflammasome activation. This transition event has the potential to trigger acute lung injury (ALI). However, relatively little is known about the regulation of NLRP3 and its role in the pathogenesis of ALI. Here we interrogated the signaling pathway activated by CD38, an ectoenzyme expressed in macrophages, in preventing ALI through suppressing NLRP3 activation. Wild type and Cd38 knockout (Cd38─/─) mice were used to assess inflammatory lung injury and isolated macrophages were used to delineate underlying TLR4 signaling pathway. We showed that CD38 suppressed TLR4 signaling in macrophages by inhibiting Bruton's tyrosine kinase (Btk) through the recruitment of protein tyrosine phosphatase SHP2 and resulting in the dephosphorylation of activated Btk. Cd38─/─ mice show enhanced lung PMN extravasation and severe lung injury. LPS- or polymicrobial sepsis-induced mortality in Cd38─/─ mice were markedly augmented compared with WT. CD38 in macrophages functioned by inhibiting Btk activation through activation of SHP2 and resulting dephosphorylation of Btk, and thereby preventing activation of downstream targets NF-ΚB and NLRP3. Cd38─/─ macrophages displayed markedly increased activation of Btk, NF-ΚB, and NLRP3 whereas in vivo administration of the Btk inhibitor ibrutinib (a FDA approved drug) prevented augmented TLR4-induced inflammatory lung injury seen in Cd38─/─ mice. Our findings together show that upregulation of CD38 activity and inhibition of Btk activation downstream of TLR4 activation as potential strategies to prevent endotoxemic ALI.
Collapse
Affiliation(s)
- Joseph Farahany
- University of Illinois At Chicago, Chicago, Illinois, United States
| | | | | | - Manish Mittal
- University of Illinois At Chicago, Chicago, Illinois, United States
| | - Saroj Nepal
- University of Illinois At Chicago, Chicago, Illinois, United States
| | | | - Asrar B Malik
- University of Illinois At Chicago, Chicago, Illinois, United States
| |
Collapse
|
7
|
Xiong S, Hong Z, Huang LS, Tsukasaki Y, Nepal S, Di A, Zhong M, Wu W, Ye Z, Gao X, Rao GN, Mehta D, Rehman J, Malik AB. IL-1β suppression of VE-cadherin transcription underlies sepsis-induced inflammatory lung injury. J Clin Invest 2020; 130:3684-3698. [PMID: 32298238 PMCID: PMC7324198 DOI: 10.1172/jci136908] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/09/2020] [Indexed: 12/18/2022] Open
Abstract
Unchecked inflammation is a hallmark of inflammatory tissue injury in diseases such as acute respiratory distress syndrome (ARDS). Yet the mechanisms of inflammatory lung injury remain largely unknown. Here we showed that bacterial endotoxin lipopolysaccharide (LPS) and cecal ligation and puncture-induced (CLP-induced) polymicrobial sepsis decreased the expression of transcription factor cAMP response element binding (CREB) in lung endothelial cells. We demonstrated that endothelial CREB was crucial for VE-cadherin transcription and the formation of the normal restrictive endothelial adherens junctions. The inflammatory cytokine IL-1β reduced cAMP generation and CREB-mediated transcription of VE-cadherin. Furthermore, endothelial cell-specific deletion of CREB induced lung vascular injury whereas ectopic expression of CREB in the endothelium prevented the injury. We also observed that rolipram, which inhibits type 4 cyclic nucleotide phosphodiesterase-mediated (PDE4-mediated) hydrolysis of cAMP, prevented endotoxemia-induced lung vascular injury since it preserved CREB-mediated VE-cadherin expression. These data demonstrate the fundamental role of the endothelial cAMP-CREB axis in promoting lung vascular integrity and suppressing inflammatory injury. Therefore, strategies aimed at enhancing endothelial CREB-mediated VE-cadherin transcription are potentially useful in preventing sepsis-induced lung vascular injury in ARDS.
Collapse
Affiliation(s)
- Shiqin Xiong
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Zhigang Hong
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Long Shuang Huang
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Yoshikazu Tsukasaki
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Saroj Nepal
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Anke Di
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Ming Zhong
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Wei Wu
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Zhiming Ye
- Department of Nephrology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiaopei Gao
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Gadiparthi N. Rao
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Dolly Mehta
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Jalees Rehman
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| | - Asrar B. Malik
- Department of Pharmacology and Regenerative Medicine and
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, USA
| |
Collapse
|
8
|
Tucker T, Tsukasaki Y, Sakai T, Mitsuhashi S, Komatsu S, Jeffers A, Idell S, Ikebe M. Myocardin Is Involved in Mesothelial-Mesenchymal Transition of Human Pleural Mesothelial Cells. Am J Respir Cell Mol Biol 2020; 61:86-96. [PMID: 30605348 DOI: 10.1165/rcmb.2018-0121oc] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Pleural fibrosis is characterized by severe inflammation of the pleural space and pleural reorganization. Subsequent thickening of the visceral pleura contributes to lung stiffness and impaired lung function. Pleural mesothelial cells (PMCs) can become myofibroblasts via mesothelial-mesenchymal transition (MesoMT) and contribute to pleural organization, fibrosis, and rind formation. However, the mechanisms that underlie MesoMT remain unclear. Here, we investigated the role of myocardin in the induction of MesoMT. Transforming growth factor β (TGF-β) and thrombin induced MesoMT and markedly upregulated the expression of myocardin, but not myocardin-related transcription factor A (MRTF-A) or MRTF-B, in human PMCs (HPMCs). TGF-β stimulation notably induced the nuclear translocation of myocardin in HPMCs, whereas nuclear translocation of MRTF-A and MRTF-B was not observed. Several genes under the control of myocardin were upregulated in cells undergoing MesoMT, an effect that was accompanied by a dramatic cytoskeletal reorganization of HPMCs consistent with a migratory phenotype. Myocardin gene silencing blocked TGF-β- and thrombin-induced MesoMT. Although myocardin upregulation was blocked, MRTF-A and MRTF-B were unchanged. Myocardin, α-SMA, calponin, and smooth muscle myosin were notably upregulated in the thickened pleura of carbon black/bleomycin and empyema mouse models of fibrosing pleural injury. Similar results were observed in human nonspecific pleuritis. In a TGF-β mouse model of pleural fibrosis, PMC-specific knockout of myocardin protected against decrements in lung function. Further, TGF-β-induced pleural thickening was abolished by PMC-specific myocardin knockout, which was accompanied by a marked reduction of myocardin, calponin, and α-SMA expression compared with floxed-myocardin controls. These novel results show that myocardin participates in the development of MesoMT in HPMCs and contributes to the pathogenesis of pleural organization and fibrosis.
