A Novel Inhibitor against the Biofilms of Non-Tuberculous Mycobacteria
PATHOGENS(2024)
摘要
Non-tuberculous Mycobacteria (NTM), previously classified as environmental microbes, have emerged as opportunistic pathogens causing pulmonary infections in immunocompromised hosts. The formation of the biofilm empowers NTM pathogens to escape from the immune response and antibiotic action, leading to treatment failures. NF1001 is a novel thiopeptide antibiotic first-in-class compound with potent activity against planktonic/replicating and biofilm forms of various NTM species. It is potent against both drug-sensitive and -resistant NTM. It has demonstrated a concentration-dependent killing of replicating and intracellularly growing NTM, and has inhibited and reduced the viability of NTM in biofilms. Combination studies using standard-of-care (SoC) drugs for NTM exhibited synergetic/additive effects, but no antagonism against both planktonic and biofilm populations of Mycobacterium abscessus and Mycobacterium avium. In summary, the activity of NF1001 alone or in combination with SoC drugs projects NF1001 as a promising candidate for the treatment of difficult-to-treat NTM pulmonary diseases (NTM-PD) and cystic fibrosis (CF) in patients.
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关键词
drug resistance,planktonic,biofilm,non-tubercular mycobacteria,Mycobacterium abscessus (Mabs),Mycobacterium avium (Mav),Mycobacterium gordonae (Mgo),Mycobacterium kansasii (Mkan),Mycobacterium intracellulare (Mint),Mycobacterium nonchromogenicum (Mnc),cystic fibrosis (CF)
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