PMID- 11199165 OWN - NLM STAT- MEDLINE DCOM- 20010329 LR - 20170214 IS - 0300-9858 (Print) IS - 0300-9858 (Linking) VI - 38 IP - 1 DP - 2001 Jan TI - Evidence for the localization of porcine reproductive and respiratory syndrome virus (PRRSV) antigen and RNA in ovarian follicles in gilts. PG - 58-66 AB - The pathogenesis of porcine reproductive and respiratory syndrome virus (PRRSV) infection in ovary was studied in sexually mature, cycling, nonsynchronized gilts infected with the PRRSV 16244B, a virulent field strain. Previous studies have shown that PRRSV can be isolated from ovaries and is transplacentally passed from gilts to the fetuses. The cause of infertility following PRRSV infection is not known. In this study, we identified the tropism of PRRSV in ovarian tissue from experimentally infected gilts in samples collected between 7 and 21 days postinfection (DPI). Tissues were collected and examined by virus isolation, in situ hybridization (ISH), immunohistochemistry (IHC), and double labeling to identify PRRSV-infected cell types. PRRSV was isolated in ovarian follicles at 7 days DPI. The IHC and ISH indicated that PRRSV-positive cells in ovaries were predominantly macrophages, which were numerous in atretic follicles. No evidence of infection and/or perpetuation of PRRSV in ova was observed, indicating that the female gonad is an unlikely site of persistence. No alteration of the normal ovarian architecture that would support a possible role of PRRSV infection in porcine female infertility was observed. FAU - Sur, J H AU - Sur JH AD - Department of Veterinary and Biomedical Sciences, University of Nebraska-Lincoln 68583-0905, USA. FAU - Doster, A R AU - Doster AR FAU - Galeota, J A AU - Galeota JA FAU - Osorio, F A AU - Osorio FA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - Vet Pathol JT - Veterinary pathology JID - 0312020 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antigens, Viral) RN - 0 (DNA Probes) RN - 0 (DNA, Viral) RN - 0 (Proliferating Cell Nuclear Antigen) RN - 0 (RNA, Viral) SB - IM MH - Animals MH - Antibodies, Monoclonal MH - Antigens, Viral/*metabolism MH - Cytopathogenic Effect, Viral MH - DNA Probes/chemistry MH - DNA, Viral/chemistry MH - Female MH - Granulosa Cells/virology MH - Immunohistochemistry MH - In Situ Hybridization MH - Macrophages/immunology/pathology/virology MH - Microscopy, Fluorescence MH - Ovarian Follicle/immunology/metabolism/pathology/*virology MH - Porcine Reproductive and Respiratory Syndrome/immunology/pathology/*virology MH - Porcine respiratory and reproductive syndrome virus/chemistry/*genetics/*immunology/pathogenicity MH - Proliferating Cell Nuclear Antigen/metabolism MH - RNA, Viral/chemistry/isolation & purification/*metabolism MH - Reverse Transcriptase Polymerase Chain Reaction/veterinary MH - Specific Pathogen-Free Organisms MH - Swine EDAT- 2001/02/24 12:00 MHDA- 2001/04/03 10:01 CRDT- 2001/02/24 12:00 PHST- 2001/02/24 12:00 [pubmed] PHST- 2001/04/03 10:01 [medline] PHST- 2001/02/24 12:00 [entrez] AID - 10.1354/vp.38-1-58 [doi] PST - ppublish SO - Vet Pathol. 2001 Jan;38(1):58-66. doi: 10.1354/vp.38-1-58.