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A deletion in the gene encoding the CD45 antigen in a patient with SCID

SCID is a heterogeneous group of hereditary diseases. Mutations in the common gamma -chain (gamma (c)) of cytokine receptors, including those for IL-2, IL-4, IL-7, IL-9, and IL-15, are responsible for an X-linked form of the disease, while mutations of several other genes…

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Does 77 -> G in PTPRC modify autoimmune disorders linked to the major histocompatibility locus?

A 77G allele of the gene encoding CD45, also known as the protein tyrosine phosphatase receptor-type C gene (PTPRC), has been associated with multiple sclerosis (MS). Here we determine allele frequencies in large numbers of MS patients, primary immunodeficiencies linked to…

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Localization to the nucleolus is a common feature of coronavirus nucleoproteins, and the protein may disrupt host cell division

The subcellular localization of transmissible gastroenteritis virus (TGEV) and mouse hepatitis virus (MHV) (group I and group II coronaviruses, respectively) nucleoproteins (N proteins) were examined by confocal microscopy. The proteins were shown to localize either to the…

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Immunogenicity and protection in mice given inactivated influenza vaccine, MPL, QS-21 or QS-7

Background: Monophosphoryl lipid A (MPL), QS-21 and QS-7 were evaluated in mice for their ability to increase the immunogenicity and protective efficacy of formalin-inactivated (FI) influenza A/Texas/91 virus vaccine. Freund's incomplete adjuvant (FIA) was used as a positive…

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Growth of Cowdria ruminantium, the causative agent of heartwater, in a tick cell line

The tick-borne rickettsia Cowdria ruminantium has been propagated continuously for over 500 days in the Ixodes scapularis tick cell line IDES by using the Gardel isolate from bovine endothelial cells as an inoculum, Infection of the tick cells was confirmed by PCR…

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Interactions of bovine viral diarrhoea virus glycoprotein Erns with cell surface glycosaminoglycans

Recombinant E(rns) glycoprotein of bovine viral diarrhoea virus (BVDV) has been tagged with a marker epitope or linked to an immunoglobulin Fc tail and expressed in insect and mammalian cell lines. The product was shown to be functional, both having ribonuclease activity and…

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Influenza A virus infection and atherosclerosis

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Leader switching occurs during the rescue of defective RNAs by heterologous strains of the coronavirus infectious bronchitis virus

A defective RNA (D-RNA), CD-61, derived from the Beaudette strain of the avian coronavirus infectious bronchitis virus (IBV), was rescued (replicated and packaged) using four heterologous strains of IBV as helper virus. Sequence analysis of the genomic RNA from the four…

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Insect population control using a dominant, repressible, lethal genetic system

A major modification to the sterile insect technique is described, in which transgenic insects homozygous for a dominant, repressible, female-specific lethal gene system are used. We demonstrate two methods that give the required genetic characteristics in an otherwise wild…

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Use of cotton rats to evaluate the efficacy of antivirals in treatment of measles virus infections

No practical animal models for the testing of chemotherapeutic or biologic agents identified in cell culture assays as being active against measles virus (MV) are currently available. Cotton rats may serve this purpose. To evaluate this possibility, 5-ethynyl-1-?-d…