Insect cell culture for industrial production of recombinant proteins. Insect cells used in conjunction with the baculovirus expression vector system BEVS are gaining ground rapidly as a platform for recombinant protein production. Insect cells present several comparative advantages to mammalian cells, such as ease of culture, higher tolerance to osmolality and by product concentration and higher expression levels when infected with a recombinant baculovirus. Here we review some of the recent developments in protein expression by insect cells and their potential application in large scale culture. Our current knowledge of insect cell metabolism is summarised and emphasis is placed on elements useful in the rational design of serum free media. The culture of insect cells in the absence of serum is reaching maturity, and promising serum substitutes hydrolysates, new growth and production enhancing factors are being evaluated. Proteolysis is a problem of the BEVS system due to its lytic nature, and can, therefore, be a critical issue in insect cell bioprocessing. Aspirin reference guide for safe and effective use from the American Society of HealthSystem Pharmacists AHFS DI. Several cell or baculovirus proteases are involved in degradation events during protein production by insect cells. Methods for proteolysis control, the optimal inhibitors and culture and storage conditions which affect proteolysis are discussed. Finally, engineering issues related to high density culture new bioreactor types, gas exchange, feeding strategies are addressed in view of their relevance to large scale culture.
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