Proteomic comparison of human embryonic stem cells with their differentiated fibroblasts: Identification of 206 genes targeted by hES cell-specific microRNAs

Zong Yun Tsai, Chi Hsien Chou, Chi Yu Lu, Sher Singh, Sung Liang Yu, Steven Shoei Lung Li

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Human embryonic stem (hES)-T3 (T3ES) cells were spontaneously differentiated into autogeneic fibroblast-like T3DF cells, as feeder cells with the capacity to support the growth of undifferentiated hES cells. The proteomes of undifferentiated T3ES cells and their differentiated T3DF fibroblasts were quantitatively compared. Several heterogeneous nuclear ribonucleoproteins and glycolytic enzymes, including l-lactate dehydrogenase A (M), were found to be abundantly and differentially expressed in T3ES cells and T3DF fibroblasts, respectively. Both miRNA and mRNA profiles from the undifferentiated T3ES cells and their differentiated T3DF fibroblasts had been previously determined. In this investigation, 206 genes were found to be targets of the four hES cell-specific miRNAs of miR-302d, miR-372, miR-200c, and/or miR-367 by using two-fold differential expression and inverse expression levels (highly negative correlations) of miRNAs to their target mRNAs. That YWHAZ (14-3-3 zeta) is a target of miR-302d and miR-372 was further confirmed by proteomic comparison between T3ES cells and their differentiated T3DF fibroblasts. According to GeneOntology analyses, almost 50% of these 206 target proteins are nuclear and are involved in gene transcription. Identifying the target mRNAs of hES cell-specific miRNAs will provide a better understanding of the complex regulatory networks in hES cells. Furthermore, these miRNA-targeted proteins play important roles in differentiation of hES cells and during embryo development.

Original languageEnglish
Pages (from-to)299-306
Number of pages8
JournalKaohsiung Journal of Medical Sciences
Volume27
Issue number8
DOIs
Publication statusPublished - 2011 Aug 1

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MicroRNAs
Proteomics
Fibroblasts
Genes
Messenger RNA
Heterogeneous-Nuclear Ribonucleoproteins
Feeder Cells
Proteome
Nuclear Proteins
Embryonic Development
Human Embryonic Stem Cells
Enzymes
Growth
Proteins

Keywords

  • Fibroblasts
  • Proteomes
  • hESC
  • mRNAs
  • microRNAs

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Proteomic comparison of human embryonic stem cells with their differentiated fibroblasts : Identification of 206 genes targeted by hES cell-specific microRNAs. / Tsai, Zong Yun; Chou, Chi Hsien; Lu, Chi Yu; Singh, Sher; Yu, Sung Liang; Li, Steven Shoei Lung.

In: Kaohsiung Journal of Medical Sciences, Vol. 27, No. 8, 01.08.2011, p. 299-306.

Research output: Contribution to journalArticle

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