Transgene S.a.

Institut Pasteur

Institut Pasteur De Lille

Institut National De La Sante Et De La Recherche Medicale

Transgene

Jean-Marc Balloul

Marie-Paule Kieny

Nadine Bizouarne

Marina Kapfer

Andre Capron

Jean-Marie Grzych

Raymond Pierce

Nathalie Silvestre

Thierry Menguy

Philippe Erbs

Gerard Loison

Jean-Pierre Lecocq

Michel Geist

Stéphane Paul

Paul Sondermeyer

Martine Baudin

The present invention notably relates to novel recombinant telomerase reverse transcriptases, nucleic acid molecules coding them, cells comprising said nucleic acid molecule and use of these cells for the production of substance of interest.

Avian telomerase reverse transcriptase

The present invention relates to specific immortalized avian cell lines expressing telomerase reverse transcriptase (TERT), and exhibiting distinct biologics production patterns. More particularly, the present invention relates to immortalized avian cell line capable of either amplifying Flaviviridae but not capable of amplifying Vaccinia virus strain Copenhagen (VV-COP) nor Modified Vaccinia virus Ankara (MVA), or capable of amplifying both Flaviviridae and Poxviridae. The invention further relates to the use of said immortalized avian cell lines and related methods for producing biologics, including viruses and proteins.

Immortalized avian cell lines and use thereof

A nucleic acid molecule encoding at least one papillomavirus E2 polypeptide, or a vector, an infectious viral particle or a therapeutic composition thereof is formulated into a drug product useful for treating a patient suffering from a persistent papillomavirus infection caused by at least one papillomavirus; particular such vectors are nucleic acid molecules containing a first nucleotide sequence encoding a papillomavirus E1 polypeptide and a second nucleotide sequence encoding a papillomavirus E2 polypeptide wherein the 3' portion of the first nucleotide which in the natural content is 100% identical to the 5&#x2032; portion of the second nucleotide is modified so as to exhibit a percentage of identity between said portions of at most 75%.

Papillomavirus vaccines

A pharmaceutical composition for treating or preventing a papillomavirus infection or tumor, including, as the therapeutical agents, a polypeptide from an early region and a polypeptide from a late region of a papillomavirus, optionally combined with a polypeptide having immunostimulatory activity or a polypeptide from an early or late region of a papillomavirus and a polypeptide having immunostimulatory activity, or alternatively, a recombinant vector containing inserted DNA fragments coding for the above-mentioned polypeptide combinations.

Pharmaceutical compositions for treating papillomavirus tumors and infection

A pharmaceutical composition for treating or preventing a papillomavirus infection or tumour, including, as the therapeutical agents, a polypeptide from an early region and a polypeptide from a late region of a papillomavirus, optionally combined-with a polypeptide having immunostimulatory activity or a polypeptide from an early or late region of a papillomavirus and a polypeptide having immunostimulatory activity, or alternatively, a recombinant vector containing inserted DNA fragments coding for the above-mentioned polypeptide combinations.

The present invention concerns a poxviral particle having a targeted infection specificity conferred by an heterologous ligand moiety present at the surface of said poxviral particle and capable of specifically recognizing and binding to an anti-ligand molecule localized at the surface of target cells. The present invention further relates to a vector comprising a nucleotide sequence encoding a chimeric polypeptide including such an heterologous ligand moiety and all or part of a natural poxviral surface polypeptide. The present invention additionally concerns compositions comprising said poxviral particle or said vector as well as their use for therapeutic and prophylactic purposes. The invention is of very special interest in gene therapy applications, in particular in preventing or treating cancer in mammals.

Poxvirus with targeted infection specificity

Antitumoral compositions can comprise as therapeutic agent one or several immunogenic polypeptides, of which at least one is modified so as to have a cell location different from its native location. Compositions can be based on a recombinant vector expressing such an immunogenic polypeptide. A recombinant vector comprising at least the sequences coding for an immunogenic polypeptide originating from a precocious and/or tardive region of a papillomavirus having a modified location and a viral particle comprising said vector is also described. Finally, therapeutic uses of such a composition, such a recombinant vector and such a viral particle are described.

Antitumoral composition based on immunogenic polypeptide with modified cell location

A pharmaceutical composition for treating or preventing a papillomavirus infection or tumour, including, as the therapeutical agents, a polypeptide from an early region and a polypeptide from a late region of a papillomavirus, optionally combined with a polypeptide having immunostimulatory activity or a polypeptide from an early or late region of a papillomavirus and a polypeptide having immunostimulatory activity, or alternatively, a recombinant vector containing inserted DNA fragments coding for the above-mentioned polypeptide combinations.

Pharmaceutical composition for treating papillomavirus tumors and infection

Antitumoral compositions can comprise as therapeutic agent one or several immunogenic polypeptides, of which at least one is modified so as to have a cell location different from its native location. Compositions can be based on a recombinant vector expressing such an immunogenic polypeptide. A recombinant vector comprising at least the sequences coding for an immunogenic polypeptide originating from a precocious and/or tardive region of a papillomavirus having a modified location and a viral particle comprising the vector is also described. Finally, therapeutic uses of such a composition, such a recombinant vector and such a viral particle are described.

An antigenic composition against S. mansoni comprising an 8 kD peptidic fragment associated with a suitable vehicle, the 8 kD peptidic fragment being obtained by controlled proteolysis using V8 protease of a 28 kD protein obtained from S. mansoni is described.

Antigenic composition obtained by V8 proteolysis of a protein from S.

The present invention relates to the development of a vaccine against schistosomiasis. It relates to a protein which includes the epitopes of the p28 protein, a poxvirus containing a gene coding for the said protein, a cell incorporating a vector for the expression of the said protein, a method for preparing the said protein, a DNA sequence coding for the p28 protein, a pharmaceutical composition, antibodies raised against the said protein and their application by way of diagnostic agents for schistosomiasis. The present invention also relates to the application of the said protein by way of an agent possessing glutathione S-transferase activity.

Protein recognized by antibodies raised against native P28 of

A hybridoma is provided which provides a monoclonal antibody of isotope IgG2a, which recognizes a strip corresponding to a peptidic fragment of 8kD, isolated by controlled proteolysis of the 28kD polypeptide of S. mansoni.

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Lingolsheim, France

Jean-Marc Balloul