巴西绿蜂胶提取物作为 COVID-19 潜在治疗方法的计算机模拟研究。
An In Silico Investigation of Brazilian Green Propolis Extracts as Potential Treatment for COVID-19.
作者信息
Ferreira Júnior Jeronimo Geraldo, Seibert Janaína Brandão, Rebello Dos Santos Viviane Martins, Dutra Sousa Lucas Resende, Roquete Amparo Tatiane, Valverde Thalita Marcolan, Santos Vagner Rodrigues, Alvarenga de Carvalho Oliveira Junnia, Melo de Abreu Vieira Paula, de Oliveira Machado Vagner, Andrade Ângela Leão
机构信息
Departamento de Química, Universidade Federal de Ouro Preto, Ouro Preto 35400-000, Brasil.
Departamento de Química, Universidade Federal de São Carlos, São Carlos 13565-905, Brasil.
出版信息
ACS Omega. 2025 Aug 5;10(32):35651-35665. doi: 10.1021/acsomega.5c02121. eCollection 2025 Aug 19.
The absence of a specific antiviral treatment for the highly virulent and lethal coronavirus disease 2019 (Covid-19) remains a significant challenge. The potential of natural agents with immune-promotion capabilities, including apitherapy products, is being investigated as a potential therapeutic modality. Propolis is characterized by a high concentration of bioactive compounds, which exhibit significant antimicrobial, bactericidal, antiviral, anti-inflammatory, immunomodulatory, and antioxidant properties. This study investigated the potential of ethanolic extracts of Brazilian green propolis for COVID-19 treatment. Propolis extracts were obtained at room (EEPV-F) and under 70 °C-heat (EEPV-Q) temperatures, and the extraction yields were 36.74% and 53.54%, respectively. Total flavonoid contents (10.6 ± 0.9 and 6.6 ± 0.2 mg QE g), total phenolic compounds (44 ± 2 and 66 ± 3 mg GAE g), and antioxidant capacity by DPPH (IC values of 18.0 ± 0.3 and 16.6 ± 0.5 μg mL) and ABTS (IC values of 16.6 ± 0.02 and 15.3 ± 0.2 μg mL) assays were determined. The extracts were not cytotoxic to RAW 264.7 macrophages and exhibited dose-dependent anti-inflammatory activity, particularly EEPV-Q. All EEPV-Q concentrations significantly reduced nitric oxide production and demonstrated suitability for further investigation. Molecular docking analysis revealed that the compound guibourtinidol-(4alpha→8)-epiafzelechin exhibited stronger binding affinity for PLpro, RdRp, and Spike-analyzed enzymes. Both EEPV-F and EEPV-Q presented hemolytic activity below 5% across all tested concentrations. Given the limited therapeutic options available for COVID-19, the utilization of green propolis as a therapeutic agent has emerged as a promising and relevant approach. This natural product possesses several advantages, including its safety, ease of oral administration, and its availability as both a natural supplement and a functional food.
对于高致病性和致死性的2019冠状病毒病(Covid-19),缺乏特异性抗病毒治疗仍然是一项重大挑战。包括蜂疗产品在内的具有免疫促进能力的天然药物的潜力正在作为一种潜在的治疗方式进行研究。蜂胶的特点是含有高浓度的生物活性化合物,这些化合物具有显著的抗菌、杀菌、抗病毒、抗炎、免疫调节和抗氧化特性。本研究调查了巴西绿蜂胶乙醇提取物用于治疗Covid-19的潜力。蜂胶提取物分别在室温(EEPV-F)和70℃加热(EEPV-Q)条件下获得,提取率分别为36.74%和53.54%。测定了总黄酮含量(10.6±0.9和6.6±0.2 mg QE/g)、总酚化合物(44±2和66±3 mg GAE/g)以及通过DPPH(IC值为18.0±0.3和16.6±0.5 μg/mL)和ABTS(IC值为16.6±0.02和15.3±0.2 μg/mL)测定的抗氧化能力。提取物对RAW 264.7巨噬细胞无细胞毒性,并表现出剂量依赖性抗炎活性,尤其是EEPV-Q。所有EEPV-Q浓度均显著降低一氧化氮生成,并显示适合进一步研究。分子对接分析表明,化合物吉贝欧苷元-(4α→8)-表阿夫儿茶素对PLpro、RdRp和Spike分析酶表现出更强的结合亲和力。在所有测试浓度下,EEPV-F和EEPV-Q的溶血活性均低于5%。鉴于Covid-19可用的治疗选择有限,利用绿蜂胶作为治疗剂已成为一种有前景且相关的方法。这种天然产物具有多种优点,包括其安全性、易于口服给药以及作为天然补充剂和功能性食品的可得性。
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