TY - JOUR AB - Gallbladder cancer (GBC) is a carcinoma of the biliary tract, which is common in developing countries and is associated with a high fatality rate. The aim of the present study was to investigate the mechanisms underlying the occurrence and development of GBC. A decrease in the expression of miR‑146b‑5p and an increase in the expression of its target gene Toll‑like receptor 4 (TLR4) were first observed in GBC tissues. Further study demonstrated that an increase in TLR4 expression caused by a decrease in miR‑146b‑5p expression led to activation of nuclear factor (NF)‑κB signaling. GBC cells were cultured in vitro, and it was observed that overexpression of miR‑146b‑5p effectively inhibited their viability, proliferation, migration and invasion, and increased their apoptosis. Using a BALB/c nude mouse xenograft model, it was demonstrated that overexpression of miR‑146b‑5p was sufficient to reduce tumor volume and alleviate pathological characteristics. Overall, the results of the present study indicated that the decrease in the expression of miR‑146b‑5p increased TLR4 expression and indirectly activated the NF‑κB signaling pathway, thereby regulating the development of GBC. AD - Research Institute of General Surgery, Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Nanjing, Jiangsu 210002, P.R. China Department of Neurology, Nanjing Central Hospital, Nanjing, Jiangsu 210018, P.R. China Department of General Surgery, Nanjing Central Hospital, Nanjing, Jiangsu 210018, P.R. China AU - Ouyang,Bin AU - Pan,Ningfeng AU - Zhang,Haifeng AU - Xing,Chuanming AU - Ji,Wu DA - 2021/04/01 DO - 10.3892/or.2021.7966 IS - 4 JO - Oncol Rep KW - gallbladder cancer miR‑146b‑5p proliferation apoptosis Toll‑like receptor 4 PY - 2021 SN - 1021-335X 1791-2431 SP - 15 ST - miR‑146b‑5p inhibits tumorigenesis and metastasis of gallbladder cancer by targeting Toll‑like receptor 4 via the nuclear factor‑κB pathway Corrigendum in /10.3892/or.2024.8699 T2 - Oncology Reports TI - miR‑146b‑5p inhibits tumorigenesis and metastasis of gallbladder cancer by targeting Toll‑like receptor 4 via the nuclear factor‑κB pathway Corrigendum in /10.3892/or.2024.8699 UR - https://doi.org/10.3892/or.2021.7966 VL - 45 ER -