Reference - Detail
| RRC ID | 50302 |
|---|---|
| Author | Gálisová A, Fábryová E, Sticová E, Kosinová L, Jirátová M, Herynek V, Berková Z, Kříž J, Hájek M, Jirák D. |
| Title | The Optimal Timing for Pancreatic Islet Transplantation into Subcutaneous Scaffolds Assessed by Multimodal Imaging. |
| Journal | Contrast Media Mol Imaging |
| Abstract |
Subcutaneously implanted polymeric scaffolds represent an alternative transplantation site for pancreatic islets (PIs) with the option of vascularisation enhancement by mesenchymal stem cells (MSC). Nevertheless, a proper timing of the transplantation steps is crucial. In this study, scaffolds supplemented with plastic rods were implanted into diabetic rats and two timing schemes for subsequent transplantation of bioluminescent PIs (4 or 7 days after rod removal) were examined by multimodal imaging. The cavities were left to heal spontaneously or with 10 million injected MSCs. Morphological and vascularisation changes were examined by MRI, while the localisation and viability of transplanted islets were monitored by bioluminescence imaging. The results show that PIs transplanted 4 days after rod removal showed the higher optical signal and vascularisation compared to transplantation after 7 days. MSCs slightly improved vascularisation of the graft but hindered therapeutic efficiency of PIs. Long-term glycaemia normalisation (4 months) was attained in 80% of animals. In summary, multimodal imaging confirmed the long-term survival and function of transplanted PIs in the devices. The best outcome was reached with PIs transplanted on day 4 after rod removal and therefore the suggested protocol holds a potential for further applications. |
| Volume | 2017 |
| Pages | 5418495 |
| Published | 2017-12-26 |
| DOI | 10.1155/2017/5418495 |
| PMID | 29440984 |
| PMC | PMC5758856 |
| MeSH | Allografts Animals Diabetes Mellitus, Experimental* / diagnostic imaging Diabetes Mellitus, Experimental* / surgery Graft Survival* Islets of Langerhans* / blood supply Islets of Langerhans* / diagnostic imaging Islets of Langerhans* / metabolism Islets of Langerhans* / pathology Islets of Langerhans Transplantation / methods* Luminescent Measurements* Male Mesenchymal Stem Cell Transplantation Mesenchymal Stem Cells / metabolism* Mesenchymal Stem Cells / pathology Rats Rats, Transgenic Tissue Scaffolds* |
| IF | 2.934 |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | Patent(IFI CLAIMS) |
| Total number of mentions | 1 |
| Altmetric score changes over past 6months | 0.0 |
| Resource | |
| Rats | LEW-Tg(Gt(ROSA)26Sor-luc)11Jmsk (strainID=649) |