scholarly journals Erratum for: The CircRNA-ACAP2/Hsa-miR-21-5p/Tiam1 Regulatory Feedback Circuit Affects the Proliferation, Migration, and Invasion of Colon Cancer SW480 Cells

2021 ◽  
Vol 55 (5) ◽  
pp. 657-657
Keyword(s):  
Colon Cancer ◽  
Migration And Invasion ◽  
Feedback Circuit ◽  
Sw480 Cells

scholarly journals The CircRNA-ACAP2/Hsa-miR-21-5p/ Tiam1 Regulatory Feedback Circuit Affects the Proliferation, Migration, and Invasion of Colon Cancer SW480 Cells

2018 ◽  
Vol 49 (4) ◽  
pp. 1539-1550 ◽  
Author(s):  
Jin-Hua He ◽  
Yu-Guang Li ◽  
Ze-Ping Han ◽  
Jia-Bin Zhou ◽  
Wei-Ming Chen ◽  
...  
Keyword(s):  
Gene Expression ◽  
Colon Cancer ◽  
Cell Proliferation ◽  
Target Gene ◽  
Inhibitory Effect ◽  
Sw480 Cell ◽  
Luciferase Reporter ◽  
Migration And Invasion ◽  
Feedback Circuit ◽  
Sw480 Cells

Background/Aims: Circular RNAs (circRNAs), a type of RNA that is widely expressed in human cells, have essential roles in the development and progression of cancer. CircRNAs contain microRNA (miRNA) binding sites and can function as miRNA sponges to regulate gene expression by removing the inhibitory effect of an miRNA on its target gene. Methods: We used the bioinformatics software TargetScan and miRanda to predict circRNA-miRNA and miRNAi-Mrna interactions. Rate of inhibiting of proliferation was measured using a WST-8 cell proliferation assay. Clone formation ability was assessed with a clone formation inhibition test. Cell invasion and migration capacity was evaluated by performing a Transwell assay. Relative gene expression was assessed using quantitative real-time polymerase chain reaction and relative protein expression levels were determined with western blotting. circRNA and miRNA interaction was confirmed by dual-luciferase reporter and RNA-pull down assays. Results: In the present study, the miRNA hsa-miR-21-5p was a target of circRNA-ACAP2, and T lymphoma invasion and metastasis protein 1 (Tiam1) was identified as a target gene of hsa-miR-21-5p. CircRNA-ACAP2 and Tiam1 were shown to be highly expressed in colon cancer tissue and colon cancer SW480 cells, but miR-21-5p was expressed at a low level. SW480 cell proliferation was suppressed when the expression of circRNA-ACAP2 and Tiam1 was decreased and the expression of miR-21-5p was increased in vivo and in vitro. SW480 cell migration and invasion were also inhibited under the same circumstance. The circRNA-ACAP2 interaction regulated the expression of miR-21-5p, and miR-21-5p regulated the expression of Tiam1. Down-regulation of circRNA-ACAP2 promoted miR-21-5p expression, which further suppressed the transcription and translation of Tiam1. Conclusion: The present study shows that the circRNA-ACAP2/hsa-miR-21-5p/Tiam1 regulatory feedback circuit could affect the proliferation, migration, and invasion of colon cancer SW480 cells. This was probably due to the fact that circRNA-ACAP2 could act as a miRNA sponge to regulate Tiam1 expression by removing the inhibitory effect of miR-21-5p on Tiam1 expression. The results from this study have revealed new insights into the pathogenicity of colon cancer and may provide novel therapeutic targets for the treatment of colon cancer.

scholarly journals Jiedu Sangen Decoction Inhibits Migration and Invasion of Colon Cancer SW480 Cells via Suppressing Epithelial Mesenchymal Transition

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Kai Zhang ◽  
Tao Peng ◽  
Qingying Yan ◽  
Leitao Sun ◽  
Haojun Miao ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Laser Scanning ◽  
Epithelial Mesenchymal Transition ◽  
Laser Scanning Microscopy ◽  
Migration And Invasion ◽  
Confocal Laser ◽  
Dependent Manner ◽  
Mesenchymal Transition ◽  
Matrigel Invasion ◽  
Sw480 Cells

