12 June 2018 : Laboratory Research
Downregulation of TBC1 Domain Family Member 24 (BC1D24) Inhibits Breast Carcinoma Growth via IGF1R/PI3K/AKT PathwayXiusheng Qu1A, Bin Zhao2A, Min Hu3B, Zhiwu Ji4C, Jian Xu3D, Weibin Xia3D, Yikun Qu3ABCD*
Med Sci Monit 2018; 24: LBR3987-3996
BACKGROUND: TBC1 domain family member 24 (TBC1D24) pathogenic mutations affect its binding to ARF6 and then result in severe impairment of neuronal development. However, there are no reports about the expression and function of TBC1D24 in cancer. The aim of the present study was to evaluate the effect of proliferation, migration, and invasion after silencing TBC1D24 expression in breast cancer MCF-7 cells, and to elucidate the potential mechanism of TBC1D24 in breast cancer.
MATERIAL AND METHODS: The expression of TBC1D24 in breast cancer tissues and the adjacent non-tumor tissues was determined by S-P immunohistochemistry. The malignant behavior, including proliferation, migration, and invasion ability, was determined after silencing TBC1D24 in breast cancer MCF-7 cells. The expression of IGF1R was determined after silencing TBC1D24. The expression of TBC1D24 and IGF1R was detected after transfecting miR-30a mimics or inhibitors. The effect of TBC1D24 on MCF-7 cells growth in vivo was evaluated by a tumor xenograft study.
RESULTS: TBC1D24 expression was elevated and was associated with poor outcome in breast carcinoma. TBC1D24 high expression was significantly correlated with unfavorable OS and RFS for breast cancer patients (p<0.05). Silencing TBC1D24 inhibited the proliferation, migration, and invasion ability of MCF-7 cells. TBC1D24 and IGF1R expression were decreased when transfected with miR-30a mimics. However, TBC1D24 and IGF1R expression were increased when transfected with miR-30a inhibitors (p<0.05). Knockdown of TBC1D24 inhibited the expression of IGF1R, PI3K, and p-AKT (p<0.05). Knockdown of TBC1D24 abolished tumorigenicity of MCF-7 cells. The average volume and weight of tumors was lower after silencing TBC1D24 expression (P<0.05).
CONCLUSIONS: Silencing TBC1D24 inhibited MCF-7 cells growth in vitro and in vivo. TBC1D24 promoted breast carcinoma growth through the IGF1R/PI3K/AKT pathway. TBC1D24 is a potential therapeutic target for breast cancer.
Keywords: Brain Neoplasms
01 November 2021 : EditorialEditorial: What Can be Learned from National and International Vaccine Adverse Event Reporting Systems During the COVID-19 Pandemic?
Med Sci Monit 2022; 28:e935299
26 November 2021 : EditorialEditorial: SARS-CoV-2 Vaccine Responses and Breakthrough COVID-19
Med Sci Monit In Press; DOI: 10.12659/MSM.935624
08 November 2021 : Database AnalysisVirtual Screening and Molecular Docking to Study the Mechanism of Chinese Medicines in the Treatment of Cor...
Med Sci Monit In Press; DOI: 10.12659/MSM.934102
01 November 2021 : EditorialEditorial: What Can be Learned from National and International Vaccine Adverse Event Reporting Systems Duri...
Med Sci Monit 2022; 28:e935299
29 Nov 2021 : Database AnalysisIntegrated Analysis of Angiogenesis-Mediated Tumor Immune Microenvironment Pattern in Hepatocellular Carcin...
Med Sci Monit In Press; DOI: 10.12659/MSM.934937
26 Nov 2021 : Clinical ResearchSerum Uric Acid Levels in Relation to Atrial Fibrillation: A Case-Control Study
Med Sci Monit In Press; DOI: 10.12659/MSM.934007
26 Nov 2021 : Database AnalysisNetwork Pharmacology Integrated Molecular Docking Revealed the Mechanism of Jianpi Yiqi Taohua Decoction Ag...
Med Sci Monit In Press; DOI: 10.12659/MSM.933537
Most Viewed Current Articles
20 Mar 2020 : Clinical ResearchSocial Capital and Sleep Quality in Individuals Who Self-Isolated for 14 Days During the Coronavirus Diseas...
Med Sci Monit 2020; 26:e923921
15 Apr 2020 : Clinical ResearchPsychological Impact and Coping Strategies of Frontline Medical Staff in Hunan Between January and March 20...
Med Sci Monit 2020; 26:e924171
05 May 2020 : Review articleAn Evidence Based Perspective on mRNA-SARS-CoV-2 Vaccine Development
Med Sci Monit 2020; 26:e924700