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Altered transcriptional regulatory proteins in glioblastoma and YBX1 as a potential regulator of tumor invasion.

Abstract：

:We have studied differentially regulated nuclear proteome of the clinical tissue specimens of glioblastoma (GBM, WHO Grade IV) and lower grades of gliomas (Grade II and III) using high resolution mass spectrometry- based quantitative proteomics approach. The results showed altered expression of many regulatory proteins from the nucleus such as DNA binding proteins, transcription and post transcriptional processing factors and also included enrichment of nuclear proteins that are targets of granzyme signaling - an immune surveillance pathway. Protein - protein interaction network analysis using integrated proteomics and transcriptomics data of transcription factors and proteins for cell invasion process (drawn from another GBM dataset) revealed YBX1, a ubiquitous RNA and DNA-binding protein and a transcription factor, as a key interactor of major cell invasion-associated proteins from GBM. To verify the regulatory link between them, the co-expression of YBX1 and six of the interacting proteins (EGFR, MAPK1, CD44, SOX2, TNC and MMP13) involved in cell invasion network was examined by immunohistochemistry on tissue micro arrays. Our analysis suggests YBX1 as a potential regulator of these key molecules involved in tumor invasion and thus as a promising target for development of new therapeutic strategies for GBM.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Gupta MK,Polisetty RV,Sharma R,Ganesh RA,Gowda H,Purohit AK,Ankathi P,Prasad K,Mariswamappa K,Lakshmikantha A,Uppin MS,Sundaram C,Gautam P,Sirdeshmukh R

doi

10.1038/s41598-019-47360-9

subject

Has Abstract

pub_date

2019-07-29 00:00:00

pages

10986

issue

1

issn

2045-2322

pii

10.1038/s41598-019-47360-9

journal_volume

9

pub_type

杂志文章

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