The invention belongs to the field of biological medicines, and particularly relates to application of dapinustat in preparation of a
medicine for preventing and / or treating
mycobacterium tuberculosis infection. In-vitro experiments prove that dapunostat has remarkable inhibitory activity on a
mycobacterium tuberculosis standard strain, the
minimum inhibitory concentration (MIC) is 1 mu g / mL, and the
bactericidal effect of dapunostat under high bacterial load is superior to that of
rifampicin. The dapinustat and the
rifampicin have a synergistic effect. When dapunostat is combined with first-line antituberculosis drugs such as isoniazide,
bedaquiline and
ethambutol for use,
drug effects are added. In addition, the dapunostat has no obvious
toxicity to THP-1 human macrophages under an effective concentration. According to the invention, the new application of dapinustat in resisting
mycobacterium tuberculosis is found for the first time, a brand new candidate
drug and a
drug combination scheme with known safety are provided for treatment of tuberculosis, especially drug-
resistant tuberculosis, and the dapinustat has important clinical application value and development prospect.