Related Experiment Videos
Rat peripheral mononuclear cell thymidine kinase activity increases during liver regenerative processes after partial
M Morimoto1, K Numata, K Tanaka
1Third Department of Internal Medicine, Yokohama City University School of Medicine, Japan.
Journal of Gastroenterology and Hepatology
|November 1, 1995
Summary
Peripheral blood mononuclear cell deoxythymidine kinase (TK) activity mirrors liver regeneration after partial hepatectomy in rats. This finding suggests PMNC-TK may serve as an early biomarker for liver regenerative processes.
Area of Science:
- Biochemistry
- Cell Biology
- Regenerative Medicine
Background:
- Deoxythymidine kinase (TK) liver activity is a known marker for liver regeneration.
- Investigating TK activity in other tissues and blood components is crucial for understanding regenerative processes.
Purpose of the Study:
- To evaluate TK activity in various organs, plasma, and peripheral blood mononuclear cells (PMNCs) following partial hepatectomy in rats.
- To determine if PMNC-TK can serve as an early indicator of liver regeneration.
Main Methods:
- Partial hepatectomy was performed on rats.
- TK activity was measured in liver cytosol, various organs, plasma, and PMNCs at different time points post-surgery.
- PMNCs were fractionated into T and B cells for analysis.
- Plasma levels of AST and ALT were also monitored.
Main Results:
- PMNC-TK and liver cytosolic TK activity increased in parallel after surgery, peaking at 48 hours.
- TK activity in most other organs, including lymph nodes, small intestine, heart, lung, kidney, and thymus, did not significantly change.
- Plasma TK levels peaked early (12-24 hours) and then declined, correlating with AST and ALT levels.
Conclusions:
- PMNC-TK activity closely correlates with liver cytosolic TK activity during early liver regeneration.
- PMNC-TK shows potential as a non-invasive, early-stage biomarker for liver regenerative processes.