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Injury‐induced gelatinase and thrombin‐like activities in regenerating and nonregenerating nervous systems
Author(s) -
Friedmann Igor,
Faber-Elman Anat,
Yoles Eti,
Schwartz Michal
Publication year - 1999
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.13.3.533
Subject(s) - regeneration (biology) , gelatinases , nervous system , central nervous system , thrombin , medicine , nervous tissue , wound healing , sciatic nerve , neuroscience , gelatinase , peripheral nervous system , anatomy , biology , matrix metalloproteinase , microbiology and biotechnology , surgery , platelet
It is now widely accepted that injured nerves, like any other injured tissue, need assistance from their extracellular milieu in order to heal. We compared the postinjury activities of thrombin and gelatinases, two types of proteolytic activities known to be critically involved in tissue healing, in nonregenerative (rat optic nerve) and regenerative (fish optic nerve and rat sciatic nerve) neural tissue. Unlike gelatinases, whose induction pattern was comparable in all three nerves, thrombin‐like activity differed clearly between regenerating and nonregenerating nervous systems. Postinjury levels of this latter activity seem to dictate whether it will display beneficial or detrimental effects on the capacity of the tissue for repair. The results of this study further highlight the fact that tissue repair and nerve regeneration are closely linked and that substances that are not unique to the nervous system, but participate in wound healing in general, are also crucial for regeneration or its failure in the nervous system.—Friedmann, I., Faber‐Elman, A., Yoles, E., Schwartz, M. Injury‐induced gelatinase and thrombin‐like activities in regenerating and nonregenerating nervous systems. FASEB J. 13, 533–543 (1999)