Effect of 5-FU on the expression of SHP2 gene in colorectal cancer cells RKO

WANG Jie; HUANG Yan; ZHANG Chuan; MA Xingyuan; CHANG Wenjun; LU Yiming

doi:10.3969/j.issn.1006-0111.2017.06.008

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Objective To investigate the effect of 5-FU on the expression of SHP2 gene in colorectal cancer cells RKO. Methods The human colorectal cancer cell line RKO of logarithmic growth phase was cultured 48 h with 5-FU. The expression of SHP2 was observed by immunofluorescence and Western blotting; siSHP2 which specifically inhibits the expression of SHP2 was transfected into RKO cells and cultured 48 h with 5-FU. The cell absorbance (A) values were measured with CCK8 and apoptosis was determined by flow cytometry. The sensitivity of RKO to 5-FU and the effect of 5-FU on apoptosis of RKO cells were observed. Results The expression of nuclear protein of SHP2 was improved remarkably after colorectal cancer cell RKO was cultured 48 h with 5-FU. The sensitivity of RKO cells to 5-FU and the cell apoptosis rate induced by 5-FU were decreased after siSHP2 transfection. Conclusion 5-FU exerts anti-cancer activity possibly due to its promoting the apoptosis of RKO cells by influencing the expression of SHP2.

Effect of 5-FU on the expression of SHP2 gene in colorectal cancer cells RKO

1. Department of Biochemistry Pharmacy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China

2. College of Biological Engineering, East China University of Science and Technology, Shanghai 200237, China

3. Department of Environmental Hygiene, School of Tropical Medicine and Public Health, Second Military Medical University, Shanghai 200433, China

Received Date: 2017-06-19

Rev Recd Date: 2017-07-10

Key words:

Abstract: Objective To investigate the effect of 5-FU on the expression of SHP2 gene in colorectal cancer cells RKO. Methods The human colorectal cancer cell line RKO of logarithmic growth phase was cultured 48 h with 5-FU. The expression of SHP2 was observed by immunofluorescence and Western blotting; siSHP2 which specifically inhibits the expression of SHP2 was transfected into RKO cells and cultured 48 h with 5-FU. The cell absorbance (A) values were measured with CCK8 and apoptosis was determined by flow cytometry. The sensitivity of RKO to 5-FU and the effect of 5-FU on apoptosis of RKO cells were observed. Results The expression of nuclear protein of SHP2 was improved remarkably after colorectal cancer cell RKO was cultured 48 h with 5-FU. The sensitivity of RKO cells to 5-FU and the cell apoptosis rate induced by 5-FU were decreased after siSHP2 transfection. Conclusion 5-FU exerts anti-cancer activity possibly due to its promoting the apoptosis of RKO cells by influencing the expression of SHP2.

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Reference (19)

[1]	Hof P, Pluskey S, Dhe-Paganon S, et al. Crystal structure of the tyrosine phosphatase SHP-2[J]. Cell, 1998, 92(4):441-450.
[2]	Neel B G, Gu H, Pao L. The ‘Shp’ ing news:SH2 domain-containing tyrosine phosphatases in cell signaling[J]. Trends Biochem Sci, 2003, 28(6):284-293.
[3]	Chang W, Gao X, Han Y, et al. Gene expression profiling-derived immunohistochemistry signature with high prognostic value in colorectal carcinoma[J]. Gut, 2014, 63(9):1457-1467.
[4]	罗虎, 周向东. SHP2及其在乳腺癌发生发展中的作用[J]. 生命的化学, 2010,30(6):833-837.
[5]	Tartaglia M, Mehle E L, Goldberg R, et al. Mutations in PTPN11, encoding the protein tyrosine phosphatase SHP-2, cause Noonan syndrome[J]. Nat Genet, 2001, 29(4):465-468.
[6]	Higuchi M, Tsutsumi R, Higashi H, et al. Conditional gene silencing utilizing the lac repressor reveals a role of SHP-2 in cagA-positive Helicobacter pylori pathogenicity[J]. Cancer Sci, 2004, 95(5):442-447.
[7]	Zhou X, Coad J, Ducatman B, et al. SHP2 is up-regulated in breast cancer cells and in infiltrating ductal carcinoma of the breast, implying its involvement in breast oncogenesis[J]. Histopathology, 2008, 53(4):389-402.
[8]	唐春兰, 周向东, 杨和平等. SHP2在非小细胞肺癌中的表达及意义[J]. 中国肺癌杂志, 2010, 13(2):98-101.
[9]	Martinelli S, Carta C, Flex E, et al. Activating PTPN11 mutations play a minor role in pediatric and adult solid tumors[J]. Cancer Genet Cytogenet, 2006, 166(2):124-129.
[10]	Bentires-Alj M, Paez JG, David FS, et al. Activating mutations of the noonan syndrome-associated SHP2/PTPN11 gene in human solid tumors and adult acute myelogenous leukemia[J]. Cancer Res, 2004, 64(24):8816-8820.
[11]	Sartore-Bianchi A, Siena S. Plasticity of resistance and sensitivity to anti-epidermal growth factor receptor inhibitors in metastatic colorectal cancer[J]. Handb Exp Pharmacol,2017,DOI:10.1007/164_2017_19.
[12]	Monteleone G, Franchi L, Fina D, et al. Silencing of SH-PTP2 defines a crucial role in the inactivation of epidermal growth factor receptor by 5-aminosalicylic acid in colon cancer cells[J]. Cell Death Differ, 2006, 13(2):202-211.
[13]	Dai Y, Jiao H, Teng G, et al. Embelin reduces colitis-associated tumorigenesis through limiting IL-6/STAT3 signaling[J]. Mol Cancer Ther, 2014, 13(5):1206-1216.
[14]	Chu EC, Chai J, Tarnawski AS. NSAIDs activate PTEN and other phosphatases in human colon cancer cells:novel mechanism for chemopreventive action of NSAIDs[J]. Biochem Biophys Res Commun, 2004, 320(3):875-879.
[15]	Östman A, Hellberg C, Böhmer FD. Protein-tyrosine phosphatases and cancer[J]. Nat Rev Cancer, 2006, 6(4):307-320.
[16]	Li S, Hsu DD, Wang H, et al. Dual faces of SH2-containing protein-tyrosine phosphatase Shp2/PTPN11 in tumorigenesis[J]. Front Med, 2012, 6(3):275-279.
[17]	Jakob S, Schroeder P, Lukosz M, et al. Nuclear protein tyrosine phosphatase Shp-2 is one important negative regulator of nuclear export of telomerase reverse transcriptase[J]. J Biol Chem, 2008, 283(48):33155-33161.
[18]	Ran H, Kong S, Zhang S, et al. Nuclear Shp2 directs normal embryo implantation via facilitating the ERα tyrosine phosphorylation by the Src kinase[J]. Proc Natl Acad Sci USA, 2017, 114(18):4816-4821.
[19]	Yuan L, Yu WM, Yuan Z, et al. Role of SHP-2 tyrosine phosphatase in the DNA damage-induced cell death response[J]. J Biol Chem,2003,278(17):15208-15216.

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Effect of 5-FU on the expression of SHP2 gene in colorectal cancer cells RKO

doi: 10.3969/j.issn.1006-0111.2017.06.008

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