HUI SUN, MASANORI KAWANO^*, TATSUYA IWASAKI, ICHIRO ITONAGA, YUTA KUBOTA, HIROSHI TSUMURA, KAZUHIRO TANAKA

Oncology Research, Vol.32, No.3, pp. 463-476, 2024, DOI:10.32604/or.2023.044085 - 06 February 2024

Abstract An important factor in the emergence and progression of osteosarcoma (OS) is the dysregulated expression of microRNAs (miRNAs). Transcription factor 7-like 1 (TCF7L1), a member of the T cell factor/lymphoid enhancer factor (TCF/LEF) transcription factor family, interacts with the Wnt signaling pathway regulator β-catenin and acts as a DNA-specific binding protein. This study sought to elucidate the impact of the interaction between miR-329-3p and TCF7L1 on the growth and apoptosis of OS and analyze the regulatory expression relationship between miRNA and mRNA in osteosarcoma cells using a variety of approaches. MiR329-3p was significantly downregulated, while… More > Graphic Abstract

Huiling Wang^*, Xin Hu^†, Feng Yang^‡, Hui Xiao^*

Oncology Research, Vol.28, No.7-8, pp. 731-744, 2020, DOI:10.3727/096504020X16100888208039

Abstract This study was designed to investigate the precise mechanisms of miR-325-3p/S100A2 axis in breast cancer (BC). In this study, we found that the level of miR-325-3p was dramatically increased in BC tissues and cell lines, and the expression of S100A2 was significantly decreased. Also, the high level of miR-325-3p was closely associated with low expression of S100A2 in BC tissues. Moreover, introduction of miR-325-3p significantly promoted proliferation, invasion, and EMT of BC cells. Bioinformatics analysis predicted that the S100A2 was a potential target gene of miR-325-3p. Luciferase reporter assay demonstrated that miR-325-3p could directly target More >

Wanjun Yu^*, Weidong Peng^*, Hanyun Sha^†, Jipeng Li^‡

Oncology Research, Vol.27, No.5, pp. 623-628, 2019, DOI:10.3727/096504018X15420734828058

Abstract Circular RNAs (circRNAs) represent a new class of noncoding RNAs that is involved in the development of cancer. However, little is known about their role in chemoresistance. In the present study, we found that hsa_circ_0003998 expression levels in lung adenocarcinoma (LAD) tissues and docetaxel-resistant cell lines (A549/DTX and H1299/DTX) were upregulated. Knockdown of hsa_circ_0003998 decreased chemoresistance, inhibited proliferation, and enhanced apoptosis in docetaxel-resistant LAD cells. Moreover, by using bioinformatics and luciferase reporter assays, we found that miR-326 was a direct target of hsa_circ_0003998. Functional analysis revealed that miR-326 mediated the effect of hsa_circ_0003998 on chemosensitivity. More >

Chijiang Gu^*, Mingyuan Zhang^*, Weiliang Sun^*, Changzheng Dong^†

Oncology Research, Vol.27, No.5, pp. 515-524, 2019, DOI:10.3727/096504018X15166183598572

Abstract Colorectal cancer (CRC) is a common clinical cancer that remains incurable in most cases. miRNAs are reported to play a part in the development of various tumors. In the present study, we found that miR-324-5p was downregulated in CRC cells, while ELAV (embryonic lethal, abnormal vision, Drosophila)-like protein 1 (ELAVL1) showed a higher expression. miR-324-5p transfection significantly inhibited the proliferation as well as invasion in both SW620 and SW480 cells. miR-324-5p mimic transfection markedly decreased the expression of ELAVL1. Luciferase reporter gene assay confirmed that ELAVL1 is a direct target of miR- 324-5p. Furthermore, cancer invasion More >

Gong-Yi Lv, Jun Miao, Xiao-Lin Zhang

Oncology Research, Vol.26, No.6, pp. 837-846, 2018, DOI:10.3727/096504017X14920318811721

Abstract Abnormal expression of long noncoding RNAs (lncRNAs) often contributes to the unrestricted growth and invasion of cancer cells. lncRNA X-inactive specific transcript (XIST) expression is upregulated in several cancers; however, its underlying mechanism in osteosarcoma (OS) has not been elucidated. In the present study, we found that XIST expression was significantly increased in OS tissues and cell lines by LncRNA Profiler and qRT-PCR. The effects of XIST and miR-320b on OS cell proliferation and invasion were studied by MTT and Transwell invasion assays. The competing relationship between XIST and miR-320b was confirmed by luciferase reporter More >

Chen Ren, Liao Jin-Yao, Huang Jing, Chen Wen-Li, Ma Xiao-Jun, Luo Xiao-Dan

Oncology Research, Vol.26, No.4, pp. 573-579, 2018, DOI:10.3727/096504017X14954923820137

Abstract THIS ARTICLE WAS WITHDRAWN BY THE PUBLISHER IN NOVEMBER 2020 More >

Sheqing Ji, Bin Zhang, Ye Kong, Fei Ma, Yawei Hua

Oncology Research, Vol.25, No.6, pp. 853-861, 2017, DOI:10.3727/096504016X14759582767486

Abstract MicroRNAs (miRNAs) play a crucial role in the development and progression of human cancers, including gastric cancer (GC). The discovery of miRNAs may provide a new and powerful tool for studying the mechanism, diagnosis, and treatment of GC. In this study, we aimed to investigate the role of miR-326 in the development and progression of GC. Quantitative PCR (qPCR) was used to measure the expression level of miR-326 in GC tissues and cell lines. We found that miR-326 was significantly downregulated during GC. In addition, overexpression of miR-326 inhibited GC cell proliferation. Fluorescence-activated cell sorting More >