Number of the records: 1
Decellularized Pancreatic Tail as Matrix for Pancreatic Islet Transplantation into the Greater Omentum in Rats
- 1.
SYSNO ASEP 0565357 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Decellularized Pancreatic Tail as Matrix for Pancreatic Islet Transplantation into the Greater Omentum in Rats Author(s) Berková, Z. (CZ)
Zacharovová, K. (CZ)
Pátiková, A. (CZ)
Leontovyc, I. (CZ)
Hladíková, Z. (CZ)
Červený, D. (CZ)
Tihlaříková, Eva (UPT-D) RID, ORCID, SAI
Neděla, Vilém (UPT-D) RID, ORCID, SAI
Girman, P. (CZ)
Jirák, D. (CZ)
Saudek, F. (CZ)Article number 171 Source Title Journal of Functional Biomaterials. - : MDPI - ISSN 2079-4983
Roč. 13, č. 4 (2022)Number of pages 17 s. Publication form Online - E Language eng - English Country CH - Switzerland Keywords pancreas decellularization ; splenic vein perfusion ; extracellular matrix skeletons ; transplantation into the omentum ; advanced environmental scanning electron microscopy Subject RIV FB - Endocrinology, Diabetology, Metabolism, Nutrition OECD category Endocrinology and metabolism (including diabetes, hormones) R&D Projects GA22-25799S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UPT-D - RVO:68081731 UT WOS 000901294600001 EID SCOPUS 85144872942 DOI 10.3390/jfb13040171 Annotation Infusing pancreatic islets into the portal vein currently represents the preferred approach for islet transplantation, despite considerable loss of islet mass almost immediately after implantation. Therefore, approaches that obviate direct intravascular placement are urgently needed. A promising candidate for extrahepatic placement is the omentum. We aimed to develop an extracellular matrix skeleton from the native pancreas that could provide a microenvironment for islet survival in an omental flap. To that end, we compared different decellularization approaches, including perfusion through the pancreatic duct, gastric artery, portal vein, and a novel method through the splenic vein. Decellularized skeletons were compared for size, residual DNA content, protein composition, histology, electron microscopy, and MR imaging after repopulation with isolated islets. Compared to the other approaches, pancreatic perfusion via the splenic vein provided smaller extracellular matrix skeletons, which facilitated transplantation into the omentum, without compromising other requirements, such as the complete depletion of cellular components and the preservation of pancreatic extracellular proteins. Repeated MR imaging of iron-oxide-labeled pancreatic islets showed that islets maintained their position in vivo for 49 days. Advanced environmental scanning electron microscopy demonstrated that islets remained integrated with the pancreatic skeleton. This novel approach represents a proof-of-concept for long-term transplantation experiments. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2023 Electronic address https://www.mdpi.com/2079-4983/13/4/171
Number of the records: 1