概要：The MRI-H196 cell line, derived from HPV16-positive cervical carcinoma, showcases a distinctive HPV16 transcript expression profile, marked by the presence of the full-length L1 transcript and the notable absence of the E5 full-length RNA.
This expression pattern is indicative of HPV16 genome integration within the cell line, resulting in the disruption of the E2 region and rearrangement of the L1 DNA sequence.
The lack of E5 full-length RNA expression implies that the transcription of full-length early RNAs, which typically conclude at the polyadenylation signal downstream of the E5 open reading frame (ORF), is inhibited in MRI-H196 cells.
This phenomenon points to the integrated state of HPV16 genomes, where the critical E2 region for viral replication and transcription regulation is often disrupted during integration into the host genome, thereby potentially influencing the expression of downstream genes, such as E5.
