title: Particles resembling C-type oncornaviruses in normal rat prostate.
abstract: A large number of particles resembling oncornaviruses were observed in the ventral lobe of a normal rat prostate. The particles were seen budding into the intercellular spaces of the epithelial lumen cells. They exhibited features morphologically similar to immature C-type particles, with an electron-lucent center and a diameter of approximately 100 nm. Neither intracellular A-type particles nor mature C-type particles were observed. This is the first report of particles resembling oncornaviruses in normal rat prostatic tissue.
mesh_terms: D000818:Animals; D007181:Inclusion Bodies, Viral; D008297:Male; D008854:Microscopy, Electron; D011467:Prostate / Q000382:microbiology* / Q000648:ultrastructure; D051381:Rats; D012190:Retroviridae / Q000648:ultrastructure*