A new antigen retrieval technique for human brain tissue.

A new antigen retrieval technique for human brain tissue.
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DOI:
10.1371/journal.pone.0003378
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发表时间:
2008
期刊:
影响因子:
3.7
通讯作者:
Giménez-Amaya JM
Giménez-Amaya JM
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Alelú-Paz R;Iturrieta-Zuazo I;Byne W;Haroutunian V;García-Villanueva M;Rábano A;García-Amado M;Prensa L;Giménez-Amaya JM

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组织的免疫组织化学染色是用于描绘抗原存在或不存在的强大工具。在过去的 30 年里,人类脑组织中抗原的可视化受到固定剂的掩蔽效应的显着限制。在本研究中,我们使用了一种新方法在福尔马林固定的人脑组织中进行抗原修复,并检查了该方案在短福尔马林固定时间和长福尔马林固定时间的组织中揭示隐藏抗原的有效性。这种基于柠康酸的新方法以前从未在脑组织中使用过,尽管它已被用于各种其他组织,如扁桃体、卵巢、皮肤、淋巴结、胃、乳房、结肠、肺和胸腺。因此,我们在此报告了一种在自由浮动的人脑切片中进行免疫组织化学研究的新方法。由于脑组织标本在甲醛中固定是脑库中常用的方法,因此这种新的抗原修复方法可以促进对福尔马林固定时间较长的大脑进行免疫组织化学研究。
Immunohistochemical staining of tissues is a powerful tool used to delineate the presence or absence of an antigen. During the last 30 years, antigen visualization in human brain tissue has been significantly limited by the masking effect of fixatives. In the present study, we have used a new method for antigen retrieval in formalin-fixed human brain tissue and examined the effectiveness of this protocol to reveal masked antigens in tissues with both short and long formalin fixation times. This new method, which is based on the use of citraconic acid, has not been previously utilized in brain tissue although it has been employed in various other tissues such as tonsil, ovary, skin, lymph node, stomach, breast, colon, lung and thymus. Thus, we reported here a novel method to carry out immunohistochemical studies in free-floating human brain sections. Since fixation of brain tissue specimens in formaldehyde is a commonly method used in brain banks, this new antigen retrieval method could facilitate immunohistochemical studies of brains with prolonged formalin fixation times.
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