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Mol Med Rep:二球悬铃木花粉产生的Pla a 2过敏原的表达、纯化和表型分析

2017-11-17 AlexYang MedSci原创

悬铃木是户外人类过敏原的主要来源之一,并且能够诱导人类过敏性哮喘、鼻炎、接触性皮肤炎和其他过敏性疾病。Pla a 2是一种聚半乳糖醛酸酶并且在鉴定过的悬铃木木花粉中代表了主要过敏原。最近,有研究人员对Pla a 2进行了表达和春花,并且预测了Pla a 2的B和T细胞表型。研究人员将编码Pla a 2的基因克隆到了Pet28a载体中,随后转化到了DE3大肠杆菌细胞中,并将纯化过的Pla a 2进行

悬铃木是户外人类过敏原的主要来源之一,并且能够诱导人类过敏性哮喘、鼻炎、接触性皮肤炎和其他过敏性疾病。Pla a 2是一种聚半乳糖醛酸酶并且在鉴定过的悬铃木木花粉中代表了主要过敏原。最近,有研究人员对Pla a 2进行了表达和春花,并且预测了Pla a 2的B和T细胞表型。

研究人员将编码Pla a 2的基因克隆到了Pet28a载体中,随后转化到了DE3大肠杆菌细胞中,并将纯化过的Pla a 2进行蛋白免疫印迹分析。研究发现,在对悬铃木花粉过敏的病人的血清中,Pla a 2过敏原具有结合免疫球蛋白E的能力。另外,研究人员还利用DNAStar、生物信息学预测抗原肽和BepiPred1.0软件对Pla a 2的B细胞表型进行了预测;并利用NetMHCIIpan-3.0和-2.2对T细胞表型进行了预测。在他们的研究中,总共预测出了8种B细胞表型(15 24, 60 66, 78 86, 109 124, 232 240, 260 269, 298 306和315 322)和5种T细胞表型(62 67, 86 91, 125 132, 217 222 and 343 350)。最后,研究人员指出,这些发现也许能够用来改善过敏原免疫治疗效果,并且减少花粉相关的过敏性反应。

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    2017-11-19 tastas
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    2017-11-19 一叶知秋
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    2017-11-17 清风拂面

    谢谢分享.学习了

    0

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