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https://www.readbyqxmd.com/read/28986741/kr%C3%A3-ppel-like-factor-8-overexpression-correlates-with-poor-prognosis-in-non-small-cell-lung-cancer
#1
Jianchao Li, Yifei Liu, Jianhua Xue, Mingming Xu, Jianguo Zhang, Junhua Liu, Wenyi Wang
Krüppel-like factor 8 (KLF8) plays a key role in cancer progression. However, its expression pattern and relationship with clinicopathological characteristics in non-small cell lung cancer (NSCLC) has not been completely elucidated. The study aimed to investigate the expression of KLF8 and its correlation with clinical pathologic features in NSCLC and to explore the potential mechanism. The expression of KLF8 in NSCLC was detected by RT-PCR, Western blot and immunohistochemistry. The expression of Vimentin and E-cadherin, epithelial-mesenchymal transition (EMT) markers, were detected by immunohistochemistry in the NSCLC...
October 6, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28943967/kr%C3%A3-ppel-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
#2
Xiaoping Yi, Hongyan Zai, Xueying Long, Xiaoyi Wang, Wenzheng Li, Yixiong Li
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...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28842254/mir-1236-3p-suppresses-the-migration-and-invasion-by-targeting-klf8-in-lung-adenocarcinoma-a549%C3%A2-cells
#3
Tingting Bian, Daishan Jiang, Jian Liu, Xiaopeng Yuan, Jia Feng, Qian Li, Qing Zhang, Xiaoli Li, Yifei Liu, Jianguo Zhang
MicroRNAs (miRNAs) have a great effect on regulating tumor cell migration, invasion, proliferation and prognosis. However, the mechanism of miR-1236-3p on regulating carcinogenesis is still unknown. In this study, the expression of miR-1236-3p was lower in lung adenocarcinoma tissues than that in adjacent normal tissue. In lung adenocarcinoma A549 cell line, miR-1236-3p decreased ability of cell invasion and migration, furthermore, we show that KLF8 is targeted by miR-1236-3p, and expression of miR-1236-3p is negatively correlated with KLF8...
August 24, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28810596/expression-of-kruppel-like-factor-8-and-ki67-in-lung-adenocarcinoma-and-prognosis
#4
Yifei Liu, Xiufang Yao, Qing Zhang, Li Qian, Jia Feng, Tingting Bian, Jianguo Zhang, Ye Tian
Kruppel-like factor 8 (KLF8) belongs to the KLF family and has various roles in the regulation of the cell cycle, proliferation and tumor genesis. KLF8 is overexpressed in gastric, ovarian, breast and renal cancer. Additionally, KLF8 may affect invasion and metastasis of tumors. However, whether KLF8 also acts as an ontogeny in lung adenocarcinoma (LAC) remains unknown. The aim of the present study was to determine the association between KLF8 expression and various clinical and pathological parameters. Western blot assays and immune histochemistry analyses revealed that KLF8 level in LAC tissues was higher than that in the normal lung tissues and KLF8 expression was significantly associated with clinical variables (P<0...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28716076/klf8-regulates-left-right-asymmetric-patterning-through-modulation-of-kupffer-s-vesicle-morphogenesis-and-spaw-expression
#5
Che-Yi Lin, Ming-Yuan Tsai, Yu-Hsiu Liu, Yu-Fen Lu, Yi-Chung Chen, Yun-Ren Lai, Hsin-Chi Liao, Huang-Wei Lien, Chung-Hsiang Yang, Chang-Jen Huang, Sheng-Ping L Hwang
BACKGROUND: Although vertebrates are bilaterally symmetric organisms, their internal organs are distributed asymmetrically along a left-right axis. Disruption of left-right axis asymmetric patterning often occurs in human genetic disorders. In zebrafish embryos, Kupffer's vesicle, like the mouse node, breaks symmetry by inducing asymmetric expression of the Nodal-related gene, spaw, in the left lateral plate mesoderm (LPM). Spaw then stimulates transcription of itself and downstream genes, including lft1, lft2, and pitx2, specifically in the left side of the diencephalon, heart and LPM...
July 17, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28066139/regulation-of-vascular-smooth-muscle-phenotype-by-cross-regulation-of-kr%C3%A3-ppel-like-factors
#6
Jung Min Ha, Sung Ji Yun, Seo Yeon Jin, Hye Sun Lee, Sun Ja Kim, Hwa Kyoung Shin, Sun Sik Bae
Regulation of vascular smooth muscle cell (VSMC) phenotype plays an essential role in many cardiovascular diseases. In the present study, we provide evidence that krüppel-like factor 8 (KLF8) is essential for tumor necrosis factor α (TNFα)-induced phenotypic conversion of VSMC obtained from thoracic aorta from 4-week-old SD rats. Stimulation of the contractile phenotype of VSMCs with TNFα significantly reduced the VSMC marker gene expression and KLF8. The gene expression of KLF8 was blocked by TNFα stimulation in an ERK-dependent manner...
