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Recombinant Mycobacterium bovis BCG. 2009

Reginaldo G Bastos, and Sibele Borsuk, and Fabiana K Seixas, and Odir A Dellagostin
Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, WA 99164-7040, USA.

The Bacillus Calmette-Guerin (BCG) is an attenuated strain of Mycobacterium bovis that has been broadly used as a vaccine against human tuberculosis. This live bacterial vaccine is able to establish a persistent infection and induces both cellular and humoral immune responses. The development of mycobacterial genetic systems to express foreign antigens and the adjuvanticity of BCG are the basis of the potential use of this attenuated mycobacterium as a recombinant vaccine. Over the years, a range of strategies has been developed to allow controlled and stable expression of viral, bacterial and parasite antigens in BCG. Herein, we review the strategies developed to express heterologous antigens in BCG and the immune response elicited by recombinant BCG constructs. In addition, the use of recombinant BCG as an immunomodulator and future perspectives of BCG as a recombinant vaccine vector are discussed.

UI MeSH Term Description Entries
D009163 Mycobacterium bovis The bovine variety of the tubercle bacillus. It is called also Mycobacterium tuberculosis var. bovis. BCG,Calmette-Guerin Bacillus
D005822 Genetic Vectors DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition. Cloning Vectors,Shuttle Vectors,Vectors, Genetic,Cloning Vector,Genetic Vector,Shuttle Vector,Vector, Cloning,Vector, Genetic,Vector, Shuttle,Vectors, Cloning,Vectors, Shuttle
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001500 BCG Vaccine An active immunizing agent and a viable avirulent attenuated strain of MYCOBACTERIUM BOVIS, which confers immunity to mycobacterial infections. It is used also in immunotherapy of neoplasms due to its stimulation of antibodies and non-specific immunity. Bacillus Calmette Guerin Vaccine,Calmette Guerin Bacillus Vaccine,Calmette's Vaccine,Calmette Vaccine,Calmettes Vaccine,Vaccine, BCG,Vaccine, Calmette's
D014376 Tuberculosis Any of the infectious diseases of man and other animals caused by species of MYCOBACTERIUM TUBERCULOSIS. Koch's Disease,Kochs Disease,Mycobacterium tuberculosis Infection,Infection, Mycobacterium tuberculosis,Infections, Mycobacterium tuberculosis,Koch Disease,Mycobacterium tuberculosis Infections,Tuberculoses
D014613 Vaccines, Attenuated Live vaccines prepared from microorganisms which have undergone physical adaptation (e.g., by radiation or temperature conditioning) or serial passage in laboratory animal hosts or infected tissue/cell cultures, in order to produce avirulent mutant strains capable of inducing protective immunity. Attenuated Vaccine,Vaccines, Live, Attenuated,Attenuated Vaccines,Vaccine, Attenuated
D014614 Vaccines, Synthetic Small synthetic peptides that mimic surface antigens of pathogens and are immunogenic, or vaccines manufactured with the aid of recombinant DNA techniques. The latter vaccines may also be whole viruses whose nucleic acids have been modified. Antigens, Synthetic,Chemical Vaccine,Chemical Vaccines,Immunogens, Synthetic,Molecular Vaccine,Molecular Vaccines,Recombinant Vaccine,Semisynthetic Vaccine,Semisynthetic Vaccines,Synthetic Antigen,Synthetic Vaccine,Synthetic Vaccines,Vaccines, Recombinant,Synthetic Antigens,Synthetic Immunogens,Vaccines, Chemical,Vaccines, Molecular,Vaccines, Semisynthetic,Antigen, Synthetic,Recombinant Vaccines,Vaccine, Chemical,Vaccine, Molecular,Vaccine, Recombinant,Vaccine, Semisynthetic,Vaccine, Synthetic
D056747 Immunomodulation Alteration of the immune system or of an immune response by agents that activate or suppress its function. This can include IMMUNIZATION or administration of immunomodulatory drugs. Immunomodulation can also encompass non-therapeutic alteration of the immune system effected by endogenous or exogenous substances. Immunomodulatory Therapy,Immunomodulations,Immunomodulatory Therapies,Therapies, Immunomodulatory,Therapy, Immunomodulatory

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