Chao Ma, Jinfeng Han, Dong Dong, Nanya Wang

Oncology Research, Vol.26, No.5, pp. 765-773, 2018, DOI:10.3727/096504017X15021536183535

Abstract MicroRNA-152 (miR-152) expression has been reported to be downregulated in osteosarcoma (OS). However, the role of miR-152 in OS is not well documented. In the present study, we aimed to explore the function and underlying mechanism of miR-152 in OS. We found that miR-152 was underexpressed in OS tissues and cell lines. Decreased miR-152 was inversely correlated with lymph node metastasis and advanced clinical stage. Overexpression of miR-152 significantly inhibited cell proliferation, colony formation, migration, and invasion of OS cells. Bioinformatics analyses showed that miR-152 directly targeted E2F transcription factor 3 (E2F3), as further confirmed More >

Daofu Jia^*, Yanping Niu^†, Dongling Li^‡, Zhaorui Liu^§

Oncology Research, Vol.26, No.5, pp. 753-764, 2018, DOI:10.3727/096504017X15024946480113

Abstract Osteosarcoma is a highly aggressive malignant bone tumor with poor prognosis. Evidence has suggested that lncRNAs are deregulated in multiple cancers. In this study, we investigated the role of the lncRNA C2dat1 on the biological functions of osteosarcoma cells. The expressions of C2dat1, miR-34a-5p, and Sirt1 in human osteosarcoma cells were altered by transfection with their specific vectors/shRNA or mimic/inhibitor. Cell viability, migration, invasion, and apoptosis were assessed posttransfection. The mRNA and protein levels of C2dat1, miR-34a-5p, and Sirt1 were detected by qRT-PCR and Western blot. The results showed that C2dat1 suppression reduced cell viability, More >

Shanhong Duan^*, Ali Wu^†, Zhengyu Chen^‡, Yarong Yang^*, Liying Liu^*, Qi Shu^*

Oncology Research, Vol.26, No.5, pp. 713-723, 2018, DOI:10.3727/096504017X15016337254641

Abstract MicroRNAs (miRNAs) are small noncoding RNAs that are involved in human carcinogenesis and progression. miR-204 has been reported to be a tumor suppressor in several cancer types. However, the function and underlying molecular mechanism of miR-204 in cervical cancer (CC) are still unclear. In the present study, the expression level of miR-204 was measured using the qRT-PCR method in 30 paired CC clinical samples and in 6 CC cell lines. We found that the expression of miR-204 was significantly downregulated in CC tissues and cell lines compared to normal cervical tissues and cell line. miR-204… More >

Meng Yang^*, Xu Zhai^†, Tingting Ge^*, Chang Yang^*, Ge Lou^*

Oncology Research, Vol.26, No.5, pp. 703-712, 2018, DOI:10.3727/096504017X14982569377511

Abstract Expression of miR-181a-5p associates with the proliferation and progression of cancer cells via its targets. This study was designed to investigate the effect of miR-181a-5p and its target inositol polyphosphate-5- phosphatase A (INPP5A) on the progression of cervical cancers. Upregulation of miR-181a-5p was revealed in the cervical cancer cell lines HeLa and SiHa in comparison with a normal cervical epithelium cell line End1/ E6E7 (p<0.001). The inhibition and upregulation of miR-181a-5p in cervical cancer cell lines significantly reduced or increased cell proliferation and invasion capacity, accompanied with enhanced or reduced apoptosis (p<0.05). Moreover, INPP5A overexpression significantly More >

Shidan Liu¹, Jiaxi Luan¹, Yan Ding

Oncology Research, Vol.26, No.5, pp. 683-690, 2018, DOI:10.3727/096504017X14982585511252

Abstract This study aimed to investigate the role of miR-144-3p in pancreatic cancer (PC) carcinogenesis and to explore the mechanism of its function in PC. miR-144-3p was downregulated in PC tissues and cells. miR-144-3p overexpression significantly inhibited PC cell proliferation, migration, and invasion. FosB proto-oncogene, AP-1 transcription factor subunit (FOSB) was a target gene of miR-144-3p. miR-144-3p could repress PC cell proliferation, migration, and invasion by inhibiting the expression of FOSB. In conclusion, miR-144-3p plays an important role in PC cell proliferation, migration, and invasion by targeting FOSB. miR-144-3p may provide a new target for the More >

