中英文说明丨艾美捷OZ Biosciences氢氧化铝疫苗佐剂

上一篇 / 下一篇  2023-04-10 15:27:36/ 个人分类:生化试剂

AlumVax Hydroxide is wet gel (colloidal) of aluminum hydroxide 2%, provided as a ready-to-use suspension.

 

Aluminum hydroxide is the most common adjuvant used in approved prophylactic vaccines because of its excellent safety profile and ability to enhance protective humoral immune response. Since more than 80 years, it has been observed that aluminium compounds act by a depot effect and also by direct activation of the immune cells. Adsorption or entrapment of antigens in aggregates through hydrophobic and electrostatic interactions favors a high local antigen concentration and improved uptake by antigen presentating cells (APC).

 

AlumVax hydroxide is a crystalline aluminum oxyhydroxide that is positively charged at physiological pH (pI=11), suitable for adsorption of negatively charged, acidic proteins (such as albumin).

 

氢氧化铝是氢氧化铝2%的湿凝胶(胶体),作为即用型悬浮液提供。

 

氢氧化铝是批准的预防性疫苗中极为常用的佐剂,因为它具有出色的安全性和增强保护性体液免疫应答的能力。80多年来,人们已经观察到铝化合物通过仓库效应和直接激活免疫细胞起作用。通过疏水和静电相互作用吸附或包埋聚集体中的抗原有利于高局部抗原浓度和改善抗原呈递细胞(APC)的摄取。

 

艾美捷OZ Biosciences氢氧化铝疫苗佐剂#AH0050是一种结晶氢氧化铝,在生理pH值(pI=11)下带正电荷,适用于吸附带负电荷的酸性蛋白质(如白蛋白)。

 

OZ Biosciences氢氧化铝疫苗佐剂结果示例:

21.png

 

图1:先天免疫系统细胞对注射Ag+/-明矾佐剂的反应。注射吸附在小鼠明矾(OVA-明矾)上的卵清蛋白(OVA)诱导单核细胞趋化蛋白(MCP1;CCL2),中性粒细胞趋化素KC(CXCL1)和嗜酸性粒细胞趋化素-1(CCL11)与单独接受OVA的小鼠相比(改编自Kool M.等人,J Exp Med. 2008; 205(4):869-82)。

图2:明矾诱导的先天炎症反应。小鼠腹腔注射卵清蛋白(OVA)或OVA-氢氧化铝。24H后,通过流式细胞术在腹膜灌洗中测定中性粒细胞,嗜酸性粒细胞和单核细胞以及树突状细胞的数量(改编自Kool M.等人,J Immunol. 2008; 181(6):3755-9)。

 

来源:https://www.amyjet.com/products/OZB-AH0050.shtml


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