SQUAMOUS-CELL CARCINOMAS OF THE HEAD AND NECK CULTURED IN FLOATING COLLAGEN GELS .1. THE MAINTENANCE OF STROMAL AND EPITHELIAL ELEMENTS IN-VITRO WITHOUT FIBROBLAST OVERGROWTH
Ap. Burfordmason et al., SQUAMOUS-CELL CARCINOMAS OF THE HEAD AND NECK CULTURED IN FLOATING COLLAGEN GELS .1. THE MAINTENANCE OF STROMAL AND EPITHELIAL ELEMENTS IN-VITRO WITHOUT FIBROBLAST OVERGROWTH, Otolaryngology and head and neck surgery, 116(2), 1997, pp. 213-222
The study of the molecular biology of head and neck squamous cell carc
inomas has been heavily reliant on the analysis of cell lines. This is
largely because the maintenance of primary cell cultures is difficult
. However, being monoclonal, cell lines are not representative of the
primary tumor because of the loss of tumor cell heterogeneity. We repo
rt a technique for primary culture of squamous cell carcinomas with ma
intenance of epithelial and stromal cell components without overgrowth
of the fibroblast cells. Phenotypic markers for fibroblasts and squam
ous cells were present up to 45 days after initiation of culture, and
expression of epidermal growth factor receptor and involucrin in cultu
res paralleled that in the primary tumor. In vivo, tumor stromal eleme
nts are thought to play an important role in the support of epithelial
cell growth. In the collagen gel system the preservation of the strom
al cell component likely improves culture viability and growth. More i
mportantly, this culture system allows the in vitro tumor to more accu
rately reflect the tumor from which it was derived, and it permits the
study of primary squamous cell carcinomas under in vitro conditions.