TMPRSS2, a novel membrane-anchored mediator in cancer pain

Pain
David K LamBrian L Schmidt

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.

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Citations

May 7, 2016·Pain Management·David K Lam
Sep 3, 2020·Journal of Clinical Pathology·Michelle Thunders, Brett Delahunt
Jun 3, 2021·Current Issues in Molecular Biology·Abdulwahab H Alamir, Shankargouda Patil
Jul 9, 2021·British Journal of Pharmacology·Saravanan SubramaniamMarkus Bosmann

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