Journal: Journal of Nanobiotechnology
Article Title: An oral nanocombinatorial agent exhibits pleiotropic improvement in diabetic nephropathy via modulation of the SCAP/SREBPs pathway
doi: 10.1186/s12951-026-04301-9
Figure Lengend Snippet: SCAP/SREBPs upregulation induces lipid deposition and inflammation in DN. ( A ) Multispecies conjoint analysis of conserved biological process in DN. ( B ) Schematic of SCAP/SREBPs as integrators of lipid metabolic and inflammatory signaling pathways. ( C , D ) Representative immunohistochemical staining for SREBP1, SREBP2, and SCAP in renal glomeruli ( C ) and tubules ( D ) of DN patients ( n = 6). Scale bars = 20–50 μm. ( E ) Representative immunohistochemical staining of CD68 in kidney of DN patients ( n = 6). Scale bar = 50 μm. ( F ) Heat map of Scap, Srebf1, Srebf2 and their downstream target gene expression in DN mice ( n = 6) from GSE200322 . ( G ) Correlation analysis between Scap, Srebf1, Srebf2 and renal inflammation, fibrosis, glomerular/tubular injury markers in DN mice ( n = 6) from GSE200322 . ( H ) Scheme of the STZ/HFD-induced T2DN mouse model. ( I ) Representative Oil Red O staining of renal glomeruli and tubules in DN mice ( n = 6). Scale bar = 10–50 μm. ( J , K ) Representative immunohistochemical staining for SREBP1, SREBP2, and SCAP in renal glomeruli ( J ) and tubules ( K ) of DN mice ( n = 6). Scale bar = 10–50 μm. ( L ) Western blot analysis of SCAP, p-SREBP1, n-SREBP1, p-SREBP2, and n-SREBP2 in DN mouse renal cortex ( n = 6). ( M ) Representative immunohistochemical staining of F4/80 in kidneys of DN mice ( n = 6). Scale bar = 50 μm. ( N ) Relative mRNA levels of inflammatory cytokines (IL-1β, IL-6, TNF-α) in the DN mouse renal cortex ( n = 6). ( O ) Representative immunofluorescence staining of SCAP with cell markers (synaptopodin for podocytes, PDGFRβ for mesangial cells, LTL for proximal tubules) in DN mice. Scale bar = 10–20 μm. Data are represented as mean ± SEM. * P < 0.05, ** P < 0.01, *** P < 0.001
Article Snippet: Anti-PDGFRβ antibody (Catalog No. 3169) was purchased from CST (MA, USA), anti-LTL antibody (Catalog No. FL-1321-2) was purchased from vector laboratories (San Francisco, USA), anti-synaptopodin (Catalog No. sc-515842) antibody was purchased from Santa Cruz (Texas, USA), anti-Zo-1 antibody (Catalog No. TA5145) was purchased from Abmart (Shanghai, China).
Techniques: Protein-Protein interactions, Immunohistochemical staining, Staining, Targeted Gene Expression, Western Blot, Immunofluorescence