New horizons in the treatment of tuberculosis

Biochemical Pharmacology
C E Barry

Abstract

The development of new chemotherapy for the treatment of tuberculosis has three major objectives: first, the development of faster-acting drugs to shorten the duration of treatment; second, the development of novel antimicrobials to counter the emergence of bacteria resistant to current therapies; and, third, the development of chemotherapeutics that specifically target dormant bacilli to treat the one-third of the world's population latently infected with tubercle bacilli. Strategies based upon optimizing the inhibition of known targets require an extensive knowledge of the detailed mechanism of action of current antimycobacterial agents. For many agents such as isoniazid, ethambutol, rifampin, and pyrazinamide such knowledge is now available. Strategies based upon the identification of novel targets will necessitate the identification of biochemical pathways specific to mycobacteria and related organisms. Many unique metabolic processes occur during the biosynthesis of mycobacterial cell wall components, and some attractive new targets have emerged. The development of targets specific to latency will require a detailed picture of the metabolism and biochemical pathways occurring in dormant bacilli. Recent evidence suggests th...Continue Reading

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