LAMP1 and cancer: According to the circBase (http://www.circbase.org/) and UCSC Genome Browser Home (http://genome.ucsc.edu/), we found that Circ_0030998 was 220 base pairs (bp) in length located at chr13:113963957-113964177 and it was derived from the exon 3 of host gene LAMP1, which acted as an oncogene in the progression of several cancers [19, 20].