1 Global Burden of Disease Cancer C,Fitzmaurice C,Akinyemiju TF,et al.Global,regional,and national cancer incidence,mortality,years of life lost,years lived with disability,and disability-adjusted life-years for 29 cancer groups,1990 to 2016:a systematic analysis for the global burden of disease study[J].JAMA Oncol,2018,4(11):1553-1568. 2 Ghaleb AM,Yang VW.Kruppel-like factor 4(klf4):What we currently know[J].Gene,2017,611:27-37. 3 Stratton MR,Campbell PJ,Futreal PA.The cancer genome[J].Nature,2009,458(7239):719-724. 4 Patel NV,Ghaleb AM,Nandan MO,et al.Expression of the tumor suppressor kruppel-like factor 4 as a prognostic predictor for colon cancer[J].Cancer Epidemiol Biomarkers Prev,2010,19(10):2631-2638. 5 Leng Z,Li Y,Zhou G,et al.Kruppel-like factor 4 regulates stemness and mesenchymal properties of colorectal cancer stem cells through the tgf-beta1/smad/snail pathway[J].J Cell Mol Med,2020,24(2):1866-1877. 6 Ghaleb AM,Yang VW.The pathobiology of kruppel-like factors in colorectal cancer[J].Curr Colorectal Cancer Rep,2008,4(2):59-64. 7 Chen X,Whitney EM,Gao SY,et al.Transcriptional profiling of kruppel-like factor 4 reveals a function in cell cycle regulation and epithelial differentiation[J].J Mol Biol,2003,326(3):665-677. 8 Zhao W,Hisamuddin IM,Nandan MO,et al.Identification of kruppel-like factor 4 as a potential tumor suppressor gene in colorectal cancer[J].Oncogene,2004,23(2):395-402. 9 Yang WT,Zheng PS.Kruppel-like factor 4 functions as a tumor suppressor in cervical carcinoma[J].Cancer,2012,118(15):3691-3702. 10 Shie JL,Chen ZY,Fu M,et al.Gut-enriched kruppel-like factor represses cyclin d1 promoter activity through sp1 motif[J].Nucleic Acids Res,2000,28(15):2969-2976. 11 Ma Y,Wu L,Liu X,et al.Klf4 inhibits colorectal cancer cell proliferation dependent on NDRG2 signaling[J].Oncol Rep,2017,38(2):975-984. 12 Fang XM,Liu B,Liu YB,et al.Acetylbritannilactone suppresses growth via upregulation of kruppel-like transcription factor 4 expression in ht-29 colorectal cancer cells[J].Oncol Rep,2011,26(5):1181-1187. 13 Xiong X,Schober M,Tassone E,et al.Klf4,a gene regulating prostate stem cell homeostasis,is a barrier to malignant progression and predictor of good prognosis in prostate cancer[J].Cell Rep,2018,25(11):3006-3020. 14 Hsieh MH,Chen YT,Chen YT,et al.Parp1 controls klf4-mediated telomerase expression in stem cells and cancer cells[J].Nucleic Acids Res,2017,45(18):10492-10503. 15 Hirashima K,Yue F,Kobayashi M,et al.Cell biological profiling of reprogrammed cancer stem cell-like colon cancer cells maintained in culture[J].Cell Tissue Res,2019,375(3):697-707. 16 Leng Z,Tao K,Xia Q,et al.Kruppel-like factor 4 acts as an oncogene in colon cancer stem cell-enriched spheroid cells[J].PLoS One,2013,8(2):e56082. 17 Ishida R,Koyanagi-Aoi M,Oshima N,et al.The tissue-reconstructing ability of colon cscs is enhanced by fk506 and suppressed by gsk3 inhibition[J].Mol Cancer Res,2017,15(10):1455-1466. 18 Jia Y,Zhou J,Luo X,et al.Klf4 overcomes tamoxifen resistance by suppressing mapk signaling pathway and predicts good prognosis in breast cancer[J].Cell Signal,2018,42:165-175. 19 Li X,Zhao Z,Yi S,et al.Nuclear klf4 accumulation is associated with cetuximab drug-resistance and predicts poor prognosis of nasopharyngeal carcinoma[J].J Transl Med,2018,16(1):183. 20 Yadav SS,Kumar M,Varshney A,et al.Klf4 sensitizes the colon cancer cell hct-15 to cisplatin by altering the expression of hmgb1 and htert[J].Life Sci,2019,220:169-176. 21 Tiwari N,Meyer-Schaller N,Arnold P,et al.Klf4 is a transcriptional regulator of genes critical for emt,including jnk1(mapk8)[J].PLoS One,2013,8(2):e57329. 22 Zeng Z,Li Y,Pan Y,et al.Cancer-derived exosomal mir-25-3p promotes pre-metastatic niche formation by inducing vascular permeability and angiogenesis[J].Nat Commun,2018,9(1):5395. 