Ming-xia CHEN, Jian-xun LIU, Qu-xing WU, et al. Inhibitory Effect of Cinnamaldehyde on Proliferation, Migration and Tube Formation of VEGF-induced Endothelial Cells via JAK2/STAT3 Pathway[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(8): 28-33.
DOI:
Ming-xia CHEN, Jian-xun LIU, Qu-xing WU, et al. Inhibitory Effect of Cinnamaldehyde on Proliferation, Migration and Tube Formation of VEGF-induced Endothelial Cells via JAK2/STAT3 Pathway[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(8): 28-33. DOI: 10.13422/j.cnki.syfjx.20190704.
Inhibitory Effect of Cinnamaldehyde on Proliferation, Migration and Tube Formation of VEGF-induced Endothelial Cells via JAK2/STAT3 Pathway
To investigate the effect and mechanism of cinnamaldehyde on the angiogenesis of diabetic retinopathy
and the effect of cinnamaldehyde on vascular endothelial growth factor (VEGF) induced proliferation
migration
tube formation and Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) pathway of EA.hy 926 cells were observed.
Method:
2
EA.hy 926 cells were divided into normal control group
model group (7 μg·L
-1
VEGF)
and VEGF+ cinnamaldehyde group (60
90
120
150 μmol·L
-1
). The methyl thiazolyl tetrazolium (MTT) assay and scratch test were used to observe the effect of cinnamaldehyde on the proliferation and migration of EA.hy 926 cells induced by VEGF. EA.hy 926 cells were divided into normal control group
model group (7 μg·L
-1
VEGF)
and VEGF+ cinnamaldehyde group (90
150 μmol·L
-1
). The tube formation experiment was used to observe the effect of cinnamaldehyde on the tube formation of EA.hy 926 cells induced by VEGF. EA.hy 926 cells were divided into normal control group
model group (7 μg·L
-1
VEGF)
VEGF+ AG490 group (50 μmol·L
-1
)
VEGF+ cinnamaldehyde group (90 μmol·L
-1
)
VEGF+ cinnamaldehyde group (150 μmol·L
-1
)
and VEGF+ cinnamaldehyde group (150 μmol·L
-1
)+ AG490 group (50 μmol·L
-1
). Western Blot method was used to explore the effect of cinnamaldehyde on the JAK2/STAT3 signaling pathway in EA.hy 926 cells induced by VEGF.
Result:
2
Compared with the control group
model group obviously promoted the proliferation and migration of EA.hy 926 cells(
P
<
0.01). Compared with the model group
cinnamaldehyde (60
90
120
150 μmol·L
-1
) significantly suppressed VEGF-induced proliferation and migration of EA.hy 926 cells (
P
<
0.01). Compared with the control group
VEGF group could promote the tube formation of EA.hy 926 cells. The number of nodes
junctions
meshes and vascular branches were increased
but with no statistical difference. Compared with the model group
cinnamaldehyde (90
150 μmol·L
-1
) showed an obvious inhibitory effect on the number of nodes
junctions and meshes of tubules (
P
<
0.05
P
<
0.01). Compared with the control group
the expressions of p-JAK2
p-STAT3
and STAT3 in the model group were significantly increased (
P
<
0.05
P
<
0.01). Compared with the model group
Cinnamaldehyde (150 μmol·L
-1
) significantly reduced the expressions of P-JAK2
P-STAT3
STAT3 proteins (
P
<
0.01). Cinnamaldehyde (90 μmol·L
-1
) obviously reduced the expressions of p-STAT3 and STAT3 proteins (
P
<
0.05
P
<
0.01).
Conclusion:
2
Cinnamaldehyde showed a significantly inhibitory effect on the proliferation
migration and tube formation of VEGF-induced EA.hy 926 cells
which was related to the inhibition of the activation of JAK2/STAT3 pathway.
CHEN M X , LV H B , GAN J K , et al . Tang wang ming mu granule attenuates diabetic retinopathy in type 2 diabetes rats [J]. Front Physiol , 2017 , doi: 10.3389/fphys.2017.01065 doi:10.3389/fphys.2017.01065 .
Storkebaum E , Lambrechts D , Carmeliet P. VEGF: once regarded as a specific angiogenic factor, now implicated in neuroprotection [J]. Bioessays , 2004 , 26 ( 9 ): 943 - 954 .
Olsson A K , Dimberg A , Kreuger J , et al . VEGF receptor signaling in control of vascular function [J]. Nat Rev Mol Cell Biol , 2006 , 7 ( 5 ): 359 - 371 .
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