Altogen Biosystems is a global provider and custom research organization for genetic research. Biological services and other experiments include ELISA testing, cell transfection optimization, stable transfection of cells, RNAi testing and more. Dedicated to helping customers with state-of-the-art and specialized services, Altogen Biosystems strives to advance modern clinical discoveries. Visit the official xenograft catalogue for a Calu-3 xenograft model .