Abstract: The present invention relates to polymerized recombinant proteins, to recombinant nucleic acids coding for the polymerized recombinant proteins, to expression cassettes comprising the recombinant nucleic acids, to host cells transformed by the expression cassettes and to a method for multimerizing a recombinant protein. The polymerized proteins of the invention may be used in pharmaceutical or immunogenic compositions. In particular, the recombinant proteins may be antigens, antibodies or scaffolds. In particular, the polymerized recombinant protein may be an influenza haemagglutinin.

Abstract: A new non-HIV vaccine antigen from Mycoplasma sp. permease capable of inducing a mucosal neutralizing protective antibody response against HIV infection, a neutralizing antibody directed to said antigen, and a method for the identification of new antigens from the mucosal microbiota for the development of vaccines against pathogens.

Abstract: The present invention relates to polymerized recombinant proteins, to recombinant nucleic acids coding for the polymerized recombinant proteins, to expression cassettes comprising the recombinant nucleic acids, to host cells transformed by the expression cassettes and to a method for multimerizing a recombinant protein. The polymerized proteins of the invention may be used in pharmaceutical or immunogenic compositions. In particular, the recombinant proteins may be antigens, antibodies or scaffolds. In particular, the polymerized recombinant protein may be an influenza haemagglutinin.

Abstract: The present invention relates to polymerized recombinant proteins, to recombinant nucleic acids coding for the polymerized recombinant proteins, to expression cassettes comprising the recombinant nucleic acids, to host cells transformed by the expression cassettes and to a method for multimerizing a recombinant protein. The polymerized proteins of the invention may be used in pharmaceutical or immunogenic compositions. In particular, the recombinant proteins may be antigens, antibodies or scaffolds. In particular, the polymerized recombinant protein may be an influenza haemagglutinin.

Abstract: The present invention relates to polymerized recombinant proteins, to recombinant nucleic acids coding for the polymerized recombinant proteins, to expression cassettes comprising the recombinant nucleic acids, to host cells transformed by the expression cassettes and to a method for multimerizing a recombinant protein. The polymerized proteins of the invention may be used in pharmaceutical or immunogenic compositions. In particular, the recombinant proteins may be antigens, antibodies or scaffolds. In particular, the polymerized recombinant protein may be an influenza haemagglutinin.

Abstract: A new non-HIV vaccine antigen from Mycoplasma sp. permease capable of inducing a mucosal neutralizing protective antibody response against HIV infection, a neutralizing antibody directed to said antigen, and a method for the identification of new antigens from the mucosal microbiota for the development of vaccines against pathogens.

Abstract: The subject matter of the present invention is a novel vector and the use thereof for producing a heterologous protein or a gene of interest, that can be used, for example, in the context of an immunization or gene therapy programme and concerns in particular a self-replicating vector lacking an antibiotic-resistance gene, comprising a sequence encoding the ccdA protein functionally linked to a first promoter, the sequence of the Cer locus and a heterologous sequence, functionally linked to a second promoter.

Abstract: The invention relates to a polypeptide recognized by anti HIV-1 gp41 antibodies isolated from Highly Exposed, non Infected Women, and epitopic fragments and conjugate thereof. Method of inducing antibodies neutralizing HIV-1 against HIV-1 is also contemplated.

Abstract: The invention relates to live attenuated dengue serotype 3 virus strains which have been produced by site directed mutagenesis of an attenuated dengue 3 strain.

Abstract: The present invention relates to a method for inducing antibodies neutralizing HIV primary isolates in a mammal, comprising administration of a pharmaceutical composition comprising a polypeptide represented by the formula N-L-C, in which: N represents the amino acid sequence 25–81 of gp41, C represents the amino acid sequence 112–157 of gp41, and L represents a flexible linking sequence comprising from 2 to 30 amino acids.

Abstract: The present invention thus provides a polypeptide capable of forming a structure corresponding to or mimicking the intermediate of gp41 as well as its use in a vaccine for treating or preventing HIV infections.

Abstract: The present invention comprises novel polypeptide antigens that can be used for therapeutic and prophylactic immunization against HIV-related infections. The polypeptide of the invention mimics the intermediate state of gp41 and is capable of inducing antibodies which neutralize primary isolates of HIV. The invention also comprises compositions comprising the polypeptide and methods of using it.

Abstract: The present invention relates to a method for inducing antibodies neutralizing HIV primary isolates in a mammal, comprising administration of a pharmaceutical composition comprising a polypeptide represented by the formula N-L-C, in which:

Abstract: On the basis of a first repertoire of genes coding for a population of one of two kinds of polypeptides capable of being combined, particularly an antibody light chain variable region, and at least one gene, and preferably a second repertoire coding for the other kind of polypeptide, particularly an antibody heavy chain variable region, the genes from the first repertoire are inserted into a first vector to form a vector population and the genes from the second repertoire are inserted into a second vector, at least one of said vectors being a recipient for the expression of both genes as polypeptides irreversibly combined with the outer surface of the product of said vector.

Abstract: The present invention comprises novel polypeptide antigens that can be used for therapeutic and prophylactic immunization against HIV-related infections. The polypeptide of the invention mimics the intermediate state of gp41 and is capable of inducing antibodies which neutralize primary isolates of HIV. The invention also comprises compositions comprising the polypeptide and methods of using it.

Abstract: The present invention thus provides a polypeptide capable of forming a structure corresponding to or mimicking the intermediate of gp41 as well as its use in a vaccine for treating or preventing HIV infections.

Abstract: On the basis of a first repertoire of genes coding for a population of one of two kinds of polypeptides capable of being optionally covalently combined, particularly variable regions of either the antibody light chain type or the antibody heavy chain type, and at least one gene coding for the other type of polypeptide, particularly a variable region of the other type, an antibody chain or preferably a second repertoire of genes coding for a population of said other type, the genes from the first repertoire are inserted into a first vector to form a population of vectors carrying the various genes of said first repertoire, and said gene of said other type or the genes from said second repertoire is/are inserted into a second vector. Both starting vectors have means enabling each to exchange one part by one or more irreversible recombinations to generate recombinant final vectors of which one contains a gene of one of said types and a gene of the other type.