Role of post-translational modification of the Y box binding protein 1 in human cancers

Lakshmi Prabhu, Antja Voy Hartley, Matthew Martin, Fadumo Warsame, Emily Sun, Tao Lu

Research output: Contribution to journalReview article

6 Citations (Scopus)

Abstract

Y box binding protein-1 (YBX1) belongs to a DNA- and RNA-binding family of transcription factors, containing the highly conserved cold shock domain (CSD). YBX1 is involved in a number of cellular functions including transcription, translation, DNA damage repair etc., and it is upregulated during times of environmental stress. YBX1 is localized in both the cytoplasm and the nucleus. There, its nuclear translocation is observed in a number of cancers and is associated with poor prognosis and disease progression. Additionally, YBX1 expression is upregulated in a variety of cancers, pointing towards its role as a potential oncogene. Under certain circumstances, YBX1 also promotes the expression of multidrug resistance 1 (MDR1) gene, which is involved in the development of drug resistance. Thus, it is critical to understand the mechanism of YBX1 regulation and its downstream effects on promoting cancer development. A number of recent studies have highlighted the mechanisms of YBX1 regulation. Mass spectrometric analyses have reported several post-translational modifications that possibly play an important role in modulating YBX1 function. Phosphorylation is the most widely occurring post-translational modification in YBX1. In vivo analyses of sites like S102 and more recently, S165 illustrate the relationship of post-translational regulation of YBX1 in promoting cell proliferation and tumor growth. This review provides a comprehensive and up-to-date account of post-translational modifications identified in YBX1. This knowledge is a key in allowing us to better understand the mechanism of YBX1 regulation, which will aid in development of novel therapeutic strategies to target YBX1 in many types of cancer in the future.

Original languageEnglish (US)
Pages (from-to)240-246
Number of pages7
JournalGenes and Diseases
Volume2
Issue number3
DOIs
StatePublished - Sep 1 2015

Fingerprint

Y-Box-Binding Protein 1
Post Translational Protein Processing
Neoplasms
human YBX1 protein
MDR Genes
Phosphorylation
DNA
Cell proliferation

Keywords

  • Cancer
  • Cold shock domain
  • Phosphorylation
  • Post-translational modification
  • Y box binding protein 1

ASJC Scopus subject areas

  • Biochemistry
  • Cell Biology
  • Molecular Biology
  • Genetics(clinical)

Cite this

Role of post-translational modification of the Y box binding protein 1 in human cancers. / Prabhu, Lakshmi; Hartley, Antja Voy; Martin, Matthew; Warsame, Fadumo; Sun, Emily; Lu, Tao.

In: Genes and Diseases, Vol. 2, No. 3, 01.09.2015, p. 240-246.

Research output: Contribution to journalReview article

Prabhu, Lakshmi ; Hartley, Antja Voy ; Martin, Matthew ; Warsame, Fadumo ; Sun, Emily ; Lu, Tao. / Role of post-translational modification of the Y box binding protein 1 in human cancers. In: Genes and Diseases. 2015 ; Vol. 2, No. 3. pp. 240-246.
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