Liquid biopsy in cancer – Protein biomarkers – Serum TK1 (Thymidine Kinase 1)

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Protein biomarkers

Serum TK1 (Thymidine Kinase 1)

Published 29 May 2025

Thymine Kinase1 is an enzyme involved in the recovery of the nucleotide thymidine in the DNA salvage pathway. Levels of  serum TK1 are a general measure of cellular proliferation rate in the body and may therefore be raised in conditions other than cancer.

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