Enhanced cardiomyogenic differentiation of P19 embryonal carcinoma stem cells

Jihyun Yang, Seok Jin Ko, Beom Suk Kim, Hyun Seo Kim, Sangheon Park, Doran Hong, Soon Woong Hong, Ji Hyun Choi, Chi Yeon Park, Seung Cheol Choi, Sun Jun Hong, Do Sun Lim

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Background and Objectives: We investigated the effects of different concentrations of serum, 5-azacytidine, and culture time on the cardiomyogenic differentiation of P19 embryonal carcinoma stem cells in the course of developing an efficient protocol for generating the cardiomyogenic lineage. Materials and Methods: P19 cells were plated at a density of 1 × 10 6 cells on 10-cm bacterial dishes for 96 hours in the presence of 1% dimethyl sulfoxide to form embryoid bodies. The embryoid bodies were cultured in medium with 2% or 10% fetal bovine serum for an additional 10 or 15 consecutive days in the presence of 0, 1, or 3 μM 5-azacytidine. Results: Quantitative real-time polymerase chain reaction (PCR) analysis showed that the messenger ribonucleic acid (mRNA) expression of cardiac muscle-specific genes, such as GATA4, α-actin, α-myosin heavy chain, and cardiac troponin T, were significantly higher in the 15-day culture groups than in the 10-day culture groups. Furthermore, the cardiac muscle-specific genes were expressed more in the high-serum groups compared to the low-serum groups regardless of the culture time. Cardiomyogenic differentiation of the P19 cells was most effective in 1 μM 5-aza-cytidine regardless of the serum concentrations. In addition, the stimulation effects of 5-azacytidine on cardiomyogenic differentiation were more significant under low-serum culture conditions compared to high-serum culture conditions. Cardiomyogenic differentiation of P19 cells was further confirmed by immunostaining with cardiac muscle-specific antibodies. Conclusion: Taken together, these results demonstrated that cardiomyogenic differentiation of P19 cells was enhanced by a combination of different experimental factors.

Original languageEnglish
Pages (from-to)198-204
Number of pages7
JournalKorean Circulation Journal
Issue number5
Publication statusPublished - 2009 May


  • Cell differentiation
  • Embryonal carcinoma stem cells
  • Myocytes, cardiac
  • Serum

ASJC Scopus subject areas

  • Internal Medicine
  • Cardiology and Cardiovascular Medicine


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