Abstract
Whelming evidence has demonstrated that WW domain containing E3 ubiquitin protein ligase 1 (WWP1) participates in a wide variety of biological processes and is tightly related to the initiation and progression of many tumors. Currently, although mounting evidence supports a role of WWP1 in tumor promotion and tumorigenesis, the potential roles of WWP1 and its biological functions in gastric carcinoma are not fully understood. Here, we found that WWP1 messenger RNA (mRNA) and protein were highly expressed in gastric carcinoma tissues and cells. High WWP1 mRNA and protein levels were tightly related to differentiation status, TNM stage, invasive depth, lymph node metastasis, and poor prognosis in gastric carcinoma. Furthermore, WWP1 siRNA significantly decreased WWP1 protein level in MKN-45 and AGS cells; meanwhile, WWP1 depletion markedly inhibited tumor proliferation in vitro and in vivo, arrested cell cycle at G0/G1 phase, and induced cell apoptosis in MKN-45 and AGS cells. Most notably, WWP1 downregulation both inactivated PTEN-Akt signaling pathway in MKN-45 and AGS cells. Taken altogether, our findings suggest that WWP1 acts as an oncogenic factor and should be considered as a novel interfering molecular target for gastric carcinoma.
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References
Gomceli I, Demiriz B, Tez M. Gastric carcinogenesis. World J Gastroenterol. 2012;18(37):5164–70.
Parkin DM, Bray F, Ferlay J, Pisani P. Global cancer statistics, 2002. CA Cancer J Clin. 2005;55(2):74–108.
Guggenheim DE, Shah MA. Gastric cancer epidemiology and risk factors. J Surg Oncol. 2013;107(3):230–6.
Roukos DH. Targeting gastric cancer with trastuzumab: new clinical practice and innovative developments to overcome resistance. Ann Surg Oncol. 2010;17(1):14–7.
Verdecchia A, Corazziari I, Gatta G, Lisi D, Faivre J, Forman D. Explaining gastric cancer survival differences among European countries. Int J Cancer. 2004;109(5):737–41.
Kaneko S, Yoshimura T. Time trend analysis of gastric cancer incidence in Japan by histological types, 1975-1989. Br J Cancer. 2001;84(3):400–5.
Malbert-Colas L, Fay M, Cluzeaud F, Blot-Chabaud M, Farman N, Dhermy D, et al. Differential expression and localisation of WWP1, a Nedd4-like protein, in epithelia. Pflugers Arch. 2003;447(1):35–43.
Porkka K, Saramaki O, Tanner M, Visakorpi T. Amplification and overexpression of Elongin C gene discovered in prostate cancer by cDNA microarrays. Lab Invest. 2002;82(5):629–37.
Chen C, Zhou Z, Ross JS, Zhou W, Dong JT. The amplified WWP1 gene is a potential molecular target in breast cancer. Int J Cancer. 2007;121(1):80–7.
Chen C, Sun X, Guo P, Dong XY, Sethi P, Zhou W, et al. Ubiquitin E3 ligase WWP1 as an oncogenic factor in human prostate cancer. Oncogene. 2007;26(16):2386–94.
Balleine RL, Fejzo MS, Sathasivam P, Basset P, Clarke CL, Byrne JA. The hD52 (TPD52) gene is a candidate target gene for events resulting in increased 8q21 copy number in human breast carcinoma. Genes Chromosomes Cancer. 2000;29(1):48–57.
Verdecia MA, Joazeiro CA, Wells NJ, Ferrer JL, Bowman ME, Hunter T, et al. Conformational flexibility underlies ubiquitin ligation mediated by the WWP1 HECT domain E3 ligase. Mol Cell. 2003;11(1):249–59.
Huibregtse JM, Scheffner M, Beaudenon S, Howley PM. A family of proteins structurally and functionally related to the E6-AP ubiquitin-protein ligase. Proc Natl Acad Sci U S A. 1995;92(11):5249.
Bernassola F, Karin M, Ciechanover A, Melino G. The HECT family of E3 ubiquitin ligases: multiple players in cancer development. Cancer Cell. 2008;14(1):10–21.