Collapse
Affiliation(s)
- Torry Tucker
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Yoshikazu Tsukasaki
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Tsuyoshi Sakai
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Shinya Mitsuhashi
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Satoshi Komatsu
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Ann Jeffers
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Steven Idell
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Mitsuo Ikebe
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas
| |
Collapse
|
9
|
Zhao R, Ali G, Chang J, Komatsu S, Tsukasaki Y, Nie HG, Chang Y, Zhang M, Liu Y, Jain K, Jung BG, Samten B, Jiang D, Liang J, Ikebe M, Matthay MA, Ji HL. Proliferative regulation of alveolar epithelial type 2 progenitor cells by human Scnn1d gene. Am J Cancer Res 2019; 9:8155-8170. [PMID: 31754387 PMCID: PMC6857051 DOI: 10.7150/thno.37023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 09/16/2019] [Indexed: 01/03/2023] Open
Abstract
Lung epithelial sodium channel (ENaC) encoded by Scnn1 genes is essential for maintaining transepithelial salt and fluid homeostasis in the airway and the lung. Compared to α, β, and γ subunits, the role of respiratory δ-ENaC has not been studied in vivo due to the lack of animal models. Methods: We characterized full-length human δ802-ENaC expressed in both Xenopus oocytes and humanized transgenic mice. AT2 proliferation and differentiation in 3D organoids were analysed with FACS and a confocal microscope. Both two-electrode voltage clamp and Ussing chamber systems were applied to digitize δ802-ENaC channel activity. Immunoblotting was utilized to analyse δ802-ENaC protein. Transcripts of individual ENaC subunits in human lung tissues were quantitated with qPCR. Results: The results indicate that δ802-ENaC functions as an amiloride-inhibitable Na+ channel. Inhibitory peptide α-13 distinguishes δ802- from α-type ENaC channels. Modified proteolysis of γ-ENaC by plasmin and aprotinin did not alter the inhibition of amiloride and α-13 peptide. Expression of δ802-ENaC at the apical membrane of respiratory epithelium was detected with biophysical features similar to those of heterologously expressed channels in oocytes. δ802-ENaC regulated alveologenesis through facilitating the proliferation of alveolar type 2 epithelial cells. Conclusion: The humanized mouse line conditionally expressing human δ802-ENaC is a novel model for studying the expression and function of this protein in vivo .
Collapse
|
10
|
Nepal S, Tiruppathi C, Tsukasaki Y, Farahany J, Mittal M, Rehman J, Prockop DJ, Malik AB. STAT6 induces expression of Gas6 in macrophages to clear apoptotic neutrophils and resolve inflammation. Proc Natl Acad Sci U S A 2019; 116:16513-16518. [PMID: 31363052 PMCID: PMC6697797 DOI: 10.1073/pnas.1821601116] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Efferocytosis of apoptotic neutrophils (PMNs) by alveolar macrophages (AMФs) is vital for resolution of inflammation and tissue injury. Here, we investigated the role of AMФ polarization and expression of the efferocytic ligand Gas6 in restoring homeostasis. In the murine model of lipopolysaccharide (LPS)-induced acute lung injury (ALI), we observed augmented temporal generation of cytokines IL-4 and TSG6 in bronchoalveolar fluid (BALF). Interestingly, we also observed increased expression of antiinflammatory markers consistent with a phenotype shift in AMФs. In particular, AMФs expressed the efferocytic ligand Gas6. In vitro priming of bone marrow-derived macrophages (BMMФs) with IL-4 or TSG6 also induced MФ transition and expression of Gas6. TSG6- or IL-4-primed BMMФs induced efferocytosis of apoptotic PMNs compared with control BMMФs. Adoptive transfer of TSG6- or IL-4-primed BMMФs i.t. into LPS-challenged mice more rapidly and effectively cleared PMNs in lungs compared with control BMMФs. We demonstrated that expression of Gas6 during AMФ transition was due to activation of the transcription factor signal transducer and activator of transcription-6 (STAT6) downstream of IL-4 or TSG6 signaling. Adoptive transfer of Gas6-depleted BMMФs failed to clear PMNs in lungs following LPS challenge and mice showed severely defective resolution of lung injury. Thus, activation of STAT6-mediated Gas6 expression during macrophage phenotype transition resulting in efferocytosis of PMNs plays a crucial role in the resolution of inflammatory lung injury.
Collapse
Affiliation(s)
- Saroj Nepal
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, IL 60612
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612
| | - Chinnaswamy Tiruppathi
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, IL 60612
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612
| | - Yoshikazu Tsukasaki
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, IL 60612
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612
| | - Joseph Farahany
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, IL 60612
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612
| | - Manish Mittal
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, IL 60612
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612
| | - Jalees Rehman
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, IL 60612
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612
| | - Darwin J Prockop
- Institute for Regenerative Medicine, College of Medicine, Health Science Center, Texas A & M University, Bryan, TX 77807
| | - Asrar B Malik
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, IL 60612;
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, IL 60612
| |
Collapse
|
11
|
Mittal M, Nepal S, Tsukasaki Y, Hecquet CM, Soni D, Tiruppathi C, Malik AB, Rehman J. Response by Mittal et al to Letter Regarding Article, "Neutrophil Activation of Endothelial Cell-Expressed TRPM2 Mediates Transendothelial Neutrophil Migration and Vascular Injury". Circ Res 2017; 121:e87. [PMID: 29217714 DOI: 10.1161/circresaha.117.312146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Manish Mittal
- Department of Pharmacology, The Center for Lung and Vascular Biology, The University of Illinois College of Medicine, Chicago, IL
| | - Saroj Nepal
- Department of Pharmacology, The Center for Lung and Vascular Biology, The University of Illinois College of Medicine, Chicago, IL
| | - Yoshikazu Tsukasaki
- Department of Pharmacology, The Center for Lung and Vascular Biology, The University of Illinois College of Medicine, Chicago, IL
| | - Claudie M Hecquet
- Department of Pharmacology, The Center for Lung and Vascular Biology, The University of Illinois College of Medicine, Chicago, IL
| | - Dheeraj Soni
- Department of Pharmacology, The Center for Lung and Vascular Biology, The University of Illinois College of Medicine, Chicago, IL
| | - Chinnaswamy Tiruppathi
- Department of Pharmacology, The Center for Lung and Vascular Biology, The University of Illinois College of Medicine, Chicago, IL
| | - Asrar B Malik
- Department of Pharmacology, The Center for Lung and Vascular Biology, The University of Illinois College of Medicine, Chicago, IL
| | - Jalees Rehman
- Department of Pharmacology, The Center for Lung and Vascular Biology, The University of Illinois College of Medicine, Chicago, IL, Department of Medicine, The University of Illinois College of Medicine, Chicago, IL
| |
Collapse
|
12
|
He K, Sakai T, Tsukasaki Y, Watanabe TM, Ikebe M. Myosin X is recruited to nascent focal adhesions at the leading edge and induces multi-cycle filopodial elongation. Sci Rep 2017; 7:13685. [PMID: 29057977 PMCID: PMC5651867 DOI: 10.1038/s41598-017-06147-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 05/16/2017] [Indexed: 12/16/2022] Open
Abstract
Filopodia protrude from the leading edge of cells and play important roles in cell motility. Here we report the mechanism of myosin X (encoded by Myo10)-induced multi-cycle filopodia extension. We found that actin, Arp2/3, vinculin and integrin-β first accumulated at the cell's leading edge. Myosin X was then gathered at these sites, gradually clustered by lateral movement, and subsequently initiated filopodia formation. During filopodia extension, we found the translocation of Arp2/3 and integrin-β along filopodia. Arp2/3 and integrin-β then became localized at the tip of filopodia, from where myosin X initiated the second extension of filopodia with a change in extension direction, thus producing long filopodia. Elimination of integrin-β, Arp2/3 and vinculin by siRNA significantly attenuated the myosin-X-induced long filopodia formation. We propose the following mechanism. Myosin X accumulates at nascent focal adhesions at the cell's leading edge, where myosin X promotes actin convergence to create the base of filopodia. Then myosin X moves to the filopodia tip and attracts integrin-β and Arp2/3 for further actin nucleation. The tip-located myosin X then initiates the second cycle of filopodia elongation to produce the long filopodia.
