Modulation of microRNA associated with ovarian cancer cells by genistein.

PURPOSE: Role of microRNAs in malignancies is well established due their regulatory role in cellular differentiation, proliferation and cell cycle control. Our purpose was to determine miRNA profiles of serially established ovarian cancer cell lines and the effect of genistein treatment. METHODS: Cell lines (UL-3A, UL-3B) were established from one patient during progression of disease. miRNA profiling was performed in untreated and genistein-treated cells. Estrogen receptors (ER) were studied with real-time polymerase chain reaction (RT-PCR) and Western immunoblotting. In vitro migration and invasion assays were utilized. RESULTS: While 108 miRNAs were expressed equally in both cell lines and their genistein-treated counterparts, an additional 53 miRNAs were differentially expressed. Genistein resulted in induction of ERalpha and ERbeta in ovarian cancer cells. A significant reduction in migration and invasion of UL-3A and UL-3B was demonstrated in genistein-treated cells. CONCLUSION: Common and unique miRNA profiles were demonstrated between the two cell lines, some of which were altered by genistein.

Retraction of an intraperitoneal chemotherapy port: a case report and literature review.

Delivery of chemotherapy directly into the peritoneal cavity is becoming part of the standard frontline management of patients with optimally cytoreduced ovarian carcinoma. Traditionally, the peritoneal access devices used for this have had relatively high complication rates including infection, blockage, leakage, and difficulties with port access. In order to reduce the risk of infection, we have been using a Bard 9.6F silastic infusaport that does not have a Dacron cuff to secure it into the tissues of the anterior abdominal wall. It has the added advantage of being more easily removed at the end of treatment. We report a case of spontaneous retraction of such a port out of the peritoneal cavity into the subcutaneous tissues. This complication associated with a silastic cuffless port is presented to raise awareness of this possible complication and suggest ways of preventing it.

Cytoreduction and intraperitoneal heated chemotherapy for the treatment of endometrial carcinoma recurrent within the peritoneal cavity.

Our experience with hyperthermic intraperitoneal chemotherapy (IPHC) in conjunction with surgical resection for endometrial cancer recurrent within the abdominal cavity was reviewed. Eligible patients underwent exploratory laparotomy with the aim of resecting disease to < or =5 mm maximum dimension followed immediately by intraperitoneal perfusion of cisplatin (100 mg/m(2)) heated to 41-43 degrees C (105.8-109.4 degrees F) for 1.5 h. Data for analysis was extracted from retrospective chart review. Five patients underwent surgery and IPHC between September 2002 and January 2005 for abdomino-pelvic recurrence. Original stage and histology were 1A papillary serous (1), 1C endometrioid with clear cell features (1), and 1B endometrioid (3). Mean age was 61 (41-75) years, mean prior laparotomies were 1.4 (1-2), and mean chemotherapy agent exposure was 1.6 (0-4). Mean time from initial treatment to surgery and IPHC was 47 (29-66) months. Mean length of surgery was 9.8 (7-11) h after which three patients had no residual disease and two had < or =5 mm disease. The mean duration of hospital stay was 12.6 (6-20) days. Postoperative surgical complications included wound infection with septicemia in one patient. Mean maximum postoperative serum creatinine was 1.02 (0.6-1.70) mg/dL. There was no ototoxicity or neuropathy and no perioperative mortality. No patients have been lost to follow-up. Two are living disease free at 28 and 32 m and two are living with disease at 12 and 36 m. One patient died at 3 m without evidence of cancer. Two patients who had no residual macroscopic disease at the end of surgery are alive at 32 and 36 m. The combination of IPHC with surgery for recurrent endometrial carcinoma is relatively well tolerated. The unexpectedly long survival seen in this cohort supports a phase II trial of IPHC with cisplatin for recurrent endometrial cancer.