Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Paladin, a pseudo-phosphatase overexpressed in colon cancer, is required for actin polymerization and liver metastasis dissemination

ABSTRACT: Colorectal cancer remains a public health issue and most of colon cancer patients succumb to the development of metastases. Using a specific protocol, we identified paladin as a potential colon cancer liver metastases biomarker. We then explored the biological function of paladin in colon cancer cells. We discovered that paladin is required for cell migration and metastasis. We reported that paladin depletion altered the phospho-proteome within colon cancer cells. Thanks to immuno-precipitation experiments, we demonstrated that paladin was interacting with SSH-1, a phosphatase involved in colon cancer metastasis. Finally, we showed that paladin depletion in cancer cells altered the interaction between SSH-1 and actin, which results in a less dynamic actin cytoskeleton. In conclusion, paladin is an under undervalued protein in oncology participating in actin cytoskeleton remodelling and necessary for an efficient cancer cell migration

INSTRUMENT(S): Orbitrap Fusion Lumos

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Permanent Cell Line Cell, Cell Culture

DISEASE(S): Colon Cancer

SUBMITTER: Didier Vertommen

LAB HEAD: Olivier Peulen

PROVIDER: PXD030803 | Pride | 2022-07-27

REPOSITORIES: Pride

ACCESS DATA

Json Xml

Similar Datasets

Pilot Study 13C flux effects when RhoC or RhoA perturbed (13C BCs)

Project description:Rho-GTPases are small GTP-binding proteins that contribute to the epithelial-to-mesenchymal transition by regulating several cellular processes including organization of the actin cytoskeleton, cell motility, transcription, and cell proliferation. Overexpression of RhoC-GTPases (RhoC) in breast cancer has been implicated in poor disease prognosis due to increased cancer cells invasion, migration, and motility, which warranted its consideration as a therapeutic target for inhibiting breast cancer metastasis. Using silencing RNA (siRNA) molecules to knockdown RhoC expression is a promising approach to inhibit breast cancer metastases.

2015-02-11 | ST000282 | MetabolomicsWorkbench

TFAM loss induces nuclear actin assembly upon mDia2 malonylation to promote liver cancer metastasis

Project description:The mechanisms underlying cancer metastasis remain poorly understood. Here, we report that TFAM deficiency rapidly and stably induced spontaneous lung metastasis in mice with liver cancer. Interestingly, unexpected polymerization of nuclear actin was observed in TFAM-knockdown HCC cells when cytoskeleton was examined. Polymerization of nuclear actin is causally linked to the high-metastatic ability of HCC cells by modulating chromatin accessibility and coordinating the expression of genes associated with extracellular matrix remodeling, angiogenesis, and cell migration. Mechanistically, TFAM deficiency blocked the TCA cycle and increased the intracellular malonyl-CoA levels. Malonylation of mDia2, which drives actin assembly, promotes its nuclear translocation. Importantly, inhibition of malonyl-CoA production or nuclear actin polymerization significantly impeded the spread of HCC cells in mice. Moreover, TFAM was significantly downregulated in metastatic HCC tissues and was associated with overall survival and time to tumor recurrence of HCC patients. Taken together, our study connects mitochondria to the metastasis of human cancer via uncovered mitochondria-to-nucleus retrograde signaling, indicating that TFAM may serve as an effective target to block HCC metastasis.

2022-06-23 | MTBLS4307 | MetaboLights

Genomic Profile of Primary Colorectal Cancers and associated Liver Metastases

Project description:Comparison of genomic alterations of primary colorectal cancers with liver metastases of the same patient Keywords: array CGH, colorectal cancer, colon cancer, liver metastasis 21 primary colorectal cancers and 21 matched liver metastases hybridized against sex-matched control pools

2010-07-07 | E-GEOD-10179 | biostudies-arrayexpress

Tubulin Tyrosine Ligase Like 4 (TTLL4) overexpression in breast cancer cells alters exosome biogenesis and promotes brain metastasis

Project description:The survival rate is poor in breast cancer patients with brain metastases. Thus, new concepts for therapeutic approaches are required. During metastasis, the cytoskeleton of cancer cells is highly dynamic and therefore cytoskeleton-associated proteins are interesting targets for tumour therapy.

