Journal: iScience

Article Title: ATF6 ameliorates renal warm ischemia-reperfusion injury through FHL2-mediated NF-κB signaling pathway

doi: 10.1016/j.isci.2026.115173

Figure Lengend Snippet: Renal warm I/R injury in mice increases the expression of ATF6 (A) RT-qPCR analysis of ATF6 expression in mouse kidney tissues. (B–C) Representative Western blot images and quantification of ATF6 and activated ATF6 (cATF6) expression in mouse kidney tissues subjected to Sham and ischemia 1h/reperfusion 6h (I/R). (D–E) Representative IHC images and quantification of ATF6 expression in kidney tissues (Scale bars, 100 μm and 50 μm). (F–G) ATF6 expression in cultured HK-2 in response to normoxia and hypoxia/reoxygenation (H/R) treatment was determined by RT-qPCR and Western blot. (H) Quantitative statistical analysis of ATF6 protein. Data represent mean ± SDs, and statistical analysis was performed using t test. (∗ p < 0.05). T-vs-C means IR-vs-Sham.

Article Snippet: ATF6 , Santa Cruz , Cat# sc-166659; RRID: N/A.

Techniques: Expressing, Quantitative RT-PCR, Western Blot, Cell Culture

Journal: iScience

Article Title: ATF6 ameliorates renal warm ischemia-reperfusion injury through FHL2-mediated NF-κB signaling pathway

doi: 10.1016/j.isci.2026.115173

Figure Lengend Snippet: ATF6 plays a protective role in renal ischemia-reperfusion injury (A–B) The levels of serum Cr and BUN in mice. (C–D) The levels of serum IL-6 and TNF-α in mice. (E–F) The representative images and kidney injury assessment score of HE staining of the kidney. Ceapin-A7 (10 μM) is an ATF6 inhibitor, and AA147 (10 μM) is an ATF6 agonist. Data represent mean ± SDs, and statistical analysis was performed using one-way ANOVA. (∗ p < 0.05).

Article Snippet: ATF6 , Santa Cruz , Cat# sc-166659; RRID: N/A.

Techniques: Staining

Journal: iScience

Article Title: ATF6 ameliorates renal warm ischemia-reperfusion injury through FHL2-mediated NF-κB signaling pathway

doi: 10.1016/j.isci.2026.115173

Figure Lengend Snippet: ATF6 plays a protective role in renal ischemia-reperfusion injury (A–B) The levels of serum Cr and BUN in mice. (C–D) The levels of serum IL-6 and TNF-α in mice. (E–F) The representative images and kidney injury assessment score of HE staining of the kidney. (G–H) RT-qPCR analysis of TNF-α and IL-6 expression in cultured HK-2 in response to H/R treatment. (I–J) RT-qPCR analysis of IL-6 and TNF-α expression in cultured HK-2 in response to H/R using siATF6. Data represent mean ± SDs, and statistical analysis was performed using one-way ANOVA. (∗ p < 0.05).

Article Snippet: ATF6 , Santa Cruz , Cat# sc-166659; RRID: N/A.

Techniques: Staining, Quantitative RT-PCR, Expressing, Cell Culture

Journal: iScience

Article Title: ATF6 ameliorates renal warm ischemia-reperfusion injury through FHL2-mediated NF-κB signaling pathway

doi: 10.1016/j.isci.2026.115173

Figure Lengend Snippet: ATF6 inhibits the activation of the NF-κB pathway (A) Western blot detection of the expression of NF-κB pathway-related proteins in renal tissue; GAPDH was used as a loading control. (B) Quantitative analysis of protein expression, data represent mean ± SDs, and statistical analysis was performed using t test. (∗ p < 0.05). (C) After hypoxia/reoxygenation in the WT group and knockdown group, the expression of NF-κB pathway-related proteins was detected by Western blot, GAPDH was used as a loading control. (D) Quantitative analysis of protein expression. (E) After hypoxia/reoxygenation in the WT group and the ATF6 overexpression group, the expression of NF-κB pathway-related proteins was detected by Western blot, GAPDH was used as a loading control. (F) Quantitative analysis of protein expression. Data represent mean ± SDs, and statistical analysis was performed using one-way ANOVA. (∗ p < 0.05).

Article Snippet: ATF6 , Santa Cruz , Cat# sc-166659; RRID: N/A.

