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. 2018 Feb 14;9(16):13048–13059. doi: 10.18632/oncotarget.24495

Figure 3. The expression of miR-20a is inversely related to secreted CXCL8.

Figure 3

(A) Primary fibroblasts derived from normal, colitic and cancerous stroma were analyzed for the expression levels of the primary transcript encoding miR-20a-5p (miR20HG) and its mature form were quantified by mRNAseq and qRT-PCR, respectively. (B, C) qRT-PCR for the pre-miR-20a-5p (B) and miR-20a-5p (C) comparing normal and colitis-associated fibroblasts. Expression was normalized to U18 RNA. (D) Expression of c-MYC by mRNAseq. (E) Levels of CXCL8 mRNA and protein by mRNAseq and ELISA. Statistical significance in (A–E) was determined using t-test; asterisks indicate significance (*p < 0.05 and **p < 0.01). (F) Spearman’s correlation of miR-20a expression vs. secreted CXCL8 revealing a statistically significant inverse monotonic relationship (p < 0.001; rs = –0.654). Normal colon fibroblasts: black, colitic colon fibroblasts: red, cancer-associated fibroblasts: green.