## Detection of molecular features such as K-ras mutations has been used to evaluate potential tumour markers in a wide variety of clinical samples. Here we have applied a recently developed highly sensitive method for detection of K-ras codon 12 mutations to colorectal and pancreatic cancer diagno
A highly sensitive detection method for immunohistochemistry using biotinylated tyramine
β Scribed by King, George; Payne, Simon; Walker, Frederick; Murray, Graeme I.
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 353 KB
- Volume
- 183
- Category
- Article
- ISSN
- 0022-3417
No coin nor oath required. For personal study only.
β¦ Synopsis
A highly sensitive method for light microscopic immunohistochemistry is described. The increased sensitivity compared with current methodologies is based on the horseradish peroxidase-catalysed deposition of biotinylated tyramine at the sites of immunoreactivity, followed by the detection of the biotin with streptavidin biotin horseradish peroxidase complex. This method is of general applicability in immunohistochemistry and has several important advantages over currently used immunohistochemical detection procedures. The most significant advantage is that several antibodies which to date have been non-reactive, even in antigen-retrieval formalin-fixed, wax-embedded sections, now show strong and reproducible immunoreactivity using biotinylated tyramine amplification. In addition, many other antibodies can be used at significantly higher dilutions. 1997
π SIMILAR VOLUMES
We have developed a rapid and highly sensitive method for the detection of mutant K-ras codon 12 allele in the presence of 10 5 copies of the wild-type alleles. This sensitivity is achieved by selective amplification of mutant K-ras sequences, using a two-stage procedure with modified primers. In th
Scheme 1 . A schematic diagram of the electrical and optical variations of the Ti substrates due to the HF-HNO 3 treatment.
## Abstract The present study reports a proofβofβprinciple for a sensitive genotyping assay approach that can detect single nucleotide polymorphisms (SNPs) based on fluorescence anisotropy measurements through a coreβshell fluorescent nanoparticles assembly and ligase reaction. By incorporating the
## Background: Immunoreactivity for chromogranin a (cg a) is associated with the presence of neurosecretory granules in tumor cells, but immunohistochemical staining for cg a may be absent in small cell lung carcinoma (sclc), which has only a few secretory granules. localization of cg a mrna is a u
W e read with great interest the article by Sumiyoshi et al., 1 in which the authors report that the detection of chromogranin A (Cg A) mRNA using a new in situ hybridization method is far more sensitive than immunohistochemistry. In their series, 100% of 20 small cell carcinoma (SCLC) cases were po