Plakophilin3 increases desmosome assembly, size and stability by increasing expression of desmocollin2

Mansa Gurjar, Kumarkrishna Raychaudhuri, Snehal Mahadik, Divya Reddy, Apurva Atak, Trupti Shetty, Kruthi Rao, Mansi S. Karkhanis, Prajakta Gosavi, Lalit Sehgal, Sanjay Gupta, Sorab N. Dalal

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Previous reports show that the desmosomal plaque protein plakophilin3 (PKP3) is essential for desmosome formation. Here, we report that PKP3 over-expression decreases calcium dependency for de novo desmosome formation and makes existing cell-cell adhesion junctions more resilient in low calcium medium due to an increase in desmocollin2 expression. PKP3 overexpression increases the stability of other desmosomal proteins independently of the increase in DSC2 levels and regulates desmosome formation and stability by a multimodal mechanism affecting transcription, protein stability and cell border localization of desmosomal proteins.

Original languageEnglish (US)
Pages (from-to)768-774
Number of pages7
JournalBiochemical and biophysical research communications
Volume495
Issue number1
DOIs
StatePublished - Jan 1 2018

Keywords

  • Adhesion
  • Desmocollin 2
  • Desmosome
  • Plakophilin 3

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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