Efficacy of antimicrobial therapy in experimental rat pneumonia: effects of impaired phagocytosis.
The importance of intact host defense mechanisms for successful antimicrobial therapy was investigated in an animal model. Recovery from lobar pneumococcal pneumonia as a result of penicillin therapy was studied in normal rats and in rats treated with cobra venom factor. This factor was used to selectively suppress the phagocytosis of pneumococci as a result of complement depletion. Although complete recovery from the infection occurred in normal rats after appropriate penicillin therapy, this was not the case in cobra venom factor-treated rats. Within the limitations of this study, evidence is presented for loss of antibiotic activity as a consequence of impaired phagocytosis.
The present invention relates to improved methods for the production of viral particles, viral vector particles and recombinant proteins. In particular, the invention relates to improved methods for the production of recombinant polyomaviral vector particles and polyomaviral vector production cell lines. More in particular, the invention relates to methods for the production of simian polyomaviral vector particles such as simian virus 40 (SV40) viral vector particles. The invention also relates to compositions comprising viral vectors and uses thereof and viral vector particles to treat genetic disorders, transplant rejection, autoimmune diseases, infectious diseases, allergies or cancer. The invention also relates to methods for the production of recombinant proteins in mammalian cells and methods to enhance the production of recombinant proteins in mammalian cells.