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. 2022 Jan 22;41:32. doi: 10.1186/s13046-021-02190-4

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© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 1 — Genome-wide profiling of tRFs in colorectal cancer. A&B Clustered heat map and volcano plots of the differentially expressed tRFs in three pairs of CRCs (CCWXH, CCZZB, CCZXC) and adjacent non-tumorous tissues (CCPWXH, CCPZZB, CCPZXC). Rows represent tRNAs; while columns represent tissues (top red: tumors; top blue: ANTs). C The length distribution of tRFs in CRC and adjacent non-tumorous tissues. D&E Genomic origin of the tRFs identified in human CRC and adjacent non-tumorous tissues. F. RT-qPCR to validate tRF3008A expression in 45 pairs of CRCs and adjacent non-tumorous tissues. G. RT-qPCR to validate tRF3008A expression in 7 CRC cell lines and human colon epithelial cell line. Statistical significance is measured using Student’s t test