Gene profile of breast cancer tumors with low and high FAK expression
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE53618 | GEO | 2014/02/01
SECONDARY ACCESSION(S): PRJNA232490
REPOSITORIES: GEO
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Project description:The gene expression profiles were identified in breast cancer tumors with different level of FAK three tumors with low FAK expression identified by IHC and 3 tumors with high FAK expression. 2 triple-negative with low and one triple negative with high FAK expression was among these 6 samples
2014-02-01 | E-GEOD-53618 | biostudies-arrayexpress
Project description:Focal adhesion kinase (FAK) is a non-receptor tyrosine kinase that plays an important role in proliferation, motility, adhesion, invasion, angiogenesis, and survival signaling. Focal adhesion kinase has been shown to be overexpressed in many types of tumors, including breast cancer at early stages of tumorigenesis. To study the biological role of FAK in breast tumorigenesis, we used FAKsiRNA to down-regulate FAK in MCF-7 cell lines.
2009-08-17 | GSE11581 | GEO
Project description:Focal adhesion kinase (FAK) is a non-receptor tyrosine kinase that plays an important role in proliferation, motility, adhesion, invasion, angiogenesis, and survival signaling. Focal adhesion kinase has been shown to be overexpressed in many types of tumors, including breast cancer at early stages of tumorigenesis. To study the biological role of FAK in breast tumorigenesis, we used FAKsiRNA to down-regulate FAK in MCF-7 cell lines. Experiment Overall Design: Eight samples were analyzed in MCF-7, MCF-7-Vector, MCF-7 control (luciferase) siRNA and FAKsiRNA#1, FAKsiRNA#2
2009-08-22 | E-GEOD-11581 | biostudies-arrayexpress
Project description:The gene expression profiles were identified in breast cancer tumors with different level of FAK three tumors with low FAK expression identified by IHC and 3 tumors with high FAK expression. 2 triple-negative with low and one triple negative with high FAK expression was among these 6 samples
| S-ECPF-GEOD-53618 | biostudies-other
Project description:Gene copy number changes, cancer stem cell (CSC) increases, and platinum chemotherapy resistance contribute to poor prognosis in patients with recurrent high grade serous ovarian cancer (HGSOC). CSC phenotypes involving Wnt-b-catenin and aldehyde dehydrogenase activities, platinum resistance, and tumor initiating frequency are here associated with spontaneous genetic gains, including genes encoding KRAS, MYC and FAK, in a new murine model of ovarian cancer (KMF). Noncanonical FAK signaling was sufficient to sustain human and KMF tumorsphere proliferation, CSC survival, and platinum resistance. Increased FAK tyrosine phosphorylation occurred in HGSOC patient tumors surviving neo-adjuvant platinum and paclitaxel chemotherapy and platinum resistant tumorspheres acquired FAK dependence for growth. Importantly, combining a pharmacologic FAK inhibitor with platinum overcame chemoresistance and triggered apoptosis in vitro and in vivo. Knockout, rescue, genomic and transcriptomic analyses collectively identified more than 400 genes regulated along a FAK/b-catenin/Myc axis impacting stemness and DNA repair in HGSOC, with 66 genes gained in a majority of Cancer Genome Atlas samples. Together, these results support combinatorial testing of FAK inhibitors for the treatment of recurrent ovarian cancer.
2019-07-01 | GSE129098 | GEO
Project description:Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive cancers with a high level of liver metastasis. Despite substantial advances, resistance to therapy, including gemcitabine, is still a major obstacle to improved progression free survival. Recent studies have indicated that endothelial cell (EC) focal adhesion kinase (FAK) regulates DNA-damaging therapy induced angiocrine factors and chemosensitivity in malignant cells. However, the effect of EC-FAK regulated angiocrine signalling in chemosensitivity of metastatic PDAC remains unexplored. Here, we show that inducible loss of EC-FAK in both orthotopic and spontaneous mouse models of PDAC reduces liver metastasis and improves survival rates in gemcitabine treated, but not untreated, mice, without affecting primary tumour growth, tumour vascularization, blood vessel leakage or early metastatic events. Phosphoproteomics analysis show a downregulation of the MAPK/ RAF/ PAK signalling pathways in gemcitabine treated FAK-depleted ECs compared to gemcitabine treated WT ECs. Moreover, low levels of EC-FAK correlate with increased survival and reduced relapse in gemcitabine treated human PDAC patients, supporting the clinical relevance of our findings. Altogether, we have identified a new role of EC-FAK regulating PDAC liver metastasis upon gemcitabine treatment that impacts on survival.
2023-03-10 | PXD021542 | Pride
Project description:Breast and pancreatic cancers are characterised by profound metabolic changes1,2. Until recently, these changes have been ascribed to their intrinsic genetic profiles2-4. However, the contribution of cancer-associated fibroblasts (CAFs) to cell metabolism has not been fully investigated5. Here, we provide clinical evidence that reduction in stromal Focal Adhesion Kinase (FAK) correlates with reduced overall survival in human breast and pancreatic cancer patients. To model this, we developed FSP-Cre+;FAKfl/fl mice where FAK was deleted in a subpopulation of CAFs. We establish that loss of CAF-FAK is sufficient to enhance tumour growth without affecting desmoplasia in orthotopically injected breast and pancreatic carcinomas. Additionally, deletion of CAF-FAK enhances disease progression in the MMTV-PyMT spontaneous model of breast cancer. Furthermore, despite this pro-tumourigenic effect, a significant reduction in tumour angiogenesis was observed in late-stage tumours, but not early-stage, size-matched tumours in FSP-Cre+;FAKfl/fl mice. This indicates that loss of CAF-FAK is sufficient to reduce malignant cell dependency on blood vessel support suggesting acquired metabolic alterations in cancer cells. Indeed, 18F-FDG-PET imaging and glucose flux analysis revealed enhanced glucose catabolism in early-stage, size-matched tumours in FSP-Cre+;FAKfl/fl mice in vivo. Mechanistically, we demonstrate that conditioned medium from FAK-null CAFs enhances glycolysis and glycolytic capacity in malignant cells. Proteomics and phosphoproteomics analysis reveal enriched cytokine-mediated signalling pathways in FAK-null CAFs and subsequent enrichment of associated phosphopeptides in malignant cells, respectively. Overall, our data uncover a novel mechanism by which cytokines, regulated by CAF-FAK, can promote cancer growth and progression, and identify a new set of CAF-derived targets to interfere with cancer metabolism.
2020-02-18 | PXD008276 | Pride
Project description:The project analyzed 88 breast cancer clinical samples, including lymph node negative and positive primary tumors, lymph node metastases, and healthy tissue as control. All samples were combined with a super-SILAC mix that served as an internal standard for quantification.
2016-06-16 | MSV000079830 | MassIVE
Project description:We sought to identify circulating microRNAs (miRNAs) from blood plasma that could be used as biomarkers to detect breast cancer existing in high-risk benign breast tumors. Plasma samples were collected from patients with early-stage breast cancer (CA), high- (HB), moderate- (MB), and no-risk (Be) benign tumors. The miRNAs we have identified have the potential to develop into a crucial blood-based screening tool to help monitor the development of breast cancer in benign breast tumors.
2023-04-20 | GSE225117 | GEO