Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Angiogenesis blockade overcomes acquired KRAS G12D inhibitor resistance driven by KRAS-PI3Kγ interaction

ABSTRACT: Angiogenesis blockade overcomes acquired KRAS G12D inhibitor resistance driven by KRAS-PI3Kγ interaction

PROVIDER: PRJNA1228152 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	SRR32485704_1.fastq.gz	Fastqsanger.gz
	SRR32485704_2.fastq.gz	Fastqsanger.gz
	SRR32485705_1.fastq.gz	Fastqsanger.gz
	SRR32485705_2.fastq.gz	Fastqsanger.gz
	SRR32485706_1.fastq.gz	Fastqsanger.gz

Items per page:

1 - 5 of 14

Similar Datasets

Angiogenesis blockade overcomes acquired KRAS G12D inhibitor resistance driven by KRAS-PI3Kγ interaction

Project description:The KRAS G12D mutation is a key oncogenic driver in many solid tumors, including pancreatic, gastric, and colorectal cancers. While recent preclinical studies have characterized features associated with innate and acquired KRAS G12D inhibitor resistance, strategies to overcome resistance, especially in the gastrointestinal cancer context, remain underexplored. Here, we generated nine gastrointestinal cancer models of acquired resistance to the KRAS G12D-selective inhibitor MRTX1133. We identified the enrichment of angiogenesis, hypoxia, and epithelial-to-mesenchymal transition (EMT) in an isogenic patient-derived organoid model of acquired resistance by single-cell RNA sequencing. In the nine resistant models, VEGFA expression and VEGFR2 phosphorylation were unanimously increased. Subsequent mechanistic studies revealed that an autocrine VEGFA signaling loop, initiated by an increased interaction between KRAS and PI3Kγ, drives both EMT and RAS independence. Elevated mitochondrial oxidative stress in resistant cells led to CCT2-mediated KRAS stabilization, thereby enhancing PI3Kγ activity. Moreover, we observed that cancer-vascular paracrine signaling both amplified angiogenesis and EMT signatures in cancer cells and promoted endothelial cell proliferation. Significantly, disruption of VEGFA signaling reversed EMT induction and restored sensitivity to MRTX1133. Concordantly, in mouse xenograft models, the combination of anti-VEGFR2 therapy and MRTX1133 rechallenge significantly reduced tumor growth, angiogenesis, and proliferation markers without adverse effects on body weight. These findings identify a critical role for VEGFA signaling in resistance to KRAS G12D inhibition and provide a rationale for combination therapies targeting angiogenesis in gastrointestinal cancers.

2025-03-02 | GSE290487 | GEO

Angiogenesis blockade overcomes acquired KRAS G12D inhibitor resistance driven by KRAS-PI3Kγ interaction [scRNA-Seq]

2025-03-03 | GSE290526 | GEO

Angiogenesis blockade overcomes acquired KRAS G12D inhibitor resistance driven by KRAS-PI3Kγ interaction [scRNA-Seq]

Project description:Angiogenesis blockade overcomes acquired KRAS G12D inhibitor resistance driven by KRAS-PI3Kγ interaction [scRNA-Seq]

| PRJNA1228565 | ENA

Expression data comparing KRas(G12D/+);CreT, R26(H1047R/+);KRas(G12D/+);CreT, and MMTV-Neu mouse mammary tumors

Project description:Breast Cancer (BC) has been associated with alterations in signaling through a number of growth factor and hormone regulated pathways. Mouse models for metastatic BC have been developed using oncoproteins that activate PI3K, Stat3 and Ras signaling. To determine the role of each pathway, we analyzed mouse mammary tumor formation when they were activated singly or pairwise. We used microarrays to detect differentially expressed genes in the KRas(G12D/+);CreT and R26(H1047R/+);KRas(G12D/+);CreT tumors Total RNA was extracted from tumors developed by Qiagen RNAeasy kit and hybridized on Affymetrix microarrays.

2015-09-16 | E-GEOD-73073 | biostudies-arrayexpress

RNA sequencing of SW1990 KRAS-G12D or KRAS-G12D/K128R knockin cell lines

Project description:RNA sequencing of SW1990 KRAS-G12D or KRAS-G12D/K128R knockin cell lines

| PRJNA1089940 | ENA

RNA-SEQ analysis of pancreatic ductal adenocarcinoma tumours in Pdx1-Cre;lsl-KRas[G12D] (KC), Pdx1-Cre;lsl-KRas[G12D];Rosa26-lsl-MYC[DM] (KMC), Pdx1-Cre;lsl-KRas[G12D];Rosa26-lsl-MYC[DM];c-Myc[fl/+] (KMC-Mycfl/+), and Pdx1-Cre;lsl-KRas[G12D];Rosa26-lsl-MYC[DM];Zbtb17[fl/fl] mice (KMC-Miz1fl/fl)

Project description:Activation of endogenously expressed KRas[G12D] in the pancreas of mice gives rise primarily to early stage PanIN lesions, however such lesions can occasionally progress to end-stage ductal adenocarcinoma (PDAC). Progression of KRas[G12D]- initiated lesions to PDAC is accelerated by modest expression of MYC from the Rosa26 locus. Deletion of 1 copy of endogenous c-Myc or both copies of endogenous Zbtb17 (aka Miz1), slows progression to PDAC and extends healthful survival of Pdx1-Cre;lsl-KRas[G12D];Rosa26-lsl-MYC[DM] (KMC) mice. Tumours were removed from mice with all 4 genotypes and validated by histological examination prior to RNA-SEQ analysis.

2020-03-16 | E-MTAB-8797 | biostudies-arrayexpress

Expression data comparing KRas(G12D/+);CreT, R26(H1047R/+);KRas(G12D/+);CreT, and MMTV-Neu mouse mammary tumors

2015-09-16 | GSE73073 | GEO

Mutation-specific and common phosphotyrosine signatures of KRAS G12D and G13D alleles

Project description:KRAS is one of the most frequently mutated genes across all cancer subtypes. Two of the most frequent oncogenic KRAS mutations observed in patients result in glycine to aspartic acid substitution at either codon 12 (G12D) or 13 (G13D). Although the biochemical differences between these two predominant mutations are not fully understood, distinct clinical features of the resulting tumors suggest involvement of disparate signaling mechanisms. When we compared the global and phosphotyrosine proteomic profiles of isogenic colorectal cancer cell lines bearing either G12D or G13D KRAS mutation, we observed both shared as well as unique signaling events induced by the two KRAS mutations.

2021-06-09 | PXD009843 | Pride

KRAS WT and G12D overexpression RNA-seq

Project description:KRAS is an important oncogene in cancer. Long noncoding RNAs (lncRNAs) have been characterized to be involved in various types of cancer. In this study, we investigated the functions of KRAS-responsive lncRNAs in cancer. We perfomed the RNA-seq to examine the lncRNA expression after overexpession of KRAS WT and G12D in H1299 cells.

2020-12-17 | GSE124627 | GEO

RNA sequencing comparing mouse lung cancer cell lines derived from Kras G12D Trp53 -/- and Kras G12D Trp53 -/- sgMga tumors

Project description:The goal of this study was to compare expression profiles of mouse Kras G12D Trp53 -/- lung cancer cells that have inactivated MGA compared to controls

2020-11-17 | GSE161606 | GEO

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