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Downregulation of VEGFA inhibits proliferation, promotes apoptosis, and suppresses migration and invasion of renal clear cell carcinoma.

Zeng FC, Zeng MQ, Huang L, Li YL, Gao BM, Chen JJ, Xue RZ, Tang ZY - Onco Targets Ther (2016)

Bottom Line: Positive expression of VEGFA protein was 60.62% in RCCC tissue and 18.34% in adjacent tissue with statistically significant difference (P<0.001).VEGFA protein and mRNA expressions were higher in RCCC tissue than those in adjacent tissue (both P<0.01).After RCCC 786-O cells transfecting the VEGFA siRNA, the VEGFA mRNA and protein expressions and phosphoinositide 3-kinase and phosphorylated-AKT protein expressions were significantly decreased, cell proliferation was remarkably inhibited, cell apoptotic ratio was obviously increased, and migration distance and invasive cell number were markedly decreased compared to those in the NC group and the blank group (all P<0.05).

View Article: PubMed Central - PubMed

Affiliation: Department of Urology, Xiangya Hospital, Central South University, Changsha, People's Republic of China; Department of Urology, Hainan General Hospital, Haikou, People's Republic of China.

ABSTRACT

Objective: The aim of this study was to investigate the effects of vascular endothelial growth factor A (VEGFA) on cell proliferation, apoptosis, migration, and invasion in renal clear cell carcinoma (RCCC).

Methods: Between June 2012 and June 2015, RCCC tissues were obtained for the experimental group, and RCCC adjacent tumor-free kidney parenchyma tissues were obtained for the control group. VEGFA mRNA and protein expressions and phosphoinositide 3-kinase, serine/threonine-specific protein kinase (AKT), and phosphorylated-AKT protein expressions were detected. The chemically synthesized specific siRNA using RNA interference technology was used to inhibit VEGFA gene expression in human RCCC 786-O cells. The negative control (NC) group was transfected with NC sequence, and the blank group was transfected with no sequence. Flow cytometry, scratch test, and cell-penetrating experiment were used to detect cell proliferation, apoptosis, migration, and invasion of 786-O cells.

Results: Positive expression of VEGFA protein was 60.62% in RCCC tissue and 18.34% in adjacent tissue with statistically significant difference (P<0.001). VEGFA protein and mRNA expressions were higher in RCCC tissue than those in adjacent tissue (both P<0.01). VEGF expression in RCCC tissue was associated with Fuhrman grading and American Joint Committee on Cancer staging (both P<0.05). After RCCC 786-O cells transfecting the VEGFA siRNA, the VEGFA mRNA and protein expressions and phosphoinositide 3-kinase and phosphorylated-AKT protein expressions were significantly decreased, cell proliferation was remarkably inhibited, cell apoptotic ratio was obviously increased, and migration distance and invasive cell number were markedly decreased compared to those in the NC group and the blank group (all P<0.05).

Conclusion: Inhibition of VEGFA inhibited proliferation, promoted apoptosis, and suppressed migration and invasion of RCCC 786-O cells. VEGF has a potential role in diagnosis and therapy of RCCC.

No MeSH data available.


Related in: MedlinePlus

RCCC 786-O cell proliferation detected by CCK-8 assay.Notes: Cell absorbance of 786-O cells in each group (A) and proliferation curve of 786-O cells in each group (B). *Compared to the NC group or the blank group, P<0.05.Abbreviations: CCK-8, Cell Counting Kit-8; NC, negative control; OD, optical density; RCCC, renal clear cell carcinoma; VEGFA, vascular endothelial growth factor A.
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f5-ott-9-2131: RCCC 786-O cell proliferation detected by CCK-8 assay.Notes: Cell absorbance of 786-O cells in each group (A) and proliferation curve of 786-O cells in each group (B). *Compared to the NC group or the blank group, P<0.05.Abbreviations: CCK-8, Cell Counting Kit-8; NC, negative control; OD, optical density; RCCC, renal clear cell carcinoma; VEGFA, vascular endothelial growth factor A.

Mentions: CCK-8 was used to detect the cell proliferation activity of 786-O cells in vitro, absorbance at 450 nm reflected the relative number of living cells, and the results are shown in Figure 5A. With the increase in time, the OD values of cells in each group increased. Immediately after transfection, the OD values of cells in the three groups were detected, and there was no statistically significant difference among the three groups (P>0.05). Twenty-four hours after transfection, the OD value of 786-O cells was found significantly decreased in VEGFA siRNA-transfected group compared to that in the NC group and the blank group (both P<0.05). As can be seen from the proliferation curve (Figure 5B), the values in growth curve of VEGFA siRNA-transfected group were significantly lower than those in the NC group and the blank group 24 hours after transfection, indicating that the proliferation of 786-O cells was obviously inhibited, while the growth curve of NC group and blank group was overlapped, indicating that the proliferation abilities of 786-O cells in the two groups were not significantly different.


