Monocyte Chemoattractant Protein Dynamics in Renal Disease
Summary
Monocyte Chemoattractant Protein-1 (MCP-1), also known as CCL2, is a pivotal chemokine that orchestrates the recruitment and activation of monocytes and macrophages in the injured kidney. Its expression is rapidly upregulated in response to diverse insults, including ischaemia–reperfusion, hypertensive renovascular damage, metabolic stress and autoimmune processes. Binding of MCP-1 to its cognate receptor CCR2 on circulating monocytes drives their homing to glomerular and tubulointerstitial compartments, where sustained inflammation promotes fibrosis, podocyte dysfunction and loss of the glomerular filtration barrier. Urinary and tissue levels of MCP-1 closely mirror disease severity in acute kidney injury, diabetic nephropathy, lupus nephritis and other chronic kidney diseases, rendering it both a biomarker and a potential therapeutic target. Dynamic interplay with additional chemokine systems, such as CX3CL1–CX3CR1, further modulates the balance between injury and repair. Emerging interventions aim to attenuate MCP-1 signalling directly or indirectly, illustrating the global significance of this pathway for delaying progression to end-stage renal disease and informing patient management worldwide.
Research from Nature Portfolio
Recent studies using a murine model of renovascular hypertension have shown that genetic deletion of Ccl2 markedly attenuates chronic renal damage. Animals lacking Ccl2 exhibit reduced mononuclear cell infiltration, preservation of kidney volume and mitigation of cortical hypoxia and atrophy following renal artery stenosis. These findings highlight MCP-1 as a central mediator of inflammation-driven fibrosis and suggest that targeting CCL2 production or CCR2 signalling could protect against hypertension-induced nephropathy.
Monocyte Chemoattractant Protein Dynamics in Renal Disease publication trend
The graph below shows the total number of articles in monocyte chemoattractant protein dynamics in renal disease across all publications each year (not limited to Nature Index journals).
Technical terms
Monocyte Chemoattractant Protein-1 (MCP-1/CCL2): A small chemokine that recruits monocytes and macrophages to sites of inflammation in tissues.
CCR2: The G-protein-coupled receptor predominantly expressed on monocytes that mediates cellular responses to MCP-1.
Podocyte: A specialised epithelial cell in the kidney glomerulus essential for maintaining the filtration barrier.
Albuminuria: The presence of albumin in the urine, reflecting increased permeability of the glomerular filtration barrier.
Chemokine: A family of small cytokines that guide the migration of immune cells during inflammatory and homeostatic processes.
References
- Role of MCP-1 as an inflammatory biomarker in nephropathy. Frontiers in Immunology (2024).
- Podocyte-Specific Deletion of MCP-1 Fails to Protect against Angiotensin II- or Adriamycin-Induced Glomerular Disease. International Journal of Molecular Sciences (2024).
- Ccl2 deficiency protects against chronic renal injury in murine renovascular hypertension. Scientific Reports (2018).
- Regulation and function of CX3CR1 and its ligand CX3CL1 in kidney disease. Cell and Tissue Research (2021).
- Empagliflozin Inhibits Basal and IL-1β-Mediated MCP-1/CCL2 and Endothelin-1 Expression in Human Proximal Tubular Cells. International Journal of Molecular Sciences (2020).
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