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Expression And Significance Of IGF2BP3 In Ovarian Carcinoma Of Clear Cell Subtype

Posted on:2011-02-15Degree:MasterType:Thesis
Country:ChinaCandidate:C M GuoFull Text:PDF
GTID:2144360305475707Subject:Obstetrics and gynecology
Abstract/Summary:PDF Full Text Request
Insulin-like growth factor2 mRNA bingding protein3(IGF2BP3 also Known as IGFIImRNA-Binding Protein3,IMP3or KH-domain containing protein,koc) is an oncofetal RNA-binding protein that regulates targets such as insulin-like growth factor-2(IGF-2)and ACTB (beta-actin).The insulin-like growth factor mRNA-binding protein familyComprises three proteins(IGF2BP 1-3), which regulate mRNA Transport,translation,and turnover by binding the coding regions of Target mRNAs such as IGF2(insulin-like growth factor2),IGF2BP3 Expressed in embryonic tissues,muscle and placenta and adult brain and testis,In the distant normal tissue cancer could not be detected.IGF2BP3 in the cervical carcinoma in situ,endometrial cancer esophageal invasion of esophageal adenocarcinoma and highly abnormal hyperplasia, liver cancer, lung cell carcinoma, invasive breastcancer, colon cancer, cholangiocarcinoma, bile duct severe atypia hyperplasia and malignant thyroid tumors, renal cell carcinoma, testicular carcinoma in situ germ cell tumors, seminomas and non-seminoma, undifferentiated embryonal carcinoma and other malignant tumors with high expression.,Therefore,IGF2BP3 not for a variety of malignant tumors but a specific marker,contributes to cancer screening,diagnisis,and as a molecular marker of prognosis.IGF2BP3 account for 10% of all cases,and are mostly(80%)Diagnosed at stageâ… orâ…¡.women diagnosed with ovarian clear cellCarcinomas have a 5-year overall survival ranging from 88% in stageâ… to 33% in stageâ…¢.The high degree of malignancy of OCCC,with theTraditional platinum-based chemotherapy drug resistance,poor prognosisAnd the characteristics of prone retroperitoneal lymph node metastasis and Lung metastasis is the worst subtype of epithelial ovarian tumors.AlthoughIt is earlier for the diagnosis of OCCCof the majority,But the higher recurrence ates than other epithelial cancers, and the prognosis worse than serous carcinoma, often require comprehensive treatment. Despite improvements in technology gynecological surgery, and neoadjuvant chemotherapy/adjuvant therapy and achieved some progress,The overall survival rate of OCCC is still low. Although the OCCC has a strong invasive and poor clinical prognosis, but the current treatment options are still the same with other ovarian epithelial tumors OCCCshould adopt new treatment programs.In recent yeas, the progressOf gene therapy provides a new therapeutic approach for drug resistance to conventional chemotherapy in patients with OCCC.It is necessary to Clear OCCC related gene expression and its relationship with tumor outcome.At present, It is not reported about IGF2BP3 in Ovarian clear cell Carcinoma in domesitic and international.It was first used Immunohistochemistry IGF2BP3 in ovarian clear cell carcinoma andAnalyze its relation to clinical factors and prognosis. the study aimed to provide some evidence and molecular Basis of treatment for Ovarian clear Cell carcinoma.Objective:To study the expression and significance of IGF2BP3 In ovarian carcinoma of clear cell.Method:IGF2BP3 Protein expression was detected by immunohistochemistry from 44 patients undergoing complete resection for ovarian carcinoma of clear cell and 20 cases of contralateral normal ovarian tissue.The Protein expression level of IGF2BP3 was analysised with clinical factors and prognosis.Results:IGF2BP3 expression mainly localized in the cytoplasm of tumor cells in the endoscopic;It is were significantly differentfor the positive rate of IGF2BP3 expression inOCCC was 67%(29/44) higher than in normal ovarian0%(0/20). There was relationship betweenIGF2BP3 expression and clinical stage,it is not correlation in tumor size and patient age of OCCC pation.Conclusion:IGF2BP3 possibly as early diagnosis of ovarian clear cell carcinoma marker;Over-expression of IGF2BP3 protein may play important roles in occurrence and progression of OCCC.IGF2BP3 can be important diagnostic/therapeutic targets in OCCC.
Keywords/Search Tags:IGF2BP3, ovarian carcinoma of clear cell, immunohistochemistry
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