Description
PNU 100480 is an oxazolidinone antibiotic that is active against multidrug resistant tuberculosis. It inhibits the growth of
M. tuberculosis replicating and nonreplicating strains (MIC = ~400 ng/ml for both) and of clinical isolates that are susceptible or resistant to a combination of isoniazid , rifampin (rifampicin; ), ethambutol , and streptomycin (; MICs = ≤0.0625-0.5 mg/L). It also inhibits the growth of
P. insidiosum and
P. aphanidermatum clinical isolates (MICs = 4-64 μg/ml). PNU 100480 (100 mg/kg per day) decreases the number of colony forming units (CFU) in the lung in a mouse model of systemic nonreplicating
M. tuberculosis infection.
Biochem/physiol Actions
Sutezolid (PNU 100480) is an oxazolidinone antimicrobial. Sutezolid inhibits protein synthesis by inhibiting bacterial mRNA translation. Sutezolid is being investigated for the treatment of multiple drug–resistant and extensively drug-resistant tuberculosis. The compound is a less toxic and more potent derivative of linezolid.
