Is protease activity involved in fast axonal transport?
(1984) In Acta Physiologica Scandinavica 121(4). p.379-384- Abstract
N‐a‐p‐Tosyl‐L‐Lysine Chloromethyl Ketone (TLCK), a protease inhibitor, was found to irreversibly inhibit rapid axonal transport of protein in vitro in the frog sciatic nerve. TLCK exerted its action at the axonal level and seemed to depress the rate rather than the amount of transported protein. The efficiency of TLCK as a protease inhibitor was demonstrated by polyacrylamide gel electrophoresis, which showed that degradation of high molecular weight proteins (presumably neurofilament subunits) into a 25 000 dalton protein could be induced by exposing the frog nerves to triton‐X and prevented by the presence of TLCK. Findings that TLCK, at a transport inhibiting concentration (0.1 mM), had little or no effects on either protein... (More)
N‐a‐p‐Tosyl‐L‐Lysine Chloromethyl Ketone (TLCK), a protease inhibitor, was found to irreversibly inhibit rapid axonal transport of protein in vitro in the frog sciatic nerve. TLCK exerted its action at the axonal level and seemed to depress the rate rather than the amount of transported protein. The efficiency of TLCK as a protease inhibitor was demonstrated by polyacrylamide gel electrophoresis, which showed that degradation of high molecular weight proteins (presumably neurofilament subunits) into a 25 000 dalton protein could be induced by exposing the frog nerves to triton‐X and prevented by the presence of TLCK. Findings that TLCK, at a transport inhibiting concentration (0.1 mM), had little or no effects on either protein synthesis or ATP levels, suggest that TLCK did not affect transport due to general cytotoxic properties. The effects of TLCK is discussed in relation to possible roles of protease activity in axonal transport.
(Less)
- author
- EDSTRÖM, Anders LU ; EKSTRÖM, Per LU and KANJE, Martin LU
- organization
- publishing date
- 1984
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- axonal transport, Ca, Protease inhibition
- in
- Acta Physiologica Scandinavica
- volume
- 121
- issue
- 4
- pages
- 6 pages
- publisher
- Wiley-Blackwell
- external identifiers
-
- scopus:0021262856
- pmid:6207705
- ISSN
- 0001-6772
- DOI
- 10.1111/j.1748-1716.1984.tb07469.x
- language
- English
- LU publication?
- yes
- id
- 7d2fa2e1-cbd7-4200-8ed1-7463f71c783a
- date added to LUP
- 2016-12-07 14:23:25
- date last changed
- 2025-01-12 17:04:34
@article{7d2fa2e1-cbd7-4200-8ed1-7463f71c783a,
abstract = {{<p>N‐a‐p‐Tosyl‐L‐Lysine Chloromethyl Ketone (TLCK), a protease inhibitor, was found to irreversibly inhibit rapid axonal transport of protein in vitro in the frog sciatic nerve. TLCK exerted its action at the axonal level and seemed to depress the rate rather than the amount of transported protein. The efficiency of TLCK as a protease inhibitor was demonstrated by polyacrylamide gel electrophoresis, which showed that degradation of high molecular weight proteins (presumably neurofilament subunits) into a 25 000 dalton protein could be induced by exposing the frog nerves to triton‐X and prevented by the presence of TLCK. Findings that TLCK, at a transport inhibiting concentration (0.1 mM), had little or no effects on either protein synthesis or ATP levels, suggest that TLCK did not affect transport due to general cytotoxic properties. The effects of TLCK is discussed in relation to possible roles of protease activity in axonal transport.</p>}},
author = {{EDSTRÖM, Anders and EKSTRÖM, Per and KANJE, Martin}},
issn = {{0001-6772}},
keywords = {{axonal transport; Ca; Protease inhibition}},
language = {{eng}},
number = {{4}},
pages = {{379--384}},
publisher = {{Wiley-Blackwell}},
series = {{Acta Physiologica Scandinavica}},
title = {{Is protease activity involved in fast axonal transport?}},
url = {{http://dx.doi.org/10.1111/j.1748-1716.1984.tb07469.x}},
doi = {{10.1111/j.1748-1716.1984.tb07469.x}},
volume = {{121}},
year = {{1984}},
}