Proteomics

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SWATH proteomic profiling of prostate cancer cells identifies NUSAP1 as a biomarker of response to Galiellalactone


ABSTRACT: Galiellalactone (GL) is a fungal metabolite that presents antitumor and anti-inflammatory activities in vitro and in vivo. Previous studies have shown that GL targets NF-KB and STAT3 pathways and induces G2/M cell cycle arrest in androgen-insensitive prostate cancer cells. In this study, we show that GL-induced cell cycle arrest is independent of the NF-KB and STAT3 pathways in DU145 and PC-3 cells, and also that GL did not affect cell cycling in androgen-sensitive prostate cancer cell such as LNCaP and 22Rv1 cells. In addition, we showed confluence resistance to GL in DU145 cells. Using a SWATH proteomic approach we identified the down-regulation of Nucleolar and spindle associated protein 1 (NUSAP1) under DU145 confluence and in LNCaP cells. Also, the inhibition of NUSAP1 by siRNAs induced resistance to GL in DU145 cells, suggesting that NUSAP1 may be a target for GL and could be useful as biomarker for responsiveness of the antitumor activity of GL.

INSTRUMENT(S): TripleTOF 5600

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Prostate Gland, Cell Culture

DISEASE(S): Prostate Adenocarcinoma

SUBMITTER: Ignacio Ortea  

LAB HEAD: Ignacio Ortea

PROVIDER: PXD010993 | Pride | 2019-01-14

REPOSITORIES: Pride

Dataset's files

Source:
Action DRS
2015018-all4samples.group Other
20150724-06_2015018-A.wiff Wiff
20150724-06_2015018-A.wiff.scan Wiff
20150724-07_2015018-B.wiff Wiff
20150724-07_2015018-B.wiff.scan Wiff
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Publications

SWATH proteomic profiling of prostate cancer cells identifies NUSAP1 as a potential molecular target for Galiellalactone.

Garrido-Rodríguez Martín M   Ortea Ignacio I   Calzado Marco A MA   Muñoz Eduardo E   García Víctor V  

Journal of proteomics 20181025


Galiellalactone (GL) is a fungal metabolite that presents antitumor and antiinflammatory activities in vitro and in vivo. Previous studies have shown that GL targets NF-κB and STAT3 pathways and induces G<sub>2</sub>/M cell cycle arrest in androgen-insensitive prostate cancer cells. In this study, we show that GL-induced cell cycle arrest is independent of the NF-κB and STAT3 pathways in DU145 and PC-3 cells, and also that GL did not affect cell cycling in androgen-sensitive prostate cancer cell  ...[more]

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