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title alternative
RASEFは肺癌の新たな診断マーカー及び治療標的である
creator
Oshita, Hideto
subject
oncogenes
cancer antigen
biomarker
therapeutic target
lungcancer
NDC
Medical sciences
abstract
Genome-wide gene expression profile analyses revealed that Ras and EF-hand domain containing (RASEF) was significantly transactivated in the majority of lung cancers. Transient expression of RASEF promoted cell growth, whereas transfection of siRNA for RASEF to lung cancer cells reduced its expression and resulted in growth suppression of the cancer cells. Immunohistochemical staining using tumor tissue microarrays consisting of 341 archived non-small cell lung cancers revealed the association of strong RASEF positivity with poor prognosis (P = 0.0034 by multivariate analysis). RASEF could bind to extracellular signal-regulated kinase (ERK) 1/2 and appeared to enhance the ERK1/2 signaling. In addition, inhibition of interaction between RASEF and ERK1/2 using cell-permeable peptide that corresponded to the ERK1/2-interacting site of RASEF protein, suppressed growth of lung cancer cells. RASEF may play important roles in lung carcinogenesis, and could be useful as a prognostic biomarker and a target for the development of new molecular therapies.
date of created
2014-11-21
language
eng
nii type
Thesis or Dissertation
HU type
Doctoral Theses
DCMI type
text
format
application/pdf
text version
ETD
rights
Copyright(c) by Author
relation references
Hideto Oshita, Ryohei Nishino, Atsushi Takano, Takashi Fujitomo, Masato Aragaki, Tatsuya Kato, Hirohiko Akiyama, Eiju Tsuchiya, Nobuoki Kohno, Yusuke Nakamura, Yataro Daigo; RASEF is a novel diagnostic biomarker and a therapeutic target for lung cancer; Molecular Cancer Research, Published OnlineFirst May 16, 2013. (doi: 10.1158/1541-7786.MCR-12-0685-T)
relation references URL
http://dx.doi.org/10.1158/1541-7786.MCR-12-0685-T
grantid
甲第6214号
degreeGrantor
広島大学(Hiroshima University)
degreename Ja
博士(医学)
degreename En
Philosophy in Medical Science
degreelevel
doctoral
date of granted
2013-09-05
department
Graduate School of Biomedical Science