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Antony, France

Moingeon P.,Stallergenes SA
Expert Review of Vaccines | Year: 2014

Allergen-specific immunotherapy is used to treat patients exposed and co-sensitized to the two common house dust mites, Dermatophagoides pteronyssinus and Dermatophagoides farinae. Based on seroepidemiological studies and a detailed characterization of mite allergens, an optimal immunotherapeutic product should associate extracts from the two Dermatophagoides species, and include both bodies and fecal particles. Both subcutaneous and sublingual immunotherapies performed with aqueous mite extracts are safe and efficacious in children and adults with mite-induced rhinitis and/or asthma. Double-blind placebo-controlled studies are conducted to further document the efficacy of immunotherapeutic products, with promising results that were obtained already with sublingual tablets. Current developments of second-generation products relying upon recombinant allergens and peptides are reviewed. © 2014 Informa UK Ltd. Source

The present invention concerns methods for determining if a dendritic cell belongs to a tolerogenic dendritic cell subset or to an effector dendritic cell subset, and methods for determining if a patient undergoing immunotherapy, and/or who has been administered with a vaccine, is developing an immune response oriented either towards a regulatory T cell response or towards an effector T cell response, and methods of determining response to immunotherapy.

The invention relates to grass pollen extracts containing reduced amount of flavonoid glycosides in order to minimize the risks of genotoxicity of the grass pollen extracts. The invention also relates to a method of preparing grass pollen extracts containing reduced amount of flavonoid glycosides by ultrafiltration. Flavonoid glycosides are naturally present in grass pollen extracts and they have been identified as being responsible for the formation of flavonoid aglycones, which are genotoxic in vitro, under the influence of enzymes contained in the grass pollen extracts.

Stallergenes S.A. | Date: 2012-04-06

The invention relates to proteins for use as a marker for the efficacy of sublingual immunotherapy. In particular, the proteins may be used to predict the responsiveness of a patient to immunotherapy. The invention may find use in selecting patients as suitable candidates for immunotherapy.

The present disclosure relates to a mucoadhesive composition, adapted for preventing and/or treating a pathological reaction of the immune system of an individual, by inducing a specific tolerance towards at least one antigen involved in said pathological reaction, comprising chitosan particles loaded with said at least one antigen involved in the pathological reaction, wherein the size of the loaded chitosan particles is of more than 800 nm.

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