摘要:
The subject of the present invention is the identification of nucleotide and peptide sequences which make it possible in particular to distinguish, in diagnostic terms, an immunization resulting from a BCG vaccination from an M. tuberculosis infection. The sequences in question are specific either to M. bovis BCG/M. bovis, or to M. tuberculosis. The subject of the present invention is also a method for detecting the sequences in question, a method for detecting antibodies generated by the products of expression of these sequences and the kits for carrying out these methods. Finally, the subject of the present invention is novel vaccines.
摘要:
The invention concerns the isolation of nucleotide and peptide sequences in particular for differentiating, in diagnostic terms, an immunisation resulting from BCG vaccination of an infection by M. tuberculosis. Said sequences are either M. bovis BCG/M. bovis specific or M. tuberculosis specific. The invention also concerns a method for detecting said sequences, a method for detecting antibodies generated by the products expressing said sequences as well as kits for implementing said methods. Finally, the invention concerns novel vaccines.
摘要:
The invention concerns the isolation of nucleotide and peptide sequences in particular for differentiating, in diagnostic terms, an immunization resulting from BCG vaccination of an infection by M. tuberculosis. Said sequences are either M. bovis BCG/M. bovis specific or M. tuberculosis specific. The invention also concerns a method for detecting said sequences, a method for detecting antibodies generated by the products expressing said sequences as well as kits for implementing said methods. Finally, the invention concerns novel vaccines.
摘要:
The present invention is directed to a method for isolating a polynucleotide of interest that is present or is expressed in a genome of a first mycobacterium strain and that is absent or altered in a genome of a second mycobacterium strain which is different from the first mycobacterium strain using a bacterial artificial chromosome (BAC) vector. The invention further relates to a polynucleotide isolated by this method and recombinant BAC vector used in this method. In addition the present invention comprises method and kit for detecting the presence of a mycobacteria in a biological sample.
摘要:
A method for isolating a polynucleotide of interest that is present in the genome of a first mycobacterium strain and/or is expressed by the first mycobacterium strain, where the polynucleotide of interest is also absent or altered in the genome of a second mycobacterium strain and/or is not expressed in the second mycobacterium. The method includes (a) contacting the genomic DNA of the first mycobacterium strain under hybridizing conditions with the DNA of a least one clone that belongs to a bacterial artificial chromosome (BAC) genomic DNA library of the second mycobacterium strain, and (b) isolating the polynucleotide of interest that does not form a hybrid with the DNA of the second mycobacterium strain. This invention further pertains to a Mycobacterium tuberculosis strain H37Rv genomic DNA library, as well as a Mycobacterium bovis BCG strain Pasteur genomic DNA library, and the recombinant BAC vectors that belong to those genomic DNA libraries. This invention also relates to mycobacterial nucleic acids, and methods and kits for using these nucleic acids to detect mycobacteria in a biological sample.
摘要:
A method for isolating a polynucleotide of interest that is present in the genome of a first mycobacterium strain and/or is expressed by the first mycobacterium strain, where the polynucleotide of interest is also absent or altered in the genome of a second mycobacterium strain and/or is not expressed in the second mycobacterium. The method includes (a) contacting the genomic DNA of the first mycobacterium strain under hybridizing conditions with the DNA of a least one clone that belongs to a bacterial artificial chromosome (BAC) genomic DNA library of the second mycobacterium strain, and (b) isolating the polynucleotide of interest that does not form a hybrid with the DNA of the second mycobacterium strain. This invention further pertains to a Mycobacterium tuberculosis strain H37Rv genomic DNA library, as well as a Mycobacterium bovis BCG strain Pasteur genomic DNA library, and the recombinant BAC vectors that belong to those genomic DNA libraries. This invention also relates to mycobacterial nucleic acids, and methods and kits for using these nucleic acids to detect mycobacteria in a biological sample.
摘要:
A method for isolating a polynucleotide of interest that is present in the genome of and/or expressed by a first mycobacterium strain that is also absent or altered in the genome of and/or not expressed by a second mycobacterium strain. The method includes contacting the genomic DNA of the first strain under hybridizing conditions with the DNA of at least one clone belonging to a bacterial artificial chromosome (BAC) genomic DNA library of the second strain and isolating the polynucleotide of interest that does not hybridize with the DNA of the second strain. This invention further pertains to a Mycobacterium tuberculosis strain H37Rv genomic DNA library, a Mycobacterium bovis BCG strain Pasteur genomic DNA library, and the recombinant BAC vectors belonging to those genomic DNA libraries. This invention also relates to mycobacterial nucleic acids, and methods and kits for using these nucleic acids to detect mycobacteria in a biological sample.
摘要:
A method for detecting Mycobacterium tuberculosis involves contacting a biological sample with the product of expression of at least one ORF contained in a polynucleotide present in Mycobacterium tuberculosis and absent in Mycabacterium bovis BCG; and detecting whether an immunological complex is formed between the product thereof and antibodies contained in the biological sample, wherein the presence of a complex indicates an infection with Mycobacterium tuberculosis.
摘要:
The present invention is directed to a method for isolating a polynucleotide of interest that is present or is expressed in a genome of a first mycobacterium strain and that is absent or altered in a genome of a second mycobacterium strain which is different from the first mycobacterium strain using a bacterial artificial chromosome (BAC) vector. The invention further relates to a polynucleotide isolated by this method and recombinant BAC vector used in this method. In addition the present invention comprises method and kit for detecting the presence of a mycobacteria in a biological sample.
摘要:
A method for detecting Mycobacterium tuberculosis involves contacting a biological sample with the product of expression of at least one ORF contained in a polynucleotide present in Mycobacterium tuberculosis and absent in Mycabacterium bovis BCG; and detecting whether an immunological complex is formed between the product thereof and antibodies contained in the biological sample, wherein the presence of a complex indicates an infection with Mycobacterium tuberculosis.