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Background LncRNA PCAT29 has been reported to play a role in the development of cancer; the role of FLOT1 in renal carcinoma has been also identified. This study aimed at exploring the interaction between them and their influence on the progression of renal carcinoma. M ethods The expression levels of lncRNA PCAT29 and the FLOT1 protein in tissues were determined separately using qRT-PCR and western blot, respectively. The endogenous expression of genes was modulated by recombinant plasmid and cell transfection. The cell viability, invasion, and migration were detected by MTT assay, transwell assay, and wound-healing cell migration assay, respectively. Any binding and interactions between the RNA and the proteins were determined with RNA immunoprecipitation and RNA pull-down assays. A nude mouse model for renal carcinoma was established for the i n vivo  expression of PCAT29. R esults In renal carcinoma tissues, the expression of lncRNA PCAT29 was down-regulated while that of FLOT1 was up-regulated. PCAT29 negatively regulated FLOT1, and the overexpression of PCAT29 inhibited the cell proliferation viability, invasion, and migration of renal carcinoma by down-regulating FLOT1. The in vivo  expression of PCAT29 inhibited tumor growth in a mouse model of renal carcinoma. C onclusion LncRNA PCAT29 inhibited the cell proliferation viability, invasion, and migration in renal carcinoma by down-regulating FLOT1, thereby suppressing tumor growth. Keywords : LncRNA PCAT29; renal carcinoma; cell proliferation; cell invasion and migration; FLOT1

LncRNA PCAT29 suppresses cell proliferation, invasion, and migration in renal carcinoma by regulating FLOT1