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- Title
Serum thymidine kinase activity in clinically healthy and diseased cats: a potential biomarker for lymphoma.
- Authors
Taylor, Samantha S; Dodkin, Steve; Papasouliotis, Kostas; Evans, Helen; Graham, Peter A; Belshaw, Zoe; Westberg, Sara; von Euler, Henrik P
- Abstract
The thymidine kinases are enzymes that convert deoxythymidine to deoxythymidine monophosphate and have a function in DNA synthesis. Rapidly proliferating cells will have higher levels of thymidine kinase. Serum thymidine kinase activity (sTK) is a useful tumour marker in humans and dogs, with utility as a prognostic indicator in lymphoma. In the current study serum samples were collected from 49 clinically healthy cats, 33 with lymphoma, 55 with inflammatory disease and 34 with non-haematopoietic neoplasia (NHPN). sTK was measured using a radioenzyme assay and a reference interval (1.96 × SD) was established from the clinically healthy cats (<5.5 U/l). Mean sTK activity for healthy cats was 2.2 U/l (range 0.8–8.4, ± SD 1.7). Mean sTK activity for cats with lymphoma was 17.5 U/l (range 1.0–100.0 SD ± 27.4). Mean sTK activity for cats with NHPN was 4.2 U/l (range 1.0–45.0, SD ± 8.6). Mean sTK activity for the inflammatory group was 3.4 U/l (range 1.0–19.6, SD 3.9). Cats with lymphoma had significantly higher sTK activity than healthy cats or cats with inflammatory disease (P <0.0001) and cats with NHPN (P <0.0002). sTK activity is a potentially useful biomarker for feline lymphoma and further study is required to assess its utility as a prognostic indicator.
- Subjects
THYMIDINE; BLOOD serum analysis; CAT diseases; BIOMARKERS; LYMPHOMAS in animals; DNA synthesis; VETERINARY diagnosis
- Publication
Journal of Feline Medicine & Surgery, 2013, Vol 15, Issue 2, p142
- ISSN
1098-612X
- Publication type
Article
- DOI
10.1177/1098612X12463928