Journal: Nature Communications
Article Title: Lactate bridges mesangial cells to the differentiation of follicular helper T cells in lupus nephritis
doi: 10.1038/s41467-025-67416-x
Figure Lengend Snippet: a Renal lactate levels in humanized chimeras ( n = 20 independent biological samples). b Glucose metabolism pathways in MCs from single-cell data (adjusted p value via “clusterProfiler” GSEA analysis). c-g MCs were stimulated with healthy or SLE plasma ( n = 4 ( c ), 3 ( f ), 12 ( g , left) or 6 ( g , right) independent biological samples). h–j Healthy CD4⁺ T cells were co-cultured with LN-associated MCs pre-treated with GSK2837808A (60 μM) ( n = 10 ( h ) or 8 ( i ) independent biological samples). k , l Healthy CD4⁺ T cells were co-cultured with LN-associated MCs transfected with shLDHA or shNC ( n = 10 independent biological samples). m Heatmap of differentially expressed glucose metabolism genes in CD4 + T cells co-cultured with MCs ( n = 4 independent biological samples). n Intracellular lactate content in CD4 + T cells co-cultured with MCs ( n = 6 independent biological samples). o Healthy CD4⁺ T cells were co-cultured with D-Glucose-¹³C 6 -labeled MCs for 2 days, and ¹³C-labeled lactate in CD4⁺ T cells was measured by mass spectrometry ( n = 5 independent biological samples). p–r Healthy CD4 + T cells were co-cultured with LN-associated MCs transfected with shMCT4 or shNC ( n = 6 independent biological samples). s–u Healthy CD4⁺ T cells were transduced with shMCT1 or shNC and co-cultured with LN-associated MCs ( n = 6 independent biological samples). v Mice were intraperitoneally injected with 4-Hydroxytamoxifen (100 mg/kg), immunized with immunogenic self-DNA (50 μg/mouse), and detected for the renal Tfh cells, circulating IgG anti-dsDNA and urine protein after 8 weeks ( n = 7 independent biological samples). w–y Anti-CD3/28 bead-activated healthy CD4 + T cells were stimulated with L-lactic acid (L-lac, 10 mM) or sodium L-lactate (LacNa, 40 mM) for 4 days ( n = 7 independent biological samples). The data are represented as the mean ± SEM. Normality and lognormality are assessed using the Shapiro-Wilk test. Two-tailed unpaired t test ( e , f , c , v ), two-tailed Mann-Whitney test ( a , g , o ), two-tailed paired t test ( h , i , m , o–q , s , t ), paired RM one-way ANOVA ( k , n , w–y ). Source data are provided as a Source Data file.
Article Snippet: IgG anti-dsDNA levels were measured with Human anti-dsDNA IgG ELISA Kit (CUSABIO, CSB-E04911h) and Mouse anti-dsDNA IgG ELISA Kit (Chondrex, 3031).
Techniques: Clinical Proteomics, Cell Culture, Transfection, Labeling, Mass Spectrometry, Transduction, Injection, Two Tailed Test, MANN-WHITNEY