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Axonal outgrowth in muscle grafts made acellular by chemical extraction

Arai, Takeru ; Kanje, Martin LU ; Lundborg, Göran LU ; Sondell, Mariann ; Liu, Xiao Lin and Dahlin, Lars B. LU orcid (2000) In Restorative Neurology and Neuroscience 17(4). p.165-174
Abstract

Purpose: To compare nerve regeneration in autologous detergent extracted and freeze-thawed muscle grafts and to electrophoretically characterize the grafts. Methods: Autologous acellular muscle grafts were created either by freeze/thawing or by detergent extraction and then used to bridge a 10 mm gap in rat sciatic nerve. The autologous grafts were compared with respect to protein content, using electrophoresis preimplantation, and axonal outgrowth, Schwann cell and macrophage content, using immunocytochemistry (neurofilaments, S-100 protein, ED 1 macrophages) at 5-20 days postimplantation. Results: The extracted muscle grafts were elastic, but the amount of several proteins was reduced and laminin was still present at a position of... (More)

Purpose: To compare nerve regeneration in autologous detergent extracted and freeze-thawed muscle grafts and to electrophoretically characterize the grafts. Methods: Autologous acellular muscle grafts were created either by freeze/thawing or by detergent extraction and then used to bridge a 10 mm gap in rat sciatic nerve. The autologous grafts were compared with respect to protein content, using electrophoresis preimplantation, and axonal outgrowth, Schwann cell and macrophage content, using immunocytochemistry (neurofilaments, S-100 protein, ED 1 macrophages) at 5-20 days postimplantation. Results: The extracted muscle grafts were elastic, but the amount of several proteins was reduced and laminin was still present at a position of basal laminae of the muscle fibers. The freeze/thawed grafts were brittle and lacked elasticity, but resulted in minor changes in major proteins. The axons regenerated through both types of grafts (initial delay 6 days and rate 0.7-0.8 mm/day), which shrunk in length by 25 %. There were no apparent differences with respect to Schwann cells and macrophages. Conclusions: The results suggest that detergent extracted mucle tissue, in which some basal lamina proteins remain but cells are removed, could present a new favourable option for nerve grafting.

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Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
keywords
Axons, Extraction, Macrophages, Muscle, Nerve grafts, Nerve regeneration, Schwann cells
in
Restorative Neurology and Neuroscience
volume
17
issue
4
pages
165 - 174
publisher
IOS Press
external identifiers
  • scopus:0034437578
ISSN
0922-6028
language
English
LU publication?
yes
id
13c31f1f-67bd-4a2e-b8ff-0fc90e754895
alternative location
https://content.iospress.com/articles/restorative-neurology-and-neuroscience/rnn00154
date added to LUP
2019-06-17 14:04:33
date last changed
2025-04-04 01:17:09
@article{13c31f1f-67bd-4a2e-b8ff-0fc90e754895,
  abstract     = {{<p>Purpose: To compare nerve regeneration in autologous detergent extracted and freeze-thawed muscle grafts and to electrophoretically characterize the grafts. Methods: Autologous acellular muscle grafts were created either by freeze/thawing or by detergent extraction and then used to bridge a 10 mm gap in rat sciatic nerve. The autologous grafts were compared with respect to protein content, using electrophoresis preimplantation, and axonal outgrowth, Schwann cell and macrophage content, using immunocytochemistry (neurofilaments, S-100 protein, ED 1 macrophages) at 5-20 days postimplantation. Results: The extracted muscle grafts were elastic, but the amount of several proteins was reduced and laminin was still present at a position of basal laminae of the muscle fibers. The freeze/thawed grafts were brittle and lacked elasticity, but resulted in minor changes in major proteins. The axons regenerated through both types of grafts (initial delay 6 days and rate 0.7-0.8 mm/day), which shrunk in length by 25 %. There were no apparent differences with respect to Schwann cells and macrophages. Conclusions: The results suggest that detergent extracted mucle tissue, in which some basal lamina proteins remain but cells are removed, could present a new favourable option for nerve grafting.</p>}},
  author       = {{Arai, Takeru and Kanje, Martin and Lundborg, Göran and Sondell, Mariann and Liu, Xiao Lin and Dahlin, Lars B.}},
  issn         = {{0922-6028}},
  keywords     = {{Axons; Extraction; Macrophages; Muscle; Nerve grafts; Nerve regeneration; Schwann cells}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{165--174}},
  publisher    = {{IOS Press}},
  series       = {{Restorative Neurology and Neuroscience}},
  title        = {{Axonal outgrowth in muscle grafts made acellular by chemical extraction}},
  url          = {{https://content.iospress.com/articles/restorative-neurology-and-neuroscience/rnn00154}},
  volume       = {{17}},
  year         = {{2000}},
}