Lymphatic vessel endothelial hyaluronan receptor 1 (LYVE1), also known as extracellular link domain containing 1 (XLKD1) is a Link domain-containing hyaladherin, a protein capable of binding to hyaluronic acid (HA), homologous to CD44, the main HA receptor. In humans it is encoded by the LYVE1 gene. LYVE1 is a type I integral membrane glycoprotein. It acts as a receptor and binds to both soluble and immobilized hyaluronan. This protein may function in lymphatic hyaluronan transport and have a role in tumor metastasis. LYVE-1 is a cell surface receptor on lymphatic endothelial cells that can be used as a lymphatic endothelial cell marker, allowing for the isolation of these cells for experimental purposes. The physiological role for this receptor is still the subject of debate, but evolutionary conservation suggests an important role. Expression of LYVE1 not restricted to lymph vessels but is also observed in normal liver blood sinusoids, and embryonic blood vessels.
Background References
1. Yu X et al. Septal LYVE1(+) macrophages control adipocyte stem cell adipogenic potential. Science. 2025 Aug
2. Siret C et al. Deciphering the heterogeneity of the Lyve1(+) perivascular macrophages in the mouse brain. Nat Commun. 2022 Nov
Tissue Specificity
Mainly expressed in endothelial cells lining lymphatic vessels.
Western blot analysis of LYVE1 on different lysates with Rabbit anti-LYVE1 antibody (ET1702-29) at 1/2,000 dilution.
Lane 1: MCF-7 cell lysate Lane 2: SW480 cell lysate Lane 3: A431 cell lysate Lane 4: HUVEC cell lysate
Lysates/proteins at 10 µg/Lane.
Predicted band size: 35 kDa Observed band size: 35 kDa
Exposure time: 2 minutes; 10% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (ET1702-29) at 1/2,000 dilution was used in 5% NFDM/TBST at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
☑ Knockdown (KD)
Western blot analysis of LYVE1 on different lysates with Rabbit anti-LYVE1 antibody (ET1702-29) at 1/2,000 dilution.
Lane 1: A549-si NT cell lysate Lane 2: A549-si LYVE1 cell lysate
Lysates/proteins at 10 µg/Lane.
Predicted band size: 35 kDa Observed band size: 35 kDa
Exposure time: 3 minutes; 4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM in TBST for 1 hour at room temperature. The primary antibody (ET1702-29, 1/2,000) and Loading control antibody (Rabbit anti-GAPDH, ET1601-4, 1/10,000) were used in 5% BSA at room temperature for 2 hours. Goat Anti-rabbit IgG-HRP Secondary Antibody (HA1001) at 1:100,000 dilution was used for 1 hour at room temperature.
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