January 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28042023/diverse-pathways-of-epithelial-mesenchymal-transition-related-with-cancer-progression-and-metastasis-and-potential-effects-of-endocrine-disrupting-chemicals-on-epithelial-mesenchymal-transition-process
#7
Hae-Miru Lee, Kyung-A Hwang, Kyung-Chul Choi
Endocrine disrupting chemicals (EDCs) are natural or synthetic compounds that interfere with normal functions of natural hormones in the body, leading to a disruption of the endocrine system. Specifically, EDCs have the potential to cause formation of several hormone-dependent cancers, including breast, ovarian, and prostate cancers. Epithelial mesenchymal transition (EMT) process by which epithelial cells lose their cell polarity and cell-cell adhesion and acquire mesenchymal phenotype is closely associated with malignant transformation and the initiation of cancer metastasis...
December 29, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27871329/high-expression-of-epb41l5-an-integral-component-of-the-arf6-driven-mesenchymal-program-correlates-with-poor-prognosis-of-squamous-cell-carcinoma-of-the-tongue
#8
Yutaro Otsuka, Hiroki Sato, Tsukasa Oikawa, Yasuhito Onodera, Jin-Min Nam, Ari Hashimoto, Kiyoshi Fukunaga, Kanako C Hatanaka, Yutaka Hatanaka, Yoshihiro Matsuno, Satoshi Fukuda, Hisataka Sabe
BACKGROUND: Squamous cell carcinoma of the tongue (tongue SCC) is a major subtype of head and neck squamous cell carcinoma (HNSCC), which is an intractable cancer under current therapeutics. ARF6 and its effector AMAP1 are often overexpressed in different types of cancers, such as breast cancer and renal cancer, and in these cancers, AMAP1 binds to EPB41L5 to promote invasion, metastasis, and drug resistance. EPB41L5 is a mesenchymal-specific protein, normally induced during epithelial-mesenchymal transition (EMT) to promote focal adhesion dynamics...
November 21, 2016: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/27818134/transcriptomic-characterization-of-sf3b1-mutation-reveals-its-pleiotropic-effects-in-chronic-lymphocytic-leukemia
#9
Lili Wang, Angela N Brooks, Jean Fan, Youzhong Wan, Rutendo Gambe, Shuqiang Li, Sarah Hergert, Shanye Yin, Samuel S Freeman, Joshua Z Levin, Lin Fan, Michael Seiler, Silvia Buonamici, Peter G Smith, Kevin F Chau, Carrie L Cibulskis, Wandi Zhang, Laura Z Rassenti, Emanuela M Ghia, Thomas J Kipps, Stacey Fernandes, Donald B Bloch, Dylan Kotliar, Dan A Landau, Sachet A Shukla, Jon C Aster, Robin Reed, David S DeLuca, Jennifer R Brown, Donna Neuberg, Gad Getz, Kenneth J Livak, Matthew M Meyerson, Peter V Kharchenko, Catherine J Wu
Mutations in SF3B1, which encodes a spliceosome component, are associated with poor outcome in chronic lymphocytic leukemia (CLL), but how these contribute to CLL progression remains poorly understood. We undertook a transcriptomic characterization of primary human CLL cells to identify transcripts and pathways affected by SF3B1 mutation. Splicing alterations, identified in the analysis of bulk cells, were confirmed in single SF3B1-mutated CLL cells and also found in cell lines ectopically expressing mutant SF3B1...
November 14, 2016: Cancer Cell
https://www.readbyqxmd.com/read/27534536/single-cell-rna-seq-reveals-novel-regulators-of-human-embryonic-stem-cell-differentiation-to-definitive-endoderm
#10
Li-Fang Chu, Ning Leng, Jue Zhang, Zhonggang Hou, Daniel Mamott, David T Vereide, Jeea Choi, Christina Kendziorski, Ron Stewart, James A Thomson
BACKGROUND: Human pluripotent stem cells offer the best available model to study the underlying cellular and molecular mechanisms of human embryonic lineage specification. However, it is not fully understood how individual stem cells exit the pluripotent state and transition towards their respective progenitor states. RESULTS: Here, we analyze the transcriptomes of human embryonic stem cell-derived lineage-specific progenitors by single-cell RNA-sequencing (scRNA-seq)...
