The present invention relates to a method and kit for detecting and diagnosing Chlamydia suis infections in a subject using peptides comprising the amino acid sequence of GTKDASID and/or SQQSSIAS as antigenic determinants.

The present invention provides Chlamydia organisms and compositions and methods of use in the treatment/prevention of chlamydial infection in a subject, for eliciting an immune response in a subject and for use as vectors.

The present invention provides Chlamydia organisms and compositions and methods of use in the treatment/prevention of chlamydial infection in a subject, for eliciting an immune response in a subject and for use as vectors.

Purified Chlamydia major outer membrane protein (MOMP) has been observed to induce protection against genital and respiratory challenge in mice. MOMP contains variable domains that are highly immunogenic and elicit cross-serovar neutralizing monoclonal and polyclonal antibodies and T cell responses in animal and human models. Examples herein provide a method for vaccinating a subject against Chlamydia using a composition that is a recombinant Neisseria porin that contains at least one antigenic variable domain of Chlamydia. The variable domains are inserted into the amino acid sequence of the Neisseria porin at a position encoding a surface-exposed loop of the Neisseria porin. The vaccine further contains an adjuvant that induces a Th1 response greater than a Th2 response.

The invention provides Chlamydia antigens for use in the treatment, prevention and/or diagnosis of Chlamydia infection. In particular, the invention provides antigens CT733, CT153, CT601, CT279, CT443, CT372, CT456, CT381, CT255, CT341, CT716, CT745, CT387, CT812, CT869, CT166, CT175, CT163, CT214, CT721, CT127, CT043, CT823 and/or CT600 from C. trachomatis for the treatment, prevention or diagnosis of Chlamydia infection.

The invention provides Chlamydia antigens for use in the treatment, prevention and/or diagnosis of Chlamydia infection. In particular, the invention provides antigens CT733, CT153, CT601, CT279, CT443, CT372, CT456, CT381, CT255, CT341, CT716, CT745, CT387, CT812, CT869, CT166, CT175, CT163, CT214, CT721, CT127, CT043, CT823 and/or CT600 from C. trachomatis for the treatment, prevention or diagnosis of Chlamydia infection.

This invention relates to compositions (e.g., vaccine compositions) which can be used to immunise against Chlamydia infections. The compositions comprise Chlamydia sp. antigens and antigen combinations which can be used to immunise against Chlamydia sp., used in the form of nucleic acids (e.g., mRNAs) encoding antigenic proteins or in the form of recombinant protein antigens.

This invention relates to compositions (e.g., vaccine compositions) which can be used to immunise against Chlamydia infections. The compositions comprise Chlamydia sp. antigens and antigen combinations which can be used to immunise against Chlamydia sp., used in the form of nucleic acids (e.g., mRNAs) encoding antigenic proteins or in the form of recombinant protein antigens.

A recombinantly expressed nucleotide triphosphate transporter efficiently imports the triphosphates of unnatural nucleotides into cells, and the endogenous cellular machinery incorporates those nucleotides into cellular nucleic acids. UBPs can therefore form within the cell's nucleic acids. Moreover, neither the presence of the unnatural triphosphates nor the replication of the UBP represents a significant growth burden. The UBP is not efficiently excised by nucleic acid repair pathways, and therefore can be retained as long as the unnatural triphosphates are available in the growth medium. Thus, the resulting cell is the first organism to stably propagate an expanded genetic alphabet.

A recombinantly expressed nucleotide triphosphate transporter efficiently imports the triphosphates of unnatural nucleotides into cells, and the endogenous cellular machinery incorporates those nucleotides into cellular nucleic acids. UBPs can therefore form within the cell's nucleic acids. Moreover, neither the presence of the unnatural triphosphates nor the replication of the UBP represents a significant growth burden. The UBP is not efficiently excised by nucleic acid repair pathways, and therefore can be retained as long as the unnatural triphosphates are available in the growth medium. Thus, the resulting cell is the first organism to stably propagate an expanded genetic alphabet.