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- W1565301559 abstract "Peripheral nerve regeneration is dependent on the ability of regenerating neurites to migrate through cellular debris and altered extracellular matrix at the injury site, grow along the residual distal nerve sheath conduit, and reinnervate synaptic targets. In cell culture, growth cones of regenerating axons secrete proteases, specifically plasminogen activators (PAs), which are believed to facilitate growth cone movement by digesting extracellular matrices and cell adhesions. In this study, the PA system was shown to be specifically activated in sensory neurons after sciatic nerve crush in adult mice. The number of sensory neurons expressing urokinase PA receptor (uPAR) mRNA levels increased above sham levels by 8 hr after crush, whereas the number of sensory neurons expressing uPA and tissue PA (tPA) mRNAs was significantly increased by 3 d after crush. PA mRNA levels were also increased at the crush site, with uPA mRNA elevated by 8 hr after crush and tPA and uPAR mRNA levels markedly increased by 7 d. PA-dependent enzymatic activity was significantly increased from 1 to 7 d after crush in nerves that had been crushed compared with uncrushed nerves. Immunohistochemistry showed that tPA was localized within regenerating axons of the sciatic nerve. There were no significant changes in plasminogen activator inhibitor 1 activity between crush and sham after the injury. These results clearly demonstrated that after injury the PA system was rapidly induced in sensory neurons, where it may play an important role in nerve regeneration in vivo ." @default.
- W1565301559 created "2016-06-24" @default.
- W1565301559 creator A5046683620 @default.
- W1565301559 creator A5063058067 @default.
- W1565301559 date "2001-06-15" @default.
- W1565301559 modified "2023-10-15" @default.
- W1565301559 title "Induction of the Plasminogen Activator System Accompanies Peripheral Nerve Regeneration after Sciatic Nerve Crush" @default.
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- W1565301559 doi "https://doi.org/10.1523/jneurosci.21-12-04336.2001" @default.
- W1565301559 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6762730" @default.
- W1565301559 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/11404419" @default.
- W1565301559 hasPublicationYear "2001" @default.
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