Structural and functional alterations associated with transformation in rat ovarian cell model systems /

a step-wise fashion in the SIGC -> SV-SIGC -> T-SV-SIGC

Bibliographic Details
Main Author: Echols, Jana Elizabeth
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1995.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:a step-wise fashion in the SIGC -> SV-SIGC -> T-SV-SIGC
additional cell line (T-SVSIGC). Utilizing indirect
Additionally, SIGC were continuously passaged in culture.
anchorage-independent, as shown by soft agar assay. The
and also showed decreased desmosome expression when compared
calcium medium showed a dramatic reduction of desmoglein
carcinogenesis. Spontaneously immortalized rat granuloma
cells (SIGC) were transfected with either the pSV3neo plasmid
clones in soft agar and showed a decrease in desmosomal and
cytokeratin associated protein organization. They also
cytokeratin pattern density was diminished in the neu-SIGC
dramatic decrease compared to SIGC. SIGC subject to low
exhibited a decrease in the rate of GJIC and an increase in
glutathione levels compared to low passage (23) SIGC.
immunofluorescence and monoclonal antibodies, the expression
In vitro cell model systems derived from rat granuloma cells
junctional intercellular communication (GJIC) was reduced in
lower when compared to SIGC, but T-SV-SIGC showed the most
mice and the resulting tumors were expanded into an
migration in the wound healing assay. Additionally, gap
neu-SIGC compared to SIGC. Late passage SIGC readily formed
of desmosomes and associated cytokeratins in SV-SIGC was
plasmid containing the Her-21neu oncogene (neu-SIGC).
staining at cell-cell borders, as well as, single cell
structural and functional alterations associated with the
system. SIGC transfected with the neu oncogene were
The three cell model systems were evaluated according to
to SIGC. GJIC was also significantly reduced in the neu-SIGC
transformed phenotype. SV-SIGC cells were injected into nude
were developed for the study of multistep ovarian
when compared to the parental line SIGC. GSH was elevated in
which contains the SV40 early region genes (SV-SIGC) or the
Item Description:"Major subject: Veterinary Anatomy".
Vita.
Physical Description:viii, 72 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references.