Heping Wang^*, Yanzhang Yu^†, Shuxin Fan^*, Leifeng Luo^*

Oncology Research, Vol.26, No.5, pp. 665-673, 2018, DOI:10.3727/096504017X14908298412505

Abstract Long noncoding RNA (lncRNA) taurine-upregulated gene 1 (TUG1) has been confirmed to be involved in the progression of various cancers; however, its mechanism of action in osteosarcoma has not been well addressed. In our study, TUG1 was overexpressed and miR-153 was downregulated in osteosarcoma tissues and cell lines. A loss-of-function assay showed that TUG1 knockdown suppressed the viability, colony formation, and invasion of osteosarcoma cells in vitro. Moreover, TUG1 was confirmed to be an miR-153 sponge. Ectopic expression of TUG1 reversed the inhibitory effect of miR-153 on the proliferation and invasion of osteosarcoma cells. Further More >

Yi Long Wan^*, Han Jue Dai^†, Wei Liu^‡, Hai Tao Ma^*

Oncology Research, Vol.26, No.4, pp. 637-644, 2018, DOI:10.3727/096504017X15112639918174

Abstract Claudin18 (CLDN18) is necessary for intercellular junctions and is reported to be involved in cell migration and metastasis, making it like an oncogene in various cancer types. However, the biological function and regulatory mechanisms of CLDN18 in lung adenocarcinoma are not yet clear. In this study, we found downregulation of miR-767-3p and upregulation of CLDN18 in lung adenocarcinoma tissue and cell lines. In addition, there was a negative correlation between the expression of miR-767-3p and CLDN18 in lung adenocarcinoma. Double luciferase reporter gene analysis showed that miR-767-3p modulates the expression of CLDN18 by binding its More >

Luyong Xu, Jie Li, Zheng Kuang, Yan Kuang, Hong Wu

Oncology Research, Vol.26, No.4, pp. 617-624, 2018, DOI:10.3727/096504017X15043589260618

Abstract Grb2-associated binder 1 (Gab1) is often aberrant in cancerous cells and tissues, whose alteration is responsible for aggressive phenotypes. In this study, we examined the Gab1 expression in human oral squamous cell carcinoma (OSCC) tissues and investigated the cellular and molecular effect of Gab1 on migration, invasion, and cell growth of the OSCC cell lines SCC15 and SCC25. We found that Gab1 was overexpressed in OSCC tissues and cells, which is related to the protein levels of various molecules associated with cellular proliferation, migration, and invasion. Functional assays identified that Gab1 overexpression promoted cell proliferation… More >

Shujun Liu^*1, Guigang Yan^*1, Junfu Zhang^†, Lianzhi Yu^‡

Oncology Research, Vol.26, No.4, pp. 581-591, 2018, DOI:10.3727/096504017X14953948675403

Abstract Evidence suggests that the long noncoding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is upregulated in cancer tissues, and its elevated expression is associated with hyperproliferation. However, the underlying mechanisms regarding the role of MALAT1 in retinoblastoma (RB) remain unclear. This study aimed to explore the functional role of MALAT1 in RB by targeting miR-124. The results showed that the expression of MALAT1 was significantly higher in the Y79 cell line than in the ARPE-19 cell line (p<0.01). Moreover, MALAT1 silence inhibited cell viability, migration, and invasion and promoted apoptosis in Y79 cells (p< 0.05, p<0.01,… More >

Yu Sun¹, Kai Xu¹, Miao He, Guilian Fan, Hongming Lu

Oncology Research, Vol.26, No.4, pp. 565-572, 2018, DOI:10.3727/096504017X15044461944385

Abstract Glypican 5 (GPC5) belongs to the family of heparan sulfate proteoglycans (HSPGs). It was initially known as a regulator of growth factors and morphogens. Recently, there have been reports on its correlation with the tumorigenic process in the development of some cancers. However, little is known about its precise role in prostate cancer (PCa). In the present study, we explored the expression pattern and biological functions of GPC5 in PCa cells. Our results showed that GPC5 was lowly expressed in PCa cell lines. Upregulation of GPC5 significantly inhibited PCa cell proliferation and invasion in vitro More >