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结果: 34例胰腺癌标本中有26例(76.5%)HIF-1α, 28例(82.4%)P-Gp, 30例(88.2%)Bcl-XL, 26例(76.5%)Bax表达阳性. HIF-1α和P-Gp、Bcl-XL、Bax蛋白表达呈正相关(r = 0.471, P = 0.005; r = 0.443, P = 0.009; r = 0.510, P = 0.002).
Expression and correlation of Hypoxia inducible Factor 1α and drug-resistance-correlated proteins in human pancreatic carcinoma
Jing Sun, Jun Cao, Tao Jiang, Fang Zhang, Chen Huang, Zheng-Jun Qiu
Jing Sun, Jun Cao, Tao Jiang, Fang Zhang, Chen Huang, Zheng-Jun Qiu, Department of General Surgery, The First Affiliated People's Hospital of Shanghai Jiaotong University, Shanghai 200080, China
Supported by: the Scientific Development Foundation of Shanghai Health Bureau, No. 024012.
Correspondence to: Dr. Zheng-Jun Qiu, Department of General Surgery, The First Affiliated People's Hospital of Shanghai Jiaotong University, 100 Haining Road, Shanghai 200080, China. qiuwryb@online.sh.cn
Received: April 16, 2007 Revised: August 6, 2007 Accepted: August 28, 2007 Published online: August 18, 2007
AIM: To investigate the expression of Hypoxia inducible Factor 1α(HIF-1α) and the drug-resistance-correlated indexes P-glycoprotein (P-Gp), Bcl-XL and Bax, and the relationship between HIF-1α and resistance to chemotherapy in human pancreatic carcinoma.
METHODS: Protein expression of HIF-1α, P-Gp, Bcl-XL and Bax in pancreatic tissues from 34 radically resected specimens of pancreatic carcinoma was detected by immunohistochemical staining.
RESULTS: The protein expression rates of HIF-1α, P-Gp, Bcl-XL and Bax in pancreatic carcinoma were 26/34 (76.5%), 28/34 (82.4%), 30/34 (88.2%) and 26/34 (76.5%), respectively. There were positive correlations between the positivity rates of HIF-1α and P-Gp, Bcl-XL and Bax (r = 0.471, P = 0.005; r = 0.443, P = 0.009; r = 0.510, P = 0.002).
CONCLUSION: HIF-1α, P-Gp, Bcl-XL and Bax were over-expressed in human pancreatic carcinoma tissues. A positive correlation was determined between the expression rates of HIF-1α and P-Gp, Bcl-XL and Bax. HIF-1α may have a significant role in resistance to chemotherapy in pancreatic carcinoma via up-regulation of the expression of P-Gp, Bcl-XL and Bax.
Citation: Sun J, Cao J, Jiang T, Zhang F, Huang C, Qiu ZJ. Expression and correlation of Hypoxia inducible Factor 1α and drug-resistance-correlated proteins in human pancreatic carcinoma. Shijie Huaren Xiaohua Zazhi 2007; 15(23): 2503-2506
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