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RET overexpression leads to increased brain metastatic competency in luminal breast cancer

ABSTRACT: RET overexpression leads to increased brain metastatic competency in luminal breast cancer

PROVIDER: PRJNA987983 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25040741_1.fastq.gz	Fastqsanger.gz
	SRR25040741_2.fastq.gz	Fastqsanger.gz
	SRR25040742_1.fastq.gz	Fastqsanger.gz
	SRR25040742_2.fastq.gz	Fastqsanger.gz
	SRR25040743_1.fastq.gz	Fastqsanger.gz

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RET overexpression leads to increased brain metastatic competency in luminal breast cancer patients

Project description:RET overexpression leads to increased brain metastatic competency in luminal breast cancer patients

| PRJNA1115143 | ENA

RET overexpression leads to increased brain metastatic competency in luminal breast cancer

Project description:In the present study we aimed to explore the role of tyrosine kinase receptor, RET, in promoting breast cancer brain metastasis. Using patient-derived brain metastatic models, we found RET significantly enriched in brain metastasis originating from estrogen receptor positive breast cancer where it played a key role in promoting cancer cell adhesion, survival, and outgrowth in the brain.

2024-06-25 | GSE235886 | GEO

RET overexpression leads to increased brain metastatic competency in luminal breast cancer patients

Project description:Breast cancer brain metastasis is a rising occurrence, necessitating a better understanding of the mechanisms involved for effective management. Breast cancer brain metastases diverge significantly from the primary tumor, with gains in kinase and concomitant losses of steroid signaling observed. In this study, we explored the role of the kinase receptor RET in promoting breast cancer brain metastasis and provide a rationale for targeting the receptor in this patient cohort. Here, exome capture RNA sequencing data is deposited as sequencing batch corrected log2 transformed trimmed M of means (TMM) normalised counts per million (CPM) (log2(TMM-CPM +1) gene expression values for the patients described in this study (n=19,622 protein coding genes; N=16 tumour samples).

2024-06-25 | GSE268217 | GEO

Loss of RET promotes mesenchymal identity in neuroblastoma cells

Project description:Aberrant activation of Anaplastic Lymphoma Kinase (ALK) drives neuroblastoma (NB). Previous work has identified the RET receptor tyrosine kinase (RTK) as a downstream target of ALK activity in NB models. We show here that ALK activation in response to ALKAL2 ligand results in the rapid phosphorylation of RET in NB cells, providing additional insight into the contribution of RET to the ALK driven gene signature in NB. To further address the role of RET in NB, RET knock-out (KO) SK-N-AS cells were generated by CRISPR/Cas9 genome engineering. Gene expression analysis of RET KO NB cells identified a reprogramming of NB cells to a mesenchymal (MES) phenotype that was characterized by increased migration and upregulation of the AXL and MET RTKs as well as integrins and extracellular matrix components. Strikingly, the upregulation of AXL in the absence of RET reflects the development timeline observed in the neural crest as progenitor cells undergo differentiation during embryonic development. Together, these findings suggest that a MES phenotype is promoted in mesenchymal NB cells in the absence of RET, reflective of a less differentiated developmental status.

2021-09-10 | PXD024551 | Pride

RET Kinase Inhibition in Neuroendocrine Prostate Cancer, part 2

Project description:Increased treatment of metastatic castration resistant prostate cancer (mCRPC) with second-generation anti-androgen therapies (ADT) has coincided with a greater incidence of lethal, aggressive variant prostate cancer (AVPC) tumors that have lost androgen receptor (AR) signaling. AVPC tumors may also express neuroendocrine markers, termed neuroendocrine prostate cancer (NEPC). Recent evidence suggests kinase signaling may be an important driver of NEPC. To identify targetable kinases in NEPC, we performed global phosphoproteomics comparing AR-negative to AR-positive prostate cancer cell lines and identified multiple altered signaling pathways, including enrichment of RET kinase activity in the AR-negative cell lines. Clinical NEPC and NEPC patient derived xenografts displayed upregulated RET transcript and RET pathway activity. Pharmacologically inhibiting RET kinase in NEPC models dramatically reduced tumor growth and cell viability in mouse and human NEPC models. Our results suggest that targeting RET in NEPC tumors with high RET expression may be a novel treatment option.

