2017
DOI: 10.3892/ijo.2017.4165
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E2F1 silencing inhibits migration and invasion of osteosarcoma cells via regulating DDR1 expression

Abstract: In the present study, knockdown of E2F1 impaired the migration and invasion of osteosarcoma cells. Further analysis showed that E2F1 knockdown decreased the expression of discoidin domain receptor 1 (DDR1) which plays a crucial role in many fundamental processes such as cell differentiation, adhesion, migration and invasion. Luciferase and ChIP assays confirmed that E2F1 silencing attenuated the expression of DDR1 through disrupting E2F1-mediated transcription of DDR1 in osteosarcoma cells. Similarly with the … Show more

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Cited by 36 publications
(29 citation statements)
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“…For instance, DDR1 inhibited cell migration and invasion in a chariollantoic membrane (CAM) assay [91]. Furthermore, in gastric cancer cells [34] or in osteosarcoma cells, DDR1 is involved in tumor growth in xenograft mouse model [40]. The role of DDR1 in EMT in vivo remains unclear as most studies focus on tumor growth and needs to be investigated further.…”
Section: In Vivomentioning
confidence: 99%
“…For instance, DDR1 inhibited cell migration and invasion in a chariollantoic membrane (CAM) assay [91]. Furthermore, in gastric cancer cells [34] or in osteosarcoma cells, DDR1 is involved in tumor growth in xenograft mouse model [40]. The role of DDR1 in EMT in vivo remains unclear as most studies focus on tumor growth and needs to be investigated further.…”
Section: In Vivomentioning
confidence: 99%
“…The region was a GC-rich sequence (86% GC), and a number of E2F1 binding sites (13 sites) were top-ranked ( Figure 2B). Increased E2F1 expression has been reported to be associated with cell migration and tumor development [18][19][20]. Indeed, MG cells expressed E2F1 mRNA and protein to a much greater degree compared with non-MG cells ( Figure 2C,D).…”
Section: Promoter Array Of Short C9orf3 Transcriptmentioning
confidence: 78%
“…However, both epithelial-and mesenchymal-derived cells have been shown to express either one or both receptors in physiological and pathological conditions [11][12][13][14][15][16][17][18][19][20][21] . Consistently, both DDR1 and DDR2 are expressed in cancers of epithelial 18,19,[22][23][24][25][26][27][28][29][30] and mesenchymal 17,31,32 origin. Functionally, DDRs are thought to mediate tumour cell-collagen interactions at various stages of cancer progression, where they initiate signal transduction pathways that regulate epithelial-to-mesenchymal transition (EMT), cell proliferation and survival, and metastatic dissemination 3,33 .…”
mentioning
confidence: 68%
“…Thus, the HT1080 cell system is a dependable xenograft model to elucidate the contribution of factors to tumour growth and experimental lung metastases. Importantly, like other mesenchymal cell lines and tumours 17,31,32,46 , HT1080 cells express DDR1 and DDR2 26,[47][48][49][50] . In vivo, fibrosarcomas are characterized by an abundant collagen matrix, which has been suggested to promote malignancy 51,52 .…”
mentioning
confidence: 96%
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