Increase in liver and kidney deoxycytidine kinase activity linked to neoplastic transformation

Ronald J. Harkrader, Robert C. Jackson, Donald A. Ross, George Weber

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Deoxycytidine kinase activity in normal rat liver cytosol was low (0.8 nmol/hr/mg protein); it increased 2–26-fold in 12 lines of chemically-induced, transplantable rat hepatomas of different growth rates. The increased kinase activity correlated positively with the hepatoma growth rate. The kinase activity did not change in the regenerating liver and the activity in the differentiating, neonatal rat liver was similar to values in adult liver. Deoxycytidine kinase activity in 2 chemically-induced, transplantable rat kidney tumors was increased to twice the value found in normal renal cortex. Among 15 normal rat tissues examined the highest kinase activities were observed in thymus, bone marrow and spleen. Of the normal and malignant rat tissues tested, only testis had detectable cytidine deaminase activity.

Original languageEnglish (US)
Pages (from-to)1633-1639
Number of pages7
JournalTopics in Catalysis
Issue number4
StatePublished - 1980
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Biophysics
  • Molecular Biology


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