Collapse
Affiliation(s)
- Kangmin He
- Institute of Vascular Medicine, Peking University Third Hospital and Academy for Advanced Interdisciplinary Studies, Peking University, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China.,Graduate School of Frontier Biosciences, Osaka University, Osaka, 5650871, Japan.,Department of Cell Biology, Harvard Medical School, and Cellular and Molecular Medicine Program, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Tsuyoshi Sakai
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, TX75708, USA
| | - Yoshikazu Tsukasaki
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, TX75708, USA.,Laboratory for Comprehensive Bioimaging, RIKEN Quantitative Biology Center (QBiC), Osaka, 5650874, Japan.,Department of Pharmacology, University of Illinois Chicago College of Medicine, Boston Children's Hospital, Chicago, Illinois 60612, USA
| | - Tomonobu M Watanabe
- Graduate School of Frontier Biosciences, Osaka University, Osaka, 5650871, Japan. .,Laboratory for Comprehensive Bioimaging, RIKEN Quantitative Biology Center (QBiC), Osaka, 5650874, Japan. .,World Premier International Research Center Initiative, iFReC, Osaka University, Osaka, 5650871, Japan.
| | - Mitsuo Ikebe
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, TX75708, USA.
| |
Collapse
|
13
|
Mittal M, Nepal S, Tsukasaki Y, Hecquet CM, Soni D, Rehman J, Tiruppathi C, Malik AB. Neutrophil Activation of Endothelial Cell-Expressed TRPM2 Mediates Transendothelial Neutrophil Migration and Vascular Injury. Circ Res 2017; 121:1081-1091. [PMID: 28790198 DOI: 10.1161/circresaha.117.311747] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 08/04/2017] [Accepted: 08/08/2017] [Indexed: 12/20/2022]
Abstract
RATIONALE TRPM2 (transient receptor potential melastatin-2) expressed in endothelial cells (ECs) is a cation channel mediating Ca2+ entry in response to intracellular generation of adenosine diphosphoribose-the TRPM2 ligand. OBJECTIVE Because polymorphonuclear neutrophils (PMN) interaction with ECs generates reactive oxygen species, we addressed the possible role of TRPM2 expressed in ECs in the mechanism of transendothelial migration of PMNs. METHODS AND RESULTS We observed defective PMN transmigration in response to lipopolysaccharide challenge in adult mice in which the EC expressed TRPM2 is conditionally deleted (Trpm2iΔEC ). PMN interaction with ECs induced the entry of Ca2+ in ECs via the EC-expressed TRPM2. Prevention of generation of adenosine diphosphoribose in ECs significantly reduced Ca2+ entry in response to PMN activation of TRPM2 in ECs. PMNs isolated from gp91phox-/- mice significantly reduced Ca2+ entry in ECs via TRPM2 as compared with wild-type PMNs and failed to induce PMN transmigration. Overexpression of the adenosine diphosphoribose insensitive TRPM2 mutant channel (C1008→A) in ECs suppressed the Ca2+ entry response. Further, the forced expression of TRPM2 mutant channel (C1008→A) or silencing of poly ADP-ribose polymerase in ECs of mice prevented PMN transmigration. CONCLUSIONS Thus, endotoxin-induced transmigration of PMNs was secondary to TRPM2-activated Ca2+ signaling and VE-cadherin phosphorylation resulting in the disassembly of adherens junctions and opening of the paracellular pathways. These results suggest blocking TRPM2 activation in ECs is a potentially important means of therapeutically modifying PMN-mediated vascular inflammation.
Collapse
Affiliation(s)
- Manish Mittal
- From the Department of Pharmacology (M.M., S.N., Y.T., C.M.H., D.S., J.L., C.T., A.B.M.), and Department of Medicine, University of Illinois College of Medicine (J.L.)
| | - Saroj Nepal
- From the Department of Pharmacology (M.M., S.N., Y.T., C.M.H., D.S., J.L., C.T., A.B.M.), and Department of Medicine, University of Illinois College of Medicine (J.L.)
| | - Yoshikazu Tsukasaki
- From the Department of Pharmacology (M.M., S.N., Y.T., C.M.H., D.S., J.L., C.T., A.B.M.), and Department of Medicine, University of Illinois College of Medicine (J.L.)
| | - Claudie M Hecquet
- From the Department of Pharmacology (M.M., S.N., Y.T., C.M.H., D.S., J.L., C.T., A.B.M.), and Department of Medicine, University of Illinois College of Medicine (J.L.)
| | - Dheeraj Soni
- From the Department of Pharmacology (M.M., S.N., Y.T., C.M.H., D.S., J.L., C.T., A.B.M.), and Department of Medicine, University of Illinois College of Medicine (J.L.)
| | - Jalees Rehman
- From the Department of Pharmacology (M.M., S.N., Y.T., C.M.H., D.S., J.L., C.T., A.B.M.), and Department of Medicine, University of Illinois College of Medicine (J.L.)
| | - Chinnaswamy Tiruppathi
- From the Department of Pharmacology (M.M., S.N., Y.T., C.M.H., D.S., J.L., C.T., A.B.M.), and Department of Medicine, University of Illinois College of Medicine (J.L.)
| | - Asrar B Malik
- From the Department of Pharmacology (M.M., S.N., Y.T., C.M.H., D.S., J.L., C.T., A.B.M.), and Department of Medicine, University of Illinois College of Medicine (J.L.).
