Novel variants of Oct-3/4 gene expressed in mouse somatic cells

Nobuhiko Mizuno, Mitsuko Kosaka

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

It has been suggested that Oct-3/4 may regulate self-renewal in somatic stem cells, as it does in embryonic stem cells. However, recent reports raise the possibility that detection of human Oct-3/4 expression by RT-PCR is prone to artifacts generated by pseudogene transcripts and argue against a role for Oct-3/4 in somatic cells. In this study, we clarified Oct-3/4 expression in mouse somatic tissues using designed PCR primers, which can exclude amplification of its pseudogenes. We found that novel alternative transcripts are indeed expressed in somatic tissues, rather than the normal length transcripts in germline and ES cells. The alternative transcripts indicate the expression of two kinds of truncated proteins. Furthermore, we determined novel promoter regions that are sufficient for the expression of Oct-3/4 transcript variants in somatic cells. These findings provide new insights into the postnatal role of Oct-3/4 in somatic tissues.

Original languageEnglish
Pages (from-to)30997-31004
Number of pages8
JournalJournal of Biological Chemistry
Volume283
Issue number45
DOIs
Publication statusPublished - Nov 7 2008

Fingerprint

Pseudogenes
Genes
Tissue
Stem cells
Polymerase Chain Reaction
Adult Stem Cells
Embryonic Stem Cells
Genetic Promoter Regions
Artifacts
Amplification
Proteins

ASJC Scopus subject areas

  • Biochemistry
  • Cell Biology
  • Molecular Biology

Cite this

Novel variants of Oct-3/4 gene expressed in mouse somatic cells. / Mizuno, Nobuhiko; Kosaka, Mitsuko.

In: Journal of Biological Chemistry, Vol. 283, No. 45, 07.11.2008, p. 30997-31004.

Research output: Contribution to journalArticle

@article{f64100ada9ae46d29fc7f7ffb27d39cd,
title = "Novel variants of Oct-3/4 gene expressed in mouse somatic cells",
abstract = "It has been suggested that Oct-3/4 may regulate self-renewal in somatic stem cells, as it does in embryonic stem cells. However, recent reports raise the possibility that detection of human Oct-3/4 expression by RT-PCR is prone to artifacts generated by pseudogene transcripts and argue against a role for Oct-3/4 in somatic cells. In this study, we clarified Oct-3/4 expression in mouse somatic tissues using designed PCR primers, which can exclude amplification of its pseudogenes. We found that novel alternative transcripts are indeed expressed in somatic tissues, rather than the normal length transcripts in germline and ES cells. The alternative transcripts indicate the expression of two kinds of truncated proteins. Furthermore, we determined novel promoter regions that are sufficient for the expression of Oct-3/4 transcript variants in somatic cells. These findings provide new insights into the postnatal role of Oct-3/4 in somatic tissues.",
author = "Nobuhiko Mizuno and Mitsuko Kosaka",
year = "2008",
month = "11",
day = "7",
doi = "10.1074/jbc.M802992200",
language = "English",
volume = "283",
pages = "30997--31004",
journal = "Journal of Biological Chemistry",
issn = "0021-9258",
publisher = "American Society for Biochemistry and Molecular Biology Inc.",
number = "45",

}

TY - JOUR

T1 - Novel variants of Oct-3/4 gene expressed in mouse somatic cells

AU - Mizuno, Nobuhiko

AU - Kosaka, Mitsuko

PY - 2008/11/7

Y1 - 2008/11/7

N2 - It has been suggested that Oct-3/4 may regulate self-renewal in somatic stem cells, as it does in embryonic stem cells. However, recent reports raise the possibility that detection of human Oct-3/4 expression by RT-PCR is prone to artifacts generated by pseudogene transcripts and argue against a role for Oct-3/4 in somatic cells. In this study, we clarified Oct-3/4 expression in mouse somatic tissues using designed PCR primers, which can exclude amplification of its pseudogenes. We found that novel alternative transcripts are indeed expressed in somatic tissues, rather than the normal length transcripts in germline and ES cells. The alternative transcripts indicate the expression of two kinds of truncated proteins. Furthermore, we determined novel promoter regions that are sufficient for the expression of Oct-3/4 transcript variants in somatic cells. These findings provide new insights into the postnatal role of Oct-3/4 in somatic tissues.

AB - It has been suggested that Oct-3/4 may regulate self-renewal in somatic stem cells, as it does in embryonic stem cells. However, recent reports raise the possibility that detection of human Oct-3/4 expression by RT-PCR is prone to artifacts generated by pseudogene transcripts and argue against a role for Oct-3/4 in somatic cells. In this study, we clarified Oct-3/4 expression in mouse somatic tissues using designed PCR primers, which can exclude amplification of its pseudogenes. We found that novel alternative transcripts are indeed expressed in somatic tissues, rather than the normal length transcripts in germline and ES cells. The alternative transcripts indicate the expression of two kinds of truncated proteins. Furthermore, we determined novel promoter regions that are sufficient for the expression of Oct-3/4 transcript variants in somatic cells. These findings provide new insights into the postnatal role of Oct-3/4 in somatic tissues.

UR - http://www.scopus.com/inward/record.url?scp=57649174635&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57649174635&partnerID=8YFLogxK

U2 - 10.1074/jbc.M802992200

DO - 10.1074/jbc.M802992200

M3 - Article

VL - 283

SP - 30997

EP - 31004

JO - Journal of Biological Chemistry

JF - Journal of Biological Chemistry

SN - 0021-9258

IS - 45

ER -