TY - JOUR
T1 - Development of a Hypoallergenic Recombinant Parvalbumin for First-in-Man Subcutaneous Immunotherapy of Fish Allergy
AU - Zuidmeer-Jongejan, Laurian
AU - Huber, Hans
AU - Swoboda, Ines
AU - Rigby, Neil
AU - Versteeg, Serge A
AU - Jensen, Bettina Margrethe
AU - Quaak, Suzanne
AU - Akkerdaas, Jaap H
AU - Blom, L.
AU - Asturias, Juan
AU - Bindslev-Jensen, Carsten
AU - Bernardi, Maria L
AU - Clausen, Michael
AU - Ferrara, Rosa
AU - Hauer, Martina
AU - Heyse, Jet
AU - Kopp, Stephan
AU - Kowalski, Marek L
AU - Lewandowska-Polak, Anna
AU - Linhart, Birgit
AU - Maderegger, Bernhard
AU - Maillere, Bernard
AU - Mari, Adriano
AU - Martinez, Alberto
AU - Mills, E N Clare
AU - Neubauer, Angela
AU - Nicoletti, Claudio
AU - Papadopoulos, Nikolaos G
AU - Portoles, Antonio
AU - Ranta-Panula, Ville
AU - Santos-Magadan, Sara
AU - Schnoor, H J
AU - Sigurdardottir, Sigurveig T
AU - Stahl Skov, P
AU - Stavroulakis, George
AU - Stegfellner, Georg
AU - Vázquez-Cortés, Sonia
AU - Witten, M
AU - Stolz, Frank
AU - Poulsen, Lars K.
AU - Fernandez-Rivas, Montserrat
AU - Valenta, Rudolf
AU - van Ree, Ronald
PY - 2015/4/6
Y1 - 2015/4/6
N2 - Background: The FAST (food allergy-specific immunotherapy) project aims at developing safe and effective subcutaneous immunotherapy for fish allergy, using recombinant hypoallergenic carp parvalbumin, Cyp c 1. Objectives: Preclinical characterization and good manufacturing practice (GMP) production of mutant Cyp (mCyp) c 1. Methods:Escherichia coli-produced mCyp c 1 was purified using standard chromatographic techniques. Physicochemical properties were investigated by gel electrophoresis, size exclusion chromatography, circular dichroism spectroscopy, reverse-phase high-performance liquid chromatography and mass spectrometry. Allergenicity was assessed by ImmunoCAP inhibition and basophil histamine release assay, immunogenicity by immunization of laboratory animals and stimulation of patients' peripheral blood mononuclear cells (PBMCs). Reference molecules were purified wild-type Cyp c 1 (natural and/or recombinant). GMP-compliant alum-adsorbed mCyp c 1 was tested for acute toxicity in mice and rabbits and for repeated-dose toxicity in mice. Accelerated and real-time protocols were used to evaluate stability of mCyp c 1 as drug substance and drug product. Results: Purified mCyp c 1 behaves as a folded and stable molecule. Using sera of 26 double-blind placebo-controlled food-challenge-proven fish-allergic patients, reduction in allergenic activity ranged from 10-to 5,000-fold (1,000-fold on average), but with retained immunogenicity (immunization in mice/rabbits) and potency to stimulate human PBMCs. Toxicity studies revealed no toxic effects and real-time stability studies on the Al(OH)3-adsorbed drug product demonstrated at least 20 months of stability. Conclusion: The GMP drug product developed for treatment of fish allergy has the characteristics targeted for in FAST: i.e. hypoallergenicity with retained immunogenicity. These results have warranted first-in-man immunotherapy studies to evaluate the safety of this innovative vaccine.
AB - Background: The FAST (food allergy-specific immunotherapy) project aims at developing safe and effective subcutaneous immunotherapy for fish allergy, using recombinant hypoallergenic carp parvalbumin, Cyp c 1. Objectives: Preclinical characterization and good manufacturing practice (GMP) production of mutant Cyp (mCyp) c 1. Methods:Escherichia coli-produced mCyp c 1 was purified using standard chromatographic techniques. Physicochemical properties were investigated by gel electrophoresis, size exclusion chromatography, circular dichroism spectroscopy, reverse-phase high-performance liquid chromatography and mass spectrometry. Allergenicity was assessed by ImmunoCAP inhibition and basophil histamine release assay, immunogenicity by immunization of laboratory animals and stimulation of patients' peripheral blood mononuclear cells (PBMCs). Reference molecules were purified wild-type Cyp c 1 (natural and/or recombinant). GMP-compliant alum-adsorbed mCyp c 1 was tested for acute toxicity in mice and rabbits and for repeated-dose toxicity in mice. Accelerated and real-time protocols were used to evaluate stability of mCyp c 1 as drug substance and drug product. Results: Purified mCyp c 1 behaves as a folded and stable molecule. Using sera of 26 double-blind placebo-controlled food-challenge-proven fish-allergic patients, reduction in allergenic activity ranged from 10-to 5,000-fold (1,000-fold on average), but with retained immunogenicity (immunization in mice/rabbits) and potency to stimulate human PBMCs. Toxicity studies revealed no toxic effects and real-time stability studies on the Al(OH)3-adsorbed drug product demonstrated at least 20 months of stability. Conclusion: The GMP drug product developed for treatment of fish allergy has the characteristics targeted for in FAST: i.e. hypoallergenicity with retained immunogenicity. These results have warranted first-in-man immunotherapy studies to evaluate the safety of this innovative vaccine.
U2 - 10.1159/000371657
DO - 10.1159/000371657
M3 - Journal article
C2 - 25765512
SN - 1018-2438
VL - 166
SP - 41
EP - 51
JO - International Archives of Allergy and Immunology
JF - International Archives of Allergy and Immunology
IS - 1
ER -