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Pin2/TRF1 was independently identified as a telomeric DNA binding protein (TRF1) [1] and as a protein (Pin2) that can bind the mitotic kinase NIMA and suppress its ability to induce mitotic catastrophe [2, 3]. Pin2/TRF1 has been shown to bind telomeric DNA as a dimer [3-7] and to negatively regulate telomere length [8-11]. Interestingly, Pin2/TRF1 levels(More)
Brain disorders induced by congenital cytomegalovirus (CMV) infection may appear at a later time after birth as a consequence of persistent infection and/or the activation of a latent infection of the neural cells. We have analyzed the infection dynamics of the neural cells in the neonatal mouse brains infected with murine CMV (MCMV) in the late stage of(More)
BACKGROUND The placenta is regarded as a site of congenital cytomegalovirus (CMV) infection. The placental infection of fetuses with murine CMV (MCMV) was investigated in a mouse model. METHODS The placentas and fetuses were examined using the polymerase chain reaction (PCR) and Southern blotting for viral DNA and immunostaining for viral antigen. Since(More)
The formation of DNA-protein adducts induced by ultraviolet irradiation (254-nm. wavelength) has been analyzed by cesium chloride equilibrium sedimentation. The formation of ultraviolet-induced DNA-protein adducts is increased in 5-bromodeoxyuridine-substituted chromatin. Cross-linking is dependent in part upon the extent of 5-bromodeoxyuridine(More)
Reactive systemic amyloidosis, also called AA-amyloidosis is a rare fatal complication of common chronic inflammatory diseases such as rheumatoid arthritis. It has been proposed that as yet undefined factors other than persistent elevation of serum level of the precursor protein, serum amyloid A (SAA), are also important for the development of(More)
Isolated mouse whole embryos of 7.5 days' gestation were infected with murine cytomegalovirus (MCMV) and cultured in pure rat serum. Although the MCMV infection had little effect on the survival and development of the embryos during 3 days of cultivation, immunohistochemical analysis of their serial sections using monoclonal antibody showed MCMV-infected(More)
Cytomegalovirus (CMV) is the most frequent infectious cause of developmental brain disorders in humans. Here we show the role of innate immune responses caused by natural killer (NK) cells and nitric oxide (NO) derived from brain macrophages during murine CMV (MCMV) infection of the developing brain. Viral replication in the brain of newborn mice was(More)
Murine cytomegalovirus (MCMV), which causes acute, latent, and persistent infection of the natural host, is used as an animal model of human cytomegalovirus (HCMV) infection. Transcription of MCMV immediate-early (IE) genes is required for expression of the early and late genes and is dependent on host cell transcription factors. Cell-type-specific(More)
Microphthalmia and cerebral atrophies were induced in mouse embryos after injection of murine cytomegalovirus (MCMV) into the conceptus at midgestation. The concepti of ICR mice on day 8.5 of gestation were injected with MCMV through the uterine wall, then pregnancies were allowed to continue. On day 15.5 of gestation, microphthalmia was observed in 19.2%(More)
Cytomegalovirus (CMV) is the most common infectious cause of congenital anomalies of the CNS in humans. We recently reported that the murine cytomegalovirus (MCMV) immediate-early (IE) gene promoter directs astrocyte-specific expression in adult transgenic mice. In the present study, we analyzed the activation of the MCMV IE promoter in developing(More)