Roles of cytoskeletal and junctional plaque proteins in nuclear signaling

S. Hübner, D. A. Jans, D. Drenckhahn

Research output: Contribution to journalArticleResearchpeer-review

14 Citations (Scopus)

Abstract

Cytoplasmic junctional plaque proteins play an important role at intercellular junctions. They link transmembrane cell adhesion molecules to components of the cytoskeleton, thereby playing an important role in the control of many cellular processes. Recent studies on the subcellular distribution of some plaque proteins have revealed that a number of these proteins are able to localize in the nucleus. This dual location indicates that in addition to promoting adhesive interactions, plaque proteins may also play a direct role in nuclear processes, and in particular in the transfer of signals from the membrane to the nucleus. Therefore, translocation of plaque proteins into the nucleus in response to extracellular signals could represent a novel and direct mechanism by which signals can be transmitted from the plasma membrane to the nucleus. This could allow cells to respond to changing environmental conditions in a rapid and efficient way. In addition, conditional sequestration of karyophilic proteins at the sites of cell-cell and cell-substratum adhesion may represent a general mechanism for the regulation of nucleocytoplasmic transport.

Original languageEnglish
Pages (from-to)207-265
Number of pages59
JournalInternational Review of Cytology
Volume208
DOIs
Publication statusPublished - 1 Jan 2001
Externally publishedYes

Keywords

  • Cell junctions
  • Cytoskeleton
  • Nuclear localization sequence
  • Nuclear protein import
  • Nuclear signaling
  • Plaque proteins

Cite this