| |
Collapse
|
14
|
Kamata H, Tsukasaki Y, Sakai T, Ikebe R, Wang J, Jeffers A, Boren J, Owens S, Suzuki T, Higashihara M, Idell S, Tucker TA, Ikebe M. KIF5A transports collagen vesicles of myofibroblasts during pleural fibrosis. Sci Rep 2017; 7:4556. [PMID: 28676645 PMCID: PMC5496869 DOI: 10.1038/s41598-017-04437-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 05/16/2017] [Indexed: 01/28/2023] Open
Abstract
Fibrosis involves the production of extracellular matrix proteins in tissues and is often preceded by injury or trauma. In pleural fibrosis excess collagen deposition results in pleural thickening, increased stiffness and impaired lung function. Myofibroblasts are responsible for increased collagen deposition, however the molecular mechanism of transportation of procollagen containing vesicles for secretion is unknown. Here, we studied the role of kinesin on collagen-1 (Col-1) containing vesicle transportation in human pleural mesothelial cells (HPMCs). Among a number of cargo transporting kinesins, KIF5A was notably upregulated during TGF-β induced mesothelial-mesenchymal transition (MesoMT). Using superresolution structured illumination microscopy and the DUO-Link technique, we found that KIF5A colocalized with Col-1 containing vesicles. KIF5A knock-down significantly reduced Col-1 secretion and attenuated TGF-β induced increment in Col-1 localization at cell peripheries. Live cell imaging revealed that GFP-KIF5A and mCherry-Col-1 containing vesicles moved together. Kymography showed that these molecules continuously move with a mean velocity of 0.56 μm/sec, suggesting that the movement is directional but not diffusion limited process. Moreover, KIF5A was notably upregulated along with Col-1 and α-smooth muscle actin in pleural thickening in the carbon-black bleomycin mouse model. These results support our hypothesis that KIF5A is responsible for collagen transportation and secretion from HPMCs.
Collapse
Affiliation(s)
- Hirotoshi Kamata
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA.,Department of Hematology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0374, Japan
| | - Yoshikazu Tsukasaki
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA
| | - Tsuyoshi Sakai
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA
| | - Reiko Ikebe
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA
| | - Julia Wang
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA
| | - Ann Jeffers
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA
| | - Jake Boren
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA
| | - Shuzi Owens
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA
| | - Takahiro Suzuki
- Department of Hematology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0374, Japan
| | - Masaaki Higashihara
- Department of Hematology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0374, Japan
| | - Steven Idell
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA
| | - Torry A Tucker
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA
| | - Mitsuo Ikebe
- Department of Cellular and Molecular Biology, University of Texas Health Science Center Northeast, 11937 US Highway 271, Tyler, Texas, 75708-3154, USA.
| |
Collapse
|
15
|
Sato O, Komatsu S, Sakai T, Tsukasaki Y, Tanaka R, Mizutani T, Watanabe TM, Ikebe R, Ikebe M. Human myosin VIIa is a very slow processive motor protein on various cellular actin structures. J Biol Chem 2017; 292:10950-10960. [PMID: 28507101 DOI: 10.1074/jbc.m116.765966] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 05/11/2017] [Indexed: 11/06/2022] Open
Abstract
Human myosin VIIa (MYO7A) is an actin-linked motor protein associated with human Usher syndrome (USH) type 1B, which causes human congenital hearing and visual loss. Although it has been thought that the role of human myosin VIIa is critical for USH1 protein tethering with actin and transportation along actin bundles in inner-ear hair cells, myosin VIIa's motor function remains unclear. Here, we studied the motor function of the tail-truncated human myosin VIIa dimer (HM7AΔTail/LZ) at the single-molecule level. We found that the HM7AΔTail/LZ moves processively on single actin filaments with a step size of 35 nm. Dwell-time distribution analysis indicated an average waiting time of 3.4 s, yielding ∼0.3 s-1 for the mechanical turnover rate; hence, the velocity of HM7AΔTail/LZ was extremely slow, at 11 nm·s-1 We also examined HM7AΔTail/LZ movement on various actin structures in demembranated cells. HM7AΔTail/LZ showed unidirectional movement on actin structures at cell edges, such as lamellipodia and filopodia. However, HM7AΔTail/LZ frequently missed steps on actin tracks and exhibited bidirectional movement at stress fibers, which was not observed with tail-truncated myosin Va. These results suggest that the movement of the human myosin VIIa motor protein is more efficient on lamellipodial and filopodial actin tracks than on stress fibers, which are composed of actin filaments with different polarity, and that the actin structures influence the characteristics of cargo transportation by human myosin VIIa. In conclusion, myosin VIIa movement appears to be suitable for translocating USH1 proteins on stereocilia actin bundles in inner-ear hair cells.
Collapse
Affiliation(s)
- Osamu Sato
- From the Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Satoshi Komatsu
- From the Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Tsuyoshi Sakai
- From the Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Yoshikazu Tsukasaki
- From the Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas 75708.,Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois 60612
| | - Ryosuke Tanaka
- Graduate School of Information Science and Technology, Hokkaido University, Sapporo 060-0814, Japan
| | - Takeomi Mizutani
- Department of Advanced Transdisciplinary Sciences, Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan, and
| | - Tomonobu M Watanabe
- Laboratory for Comprehensive Bioimaging, RIKEN Quantitative Biology Center, Suita, Osaka 565-0874, Japan
| | - Reiko Ikebe
- From the Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Mitsuo Ikebe
- From the Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas 75708,
| |
Collapse
|
16
|
Tucker TA, Jeffers A, Boren J, Quaid B, Owens S, Koenig KB, Tsukasaki Y, Florova G, Komissarov AA, Ikebe M, Idell S. Organizing empyema induced in mice by Streptococcus pneumoniae: effects of plasminogen activator inhibitor-1 deficiency. Clin Transl Med 2016; 5:17. [PMID: 27271877 PMCID: PMC4896893 DOI: 10.1186/s40169-016-0097-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 05/03/2016] [Indexed: 01/28/2023] Open
Abstract
Background Pleural infection affects about 65,000 patients annually in the US and UK. In this and other forms of pleural injury, mesothelial cells (PMCs) undergo a process called mesothelial (Meso) mesenchymal transition (MT), by which PMCs acquire a profibrogenic phenotype with increased expression of α-smooth muscle actin (α-SMA) and matrix proteins. MesoMT thereby contributes to pleural organization with fibrosis and lung restriction. Current murine empyema models are characterized by early mortality, limiting analysis of the pathogenesis of pleural organization and mechanisms that promote MesoMT after infection. Methods A new murine empyema model was generated in C57BL/6 J mice by intrapleural delivery of Streptococcus pneumoniae (D39, 3 × 107–5 × 109 cfu) to enable use of genetically manipulated animals. CT-scanning and pulmonary function tests were used to characterize the physiologic consequences of organizing empyema. Histology, immunohistochemistry, and immunofluorescence were used to assess pleural injury. ELISA, cytokine array and western analyses were used to assess pleural fluid mediators and markers of MesoMT in primary PMCs. Results Induction of empyema was done through intranasal or intrapleural delivery of S. pneumoniae. Intranasal delivery impaired lung compliance (p < 0.05) and reduced lung volume (p < 0.05) by 7 days, but failed to reliably induce empyema and was characterized by unacceptable mortality. Intrapleural delivery of S. pneumoniae induced empyema by 24 h with lung restriction and development of pleural fibrosis which persisted for up to 14 days. Markers of MesoMT were increased in the visceral pleura of S. pneumoniae infected mice. KC, IL-17A, MIP-1β, MCP-1, PGE2 and plasmin activity were increased in pleural lavage of infected mice at 7 days. PAI-1−/− mice died within 4 days, had increased pleural inflammation and higher PGE2 levels than WT mice. PGE2 was induced in primary PMCs by uPA and plasmin and induced markers of MesoMT. Conclusion To our knowledge, this is the first murine model of subacute, organizing empyema. The model can be used to identify factors that, like PAI-1 deficiency, alter outcomes and dissect their contribution to pleural organization, rind formation and lung restriction.
