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Fig. S1. the Non-Coding Transcriptome Is a Key Component of the TGF-Β Response of Lung Fibroblasts

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Fig. S1. the Non-Coding Transcriptome Is a Key Component of the TGF-Β Response of Lung Fibroblasts Fig. S1. The non-coding transcriptome is a key component of the TGF-β response of lung fibroblasts. Circos plot showing the genome-wide transcriptional profiling of TGF-β-regulated mRNAs and ncRNAs in lung fibroblasts (Datasets 1 and 2). (b,d,f) Log2 FoldChange of differentially expressed lncRNAs (d), protein-coding genes near to lincRNA candidate loci (<500kb) (b), and miRNAs (f). Upregulated and downregulated genes are shown in red and green respectively. (a,c,e) Associated protein-coding gene names (a), lncRNA names (c) colored according to their biotype: lincRNAs (orange), primiRNAs (green), antisense RNAs (turquoise), pseudogenes (blue), and mature miRNA names (e). (g,h) Inner links representing local lncRNAs-protein-coding genes (black) and lncRNAs-miRNAs (blue) co-regulation associations. Lung Fibroblasts TGF-β, RNA sequencing Chr1 n o A B i s 1000 s e r ** p 800 x Control e Control TGF-β S TGF-β O 600 3 M N 400 D d e z 200 i l a m r 0 o N Control TGF-β Lung fibroblasts, DNM3OS Gapmer TGF-β C DNM3OS E ACTA2 F 3 ## 25 ## 1 0 n * * n n * o ** 8 i 20 o o i s i s s s s a e 2 r e v 6 r 15 p n p I x x e e e v e 10 i 4 e t v i v a t i 1 l t * a e l a ** l e 5 R 2 e R R ** * 0 0 0 Control TGF- C o n tro l T G F - Control TGF- Gp Control Gp control ## Gp DNM3OS 3 COL1A1 Gp DNM3OS n ** o i s s 2 e D r p x e TGF-β - TGF-β + e v i 1 t Gp DNM3OS Control DNM3OS Control a l * e * R 0 Control TGF- 4 FN1 ## n * o i s 3 s e r p x 2 e e v i t a l 1 e R 0 Control TGF- Gp DNM3OS Gp control Fig. S2. Identification of DNM3OS as a key effector of TGF-β signaling. (A) Screenshot from Integrative Genomic Viewer displaying representative RNA-Seq data of the DNM3OS locus (Dataset 1). An increase of total reads associated with the unprocessed transcript (variant 1, long non-coding RNA, 7,957 bp lncRNA, NR_038397.2) and the spliced transcript (variant 2, 4,051 bp linear ncRNA, lncRNA, NR_103486.1) following TGF-β treatment is shown. (B) Bar charts showing the normalized expression of DNM3OS in control or TGF-β stimulated cells. Data from high- throughput sequencing are expressed as normalized counts ± SEM for three independent experiments. ** P<0.01. (C-F) Functional impact of DNM3OS silencing on TGF-β signaling in pulmonary fibroblasts. MRC5 cells were transfected with either a control or a DNM3OS-specific gapmer (Gp) and then incubated with or without TGF-β (C) Bar charts showing the relative expression of DNM3OS in the indicated conditions. Data are expressed as mean ± SEM. (n=3) * P<0.05 ** P<0.01 ## P<0.01. (D) Heatmap comparing the normalized log2 expression of significantly modulated transcripts obtained by microarray analysis (n=2 per group, Dataset 3). (E) Bar charts showing the relative expression of ACTA2 (α-SMA) COL1A1 and FN1 compared to PPIA in the indicated conditions. Data are expressed as mean ± SEM. (n=3) * P<0.05 ** P<0.01 ## P<0.01. (F) Bar charts showing the relative quantification of invasion in the indicated conditions. Data are expressed as mean ± SEM (n=3). ** P<0.01. Lung Fibroblasts TGF-β, small RNA sequencing miRNA GOF / LOF FN1 A D 2.5 n o i s 2.0 ** Control s ** RNA-Seq e TGF-β r p 1.5 Control x e Small RNA-Seq TGF-β e 1.0 v i t a l 0.5 e miR-199a-3p R miR-199a-5p 0.0 l p p p o 3 3 5 r - - Pre-miR - t 4 a a n 1 9 9 o 2 9 9 - C 1 1 - - R i R R i i Control m m RNA-Seq m TGF-β Small RNA-Seq Control TGF-β FN1 4 miR-214-3p n o i s ** s 3 e ** r p x 2 e e v i Lung Fibroblasts TGF-β, qPCR t 1 a l e B C R 0 2.5 