对Bothrops alternatus毒蛋白进行毒性和F(ab') 2抗毒性研究
Luciano S Fusco1, Emidio Beraldo-Neto2, Juan J Calvete3
1Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Química Básica y Aplicada del Nordeste Argentino (IQUIBA-NEA), Corrientes, Argentina; Facultad de Ciencias Exactas y Naturales y Agrimensura, Universidad Nacional del Nordeste (UNNE), Avenida Libertad 5470, 3400 Corrientes, Argentina.
International journal of biological macromolecules
|June 1, 2025
概括
这项研究描述了Bothrops alternatus毒素蛋白质,并评估了两种抗毒素. 与BIOL抗毒剂相比,INPB抗毒剂对B. alternatus蛇毒具有更高的结合能力和效力,与BIOL抗毒剂相比.
科学领域:
- 蛋白质组学是指蛋白质组学.
- 毒理学 毒理学 毒理学
- 免疫学 免疫学 免疫学
背景情况:
- 在阿根廷,Bothrops alternatus (yarará) 的中毒是严重的公共卫生问题.
- 有效的抗毒疗法对于控制蛇咬伤至关重要.
- 描述毒素成分和抗毒素有效性对于改善治疗结果至关重要.
研究的目的:
- 为了对Bothrops alternatus venom进行全面的毒性表征.
- 进行一种抗毒性分析,比较两种商用抗毒剂 (BIOL和INPB) 的结合能力.
- 整合体外和体内数据,以评估这些抗毒素对B. alternatus毒素的强度和有效性.
主要方法:
- 蛋白质组分析以识别和量化来自B. alternatus.的毒素蛋白质.
- 使用F(ab') 2抗毒剂进行抗毒性分析,以评估与毒素成分的结合亲和力.
- 在体外结合能力测定和体内强度研究,以评估抗毒药的有效性.
主要成果:
- B. alternatus毒素蛋白质组是复杂的,主要的毒素家族包括PIII-SVMP,PII-SVMP,Disintegrin-SVMP,SVSP和PLA2.
- 无论是BIOL和INPB抗毒素都识别了大多数毒素蛋白,但对小的亲和力较低.
- 与BIOL抗毒剂相比,INPB抗毒剂具有显著更高的结合能力 (124.78 mg/g F(ab') 2) 和体内强度 (129.38 mg/g F(ab') 2) 相比,BIOL抗毒剂的结合能力分别为56.92 mg/g F(ab') 2和63.28 mg/g F(ab') 2).
结论:
- 第三代抗毒药物为B. alternatus envenomation的抗毒特征提供了宝贵的见解.
- 与BIOL抗毒药相比,INPB抗毒药在体外和体内表现出更高的疗效.
- 这项研究提供了对阿根廷抗毒药B. alternatus的毒药和抗毒药的第一次比较分析,整合了多种方法.
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