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Myelin phagocytosis by macrophages and nonmacrophages during Wallerian degeneration
Author(s) -
Hirata Kazuho,
Kawabuchi Masaru
Publication year - 2002
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.10108
Subject(s) - wallerian degeneration , phagocytosis , myelin , degeneration (medical) , axonal degeneration , macrophage , chemistry , microbiology and biotechnology , immunology , biology , pathology , neuroscience , medicine , central nervous system , biochemistry , in vitro
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.