In vitro gene transfer using human papillomavirus-like particles.

Human Papillomavirus Type16- L1 VLP Production in Insect Cells

  Objective(s):  Infection by high-risk papillomavirus is regarded as the major risk factor in the development of cervical cancer. Recombinant DNA technology allows expression of the L1 major capsid protein of HPV in different expression systems, which has intrinsic capacity to self-assemble into viral-like particles (VLP). VLPS are non-infectious, highly immunogenic and can elicit neutralizing...

CTL Responses to a DNA Vaccine Encod-ing E7 Gene of Human Papillomavirus Type 16 from an Iranian Isolate

Background: Cervical cancer is the most prevalent tumor in developing countries and the second most frequent cancer among female population worldwide. Specific human papillomaviruses and, most notably, HPV types 16 and 18 are recognized as being caus-ally associated with cervical carcinomas. The early HPV type 16 genes, E6 and E7, di-rectly participate in the in vitro transformation of primary ...

Self-assembly of in vitro-translated human papillomavirus type 16 L1 capsid protein into virus-like particles and antigenic reactivity of the protein.

The human papillomavirus type 16 (HPV-16) L1 capsid protein is the major component of the HPV virion. We prepared L1 protein of HPV-16 in a cell-free system. The L1 gene was cloned in an expression plasmid and transcribed and translated in vitro in a rabbit reticulocyte lysate. The expressed protein had the molecular mass (55 kDa) expected for the L1 protein, and it assembled into virus-like pa...

Codon optimization of the human papillomavirus 11 (HPV 11) L1 gene leads to increased gene expression and formation of virus-like particles in mammalian epithelial cells.

The 505 amino acid L1 protein of the human papillomavirus type 11 (HPV 11) is the major capsid polypeptide that has been shown to self-assemble into virus-like particles (VLPs) in vivo and in vitro. While L1 is essential for viral infection, expression studies in mammalian cells have been hampered by different codon preference between the virus and its host. To optimize L1 gene expression in ma...

Gene Expression Quantification of Toll like Receptors 2, 4 and Co-molecules in Human Glioblastoma Cell Line (U87-MG): Toward a New In vitro Model of Inflammation