Unequivocal identification of intracellular aluminium adjuvant in a monocytic THP-1 cell line.

Unequivocal identification of intracellular aluminium adjuvant in a monocytic THP-1 cell line.
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DOI:
10.1038/srep06287
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发表时间:
2014-09-05
期刊:
影响因子:
4.6
通讯作者:
Exley C
Exley C
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Mold M;Eriksson H;Siesjö P;Darabi A;Shardlow E;Exley C

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基于氯霉素的佐剂(阿坝)是用于人类疫苗接种的主要佐剂。虽然尚未达成共识的阿坝的生物活性的病因学的几项研究已经确定的形状,结晶度和大小作为影响其佐剂的关键因素。尽管最近取得了进展,阿坝的命运后,他们的管理仍然不清楚。很少有研究表明细胞内阿坝的明确存在。在这里,我们证明了第一次明确的识别阿坝的单核细胞辅助性T细胞1(THP-1)细胞系内,使用荧光镓作为铝的荧光分子探针。这些新方法的使用表明,颗粒阿坝只存在于细胞质中。透射电子显微镜观察表明,阿坝存在于直径约0.5-1 μm的囊泡状结构中。 
Aluminium-based adjuvants (ABA) are the predominant adjuvants used in human vaccinations. While a consensus is yet to be reached on the aetiology of the biological activities of ABA several studies have identified shape, crystallinity and size as critical factors affecting their adjuvanticity. In spite of recent advances, the fate of ABA following their administration remains unclear. Few if any studies have demonstrated the unequivocal presence of intracellular ABA. Herein we demonstrate for the first time the unequivocal identification of ABA within a monocytic T helper 1 (THP-1) cell line, using lumogallion as a fluorescent molecular probe for aluminium. Use of these new methods revealed that particulate ABA was only found in the cell cytoplasm. Transmission electron microscopy revealed that ABA were contained within vesicle-like structures of approximately 0.5–1 μm in diameter.
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