Collapse
Affiliation(s)
- Torry A Tucker
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA.
| | - Ann Jeffers
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA
| | - Jake Boren
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA
| | - Brandon Quaid
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA
| | - Shuzi Owens
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA
| | - Kathleen B Koenig
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA
| | - Yoshikazu Tsukasaki
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA
| | - Galina Florova
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA
| | - Andrey A Komissarov
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA
| | - Mitsuo Ikebe
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA
| | - Steven Idell
- The Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, 11937 US HWY 271, Biomedical Research Building, Lab C-5, Tyler, TX, 75708, USA
| |
Collapse
|
17
|
Ohyanagi T, Shima T, Okada Y, Tsukasaki Y, Komatsuzaki A, Tsuboi S, Jin T. Compact and stable SNAP ligand-conjugated quantum dots as a fluorescent probe for single-molecule imaging of dynein motor protein. Chem Commun (Camb) 2016; 51:14836-9. [PMID: 26267231 DOI: 10.1039/c5cc05526a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Compact SNAP ligand-conjugated quantum dots (<10 nm) with high colloidal stability over a wide range of pH (5-9) have been synthesized as fluorescent probe for the single-molecule imaging of dynein motor protein.
Collapse
Affiliation(s)
- Tatsuya Ohyanagi
- Laboratory for Nano-Bio Probes, Quantitative Biology Center (QBiC), Riken, Furuedai 6-2-3, Suita, Osaka 565-0874, Japan.
| | | | | | | | | | | | | |
Collapse
|
18
|
Qin W, Tsukasaki Y, Dasgupta S, Mukhopadhyay N, Ikebe M, Sauter ER. Exosomes in Human Breast Milk Promote EMT. Clin Cancer Res 2016; 22:4517-24. [PMID: 27060153 DOI: 10.1158/1078-0432.ccr-16-0135] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 03/27/2016] [Indexed: 11/16/2022]
Abstract
PURPOSE Pregnancy increases breast cancer risk for all women for at least 5 years after parturition. During weaning and involution, the breast microenvironment becomes tumor promotional. Exosomes provide cell-cell communication during physiologic processes such as lactation, but also in breast cancer. We determined whether molecules in milk exosomes from healthy lactating women modulate the development and progression of breast cancer. EXPERIMENTAL DESIGN Thirteen nursing women provided three (transitional, mature, and wean) milk samples. Exosomes were extracted and MCF7 and MCF10A breast cells labeled. The expression of six proteins linked to breast cancer was measured. On the basis of the findings, TGFβ2 concentration in exosome samples was measured, breast cells incubated with the exosomes and effect (epithelial-mesenchymal transition, EMT) on EMT-related proteins [E-cadherin, α-smooth muscle actin (α-SMA), filamentous (F)-actin and vimentin] measured. RESULTS Human milk exosomes entered benign and malignant breast cells. The greatest change in wean milk protein was in TGFβ2 (P = 0.01). Exosomes with a high (but not low) level of TGFβ2 led to EMT in both cancer and benign cells, based on (i) change in cell morphology, actin cytoskeleton, and loss of cell-cell junction structure and (ii) increased α-SMA and vimentin and decreased E-cadherin. CONCLUSIONS TGFβ2 is significantly upregulated in breast milk exosomes during weaning/early involution. Breast milk exosomes containing high levels of TGFβ2 induce changes in both benign and malignant breast epithelial cells, consistent with the development and progression of breast cancer, suggesting a role for high TGFβ2-expressing breast milk exosomes in influencing breast cancer risk. Clin Cancer Res; 22(17); 4517-24. ©2016 AACR.
Collapse
Affiliation(s)
- Wenyi Qin
- Department of Cellular & Molecular Biology, University of Texas Health Science Center, Tyler, Texas. Department of Surgery, University of Texas Health Science Center, Tyler, Texas
| | - Yoshikazu Tsukasaki
- Department of Cellular & Molecular Biology, University of Texas Health Science Center, Tyler, Texas
| | - Santanu Dasgupta
- Department of Cellular & Molecular Biology, University of Texas Health Science Center, Tyler, Texas
| | - Nitai Mukhopadhyay
- Department of Biostatistics, Virginia Commonwealth University, Richmond, Virginia
| | - Mitsuo Ikebe
- Department of Cellular & Molecular Biology, University of Texas Health Science Center, Tyler, Texas
| | - Edward R Sauter
- Department of Cellular & Molecular Biology, University of Texas Health Science Center, Tyler, Texas. Department of Surgery, University of Texas Health Science Center, Tyler, Texas.
| |
Collapse
|
19
|
Tiwari N, Marudamuthu AS, Tsukasaki Y, Ikebe M, Fu J, Shetty S. p53- and PAI-1-mediated induction of C-X-C chemokines and CXCR2: importance in pulmonary inflammation due to cigarette smoke exposure. Am J Physiol Lung Cell Mol Physiol 2016; 310:L496-506. [PMID: 26747783 PMCID: PMC4888555 DOI: 10.1152/ajplung.00290.2015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 01/02/2016] [Indexed: 11/22/2022] Open
Abstract
We previously demonstrated that tumor suppressor protein p53 augments plasminogen activator inhibitor-1 (PAI-1) expression in alveolar epithelial cells (AECs) during chronic cigarette smoke (CS) exposure-induced lung injury. Chronic lung inflammation with elevated p53 and PAI-1 expression in AECs and increased susceptibility to and exacerbation of respiratory infections are all associated with chronic obstructive pulmonary disease (COPD). We recently demonstrated that preventing p53 from binding to the endogenous PAI-1 mRNA in AECs by either suppressing p53 expression or blockading p53 interactions with the PAI-1 mRNA mitigates apoptosis and lung injury. Within this context, we now show increased expression of the C-X-C chemokines (CXCL1 and CXCL2) and their receptor CXCR2, and the intercellular cellular adhesion molecule-1 (ICAM-1), in the lung tissues of patients with COPD. We also found a similar increase in lung tissues and AECs from wild-type (WT) mice exposed to passive CS for 20 wk and in primary AECs treated with CS extract in vitro. Interestingly, passive CS exposure of mice lacking either p53 or PAI-1 expression resisted an increase in CXCL1, CXCL2, CXCR2, and ICAM-1. Furthermore, inhibition of p53-mediated induction of PAI-1 expression by treatment of WT mice exposed to passive CS with caveolin-1 scaffolding domain peptide reduced CXCL1, CXCL2, and CXCR2 levels and lung inflammation. Our study reveals that p53-mediated induction of PAI-1 expression due to chronic CS exposure exacerbates lung inflammation through elaboration of CXCL1, CXCL2, and CXCR2. We further provide evidence that targeting this pathway mitigates lung injury associated with chronic CS exposure.