August 17, 2016: Genome Biology
https://www.readbyqxmd.com/read/27478926/kr%C3%A3-ppel-like-factor-8-promotes-cancer-stem-cell-like-traits-in-hepatocellular-carcinoma-through-wnt-%C3%AE-catenin-signaling
#11
Yi-Nan Shen, Hai-Guan He, Yang Shi, Jian Cao, Jian-Yong Yuan, Zhou-Chong Wang, Chun-Feng Shi, Nan Zhu, Yong-Peng Wei, Fang Liu, Jia-Li Huang, Guang-Shun Yang, Jun-Hua Lu
Krüppel-like factor 8 (KLF8) is highly expressed in hepatocellular carcinoma (HCC) and contributes to tumor initiation and progression by promoting HCC cell proliferation and invasion. However, the role of KLF8 in liver cancer stem cells (LCSCs) is not known. In the current study, we investigated the role of KLF8 in LCSCs to determine if KLF8 is a novel marker of these cells. We found that KLF8 was highly expressed in primary HCC tumors, distant migrated tissues, and LCSCs. Patients with high KLF8 expression had a poor prognosis...
February 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/27293988/erk2-phosphorylates-kr%C3%A3-ppel-like-factor-8-protein-at-serine-48-to-maintain-its-stability
#12
Satadru K Lahiri, Heng Lu, Debarati Mukherjee, Lin Yu, Jihe Zhao
Krüppel-like factor 8 (KLF8) plays important roles in cancer and is strictly regulated by various post-translational modifications such as sumoylation, acetylation, ubiquitylation and PARylation. Here we report a novel phosphorylation of KLF8 by ERK2 responsible and critical for the stability of KLF8 protein. The full-length KLF8 protein displays a doublet in SDS-PAGE gel. The upper band of the doublet, however, disappeared when the N-terminal 50 amino acids were deleted. In its full-length the upper band disappeared upon phosphatase treatment or mutation of the serine 48 (S48) to alanine whereas the lower band was lost when the S48 was mutated to aspartic acid that mimics phosphorylated S48...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27081861/klf8-promotes-temozolomide-resistance-in-glioma-cells-via-%C3%AE-catenin-activation
#13
Guo Yu, Fei Wu, Ersong Wang
BACKGROUND/AIMS: The transcription factor Krüppel-like factor (KLF) 8 plays important roles in tumorigenesis and tumor metastasis. However, the relationship between KLF8 and glioma cell chemoresistance is not known. METHODS: The effects of KLF8 on glioma cell proliferation, apoptosis and chemosensitivity to temozolomide (TMZ) were analyzed by Cell Counting Kit 8 assay and flow cytometry assay. A xenograft model was used to study the effect of KLF8 on tumor growth and sensitivity to TMZ...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/26995652/klf8-knockdown-triggered-growth-inhibition-and-induced-cell-phase-arrest-in-human-pancreatic-cancer-cells
#14
Xiaoping Yi, Yixiong Li, Hongyan Zai, Xueying Long, Wenzheng Li
BACKGROUND: The transcription factor Krüppel-like factor 8 (KLF8) plays an important role in tumor development and growth, but its role in pancreatic cancer (PC) is not clear. METHODS: KLF8 expression in human PC cell lines and tumor tissues was measured by quantitative real-time polymerase chain reaction and Western blot analyses. The effects of lentivirus mediated knockdown of KLF8 on proliferation and growth in Panc-1 pancreatic cancer cells were examined. RESULTS: KLF8 was overexpressed in 5 pancreatic cancer cell lines and in samples from patients with PC...
July 1, 2016: Gene
https://www.readbyqxmd.com/read/26993780/kr%C3%A3-ppel-like-factor-8-activates-the-transcription-of-c-x-c-cytokine-receptor-type-4-to-promote-breast-cancer-cell-invasion-transendothelial-migration-and-metastasis
#15
Debarati Mukherjee, Heng Lu, Lin Yu, Chunjiang He, Satadru K Lahiri, Tianshu Li, Jihe Zhao
Krüppel-like factor 8 (KLF8) has been strongly implicated in breast cancer metastasis. However, the underlying mechanisms remain largely unknown. Here we report a novel signaling from KLF8 to C-X-C cytokine receptor type 4 (CXCR4) in breast cancer. Overexpression of KLF8 in MCF-10A cells induced CXCR4 expression at both mRNA and protein levels, as determined by quantitative real-time PCR and immunoblotting. This induction was well correlated with increased Boyden chamber migration, matrigel invasion and transendothelial migration (TEM) of the cells towards the ligand CXCL12...
