Peggy and Harold Katz Family Drug Discovery Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
Cells. 2024 May 22;13(11):890. doi: 10.3390/cells13110890.
Podocyte health is vital for maintaining proper glomerular filtration in the kidney. Interdigitating foot processes from podocytes form slit diaphragms which regulate the filtration of molecules through size and charge selectivity. The abundance of lipid rafts, which are ordered membrane domains rich in cholesterol and sphingolipids, near the slit diaphragm highlights the importance of lipid metabolism in podocyte health. Emerging research shows the importance of sphingolipid metabolism to podocyte health through structural and signaling roles. Dysregulation in sphingolipid metabolism has been shown to cause podocyte injury and drive glomerular disease progression. In this review, we discuss the structure and metabolism of sphingolipids, as well as their role in proper podocyte function and how alterations in sphingolipid metabolism contributes to podocyte injury and drives glomerular disease progression.
足细胞的健康对于维持肾脏中肾小球的正常过滤功能至关重要。足细胞的指状突起形成裂孔隔膜,调节分子通过大小和电荷选择性的过滤。在裂孔隔膜附近,富含胆固醇和鞘脂的有序膜域脂质筏的丰富度突出了脂质代谢在足细胞健康中的重要性。新兴的研究表明,鞘脂代谢通过结构和信号作用对足细胞健康的重要性。鞘脂代谢失调已被证明会导致足细胞损伤,并推动肾小球疾病的进展。在这篇综述中,我们讨论了鞘脂的结构和代谢,以及它们在正常足细胞功能中的作用,以及鞘脂代谢的改变如何导致足细胞损伤并推动肾小球疾病的进展。
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