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- Publisher Website: 10.1002/jcp.22683
- Scopus: eid_2-s2.0-79958140770
- PMID: 21344382
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Article: Molecular changes during arsenic-induced cell transformation
Title | Molecular changes during arsenic-induced cell transformation |
---|---|
Authors | |
Issue Date | 2011 |
Publisher | John Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/31010 |
Citation | Journal of Cellular Physiology, 2011, v. 226 n. 12, p. 3225-3232 How to Cite? |
Abstract | Arsenic and its derivatives are naturally occurring metalloid compounds widely distributed in the environment. Arsenics are known to cause cancers of the skin, liver, lung, kidney, and bladder. Although numerous carcinogenic pathways have been proposed, the exact molecular mechanisms remain to be delineated. To further characterize the role of oxidative stress in arsenite-induced cell transformation via the reactive oxygen species (ROS)-mediated Ras/Erk pathway, here we demonstrated arsenite-induced rat lung epithelial cell (LEC) transformation, epithelial-mesenchymal transition, stimulation of the extracellular signal-regulated kinase signaling pathway, and enhancement of cell proliferation. However, there was no evidence of activation of the phosphoinositide 3-kinase/protein kinase B pathway in arsenite-induced transformed LECs. Since ROS is involved in arsenite-induced LEC cell transformation, Redox-status regulatory proteins (Cu/Zn SOD and thioredoxin) and arsenite-induced LEC cell transformation were significantly inhibited by concurrent treatment with the antioxidants. Our experimental results clearly demonstrated that induction of p-ERK and cell proliferation by arsenite is mediated via oxidative stress, since antioxidants can inhibit arsenite-induced cell transformation. |
Persistent Identifier | http://hdl.handle.net/10722/137204 |
ISSN | 2023 Impact Factor: 4.5 2023 SCImago Journal Rankings: 1.321 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Li, G | en_HK |
dc.contributor.author | Lee, LS | en_HK |
dc.contributor.author | Li, M | en_HK |
dc.contributor.author | Tsao, SW | en_HK |
dc.contributor.author | Chiu, JF | en_HK |
dc.date.accessioned | 2011-08-26T14:18:47Z | - |
dc.date.available | 2011-08-26T14:18:47Z | - |
dc.date.issued | 2011 | en_HK |
dc.identifier.citation | Journal of Cellular Physiology, 2011, v. 226 n. 12, p. 3225-3232 | en_HK |
dc.identifier.issn | 0021-9541 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/137204 | - |
dc.description.abstract | Arsenic and its derivatives are naturally occurring metalloid compounds widely distributed in the environment. Arsenics are known to cause cancers of the skin, liver, lung, kidney, and bladder. Although numerous carcinogenic pathways have been proposed, the exact molecular mechanisms remain to be delineated. To further characterize the role of oxidative stress in arsenite-induced cell transformation via the reactive oxygen species (ROS)-mediated Ras/Erk pathway, here we demonstrated arsenite-induced rat lung epithelial cell (LEC) transformation, epithelial-mesenchymal transition, stimulation of the extracellular signal-regulated kinase signaling pathway, and enhancement of cell proliferation. However, there was no evidence of activation of the phosphoinositide 3-kinase/protein kinase B pathway in arsenite-induced transformed LECs. Since ROS is involved in arsenite-induced LEC cell transformation, Redox-status regulatory proteins (Cu/Zn SOD and thioredoxin) and arsenite-induced LEC cell transformation were significantly inhibited by concurrent treatment with the antioxidants. Our experimental results clearly demonstrated that induction of p-ERK and cell proliferation by arsenite is mediated via oxidative stress, since antioxidants can inhibit arsenite-induced cell transformation. | en_HK |
dc.language | eng | en_US |
dc.publisher | John Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/31010 | en_HK |
dc.relation.ispartof | Journal of Cellular Physiology | en_HK |
dc.rights | Journal of Cellular Physiology. Copyright © John Wiley & Sons, Inc. | - |
dc.subject.mesh | Arsenites - toxicity | en_HK |
dc.subject.mesh | Carcinogens, Environmental - toxicity | en_HK |
dc.subject.mesh | Cell Transformation, Neoplastic - chemically induced - metabolism - pathology | en_HK |
dc.subject.mesh | Epithelial Cells - drug effects - metabolism - pathology | en_HK |
dc.subject.mesh | Epithelial-Mesenchymal Transition - drug effects | en_HK |
dc.title | Molecular changes during arsenic-induced cell transformation | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Tsao, SW: gswtsao@hku.hk | en_HK |
dc.identifier.email | Chiu, JF: jfchiu@hkucc.hku.hk | - |
dc.identifier.authority | Tsao, SW=rp00399 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1002/jcp.22683 | en_HK |
dc.identifier.pmid | 21344382 | - |
dc.identifier.scopus | eid_2-s2.0-79958140770 | en_HK |
dc.identifier.hkuros | 191898 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-79958140770&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 226 | en_HK |
dc.identifier.issue | 12 | en_HK |
dc.identifier.spage | 3225 | en_HK |
dc.identifier.epage | 3232 | en_HK |
dc.identifier.isi | WOS:000296458100015 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Chiu, JF=7201501692 | en_HK |
dc.identifier.scopusauthorid | Tsao, SW=7102813116 | en_HK |
dc.identifier.scopusauthorid | Li, M=7405264639 | en_HK |
dc.identifier.scopusauthorid | Lee, LS=54408918600 | en_HK |
dc.identifier.scopusauthorid | Li, G=43161253800 | en_HK |
dc.identifier.issnl | 0021-9541 | - |