Collapse
Affiliation(s)
- Nivedita Tiwari
- The Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, Texas; and
| | - Amarnath S Marudamuthu
- The Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, Texas; and
| | - Yoshikazu Tsukasaki
- The Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, Texas; and
| | - Mitsuo Ikebe
- The Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, Texas; and
| | - Jian Fu
- Center for Research on Environmental Disease and Toxicology, College of Medicine, University of Kentucky, Lexington, Kentucky
| | - Sreerama Shetty
- The Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, Texas; and
| |
Collapse
|
20
|
Tsukasaki Y, Komatsuzaki A, Mori Y, Ma Q, Yoshioka Y, Jin T. A short-wavelength infrared emitting multimodal probe for non-invasive visualization of phagocyte cell migration in living mice. Chem Commun (Camb) 2015; 50:14356-9. [PMID: 25296382 DOI: 10.1039/c4cc06542e] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the non-invasive visualization of cell migration in deep tissues, we synthesized a short-wavelength infrared (SWIR) emitting multimodal probe that contains PbS/CdS quantum dots, rhodamine 6G and iron oxide nanoparticles. This probe enables multimodal (SWIR fluorescence/magnetic resonance) imaging of phagocyte cell migration in living mice.
Collapse
Affiliation(s)
- Y Tsukasaki
- RIKEN Quantitative Biology Center, 6-2-3 Furuedai, Suita, Osaka 565-0874, Japan.
| | | | | | | | | | | |
Collapse
|
21
|
Owens S, Jeffers A, Boren J, Tsukasaki Y, Koenig K, Ikebe M, Idell S, Tucker TA. Mesomesenchymal transition of pleural mesothelial cells is PI3K and NF-κB dependent. Am J Physiol Lung Cell Mol Physiol 2015; 308:L1265-73. [PMID: 25888576 DOI: 10.1152/ajplung.00396.2014] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 04/13/2015] [Indexed: 11/22/2022] Open
Abstract
Pleural organization follows acute injury and is characterized by pleural fibrosis, which may involve the visceral and parietal pleural surfaces. This process affects patients with complicated parapneumonic pleural effusions, empyema, and other pleural diseases prone to pleural fibrosis and loculation. Pleural mesothelial cells (PMCs) undergo a process called mesothelial mesenchymal transition (MesoMT), by which PMCs acquire a profibrotic phenotype characterized by cellular enlargement and elongation, increased expression of α-smooth muscle actin (α-SMA), and matrix proteins including collagen-1. Although MesoMT contributes to pleural fibrosis and lung restriction in mice with carbon black/bleomycin-induced pleural injury and procoagulants and fibrinolytic proteases strongly induce MesoMT in vitro, the mechanism by which this transition occurs remains unclear. We found that thrombin and plasmin potently induce MesoMT in vitro as does TGF-β. Furthermore, these mediators of MesoMT activate phosphatidylinositol-3-kinase (PI3K)/Akt and NF-κB signaling pathways. Inhibition of PI3K/Akt signaling prevented TGF-β-, thrombin-, and plasmin-mediated induction of the MesoMT phenotype exhibited by primary human PMCs. Similar effects were demonstrated through blockade of the NF-κB signaling cascade using two distinctly different NF-κB inhibitors, SN50 and Bay-11 7085. Conversely, expression of constitutively active Akt-induced mesenchymal transition in human PMCs whereas the process was blocked by PX866 and AKT8. Furthermore, thrombin-mediated MesoMT is dependent on PAR-1 expression, which is linked to PI3K/Akt signaling downstream. These are the first studies to demonstrate that PI3K/Akt and/or NF-κB signaling is critical for induction of MesoMT.
Collapse
Affiliation(s)
- Shuzi Owens
- Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, Texas; and
| | - Ann Jeffers
- Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, Texas; and
| | - Jake Boren
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Yoshikazu Tsukasaki
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Kathleen Koenig
- Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, Texas; and
| | - Mitsuo Ikebe
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Steven Idell
- Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, Texas; and
| | - Torry A Tucker
- Texas Lung Injury Institute, The University of Texas Health Science Center at Tyler, Tyler, Texas; and
| |
Collapse
|
22
|
Komatsuzaki A, Ohyanagi T, Tsukasaki Y, Miyanaga Y, Ueda M, Jin T. Compact halo-ligand-conjugated quantum dots for multicolored single-molecule imaging of overcrowding GPCR proteins on cell membranes. Small 2015; 11:1396-1401. [PMID: 25504902 DOI: 10.1002/smll.201402508] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 09/19/2014] [Indexed: 06/04/2023]
Abstract
To detect single molecules within the optical diffraction limit (< ca. 200 nm), a multicolored imaging technique is developed using Halo-ligand conjugated quantum dots (Halo-QDs; <6 nm in diameter). Using three types of Halo-QDs, multicolored single-molecule fluorescence imaging of GPCR proteins in Dictyostelium cells is achieved.
Collapse
Affiliation(s)
- Akihito Komatsuzaki
- Laboratory for Nano-Bio Probes, Quantitative Biology Center, Riken, Suita, 565-0874, Osaka, Japan
| | | | | | | | | | | |
Collapse
|
23
|
Sasaki A, Tsukasaki Y, Komatsuzaki A, Sakata T, Yasuda H, Jin T. Recombinant protein (EGFP-Protein G)-coated PbS quantum dots for in vitro and in vivo dual fluorescence (visible and second-NIR) imaging of breast tumors. Nanoscale 2015; 7:5115-9. [PMID: 25564367 DOI: 10.1039/c4nr06480a] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report a one-step synthetic strategy for the preparation of recombinant protein (EGFP-Protein G)-coated PbS quantum dots for dual (visible and second-NIR) fluorescence imaging of breast tumors at the cellular and whole-body level.
