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Efficient Recombinant Parvovirus Production with the Help of Adenovirus-derived Systems
Published on: April 23, 2012
Chromatin structure and gene transcription of recombinant p53 adenovirus vector within host
Duo Ning1, Yuqing Deng1, Simon Zhongyuan Tian1
1Department of Systems Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, China.
Introduction:
The recombinant human p53 adenovirus (Ad-p53) offers a promising approach for cancer therapy, yet its chromatin structure and effects on host chromatin organization and gene expression are not fully understood.
Methods:
In this study, we employed in situ ChIA-PET to investigate the colorectal cancer cell line HCT116 with p53 knockout, comparing them to cells infected with the adenovirus-vector expressing p53. We examined alterations in chromatin interactions and gene expression following treatment with the anti-cancer drug 5-fluorouracil (5-FU).
Results:
Our results indicate that Ad-p53 forms a specific chromatin architecture within the vector and mainly interacts with repressive or inactive regions of host chromatin, without significantly affecting the expression of associated genes. Additionally, Ad-p53 does not affect topologically associating domains (TADs) or A/B compartments in the host genome.
Discussion:
These findings suggest that while Ad-p53 boosts p53 expression, enhancing drug sensitivity without substantially altering host HCT116 chromatin architecture.