miR-199a-3p 2 .5 miR-199a-3p TGF-β - - - + - + * * l + + p p p o 3 3 5 r n n - - - t 4 a a o o 2 .0 n * i i 2.0 1 9 LNA 9 o s s 2 9 9 - C s s 1 * * 1 - - R e e i r r R * 1 .5 R i 1.5 i p p m x m m x e e e e 1.0 1 .0 v v i i t t a a l l E 6 e e 0.5 0 .5 R n R ** o i s ** 0.0 0 .0 a 4 TGF-β (ng/mL) 0 5 10 20 TGF-β (h) 0 6 1 2 2 4 v n i e v i 3.0 miR-199a-5p 2 .5 miR-199a-5p t 2 a l * e n n * 2.5 R o o 2 .0 i i * s s 0 s s l p p p 2.0 e e o r 3 r 5 * 3 r - - 1 .5 - t p p Pre-miR 4 a a n x x 1 9 * 9 1.5 * o e e 2 9 9 - C 1 1 e e - 1 .0 - R v i v i R R i i i 1.0 t t m a a 30 m m l l ** e e 0 .5 n 0.5 R R o i s 0.0 0 .0 a 20 v TGF-β (ng/mL) 0 5 10 20 TGF-β (h) 0 6 1 2 2 4 n ** I e v i 2 .5 3 .0 t 10 miR-214-3p miR-214-3p * a l * * e n n * * 2 .5 R o 2 .0 o i i s s 0 s s 2 .0 e e * r 1 .5 r TGF-β - + - + - + - + * l p p p p p o x x 3 3 5 r - - 1 .5 - t e e * 4 a a LNA n e 1 e 9 9 1 .0 o 2 v 9 9 v i - i C 1 1 .0 1 t t - - R a a i l l R R i i e e 0 .5 m m 0 .5 m R R 0 .0 0 .0 TGF-β (ng/mL) 0 5 1 0 2 0 TGF-β (h) 0 6 1 2 2 4 Fig. S3. DNM3OS is processed into three profibrotic miRNAs in lung fibroblasts. (A) Screenshot from IGV browser displaying representative small RNA-Seq data of the DNM3OS locus in TGF-β-exposed human pulmonary fibroblasts or control conditions (Dataset 2). Zoomed in view of the regions corresponding to miR-199a2 and miR-214, which shows, in response to TGF-β, an increase number of reads associated with the following mature miRNAs: miR-199a-3, miR-199a-5p and miR-214-3p. As the expression of miR-214-5p represents only 5% of the total reads of miR-214, this miRNA was not considered relevant. (B,C) Bar charts showing dose-(B) and time-dependent (C) expression of DNM3OS-associated miRNAs in MRC5 cells exposed or not to TGF-β. RNU44 was used as reference. Data are expressed as mean ± SEM (n=3). * P<0.05 ** P<0.01. (D) Bar charts showing the relative expression of FN1 compared to PPIA in the indicated condition. Data are expressed as mean ± SEM. (n=3) ** P<0.01. (E) Bar charts showing the relative quantification of invasion in the indicated conditions. Data are expressed as mean ± SEM (n=3). ** P<0.01. A B miR-199a-3p miR-199a-5p miR-214-3p miR-199a-3p NES=2.04 miR-199a-5p NES=4.61 miR-214-3p NES=4.58 C D miR-199a-3p miR-199a-5p miR-214-3p log10 P. Value P. log10 Value P. log10 Value P. log10 - - - Fold Enrichment Fold Enrichment Fold Enrichment E Target identification GSK3B Mimics GOF miRonTop miR-214-3p PTGS2 FGF7 Gapmer LOF Fibrotic TargetScan miR-199-3p pathways & TGF-β Mungunsukh and Day, stimulation HGF (IPA) 2013a Lino Cardenas et al., miR-199a-5p CAV1 2013 Fig. S4. Identification of the cellular pathways and gene targets associated with the miR-199a~214 cluster in human lung fibroblasts. (A) Heatmap showing the genes differentially expressed after individual miRNA mimics overexpression in lung fibroblasts (dataset 4). (B) GSEA plots of an experimental TGF-β-signature (Dataset 5) showing a significant enrichment of miR-199a-5p and miR-214-3p down-regulated transcripts. Genes whose expression is downregulated after miRNA mimics overexpression were compared to an experimental TGF-β signature obtained in the same cells (MRC5 cells). TGF-β signature consists of 368 transcripts downregulated in response to TGF-β (log2 ratio <-1, adj.p value<0.01). In each case, graphs show the enrichment plot, the score at the peak corresponding to the ES and the position of the TGF-β gene set in the ranked list of genes (each transcript is indicated by a vertical bar). (C,D) Overrepresentation of miRNA predicted targets in the set of downregulated transcripts following miR-199a-5p/3p and miR-214-3p transfection using (C) Ingenuity Pathway Analysis and (D) the webtool miRonTop.
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