Regulation of thrombin-induced lung endothelial cell barrier disruption by protein kinase C delta

Lishi Xie, Eddie T. Chiang, Xiaomin Wu, Gabriel T. Kelly, Prasad Kanteti, Patrick A. Singleton, Sara M. Camp, Tingting Zhou, Steven M. Dudek, Viswanathan Natarajan, Ting Wang, Stephen Matthew Black, Joe G.N. Garcia, Jeffrey R. Jacobson

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Protein Kinase C (PKC) plays a significant role in thrombin-induced loss of endothelial cell (EC) barrier integrity; however, the existence of more than 10 isozymes of PKC and tissue-specific isoform expression has limited our understanding of this important second messenger in vascular homeostasis. In this study, we show that PKCaδ isoform promotes thrombininduced loss of human pulmonary artery EC barrier integrity, findings substantiated by PKCaδ inhibitory studies (rottlerin), dominant negative PKCaδ construct and PKCaδ silencing (siRNA). In addition, we identified PKCaδ as a signaling mediator upstream of both thrombininduced MLC phosphorylation and Rho GTPase activation affecting stress fiber formation, cell contraction and loss of EC barrier integrity. Our inhibitor-based studies indicate that thrombin-induced PKCaδ activation exerts a positive feedback on Rho GTPase activation and contributes to Rac1 GTPase inhibition. Moreover, PKD (or PKCμ) and CPI-17, two known PKCaδ targets, were found to be activated by PKCaδ in EC and served as modulators of cytoskeleton rearrangement. These studies clarify the role of PKCaδ in EC cytoskeleton regulation, and highlight PKCaδ as a therapeutic target in inflammatory lung disorders, characterized by the loss of barrier integrity, such as acute lung injury and sepsis.his work was supported by National Institutes of Health/ National Heart, Lung, and Blood Institute (NHLBI) P01HL58064 and R01HL91889 (JGNG), P01HL98050 (VN), R01HL96887 (JRJ) and T32HL007249 (GTK). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.>

Original languageEnglish (US)
Article numbere0158865
JournalPloS one
Volume11
Issue number7
DOIs
StatePublished - Jul 1 2016

Fingerprint

Protein Kinase C-delta
thrombin
Endothelial cells
protein kinase C
Thrombin
endothelial cells
Endothelial Cells
lungs
guanosinetriphosphatase
Lung
Protein Kinase C
rho GTP-Binding Proteins
Chemical activation
cytoskeleton
Cytoskeleton
Protein Isoforms
National Heart, Lung, and Blood Institute (U.S.)
National Institutes of Health
Stress Fibers
Phosphorylation

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Xie, L., Chiang, E. T., Wu, X., Kelly, G. T., Kanteti, P., Singleton, P. A., ... Jacobson, J. R. (2016). Regulation of thrombin-induced lung endothelial cell barrier disruption by protein kinase C delta. PloS one, 11(7), [e0158865]. https://doi.org/10.1371/journal.pone.0158865

Regulation of thrombin-induced lung endothelial cell barrier disruption by protein kinase C delta. / Xie, Lishi; Chiang, Eddie T.; Wu, Xiaomin; Kelly, Gabriel T.; Kanteti, Prasad; Singleton, Patrick A.; Camp, Sara M.; Zhou, Tingting; Dudek, Steven M.; Natarajan, Viswanathan; Wang, Ting; Black, Stephen Matthew; Garcia, Joe G.N.; Jacobson, Jeffrey R.

In: PloS one, Vol. 11, No. 7, e0158865, 01.07.2016.

Research output: Contribution to journalArticle

Xie, L, Chiang, ET, Wu, X, Kelly, GT, Kanteti, P, Singleton, PA, Camp, SM, Zhou, T, Dudek, SM, Natarajan, V, Wang, T, Black, SM, Garcia, JGN & Jacobson, JR 2016, 'Regulation of thrombin-induced lung endothelial cell barrier disruption by protein kinase C delta', PloS one, vol. 11, no. 7, e0158865. https://doi.org/10.1371/journal.pone.0158865
Xie, Lishi ; Chiang, Eddie T. ; Wu, Xiaomin ; Kelly, Gabriel T. ; Kanteti, Prasad ; Singleton, Patrick A. ; Camp, Sara M. ; Zhou, Tingting ; Dudek, Steven M. ; Natarajan, Viswanathan ; Wang, Ting ; Black, Stephen Matthew ; Garcia, Joe G.N. ; Jacobson, Jeffrey R. / Regulation of thrombin-induced lung endothelial cell barrier disruption by protein kinase C delta. In: PloS one. 2016 ; Vol. 11, No. 7.
@article{e853d652eca7479f82398b4cbe70c33d,
title = "Regulation of thrombin-induced lung endothelial cell barrier disruption by protein kinase C delta",
abstract = "Protein Kinase C (PKC) plays a significant role in thrombin-induced loss of endothelial cell (EC) barrier integrity; however, the existence of more than 10 isozymes of PKC and tissue-specific isoform expression has limited our understanding of this important second messenger in vascular homeostasis. In this study, we show that PKCaδ isoform promotes thrombininduced loss of human pulmonary artery EC barrier integrity, findings substantiated by PKCaδ inhibitory studies (rottlerin), dominant negative PKCaδ construct and PKCaδ silencing (siRNA). In addition, we identified PKCaδ as a signaling mediator upstream of both thrombininduced MLC phosphorylation and Rho GTPase activation affecting stress fiber formation, cell contraction and loss of EC barrier integrity. Our inhibitor-based studies indicate that thrombin-induced PKCaδ activation exerts a positive feedback on Rho GTPase activation and contributes to Rac1 GTPase inhibition. Moreover, PKD (or PKCμ) and CPI-17, two known PKCaδ targets, were found to be activated by PKCaδ in EC and served as modulators of cytoskeleton rearrangement. These studies clarify the role of PKCaδ in EC cytoskeleton regulation, and highlight PKCaδ as a therapeutic target in inflammatory lung disorders, characterized by the loss of barrier integrity, such as acute lung injury and sepsis.his work was supported by National Institutes of Health/ National Heart, Lung, and Blood Institute (NHLBI) P01HL58064 and R01HL91889 (JGNG), P01HL98050 (VN), R01HL96887 (JRJ) and T32HL007249 (GTK). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.>",
author = "Lishi Xie and Chiang, {Eddie T.} and Xiaomin Wu and Kelly, {Gabriel T.} and Prasad Kanteti and Singleton, {Patrick A.} and Camp, {Sara M.} and Tingting Zhou and Dudek, {Steven M.} and Viswanathan Natarajan and Ting Wang and Black, {Stephen Matthew} and Garcia, {Joe G.N.} and Jacobson, {Jeffrey R.}",
year = "2016",
month = "7",
day = "1",
doi = "10.1371/journal.pone.0158865",
language = "English (US)",
volume = "11",
journal = "PLoS One",
issn = "1932-6203",
publisher = "Public Library of Science",
number = "7",

