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R-268712 is a specific activin receptor-like kinase 5 (ALK5) inhibitor(IC50 of 2.5 nM). It is also an orally active transforming growth factor-β type I receptor inhibitor.

KS370G (Caffeic Acid Phenethyl Amide) inhibits UUO-induced renal fibrosis marker expression. KS370G is an orally active hypoglycemic and cardioprotective agent that reduces collagen deposition in obstructed kidneys and significantly decreases renal expression of inflammatory chemokines adhesion molecules and monocyte markers and improves left ventricular hypertrophy and function in the heart of pressure-overloaded mice.KS370G can be used to study renal obstructive nephropathy.

Trandolapril is an orally administered angiotensin converting enzyme (ACE) inhibitor that is hydrolysed to the active diacid trandolaprilat.

BT424, a specific HCK inhibitor, modulates macrophage activation and autophagy in vitro, and mitigates inflammation and renal fibrosis in the UUO model [1].

Klotho-derived peptide 1 (KP1) (56-87), a peptide originating from the human Klotho protein, disrupts TGF-β signaling by binding to TGF-β receptor types 1 and 2 (TGFBR1 and TGFBR2; Kds = 1.41 and 14.6 µM, respectively). Preincubation with KP1 at a concentration of 10 µg/ml hinders the TGF-β-induced escalation of fibronectin and α-smooth muscle actin (α-SMA) levels in NRK-49F rat fibroblasts. Furthermore, in vivo studies reveal that KP1, administered at 1 mg/kg per day, preferentially accumulates in damaged kidneys, leading to significant reductions in serum creatinine and blood urea nitrogen levels, indicators of improved kidney function. Additionally, it decreases kidney fibrosis in mouse models of unilateral ureteral obstruction (UUO) and unilateral ischemia-reperfusion injury-induced renal fibrosis.