Fig 1. The expression level of COL1A1 in normal and tumor tissues.
(A) In the TIMER database, the expression level of COL1A1 in different cancer tissues compared with normal tissues. (B) the expression level of COL1A1 in GEO. (C-E) The expression level of COL1A1 in different subtypes of glioma (A: Astrocytoma, O: Oligodendro, rO: recurrent Oligodendro, rA: recurrent Astrocytoma, AA: Anaplastic Astrocytoma, AO: Anaplastic Oligodendro, rAA: recurrent Anaplastic Astrocytoma, rAO: recurrent Anaplastic Oligodendro, GBM:Glioblastoma, rGBM: recurrent Glioblastoma.** P < 0.05,** P < 0.005, *** P < 0.001).