IQUIMEFA   05518
INSTITUTO QUIMICA Y METABOLISMO DEL FARMACO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Production of monoclonal antibodies from hybridoma cells immobilized in 3D sol-gel silica matrices
Autor/es:
DESIMONE MARTÍN; DE MARZI MAURICIO; ALVAREZ GISELA; MATHOV IRINA; LUIS EDUARDO DIAZ; EMILIO MALCHIODI
Lugar:
Mar del Plata
Reunión:
Congreso; XVIII Congreso Argentino de Bioingeniería; 2011
Resumen:
The immobilization of mammalian cells in suitable matrices that can retain their viability and
capability to produce certain metabolites has gained attention in recent years. In this work,
hybridoma cells were immobilized in sol-gel silica matrices for in vitro production of monoclonal
antibodies. For that purpose, different matrices were evaluated in terms of cell viability, antibody
diffusion to surrounding media and physicochemical properties of the polymeric material. Tetrakis
(2-ethoxyethyl) orthosilicate (THEOS) matrices were found to be the best option for hybridoma
immobilization. The concentrations of the silica precursor as well as the number of immobilized
cells were also optimized. Three hundred mM of THEOS precursor and 5 x 105
hybridoma cells
appear to be the most suitable alternative. Hybridoma cells immobilized in THEOS matrices were
able to produce monoclonal antibodies to the same extent as free cells, thus introducing the
possibility of using them in the design of bioreactors for large-scale production.