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Updated: Jun 1, 2026

In situ Subcellular Fractionation of Adherent and Non-adherent Mammalian Cells
Published on: July 23, 2010
Human papillomavirus type-16 DNA integration in nuclear matrix and chromosome scaffold associated DNA in a
1CHINESE UNIV HONG KONG,DEPT ANAT,SHA TIN,HONG KONG. CHINESE UNIV HONG KONG,DEPT PHYSIOL,SHA TIN,HONG KONG. BEIJING UNIV,DEPT CELL BIOL,BEIJING,PEOPLES R CHINA.
Abstract:
MARs (matrix attachment region) and SARs (scaffold attachment region) are fragments of DNA that associated with nuclear matrix and chromosome scaffold even after extensive removal of most of the nuclear proteins and chromatin. The present study showed the association of human papillomavirus type 16 DNA with these fragments by polymerase chain reaction in a cervical carcinoma cell line, CC3/CUHK3. This finding proposed an alternative evidence for the elevated transcription rate of the viral genome in transformed cells as nuclear matrix has been proposed to be sites of DNA replication and transcription.
Insights
Matrix attachment regions (MARs) and scaffold attachment regions (SARs) bind human papillomavirus type 16 DNA in cervical cancer cells. This association suggests MARs/SARs may enhance viral transcription in transformed cells.
Area of Science:
- Molecular Biology
- Virology
- Cell Biology
Background:
- Matrix attachment regions (MARs) and scaffold attachment regions (SARs) are DNA elements that anchor chromatin to the nuclear matrix and scaffold.
- These regions are implicated in DNA replication and transcription regulation.
- Human papillomavirus (HPV) type 16 is a key etiological agent in cervical carcinoma.
Purpose of the Study:
- To investigate the association of HPV type 16 DNA with MARs and SARs.
- To explore the potential role of this association in viral gene expression within cervical cancer cells.
Main Methods:
- Polymerase chain reaction (PCR) was employed to detect HPV DNA.
- The study utilized the CC3/CUHK3 cervical carcinoma cell line.
Main Results:
- The study demonstrated the presence of HPV type 16 DNA associated with MARs and SARs in the CC3/CUHK3 cell line.
- This physical association was confirmed through molecular techniques.
Conclusions:
- The findings provide evidence for the interaction between HPV type 16 DNA and host cell nuclear matrix/scaffold attachment regions.
- This association may contribute to the elevated transcription rates of the viral genome observed in transformed cervical cells.
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