Journal
LIPIDS IN HEALTH AND DISEASE
Volume 19, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s12944-020-1199-9
Keywords
Soluble LDLR; Ectodomain shedding; ADAM-17; Inflammation
Funding
- Merieux Foundation
- Richard and Edith Strauss Foundation
- La Fondation Jean-Louis Levesque
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Soluble low-density lipoprotein receptor (sLDLR) is the circulating ectodomain of transmembrane LDLR. Its blood level strongly correlates with that of triglycerides (TG). This correlation has eluded satisfactory explanation. Hypertriglyceridemia and shedding of the ectodomain of many transmembrane receptors often accompany inflammatory states. The shedding mostly occurs through cleavage by a disintegrin-and-metalloproteinase-17 (ADAM-17), an enzyme activated by inflammation. It reduces the cellular uptake of TG-loaded lipoproteins, causing their accumulation in circulation; hence the correlation between plasma sLDLR and TG. Soluble LDLR could become a new surrogate marker of inflammation.
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