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Tomm34 is commonly expressed in epithelial ovarian cancer and associates with tumour type and high FIGO stage.

ABSTRACT: BACKGROUND:Increased activity of the chaperones Hsp70 and Hsp90 is a common feature of solid tumours. Translocase of the outer mitochondrial membrane 34 (Tomm34) is a cochaperone of both Hsp70 and Hsp90 that was found to be overexpressed in colorectal, hepatocellular, lung and breast carcinomas. The expression profile of Tomm34 in ovarian cancer has not been investigated. Therefore, the aim of the current study was to investigate the expression pattern of Tomm34 in ovarian carcinomas and analyse its correlation with clinico-pathological parameters. RESULTS:Epithelial ovarian cancers (140) were histologically classified based on their morphology and graded into two types comprising 5 histologic subgroups. Type I carcinomas comprise low grade serous (LGSC), clear cell (CCOC) and endometrioid (ENOC), type II comprises high grade serous carcinomas (HGSC) and solid, pseudoendometrioid, transitional carcinomas (SET). Tomm34 was more highly expressed in type II than type I carcinomas (p?

SUBMITTER: Muller P

PROVIDER: S-EPMC6436220 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Tomm34 is commonly expressed in epithelial ovarian cancer and associates with tumour type and high FIGO stage.

Muller Petr P Coates Philip J PJ Nenutil Rudolf R Trcka Filip F Hrstka Roman R Chovanec Josef J Brychtova Veronika V Vojtesek Borivoj B

Journal of ovarian research 20190327 1

<h4>Background</h4>Increased activity of the chaperones Hsp70 and Hsp90 is a common feature of solid tumours. Translocase of the outer mitochondrial membrane 34 (Tomm34) is a cochaperone of both Hsp70 and Hsp90 that was found to be overexpressed in colorectal, hepatocellular, lung and breast carcinomas. The expression profile of Tomm34 in ovarian cancer has not been investigated. Therefore, the aim of the current study was to investigate the expression pattern of Tomm34 in ovarian carcinomas and ...[more]

PMID: 30917858

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Project description:BackgroundThe addition of hyperthermic intraperitoneal chemotherapy (HIPEC) to interval cytoreductive surgery improves recurrence-free and overall survival in patients with FIGO stage III ovarian cancer who are ineligible for primary cytoreductive surgery. The effect of HIPEC remains undetermined in patients who are candidates for primary cytoreductive surgery.Primary objectiveThe primary objective is to evaluate the effect of HIPEC on overall survival in patients with FIGO stage III epithelial ovarian cancer who are treated with primary cytoreductive surgery resulting in no residual disease, or residual disease up to 2.5 mm in maximum dimension.Study hypothesisWe hypothesize that the addition of HIPEC to primary cytoreductive surgery improves overall survival in patients with primary FIGO stage III epithelial ovarian cancer.Trial designThis international, randomized, open-label, phase III trial will enroll 538 patients with newly diagnosed FIGO stage III epithelial ovarian cancer. Following complete or near-complete (residual disease ≤2.5 mm) primary cytoreduction, patients are randomly allocated (1:1) to receive HIPEC or no HIPEC. All patients will receive six courses of platinum-paclitaxel chemotherapy, and maintenance PARP-inhibitor or bevacizumab according to current guidelines.Major eligibility criteriaPatients with FIGO stage III primary epithelial ovarian, fallopian tube, or primary peritoneal cancer are eligible after complete or near-complete primary cytoreductive surgery. Patients with resectable umbilical, spleen, or local bowel lesions may be included. Enlarged extra-abdominal lymph nodes should be negative on FDG-PET or fine-needle aspiration/biopsy.Primary endpointThe primary endpoint is overall survival.Sample sizeTo detect a HR of 0.67 in favor of HIPEC, 200 overall survival events are required. With an expected accrual period of 60 months and 12 months additional follow-up, 538 patients need to be randomized.Estimated dates for completing accrual and presenting resultsThe OVHIPEC-2 trial started in January 2020 and primary analyses are anticipated in 2026.Trial registrationClinicalTrials.gov:NCT03772028.

Dataset Information

Tomm34 is commonly expressed in epithelial ovarian cancer and associates with tumour type and high FIGO stage.

Publications

Tomm34 is commonly expressed in epithelial ovarian cancer and associates with tumour type and high FIGO stage.

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