Downregulation of VEGFA inhibits proliferation, promotes apoptosis, and suppresses migration and invasion of renal clear cell carcinoma.

Zeng FC, Zeng MQ, Huang L, Li YL, Gao BM, Chen JJ, Xue RZ, Tang ZY - Onco Targets Ther (2016)

RCCC 786-O cell proliferation detected by CCK-8 assay.Notes: Cell absorbance of 786-O cells in each group (A) and proliferation curve of 786-O cells in each group (B). *Compared to the NC group or the blank group, P<0.05.Abbreviations: CCK-8, Cell Counting Kit-8; NC, negative control; OD, optical density; RCCC, renal clear cell carcinoma; VEGFA, vascular endothelial growth factor A.
© Copyright Policy
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4835130&req=5

f5-ott-9-2131: RCCC 786-O cell proliferation detected by CCK-8 assay.Notes: Cell absorbance of 786-O cells in each group (A) and proliferation curve of 786-O cells in each group (B). *Compared to the NC group or the blank group, P<0.05.Abbreviations: CCK-8, Cell Counting Kit-8; NC, negative control; OD, optical density; RCCC, renal clear cell carcinoma; VEGFA, vascular endothelial growth factor A.
Mentions: CCK-8 was used to detect the cell proliferation activity of 786-O cells in vitro, absorbance at 450 nm reflected the relative number of living cells, and the results are shown in Figure 5A. With the increase in time, the OD values of cells in each group increased. Immediately after transfection, the OD values of cells in the three groups were detected, and there was no statistically significant difference among the three groups (P>0.05). Twenty-four hours after transfection, the OD value of 786-O cells was found significantly decreased in VEGFA siRNA-transfected group compared to that in the NC group and the blank group (both P<0.05). As can be seen from the proliferation curve (Figure 5B), the values in growth curve of VEGFA siRNA-transfected group were significantly lower than those in the NC group and the blank group 24 hours after transfection, indicating that the proliferation of 786-O cells was obviously inhibited, while the growth curve of NC group and blank group was overlapped, indicating that the proliferation abilities of 786-O cells in the two groups were not significantly different.

Bottom Line: Positive expression of VEGFA protein was 60.62% in RCCC tissue and 18.34% in adjacent tissue with statistically significant difference (P<0.001).VEGFA protein and mRNA expressions were higher in RCCC tissue than those in adjacent tissue (both P<0.01).After RCCC 786-O cells transfecting the VEGFA siRNA, the VEGFA mRNA and protein expressions and phosphoinositide 3-kinase and phosphorylated-AKT protein expressions were significantly decreased, cell proliferation was remarkably inhibited, cell apoptotic ratio was obviously increased, and migration distance and invasive cell number were markedly decreased compared to those in the NC group and the blank group (all P<0.05).

View Article: PubMed Central - PubMed

Affiliation: Department of Urology, Xiangya Hospital, Central South University, Changsha, People's Republic of China; Department of Urology, Hainan General Hospital, Haikou, People's Republic of China.

ABSTRACT

Objective: The aim of this study was to investigate the effects of vascular endothelial growth factor A (VEGFA) on cell proliferation, apoptosis, migration, and invasion in renal clear cell carcinoma (RCCC).

Methods: Between June 2012 and June 2015, RCCC tissues were obtained for the experimental group, and RCCC adjacent tumor-free kidney parenchyma tissues were obtained for the control group. VEGFA mRNA and protein expressions and phosphoinositide 3-kinase, serine/threonine-specific protein kinase (AKT), and phosphorylated-AKT protein expressions were detected. The chemically synthesized specific siRNA using RNA interference technology was used to inhibit VEGFA gene expression in human RCCC 786-O cells. The negative control (NC) group was transfected with NC sequence, and the blank group was transfected with no sequence. Flow cytometry, scratch test, and cell-penetrating experiment were used to detect cell proliferation, apoptosis, migration, and invasion of 786-O cells.

Results: Positive expression of VEGFA protein was 60.62% in RCCC tissue and 18.34% in adjacent tissue with statistically significant difference (P<0.001). VEGFA protein and mRNA expressions were higher in RCCC tissue than those in adjacent tissue (both P<0.01). VEGF expression in RCCC tissue was associated with Fuhrman grading and American Joint Committee on Cancer staging (both P<0.05). After RCCC 786-O cells transfecting the VEGFA siRNA, the VEGFA mRNA and protein expressions and phosphoinositide 3-kinase and phosphorylated-AKT protein expressions were significantly decreased, cell proliferation was remarkably inhibited, cell apoptotic ratio was obviously increased, and migration distance and invasive cell number were markedly decreased compared to those in the NC group and the blank group (all P<0.05).

Conclusion: Inhibition of VEGFA inhibited proliferation, promoted apoptosis, and suppressed migration and invasion of RCCC 786-O cells. VEGF has a potential role in diagnosis and therapy of RCCC.

No MeSH data available.


Related in: MedlinePlus