ArticleFrontiers in pharmacology2025
Dual blockade of DPP-4 and CXCL12/CXCR4 axes synergistically protects podocytes in lupus nephritis.
Article in Frontiers in pharmacology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Integrated Transcriptomic and Machine Learning Analyses Identify KCNN3 and TLR10 as Candidate Cell-Type-Associated Molecules in Idiopathic Membranous Nephropathy.International journal of general medicine · 2026Article
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11 authors.
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Abstract
Background: Lupus nephritis (LN), a severe complication of systemic lupus erythematosus (SLE), is characterized by podocyte injury that contributes to disease progression. Dipeptidyl peptidase-4 (DPP-4) inhibitors, though developed for diabetes, have shown renoprotective potential. However, DPP-4 inhibition may elevate CXCL12/CXCR4 signaling, a pathway implicated in LN pathogenesis. This study aimed to determine whether dual DPP-4 and CXCL12/CXCR4 blockade confers enhanced renal protection in LN. Methods: MRL/lpr lupus-prone mice were treated with the DPP-4 inhibitor linagliptin, either alone or in combination with the CXCL12/CXCR4 axis antagonist AMD3100. We evaluated renal function, histopathology, podocyte structure, and markers of oxidative stress, fibrosis, and inflammation. Results: DPP4-deficient podocytes exhibited elevated CXCL12/CXCR4 expression and modest nephrin upregulation. Co-treatment with AMD3100 further increased nephrin expression compared to linagliptin alone. Conclusion: Combined DPP-4 and CXCL12/CXCR4 axis inhibition synergistically enhanced podocyte protection and attenuated renal inflammation, fibrosis, and oxidative stress in lupus nephritis. These findings support dual blockade as a promising therapeutic strategy for LN.
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