Collapse
Affiliation(s)
- Akira Sasaki
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8566, Japan.
| | | | | | | | | | | |
Collapse
|
24
|
Marudamuthu AS, Shetty SK, Bhandary YP, Karandashova S, Thompson M, Sathish V, Florova G, Hogan TB, Pabelick CM, Prakash YS, Tsukasaki Y, Fu J, Ikebe M, Idell S, Shetty S. Plasminogen activator inhibitor-1 suppresses profibrotic responses in fibroblasts from fibrotic lungs. J Biol Chem 2015; 290:9428-41. [PMID: 25648892 DOI: 10.1074/jbc.m114.601815] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 02/04/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a fatal lung disease characterized by progressive interstitial scarification. A hallmark morphological lesion is the accumulation of myofibroblasts or fibrotic lung fibroblasts (FL-fibroblasts) in areas called fibroblastic foci. We previously demonstrated that the expression of both urokinase-type plasminogen activator (uPA) and the uPA receptor are elevated in FL-fibroblasts from the lungs of patients with IPF. FL-fibroblasts isolated from human IPF lungs and from mice with bleomycin-induced pulmonary fibrosis showed an increased rate of proliferation compared with normal lung fibroblasts (NL-fibroblasts) derived from histologically "normal" lung. Basal expression of plasminogen activator inhibitor-1 (PAI-1) in human and murine FL-fibroblasts was reduced, whereas collagen-I and α-smooth muscle actin were markedly elevated. Conversely, alveolar type II epithelial cells surrounding the fibrotic foci in situ, as well as those isolated from IPF lungs, showed increased activation of caspase-3 and PAI-1 with a parallel reduction in uPA expression. Transduction of an adenovirus PAI-1 cDNA construct (Ad-PAI-1) suppressed expression of uPA and collagen-I and attenuated proliferation in FL-fibroblasts. On the contrary, inhibition of basal PAI-1 in NL-fibroblasts increased collagen-I and α-smooth muscle actin. Fibroblasts isolated from PAI-1-deficient mice without lung injury also showed increased collagen-I and uPA. These changes were associated with increased Akt/phosphatase and tensin homolog proliferation/survival signals in FL-fibroblasts, which were reversed by transduction with Ad-PAI-1. This study defines a new role of PAI-1 in the control of fibroblast activation and expansion and its role in the pathogenesis of fibrosing lung disease and, in particular, IPF.
Collapse
Affiliation(s)
- Amarnath S Marudamuthu
- From the Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Shwetha K Shetty
- From the Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Yashodhar P Bhandary
- From the Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Sophia Karandashova
- From the Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Michael Thompson
- the Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota 55905, and
| | | | - Galina Florova
- From the Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Taryn B Hogan
- From the Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | | | - Y S Prakash
- the Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota 55905, and
| | - Yoshikazu Tsukasaki
- From the Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Jian Fu
- the Center for Research on Environmental Disease and Toxicology, College of Medicine, University of Kentucky, Lexington, Kentucky 40536
| | - Mitsuo Ikebe
- From the Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Steven Idell
- From the Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas 75708
| | - Sreerama Shetty
- From the Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas 75708,
| |
Collapse
|
25
|
Tsukasaki Y, Morimatsu M, Nishimura G, Sakata T, Yasuda H, Komatsuzaki A, Watanabe TM, Jin T. Synthesis and optical properties of emission-tunable PbS/CdS core–shell quantum dots for in vivo fluorescence imaging in the second near-infrared window. RSC Adv 2014. [DOI: 10.1039/c4ra06098a] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This paper describes the synthesis and optical properties of PbS/CdS quantum dots for in vivo fluorescence imaging.
Collapse
Affiliation(s)
| | | | - Goro Nishimura
- Research Institute for Electronic Science
- Hokkaido University
- Sapporo 001-0020, Japan
| | - Takao Sakata
- Research Center for Ultra-High Voltage Electron Microscopy
- Osaka University
- Ibaraki, Japan
| | - Hidehiro Yasuda
- Research Center for Ultra-High Voltage Electron Microscopy
- Osaka University
- Ibaraki, Japan
| | | | - Tomonobu M. Watanabe
- RIKEN Quantitative Biology Center
- Suita, Japan
- Graduate School of Frontier Biosciences
- Osaka University
- Suita, Japan
| | - Takashi Jin
- RIKEN Quantitative Biology Center
- Suita, Japan
- Graduate School of Frontier Biosciences
- Osaka University
- Suita, Japan
| |
Collapse
|
26
|
Nakane Y, Tsukasaki Y, Sakata T, Yasuda H, Jin T. Aqueous synthesis of glutathione-coated PbS quantum dots with tunable emission for non-invasive fluorescence imaging in the second near-infrared biological window (1000–1400 nm). Chem Commun (Camb) 2013; 49:7584-6. [DOI: 10.1039/c3cc44000a] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
27
|
Hasegawa M, Tsukasaki Y, Ohyanagi T, Jin T. Bioluminescence resonance energy transfer coupled near-infrared quantum dots using GST-tagged luciferase for in vivo imaging. Chem Commun (Camb) 2013; 49:228-30. [DOI: 10.1039/c2cc36870f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
28
|
Watanabe TM, Tsukasaki Y, Fujita H, Ichimura T, Saitoh T, Akira S, Yanagida T. Distinct modulated pupil function system for real-time imaging of living cells. PLoS One 2012; 7:e44028. [PMID: 22962597 PMCID: PMC3433489 DOI: 10.1371/journal.pone.0044028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2012] [Accepted: 08/01/2012] [Indexed: 12/03/2022] Open
Abstract
Optical microscopy is one of the most contributive tools for cell biology in the past decades. Many microscopic techniques with various functions have been developed to date, i.e., phase contrast microscopy, differential interference contrast (DIC) microscopy, confocal microscopy, two photon microscopy, superresolution microscopy, etc. However, person who is in charge of an experiment has to select one of the several microscopic techniques to achieve an experimental goal, which makes the biological assay time-consuming and expensive. To solve this problem, we have developed a microscopic system with various functions in one instrument based on the optical Fourier transformation with a lens system for detection while focusing on applicability and user-friendliness for biology. The present instrument can arbitrarily modulate the pupil function with a micro mirror array on the Fourier plane of the optical pathway for detection. We named the present instrument DiMPS (Distinct optical Modulated Pupil function System). The DiMPS is compatible with conventional fluorescent probes and illumination equipment, and gives us a Fourier-filtered image, a pseudo-relief image, and a deep focus depth. Furthermore, DiMPS achieved a resolution enhancement (pseudo-superresolution) of 110 nm through the subtraction of two images whose pupil functions are independently modulated. In maximum, the spatial and temporal resolution was improved to 120 nm and 2 ms, respectively. Since the DiMPS is based on relay optics, it can be easily combined with another microscopic instrument such as confocal microscope, and provides a method for multi-color pseudo-superresolution. Thus, the DiMPS shows great promise as a flexible optical microscopy technique in biological research fields.
