Mechanotransduction channels of the trabecular meshwork

Vu T. Tran, Phi T. Ho, Lais Cabrera, Juan E. Torres, Sanjoy K. Bhattacharya

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Purpose: To determine whether the trabecular meshwork (TM), like the other organs engaged in filter like activities (such as kidneys), show the expression of known mechanotransduction channels at protein level. Methods: Human donor eye globes (n = 20), Donor eye derived TM tissue and primary TM cells were utilized for these studies. Commercially available antibodies to channels, immunohisto-and immunocytochemistry, Western blot and mass spectrometric analyses were performed to determine the presence of mechanosensitive channels at protein level. The study was performed adhering to tenets of declaration of Helsinki. Results: We demonstrate here the presence of 11 mechanotransduction channels (Piezo1, Piezo2, TASK1, TREK1, TRPA1, TRPC1, TRPC2, TRPC3, TRPC6, TRPM2, TRPP2) as expressed protein in the TM tissue and at the isolated TM cell level. Presence of at least one known isoform of these channels was demonstrated using Western blot analyses. Conclusions: We demonstrated the presence of 11 mechanotransduction channels in the TM and in isolated TM cells at protein level. Demonstration of these channels as proteins at tissue and cellular level will pave the way for further experimentation.

Original languageEnglish (US)
Pages (from-to)291-303
Number of pages13
JournalCurrent Eye Research
Issue number3
StatePublished - Mar 2014


  • Mechanotransduction channel
  • Piezo1
  • Piezo2
  • Trabecular meshwork
  • TRPM2

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience


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