Sanguinarine, similar to the MICs of spectinomycin, exhibits good anti-Neisseria gonorrhoeae activity in vitro.

The increasing antibiotic resistance of Neisseria gonorrhoeae (NG) is an urgent need to explore new and effective drugs. The antibacterial activities of spectinomycin and sanguinarine against 117 clinical NG isolates and time-kill curve of sanguinarine were evaluated. Almost all isolates were resistant to penicillin (91.5%) and ciprofloxacin (96.5%), 8.5% showed resistance to azithromycin, 10.3% and 10.3% had decreased susceptibility/resistance to ceftriaxone and cefixime, respectively, whereas 100% were susceptible to spectinomycin. The minimum inhibitory concentration (MIC) ranges, MIC50, MIC90 and MICmean values of sanguinarine were 2-64 μg/ml, 16 μg/ml, 32 μg/ml and 16.9 μg/ml, respectively, and time-kill curve showed killing of bacteria in a dose-dependent manner during the assay time of 6h, very similar to spectinomycin. Sanguinarine has great potential as an effective and novel anti-NG agent. Copyright © 2023 Japanese Society of Chemotherapy, Japanese Association for Infectious Diseases, and Japanese Society for Infection Prevention and Control. Published by Elsevier Ltd. All rights reserved.

Citation

Jingyao Liang, Xiaodong Li, Chao Bi, Yihui Yu, Wenyan Liu, Xibao Zhang, Wenling Cao. Sanguinarine, similar to the MICs of spectinomycin, exhibits good anti-Neisseria gonorrhoeae activity in vitro. Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy. 2023 Sep;29(9):927-929

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PMID: 37295648

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