Clearance of LDH-5 from the circulation of inbred mice correlates with binding to macrophages
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Updated: Aug 19, 2026
Depletion and Reconstitution of Macrophages in Mice
Published on: August 1, 2012
1Laboratory of Veterinary Pathology, Yamaguchi University, Japan.
Abstract:
Flow cytometry showed that the enzyme lactate dehydrogenase (LDH-5) binds to peritoneal macrophages. The degree of binding appears to be genetically controlled and varies depending on the inbred strain of mouse. The rate at which LDH-5 is cleared from the circulation correlates with the degree of binding to macrophages. These findings suggest that the binding of LDH-5 to macrophages may serve as an in-vitro index of enzyme clearance.
Insights
Lactate dehydrogenase (LDH-5) binds to mouse macrophages in a genetically controlled manner. This binding rate correlates with enzyme clearance, suggesting it can be an in-vitro index for enzyme clearance.
Area of Science:
- Immunology
- Biochemistry
- Genetics
Background:
- Lactate dehydrogenase (LDH-5) is an enzyme with known functions in cellular metabolism.
- The interaction between enzymes and immune cells like macrophages is an area of ongoing research.
- Understanding enzyme-macrophage interactions can provide insights into physiological processes and disease states.
Purpose of the Study:
- To investigate the binding of lactate dehydrogenase-5 (LDH-5) to peritoneal macrophages.
- To determine if the extent of LDH-5 binding is influenced by genetic factors in mice.
- To explore the relationship between LDH-5 binding to macrophages and its clearance rate from circulation.
Main Methods:
- Utilizing flow cytometry to quantify the binding of LDH-5 to peritoneal macrophages.
- Employing different inbred strains of mice to assess genetic control over binding.
- Measuring the rate of LDH-5 clearance from the bloodstream.
Main Results:
- Flow cytometry confirmed that LDH-5 binds to peritoneal macrophages.
- The degree of LDH-5 binding exhibited significant variation among different inbred mouse strains, indicating genetic control.
- A positive correlation was observed between the rate of LDH-5 clearance from circulation and the extent of its binding to macrophages.
Conclusions:
- The binding of LDH-5 to macrophages is a genetically influenced phenomenon.
- The extent of LDH-5 binding to macrophages correlates with its systemic clearance rate.
- Macrophage binding of LDH-5 may serve as a valuable in-vitro index for assessing enzyme clearance rates.