Techniques: Activation Assay, Western Blot, Expressing, Control, Knockdown, Over Expression

Journal: iScience

Article Title: ATF6 ameliorates renal warm ischemia-reperfusion injury through FHL2-mediated NF-κB signaling pathway

doi: 10.1016/j.isci.2026.115173

Figure Lengend Snippet: The expression of FHL2 is transcriptionally regulated by ATF6 (A) Expression of FHL2 in RNA-seq after using siATF6. (B) RT-qPCR analysis of FHL2 expression in mouse kidney tissues. (C) Representative Western blot images and quantification of FHL2 expression in mouse kidney tissues (GAPDH as the loading control). (D–E) Representative IHC images and quantification of FHL2 expression in kidney tissues (Scale bars, 100 μm). (F–G) FHL2 expression in cultured HK-2 in response to normoxia and hypoxia/reoxygenation (H/R) treatment was determined by Western blot. GAPDH was used as a loading control. (H–I) The expression of FHL2 and ATF6 in HK-2 cells after ATF6 knockdown was examined by Western blot. GAPDH was used as a loading control; (J-K) The expression of FHL2 and ATF6 in HK-2 cell lines after ATF6 overexpression was examined by Western blot. GAPDH was used as a loading control. (L) The input of ATF6 and IgG binding the FHL2 promoters in HK-2 after hypoxia/physoxia treatment by CHIP-qPCR. (M) Luciferase activity of transfected HEK-293T targeting FHL2 and its mutant after H/R using the dual-luciferase reporter assay. (N) The putative ATF6-binding sites in the FHL2 promoter and the nucleotide sequences representing the predicted binding sequences with the red capital letters indicating core binding elements; Data represent mean ± SDs, and statistical analysis was performed using one-way ANOVA. (∗ p < 0.05).

Article Snippet: ATF6 , Santa Cruz , Cat# sc-166659; RRID: N/A.

Techniques: Expressing, RNA Sequencing, Quantitative RT-PCR, Western Blot, Control, Cell Culture, Knockdown, Over Expression, Binding Assay, ChIP-qPCR, Luciferase, Activity Assay, Transfection, Mutagenesis, Reporter Assay

Journal: Nucleic Acids Research

Article Title: Transient SUMOylation inhibition in human pre-adipocytes stably imprints a transcriptional beiging fate

doi: 10.1093/nar/gkag232

Figure Lengend Snippet: Effect of transient SUMOylation inhibition in pre-adipocytes on cAMP-PKA-p38 signaling and adaptive thermogenesis in mature adipocytes. ( A ) Heatmap showing the stable upregulation of most genes involved in adaptive thermogenesis and cAMP-PKA-p38 signaling 22 days after adipogenic induction. Z -scores were calculated and plotted in GraphPad Prism. Treatments of pre-adipocytes were performed as shown in Fig. . ( B ) Western blot analysis of PKA substrates phosphorylation, assessed using a pan-PKA-target antibody, 22 days after adipogenic induction. TBP was used as a loading control. The asterisk (*) indicates substrates significantly affected by TAK-981 and/or rosiglitazone treatment. ( C ) Quantification of PKA substrate signals from panel (B). The signal for PKA substrates and TBP was quantified using Fiji software, with PKA substrate signals normalized to TBP. Error bars represent the standard deviation of four independent experiments. Student’s t -test was used to calculate P -values. ( D ) Western blot analysis of p-CREB, p-ATF1, p38, p-p38, and p-ATF2, 22 days after adipogenic induction. TBP was used as a loading control. ( E ) Quantification of p-CREB/ATF-1 signals from panel (D). Signals were normalized to TBP. Error bars represent the standard deviation of three independent experiments. Student’s t -test was used to calculate P -values. ( F ) Western blot analysis of p-CREB in the absence or presence of the PKA inhibitor RP-8-CPT-cAMPS. TBP was used as a loading control. Quantification of p-CREB, normalized to TBP, is showed in the lower panel. Error bars represent the standard deviation of two independent experiments. Quantification of p-p38 ( G ) and p-ATF2 ( H ) from experiment in panel (D). Signals were normalized to TBP for p-ATF2 and to p38 for p-p38. Error bars represent the standard deviation of three independent experiments. Student’s t -test was used to calculate P -values.

Article Snippet: The following antibodies were used: UCP1, abcam, ab209483; PKA phospho-substrates, Cell Signaling, 9624; p-CREB/p-ATF1, Cell Signaling, 9198; p38 MAPK, Cell Signaling, 9212; p-p38 MAPK, Cell Signaling, 9211; p-ATF2, Cell Signaling, 24329; SUMO2/3, abcam, ab81371; PPARG, Cell signaling, 2443; and TBP, Protein Tech, 22006-1-AP or abcam, 282715; γ-tubulin, Sigma, T5326: CEBPB, Santa Cruz, sc-7962 quantifications were performed using FiJi [ ].

Techniques: Inhibition, Western Blot, Phospho-proteomics, Control, Software, Standard Deviation