Fluorescence in situ hybridization of three oncogenes on a leiomyoma.

Using fluorescence in situ hybridization technique, expression of three oncogenes, C-myc, RARa, and cyclin-D was tested on a uterine leiomyoma. C-myc and RARa were amplified in approximately 30% and 90% of the cells, respectively. Numerous small signals of C-myc were indicative of the presence of double minutes.

Clonal Variation within an Adenocarcinoma of the Endometrium Cultured in Different Substrates and Media.

An adenocarcinoma of the endometrium was cultured separately in four different combinations of two substrates (normal tissue culture plastic and PrimariaTM) and two media (RPMI-1640 and serum free LHC-9). Our study substantiates our earlier view that no specific combination of substrate and media is superior to any other; rather, it is dependent upon the compatibility of a clone with that specific substrate and media combination.

A Superior Technique for Culturing and Karyotyping Solid Tumors.

We have devised a new cell culture method where two types of culture plates made of normal tissue culture plastic (NTCP) and Primaria(TM), and two media, RPMI-1640 and a serum-free media LHC-9(TM), are used in combination with an in situ harvest. Multiple culture conditions in combination with in situ harvest has yielded many more clones for karyotyping than was possible with previous methods. Cells were cultured in 60 mm Petri plates instead of flasks and harvested in situ.

Trisomy 21 as the only recurrent chromosomal anomaly in a clinically aggressive ovarian carcinoma.

A case of a highly aggressive grade III poorly differentiated serous adenocarcinoma of the ovary was determined to exhibit trisomy 21 as the sole chromosomal abnormality. To eliminate the possibility that this trisomy was constitutional, the patient's blood cells were subjected to locus specific 21q22.13 approximately q22.

Establishment and characterization of a poorly differentiated lethal human endometrial carcinoma cell line (NOU-1) with karyotype 46,XX.

Immortal gynecologic cell lines, especially those of endometrial origin are diverse with multiple chromosomal alterations, making the study of origin and molecular genetic characteristics of such neoplasms difficult, if not impossible. We have established a new epithelial, poorly differentiated endometrial adenocarcinoma cell line (NOU-1) with a 46,XX chromosome complement. To confirm the tumor characteristics, we injected this cell line subcutaneously into the nude mouse.