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Human lung adenocarcinoma NCI-H1975 cells: parental vs cell lines resistant to the EGFR-TK inhibitor CNX-2006

ABSTRACT: Genome variation profiling of lung adenocarcinoma cells comparing untreated NCI-H1975 cells with CNX-2006-resistant untreated cells. Goal was to determine the potential mechanism of resistance to mutant EGFR-TKIs and rationally design novel strategies for the treatment of EGFR-mutant lung cancer patients. Two-condition experiment: NCI-H1975 parental cells vs CNX-2006-resistant cells. Pooled DNA from healthy volunteers was used as reference.

ORGANISM(S): Homo sapiens

SUBMITTER: Elena Galvani

PROVIDER: E-GEOD-53234 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Human lung adenocarcinoma NCI-H1975 cells: parental vs cell lines resistant to the EGFR-TK inhibitor CNX-2006

Project description:Genome variation profiling of lung adenocarcinoma cells comparing untreated NCI-H1975 cells with CNX-2006-resistant untreated cells. Goal was to determine the potential mechanism of resistance to mutant EGFR-TKIs and rationally design novel strategies for the treatment of EGFR-mutant lung cancer patients.

2015-07-01 | GSE53234 | GEO

Transcriptome profiling of Anlotinib-resistant NCI-H1975 and Anlotinib-treated Anlotinib-resistant NCI-H1975

Project description:Further to our previous study (E-MTAB-5997), here we performed transcriptome profiling on Anlotinib-resistant NCI-H1975 and Anlotinib-treated Anlotinib-resistant NCI-H1975, and would like to understand the effects of Anlotinib on Anlotinib-resistant NCI-H1975 cell, compare the different transcriptome profiling on NCI-H1975 cells and Anlotinib-resistant NCI-H1975 cells, sought to find the biomarker for explaining Anlotinib resistance.

2019-07-01 | E-MTAB-7068 | biostudies-arrayexpress

Gene expression data in the human non-small cell lung cancer cell line NCI-H1975 and osimertinib-resistant OR1 and OR2 cells

Project description:Osimertinib, a third-generation EGFR-TKI, has applied to non-small cell lung cancer harboring activated EGFR mutation with or without T790M. However, the appearance of tumors resistant to osimertinib has been reported. We established and characterized osimertinib-resistant cells derived from NCI-H1975 cells harboring activating EGFR and T790M mutation.

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Role of Anlotinib-induced CCL2 decrease in anti-angiogensis and response prediction for Non-Small Cell Lung Cancer therapy

Project description:Purpose: Our previous clinical trials have been demonstrated that Anlotinib can inhibit tumor growth upon refractory advanced non-small cell lung cancer (NSCLC) patients with the possibility mechanism of anti-angiogenesis. The present study sought to reveal the underlying molecular mechanism of Anlotinib-induced anti-angiogenesis in advanced NSCLC. Experimental Design: Computed tomography (CT) was used to evaluate the treatment effect of Anlotinib upon refractory advanced NSCLC patients. Transcriptome profiling was performed to identify the key gene expression alteration in NCI-H1975 cells before and after Anlotinib treatment. NCI-H1975 derived xenograft model was applied to investigate treatment effect and verify anti-angiogenesis mechanism of Anlotinib. Results: Anlotinib induces tumor cytotoxicity on refractory advanced NSCLC patients, NCI-H1975 derived xenograft models and lung adenocarcinoma cell lines. Transcriptome profiling revealed CCL2 blockade could be responsible for Anlotinib-induced anti-angiogenesis. NCI-H1975 derived xenograft model demonstrated Anlotinib-induced CCL2 blockade play an important role in anti-angiogenesis. Conclusions: This study not only offered the first evidence that Anlotinib inhibits angiogenesis via blocking CCL2 expression, but also provided a novel theoretical basis for the application of Anlotinib in advanced NSCLC patients.

2018-11-30 | E-MTAB-5997 | biostudies-arrayexpress

Erastin induced protein expression change in H1975 cells

Project description:H1975 cells were treated with DMSO and erastin, respectively. Protein was extracted and separated using SDS-PAGE electrophoresis. MS analysis was performed and protein was identified and quantified using Proteome Discoverer™ 1.3 software using the SEQUEST® search engine.

2021-09-09 | PXD020205 | Pride

Transcriptome profiling of Anlotinib-resistant NCI-H1975 and Anlotinib-treated Anlotinib-resistant NCI-H1975

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Gene expression profile of cell lines 2106T, H1975 and MeWo after knockdown of PAEP.

Project description:Gene expression profile was analyzed after knockdown of PAEP in lung cancer cell lines 2106T and H1975 as well as in skin cancer cell line MeWo. The aim of the study was to investigate the role of PAEP and its protein product glycodelin in lung cancer cell lines. Cells were treated with a control siRNA or a siRNA pool of 4 siRNAs targeting PAEP. RNA of three biological replicates each was extracted and used for Affymetrix analyses.

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Homo sapiens strain:NCI-H1975

Project description:Homo sapiens strain:NCI-H1975 Raw sequence reads

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Aberrant ERK signaling causes resistance to EGFR kinase inhibitors

Project description:The clinical efficacy of EGFR kinase inhibitors is limited by the development of drug resistance. The irreversible EGFR kinase inhibitor WZ4002 is effective against the most common mechanism of drug resistance mediated by the EGFR T790M mutation. Here we show that in multiple complementary models harboring EGFR T790M, resistance to WZ4002 develops through aberrant activation of ERK signaling caused by either an amplification of MAPK1 or by downregulation of negative regulators of ERK signaling. Inhibition of MEK or ERK restores sensitivity to WZ4002, and the combination of WZ4002 and a MEK inhibitor prevents the emergence of drug resistance. The WZ4002 resistant MAPK1 amplified cells also demonstrate an increase both in EGFR internalization and a decrease in sensitivity to cytotoxic chemotherapy compared to the parental counterparts. Our findings provide insights into mechanisms of drug resistance to EGFR kinase inhibitors and highlight rational combination therapies that should be evaluated in clinical trials. Our study identifies ERK signaling as a mediator of resistance to irreversible pyrimidine EGFR inhibitors in EGFR T790M-bearing cancers. We further provide a therapeutic strategy to both treat and prevent the emergence of this resistance mechanism. To generate drug-resistant NCI-H1975 cell lines, non-small cell lung cancer (NSCLC) cells were exposed to increasing concentrations of WZ4002 similar to previously described methods. Individual clones from WZ4002-resistant (WZR) cells were isolated and confirmed to be drug resistant. Clone #6, designated as WZR6, was used in this study. For expression analysis, samples were prepared in triplicate from parental NCI-H1975 and NCI-H1975 WZR6 cells.

2012-10-01 | E-GEOD-37699 | biostudies-arrayexpress

Microrna expression (Agilent McroRNA Array)

Project description:MicroRNA profiling of 3 Human NSCLC cell lines (PC9,PC9R,H1975)

2013-10-01 | E-MTAB-1327 | biostudies-arrayexpress