Upon cultivation of various human ovarian cancer, a successful establish ment was made on a long term continuous culture of the papillary serous cystadenocarcinoma. This new cell line was named human ovarian cancertwenty-one (HOC-21). The material obtained from an ovarian cancer on the left side of a 56 year-old woman, was placed into culture on September 22, 1971. A favorable growth has been r...

Thymic NK1.1+ cells are a recently described lymphocyte subset whose biologic function is not well defined. There is some controversy as to whether thymic NK1.1+ cells mature in a thymic or an extrathymic pathway. In this study, we examined the ontogeny of murine thymic NK1.1+ cells utilizing direct examination of freshly obtained fetal thymi as well as fetal thymi established in organ cultures...

Activin induces proliferation in epithelial ovarian carcinoma cell lines, whereas follistatin (FS), an activin binding protein, inhibits this action. To test the hypothesis that activin production, in excess of inhibin and FS, results in cell proliferation in epithelial ovarian tumors, messenger RNA (mRNA) expression of the activin family of proteins, FS, and activin type I and II receptors was...

RADA16-I peptide hydrogel, a type of nanofiber scaffold derived from self-assembling peptide RADA16-I, has been extensively applied to regenerative medicine and tissue repair in order to develop novel nanomedicine systems. In this study, using RADA16-I peptide hydrogel, a three-dimensional (3D) cell culture model was fabricated for in vitro culture of three ovarian cancer cell lines. Firstly, t...

OBJECTIVE Ovarian angiogenesis plays an important role in folliculogenesis. However, little is known about the expression of angiogenic factors during follicular development according to female age. Stromal cell derived factor-1α (SDF-1α) plays a role in granulosa cell survival and embryo quality as an angiogenic chemokine. Leptin is also involved in folliculogenesis and angiogenesis. This stud...

The aim of the present study was to develop an in vitro system for functional investigation of ovarian follicular cells in Sterlet, Acipenser ruthenus. Oocytes for the primary culture were obtained from the ovaries of a 6 years old Sterlet 729 g in weight and 47 cm in total length. The oocytes were in advanced vitellogenesis stage (PI >10). A part of the ovary (containing about 300 follicles) w...

Investigating organogenesis in utero is a technically challenging process in placental mammals due to inaccessibility of reagents to embryos that develop within the uterus. A newly developed ex vivo upright droplet culture method provides an attractive alternative to studies performed in utero. The ex vivo droplet culture provides the ability to examine and manipulate cellular interactions and ...

BACKGROUND Female cancer patients are offered 'banking' of gametes before starting fertility-threatening cancer therapy. Transplants of fresh and frozen ovarian tissue between healthy fertile and infertile women have demonstrated the utility of the tissue banked for restoration of endocrine and fertility function. Additional methods, like follicle culture and isolated follicle transplantation, ...

OBJECTIVE This study aimed to evaluate the expression of the genes related to folliculogenesis after vitrification of mouse ovarian tissues using a two-step in vitro culture. MATERIALS AND METHODS In this experimental study, vitrified and non-vitrified ovaries from 7- day old (neonate) female mice were cultured using alpha-Minimum Essential Medium (α-MEM) supplemented with 5% fetal bovine ser...

the aim of the present study was to develop an in vitro system for functional investigation of ovarian follicular cells in sterlet, acipenser ruthenus. oocytes for the primary culture were obtained from the ovaries of a 6 years old sterlet 729 g in weight and 47 cm in total length. the oocytes were in advanced vitellogenesis stage (pi >10). a part of the ovary (containing about 300 follicles) w...