Extracellular Vesicles (EVs) Derived from Mesenchymal Stem Cells (MSCs) as Adjuvants in the Treatment of Chronic Kidney Disease (CKD).

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Chronic kidney disease (CKD) is considered an important health issue worldwide. The renin-angiotensin-aldosterone system (RAAS) blockade through the administration of angiotensin II receptor blockers, such as Losartan (LOS), has been considered the best strategy for CKD treatment for decades. However, this approach promotes only partial detention of CKD progression and cannot reverse renal damage. The aim of the present study was to investigate whether the therapeutic administration of extracellular vesicles (EVs) derived from adipose stem cells (ASCs), associated to LOS treatment, would promote additional renoprotection in rats underwent the 5/6 renal ablation CKD model. ASC-derived EV were administered locally, in the renal subcapsular area, 15 days after CKD induction, when LOS therapy also began. Animals were followed for additional 15 days and our results demonstrated that subcapsular injection of ASC-derived EV associated with LOS significantly reduced glomerulosclerosis, renal interstitial infiltration by myofibroblasts, and macrophages in the 5/6 CKD model. Additionally, LOS + EV abrogated systemic hypertension, proteinuria, and albuminuria, and stimulated local gene overexpression of the endogenous anti-inflammatory Il-4 . Although more studies are still required to establish the best EV dose and administration route, these findings point to therapy with ASC-derived EV

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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