Histone Deacetylase Expression in Glioblastomas
Author Information
Author(s): Lucio-Eterovic Agda KB, Cortez Maria AA, Valera Elvis T, Motta Fabio JN, Queiroz Rosane GP, Machado Helio R, Carlotti Carlos G Jr, Neder Luciano, Scrideli Carlos A, Tone Luiz G
Primary Institution: Department of Pediatrics, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Brazil
Hypothesis
The study aims to evaluate and compare mRNA and protein levels of class I, II, and IV HDACs in low-grade and high-grade astrocytomas and normal brain tissue.
Conclusion
The study establishes a negative correlation between HDAC gene expression and glioma grade, suggesting that class II and IV HDACs might play an important role in glioma malignancy.
Supporting Evidence
- mRNA levels of class II and IV HDACs were downregulated in glioblastomas compared to low-grade astrocytomas and normal brain tissue.
- The protein levels of class II HDAC9 were lower in high-grade astrocytomas than in low-grade astrocytomas and normal brain tissue.
- Histone H3 was more acetylated in glioblastomas than normal brain tissue.
Takeaway
This study looked at how certain genes related to cancer behave in brain tumors, finding that some genes are less active in the most serious type of brain cancer.
Methodology
The study analyzed mRNA and protein levels of HDACs in tumor samples using quantitative real-time PCR and western blotting.
Limitations
The study did not evaluate the effect of HDAC inhibitors on glioma treatment.
Participant Demographics
43 patients (19 men and 24 women) aged 1.3 to 79 years, with a mean age of 24.6 years.
Statistical Information
P-Value
< 0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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