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  • 1
    Book
    Book
    Wiesbaden : Westdt. Verl.
    Person(s): Kraus, Katrin
    Keywords: Sozialstaat ; Europa ; Sozialstaat ; Internationaler Vergleich ; Europa ; Aufsatzsammlung ; Europa ; Sozialstaat ; Internationaler Vergleich
    Type of Medium: Book
    Pages: 309 S. , graph. Darst.
    Edition: 1. Aufl.
    ISBN: 3531136895
    RVK:
    RVK:
    RVK:
    Language: German
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  • 2
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    BioMed Central
    Publication Date: 2014-03-27
    Description: Background: Human endogenous retroviruses (HERVs) are remnants of ancestral infections and chromosomally integrated in all cells of an individual, are transmitted only vertically and are defective in viral replication. However enhanced expression of HERV-K accompanied by the emergence of anti-HERV-K-directed immune responses has been observed inter-alia in HIV-infected individuals and tumor patients. Therefore HERV-K might serve as a tumor-specific antigen or even as a constant target for the development of an HIV vaccine. Results: To verify our hypothesis, we tested the immunogenicity of HERV-K Gag by using a recombinant vaccinia virus (MVA-HKcon) expressing the HERV-K Gag protein and established an animal model to test its vaccination efficacy. Murine renal carcinoma cells (Renca) were genetically altered to express E. coli beta-galactosidase (RLZ cells) and the HERV-K Gag protein (RLZ-HKGag cells). Subcutaneous application of RLZ-HKGag cells into syngenic BALB/c mice resulted in the formation of local tumors in MVA vaccinated mice. MVA-HKcon vaccination reduced the tumor growth. Furthermore, intravenous injection of RLZ-HKGag cells led to the formation of pulmonary metastases. Vaccination of tumor-bearing mice with MVA-HKcon drastically reduced the number of pulmonary RLZ-HKGag tumor nodules compared to vaccination with wild-type MVA. Conclusion: The data demonstrate that HERV-K Gag is a useful target for vaccine development and might offer new treatment opportunities for cancer patients. .
    Electronic ISSN: 1743-422X
    Topics: Medicine
    Published by BioMed Central
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