23 van Es JH,Barker N,Clevers H.You wnt some,you lose some:oncogenes in the wnt signaling pathway[J].Curr Opin Genet Dev,2003,13(1):28-33. 24 Zhang W,Chen X,Kato Y,et al.Novel cross talk of kruppel-like factor 4 and beta-catenin regulates normal intestinal homeostasis and tumor repression[J].Mol Cell Biol,2006,26(6):2055-2064. 25 Evans PM,Chen X,Zhang W,et al.Klf4 interacts with beta-catenin/tcf4 and blocks p300/cbp recruitment by beta-catenin[J].Mol Cell Biol,2010,30(2):372-381. 26 Pellegrinet L,Rodilla V,Liu Z,et al.Dll1-and dll4-mediated notch signaling are required for homeostasis of intestinal stem cells[J].Gastroenterology,2011,140(4):1230-1240. 27 Ghaleb AM,Aggarwal G,Bialkowska AB,et al.Notch inhibits expression of the kruppel-like factor 4 tumor suppressor in the intestinal epithelium[J].Mol Cancer Res,2008,6(12):1920-1927. 28 Zheng H,Pritchard DM,Yang X,et al.Klf4 gene expression is inhibited by the notch signaling pathway that controls goblet cell differentiation in mouse gastrointestinal tract[J].Am J Physiol Gastrointest Liver Physiol,2009,296(3):490-498. 29 Miyamoto S,Nakanishi M,Rosenberg DW.Suppression of colon carcinogenesis by targeting notch signaling[J].Carcinogenesis,2013,34(10):2415-2423. 30 Soleimani A,Pashirzad M,Avan A,et al.Role of the transforming growth factor-beta signaling pathway in the pathogenesis of colorectal cancer[J].J Cell Biochem,2019,120(6):8899-8907. 31 Bellone G,Gramigni C,Vizio B,et al.Abnormal expression of endoglin and its receptor complex(tgf-beta1 and tgf-beta receptor ii)as early angiogenic switch indicator in premalignant lesions of the colon mucosa[J].Int J Oncol,2010,37(5):1153-1165. 32 Tiwari A,Swamynathan S,Alexander N,et al.Klf4 regulates corneal epithelial cell cycle progression by suppressing canonical tgf-beta signaling and upregulating cdk inhibitors p16 and p27[J].Invest Ophthalmol Vis Sci,2019,60(2):731-740. 33 Lin L,Han Q,Xiong Y,et al.Krupple-like-factor 4 attenuates lung fibrosis via inhibiting epithelial-mesenchymal transition[J].Sci Rep,2017,7(1):15847. 34 De Simone V,Bevivino G,Sedda S,et al.Smad7 knockdown activates protein kinase rna-associated eif2alpha pathway leading to colon cancer cell death[J].Cell Death Dis,2017,8(3):e2681. 35 Li XM,Kim SJ,Hong DK,et al.Klf4 suppresses the tumor activity of cutaneous squamous cell carcinoma(scc)cells via the regulation of smad signaling and sox2 expression[J].Biochem Biophys Res Commun,2019,516(4):1110-1115. 36 Geiman DE,Ton-That H,Johnson JM,et al.Transactivation and growth suppression by the gut-enriched kruppel-like factor(kruppel-like factor 4)are dependent on acidic amino acid residues and protein-protein interaction[J].Nucleic Acids Res,2000,28(5):1106-1113. 37 Zheng J,Liu Y,Qiao Y,et al.Mir-103 promotes proliferation and metastasis by targeting klf4 in gastric cancer[J].Int J Mol Sci,2017,18(5):910. 38 Xiao H,Li H,Yu G,et al.Microrna-10b promotes migration and invasion through klf4 and hoxd10 in human bladder cancer[J].Oncol Rep,2014,31(4):1832-1838. 39 Li Q,Gao Y,Jia Z,et al.Dysregulated kruppel-like factor 4 and vitamin d receptor signaling contribute to progression of hepatocellular carcinoma[J].Gastroenterology,2012,143(3):799-810. 40 He H,Li S,Hong Y,et al.Kruppel-like factor 4 promotes esophageal squamous cell carcinoma differentiation by up-regulating keratin 13 expression[J].J Biol Chem,2015,290(21):13567-13577. 41 Yu F,Li J,Chen H,et al.Kruppel-like factor 4(klf4)is required for maintenance of breast cancer stem cells and for cell migration and invasion[J].Oncogene,2011,30(18):2161-2172. 42 Riverso M,Montagnani V,Stecca B.Klf4 is regulated by ras/raf/mek/erk signaling through e2f1 and promotes melanoma cell growth[J].Oncogene,2017,36(23):3322-3333. |