PMID- 16337347 OWN - NLM STAT- MEDLINE DCOM- 20060718 LR - 20061115 IS - 0378-1135 (Print) IS - 0378-1135 (Linking) VI - 113 IP - 3-4 DP - 2006 Mar 31 TI - Temporary inhibition of neuronal apoptosis in Aujeszky's disease virus-infected swine. PG - 237-42 AB - Previous studies have shown that during acute infection of the porcine trigeminal ganglia (TG), Aujeszky's disease virus (ADV)-infected neurons are protected from apoptosis induced by the virus itself and by cells of the immune system. However, TG neurons productively infected by ADV finally die and are phagocytosed by adjacent cells, a fact that leads us to speculate that the inhibition of neuronal apoptosis by ADV may be temporary rather than absolute. To address this issue we used TG and brain stem from pigs during acute infection by ADV. Infected cells were detected by immunohistochemical staining of viral antigens, whereas apoptotic cells were identified with an anti-active caspase-3 antibody, the TUNEL assay and by transmission electron microscopy. The results obtained in this study support the contention that the inhibition of neuronal apoptosis by ADV is temporary, since activation of caspase-3 could be detected in infected neurons at late stages in infection and because foci of advanced neuronophagia contained neurons exhibiting typical ultrastructural features of apoptosis. FAU - Marcaccini, A AU - Marcaccini A AD - Catedra de Histologia II y Embriologia Especial, Facultad de Ciencias Veterinarias, Universidad Nacional de Rosario, Casilda, Argentina. FAU - Aleman, N AU - Aleman N FAU - Quiroga, M I AU - Quiroga MI FAU - Lopez, M AU - Lopez M FAU - Guerrero, F AU - Guerrero F FAU - Nieto, J M AU - Nieto JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20051206 PL - Netherlands TA - Vet Microbiol JT - Veterinary microbiology JID - 7705469 RN - EC 3.4.22.- (Caspase 3) RN - EC 3.4.22.- (Caspases) SB - IM MH - Acute Disease MH - Animals MH - *Apoptosis MH - Caspase 3 MH - Caspases/metabolism MH - Herpesvirus 1, Suid/*pathogenicity MH - Immunohistochemistry/veterinary MH - In Situ Nick-End Labeling/veterinary MH - Neurons/cytology/enzymology/*virology MH - Pseudorabies/pathology/*virology MH - Swine MH - Swine Diseases/pathology/*virology MH - Trigeminal Ganglion/physiology/ultrastructure/*virology MH - Virus Latency EDAT- 2005/12/13 09:00 MHDA- 2006/07/19 09:00 CRDT- 2005/12/13 09:00 PHST- 2005/12/13 09:00 [pubmed] PHST- 2006/07/19 09:00 [medline] PHST- 2005/12/13 09:00 [entrez] AID - S0378-1135(05)00380-9 [pii] AID - 10.1016/j.vetmic.2005.11.039 [doi] PST - ppublish SO - Vet Microbiol. 2006 Mar 31;113(3-4):237-42. doi: 10.1016/j.vetmic.2005.11.039. Epub 2005 Dec 6.