Jiedu Sangen Decoction (JSD), a traditional Chinese medicine (TCM) formula, has been widely used in China to treat gastrointestinal cancer, especially as an adjuvant therapy in colorectal cancer (CRC) patients. This study aimed to evaluate the efficacy of JSD and Jiedu Sangen aqueous extract (JSAE) in colon cancer cells and explored the underlining mechanisms by cytotoxicity assay, scratch assay, transwell migration assay, matrigel invasion assay, confocal laser scanning microscopy, and western blot analysis. We demonstrated that JSAE inhibited the growth of colon cancer SW480 cells in a dose-dependent manner and JSAE repressed cancer cell migration and invasion. Furthermore, epithelial mesenchymal transition (EMT) was reversed by JSAE via enhancing E-cadherin expression and attenuating protein levels of EMT promoting factors such as N-cadherin, Slug, and ZEB1. These findings provided the first experimental evidence confirming the efficacy of JSAE in repressing invasion and metastasis of CRC and paving a way for the broader use of JSD in clinic.

scholarly journals Hsa_Circ_0007843 Acts as a mIR-518c-5p Sponge to Regulate the Migration and Invasion of Colon Cancer SW480 Cells

2020 ◽  
Vol 11 ◽  
Author(s):  
Jin Hua He ◽  
Ze Ping Han ◽  
Jin Gen Luo ◽  
Jian Wei Jiang ◽  
Jia Bin Zhou ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Migration And Invasion ◽  
Sw480 Cells

scholarly journals miR-200c/FUT4 axis prevents the proliferation of colon cancer cells by downregulating the Wnt/β-catenin pathway

2020 ◽  
Author(s):  
Jinchun Cong ◽  
Chuanjia Yang ◽  
Zhixiu Xia ◽  
Jian Gong ◽  
Hong Zhang
Keyword(s):  
Colon Cancer ◽  
Quantitative Polymerase Chain Reaction ◽  
Cell Counting ◽  
Migration And Invasion ◽  
Mrna Levels ◽  
Biological Behaviour ◽  
Western Blots ◽  
Sw480 Cells ◽  
Related Proteins

Abstract BackgroundMicroRNA(miR)-200c has been widely reported to be involved in colon cancer progress. However, the mechanisms of miR-200c in regulating tumor metastasis and growth remain to be fully elucidated. This study aimed to investigate the mechanism of miR-200c targets fucosyltransferase 4 (FUT4) on the proliferation of colon cancer.MethodsThe miR-200c and FUT4 mRNA levels in LoVo and SW480 cells were measured by real-time quantitative polymerase chain reaction. Further, miR-200c mimic, FUT4 siRNA and FUT4 mimic were transfected into cells, separately. Cell counting kit-8, plate colony formation and transwell assays were used to analyse the cells biological behaviour.. Immunofluorescence was used to analyse the Ki-67 expression Moreover, the Wnt/β-catenin pathway-related proteins were detected by western blots. A double luciferase experiment was performed to confirm the relationship between miR-200c and FUT4. In vivo, tumour growth and Wnt/β-catenin pathway-related proteins were also analysed. ResultsIn vitro, the expression of miR-200c and FUT4 were negatively correlated in LoVo and SW480 cells (correlation coefficients were -0.9046 and -0.9236, respectively). MiR-200c overexpression inhibited the proliferation, migration and invasion of LoVo and SW480 cells by downregulating FUT4. The Ki67-positive cells and Wnt/β-catenin signalling pathway-related proteins were reduced in the miR-200c overexpression and FUT4 silencing groups. A dual luciferase reporting system identified FUT4 as the target of miR-200c. The results in vivo were further confirmed the foundation of cells study.ConclusionsIn summary, miR-200c overexpression inhibits proliferation of colon cancer targeting FUT4 to downregulate the Wnt/β-catenin pathway, which promises molecular targets to inhibit metastasis for colon cancer therapy.