}

TY - JOUR

T1 - Regulation of thrombin-induced lung endothelial cell barrier disruption by protein kinase C delta

AU - Xie, Lishi

AU - Chiang, Eddie T.

AU - Wu, Xiaomin

AU - Kelly, Gabriel T.

AU - Kanteti, Prasad

AU - Singleton, Patrick A.

AU - Camp, Sara M.

AU - Zhou, Tingting

AU - Dudek, Steven M.

AU - Natarajan, Viswanathan

AU - Wang, Ting

AU - Black, Stephen Matthew

AU - Garcia, Joe G.N.

AU - Jacobson, Jeffrey R.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - Protein Kinase C (PKC) plays a significant role in thrombin-induced loss of endothelial cell (EC) barrier integrity; however, the existence of more than 10 isozymes of PKC and tissue-specific isoform expression has limited our understanding of this important second messenger in vascular homeostasis. In this study, we show that PKCaδ isoform promotes thrombininduced loss of human pulmonary artery EC barrier integrity, findings substantiated by PKCaδ inhibitory studies (rottlerin), dominant negative PKCaδ construct and PKCaδ silencing (siRNA). In addition, we identified PKCaδ as a signaling mediator upstream of both thrombininduced MLC phosphorylation and Rho GTPase activation affecting stress fiber formation, cell contraction and loss of EC barrier integrity. Our inhibitor-based studies indicate that thrombin-induced PKCaδ activation exerts a positive feedback on Rho GTPase activation and contributes to Rac1 GTPase inhibition. Moreover, PKD (or PKCμ) and CPI-17, two known PKCaδ targets, were found to be activated by PKCaδ in EC and served as modulators of cytoskeleton rearrangement. These studies clarify the role of PKCaδ in EC cytoskeleton regulation, and highlight PKCaδ as a therapeutic target in inflammatory lung disorders, characterized by the loss of barrier integrity, such as acute lung injury and sepsis.his work was supported by National Institutes of Health/ National Heart, Lung, and Blood Institute (NHLBI) P01HL58064 and R01HL91889 (JGNG), P01HL98050 (VN), R01HL96887 (JRJ) and T32HL007249 (GTK). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.>

AB - Protein Kinase C (PKC) plays a significant role in thrombin-induced loss of endothelial cell (EC) barrier integrity; however, the existence of more than 10 isozymes of PKC and tissue-specific isoform expression has limited our understanding of this important second messenger in vascular homeostasis. In this study, we show that PKCaδ isoform promotes thrombininduced loss of human pulmonary artery EC barrier integrity, findings substantiated by PKCaδ inhibitory studies (rottlerin), dominant negative PKCaδ construct and PKCaδ silencing (siRNA). In addition, we identified PKCaδ as a signaling mediator upstream of both thrombininduced MLC phosphorylation and Rho GTPase activation affecting stress fiber formation, cell contraction and loss of EC barrier integrity. Our inhibitor-based studies indicate that thrombin-induced PKCaδ activation exerts a positive feedback on Rho GTPase activation and contributes to Rac1 GTPase inhibition. Moreover, PKD (or PKCμ) and CPI-17, two known PKCaδ targets, were found to be activated by PKCaδ in EC and served as modulators of cytoskeleton rearrangement. These studies clarify the role of PKCaδ in EC cytoskeleton regulation, and highlight PKCaδ as a therapeutic target in inflammatory lung disorders, characterized by the loss of barrier integrity, such as acute lung injury and sepsis.his work was supported by National Institutes of Health/ National Heart, Lung, and Blood Institute (NHLBI) P01HL58064 and R01HL91889 (JGNG), P01HL98050 (VN), R01HL96887 (JRJ) and T32HL007249 (GTK). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.>

UR - http://www.scopus.com/inward/record.url?scp=84980002270&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84980002270&partnerID=8YFLogxK

U2 - 10.1371/journal.pone.0158865

DO - 10.1371/journal.pone.0158865

M3 - Article

C2 - 27442243

AN - SCOPUS:84980002270

VL - 11

JO - PLoS One

JF - PLoS One

SN - 1932-6203

IS - 7

M1 - e0158865

ER -