Muestra métricas de impacto externas asociadas a la publicación. Para mayor detalle:
| Indexado |
|
||||
| DOI | 10.1016/J.PEPTIDES.2021.170646 | ||||
| Año | 2021 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Megalin-mediated albumin endocytosis plays a critical role in albumin reabsorption in proximal tubule (PT) epithelial cells (PTECs). Some studies have pointed out the modulatory effect of bradykinin (BK) on urinary protein excretion, but its role in PT protein endocytosis has not yet been determined. Here, we studied the possible correlation between BK and albumin endocytosis in PT. Using LLC-PK1 cells, a model of PTECs, we showed that BK specifically inhibited megalin-mediated albumin endocytosis. This inhibitory effect of BK was mediated by B2 receptor (B2R) because it was abolished by HOE140, an antagonist of B2R, but it was not affected by Lys-des-Arg9-BK, an antagonist of B1. BK induced the stall of megalin in EEA1+ endosomes, but not in LAMP1+ lysosomes, leading to a decrease in surface megalin expression. In addition, we showed that BK, through B2R, activated calphostin C-sensitive protein kinase C, which mediated its effect on the surface megalin expression and albumin endocytosis. These results reveal an important modulatory mechanism of PT albumin endocytosis by BK, which opens new possibilities to understanding the effect of BK on urinary albumin excretion.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Alves, Sarah A.S. | Mujer |
Universidade Federal do Rio de Janeiro - Brasil
UNIV FED RIO DE JANEIRO - Brasil |
| 2 | Florentino, Lucas S. | Hombre |
Universidade Federal do Rio de Janeiro - Brasil
UNIV FED RIO DE JANEIRO - Brasil |
| 3 | Teixeira, Douglas E. | Hombre |
Universidade Federal do Rio de Janeiro - Brasil
UNIV FED RIO DE JANEIRO - Brasil |
| 4 | Silva-Aguiar, Rodrigo P. | Hombre |
Universidade Federal do Rio de Janeiro - Brasil
UNIV FED RIO DE JANEIRO - Brasil |
| 5 | Peruchetti, Diogo B. | Hombre |
Universidade Federal do Rio de Janeiro - Brasil
UNIV FED RIO DE JANEIRO - Brasil |
| 6 | Oliveira, Ana Carolina | Mujer |
Universidade Federal do Rio de Janeiro - Brasil
UNIV FED RIO DE JANEIRO - Brasil |
| 7 | Scharfstein, Julio | Hombre |
Universidade Federal do Rio de Janeiro - Brasil
UNIV FED RIO DE JANEIRO - Brasil |
| 8 | MARZOLO-CANALES, MARIA PAZ | Mujer |
Pontificia Universidad Católica de Chile - Chile
|
| 9 | Pinheiro, Ana Acacia S. | Mujer |
Universidade Federal do Rio de Janeiro - Brasil
UNIV FED RIO DE JANEIRO - Brasil Rio de Janeiro Innovat Network Nanosyst Hlth Nano - Brasil Rio de Janeiro Innovation Network in Nanosystems for Health-NanoSAÚDE/FAPERJ - Brasil |
| 10 | Caruso-Neves, Celso | Hombre |
Universidade Federal do Rio de Janeiro - Brasil
UNIV FED RIO DE JANEIRO - Brasil Rio de Janeiro Innovat Network Nanosyst Hlth Nano - Brasil Natl Inst Sci & Technol Regenerat Med - Brasil Rio de Janeiro Innovation Network in Nanosystems for Health-NanoSAÚDE/FAPERJ - Brasil National Institute of Science and Technology for Regenerative Medicine - Brasil |
| Fuente |
|---|
| Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro |
| Conselho Nacional de Desenvolvimento Científico e Tecnológico |
| Agradecimiento |
|---|
| This work was supported by Conselho Nacional de Desenvolvimento Cientifico e Tecnologico [423724/2018-5 to A.A.S.P., 309795/2018-4 to A.A.S.P., 303793/2015-5 to C.C.N., 401700/2020-8 to C.C.N.]; and the Fundacao Carlos Chagas Filho de Amparo `a Pesquisa do Estado do Rio de Janeiro [E-26/202.556/2019 to A.A.S.P., E-26/210.930/2019 to A.A.S.P., E-26/211.710/2015 to C.C.N., E-26/202.833/2017 to C.C.N., E-26/010.000983/2019 to C.C.N., E-26/210.181/2020 to C.C.N.]. |
| This work was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico [ 423724/2018-5 to A.A.S.P., 309795/2018-4 to A.A.S.P., 303793/2015-5 to C.C.N., 401700/2020-8 to C.C.N.]; and the Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro [ E-26/202.556/2019 to A.A.S.P., E-26/210.930/2019 to A.A.S.P., E-26/211.710/2015 to C.C.N., E-26/202.833/2017 to C.C.N., E-26/010.000983/2019 to C.C.N., E-26/210.181/2020 to C.C.N.]. |