Apoptosis and Cell Cycle Arrest with EGF, TGF- a and TGF- 8 in Cervical Cancer Cell Lines .
- Author:
Su Yeon KIM
;
Hye Sung MOON
;
Hye Won CHUNG
;
Hye Young PARK
;
Seung Chul KIM
- Publication Type:Original Article
- Keywords:
EGF;
TGF- a;
TGF- B;
Cell cycle;
Apoptosis
- MeSH:
Apoptosis*;
Cell Cycle Checkpoints*;
Cell Cycle*;
Cell Line*;
Epidermal Growth Factor*;
Epithelial Cells;
Flow Cytometry;
G1 Phase;
HeLa Cells;
Humans;
Ligands;
Mitogens;
Uterine Cervical Neoplasms*
- From:Korean Journal of Gynecologic Oncology and Colposcopy
1999;10(1):58-66
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: EGF and TGF-a are ligands for the EGF-receptor and act as mitogens for a variety of tissues. TGF-a, in particular, has been implicated as an autocrine growth factor for several cancer cell lines. TGF-B exerts an inhibitory effect on the growth of most epithelial cell types, and the loss of responsiveness to this growth inhibition has been implicated in the development of a variety of human cancers. In the present study, we evaluate whether EGF, TGF-a and TGF-B modulate apoptosis and cell cycle progression in cervical cancer cell lines. MATERIALS & METHODS: The effect of EGF, TGF-a and TGF-B on apoptosis and cell cycle such as CaSki and HeLa cell lines was analysed by flow cytometry RESULTS: 1. TGF-B did not induce apoptosis in CaSki and HeLa cell lines. 2. TGF-B as well as EGF, TGF-a, did not affect the process of apoptosis significantly. 3. The time to occur apoptosis was different between CaSki and HeLa cells treated by growth factots. 4. G1 phase was the checkpoint in CaSki and HeLa cells treated with TGF-B. CONCLUSION: These results suggest that TGF-B as well as EGF, TGF-a does not induce apoptosis and cell growth inhibition.
