Authors:
Address: Department of Pathology University of California, Irvine 92668, USA.
Journal:
Publication:
abstractsquamous carcinoma of the VULVa (SCV) is an uncommon neoplasm of uncertain etiology. There is evidence that there are two subgroups of SCV, one associated with human papilloma virus (HPV) and a second HPV-negative group. The UCI-VULV-1 cell line, obtained from a lymph node metastasis of an SCV, grows with a population doubling time of approximately 60 hr. The saturation density is 10(5) cells/cm2. The cell line does not exhibit anchorage independence and is weakly tumorigenic. The cells range in appearance from an abundant spindle cell to a less common larger, flat cell. All of the cells are immunoreactive for high-molecular-weight keratin, but only the flat cells, which form squamous pearls in vivo, are immunoreactive for low-molecular-weight keratin. The cell line expresses epidermal growth factor (EGF), transforming growth factor-alpha, the EGF receptor, and p53 protein. Polymerase chain reaction revealed no HPV DNA within the cells. Early passage cells exhibited karyotypic heterogeneity with few similarities to previous described SCV karyotypes. The cells display sensitivity to cis-platinum in concentrations toxic to many ovarian and cervical carcinoma lines. UCI-VULV-1 may be helpful for studying the properties of the HPV-negative form of SCV.
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