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Abstract

Biology

获得全兔眼的高质量冷冻切片

Published: November 10th, 2023

DOI:

10.3791/66115

1Keck School of Medicine, University of Southern California, 2The Vision Center, Department of Surgery, Children’s Hospital Los Angeles, 3The Saban Research Institute, Children’s Hospital Los Angeles, 4USC Roski Eye Institute, Department of Ophthalmology, Keck School of Medicine, University of Southern California, 5Eli and Edythe Broad CIRM Center for Regenerative Medicine and Stem Cell Research, University of Southern California, 6Tina and Rick Caruso Department of Otolaryngology-Head and Neck Surgery, University of Southern California

Abstract

该协议描述了如何在较大的动物(如兔子)中获得高质量的视网膜冷冻切片。摘除后,将眼睛短暂浸入固定剂中。然后,去除角膜和虹膜,将眼睛放置过夜,以便在4°C下进行额外固定。 固定后,将镜片取下。然后将眼睛放入冷冻模型中,并填充嵌入培养基。通过去除晶状体,嵌入介质可以更好地进入玻璃体,并导致更好的视网膜稳定性。重要的是,眼睛应在包埋培养基中孵育过夜,以使眼睛完全浸润整个玻璃体。孵育过夜后,将眼睛冷冻在干冰上并切片。可以获取整个视网膜切片用于免疫组化。标准染色方案可用于研究视网膜组织内抗原的定位。遵守该协议可产生高质量的视网膜冷冻切片,可用于任何利用免疫组织化学的实验。

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