RRC ID 62732
著者 Hassan WA, Yoshida R, Kudoh S, Motooka Y, Ito T.
タイトル Evaluation of role of Notch3 signaling pathway in human lung cancer cells.
ジャーナル J Cancer Res Clin Oncol
Abstract UNLABELLED:There is still a debate on the extent to which Notch3 signaling is involved in lung carcinogenesis and whether such function is dependent on cancer type or not.
PURPOSE:To evaluate Notch3 expression in different types of human lung cancer cells.
METHODS:Notch3 was detected in human lung cancer cell lines and in tissues. Then, small interfering RNA (siRNA) was used to down-regulate the expression of Notch3 in H69AR small cell lung carcinoma (SCLC) cells; two non-small cell lung carcinoma (NSCLC) cells; A549 adenocarcinoma (ADC); and H2170 squamous cell carcinoma (SCC). In addition, Notch3 intracellular domain (N3ICD) plasmid was transfected into H1688 human SCLC cells. We observed the effect of deregulating Notch3 signaling on the following cell properties: Notch-related proteins, cell morphology, adhesion, epithelial-mesenchymal transition (EMT), motility, proliferation and neuroendocrine (NE) features of SCLC.
RESULTS:Notch3 is mainly expressed in NSCLC, and the expression of Notch1, Hes1 and Jagged1 is affected by Notch3. Notch3 has opposite functions in SCLC and NSCLC, being a tumor suppressor in the former and tumor promoting in the latter, in the context of cell adhesion, EMT and motility. Regarding cell proliferation, we found that inhibiting Notch3 in NSCLC decreases cell proliferation and induces apoptosis in NSCLC. Notch3 has no effect on cell proliferation or NE features of SCLC.
CONCLUSION:Notch3 signaling in lung carcinoma is dependent on cell type. In SCLC, Notch3 behaves as a tumor suppressor pathway, while in NSCLC it acts as a tumor-promoting pathway.
巻・号 142(5)
ページ 981-93
公開日 2016-5-1
DOI 10.1007/s00432-016-2117-4
PII 10.1007/s00432-016-2117-4
PMID 26838758
MeSH Adenocarcinoma / genetics Adenocarcinoma / metabolism Adenocarcinoma / pathology* Apoptosis Biomarkers, Tumor / metabolism Blotting, Western Carcinoma, Non-Small-Cell Lung / genetics Carcinoma, Non-Small-Cell Lung / metabolism Carcinoma, Non-Small-Cell Lung / pathology* Carcinoma, Squamous Cell / genetics Carcinoma, Squamous Cell / metabolism Carcinoma, Squamous Cell / pathology* Cell Cycle Cell Movement Cell Proliferation Epithelial-Mesenchymal Transition Fluorescent Antibody Technique Gene Expression Regulation, Neoplastic* Humans Immunoenzyme Techniques Lung Neoplasms / genetics Lung Neoplasms / metabolism Lung Neoplasms / pathology* RNA, Messenger / genetics RNA, Small Interfering / genetics Real-Time Polymerase Chain Reaction Receptor, Notch3 Receptors, Notch / antagonists & inhibitors Receptors, Notch / genetics Receptors, Notch / metabolism* Reverse Transcriptase Polymerase Chain Reaction Signal Transduction Small Cell Lung Carcinoma / genetics Small Cell Lung Carcinoma / metabolism Small Cell Lung Carcinoma / pathology* Tumor Cells, Cultured
IF 3.656
リソース情報
ヒト・動物細胞 A549