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2018 ; 8
(1
): 6415
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Pivotal roles of Kupffer cells in the progression and regression of DDC-induced
chronic cholangiopathy
#MMPMID29686325
Jemail L
; Miyao M
; Kotani H
; Kawai C
; Minami H
; Abiru H
; Tamaki K
Sci Rep
2018[Apr]; 8
(1
): 6415
PMID29686325
show ga
Kupffer cells (KCs) are key players in maintaining tissue homeostasis and are
involved in various liver diseases. However, the roles of KCs in the pathogenesis
of cholangiopathy are largely unknown. We aimed to investigate the precise roles
of KCs in both the progression and regression phases of the
3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC)-induced cholangiopathy model. In
the early phase of DDC-induced cholangiopathy, the number of KCs significantly
increased over time. Moreover, KCs were associated with abnormal phenotypic
changes in other liver cells, such as hepatocytes, biliary epithelial cells,
liver sinusoidal endothelial cells, and hepatic stellate cells. In contrast, KC
depletion by clodronate administration suppressed the progression of the disease,
and maintained the phenotypes of other cells. In the regression phase, the
numbers of KCs significantly decreased, and the cells redifferentiated to their
quiescent state. In contrast, KC depletion delayed the recovery of cells by
maintaining other liver cells in an active state. These findings suggest that KCs
play detrimental roles in the progression phase; however, they are beneficial in
the regression phase by mediating interactions between other liver cells. Our
data provide new insights into the roles of KCs in the pathogenesis of
cholangiopathy.