Journal: Theranostics
Article Title: HSF1 promotes CD69 + Treg differentiation to inhibit colitis progression
doi: 10.7150/thno.78078
Figure Lengend Snippet: HSF1 is important for CD69 transcription in CD4 + T cells. ( A ) Schematic of the nucleotide sequence of CD69 promoter, indicating the locations of the putative HSE sites. The potential HSF1 binding sites are shown in boxes. ( B ) HEK293 cells were infected for 48 h with luciferase reporter plasmids as shown on the left as well as a construct that encodes HSF1 or the empty vector, and then, cells were harvested to detect luciferase activity. ( C ) ChIP analysis of HSF1 binding to the CD69 promoter in CD4 + T cells with or without anti-CD3/CD28 mAb stimulation. ( D ) Overall 1×10 6 /mL CD4 + T cells were added to 8 μg polybrene and transfected with control lentivirus or lentivirus-HSF1 at an MOI of 100 for 48 h. CD69 protein levels were determined using flow cytometry. ( E ) CD4 + T cells isolated from HSF1 +/+ and HSF1 +/- mice were stimulated with different doses of anti-CD3/CD28 antibodies, and the mRNA levels of CD69 were detected by qRT-PCR. ( F ) 1 × 10 6 /mL CD4 + T cells were stimulated with or without anti-CD3/CD28 antibodies and treated with HSF1 siRNA for the indicated time. The relative levels of CD69 expression in different groups of CD4 + T cells were determined by qRT-PCR. ( G ) CD4 + T cells isolated from HSF1 +/+ and HSF1 +/- mice were stimulated with or without anti-CD3/CD28 antibodies following the treatment with KRIBB11 for 24 h, and then the expression of CD69 + CD4 + T cell was analyzed by FACS. Representative images of the data expressed as mean ± SD of three independent experiments (n = 7 per group). ns, not significant. * p <0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001, as analyzed by ANOVA or Student's t -test.
Article Snippet: Antibodies including APC-anti-CD4 (Invitrogen, Clone: RM4-5, Catalog: 17-0043-82) or PE-Cy7-anti-CD4 (Invitrogen, Clone: GK1.5, Catalog: 25-0041-82) and PE-anti-CD69 (Invitrogen, Clone: H1.2F3, Catalog: 12-0691-82) or PE-Cy5-anti-CD69 (Invitrogen, Clone: H1.2F3, Catalog: 15-0691-82), PE-anti-Foxp3 (Invitrogen, Clone: FJK-16s, Catalog: 12-5773-82), APC-anti-CD25 (Invitrogen, Clone: PC61.5, Catalog: 17-0251-82), PE-anti-CTLA-4 (Invitrogen, Clone: UC10-4B9, Catalog: 12-1522-82), PE-anti-ICOS (Invitrogen, Clone: C398.41, Catalog: 12-9949-81) or isotype controls(Invitrogen, USA) were used to analyze the phenotype of various Tregs.
Techniques: Sequencing, Binding Assay, Infection, Luciferase, Construct, Plasmid Preparation, Activity Assay, Transfection, Flow Cytometry, Isolation, Quantitative RT-PCR, Expressing