Zhi X, Chen C. WWP1: a versatile ubiquitin E3 ligase in signaling and diseases. Cell Mol Life Sci. 2012;69(9):1425–34.
Yeung B, Ho KC, Yang X. WWP1 E3 ligase targets LATS1 for ubiquitin-mediated degradation in breast cancer cells. PLoS One. 2013;8(4):e61027.
Cao X, Xue L, Han L, Ma L, Chen T, Tong T. WW domain-containing E3 ubiquitin protein ligase 1 (WWP1) delays cellular senescence by promoting p27(Kip1) degradation in human diploid fibroblasts. J Biol Chem. 2011;286(38):33447–56.
Komuro A, Imamura T, Saitoh M, Yoshida Y, Yamori T, Miyazono K, et al. Negative regulation of transforming growth factor-beta (TGF-beta) signaling by WW domain-containing protein 1 (WWP1). Oncogene. 2004;23(41):6914–23.
Cheng Q, Cao X, Yuan F, Li G, Tong T. Knockdown of WWP1 inhibits growth and induces apoptosis in hepatoma carcinoma cells through the activation of caspase3 and p53. Biochem Biophys Res Commun. 2014;448(3):248–54.
Lin JH, Hsieh SC, Chen JN, Tsai MH, Chang CC. WWP1 gene is a potential molecular target of human oral cancer. Oral Surg Oral Med Oral Pathol Oral Radiol. 2013;116(2):221–31.
Hauber HP, Manoukian JJ, Nguyen LH, Sobol SE, Levitt RC, Holroyd KJ, et al. Increased expression of interleukin-9, interleukin-9 receptor, and the calcium-activated chloride channel hCLCA1 in the upper airways of patients with cystic fibrosis. Laryngoscope. 2003;113(6):1037–42.
Liu Y, Li K, Ren Z, Li S, Zhang H, Fan Q. Clinical implication of elevated human cervical cancer oncogene-1 expression in esophageal squamous cell carcinoma. J Histochem Cytochem. 2012;60(7):512–20.
Suehara Y, Kondo T, Fujii K, Hasegawa T, Kawai A, Seki K, et al. Proteomic signatures corresponding to histological classification and grading of soft-tissue sarcomas. Proteomics. 2006;6(15):4402–9.
Huang CY, Chen YM, Zhao JJ, Chen YB, Jiang SS, Yan SM, et al. Decreased expression of transcription elongation factor A-like 7 is associated with gastric adenocarcinoma prognosis. PLoS One. 2013;8(1):e54671.
Liu D, Zhang L, Shen Z, Tan F, Hu Y, Yu J, et al. Increased levels of SLP-2 correlate with poor prognosis in gastric cancer. Gastric Cancer. 2013;16(4):498–504.
Liu HT, Wang N, Wang X, Li SL. Overexpression of Pim-1 is associated with poor prognosis in patients with esophageal squamous cell carcinoma. J Surg Oncol. 2010;102(6):683–8.
Wang L, Zhang Z, Wang Y, Zhang R, Chopp M. Treatment of stroke with erythropoietin enhances neurogenesis and angiogenesis and improves neurological function in rats. Stroke. 2004;35(7):1732–7.
Livak KJ, Schmittgen TD. Analysis of relative gene expression data using real-time quantitative PCR and the 2(-Delta Delta C(T)) Method. Methods. 2001;25(4):402–8.
Lu Z, Liu H, Xue L, Xu P, Gong T, Hou G. An activated Notch1 signaling pathway inhibits cell proliferation and induces apoptosis in human esophageal squamous cell carcinoma cell line EC9706. Int J Oncol. 2008;32(3):643–51.
Yan L, Li S, Xu C, Zhao X, Hao B, Li H, et al. Target protein for Xklp2 (TPX2), a microtubule-related protein, contributes to malignant phenotype in bladder carcinoma. Tumour Biol. 2013;34(6):4089–100.
Liu J, Wan L, Liu P, Inuzuka H, Wang Z, Wei W. SCF(beta-TRCP)-mediated degradation of NEDD4 inhibits tumorigenesis through modulating the PTEN/Akt signaling pathway. Oncotarget. 2014;5(4):1026–37.
