Utilization of digital image processing to study dynein arms (ATPase) in normal and immotile cilia.

Utilization of digital image processing to study dynein arms (ATPase) in normal and immotile cilia.
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利用数字图像处理研究正常和不动纤毛中的动力蛋白臂(ATP酶)。

DOI:
10.1002/jemt.1060080202
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发表时间:
1988
期刊:
Journal of electron microscopy technique
影响因子:
--
通讯作者:
Edwards,DF
Edwards,DF
中科院分区:
--
文献类型:
--
作者:
Kennedy,JR;Dunlap,JR;Bunn,RD;Edwards,DF

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用扫描电子显微镜对气管纤毛横断面进行检查,并将图像数字化以进行图像增强。每幅纤毛图像的灰度级直方图被生成并处理以增强动态手臂的图像。用这种技术检查了猪、兔和狗的气管上皮组织,包括患有静止纤毛综合征的狗。每只动物的组织分别用三种不同的固定剂固定,并对切片进行动力蛋白手臂的保存评估。同样的固定剂在所有三种被检查的物种中并不总是为睫状肌动力蛋白臂提供最佳的固定。因此,必须对每一种纤毛进行评估,以确定保存正常纤毛超微结构的最佳固定剂。数字图像处理提供了一种原位增强动态蛋白手臂的机制,而不需要增加特殊的染色或使用图像求和等技术。这项技术已经证明,患有纤毛不动综合症的狗的纤毛上大约三分之二的动力蛋白外臂部分或完全缺失。
Tracheal ciliary cross sections were examined with scanning transmission electron microscopy and the resultant images were digitized for image enhancement. A gray‐scale histogram of each ciliary image was produced and manipulated to enhance the image for dynein arms. Tracheal epithelial tissue from the pig, rabbit, and dog, including dogs with immotile cilia syndrome, was examined by using this technique. Tissue from each animal was fixed with each of three different fixatives and sections were evaluated for preservation of dynein arms. The same fixative did not consistently provide optimal fixation for ciliary dynein arms in all three species examined. Each species, therefore, must be evaluated to determine the optimal fixative for preservation of normal ciliary ultrastructure. Digital image processing provides a mechanism for enhancing dynein arms in situ without the need for addition of special stains or the use of techniques such as image summation. With this technique it has been shown that about two‐thirds of outer dynein arms are partially or completely missing on cilia from dogs with immotile cilia syndrome.
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影响因子: --
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DOI: --
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