Altogen Biosystems is a quality producer and custom research organization for genetic research. Custom biological products and other experiments include siRNA screening, optimization of preclinical research, stable transfection of cells, RNAi testing and more. Dedicated to benefiting researchers with state-of-the-art and specialized services, Altogen Biosystems aims to further modern clinical discoveries. Visit Altogen Biosystems’ catalog for custom brain cancer xenograft models .