PUBLICATION
Evaluation of VEGF Mediated Pro-angiogenic and Hemostatic Effects and Chemical Marker Investigation for Typhae Pollen and its processed product
- Authors
- Gao, M., Ge, Z., Deng, R., Bao, B., Yao, W., Cao, Y., Shan, M., Cheng, F., Yan, H., Chen, P., Zhang, L.
- ID
- ZDB-PUB-201120-169
- Date
- 2020
- Source
- Journal of ethnopharmacology 268: 113591 (Journal)
- Registered Authors
- Keywords
- Carbonized Typhae Pollen, Chemical markers, Hemostasis, Pro-angiogenesis, Typhae Pollen
- MeSH Terms
-
- Angiogenesis Inducing Agents/isolation & purification
- Angiogenesis Inducing Agents/pharmacology*
- Animals
- Animals, Genetically Modified
- Biomarkers/metabolism
- Dose-Response Relationship, Drug
- Drug Evaluation, Preclinical/methods
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology*
- Hemostatics/isolation & purification
- Hemostatics/pharmacology*
- Pollen*
- Typhaceae*
- Vascular Endothelial Growth Factor A/biosynthesis*
- Vascular Endothelial Growth Factor A/genetics
- Zebrafish
- PubMed
- 33212176 Full text @ J. Ethnopharmacol.
Citation
Gao, M., Ge, Z., Deng, R., Bao, B., Yao, W., Cao, Y., Shan, M., Cheng, F., Yan, H., Chen, P., Zhang, L. (2020) Evaluation of VEGF Mediated Pro-angiogenic and Hemostatic Effects and Chemical Marker Investigation for Typhae Pollen and its processed product. Journal of ethnopharmacology. 268:113591.
Abstract
Ethnopharmacological relevance Typhae Pollen (TP) is a well-known Traditional Chinese Medicine (TCM) to remove blood stasis. Carbonized Typhae Pollen (CTP), a processed product of TP after being stir-fried, has been widely applied to clinical practice with its capability of hemostasis. However, the underlying mechanism of TP and CTP are still not fully elucidated and discrimination against TP and CTP remains a challenge.
Aim of study The aim of this study is to investigate whether TP could remove blood stasis by promoting angiogenesis and the process of carbonizing it could enhance hemostatic effect. Meanwhile, some chemical markers for quality control of CTP had better to be found.
Material and methods The changes of constituents between TP and CTP were analyzed by UPLC-QTOF-MS/MS. We investigated pro-angiogenic and hemostatic effects of TP and CTP in two zebrafish models: VRI-induced ISV insufficiency model and Ator-induced cerebral hemorrhage model. Subsequently, quantitative real-time PCR (qRT-PCR) was applied to investigate the mechanism of pharmacological effects. Finally, chemometric method was applied to find chemical markers.
Results A total of 19 compounds were identified in qualitative analysis. The loss rate of each compound was calculated and compared. Two compounds (huaicarbon A/B) could only be detected in CTP and the content of flavonoid glycosides in CTP was significantly decreased compared with TP. The average content of the three identified flavonoid aglycones (quercetin, isorhamnetin and kaempferol) was increased about 30 percent in CTP. TP promoted pro-angiogenesis by up-regulating the expression of VEGFA, flt1 and kdr. After heating process, the pro-angiogenic activity was reduced and hemostatic activity was enhanced in CTP. Then qRT-PCR analysis found that CTP could significantly up-regulate the expression of VEGFA and vWF. In the discovery of markers, 6 chemical markers for discrimination of TP and CTP were obtained by chemometric method.
Conclusion Our research indicated that the pro-angiogenic activity of TP was involved in VEGF signaling pathway. After processing, hemostatic activity of CTP has been enhanced by up-regulating the expression of VEGFA and vWF. A chemical marker database was established to provide a scientific evidence for quality control, mechanism and the clinical application of TP and CTP.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping