Yi Zhang1, Li Zhou1, Linqiao Tang1, Tingwu Qin2, Liangju Ning3. 1. Research Core Facility of West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China. 2. Laboratory of Stem Cell and Tissue Engineering, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China. 3. Laboratory of Stem Cell and Tissue Engineering, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China.nlj1024@163.com.
Abstract
OBJECTIVE: To explore a rapid histological preparation method to observe morphology and composition distribution of tendon collagen fascicle and endotendinum. METHODS: Taking porcine superflexor tendon of foot as an example, tendons were sliced into sections with 6 μm by frozen section technology, after which general observation of the section integrity was carried out. After fixed with 10% neutral buffered formalin and performed with HE staining, the tissue integrity and ice crystal formation were observed under microscope. Sections were then divided into 5 groups by different methods of dyeing. Group A: Priodic acid-Shiff (PAS) staining; group B: Masson staining; group C: reticular fibers staining; group D: immunohistochemical and immunofluorescent staining of type Ⅲ collagen; group E: the sections were baked at 65℃ for 10 minutes and stained with Masson. The composition distribution of tendon collagen fascicle and endotendinum in different groups were observed. RESULTS: From general observation, the frozen section of tendon tissue was complete and continuous. Although the tissue integrity in the tendon sections could be seen and no ice crystal was formed, the composition distribution could not be identified by HE staining. The entire tendons in groups A, B, and C were dyed, and the composition distribution of collagen fascicle and endotendinum could not be identified. The endotendinum in group D was stained weakly positive for type Ⅲ collagen alone, and the two components were differentiated dyed but the contrast was not obvious. In group E, the collagen fascicle and endotendinium were differentiated dyed and the two components in tendon tissue were clearly visible. CONCLUSION: The morphology and the composition distribution of tendon collagen fascicle and endotendinum can be characterized rapidly and accurately, using a combination of baking at 65℃ for 10 minutes and Masson staining after porcine superflexor tendons were sliced by frozen section technology.
OBJECTIVE: To explore a rapid histological preparation method to observe morphology and composition distribution of tendon collagen fascicle and endotendinum. METHODS: Taking porcine superflexor tendon of foot as an example, tendons were sliced into sections with 6 μm by frozen section technology, after which general observation of the section integrity was carried out. After fixed with 10% neutral buffered formalin and performed with HE staining, the tissue integrity and ice crystal formation were observed under microscope. Sections were then divided into 5 groups by different methods of dyeing. Group A: Priodic acid-Shiff (PAS) staining; group B: Masson staining; group C: reticular fibers staining; group D: immunohistochemical and immunofluorescent staining of type Ⅲ collagen; group E: the sections were baked at 65℃ for 10 minutes and stained with Masson. The composition distribution of tendon collagen fascicle and endotendinum in different groups were observed. RESULTS: From general observation, the frozen section of tendon tissue was complete and continuous. Although the tissue integrity in the tendon sections could be seen and no ice crystal was formed, the composition distribution could not be identified by HE staining. The entire tendons in groups A, B, and C were dyed, and the composition distribution of collagen fascicle and endotendinum could not be identified. The endotendinum in group D was stained weakly positive for type Ⅲ collagen alone, and the two components were differentiated dyed but the contrast was not obvious. In group E, the collagen fascicle and endotendinium were differentiated dyed and the two components in tendon tissue were clearly visible. CONCLUSION: The morphology and the composition distribution of tendon collagen fascicle and endotendinum can be characterized rapidly and accurately, using a combination of baking at 65℃ for 10 minutes and Masson staining after porcine superflexor tendons were sliced by frozen section technology.
Authors: Yi-Zhou Huang; Jing-Jing Wang; Yong-Can Huang; Cheng-Guang Wu; Yi Zhang; Chao-Liang Zhang; Lin Bai; Hui-Qi Xie; Zhao-Yang Li; Li Deng Journal: Mater Sci Eng C Mater Biol Appl Date: 2017-11-11 Impact factor: 7.328
Authors: Ting-Wu Qin; Qingshan Chen; Yu-Long Sun; Scott P Steinmann; Peter C Amadio; Kai-Nan An; Chunfeng Zhao Journal: J Biomed Mater Res B Appl Biomater Date: 2012-02-10 Impact factor: 3.368