Regulation of vascular endothelial cell barrier function and cytoskeleton structure by protein phosphatases of the PPP family

Csilla Csortos, Irina Kolosova, Alexander D. Verin

Research output: Contribution to journalReview article

41 Scopus citations


Reversible phosphorylation of cytoskeletal and cytoskeleton-associated proteins is a significant element of endothelial barrier function regulation. Therefore, understanding the mechanisms of phosphorylation/dephosphorylation of endothelial cell cytoskeletal proteins is vital to the treatment of severe lung disorders such as high permeability pulmonary edema. In vivo, there is a controlled balance between the activities of protein kinases and phosphatases. Due to various external or internal signals, this balance may be shifted. The actual balances at a given time alter the phosphorylation level of certain proteins with appropriate physiological consequences. The latest information about the structure and regulation of different types of Ser/Thr protein phosphatases participating in the regulation of endothelial cytoskeletal organization and barrier function will be reviewed here.

Original languageEnglish (US)
Pages (from-to)L843-L854
JournalAmerican Journal of Physiology - Lung Cellular and Molecular Physiology
Issue number4
Publication statusPublished - Oct 1 2007



  • Endothelial barrier function
  • Ser/Thr protein phosphatases

ASJC Scopus subject areas

  • Physiology
  • Pulmonary and Respiratory Medicine
  • Physiology (medical)
  • Cell Biology

Cite this