Mouse Plasminogen and Oxidized Phosphatidylcholine Adducts
Author Information
Author(s): Edelstein Celina, Pfaffinger Ditta, Reichert Ethan C., Stafforini Diana M., Scanu Angelo M.
Primary Institution: University of Chicago
Hypothesis
Does mouse plasminogen contain linked oxidized phosphatidylcholine adducts and are these metabolized by lipoprotein-associated phospholipase A2?
Conclusion
Mouse plasminogen carries chemically linked oxidized phosphatidylcholine adducts that are not cleaved by lipoprotein-associated phospholipase A2.
Supporting Evidence
- Mouse plasminogen contains oxidized phosphatidylcholine adducts that are covalently linked.
- Deletion of Lp-PLA2 does not affect the extent of plasminogen conjugation with oxidized phosphatidylcholine.
- Oxidized phosphatidylcholine adducts are not metabolized by Lp-PLA2 under basal conditions.
Takeaway
The study found that mouse plasminogen has special links to certain fats that are not broken down by a specific enzyme, which might be important for understanding heart health.
Methodology
The study involved isolating plasminogen from mouse plasma and assessing its content of oxidized phosphatidylcholine adducts using immunoblot analyses and ELISA.
Limitations
The study primarily focused on basal conditions and did not explore the effects under elevated oxidant or inflammatory stress.
Participant Demographics
The study used wild-type and Lp-PLA2-deficient mice.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website