Project description:We report that the adaptor protein, paxillin, regulates some androgen responsive genes in the castration sensitive prostate cancer cell line, LNCaP.

2019-08-01 | GSE131726 | GEO

Paxillin regulates genomic networks in prostate cancer [PC3]

Project description:We report that the adaptor protein, paxillin, regulates some proliferative and apoptotic genes in the castration resistant prostate cancer cell line, PC3.

2019-08-01 | GSE131730 | GEO

Paxillin regulates genomic networks in prostate cancer [C4-2]

Project description:We report that the adaptor protein, paxillin, regulates some androgen responsive genes in the castration resistant prostate cancer cell line,C4-2.

2019-08-01 | GSE131728 | GEO

Paxillin regulates genomic networks in prostate cancer

Project description:This SuperSeries is composed of the SubSeries listed below.

2019-08-01 | GSE131731 | GEO

Paxillin regulated genomic networks in prostate cancer.

Project description: Not available

| S-EPMC6802295 | biostudies-literature

Endogenous androgen receptor proteomic profiling reveals genomic subcomplex involved in prostate tumorigenesis

Project description:Androgen receptor (AR) is a key player in prostate cancer development and progression. Here we applied immunoprecipitation mass spectrometry of endogenous AR in LNCaP cells to identify components of the AR transcriptional complex. In total, 66 known and novel AR interactors were identified in the presence of synthetic androgen, most of which were critical for AR-driven prostate cancer cell proliferation. A subset of AR interactors required for LNCaP proliferation were profiled using chromatin immunoprecipitation assays followed by sequencing, identifying distinct genomic subcomplexes of AR interaction partners. Interestingly, three major subgroups of genomic subcomplexes were identified, where selective gain of function for AR genomic action in tumorigenesis was found, dictated by FOXA1 and HOXB13. In summary, by combining proteomic and genomic approaches we reveal subclasses of AR transcriptional complexes, differentiating normal AR behavior from the oncogenic state. In this process, the expression of AR interactors has key roles by reprogramming the AR cistrome and interactome in a genomic location-specific manner.

2017-10-27 | PXD008056 | Pride

Phenotype screens of murine pancreatic cancer identify a Tgfa-Ccl2-paxillin axis driving human-like neural invasion

Project description:Solid cancers like pancreatic cancer (PDAC) frequently exploit nerves for rapid dissemination. This neural invasion (NI) is an independent prognostic factor in PDAC, but insufficiently modelled in genetically-engineered mouse models (GEMM) of PDAC.Here, we systematically screened for human-like NI in Europe’s largest repository of GEMM of PDAC comprising 295 different genotypes. This phenotype screen uncovered two GEMM of PDAC with human-like NI, which are both characterized by pancreas-specific overexpression of transforming-growth-factor-alpha (TGFa) and conditional depletion of p53. Mechanistically, cancer-cell-derived TGFa upregulated CCL2 secretion from sensory neurons, which induced hyperphosphorylation of the cytoskeletal protein paxillin via CCR4 on cancer cells. This activated the cancer migration machinery and filopodia formation toward neurons. Disrupting CCR4 or paxillin activity limited NI, and dampened tumor size and tumor innervation. In human PDAC, phospho-paxillin and TGFa-expression constituted strong prognostic factors. Therefore, TGFa-CCL2-CCR4-p-paxillin axis is a clinically actionable target for constraining NI and tumor progression in PDAC.

2023-10-11 | GSE245126 | GEO

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