Collapse
Affiliation(s)
- Tomonobu M. Watanabe
- RIKEN Quantitative Biology Center (QBiC), 6-2-3 Furuedai, Suita, Osaka, Japan
- Graduate School of Frontier Biosciences, Osaka University, 1–3 Yamadaoka, Suita, Osaka, Japan
- World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, 1–3 Yamadaoka, Suita, Osaka, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama, Japan
| | - Yoshikazu Tsukasaki
- RIKEN Quantitative Biology Center (QBiC), 6-2-3 Furuedai, Suita, Osaka, Japan
| | - Hideaki Fujita
- RIKEN Quantitative Biology Center (QBiC), 6-2-3 Furuedai, Suita, Osaka, Japan
- World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, 1–3 Yamadaoka, Suita, Osaka, Japan
| | - Taro Ichimura
- RIKEN Quantitative Biology Center (QBiC), 6-2-3 Furuedai, Suita, Osaka, Japan
| | - Tatsuya Saitoh
- World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, 1–3 Yamadaoka, Suita, Osaka, Japan
- Department of Host Defense, Research Institute for Microbial Diseases, Osaka University, 1–3 Yamadaoka, Suita, Osaka, Japan
| | - Shizuo Akira
- World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, 1–3 Yamadaoka, Suita, Osaka, Japan
- Department of Host Defense, Research Institute for Microbial Diseases, Osaka University, 1–3 Yamadaoka, Suita, Osaka, Japan
| | - Toshio Yanagida
- RIKEN Quantitative Biology Center (QBiC), 6-2-3 Furuedai, Suita, Osaka, Japan
- Graduate School of Frontier Biosciences, Osaka University, 1–3 Yamadaoka, Suita, Osaka, Japan
- World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, 1–3 Yamadaoka, Suita, Osaka, Japan
- * E-mail:
| |
Collapse
|
29
|
Watanabe TM, Higuchi S, Kawauchi K, Tsukasaki Y, Ichimura T, Fujita H. Chromatin plasticity as a differentiation index during muscle differentiation of C2C12 myoblasts. Biochem Biophys Res Commun 2012; 418:742-7. [PMID: 22306010 DOI: 10.1016/j.bbrc.2012.01.091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Accepted: 01/19/2012] [Indexed: 10/14/2022]
Abstract
Skeletal muscle undergoes complicated differentiation steps that include cell-cycle arrest, cell fusion, and maturation, which are controlled through sequential expression of transcription factors. During muscle differentiation, remodeling of the epigenetic landscape is also known to take place on a large scale, determining cell fate. In an attempt to determine the extent of epigenetic remodeling during muscle differentiation, we characterized the plasticity of the chromatin structure using C2C12 myoblasts. Differentiation of C2C12 cells was induced by lowering the serum concentration after they had reached full confluence, resulting in the formation of multi-nucleated myotubes. Upon induction of differentiation, the nucleus size decreased whereas the aspect ratio increased, indicating the presence of force on the nucleus during differentiation. Movement of the nucleus was also suppressed when differentiation was induced, indicating that the plasticity of chromatin changed upon differentiation. To evaluate the histone dynamics during differentiation, FRAP experiment was performed, which showed an increase in the immobile fraction of histone proteins when differentiation was induced. To further evaluate the change in the histone dynamics during differentiation, FCS was performed, which showed a decrease in histone mobility on differentiation. We here show that the plasticity of chromatin decreases upon differentiation, which takes place in a stepwise manner, and that it can be used as an index for the differentiation stage during myogenesis using the state diagram developed with the parameters obtained in this study.
Collapse
Affiliation(s)
- Tomonobu M Watanabe
- Laboratory for Comprehensive Bioimaging, Riken Qbic, Osaka 565-0874, Japan; World Premier Initiative, iFREC, Osaka University, Osaka 565-0871, Japan
| | | | | | | | | | | |
Collapse
|
30
|
Watanabe TM, Tsukasaki Y, Saitoh T, Akira S, Yanagida T. High Speed Resolution Enhancement by Optical Pupil Function Modulating System. Biophys J 2011. [DOI: 10.1016/j.bpj.2010.12.2136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
31
|
Sugawara Y, Matsumura T, Takegahara Y, Jin Y, Tsukasaki Y, Takeichi M, Fujinaga Y. Botulinum hemagglutinin disrupts the intercellular epithelial barrier by directly binding E-cadherin. J Exp Med 2010. [DOI: 10.1084/jem2076oia19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
32
|
Sugawara Y, Matsumura T, Takegahara Y, Jin Y, Tsukasaki Y, Takeichi M, Fujinaga Y. Botulinum hemagglutinin disrupts the intercellular epithelial barrier by directly binding E-cadherin. ACTA ACUST UNITED AC 2010; 189:691-700. [PMID: 20457762 PMCID: PMC2872904 DOI: 10.1083/jcb.200910119] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Botulinum neurotoxin is produced by Clostridium botulinum and forms large protein complexes through associations with nontoxic components. We recently found that hemagglutinin (HA), one of the nontoxic components, disrupts the intercellular epithelial barrier; however, the mechanism underlying this phenomenon is not known. In this study, we identified epithelial cadherin (E-cadherin) as a target molecule for HA. HA directly binds E-cadherin and disrupts E-cadherin-mediated cell to cell adhesion. Although HA binds human, bovine, and mouse E-cadherin, it does not bind rat or chicken E-cadherin homologues. HA does not interact with other members of the classical cadherin family such as neural and vascular endothelial cadherin. Expression of rat E-cadherin but not mouse rescues Madin-Darby canine kidney cells from HA-induced tight junction (TJ) disruptions. These data demonstrate that botulinum HA directly binds E-cadherin and disrupts E-cadherin-mediated cell to cell adhesion in a species-specific manner and that the HA-E-cadherin interaction is essential for the disruption of TJ function.
Collapse
Affiliation(s)
- Yo Sugawara
- Laboratory for Infection Cell Biology, International Research Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | | | | | | | | | | | | |
Collapse
|
33
|
Tsukasaki Y, Kitamura K, Shimizu K, Iwane AH, Takai Y, Yanagida T. Role of multiple bonds between the single cell adhesion molecules, nectin and cadherin, revealed by high sensitive force measurements. J Mol Biol 2006; 367:996-1006. [PMID: 17300801 DOI: 10.1016/j.jmb.2006.12.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2006] [Revised: 12/11/2006] [Accepted: 12/11/2006] [Indexed: 10/23/2022]
Abstract
Nectins and cadherins, members of cell adhesion molecules (CAMs), are the primary mediators for various types of cell-cell junctions. Here, intermolecular force microscopy (IFM) with force sensitivity at sub-picoNewtons is used to characterize the extracellular trans-interactions between paired nectins and paired cadherins at the single molecule level. Three and four different bound states between paired nectins and paired cadherins are, respectively, identified and characterized based on bond strength distributions where each bound state has a unique lifetime and bond length. The results indicate that multiple domains of nectins act uncooperatively, as a zipper-like multiply bonded system whereas those of cadherins act cooperatively, as a parallel-like multiply bonded system, consistent with a "fork initiation and zipper" hypothesis for the formation of cell-cell adhesion. The observed dynamic properties among multiple bonds are expected to be advantageous such that nectins search adaptively in the cell-cell exploratory recognition process while cadherins slowly stabilize in the cell-cell zippering process.
Collapse
Affiliation(s)
- Yoshikazu Tsukasaki
- Department of Nanobiology, Graduate School of Frontier Biosciences, Osaka University, 1-3, Yamadaoka, Suita, Osaka 565-0871, Japan
| | | | | | | | | | | |
Collapse
|