PMID- 35268586 OWN - NLM STAT- MEDLINE DCOM- 20220323 LR - 20220323 IS - 1420-3049 (Electronic) IS - 1420-3049 (Linking) VI - 27 IP - 5 DP - 2022 Feb 22 TI - Anti-Biofilm and Anti-Hemolysis Activities of 10-Hydroxy-2-decenoic Acid against Staphylococcus aureus. LID - 10.3390/molecules27051485 [doi] LID - 1485 AB - Persistent infections caused by Staphylococcus aureus biofilms pose a major threat to global public health. 10-Hydroxy-2-decenoic acid (10-HDA), a main fatty acid in royal jelly, has been shown to possess various biological activities. The purpose of this study was to explore the effects of 10-HDA on the biofilms and virulence of S. aureus and its potential molecular mechanism. Quantitative crystal violet staining indicated that 10-HDA significantly reduced the biofilm biomass at sub-minimum inhibitory concentration (MIC) levels (1/32MIC to 1/2MIC). Scanning electron microscope (SEM) observations demonstrated that 10-HDA inhibited the secretion of extracellular polymeric substances, decreased bacterial adhesion and aggregation, and disrupted biofilm architecture. Moreover, 10-HDA could significantly decrease the biofilm viability and effectively eradicated the mature biofilms. It was also found that the hemolytic activity of S. aureus was significantly inhibited by 10-HDA. qRT-PCR analyses revealed that the expressions of global regulators sarA, agrA, and alpha-hemolysin gene hla were downregulated by 10-HDA. These results indicate that 10-HDA could be used as a potential natural antimicrobial agent to control the biofilm formation and virulence of S. aureus. FAU - Gao, Kuankuan AU - Gao K AD - State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. AD - Key Laboratory of Shandong Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. FAU - Su, Bei AU - Su B AD - State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. AD - Key Laboratory of Shandong Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. FAU - Dai, Jing AU - Dai J AD - Key Laboratory of Shandong Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. FAU - Li, Piwu AU - Li P AD - State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. AD - Key Laboratory of Shandong Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. FAU - Wang, Ruiming AU - Wang R AD - State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. AD - Key Laboratory of Shandong Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. FAU - Yang, Xiaohui AU - Yang X AUID- ORCID: 0000-0002-2493-2641 AD - State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. AD - Key Laboratory of Shandong Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. LA - eng GR - ZR2020MC049/Shandong Provincial Natural Science Foundation/ PT - Journal Article DEP - 20220222 PL - Switzerland TA - Molecules JT - Molecules (Basel, Switzerland) JID - 100964009 SB - IM MH - *Staphylococcus aureus PMC - PMC8912057 OTO - NOTNLM OT - 10-hydroxy-2-decenoic acid OT - Staphylococcus aureus OT - biofilm OT - hemolytic activity COIS- The authors declare no conflict of interest. EDAT- 2022/03/11 06:00 MHDA- 2022/03/24 06:00 PMCR- 2022/02/22 CRDT- 2022/03/10 15:30 PHST- 2022/01/28 00:00 [received] PHST- 2022/02/17 00:00 [revised] PHST- 2022/02/18 00:00 [accepted] PHST- 2022/03/10 15:30 [entrez] PHST- 2022/03/11 06:00 [pubmed] PHST- 2022/03/24 06:00 [medline] PHST- 2022/02/22 00:00 [pmc-release] AID - molecules27051485 [pii] AID - molecules-27-01485 [pii] AID - 10.3390/molecules27051485 [doi] PST - epublish SO - Molecules. 2022 Feb 22;27(5):1485. doi: 10.3390/molecules27051485.