苏丹黑B降低大鼠肠道自发荧光及其在免疫荧光染色中的应用

doi:10.16098/j.issn.0529-1356.2020.03.024

解剖学报 ›› 2020, Vol. 51 ›› Issue (3): 450-455.doi: 10.16098/j.issn.0529-1356.2020.03.024

苏丹黑B降低大鼠肠道自发荧光及其在免疫荧光染色中的应用

李勇¹ 周立¹ 张阳¹ 刘震² 姚念²申凤鸽¹王志勇^1*

1.新乡医学院人体解剖学教研室，河南新乡 453003; 2. 新乡医学院基础医学院，河南新乡 453003

收稿日期:2019-11-06 修回日期:2020-02-11 出版日期:2020-06-06 发布日期:2020-06-06
通讯作者: 王志勇 E-mail:wanliheng@vip.163.com
基金资助:
新乡医学院博士科研启动基金

Sudan black B reducing the intestinal autofluorescence of rats and its application in immunofluorescence

LI Yong¹ ZHOU Li¹ ZHANG Yang¹ LIU Zhen² YAO Nian² SHEN Feng-ge¹ WANG Zhi-yong^1*

1. Department of Human Anatomy, Xinxiang Medical University, He’nan Xinxiang 453003, China; 2. School of Basic Medical Sciences, Xinxiang Medical University, He’nan Xinxiang 453003, China

Received:2019-11-06 Revised:2020-02-11 Online:2020-06-06 Published:2020-06-06
Contact: WANG Zhi-yong E-mail:wanliheng@vip.163.com

摘要/Abstract

摘要：

目的探讨降低大鼠肠道组织自发荧光的简便可行方法。方法取正常SD大鼠（n=5）肠道做冷冻切片，荧光显微镜下观察自发荧光（AF），检测苏丹黑B（SBB）对AF的影响及其在肠道免疫荧光（IF）染色中的应用。结果大鼠各肠段组织在FITC和TRITC通道存在大量明显的AF，且不受血清封闭的影响；应用0.3% SBB处理组织10 min，可显著降低AF；IF染色加SBB处理后的肠道可见AF显著降低，目的蛋白的荧光表达不受影响。结论 0.3% SBB染色10 min能显著降低大鼠肠道组织的AF，使IF特异性染色更加鲜明。

关键词: 肠道, 自发荧光, 苏丹黑B, 免疫荧光, 大鼠

Abstract:

Objective To develop a feasible method to reduce the rat intestinal autofluorescence (AF). Methods Five rats were sacrificed. After cryostat section, intestinal AF was investigated by immunofluorescence (IF) before and after Sudan black B (SBB) treatment. Results The AF within the different rat intestinal segments was easily detected in both FITC- and TRITC-channel spectrum, which was not affected by serum blocking. After 0.3% SBB treatment for 10 minutes, a significant reduction of AF was observed in the rat intestinal tissue. Moreover, the SBB treatment did not affect the expression of CD45 in the rat intestine detected by IF staining, but reduced the AF remarkedly. Conclusion The AF in rat intestinal frozen section can be effectively reduced with 0.3% SBB treatment for 10 minutes.

Key words: Intestine, Autofluorescence, Sudan black B, Immunofluorescence, Rat

中图分类号:

R338.2

李勇周立张阳刘震姚念申凤鸽王志勇. 苏丹黑B降低大鼠肠道自发荧光及其在免疫荧光染色中的应用[J]. 解剖学报, 2020, 51(3): 450-455.

LI Yong ZHOU Li ZHANG Yang LIU Zhen YAO Nian SHEN Feng-ge WANG Zhi-yong. Sudan black B reducing the intestinal autofluorescence of rats and its application in immunofluorescence[J]. Acta Anatomica Sinica, 2020, 51(3): 450-455.

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苏丹黑B降低大鼠肠道自发荧光及其在免疫荧光染色中的应用

Sudan black B reducing the intestinal autofluorescence of rats and its application in immunofluorescence

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