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The major inducible 70-kDa heat shock protein (hsp72) binds measles virus (MV) nucleocapsids and increases MV gene expression. The cytoplasmic tail of the MV N protein (N(TAIL)) contains three hydrophobic domains (Box-1-3) that are potential targets of hsp72 interaction. Low affinity binding to Box-3 is correlated to hsp72-dependent stimulation of MV(More)
Transient hyperthermia such as that experienced during febrile episodes increases expression of the major inducible 70-kDa heat shock protein (hsp72). Despite the relevance of febrile episodes to viral pathogenesis and the multiple in vitro roles of heat shock proteins in viral replication and gene expression, the in vivo significance of virus-heat shock(More)
Nervous tissue subjected to hyperthermic pre-conditioning is resistance to numerous insults although in vitro, the same treatment can increase gene expression and cytopathic effect of neurotropic paramyxoviruses, including measles virus (MV). The present work determined whether the in vivo relationship between hyperthermic pre-conditioning and MV infection(More)
In vitro studies show that hsp70 promotes gene expression for multiple viral families, although there are few reports on the in vivo significance of virus-hsp70 interaction. Previously we showed that hsp70-dependent stimulation of Edmonston measles virus (Ed MeV) transcription caused an increased cytopathic effect and mortality in transgenic(More)
Heat shock proteins (HSPs) are recognized for their support of protein metabolism. Interaction with viral proteins also enhances the development of innate and adaptive immune responses against the infecting agent. At the level of the infected cell, HSPs are uniquely expressed on the cell surface, where they represent targets of lymphokine activated killer(More)
The major inducible 70-kDa heat shock protein (hsp70) is host protective in a mouse model of measles virus (MeV) brain infection. Transgenic constitutive expression of hsp70 in neurons, the primary target of MeV infection, abrogates neurovirulence in neonatal H-2(d) congenic C57BL/6 mice. A significant level of protection is retained after depletion of T(More)
The major inducible 70-kDa heat shock protein (hsp72) increases measles virus (MV) transcription and genome replication. This stimulatory effect is attributed to hsp72 interaction with two highly conserved hydrophobic domains in the nucleocapsid protein (N) C terminus of Edmonston MV. These domains are known as Box-2 and Box-3. A single amino acid(More)
Measles virus (MV) vaccine effectively protects seronegative individuals against infection. However, inhibition of vaccine-induced seroconversion by maternal antibodies after vaccination remains a problem, as it leaves infants susceptible to MV infection. In cotton rats, passive transfer of MV-specific IgG mimics maternal antibodies and inhibits(More)
Cotton rats (Sigmodon hispidus) replicate measles virus (MV) after intranasal infection in the respiratory tract and lymphoid tissue. We have cloned the cotton rat signaling lymphocytic activation molecule (CD150, SLAM) in order to investigate its role as a potential receptor for MV. Cotton rat CD150 displays 58% and 78% amino acid homology with human and(More)
Heat shock proteins (HSPs) play an important role in the maintenance of cellular homeostasis, particularly in response to stressful conditions that adversely affect normal cellular structure and function, such as hyperthermia. A remarkable intrinsic resistance of brain to hyperthermia reflects protection mediated by constitutive and induced expression of(More)
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