Myelin phagocytosis by macrophages and nonmacrophages during Wallerian degeneration

The literature concerning Schwann cells (SCs) and macrophages in myelin phagocytosis during Wallerian degeneration is reviewed. SCs carry out the first step in the removal of myelin by segmenting myelin and then incorporating the degraded myelin. The recruited macrophages then join in the myelin‐pha...

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Veröffentlicht in:Microscopy research and technique 2002-06, Vol.57 (6), p.541-547
Hauptverfasser: Hirata, Kazuho, Kawabuchi, Masaru
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description The literature concerning Schwann cells (SCs) and macrophages in myelin phagocytosis during Wallerian degeneration is reviewed. SCs carry out the first step in the removal of myelin by segmenting myelin and then incorporating the degraded myelin. The recruited macrophages then join in the myelin‐phagocytosis event, appearing to make full use of their original phagocyte abilities until the end of myelin clearance. The molecular mechanisms of the two cells underlying myelin phagocytosis are thought to be different; myelin phagocytosis by SCs being lectin‐mediated, i.e., opsonin‐independent, whereas that of macrophages is mainly opsonin‐dependent. It is important to note that SCs and macrophages cooperatively accomplish myelin phagocytosis. Microsc. Res. Tech. 57:541–547, 2002. © 2002 Wiley‐Liss, Inc.
doi_str_mv 10.1002/jemt.10108
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source Wiley Online Library - AutoHoldings Journals; MEDLINE
subjects Animals
confocal laser scanning microscopy
Humans
Immunohistochemistry
Macrophages - immunology
Microscopy, Confocal
myelin sheath
Myelin Sheath - immunology
Myelin Sheath - physiology
Phagocytosis
Rats
Schwann cells
Schwann Cells - immunology
Sciatic Nerve - ultrastructure
Wallerian Degeneration - physiopathology
title Myelin phagocytosis by macrophages and nonmacrophages during Wallerian degeneration
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