Phycocyanin/PEG-b-(PG-g-PEI) attenuated hepatic ischemia/reperfusion-induced pancreatic islet injury and enlarged islet functionality
Fei Tong,1 Xiangyuan Tang,2 Daojun Liu2 1Department of Pathology and Pathophysiology, Provincial Key Discipline of Pharmacology, Jiaxing University Medical College, Jiaxing, Zhejiang Province, PR China; 2Department of Pharmaceutical Chemistry, Medical College, Shantou University, Shantou, PR China...
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doaj-016bc040ae1d4539be361bb0b569315a2020-11-25T00:27:29ZengDove Medical PressInternational Journal of Nanomedicine1178-20132019-01-01Volume 1433935143378Phycocyanin/PEG-b-(PG-g-PEI) attenuated hepatic ischemia/reperfusion-induced pancreatic islet injury and enlarged islet functionalityTong FTang XLiu DFei Tong,1 Xiangyuan Tang,2 Daojun Liu2 1Department of Pathology and Pathophysiology, Provincial Key Discipline of Pharmacology, Jiaxing University Medical College, Jiaxing, Zhejiang Province, PR China; 2Department of Pharmaceutical Chemistry, Medical College, Shantou University, Shantou, PR China Background: Hepatic ischemia/reperfusion-induced pancreatic islet injury (HI/RIPII) was an important pathophysiological phenomenon in clinics. In the present study, we observed the effects of phycocyanin on HI/RIPII. However, the half-life of phycocyanin was extremely short and limited its use in vivo. Materials and methods: In order to overcome this shortcoming, poly(ethylene glycol)-b-(poly(L-glutamic acid)-g-polyethylenimine) (PEG-b-(PG-g-PEI)) was synthesized and estimated as a nanocarrier for lengthening delivery of phycocyanin through the abdominal subcutaneous injection in rats. Phycocyanin (isoelectric point=4.3) was encapsulated with PEG-b-(PG-g-PEI) via electrostatic interactions at pH 7.4. Results: In vitro phycocyanin was fast and efficiently encapsulated and showing efficient loading and sustained release. In vivo the anti-HI/RIPII function of phycocyanin/PEG-b-(PG-g-PEI) complex was surveyed in rats using free phycocyanin as the controls, and the results showed that phycocyanin/PEG-b-(PG-g-PEI) complex reduced HI/RIPII property and enlarged islet functionality. Conclusion: These results suggested that PEG-b-(PG-g-PEI) might be treated as a potential phycocyanin nanocarrier. Keywords: phycocyanin, PEG-b-(PG-g-PEI), HI/RIPII, pancreatic isletshttps://www.dovepress.com/phycocyaninpeg-b-pg-g-pei-attenuated-hepatic-ischemiareperfusion-induc-peer-reviewed-article-IJNphycocyaninPEG-b-(PG-g-PEI)HI/RIPIIpancreatic islets |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tong F Tang X Liu D |
spellingShingle |
Tong F Tang X Liu D Phycocyanin/PEG-b-(PG-g-PEI) attenuated hepatic ischemia/reperfusion-induced pancreatic islet injury and enlarged islet functionality International Journal of Nanomedicine phycocyanin PEG-b-(PG-g-PEI) HI/RIPII pancreatic islets |
author_facet |
Tong F Tang X Liu D |
author_sort |
Tong F |
title |
Phycocyanin/PEG-b-(PG-g-PEI) attenuated hepatic ischemia/reperfusion-induced pancreatic islet injury and enlarged islet functionality |
title_short |
Phycocyanin/PEG-b-(PG-g-PEI) attenuated hepatic ischemia/reperfusion-induced pancreatic islet injury and enlarged islet functionality |
title_full |
Phycocyanin/PEG-b-(PG-g-PEI) attenuated hepatic ischemia/reperfusion-induced pancreatic islet injury and enlarged islet functionality |
title_fullStr |
Phycocyanin/PEG-b-(PG-g-PEI) attenuated hepatic ischemia/reperfusion-induced pancreatic islet injury and enlarged islet functionality |
title_full_unstemmed |
Phycocyanin/PEG-b-(PG-g-PEI) attenuated hepatic ischemia/reperfusion-induced pancreatic islet injury and enlarged islet functionality |
title_sort |
phycocyanin/peg-b-(pg-g-pei) attenuated hepatic ischemia/reperfusion-induced pancreatic islet injury and enlarged islet functionality |
publisher |
Dove Medical Press |
series |
International Journal of Nanomedicine |
issn |
1178-2013 |
publishDate |
2019-01-01 |
description |
Fei Tong,1 Xiangyuan Tang,2 Daojun Liu2 1Department of Pathology and Pathophysiology, Provincial Key Discipline of Pharmacology, Jiaxing University Medical College, Jiaxing, Zhejiang Province, PR China; 2Department of Pharmaceutical Chemistry, Medical College, Shantou University, Shantou, PR China Background: Hepatic ischemia/reperfusion-induced pancreatic islet injury (HI/RIPII) was an important pathophysiological phenomenon in clinics. In the present study, we observed the effects of phycocyanin on HI/RIPII. However, the half-life of phycocyanin was extremely short and limited its use in vivo. Materials and methods: In order to overcome this shortcoming, poly(ethylene glycol)-b-(poly(L-glutamic acid)-g-polyethylenimine) (PEG-b-(PG-g-PEI)) was synthesized and estimated as a nanocarrier for lengthening delivery of phycocyanin through the abdominal subcutaneous injection in rats. Phycocyanin (isoelectric point=4.3) was encapsulated with PEG-b-(PG-g-PEI) via electrostatic interactions at pH 7.4. Results: In vitro phycocyanin was fast and efficiently encapsulated and showing efficient loading and sustained release. In vivo the anti-HI/RIPII function of phycocyanin/PEG-b-(PG-g-PEI) complex was surveyed in rats using free phycocyanin as the controls, and the results showed that phycocyanin/PEG-b-(PG-g-PEI) complex reduced HI/RIPII property and enlarged islet functionality. Conclusion: These results suggested that PEG-b-(PG-g-PEI) might be treated as a potential phycocyanin nanocarrier. Keywords: phycocyanin, PEG-b-(PG-g-PEI), HI/RIPII, pancreatic islets |
topic |
phycocyanin PEG-b-(PG-g-PEI) HI/RIPII pancreatic islets |
url |
https://www.dovepress.com/phycocyaninpeg-b-pg-g-pei-attenuated-hepatic-ischemiareperfusion-induc-peer-reviewed-article-IJN |
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