The Amide Local Anesthetic Ropivacaine Attenuates Acute Rejection After Allogeneic Mouse Lung Transplantation.
Lung
; 197(2): 217-226, 2019 04.
Article
em En
| MEDLINE
| ID: mdl-30739218
ABSTRACT
PURPOSE:
Acute allograft rejection after lung transplantation remains an unsolved hurdle. The pathogenesis includes an inflammatory response during and after transplantation. Ropivacaine, an amide-linked local anesthetic, has been shown to attenuate lung injury due to its anti-inflammatory effects. We hypothesized that the drug would also be able to attenuate acute rejection (AR) after allogeneic lung transplantation.METHODS:
Allogeneic, orthotopic, single left lung transplantation was performed between BALB/c (donors) and C57BL/6 (recipients) mice. Prior to explantation, lungs were flushed with normal saline with or without ropivacaine (final concentration 1 µM). Plasma levels of tumor necrosis factor-α and interleukins - 6 and - 10 were measured 3 h after transplantation by ELISA. Lung function was assessed on postoperative day five and transplanted lungs were analyzed using histology (AR), immunohistochemistry (infiltrating leukocytes) and Western blot (phosphorylation and expression of Src and caveolin-1).RESULTS:
Ropivacaine pre-treatment significantly reduced AR scores (median 3 [minimum-maximum 2-4] for control vs. 2 [1-2] for ropivacaine, p < 0.001) and plasma levels of tumor necrosis factor-α (p = 0.01) compared to control, whereas plasma concentrations of interleukin - 6 (p = 0.008) and - 10 (p < 0.001) were increased by ropivacaine. The number of T-lymphocytes infiltrating the transplanted lung was attenuated (p = 0.02), while no differences in macrophage or B-lymphocyte numbers could be observed after ropivacaine pre-treatment. Caveolin-1 phosphorylation in ropivacaine-treated lungs was diminished (p = 0.004).CONCLUSIONS:
Pre-treatment of donor lungs with the local anesthetic ropivacaine diminished histological signs of AR after orthotopic left lung transplantation in mice, most likely due to reduced infiltration of T-lymphocytes into the graft.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Transplante de Pulmão
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Ropivacaina
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Rejeição de Enxerto
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Sobrevivência de Enxerto
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Anestésicos Locais
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Pulmão
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Anti-Inflamatórios
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article