Wei Z, Cui L, Mei Z, Liu M. Zhang D: miR-181a mediates metabolic shift in colon cancer cells via the PTEN/AKT pathway. FEBS Lett. 2014;588(9):1773–9.
Liao C, Chen W, Fan X, Jiang X, Qiu L, Chen C, et al. MicroRNA-200c inhibits apoptosis in pituitary adenoma cells by targeting the PTEN/Akt signaling pathway. Oncol Res. 2014;21(3):129–36.
Li Y, Zhou Z, Chen C. WW domain-containing E3 ubiquitin protein ligase 1 targets p63 transcription factor for ubiquitin-mediated proteasomal degradation and regulates apoptosis. Cell Death Differ. 2008;15(12):1941–51.
Nguyen Huu NS, Ryder WD, Zeps N, Flasza M, Chiu M, Hanby AM, et al. Tumour-promoting activity of altered WWP1 expression in breast cancer and its utility as a prognostic indicator. J Pathol. 2008;216(1):93–102.
Chung CH, Parker JS, Ely K, Carter J, Yi Y, Murphy BA, et al. Gene expression profiles identify epithelial-to-mesenchymal transition and activation of nuclear factor-kappaB signaling as characteristics of a high-risk head and neck squamous cell carcinoma. Cancer Res. 2006;66(16):8210–8.
Peschiaroli A, Scialpi F, Bernassola F, El Sherbini el S, Melino G. The E3 ubiquitin ligase WWP1 regulates DeltaNp63-dependent transcription through Lys63 linkages. Biochem Biophys Res Commun. 2010;402(2):425–30.
Seo SR, Lallemand F, Ferrand N, Pessah M, L’Hoste S, Camonis J, et al. The novel E3 ubiquitin ligase Tiul1 associates with TGIF to target Smad2 for degradation. EMBO J. 2004;23(19):3780–92.
Li Y, Zhou Z, Alimandi M, Chen C. WW domain containing E3 ubiquitin protein ligase 1 targets the full-length ErbB4 for ubiquitin-mediated degradation in breast cancer. Oncogene. 2009;28(33):2948–58.
Feng SM, Muraoka-Cook RS, Hunter D, Sandahl MA, Caskey LS, Miyazawa K, et al. The E3 ubiquitin ligase WWP1 selectively targets HER4 and its proteolytically derived signaling isoforms for degradation. Mol Cell Biol. 2009;29(3):892–906.
Paez J, Sellers WR. PI3K/PTEN/AKT pathway. A critical mediator of oncogenic signaling. Cancer Treat Res. 2003;115:145–67.
Cheng GZ, Park S, Shu S, He L, Kong W, Zhang W, et al. Advances of AKT pathway in human oncogenesis and as a target for anti-cancer drug discovery. Curr Cancer Drug Targets. 2008;8(1):2–6.
Chen C, Matesic LE. The Nedd4-like family of E3 ubiquitin ligases and cancer. Cancer Metastasis Rev. 2007;26(3–4):587–604.
Trotman LC, Wang X, Alimonti A, Chen Z, Teruya-Feldstein J, Yang H, et al. Ubiquitination regulates PTEN nuclear import and tumor suppression. Cell. 2007;128(1):141–56.
Wu W, Wang X, Zhang W, Reed W, Samet JM, Whang YE, et al. Zinc-induced PTEN protein degradation through the proteasome pathway in human airway epithelial cells. J Biol Chem. 2003;278(30):28258–63.
Wang X, Trotman LC, Koppie T, Alimonti A, Chen Z, Gao Z, et al. NEDD4-1 is a proto-oncogenic ubiquitin ligase for PTEN. Cell. 2007;128(1):129–39.
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Zhang, L., Wu, Z., Ma, Z. et al. WWP1 as a potential tumor oncogene regulates PTEN-Akt signaling pathway in human gastric carcinoma. Tumor Biol. 36, 787–798 (2015). https://doi.org/10.1007/s13277-014-2696-0
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DOI: https://doi.org/10.1007/s13277-014-2696-0