BACE2-Induced Aberrant Lymphatic Network Aggravates the Local Inflammation in Arteriovenous Fistulas With Hyperphosphatemia.

As a widely used vascular access for hemodialysis patients, arteriovenous fistula (AVF) still faces high failure rates, in which local inflammatory response is an essential factor. In animal studies, chronic kidney disease (CKD) has been reported to aggravate local inflammation in AVFs, but the mechanisms are controversial. Here, spatial transcriptomics and single-cell RNA sequencing are used to explore the cellular changes during AVF remodeling in human and mouse.

PIEZO1-activated donor lymphatic remodeling integrates with autologous lymphangiogenesis to enhance vein graft patency in mice.

The great saphenous vein is the most commonly used conduit in coronary artery bypass grafting; however, the high vein graft failure rates remain an unresolved issue. Here, we compared different harvesting techniques for mouse vein grafts and found that the construction of a denser lymphatic network contributed to improved vein graft patency. Dual lymphatic tracing strategies using -Cre;R26-tdTomato/zsGreen mice uncovered a heterogeneous lymphatic network in mouse vein grafts.