title: Expression of RECK gene and MMP-9 in hilar cholangiocarcinoma and its clinical significance.
abstract: In order to study the expression of transformation suppressor gene RECK and MMP-9 in hilar cholangiocarcinomas and its clinical significance, and explore the roles of RECK gene in metastasis and invasion of hilar cholangiocarcinoma, the expression levels of RECK, and MMP-9 mRNA were detected by using reverse transcription-polymerase reaction in 42 paraffin-embedded samples of hilar cholangiocarcinomas and 10 samples of benign bile duct diseases. The results showed that in hilar cholangiocarcinoma tissues, the expression of RECK gene was 0.235 +/- 0.062, significantly lower than in normal bile duct tissues (0.533 +/- 0.024, P < 0.05). In hilar cholangiocarcinoma tissues, the expression of MMP-9 (0.528 +/- 0.039) was significantly higher than in the normal tissues (0.311 +/- 0.032, P < 0.05). The expression of RECK gene was closely related to the intrahepatic and surrounding organs invasion (P < 0.05). It was concluded that RECK gene could inhibit the expression of MMP-9 in hilar cholangiocarcinomas and closely correlated with the biological behaviors. The abnormal expression of RECK gene might be one of the molecular mechanisms of hilar cholangiocarcinoma metastasis.
authors.affiliation: Department of General Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
authors.forename: Yiqing
authors.initials: Y
authors.lastname: Li
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Qichang
authors.initials: Q
authors.lastname: Zheng
mesh_terms: D000328:Adult; D000368:Aged; D001650:Bile Duct Neoplasms / Q000235:genetics* / Q000378:metabolism; D001653:Bile Ducts, Intrahepatic / Q000378:metabolism*; D018281:Cholangiocarcinoma / Q000235:genetics* / Q000378:metabolism; D005260:Female; D058851:GPI-Linked Proteins; D006801:Humans; D008297:Male; D020780:Matrix Metalloproteinase 9 / Q000235:genetics / Q000378:metabolism*; D008562:Membrane Glycoproteins / Q000235:genetics / Q000378:metabolism*; D008875:Middle Aged; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D058851:GPI-Linked Proteins; D008562:Membrane Glycoproteins; C115460:RECK protein, human; D012333:RNA, Messenger; D020780:Matrix Metalloproteinase 9