BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors
- Autores
- Sevdali, Eirini; Block, Violeta; Lataretu, Marie; Li, Huiying; Smulski, Cristian Roberto; Briem, Jana Susann; Heitz, Yannic; Fischer, Beate; Ramirez, Neftali Jose; Grimbacher, Bodo; Jäck, Hans-Martin; Voll, Reinhard E.; Hölzer, Martin; Schneider, Pascal; Eibel, Hermann
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Binding of BAFF to BAFFR activates in mature B cells PI3K/AKT signaling regulating protein synthesis, metabolic fitness, and survival. In humans, naive and memory B cells express the same levels of BAFFR, but only memory B cells seem to survive without BAFF. Here, we show that BAFF activates PI3K/AKT only in naive B cells and changes the expression of genes regulating migration, proliferation, growth, and survival. BAFF-induced PI3K/AKT activation requires direct interactions between BAFFR and the B cell antigen receptor (BCR) components CD79A and CD79B and is enhanced by the AKT coactivator TCL1A. Compared to memory B cells, naive B cells express more surface BCRs, which interact better with BAFFR than IgG or IgA, thus allowing stronger responses to BAFF. As ablation of BAFFR in naive and memory B cells causes cell death independent of BAFF-induced signaling, BAFFR seems to act also as an intrinsic factor for B cell survival.
Fil: Sevdali, Eirini. Albert Ludwigs University of Freiburg; Alemania
Fil: Block, Violeta. Albert Ludwigs University of Freiburg; Alemania
Fil: Lataretu, Marie. Universitat Jena; Alemania
Fil: Li, Huiying. Albert Ludwigs University of Freiburg; Alemania
Fil: Smulski, Cristian Roberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Briem, Jana Susann. Albert Ludwigs University of Freiburg; Alemania
Fil: Heitz, Yannic. Albert Ludwigs University of Freiburg; Alemania
Fil: Fischer, Beate. Albert Ludwigs University of Freiburg; Alemania
Fil: Ramirez, Neftali Jose. Albert Ludwigs University of Freiburg; Alemania
Fil: Grimbacher, Bodo. Albert Ludwigs University of Freiburg; Alemania
Fil: Jäck, Hans-Martin. Universitat Erlangen-Nuremberg; Alemania
Fil: Voll, Reinhard E.. Albert Ludwigs University of Freiburg; Alemania
Fil: Hölzer, Martin. Robert Koch Institut; Alemania
Fil: Schneider, Pascal. Universite de Lausanne; Suiza
Fil: Eibel, Hermann. Albert Ludwigs University of Freiburg; Alemania - Materia
-
BAFF
BAFFR
BCR
CP: IMMUNOLOGY
HUMAN MEMORY B CELLS
PI3K SIGNALING - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/216824
Ver los metadatos del registro completo
id |
CONICETDig_f2fac7c3b8e5b6892519012ec32eaf86 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/216824 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptorsSevdali, EiriniBlock, VioletaLataretu, MarieLi, HuiyingSmulski, Cristian RobertoBriem, Jana SusannHeitz, YannicFischer, BeateRamirez, Neftali JoseGrimbacher, BodoJäck, Hans-MartinVoll, Reinhard E.Hölzer, MartinSchneider, PascalEibel, HermannBAFFBAFFRBCRCP: IMMUNOLOGYHUMAN MEMORY B CELLSPI3K SIGNALINGhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Binding of BAFF to BAFFR activates in mature B cells PI3K/AKT signaling regulating protein synthesis, metabolic fitness, and survival. In humans, naive and memory B cells express the same levels of BAFFR, but only memory B cells seem to survive without BAFF. Here, we show that BAFF activates PI3K/AKT only in naive B cells and changes the expression of genes regulating migration, proliferation, growth, and survival. BAFF-induced PI3K/AKT activation requires direct interactions between BAFFR and the B cell antigen receptor (BCR) components CD79A and CD79B and is enhanced by the AKT coactivator TCL1A. Compared to memory B cells, naive B cells express more surface BCRs, which interact better with BAFFR than IgG or IgA, thus allowing stronger responses to BAFF. As ablation of BAFFR in naive and memory B cells causes cell death independent of BAFF-induced signaling, BAFFR seems to act also as an intrinsic factor for B cell survival.Fil: Sevdali, Eirini. Albert Ludwigs University of