April 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/26320172/klf8-promotes-tumorigenesis-invasion-and-metastasis-of-colorectal-cancer-cells-by-transcriptional-activation-of-fhl2
#16
Qingqing Yan, Wenjing Zhang, Yao Wu, Meiyan Wu, Mengnan Zhang, Xinpeng Shi, Jinjun Zhao, Qingzhen Nan, Ye Chen, Long Wang, Tianming Cheng, Jiachu Li, Yang Bai, Side Liu, Jide Wang
The transcription factor Krüppel-like factor (KLF)8 plays an important role in the formation of several human tumors, including colorectal cancer. We recently identified four-and-a-half LIM protein 2 (FHL2) as a critical inducer of the epithelial-to-mesenchymal transition (EMT) and invasion. However, the molecular mechanism by which KLF8 affects FHL2-mediated tumor proliferation, EMT and metastasis remains unknown. Here, we showed that KLF8 overexpression promoted EMT and metastatic phenotypes. KLF8 expression was stimulated by transforming growth factor (TGF)-β1...
September 22, 2015: Oncotarget
https://www.readbyqxmd.com/read/26235874/mir-135a-inhibits-migration-and-invasion-and-regulates-emt-related-marker-genes-by-targeting-klf8-in-lung-cancer-cells
#17
Hongyang Shi, Yuqiang Ji, Dexin Zhang, Yun Liu, Ping Fang
Epithelial-mesenchymal transition (EMT) has been shown to be related to the pathogenesis of various diseases. Recently, microRNAs (miRNA) have been recognized as a new class of genes involved in human tumorigenesis. In this study, we found that the expression levels of miR-135a were dramatically decreased in NSCLC cell lines and clinical NSCLC tissue samples. Then, we demonstrated that miR-135a significantly suppressed the migration and invasion of lung cancer cells in vitro, suggesting that miR-135a may be a novel tumor suppressor...
September 11, 2015: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/26198170/kruppel-like-factor-family-genes-are-expressed-during-xenopus-embryogenesis-and-involved-in-germ-layer-formation-and-body-axis-patterning
#18
Yan Gao, Qing Cao, Lei Lu, Xuena Zhang, Zan Zhang, Xiaohua Dong, Wenshuang Jia, Ying Cao
BACKGROUND: Kruppel-like factors (Klfs) are a family of transcription factors consisting of 17 members in mammals, Klf1-Klf17, which are involved in fundamental cellular physiological procedures, such as cell proliferation, differentiation, and apoptosis. However, their functions in embryonic development have been poorly understood. Our previous study has demonstrated that the pluripotency factor Klf4 participates in germ layer formation and axis patterning of Xenopus embryos by means of the regulation of key developmental signals...
October 2015: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/26137099/small-hairpin-rna-mediated-kr%C3%A3-ppel-like-factor-8-gene-knockdown-inhibits-invasion-of-nasopharyngeal-carcinoma
#19
Jing Wang, Jian Li Hu, Ru Bo Cao, Qian Ding, Gang Peng, Shi Jiang Fei, Yao Jiang, Peng Cheng Li, Kun Yu Yang, Wen Jie Zhang, Gang Wu, Ruo Zheng Wang, Pin Dong Li
The present study aimed to characterize the expression of Krüppel-like factor 8 (KLF8) in nasopahryngeal carcinoma (NPC) cell lines and determine its effect on tumor development and invasion following KLF8 gene knockdown by small hairpin RNA (shRNA). KLF8 expression in four NPC cell lines was examined by quantitative polymerase chain reaction (qPCR) and western blotting. KLF8 was knocked down in the SUNE1-5-8F/Sh-KLF8 cell line using shRNA, and the resulting stable cell line SUNE1-5-8F-sh-KLF8 was transplanted into nude mice in order to observe tumor formation and invasion...
June 2015: Oncology Letters
https://www.readbyqxmd.com/read/26133391/suppression-of-klf8-induces-cell-differentiation-and-sensitizes-colorectal-cancer-to-5-fluorouracil
#20
Xinpeng Shi, Xiaoyong Luo, Qingqing Yan, Wenjing Zhang, Yao Wu, Mengnan Zhang, Jinjun Zhao, Ying Peng, Ye Chen, Yali Zhang, Cunlong Chen, Tianming Cheng, Chudi Chen, Side Liu, Yang Bai, Jide Wang
KLF8 is a member of the KLF transcription factor family that plays an important role in oncogenesis. However, the role of KLF8 in colorectal cancer remains unknown. The aims of the present study were to examine KLF8 expression in colorectal cancers, to determine the role of KLF8 in cell differentiation and to investigate the antiproliferative effect of KLF8 silencing. The expression of KLF8 and phospho-ERK proteins was analyzed, and the effects of KLF8 suppression on cell differentiation and growth were evaluated...
September 2015: Oncology Reports
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