脑切片酪氨酸羟化酶(TH)免疫荧光染色
浏览实验方案脑切片经4% PFA/PBS洗涤、10%驴血清/0.3% Triton-X封闭后,以鸡抗TH抗体ab76442(1:200)和抗鸡IgG荧光二抗(1:1000)孵育,Mowiol封片并以荧光显微镜成像,用于TH阳性胞体与纤维的定位观察。
适用范围与方法
样本:脑组织切片(游离漂浮切片;来源方案为小鼠脑切片)
- alpha-synuclein PFF-injected rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- DJ-1 knockout rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- Parkin knockout rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- PINK1 knockout rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- LRRK2 R1441C knock-in mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- E46K alpha-synuclein BAC transgenic rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- AAV-human alpha-synuclein overexpression rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- Paraquat-treated rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- Paraquat-treated mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- Rotenone-treated rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- TCE-treated Lewis rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- Snca G51D knock-in mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- LRRK2 R1441G BAC transgenic mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- BAC human SNCA transgenic rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- AAV-human alpha-synuclein overexpression mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- 6-OHDA-lesioned mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- A53T alpha-synuclein transgenic mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- MPTP-treated mouse (strain not specified)
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- MitoPark mouse
- 年龄
- 20-30 weeks in cited studies
- 性别
- 混合
- 组织
- substantia nigra and striatum
- C57BL/6 MPTP 黑质纹状体变性参考模型(文献参考)
- 年龄
- 来源未报告周龄
- 组织
- 脑(黑质致密部与纹状体)
- 6-OHDA 损伤帕金森样模型(大鼠,文献参考)
- 年龄
- 来源未报告周龄
- 组织
- 脑(黑质与纹状体)
- Parkin knockout mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- DJ-1 knockout mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- Rotenone-treated mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- A30P alpha-synuclein transgenic mouse (Thy1 promoter)
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- alpha-synuclein PFF-injected C57BL/6J mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- MPTP-treated Swiss mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- 6-OHDA-lesioned C57BL/6 mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- Reserpine-treated mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- LRRK2 G2019S knock-in mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- 6-OHDA-lesioned Sprague-Dawley rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- Rotenone-treated Wistar rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- PINK1 knockout mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- Paraquat plus maneb-treated mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- LPS-induced hemiparkinsonian rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- 6-OHDA-lesioned Wistar rat
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- LRRK2 G2019S transgenic mouse
- 年龄
- age as reported in the cited study
- 组织
- substantia nigra and striatum
- MPTP-lesioned non-human primate
- 年龄
- 8 years
- 性别
- 雄性
- 组织
- brain sections
试剂与材料
实验流程
脑切片洗涤
用4% PFA/PBS洗涤脑切片一次。
去除固定液
以轻柔摇动或旋转5分钟,确保彻底去除固定液。
PBS漂洗
用PBS短暂漂洗,去除残留PFA。
封闭液配制
配制含10%驴血清和0.3% Triton-X的PBS封闭液。
封闭
室温下将切片在封闭液中孵育1小时,以减少非特异性结合。
均匀封闭
将切片置于摇床或旋转器上,使切片均匀接触封闭液。
一抗工作液配制
按下列组成配制一抗工作液。
加入鸡抗TH一抗
鸡抗TH抗体(Abcam,货号ab76442)。
稀释一抗
用含2.5%驴血清和0.3% Triton-X的PBS将一抗按1:200稀释。
一抗孵育
切片与一抗在室温孵育1小时。
湿盒孵育
在湿盒中孵育,防止液体蒸发。
一抗后洗涤
用PBS洗涤切片三次,每次5分钟。
轻柔洗涤
洗涤过程中保持轻柔摇动或旋转。
二抗孵育
与针对鸡IgG的荧光偶联二抗按1:1000在室温孵育1小时。
避光
避光以保护荧光。
终末洗涤
用PBS洗涤切片三次,每次5分钟。
避光洗涤
在避光条件下完成洗涤,以维持荧光完整性。
贴片
将切片贴于包被载玻片上。
Mowiol封片
用Mowiol封片介质覆盖切片并加盖玻片。
干燥
避光干燥至少30分钟后再成像。
荧光显微镜成像
使用Leica DM6000 B显微镜和10×物镜观察切片。
选择滤光片
使用合适的荧光滤光片组检测二抗信号。
调整曝光
调整曝光设置以优化信噪比。
质量控制与输出
按来源保留4% PFA/PBS初次洗涤、10%驴血清/0.3% Triton-X封闭1小时、鸡抗TH ab76442按1:200稀释并孵育1小时、抗鸡IgG荧光二抗按1:1000稀释并孵育1小时、PBS洗涤三次各5分钟及避光条件;成像使用合适荧光滤光片组并调整曝光以优化信噪比。来源未规定阴性对照、体视学计数或多巴胺浓度测定。
以荧光显微镜在脑切片中观察TH阳性胞体与纤维并采集图像;本方案输出为免疫荧光染色与成像结果,不包含体视学细胞计数、纤维密度阈值或纹状体多巴胺浓度测定。
参考文献
- Marta Graziano, Ioannis Mantas, Konstantinos Meletis. Immunohistochemistry for Tyrosine Hydroxylase (TH) Detection in Brain Sections. protocols.io, v1, 2025-02-20. DOI:10.17504/protocols.io.6qpvr9jwpvmk/v1. Protocol status: Working; License: Creative Commons Attribution License.
- Abcam. Tyrosine Hydroxylase antibody (neuronal marker) ab76442 product page, accessed 2026-10-19: Key facts species field lists Mouse; product details list rat samples; applications listed as IHC-P/IHC-FrFl.
- Sundström E, Strömberg I, Tsutsumi T, Olson L, Jonsson G. Studies on the effect of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on central catecholamine neurons in C57BL/6 mice. Comparison with three other strains of mice. Brain Res. 1987;405(1):26-38. DOI:10.1016/0006-8993(87)90986-3; PMID:2882814. 原文以TH免疫组化显示MPTP处理后C57BL/6小鼠黑质致密部多巴胺能胞体减少70%、纹状体DA纤维近乎完全丢失。
- Sauer H, Oertel WH. Progressive degeneration of nigrostriatal dopamine neurons following intrastriatal terminal lesions with 6-hydroxydopamine: a combined retrograde tracing and immunocytochemical study in the rat. Neuroscience. 1994;59(2):401-415. DOI:10.1016/0306-4522(94)90605-X; PMID:7516500. 原文在大鼠纹状体6-OHDA损伤后以TH免疫反应细胞计数显示黑质TH阳性细胞进行性减少。
- Oiwa Y, Sanchez-Pernaute R, Harvey-White J, Bankiewicz KS. Progressive and extensive dopaminergic degeneration induced by convection-enhanced delivery of 6-hydroxydopamine into the rat striatum: a novel rodent model of Parkinson disease. J Neurosurg. 2003;98(1):136-144. DOI:10.3171/jns.2003.98.1.0136; PMID:12546362. 原文在大鼠6-OHDA模型以形态学标准定义黑质细胞丢失>80%,并报告纹状体多巴胺下降>95%。
- Huang et al. Therapeutic Effects of Noninvasive Electrical Stimulation in Combination Transplantation of Human Adipose-Derived Stem Cells-Derived Dopaminergic Neuron on the Monkey Model of Parkinson's Disease. MedComm. 2026. DOI:10.1002/mco2.70595. Sections 4.1 and 4.13 document cynomolgus monkeys and Abcam ab76442 with anti-chicken fluorescent secondary in brain sections.