scholarly journals The miR-200c/FUT4 axis prevents the proliferation of colon cancer cells by downregulating the Wnt/β-catenin pathway

2020 ◽  
Author(s):  
Jinchun Cong ◽  
Chuanjia Yang ◽  
Zhixiu Xia ◽  
Jian Gong ◽  
Hong Zhang
Keyword(s):  
Colon Cancer ◽  
Correlation Analysis ◽  
Cancer Cells ◽  
Pearson Correlation ◽  
Signalling Pathway ◽  
Migration And Invasion ◽  
Colon Cancer Cells ◽  
Pearson Correlation Analysis ◽  
Sw480 Cells ◽  
Related Proteins

Abstract BackgroundTo investigate the effects of miR-200c, which targets fucosyltransferase 4 (FUT4), on the proliferation, migration and invasion of colon cancer cells and to further explore its mechanism.MethodsWe assessed the miR-200c and FUT4 mRNA levels in LoVo and SW480 cells by quantitative real-time polymerase chain reaction (qRT-PCR), and their correlation was analysed by Pearson correlation analysis. LipofectamineTM 2000 transfection reagent was used to transfect miR-200c mimic, FUT4 siRNA, FUT4 mimic and FUT4 mimic negative control into LoVo and SW480 cells, and RT-PCR was used to analyse the transfection efficiency. Cell Counting Kit-8 (CCK-8), colony formation and transwell assays were used to detect the migration, invasion and proliferation of LoVo and SW480 cells. Immunofluorescence was used to analyse the expression of the Ki-67 protein. Moreover, the expression of Wnt/β-catenin signalling pathway-related proteins was detected by western blots. A double luciferase experiment was performed to verify the targeting relationship between miR-200c and FUT4. In vivo, tumour growth and Wnt/β-catenin signalling pathway-related proteins were also analysed. ResultsPearson correlation analysis showed that miR-200c and FUT4 were negatively correlated in LoVo and SW480 cells (correlation coefficients were -0.9046 and -0.9236, respectively). MiR-200c overexpression inhibited the proliferation, migration and invasion of LoVo cells by downregulating FUT4. The Ki67-positive cells and Wnt/β-catenin signalling pathway-related proteins were reduced in the miR-200c overexpression and FUT4 silencing groups. A bioinformatics analysis and a dual luciferase reporting system identified FUT4 as the target of miR-200c. ConclusionsIn conclusion, miR-200c overexpression inhibits FUT4 expression and downregulates the Wnt/β-catenin signalling pathway, thereby inhibiting the migration, invasion and proliferation of colon cancer cells.

scholarly journals Activation of P2×7 Receptor Promotes the Invasion and Migration of Colon Cancer Cells via the STAT3 Signaling

2020 ◽  
Vol 8 ◽  
Author(s):  
Wen-jun Zhang ◽  
Ce-gui Hu ◽  
Hong-liang Luo ◽  
Zheng-ming Zhu
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Receptor Activation ◽  
Migration And Invasion ◽  
Dependent Manner ◽  
Colon Cancer Cells ◽  
Stat3 Pathway ◽  
Invasion And Migration ◽  
Sw480 Cells ◽  
And Migration

