Papillomaviridae Flashcards
papilloma means
(Papilla – wart, oma – tumor)
Benign tumours can change to malignant carcinomas
papillomatosis is…
papillary projections of the epidermis (warts)
papillomatosis affects which animals
canine
humans
bovine
horse
Equine papillomatosis
bovine serotypes can cause horse sacaroids on head and nose, transmission by bit, twitch
canine papillomatosis
epulis - in oral mucosa
human papillomatosis 1-63
skin papillomas - verruca vulgaris (common papillomas)
genital papillomas
- juvenile laryngeal cacinomas
- cervical intraepithelial neoplasia
- vulval, penile carcinomas
(carcinoma: cancer in epithelial tissue of skin)
bovine papillomatosis 1-13
on neck and back body
latency of papilloma virus
episomal latency
- using genetic episomes during latency
other animals that can be infected
sheep, roe deer, elephant, elk, possum, rabbit, turtle, parrot
morphology
non-enveloped, icosahedral capsid, circular dsDNA=more resistant, strong resistance
replication
baltimore 1
replication in the nucleus by cellular transcriptase
virion release by cell lysis
transmission
contact/sex
propegation
in keratinized cells (skin), not in other tissues!
antigenic properties
good antigens (hide from immune system)
diagnosis
warts appear