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Ovarian Kaleidoscope Database (OKdb)

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Kallikrein 11 OKDB#: 2467
 Symbols: KLK11 Species: human
 Synonyms: PROTEASE, SERINE, 20, PRSS20|TRYPSIN-LIKE SERINE PROTEASE, TLSP  Locus:


For retrieval of Nucleotide and Amino Acid sequences please go to: OMIM Entrez Gene
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General Comment NCBI Summary: Kallikreins are a subgroup of serine proteases having diverse physiological functions. Growing evidence suggests that many kallikreins are implicated in carcinogenesis and some have potential as novel cancer and other disease biomarkers. This gene is one of the fifteen kallikrein subfamily members located in a cluster on chromosome 19. Alternate splicing of this gene results in two transcript variants encoding two different isoforms which are differentially expressed.
General function
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Cellular localization
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Ovarian function
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Expression regulated by
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Ovarian localization Ovarian tumor
Comment Human kallikrein gene 11 (KLK11) mRNA overexpression is associated with poor prognosis in patients with epithelial ovarian cancer Shigemasa K, et al . PURPOSE: The purpose of this study was to examine expression levels of the human tissue kallikrein 11 gene (KLK11) in epithelial ovarian tumors and to identify the relationship between KLK11 expression and patient survival. EXPERIMENTAL DESIGN: KLK11 mRNA expression was examined by semiquantitative PCR in 64 epithelial ovarian tumors (7 adenomas, 6 low malignant potential tumors, and 51 adenocarcinomas) and in 10 normal ovaries. Semiquantitative PCR results were correlated with clinicopathologic variables and overall survival. cDNA from human normal tissues and tumor tissues was also analyzed. RESULTS: KLK11 mRNA expression was detected in various human cancer tissues including breast, lung, colon, prostate, pancreas, and ovarian carcinoma. The mean value of relative KLK11 expression ratio was significantly higher in ovarian tumor samples than in normal ovary samples (compared with normal samples: adenoma, P = 0.0006; low malignant potential tumor, P = 0.0049; and carcinoma, P < 0.0001). No statistically significant associations between KLK11 mRNA expression level and clinical stage, histological type, or histological grade were observed. The log-rank test showed that high KLK11 mRNA expression and advanced clinical stage significantly correlated with poor patient survival (P = 0.0185 and P = 0.0043, respectively). High KLK11 mRNA expression and clinical stage remained significantly associated with overall survival (P = 0.0225 and P = 0.0202, respectively) after multivariate analysis. CONCLUSIONS: KLK11 expression may play an important role in ovarian cancer development and act as an independent prognostic marker in ovarian cancer patients. Diamandis EP,et al reported that human kallikrein 11 is an indicator of favorable prognosis in ovarian cancer patients.
Follicle stages
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Phenotypes
Mutations 0 mutations
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Phenotypes and GWAS show phenotypes and GWAS
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created: May 2, 2004, 8:34 a.m. by: hsueh   email:
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last update: Sept. 5, 2004, 7:20 a.m. by: system    email:



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