The pathological mechanism of colon cancer is very complicated. Therefore, exploring the molecular basis of the pathogenesis of colon cancer and finding a new therapeutic target has become an urgent problem to be solved in the treatment of colon cancer. ATP plays an important role in regulating the progression of tumor cells. P2 × 7 belongs to ATP ion channel receptor, which is involved in the progression of tumors. In this study, we explored the effect and molecular mechanism of ATP-mediated P2 × 7 receptor on the migration and metastasis of colon cancer cells. The results showed that ATP and BzATP significantly increased the inward current and intracellular calcium concentration of LOVO and SW480 cells, while the use of antagonists (A438079 and AZD9056) could reverse the above phenomenon. We found that ATP promoted the migration and invasion of LOVO and SW480 cells and is dose-dependent on ATP concentration (100–300 μM). Similarly, BzATP (10, 50, and 100 μM) also significantly promoted the migration and invasion of colon cancer cells in a concentration-dependent manner. While P2 × 7 receptor antagonists [A438079 (10 μM), AZD9056 (10 μM)] or P2 × 7 siRNA could significantly inhibit ATP-induced colon cancer cell migration and invasion. Moreover, in vivo experiments showed that ATP-induced activation of P2 × 7 receptor promoted the growth of tumors. Furthermore, P2 × 7 receptor activation down-regulated E-cadherin protein expression and up-regulated MMP-2 mRNA and concentration levels. Knocking down the expression of P2 × 7 receptor could significantly inhibit the increase in the expression of N-cadherin, Vimentin, Zeb1, and Snail induced by ATP. In addition, ATP time-dependently induced the activation of STAT3 via the P2 × 7 receptor, and the STAT3 pathway was required for the ATP-mediated invasion and migration. Our conclusion is that ATP-induced P2 × 7 receptor activation promotes the migration and invasion of colon cancer cells, possibly via the activation of STAT3 pathway. Therefore, the P2 × 7 receptor may be a potential target for the treatment of colon cancer.

scholarly journals A TLR4-interacting peptide inhibits lipopolysaccharide-stimulated inflammatory responses, migration and invasion of colon cancer SW480 cells

2012 ◽  
Vol 1 (9) ◽  
pp. 1495-1506 ◽  
Author(s):  
Madhusoodhanan Rakhesh ◽  
Moriasi Cate ◽  
Ramani Vijay ◽  
Anant Shrikant ◽  
Awasthi Shanjana
Keyword(s):  
Colon Cancer ◽  
Inflammatory Responses ◽  
Migration And Invasion ◽  
Sw480 Cells

scholarly journals MiR-200c/FUT4 axis prevents the proliferation of colon cancer cells by downregulating the Wnt/β-catenin pathway

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jinchun Cong ◽  
Jian Gong ◽  
Chuanjia Yang ◽  
Zhixiu Xia ◽  
Hong Zhang
Keyword(s):  
Colon Cancer ◽  
Quantitative Polymerase Chain Reaction ◽  
Cell Counting ◽  
Migration And Invasion ◽  
Mrna Levels ◽  
Biological Behaviour ◽  
Western Blots ◽  
Sw480 Cells ◽  
Related Proteins

Abstract Background MicroRNA (miR)-200c has been widely reported to be involved in colon cancer progress. However, the mechanisms of miR-200c in regulating tumor metastasis and growth remain to be fully elucidated. This study aimed to investigate the mechanism of miR-200c targets fucosyltransferase 4 (FUT4) on the proliferation of colon cancer. Methods The miR-200c and FUT4 mRNA levels in LoVo and SW480 cells were measured by real-time quantitative polymerase chain reaction. Further, miR-200c mimic, FUT4 siRNA and FUT4 mimic were transfected into cells, separately. Cell counting kit-8, plate colony formation and transwell assays were used to analyse the cells biological behaviour.. Immunofluorescence was used to analyse the Ki-67 expression Moreover, the Wnt/β-catenin pathway-related proteins were detected by western blots. A double luciferase experiment was performed to confirm the relationship between miR-200c and FUT4. In vivo, tumour growth and Wnt/β-catenin pathway-related proteins were also analysed. Results In vitro, the expression of miR-200c and FUT4 were negatively correlated in LoVo and SW480 cells (correlation coefficients were − 0.9046 and − 0.9236, respectively). MiR-200c overexpression inhibited the proliferation, migration and invasion of LoVo and SW480 cells by downregulating FUT4. The Ki67-positive cells and Wnt/β-catenin signalling pathway-related proteins were reduced in the miR-200c overexpression and FUT4 silencing groups. A dual luciferase reporting system identified FUT4 as the target of miR-200c. The results in vivo were further confirmed the foundation of cells study. Conclusions In summary, miR-200c overexpression inhibits proliferation of colon cancer targeting FUT4 to downregulate the Wnt/β-catenin pathway, which promises molecular targets to inhibit metastasis for colon cancer therapy.

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