Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Gene expression data from biological replicates of imatinib and nilotinib resistant K-562 cells

ABSTRACT: Resistant cells were generated by stepwise exposure to increasing concentrations of imatinib or nilotinib to establish 0.5 and 2 µM imatinib and 0.1 µM nilotinib resistant cells. This procedure was performed twice independently to establish biological replicates of TKI resistance. We performed microarrays to analyze the changes in gene expression during the development of TKI resistance.

ORGANISM(S): Homo sapiens

PROVIDER: GSE203442 | GEO | 2022/05/21

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Methylation data from biological replicates of imatinib and nilotinib resistant K-562 cells

Project description:Resistant cells were generated by stepwise exposure to increasing concentrations of imatinib or nilotinib to establish 0.5 and 2 µM imatinib and 0.1 µM nilotinib resistant cells. This procedure was performed twice independently to establish biological replicates of TKI resistance. We analyzed genome-wide methylation to investigate changes in methylation during the development of TKI resistance.

2022-05-21 | GSE203443 | GEO

Gene expression data from biological replicates of imatinib and nilotinib resistant K-562 cells.

Project description:Resistant cells were generated by stepwise exposure to increasing concentrations of imatinib or nilotinib to establish 0.5 and 2 µM imatinib and 0.05 µM nilotinib resistant cells. This procedure was performed twice independently to establish biological replicates of TKI resistance. We performed microarrays (Clariom S) to analyze the changes in gene expression during the development of TKI resistance.

2023-06-30 | GSE227347 | GEO

Methylation data from biological replicates of imatinib and nilotinib resistant K-562 cells

Project description:Methylation data from biological replicates of imatinib and nilotinib resistant K-562 cells

| PRJNA840879 | ENA

Gene expression data from biological replicates of imatinib and nilotinib resistant K-562 cells.

Project description:Gene expression data from biological replicates of imatinib and nilotinib resistant K-562 cells.

| PRJNA944685 | ENA

Gene expression data from biological replicates of imatinib and nilotinib resistant K-562 cells

Project description:Gene expression data from biological replicates of imatinib and nilotinib resistant K-562 cells

| PRJNA840878 | ENA

Imatinib and Nilotinib induced molecular changes in Philadelphia chromosome-positive Chronic Myelogenous Leukemia

Project description:Chronic myelogenous leukemia (CML) is a malignant stem cell disease characterized by a reciprocal translocation between chromosome 9 and 22. The selective bcr-abl tyrosine-kinase inhibitor Imatinib has become the therapy of choice for patients with newly diagnosed CML including those previously considered candidates for allogeneic haematopoietic stem cell transplantation. The tyrosine-kinase inhibitor Nilotinib is a derivate of Imatinib with higher potency. To examine the molecular and functional effects of Nilotinib and Imatinib in chronic myelogenous leukemia, we performed gene expression and functional analyses in K562 cells following treatment with the two tyrosine kinase inhibitors.

2009-12-19 | GSE19567 | GEO

Transcription profiling of human K562 cells reveals Imatinib and Nilotinib induced molecular changes in Philadelphia chromosome-positive Chronic Myelogenous Leukemia

2010-01-19 | E-GEOD-19567 | biostudies-arrayexpress

Exosomes released by imatinib-resistant K562 cells carry specific membrane markers and increase survival of imatinib-sensitive cells in the presence of imatinib.

Project description:Chronic myeloid leukemia is a malignant hematopoietic disorder distinguished by a presence of BCR-ABL fused oncogene with constitutive kinase activity. Although targeted therapy by tyrosine kinase inhibitors (TKI) markedly improved patient´s survival and quality of life, development of drug resistance remains a critical issue for a subset of patients. The most common mechanism of TKI resistance in CML patients is a mutation in BCR-ABL gene which makes oncogenic Bcr-Abl protein insensitive to TKI therapy. Mutation independent mechanisms of TKI resistance are less elucidated, but exosomes, extracellular vesicles excreted from normal and tumor cells were recently linked with cancer progression and drug resistance. We used an imatinib-sensitive CML cell line K562 and derived an imatinib-resistant subline K562IR by prolonged cultivation of cells in presence of imatinib. We demonstrated that exosomes isolated from K562IR cells are internalized by K562 cells and increase their survival in presence of 2µM imatinib. To characterize the exosomal cargo and to identify resistance-associated marker proteins, we performed a deep proteomic analysis of exosomes from both cell sublines using label free quantification (LFQ). In total, we identified over 3000 exosomal proteins including 31 proteins differentially abundant in exosomes derived from K562IR cells. Among the differential proteins were three massively upregulated membrane proteins in K562IR exosomes with surface localization: IFITM3, CD146, CD36. We verified the massive upregulation of the three proteins in K562IR exosomes and also in K562IR cells. Using flow cytometry, we further demonstrated potential of CD146 as cell surface marker associated with imatinib resistance in K562 cells.

2024-10-24 | PXD019283 | Pride

Transcription profiling of human lung cancer cells treated with dasatinib, imatinib, nilotinib or PD0325901

Project description:Cell Line: This experiment was designed to measure the transcriptional responses to four kinase inhibitors across a five-logarithm dose range. The A549 human lung cancer cell line was treated with dasatinib, imatinib or nilotinib (4 hours and 20 hours) or PD0325901 (4 hours). Treatments used a 12-point dose range (30 uM with 3-fold dilutions down to 0.17 nM; 0.5% DMSO vehicle for all treatments). Experimental design prevented row or column handling effects being confounded with dose effect.

2008-12-31 | E-TABM-585 | biostudies-arrayexpress

A MALDI-TOF assay identifies nilotinib as an inhibitor of inflammation

Project description:Inflammatory responses are important in cancer, particularly in the context of monocyte-rich aggressive myeloid neoplasm. We developed a label-free cellular phenotypic drug discovery assay to identify anti-inflammatory drugs in human monocytes derived from acute myeloid leukemia (AML), by quantifying several biological features ionizing from only 2,500 cells using matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry. A proof-of-concept screening showed that the BCR-ABL inhibitor nilotinib, but not the structurally similar imatinib, blocks inflammatory responses in AML and multiple myeloma. In order to identify the cellular (off-)targets for nilotinib, we performed thermal proteome profiling (TPP) over a range of temperatures and compound concentrations. Unlike imatinib, nilotinib inhibits p38 alpha MAP Kinase (MAPK14) and its downstream signaling pathway. This suppressed the expression of inflammatory cytokines, cell adhesion, and innate immunity markers in activated human monocytes derived from AML. Thus, our study provides a tool for the discovery of new anti-inflammatory drugs, which could potentially contribute to the treatment of inflammation in myeloid neoplasms and other diseases.

2022-09-30 | PXD025020 | Pride

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data