Sildenafil Citrate Enhances Renal Organogenesis Following Metanephroi Allotransplantation into Non-Immunosuppressed Hosts

Autores de CIPF

• 

  M Victoria Moreno Manzano

  Autor

Participantes ajenos a CIPF

• Garcia-Dominguez, X
• Vera-Donoso, CD
• Lopez-Moncholi, E
• Vicente, JS
• Marco-Jimenez, F

Grupos de Investigación

• Laboratorio de Regeneración Tisular y Neuronal

  

  Jefe/a de Grupo

  M Victoria Moreno Manzano

Abstract

In order to harness the potential of metanephroi allotransplantation to the generation of a functional kidney graft on demand, we must achieve further growth post-transplantation. Sildenafil citrate (SC) is widely known as a useful inductor of angiogenesis, offering renoprotective properties due to its anti-inflammatory, antifibrotic, and antiapoptotic effects. Here, we performed a laparoscopic metanephroi allotransplantation after embedding sildenafil citrate into the retroperitoneal fat of non-immunosuppressed adult rabbit hosts. Histology and histomorphometry were used to examine the morphofunctional changes in new kidneys 21 days post-transplantation. Immunofluorescence of E-cadherin and renin and erythropoietin gene expression were used to assess the tubule integrity and endocrine functionality. After the metanephroi were embedded in a 10 mu M SC solution, the new kidneys' weights become increased significantly. The E-cadherin expression together with the renin and erythropoietin gene expression revealed its functionality, while histological mature glomeruli and hydronephrosis proved the new kidneys' excretory function. Thus, we have described a procedure through the use of SC that improves the outcomes after a metanephroi transplantation. This study gives hope to a pathway that could offer a handsome opportunity to overcome the kidney shortage.

Keywords

• kidney; metanephros; organogenesis; transplantation; regenerative medicine