TMPRSS2, a novel membrane-anchored mediator in cancer pain

David K. Lam, Dongmin Dang, Andrea N. Flynn, Markus Hardt, Brian Schmidt

Research output: Contribution to journalArticle

Abstract

More than half of all cancer patients have significant pain during the course of their disease. The strategic localization of TMPRSS2, a membrane-bound serine protease, on the cancer cell surface may allow it to mediate signal transduction between the cancer cell and its extracellular environment. We show that TMPRSS2 expression is not only dramatically increased in the primary cancers of patients but TMPRSS2 immunopositivity is also directly correlated with cancer pain severity in these patients. TMPRSS2 induced proteolytic activity, activated trigeminal neurons, and produced marked mechanical hyperalgesia when administered into the hind paw of wild-type mice but not PAR2-deficient mice. Coculture of human cancer cells with murine trigeminal neurons demonstrated colocalization of TMPRSS2 with PAR2. These results point to a novel role for a cell membrane-anchored mediator in cancer pain, as well as pain in general.

Original languageEnglish (US)
Pages (from-to)923-930
Number of pages8
JournalPain
Volume156
Issue number5
DOIs
StatePublished - May 1 2015

Fingerprint

Membranes
Neoplasms
Neurons
Pain
Hyperalgesia
Serine Proteases
Coculture Techniques
Signal Transduction
Cell Membrane
Cancer Pain

Keywords

  • Cancer pain
  • Head and neck cancer
  • PAR2
  • Proteases

ASJC Scopus subject areas

  • Clinical Neurology
  • Anesthesiology and Pain Medicine
  • Neurology
  • Pharmacology

Cite this

TMPRSS2, a novel membrane-anchored mediator in cancer pain. / Lam, David K.; Dang, Dongmin; Flynn, Andrea N.; Hardt, Markus; Schmidt, Brian.

In: Pain, Vol. 156, No. 5, 01.05.2015, p. 923-930.

Research output: Contribution to journalArticle

Lam, David K. ; Dang, Dongmin ; Flynn, Andrea N. ; Hardt, Markus ; Schmidt, Brian. / TMPRSS2, a novel membrane-anchored mediator in cancer pain. In: Pain. 2015 ; Vol. 156, No. 5. pp. 923-930.
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