## Abstract The DF3 gene codes for a high molecular weight human breast tumor‐associated glycoprotein. The detection of this antigen in human milk has also suggested that its expression represents a differentiated function of mammary epithelium. The present studies have examined the regulation of D
Expression of the FGFR1 gene in human breast-carcinoma cells
✍ Scribed by Jocelyne Jacquemier; José Adelaide; Patricia Parc; Frédérique Penault-Llorca; Jacqueline Planche; Odile Delapeyriere; Daniel Birnbaum
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- French
- Weight
- 742 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0020-7136
No coin nor oath required. For personal study only.
✦ Synopsis
Fibroblast growth factors (FGF) constitute a family of at least 9 members which act through high-affinity tyrosine-kinase receptors encoded by 4 distinct genes. In humans, the FGFRl gene is located in chromosomal region 8 ~1 2 . I t s amplification and expression were examined in a panel of I10 breast carcinoma samples by Southern-and Northern-blot analyses. FGFRl was amplified in 9yo and overexpressed in about l5Yo of the tumors studied. In situ hybridization experiments were performed on tissue sections of normal breast and tumors with a high level of FGFRl expression. In both normal and tumoral tissues, FGFRl RNA was detected in the epithelial cells. Overexpression of FGFRI seems to be associated with small, welldifferentiated diploid tumors.
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