Zhonghua laodong weisheng zhiyebing zazhi, 2007-01, Vol.25 (1), p.5
2007
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- Autor(en) / Beteiligte
- Titel
- The activation of MAPK/cyclin D1-CDK4 signaling pathway caused by quartz
- Ist Teil von
- Zhonghua laodong weisheng zhiyebing zazhi, 2007-01, Vol.25 (1), p.5
- Ort / Verlag
- China
- Erscheinungsjahr
- 2007
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- To study the phosphorylation level of mitogen activated protein kinase (MAPK) in human embryonic lung fibroblasts (HELF), and the expression level of cyclin D1-CDK4 protein in S-HELF and whether the expression level of cyclin D1-CDK4 protein mediated by MAPK/AP-1 signaling pathway in S-HELF. Two kinds of treatment: (1) Cells were harvested after stimulation 2 h for the detection of cytokines. (2) Cells were stimulated by quartz for a long time (2 months) for transformation characters (S-HELF). The MAP kinase was detected by western blot. Cyclin D1 and CDK4 (cyclin dependent kinase 4) proteins was measured by immunocytochemistry. Flow cytometry was used to evaluate the alternation of cell cycle. Crystalline quartz could cause the phosphorylation level of ERKs, p38K, and JNKs in HELF increase. However, activated levels of ERKs and p46 of JNKs increased in S-HELF, and p38K activation decreased, and no effect on activation of p54 of JNKs, as compared with those in parental HELF. Cyclin D1 and CDK4 protein express
- Sprache
- Chinesisch
- Identifikatoren
- ISSN: 1001-9391Titel-ID: cdi_pubmed_primary_17374178
- Format
- –
- Schlagworte
- Cell Line, Cyclin D1 - metabolism, Cyclin-Dependent Kinase 4 - metabolism, Fibroblasts - cytology, Fibroblasts - drug effects, Fibroblasts - metabolism, Humans, Lung - cytology, MAP Kinase Signaling System - drug effects, Mitogen-Activated Protein Kinases - metabolism, Quartz - toxicity