摘要:
Non-naturally occurring mycobacteria in the Mycobacterium tuberculosis complex are provided. These mycobacteria have a deletion of an RD1 region or a region controlling production of a vitamin, and exhibit attenuated virulence in a mammal when compared to the mycobacteria without the deletion. Also provided are non-naturally occurring mycobacteria that have a deletion of a region controlling production of lysine, and mycobacteria comprising two attenuating deletions. Vaccines comprising these mycobacteria are also provided, as are methods of protecting mammals from virulent mycobacteria using the vaccines. Also provided are methods of preparing these vaccines which include the step of deleting an RD1 region or a region controlling production of a vitamin or the amino acids leucine and lysine from a mycobacterium in the M. tuberculosis complex. Embodiments of these mycobacteria, vaccines and methods, encompassing mycobacteria comprising a leucine auxotrophy and a pantothenate auxotrophy, are also provided.
摘要:
Non-naturally occurring mycobacteria in the Mycobacterium tuberculosis complex are provided. These mycobacteria have a deletion of an RD1 region or a region controlling production of a vitamin, and exhibit attenuated virulence in a mammal when compared to the mycobacteria without the deletion. Also provided are non-naturally occurring mycobacteria that have a deletion of a region controlling production of lysine, and mycobacteria comprising two attenuating deletions. Vaccines comprising these mycobacteria are also provided, as are methods of protecting mammals from virulent mycobacteria using the vaccines. Also provided are methods of preparing these vaccines which include the step of deleting an RD1 region or a region controlling production of a vitamin or the amino acids leucine and lysine from a mycobacterium in the M. tuberculosis complex. Embodiments of these mycobacteria, vaccines and methods, encompassing mycobacteria comprising a leucine auxotrophy and a pantothenate auxotrophy, are also provided.
摘要:
Methods of treating a mammal that is deficient in CD4+ and/or CD8+ lymphocytes are provided. The methods comprise inoculating the mammal with an attenuated mycobacterium in the M. tuberculosis complex. In these methods, the mycobacterium comprises two deletions, wherein a virulent mycobacterium in the M. tuberculosis complex having either deletion exhibits attenuated virulence. Use of these mycobacteria for the manufacture of a medicament for the treatment of mammals deficient in CD4+ and/or CD8+ lymphocytes is also provided.
摘要:
Non-naturally occurring mycobacteria in the Mycobacterium tuberculosis complex are provided. These mycobacteria have a deletion of an RD1 region or a region controlling production of a vitamin, and exhibit attenuated virulence in a mammal when compared to the mycobacteria without the deletion. Also provided are non-naturally occurring mycobacteria that have a deletion of a region controlling production of lysine, and mycobacteria comprising two attenuating deletions. Vaccines comprising these mycobacteria are also provided, as are methods of protecting mammals from virulent mycobacteria using the vaccines. Also provided are methods of preparing these vaccines which include the step of deleting an RD1 region or a region controlling production of a vitamin from a mycobacterium in the M. tuberculosis complex.
摘要:
Methods of treating a mammal that is deficient in CD4+ and/or CD8+ lymphocytes are provided. The methods comprise inoculating the mammal with an attenuated mycobacterium in the M. tuberculosis complex. In these methods, the mycobacterium comprises two deletions, wherein a virulent mycobacterium in the M. tuberculosis complex having either deletion exhibits attenuated virulence. Use of these mycobacteria for the manufacture of a medicament for the treatment of mammals deficient in CD4+ and/or CD8+ lymphocytes is also provided.