2021-08-20 | PXD020743 | Pride

Expression Profile of Primary Colorectal Cancers and associated Liver Metastases

Project description:Comparison of expression profiles of primary colorectal cancers with liver metastases of the same patient. Additionally, expression data of normal colon and liver tissue. Abstract of publication will be included upon publication Keywords: expression profiling, colorectal cancer, colon cancer, liver metastasis, normal colonic tissue, normal liver tissue RNA of 18 primary colorectal cancers, 18 matched liver metastases, 7 normal colon epithelium samples and 5 normal liver tissue samples hybridized on Human Sentrix-6 V2 (Illumina)

2010-07-07 | E-GEOD-14297 | biostudies-arrayexpress

Genomic Profile of Primary Colorectal Cancers and associated Liver Metastases

2010-07-07 | GSE10179 | GEO

Expression Profile of Primary Colorectal Cancers and associated Liver Metastases

2010-07-07 | GSE14297 | GEO

Specific extracellular matrix remodeling signature of colon hepatic metastases

Project description:To identify genes implicated in metastatic colonization of the liver in colorectal cancer, we collected pairs of primary tumors and hepatic metastases before chemotherapy in 13 patients. We compared mRNA expression in the pairs of patients to identify genes deregulated during metastatic evolution. We then validated the identified genes using data obtained by different groups. The 33-gene signature was able to classify 87% of hepatic metastases, 98% of primary tumors, 97% of normal colon mucosa, and 95% of normal liver tissues in six datasets obtained using five different microarray platforms. The identified genes are specific to colon cancer and hepatic metastases since other metastatic locations and hepatic metastases originating from breast cancer were not classified by the signature. Gene Ontology term analysis showed that 50% of the genes are implicated in extracellular matrix remodeling, and more precisely in cell adhesion, extracellular matrix organization and angiogenesis. Because of the high efficiency of the signature to classify colon hepatic metastases, the identified genes represent promising targets to develop new therapies that will specifically affect hepatic metastasis microenvironment. 57 samples of patients with stage IV colorectal cancer. We compared using Affymetrix chips gene expression profiles between primary tumors and hepatic metastases

2013-09-01 | E-GEOD-49355 | biostudies-arrayexpress

Specific extracellular matrix remodeling signature of colon hepatic metastases [HG-U133B]

2014-10-15 | E-GEOD-62321 | biostudies-arrayexpress

The invadopodial and cytoskeletal regulator glycine- and cysteine-rich protein 2 induces pro-metastatic matrix metalloproteinase expression in breast cancer cells

Project description:Actin cytoskeleton has multiple functions in cancer cell invasion and metastasis; yet how these functions are coordinated remains unclear. In the cytoplasm, actin is necessary for the formation of specialized membrane protrusions, termed invadopodia, that concentrate and secrete extracellular matrix-degrading enzymes, particularly the matrix metalloproteinases (MMPs), facilitating tumor cell invasion. We recently identified cysteine- and glycine-rich protein 2 (CRP2) as an actin-crosslinking protein whose activity is required for the assembly and elongation of the invadopodium actin backbone. Here, we report that CRP2 is also located in the nucleus of breast cancer cells to induce a complementary pro-metastasis gene expression program mostly related to breast cancer cell invasion and metastasis. We showed in this present study that CRP2 interacts with the transcription factors SRF and GATA3 to regulated the expression of MMP-9 and MMP-13 respectively. Overall, our data indicate that CRP2 act a key mediator of tumor cell invasion.

2023-04-26 | GSE199822 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

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