To access the full text documents, please follow this link: http://hdl.handle.net/2445/134711
| dc.contributor.author | Montolio Rusiñol, Marta |
|---|---|
| dc.contributor.author | Téllez i Besolí, Noèlia |
| dc.contributor.author | Biarnés Costa, Montse |
| dc.contributor.author | Soler Ramon, Joan |
| dc.contributor.author | Montanya Mias, Eduard |
| dc.date | 2019-06-06T15:55:18Z |
| dc.date | 2019-06-06T15:55:18Z |
| dc.date | 2005-01 |
| dc.date | 2019-06-06T15:55:18Z |
| dc.identifier.citation | 0963-6897 |
| dc.identifier.citation | 537269 |
| dc.identifier.uri | http://hdl.handle.net/2445/134711 |
| dc.description.abstract | In the initial days after transplantation islets are particularly vulnerable and show increased apoptosis and necrosis. We have studied the effects of caspase inhibition on this early beta cell death in syngeneically transplanted islets. Streptozotocin-diabetic C57BL/6 mice were transplanted with 150 syngeneic islets, an insufficient mass to restore normoglycemia, preincubated with or without the pan-caspase inhibitor z-VAD. fmk 2 h before transplantation. Beta cell apoptosis was increased in control islets on day 3 after transplantation (0.28 ± 0.02%) compared with freshly isolated islets (0.08 ± 0.02%, p< 0.001), and was partially reduced in transplanted islets preincubated with z-VAD.fmk 200 μM (0.14 ± 0.02%, p = 0.003) or with z-VAD.fmk 500 μM (0.17 ± 0.01%, p = 0.012), but not with a lower z-VAD.fmk (100 μM) concentration. Diabetic mice transplanted with islets preincubated with z-VAD.fmk 500 μM showed an improved metabolic evolution compared with control and z-VAD.fmk 200 μM groups. The z-VAD.fmk 500 μM group showed an overall lower blood glucose after transplantation (p = 0.02), and at the end of the study blood glucose values were reduced compared with transplantation day (15.7 ± 3.6 vs. 32.5 ± 0.5 mmol/L, p = 0.001). In contrast, blood glucose was not significantly changed in control and z-VAD.fmk 200 μM groups. Four weeks after transplantation beta cell mass was higher in z-VAD.fmk 500 μM group (0.15 ± 0.02 mg) than in the control group (0.10 ± 0.02 mg) (p = 0.043). In summary, the treatment of freshly isolated islets with the caspase inhibitor z-VAD.fmk reduced the subsequent apoptosis of the islets once they were transplanted and improved the outcome of the graft. |
| dc.format | 7 p. |
| dc.format | application/pdf |
| dc.language.iso | eng |
| dc.publisher | Cognizant Communication Corporation |
| dc.relation | Reproducció del document publicat a: https://doi.org/10.3727/000000005783983269 |
| dc.relation | Cell Transplantation, 2005, vol. 14, num. 1, p. 59-65 |
| dc.relation | https://doi.org/10.3727/000000005783983269 |
| dc.rights | cc-by-nc (c) Cognizant Communication Corporation, 2005 |
| dc.rights | info:eu-repo/semantics/openAccess |
| dc.rights | http://creativecommons.org/licenses/by-nc/3.0/es |
| dc.subject | Cèl·lules B |
| dc.subject | Aminoàcids |
| dc.subject | Apoptosi |
| dc.subject | Empelts de teixits |
| dc.subject | Illots de Langerhans |
| dc.subject | B cells |
| dc.subject | Amino acids |
| dc.subject | Apoptosis |
| dc.subject | Tissue transplantation |
| dc.subject | Islands of Langerhans |
| dc.title | Short term culture with the caspases inhibitor z-VAD fmk reduces beta cell apoptosis in transplanted islets and improves the metabolic outcome of the graft |
| dc.type | info:eu-repo/semantics/article |
| dc.type | info:eu-repo/semantics/publishedVersion |
Related documents
Other documents of the same author
Montolio Rusiñol, Marta; Téllez i Besolí, Noèlia; Biarnés Costa, Montse; Soler Ramon, Joan; Montanya Mias, Eduard
Biarnés Costa, Montse; Montolio Rusiñol, Marta; Nacher, Victor; Raurell, Mercè; Soler Ramon, Joan; Montanya Mias, Eduard
Montolio Rusiñol, Marta; Téllez i Besolí, Noèlia; Soler Ramon, Joan; Montanya Mias, Eduard
Montolio Rusiñol, Marta; Téllez i Besolí, Noèlia; Soler Ramon, Joan; Montanya Mias, Eduard
Merino, Juan F.; Nacher, Victor; Raurell, Mercè; Biarnés Costa, Montse; Soler Ramon, Joan; Montanya Mias, Eduard