2020-05-29 | PXD012971 | Pride

RET Kinase Inhibition in Neuroendocrine Prostate Cancer, part 1

2020-05-29 | PXD012970 | Pride

RNA-seq of RET-aberrant cancer cell lines treated with RET-TKI selpercatinib

Project description:RET-aberrant cancer discovered as a relevant targetable oncogene in several types of tumors, whose inhibitors have marked efficacy. However, some of patients with RET-aberrant cancer are insensitive to RET- tyrosine kinase inhibitors (TKIs) and are clinically non-responders. Recently, drug-tolerant mechanisms have been gaining attention as targets for initial therapies aimed at overcoming drug resistance. However, the underlying mechanisms of drug-tolerant cells emergence treated with RET-TKIs derived from RET-aberrant cancer cells remains unknown. In this study, HER3 signal activity through YAP1 was led to maintaining cell survival and inducing the emergence of cells tolerant to RET-TKIs selpercatinib and pralsetinib in high YAP1 expressed RET- rearranged cancer cells. These results suggested that YAP1-HER3 axis plays pivotal roles for cell survival under an exposure with RET-TKIs in the intrinsic resistance to RET-TKIs and the emergence of tolerant cells by RET-TKIs in YAP1 expressed RET-aberrant cancer, suggesting that YAP1/HER3 inhibition and RET-TKIs is a highly potent combination for initial treatment.

2024-09-30 | GSE261830 | GEO

Stabilization competency signature

Project description:Comparison of gene expresion profile of 4 SC clones and 4 SI clones at different time points defined a stabilization competency signiture required for successful reprogramming mRNA profilling 4 SI clones at 5 time points, 4 SC clones at 6 time points, and 3 feeder samples.

2013-01-01 | E-GEOD-42100 | biostudies-arrayexpress

RET fusion genes, BCR-RET and FGFR1OP-RET, are associated with chronic myelomonocytic leukemia, display sensitivity to Sorafenib, an inhibitor of tyrosine-kinase activity and enhance monocytic differentiation

Project description:Myeloproliferative neoplasms are frequently associated with aberrant constitutive tyrosine kinase (TK) activity resulting from point mutations or chimaeric fusion genes, such as BCR ABL1 or JAK2 V617F. We report here for the first time in hematological malignancies, two novel fusion genes involving the TK RET, BCR-RET and FGFR1OP-RET, in chronic myelo monocytic leukemia (CMML) cases. The two RET fusion genes lead to the aberrant activation of RET, are able to transform hematopoietic cells and skew the hematopoietic differentiation program towards the monocytic/macrophage lineage. We also report that the BCR-RET fusion protein is insensitive to Imatinib but sensitive to Sorafenib in vivo. CMML is an hematopoietic malignancy associated with the frequent activation of the RAS pathway. The RET fusion genes seems to constitutively mimic the same signaling pathway than RAS mutations. Overall, the RET fusion genes behaviors in the monocytic lineage underlie the role of the normal RET TK activity during the physiological monocytic differentiation. We analysed BAF/3 cells infected by BCR-RET, FGFR1OP-RET or BCR-ABL1P210 fusion genes retroviruses and sorted out using EGFP fluorescence, with Affymetrix GeneChip MouseGene 1.0 ST platform.

2012-01-06 | E-GEOD-34900 | biostudies-arrayexpress

Stabilization competency signature

Project description:Comparison of gene expresion profile of 4 SC clones and 4 SI clones at different time points defined a stabilization competency signiture required for successful reprogramming

2013-01-01 | GSE42100 | GEO

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