Increasing expression of serine protease matriptase in ovarian tumors: tissue microarray analysis of immunostaining score with clinicopathological parameters.
Matriptase is a type II transmembrane serine protease expressed by cells of surface epithelial origin, including epithelial ovarian tumor cells. Matriptase cleaves and activates proteins implicated in the progression of cancer and represents a potential prognostic and therapeutic target. The aim of this study was to examine the expression of matriptase in ovarian tumors and to assign clinicopathological correlations. Immunohistochemical analysis of matriptase was performed in tissue microarrays of 164 ovarian neoplasms including 84 serous adenocarcinomas, 23 mucinous adenocarcinomas, 10 endometrioid adenocarcinomas, six yolk sac tumors, 12 clear cell carcinomas, six dysgerminomas, eight granulosa cell tumors, four transitional cell carcinomas, five fibromas, and six Brenner tumors. All ovarian tumors except the fibromas and Brenner tumors showed significant expression of matriptase. The matriptase scores were significantly higher in the tumors than in their nontumor counterparts (304+/-26 for serous adenocarcinoma; 361+/-28 for mucinous adenocarcinoma; 254+/-17 for endometrioid adenocarcinoma; 205+/-19 for yolk sac tumor; 162+/-16 for clear cell carcinoma; 109+/-11 for dysgerminoma; 105+/-9 for granulosa cell tumor; and 226+/-18 for transitional cell carcinoma). Matriptase scores in serous adenocarcinoma were correlated with TNM stage and FIGO stage. Our findings demonstrate for the first time that matriptase is overexpressed in many malignant ovarian tumors. It may be a novel biomarker for diagnosis and treatment of malignant ovarian tumors.
Jin
Jong-Shiaw
JS
Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC. jsjin@ndmctsgh.edu.tw
Hsieh
Dar-Shih
DS
Loh
Shih-Hurng
SH
Chen
Ann
A
Yao
Chen-Wen
CW
Yen
Chung-Yang
CY
D018262:Adenocarcinoma, Clear Cell / Q000201:enzymology / Q000473:pathology; D000328:Adult; D001948:Brenner Tumor / Q000201:enzymology / Q000473:pathology; D018269:Carcinoma, Endometrioid / Q000201:enzymology / Q000473:pathology; D002295:Carcinoma, Transitional Cell / Q000201:enzymology / Q000473:pathology; D002648:Child; D018282:Cystadenocarcinoma, Mucinous / Q000201:enzymology / Q000473:pathology; D018284:Cystadenocarcinoma, Serous / Q000201:enzymology / Q000473:pathology; D004407:Dysgerminoma / Q000201:enzymology / Q000473:pathology; D018240:Endodermal Sinus Tumor / Q000201:enzymology / Q000473:pathology; D005260:Female; D005350:Fibroma / Q000201:enzymology / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000201:enzymology / Q000473:pathology*; D012697:Serine Endopeptidases / Q000096:biosynthesis*; D046888:Tissue Array Analysis / Q000379:methods
D012697:Serine Endopeptidases; C485596:ST14 protein, human