Nordihydroguaiaretic acid inhibits growth of cervical cancer SiHa cells by up-regulating p21

  • Authors:
    • Peng Gao
    • Fei Zhai
    • Lei Guan
    • Jie Zheng
  • View Affiliations

  • Published online on: November 10, 2010     https://doi.org/10.3892/ol.2010.205
  • Pages: 123-128
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Nordihydroguaiaretic acid (NDGA) and its derivatives possess anti-cancer effects on various types of cancer via the induction of apoptosis or cell cycle arrest. This study proved that NDGA inhibited cervical cancer SiHa cell growth and induced cell cycle arrest at the G1 phase, which may be a consequence of cell cycle kinase inhibitor p21 induction. NDGA promoted acetylation of histone H3 in total and p21 gene-associated chromatin. This effect is gene selective, since NDGA has no impact on the p27 gene. NDGA also inhibited HPV-16 E6 gene transcription, which in turn resulted in the restoration of p53 protein levels. The silencing mediator for retinoid and thyroid hormone receptors (SMRT) is a key component of the HDAC3-HDAC4-N-CoR/SMRT complex. We found that NDGA significantly inhibited the transcription of SMRT, which, together with p53, may aid in the detection of the increase of histone H3 acetylation within the p21 gene. Our results suggest that NDGA induces p21 transcription by selectively elevating histone H3 acetylation associated with p21 gene and p53 protein levels via the inhibition of HPV-16 E6 expression.
View Figures
View References

Related Articles

Journal Cover

January-February 2011
Volume 2 Issue 1

Print ISSN: 1792-1074
Online ISSN:1792-1082

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Gao P, Zhai F, Guan L and Zheng J: Nordihydroguaiaretic acid inhibits growth of cervical cancer SiHa cells by up-regulating p21. Oncol Lett 2: 123-128, 2011
APA
Gao, P., Zhai, F., Guan, L., & Zheng, J. (2011). Nordihydroguaiaretic acid inhibits growth of cervical cancer SiHa cells by up-regulating p21. Oncology Letters, 2, 123-128. https://doi.org/10.3892/ol.2010.205
MLA
Gao, P., Zhai, F., Guan, L., Zheng, J."Nordihydroguaiaretic acid inhibits growth of cervical cancer SiHa cells by up-regulating p21". Oncology Letters 2.1 (2011): 123-128.
Chicago
Gao, P., Zhai, F., Guan, L., Zheng, J."Nordihydroguaiaretic acid inhibits growth of cervical cancer SiHa cells by up-regulating p21". Oncology Letters 2, no. 1 (2011): 123-128. https://doi.org/10.3892/ol.2010.205