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2017 ; 14
(4
): 4883-4889
Nephropedia Template TP
gab.com Text
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English Wikipedia
Krüppel-like factor 8 induces epithelial-to-mesenchymal transition and promotes
invasion of pancreatic cancer cells through transcriptional activation of four
and a half LIM-only protein 2
#MMPMID28943967
Yi X
; Zai H
; Long X
; Wang X
; Li W
; Li Y
Oncol Lett
2017[Oct]; 14
(4
): 4883-4889
PMID28943967
show ga
Pancreatic cancer (PC) is one of the most aggressive types of cancer with an
extremely poor prognosis. Invasive growth and early metastasis is one of the
greatest challenges to overcome for the treatment of PC. Numerous previous
studies have indicated that the transcription factor Krüppel-like factor 8 (KLF8)
and nuclear cofactor four and a half LIM-only protein 2 (FHL2) serve important
roles in tumorigenesis and tumor progression; however, their roles in PC remain
elusive. The present study revealed that KLF8 and FHL2 expression is aberrantly
co-overexpressed in PC tissue samples and associated with tumor metastasis.
Furthermore, a positive correlation between the expression levels of KLF8 and
FHL2 was observed. Subsequently, the present study identified KLF8 as a critical
inducer of epithelial-to-mesenchymal transition (EMT) and invasion. Of note, the
present study demonstrated that KLF8 overexpression induced a strong increase in
FHL2 expression, and subsequent promoter reporter assays determined that KLF8
directly bound and activated the FHL2 gene promoter. Furthermore, FHL2 knockdown
in KLF8-overexpressing cells partially reversed the EMT and invasive phenotypes.
The present study identified KLF8-induced FHL2 activation as a novel and critical
signaling mechanism underlying human PC invasion.