Surface morphology of normal and neoplastic rat cells.

Published

Journal Article

Nontumorigenic rat cells and their tumorigenic counterparts were studied with scanning electron microscopy under controlled conditions in vitro and with transmission electron microscopy after replantation in vivo to discern if external morphology reflected the cell's neoplastic state or the etiology of transformation. Interphase cells in six of seven nontumorigenic lines were flat and monolayered under confluent conditions and exhibited smooth, nonactive cell surfaces. A nontumorigenic cell line morphologically transformed with human adenovirus-2 consisted of spherical cells with blebbed surfaces. Cells from six tumorigenic lines transformed with avian sarcoma virus had highly active surfaces with many surface projections. Cells from two chemical carcinogen-transformed rat embryo lines were flat with no surface projections in subconfluent culture and rounded with only a few microvilli at high densities, but cells from a sarcoma chemically induced in an adult rat were villous. When villous cells were syngeneically replanted in vivo, they lost most microvilli. The external morphology of cells was influenced by a number of factors simultaneously, with no universal pattern associated with tumorigenic capacity or transforming agent.

Full Text

Duke Authors

Cited Authors

  • Cloyd, MW; Bigner, DD

Published Date

  • July 1, 1977

Published In

Volume / Issue

  • 88 / 1

Start / End Page

  • 29 - 52

PubMed ID

  • 195471

Pubmed Central ID

  • 195471

International Standard Serial Number (ISSN)

  • 0002-9440

Language

  • eng

Conference Location

  • United States