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In recent years,increasing evidence has suggested that a novel class of non-coding RNA,long non-coding RNA (lncRNA),is commonly altered at various stages of cancer progression.lncRNAs are a class of pervasively transcribed RNA molecules with a length of more than 200 nucleotides that do not encode proteins.Many lncRNA-related databases are developed for deciphering lncRNA functions in human cancers.However,our knowledge of cancer-related lncRNAs remains limited.In particular,a public resource of high-quality curated cancerassociated lncRNAs remains unavailable.