Effect of Combined Administration of Astragali Radix and Salviae Miltiorrhizae Radix et Rhizoma Extract on Expressions of VEGF, KDR, AngⅠ and eNOS in Rat Bone Marrow-Derived EPCs
ZHANG Li-fang, LIU Nuan, YANG Lei, et al. Effect of Combined Administration of Astragali Radix and Salviae Miltiorrhizae Radix et Rhizoma Extract on Expressions of VEGF, KDR, AngⅠ and eNOS in Rat Bone Marrow-Derived EPCs[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(10): 150-155.
ZHANG Li-fang, LIU Nuan, YANG Lei, et al. Effect of Combined Administration of Astragali Radix and Salviae Miltiorrhizae Radix et Rhizoma Extract on Expressions of VEGF, KDR, AngⅠ and eNOS in Rat Bone Marrow-Derived EPCs[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(10): 150-155. DOI: 10.13422/j.cnki.syfjx.20180832.
Objective: To investigate the effect of the combined administration of Astragali Radix and Salviae Miltiorrhizae Radix et Rhizoma extract on the expressions of vascular endothelial
growth factor (VEGF) and its receptor kinase insert domain receptor (KDR)
angiopoietin Ⅰ (angiopoietin Ⅰ
AngⅠ) and endothelial nitricoxide synthase (ENOS) in bone marrow-derived endothelial progenitor cells (EPCs)
and its possible mechanism. Method: The bone marrow-derived EPCs after in vitro culture and identification were treated with Astragali Radix extract
Salviae Miltiorrhizae Radix et Rhizoma extract
Astragali Radix and Salviae Miltiorrhizae Radix et Rhizoma extract separately (10
10 mg·L-1
5 mg·L-1 for each). The control group was set up. Reverse transcription PCR and quantitative Real-time PCR were used to detect VEGF
KDR
AngⅠ and eNOS mRNA expressions in EPCs of each treatment group. Western blot was used to detect VEGF
KDR
AngⅠ and eNOS protein expressions in EPCs. The content of VEGF in the supernatant of culture fluid was detected by ELISA. Result: PCR results showed that compared with the control group
Salviae Miltiorrhizae Radix et Rhizoma extract group
Astragali Radix extract group and Astragali Radix and combined Salviae Miltiorrhizae Radix et Rhizoma extract group showed significant increases in VEGF
KDR
AngⅠ and eNOS expressions (P<0.05
P<0.01). According to Western blot results
compared with the control group
Salviae Miltiorrhizae Radix et Rhizoma extract group and Astragali Radix extract group showed significant increases in VEGF KDR
AngⅠ and eNOS protein expressions (P<0.05
P<0.01)
whereas the expressions of Astragali Radix and Salviae Miltiorrhizae Radix et Rhizoma extract combination group was significantly higher than that of the other three groups (P<0.01)
especially VEGF in the culture supernatant of EPCs cells. The results of ELISA showed that the content of VEGF in EPCs of Astragali Radix and Salviae Miltiorrhizae Radix et Rhizoma extract combination group was significantly higher than that in the other three groups (P<0.01). Conclusion: The combination of Astragali Radix and Salviae Miltiorrhizae Radix et Rhizoma extract can significantly regulate the angiogenic effect of EPCs
which may be closely related to the up-regulation of VEGF.