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2018 ; 9
(2
): 25
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Human colorectal cancer-derived mesenchymal stem cells promote colorectal cancer
progression through IL-6/JAK2/STAT3 signaling
#MMPMID29348540
Zhang X
; Hu F
; Li G
; Li G
; Yang X
; Liu L
; Zhang R
; Zhang B
; Feng Y
Cell Death Dis
2018[Jan]; 9
(2
): 25
PMID29348540
show ga
Mesenchymal stem cells (MSCs) have been reported to localize in colorectal
carcinomas, and participate in the formation of the tumor microenvironment. They
have recently been isolated from colorectal cancer tissues, and are implicated in
the growth, invasion, and metastasis of cancer cells. However, the roles and
detailed mechanisms associated with human colorectal cancer-derived MSCs
(CC-MSCs) have not been fully addressed. In this study, we found that CC-MSCs
increased the migration and invasion of colorectal cancer cells and promoted the
tumorigenesis of colorectal cancer through epithelial-to-mesenchymal transition
(EMT) in vitro. We also found that CC-MSCs enhanced the growth and metastasis of
colorectal cancer in vivo. Mechanistically, we determined that interleukin-6
(IL-6) was the most highly expressed cytokine in the CC-MSC conditioned medium,
and promoted the progression of colorectal cancer cells through IL-6/JAK2/STAT3
signaling, which activated PI3K/AKT signaling. We used anti-IL-6 antibody to
target IL-6. Collectively, these results reveal that the IL-6 secreted by CC-MSCs
enhances the progression of colorectal cancer cells through IL-6/JAK2/STAT3
signaling, and could provide a novel therapeutic or preventive target.