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2018 ; 2018
(ä): 4286364
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Beneficial or Harmful Role of Macrophages in Guillain-Barré Syndrome and
Experimental Autoimmune Neuritis
#MMPMID29853789
Shen D
; Chu F
; Lang Y
; Geng Y
; Zheng X
; Zhu J
; Liu K
Mediators Inflamm
2018[]; 2018
(ä): 4286364
PMID29853789
show ga
Guillain-Barré syndrome (GBS), an immune-mediated demyelinating peripheral
neuropathy, is characterized by acute weakness of the extremities and areflexia
or hyporeflexia. Experimental autoimmune neuritis (EAN) is a common animal model
for GBS, which represents a CD4(+) T cell-mediated inflammatory autoimmune
demyelination of the peripheral nervous system (PNS), and is used to investigate
the pathogenic mechanism of GBS. It has been found that macrophages play a
critical role in the pathogenesis of both GBS and EAN. Macrophages have been
primarily classified into two major phenotypes: proinflammatory macrophages (M1)
and anti-inflammatory macrophages (M2). The two different macrophage subsets M1
and M2 may play a decisive role in initiation and development of GBS and EAN.
However, recently, it has been indicated that the roles of macrophages in immune
regulation and autoimmune diseases are more complex than those suggested by a
simple M1-M2 dichotomy. Macrophages might exert either inflammatory or
anti-inflammatory effect by secreting pro- or anti-inflammatory cytokines, and
either inducing the activation of T cells to mediate immune response, resulting
in inflammation and demyelination in the PNS, or promoting disease recovery. In
this review, we summarize the dual roles of macrophages in GBS and EAN and
explore the mechanism of macrophage polarization to provide a potential
therapeutic approach for GBS in the future.