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BMC Complementary Medicine and Therapies
Published in: BMC Complementary Medicine and Therapies 1/2021

Open Access 01-12-2021 | Research article

Porcine placenta extract improves high-glucose-induced angiogenesis impairment

Authors: Chatchai Nensat, Worawat Songjang, Rutaiwan Tohtong, Tuangporn Suthiphongchai, Suchada Phimsen, Panthip Rattanasinganchan, Pornphimon Metheenukul, Sarawut Kumphune, Arunya Jiraviriyakul

Published in: BMC Complementary Medicine and Therapies | Issue 1/2021

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Abstract

Background

High glucose (HG)-induced reactive oxygen species (ROS) overproduction impairs angiogenesis that is one pivotal factor of wound healing process. Angiogenesis impairment induces delayed wound healing, whereby it eventually leads to amputation in cases of poorly controlled diabetes with diabetic ulceration. Porcine placenta extract (PPE) is a natural waste product that comprises plenty of bioactive agents including growth factors and antioxidants. It was reported as an effective compound that prevents ROS generation. The goal of this study was to investigate the in vitro effect of PPE on HG-induced ROS-mediated angiogenesis impairment.

Methods

Primary endothelial cells (HUVECs) and endothelial cell line (EA.hy926) were treated with HG in the presence of PPE. The endothelial cells (ECs) viability, intracellular ROS generation, migration, and angiogenesis were determined by MTT assay, DCFDA reagent, wound healing assay, and tube formation assay, respectively. Additionally, the molecular mechanism of PPE on HG-induced angiogenesis impairment was investigated by Western blot. The angiogenic growth factor secretion was also investigated by the sandwich ELISA technique.

Results

HG in the presence of PPE significantly decreased intracellular ROS overproduction compared to HG alone. HG in the presence of PPE significantly increased ECs viability, migration, and angiogenesis compared to HG alone by showing recovery of PI3K/Akt/ERK1/2 activation. HG in the presence of PPE also decreased ECs apoptosis compared to HG alone by decreasing p53/Bax/cleaved caspase 9/cleaved caspase 3 levels and increasing Bcl 2 level.

Conclusion

PPE attenuated HG-induced intracellular ROS overproduction that improved ECs viability, proliferation, migration, and angiogenesis by showing recovery of PI3K/Akt/ERK1/2 activation and inhibition of ECs apoptosis. This study suggests PPE ameliorated HG-induced ROS-mediated angiogenesis impairment, whereby it potentially provides an alternative treatment for diabetic wounds.
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Metadata
Title
Porcine placenta extract improves high-glucose-induced angiogenesis impairment
Authors
Chatchai Nensat
Worawat Songjang
Rutaiwan Tohtong
Tuangporn Suthiphongchai
Suchada Phimsen
Panthip Rattanasinganchan
Pornphimon Metheenukul
Sarawut Kumphune
Arunya Jiraviriyakul
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Complementary Medicine and Therapies / Issue 1/2021
Electronic ISSN: 2662-7671
DOI
https://doi.org/10.1186/s12906-021-03243-z

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