File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1016/S0959-8049(99)00247-6
- Scopus: eid_2-s2.0-0033621992
- PMID: 10741285
- WOS: WOS:000085548400025
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Changes in p21(WAF1), pRb, Mdm-2, Bax and Bcl-2 expression in cervical cancer cell lines transfected with a p53 expressing adenovirus
Title | Changes in p21(WAF1), pRb, Mdm-2, Bax and Bcl-2 expression in cervical cancer cell lines transfected with a p53 expressing adenovirus |
---|---|
Authors | |
Keywords | Adenoviral Vector Bax/Bcl-2 Cervical Cancer Cell Lines Growth Arrest/Apoptosis Mdm2 P21(Waf1) P53 Prb |
Issue Date | 2000 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ejca |
Citation | European Journal Of Cancer, 2000, v. 36 n. 2, p. 249-256 How to Cite? |
Abstract | The aim of this study was to provide some insights into the molecular mechanisms involved in p53-dependent apoptosis and growth arrest. Changes in the levels of p53 protein and proteins regulated by p53 were studied in relation to events of the cell cycle and apoptosis in cervical cancer cell lines upon transfection with a p53 expressing adenovirus (Ad5-p53). The post- transfection level of p53 protein in SiHa cells was found to be unchanged during the 24-48 h period. In contrast, the level of p21(WAF1) protein was shown to increase to its highest level at 24 h, and decreased gradually up to 48 h after the Ad5-p53 transfection. We further noted that the increase of p21(WAF1) was accompanied by G1 arrest at 24 h and the decrease of p21(WAF1) was associated with apoptosis at 36-48 h after transfection. An anti- p21(WAF1) antibody cross-reactive protein band of approximately 14 kDa was observed in HeLa and C-33A cells when these cells were committed to apoptosis upon Ad5-p53 transfection. In SiHa cells, phosphorylation of pRb was inhibited during the early stage of Ad5-p53 transfection. This was followed by the cleavage of pRb. However, Ad5-p53 transfection did not change the levels of Bax and Bcl-2 proteins. Our results suggested that, Bax and Bcl-2 may not be important for the apoptosis of these cells, whereas cleavage of Rb, and the decrease of p21(WAF1) could play important roles in p53-dependent apoptosis. (C) 2000 Elsevier Science Ltd. |
Persistent Identifier | http://hdl.handle.net/10722/173236 |
ISSN | 2023 Impact Factor: 7.6 2023 SCImago Journal Rankings: 2.501 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Huang, TG | en_US |
dc.contributor.author | Ip, SM | en_US |
dc.contributor.author | Yeung, WSB | en_US |
dc.contributor.author | Ngan, HYS | en_US |
dc.date.accessioned | 2012-10-30T06:28:42Z | - |
dc.date.available | 2012-10-30T06:28:42Z | - |
dc.date.issued | 2000 | en_US |
dc.identifier.citation | European Journal Of Cancer, 2000, v. 36 n. 2, p. 249-256 | en_US |
dc.identifier.issn | 0959-8049 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/173236 | - |
dc.description.abstract | The aim of this study was to provide some insights into the molecular mechanisms involved in p53-dependent apoptosis and growth arrest. Changes in the levels of p53 protein and proteins regulated by p53 were studied in relation to events of the cell cycle and apoptosis in cervical cancer cell lines upon transfection with a p53 expressing adenovirus (Ad5-p53). The post- transfection level of p53 protein in SiHa cells was found to be unchanged during the 24-48 h period. In contrast, the level of p21(WAF1) protein was shown to increase to its highest level at 24 h, and decreased gradually up to 48 h after the Ad5-p53 transfection. We further noted that the increase of p21(WAF1) was accompanied by G1 arrest at 24 h and the decrease of p21(WAF1) was associated with apoptosis at 36-48 h after transfection. An anti- p21(WAF1) antibody cross-reactive protein band of approximately 14 kDa was observed in HeLa and C-33A cells when these cells were committed to apoptosis upon Ad5-p53 transfection. In SiHa cells, phosphorylation of pRb was inhibited during the early stage of Ad5-p53 transfection. This was followed by the cleavage of pRb. However, Ad5-p53 transfection did not change the levels of Bax and Bcl-2 proteins. Our results suggested that, Bax and Bcl-2 may not be important for the apoptosis of these cells, whereas cleavage of Rb, and the decrease of p21(WAF1) could play important roles in p53-dependent apoptosis. (C) 2000 Elsevier Science Ltd. | en_US |
dc.language | eng | en_US |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ejca | en_US |
dc.relation.ispartof | European Journal of Cancer | en_US |
dc.subject | Adenoviral Vector | en_US |
dc.subject | Bax/Bcl-2 | en_US |
dc.subject | Cervical Cancer Cell Lines | en_US |
dc.subject | Growth Arrest/Apoptosis | en_US |
dc.subject | Mdm2 | en_US |
dc.subject | P21(Waf1) | en_US |
dc.subject | P53 | en_US |
dc.subject | Prb | en_US |
dc.title | Changes in p21(WAF1), pRb, Mdm-2, Bax and Bcl-2 expression in cervical cancer cell lines transfected with a p53 expressing adenovirus | en_US |
dc.type | Article | en_US |
dc.identifier.email | Yeung, WSB:wsbyeung@hkucc.hku.hk | en_US |
dc.identifier.email | Ngan, HYS:hysngan@hkucc.hku.hk | en_US |
dc.identifier.authority | Yeung, WSB=rp00331 | en_US |
dc.identifier.authority | Ngan, HYS=rp00346 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/S0959-8049(99)00247-6 | en_US |
dc.identifier.pmid | 10741285 | - |
dc.identifier.scopus | eid_2-s2.0-0033621992 | en_US |
dc.identifier.hkuros | 48867 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0033621992&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 36 | en_US |
dc.identifier.issue | 2 | en_US |
dc.identifier.spage | 249 | en_US |
dc.identifier.epage | 256 | en_US |
dc.identifier.isi | WOS:000085548400025 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Huang, TG=7404962005 | en_US |
dc.identifier.scopusauthorid | Ip, SM=55041321600 | en_US |
dc.identifier.scopusauthorid | Yeung, WSB=7102370745 | en_US |
dc.identifier.scopusauthorid | Ngan, HYS=34571944100 | en_US |
dc.identifier.issnl | 0959-8049 | - |