Ovine pulmonary carcinoma (OPC) is a contagious pulmonary neoplasia with a suspected retroviral etiology. The major core protein (P27) of the putative OPC virus cross-reacts with antibodies to P27 of the Mason-Pfizer monkey virus (MPMV), a type-D retrovirus, This serological reactivity serves as the only accepted biological marker for OPC, In order to make a useful reagent for the detection of the OPC marker for serodiagnosis and epidemiological studies, the MPMV-P27 coding region was cloned and expressed in Escherichia coli. Gel purified recombinant MPMV-P27 protein was used to develop an immunoassay, This recombinant enzyme-linked immunosorbent assay (ELISA) was then used to screen 223 sera from US sheep and 176 sera from Italian sheep. In this study, we found: (1) a high prevalence of infection with the putative OPC retrovirus in sheep with chronic pneumonia; (2) a subclinical infection with OPC virus may be more common in US sheep than indicated by the rare recorded occurrence of pulmonary carcinoma; (3) an apparent association between ovine lentivirus (OLV) and OPC infection.
|Autori:||KWANG J; KEEN J; ROSATI S; TOLARI F|
|Titolo:||DEVELOPMENT AND APPLICATION OF AN ANTIBODY ELISA FOR THE MARKER PROTEIN OF OVINE PULMONARY-CARCINOMA|
|Anno del prodotto:||1995|
|Digital Object Identifier (DOI):||10.1016/0165-2427(94)05409-L|
|Appare nelle tipologie:||1.1 Articolo in rivista|