| Registro completo |
| Provedor de dados: |
ArchiMer
|
| País: |
France
|
| Título: |
Transcriptomic analysis of clam extra pallial fluids reveals immunity and cytoskeleton alterations in the first week of Brown Ring Disease development
|
| Autores: |
Rahmani, Alexandra
Corre, Erwan
Richard, Gaëlle
Bidault, Adeline
Lambert, Christophe
Oliveira, Louisi
Thompson, Cristiane
Thompson, Fabiano
Pichereau, Vianney
Paillard, Christine
|
| Data: |
2019-10
|
| Ano: |
2019
|
| Palavras-chave: |
Brown ring disease
V. tapetis
R. philippinarum
Hemocytes
Actin cytoskeleton
Beta-Thymosin
Coactosin
Resting cells
|
| Resumo: |
The Brown Ring Disease is an infection caused by the bacterium Vibrio tapetis on the Manila clam Ruditapes philippinarum. The process of infection, in the extrapallial fluids (EPFs) of clams, involves alteration of immune functions, in particular on hemocytes which are the cells responsible of phagocytosis. Disorganization of the actin-cytoskeleton in infected clams is a part of what leads to this alteration. This study is the first transcriptomic approach based on collection of extrapallial fluids on living animals experimentally infected by V. tapetis. We performed differential gene expression analysis of EPFs in two experimental treatments (healthy-against infected-clams by V. tapetis), and showed the deregulation of 135 genes. In infected clams, a downregulation of transcripts implied in immune functions (lysosomal activity and complement- and lectin-dependent PRR pathways) was observed during infection. We also showed a deregulation of transcripts encoding proteins involved in the actin cytoskeleton organization such as an overexpression of β12-Thymosin (which is an actin sequestration protein) or a downregulation of proteins that closely interact with capping proteins such as Coactosin, that counteract action of capping proteins, or Profilin. We validated these transcriptomic results by cellular physiological analyses that showed a decrease of the lysosome amounts and the disorganization of actin cytoskeleton in infected hemocytes.
|
| Tipo: |
Text
|
| Idioma: |
Inglês
|
| Identificador: |
https://archimer.ifremer.fr/doc/00510/62131/66362.pdf
DOI:10.1016/j.fsi.2019.08.025
https://archimer.ifremer.fr/doc/00510/62131/
|
| Editor: |
Elsevier BV
|
| Relação: |
info:eu-repo/grantAgreement/EC/FP7/678589/EU//VIVALDI
|
| Formato: |
application/pdf
|
| Fonte: |
Fish & Shellfish Immunology (1050-4648) (Elsevier BV), 2019-10 , Vol. 93 , P. 940-948
|
| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
|
|
