ArticleVeterinary medicine and science2020
Detection of neurokinin-1 receptor by immunohistochemistry in canine mammary gland tumours.
Article in Veterinary medicine and science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 0 citations in OpenAlex.
- Detection of neurokinin-1 receptor by immunohistochemistry in canine mammary gland tumours.Veterinary medicine and science · 2020Article
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6 authors at 3 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Canine mammary gland tumour (cMGT) is the most common tumour in intact female dogs. Surgery is the only effective treatment for cMGT, and dogs with metastasis at the time of diagnosis or those diagnosed at an advanced stage have poorer prognosis. Thus, novel diagnostic biomarkers and therapeutic targets are needed. Neurokinin-1 receptor (NK-1 receptor) is involved in cancer progression and has been detected in various malignant tumours including breast cancer in humans. Furthermore, NK-1 receptor antagonists inhibit cancer progression. We evaluated NK-1 receptor expression in malignant and benign cMGT compared with that in normal mammary gland tissues and analysed the relationship between the expression of NK-1 receptor and histopathological type or malignancy grade. Specimens from 34 malignant MGT and 35 benign MGT cases were used for immunohistochemistry and scored according to intensity and percentage. Healthy margins from each tumour were used as internal controls. The scores for NK-1 receptor intensity, percentage of positive cells and overall immunohistochemistry were higher in malignant MGT than in benign MGT and normal tissue (p < .000). NK-1 receptor expression was not correlated with either malignancy grade or histopathological type. Expression of the NK-1 receptor in malignant MGT was higher than that in benign MGT and normal tissues. Thus, NK-1 receptor could be considered a novel therapeutic target for cMGT. Further studies using other quantitative tests such as western blotting or PCR and the evaluation of substance P in patient tumour tissue or serum are needed.
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