METHODS: Liquid chromatography coupled with high-resolution mass spectrometry using the quadrupole orbital ion trap analyser (i.e., UHPLC-Q-Orbitrap HRMS) was adopted to measure the polyphenols content of a new nutraceutical formula (Solution-3). Viral infections with SARS-CoV-2 (EG.5), FLU-A and RSV-A viruses (as performed in BLS3 authorised laboratory) and real time RT-PCR (qPCR) assay were used to test the antiviral action of the nutraceutical formula. Dilution susceptibility tests have been used to estimate the minimum inhibitory and bactericidal concentration (MIC and MBC, respectively) of Solution-3 on a variety of microorganisms belonging to Gram positive/ negative bacteria and fungi. Transcriptomic data analyses and functional genomics (i.e., RNAseq and data mining), coupled to qPCR and ELISA assays have been used to investigate the mechanisms of action of the nutraceutical formula on those processes involved in innate immune response.
RESULTS: Here, we have tested the combination of natural products containing higher amounts of polyphenols (i.e., propolis, Verbascum thapsus L., and Thymus vulgaris L.), together with the inorganic long chain polyphosphates \'polyPs\' with antiviral, antibacterial, and antifungal behaviours, against SARS-CoV-2, FLU-A, RSV-A, Gram positive/ negative bacteria and fungi (i.e., Candida albicans). These components synergistically exert an immunomodulatory action by enhancing those processes involved in innate immune response (e.g., cytokines: IFNγ, TNFα, IL-10, IL-6/12; chemokines: CXCL1; antimicrobial peptides: HBD-2, LL-37; complement system: C3).
CONCLUSIONS: The prophylactic antimicrobial success of this nutraceutical formula against SARS-CoV-2, FLU-A and RSV-A viruses, together with the common bacteria and fungi co-infections as present in human oral cavity, is expected to be valuable.
方法:使用四极轨道离子阱分析仪的液相色谱与高分辨率质谱联用(即,UHPLC-Q-OrbitrapHRMS)用于测量新的营养配方(Solution-3)的多酚含量。SARS-CoV-2(EG.5)病毒感染,使用FLU-A和RSV-A病毒(在BLS3授权实验室中进行)和实时RT-PCR(qPCR)测定来测试营养配方的抗病毒作用。稀释敏感性试验已用于估计最小抑制和杀菌浓度(MIC和MBC,分别)对属于革兰氏阳性/阴性细菌和真菌的各种微生物的溶液-3。转录组数据分析和功能基因组学(即,RNAseq和数据挖掘),与qPCR和ELISA测定相结合,已用于研究营养配方对先天免疫应答过程的作用机制。
结果:这里,我们已经测试了含有较高量多酚的天然产物的组合(即,蜂胶,VerbascumthapsusL.,和胸腺寻常L.),连同具有抗病毒作用的无机长链多磷酸盐,抗菌,和抗真菌行为,对抗SARS-CoV-2,FLU-A,RSV-A,革兰氏阳性/阴性细菌和真菌(即,白色念珠菌)。这些组分通过增强参与先天免疫应答的那些过程协同发挥免疫调节作用(例如,细胞因子:IFNγ,TNFα,IL-10,IL-6/12;趋化因子:CXCL1;抗微生物肽:HBD-2,LL-37;补体系统:C3)。
结论:该营养食品配方对SARS-CoV-2,FLU-A和RSV-A病毒的预防性抗菌成功,以及人类口腔中常见的细菌和真菌共感染,预计是有价值的。