Freiburg; AlemaniaFil: Block, Violeta. Albert Ludwigs University of Freiburg; AlemaniaFil: Lataretu, Marie. Universitat Jena; AlemaniaFil: Li, Huiying. Albert Ludwigs University of Freiburg; AlemaniaFil: Smulski, Cristian Roberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Briem, Jana Susann. Albert Ludwigs University of Freiburg; AlemaniaFil: Heitz, Yannic. Albert Ludwigs University of Freiburg; AlemaniaFil: Fischer, Beate. Albert Ludwigs University of Freiburg; AlemaniaFil: Ramirez, Neftali Jose. Albert Ludwigs University of Freiburg; AlemaniaFil: Grimbacher, Bodo. Albert Ludwigs University of Freiburg; AlemaniaFil: Jäck, Hans-Martin. Universitat Erlangen-Nuremberg; AlemaniaFil: Voll, Reinhard E.. Albert Ludwigs University of Freiburg; AlemaniaFil: Hölzer, Martin. Robert Koch Institut; AlemaniaFil: Schneider, Pascal. Universite de Lausanne; SuizaFil: Eibel, Hermann. Albert Ludwigs University of Freiburg; AlemaniaElsevier2022-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/216824Sevdali, Eirini; Block, Violeta; Lataretu, Marie; Li, Huiying; Smulski, Cristian Roberto; et al.; BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors; Elsevier; Cell Reports; 39; 13; 6-2022; 1-502211-1247CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.celrep.2022.111019info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:30Zoai:ri.conicet.gov.ar:11336/216824instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:36:31.222CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors |
title |
BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors |
spellingShingle |
BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors Sevdali, Eirini BAFF BAFFR BCR CP: IMMUNOLOGY HUMAN MEMORY B CELLS PI3K SIGNALING |
title_short |
BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors |
title_full |
BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors |
title_fullStr |
BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors |
title_full_unstemmed |
BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors |
title_sort |
BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors |
dc.creator.none.fl_str_mv |
Sevdali, Eirini Block, Violeta Lataretu, Marie Li, Huiying Smulski, Cristian Roberto Briem, Jana Susann Heitz, Yannic Fischer, Beate Ramirez, Neftali Jose Grimbacher, Bodo Jäck, Hans-Martin Voll, Reinhard E. Hölzer, Martin Schneider, Pascal Eibel, Hermann |
author |
Sevdali, Eirini |
author_facet |
Sevdali, Eirini Block, Violeta Lataretu, Marie Li, Huiying Smulski, Cristian Roberto Briem, Jana Susann Heitz, Yannic Fischer, Beate Ramirez, Neftali Jose Grimbacher, Bodo Jäck, Hans-Martin Voll, Reinhard E. Hölzer, Martin Schneider, Pascal Eibel, Hermann |
author_role |
author |
author2 |
Block, Violeta Lataretu, Marie Li, Huiying Smulski, Cristian Roberto Briem, Jana Susann Heitz, Yannic Fischer, Beate Ramirez, Neftali Jose Grimbacher, Bodo Jäck, Hans-Martin Voll, Reinhard E. Hölzer, Martin Schneider, Pascal Eibel, Hermann |
author2_role |
author author author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
BAFF BAFFR BCR CP: IMMUNOLOGY HUMAN MEMORY B CELLS PI3K SIGNALING |
topic |
BAFF BAFFR BCR CP: IMMUNOLOGY HUMAN MEMORY B CELLS PI3K SIGNALING |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.1 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
Binding of BAFF to BAFFR activates in mature B cells PI3K/AKT signaling regulating protein synthesis, metabolic fitness, and survival. In humans, naive and memory B cells express the same levels of BAFFR, but only memory B cells seem to survive without BAFF. Here, we show that BAFF activates PI3K/AKT only in naive B cells and changes the expression of genes regulating migration, proliferation, growth, and survival. BAFF-induced PI3K/AKT activation requires direct interactions between BAFFR and the B cell antigen receptor (BCR) components CD79A and CD79B and is enhanced by the AKT coactivator TCL1A. Compared to memory B cells, naive B cells express more surface BCRs, which interact better with BAFFR than IgG or IgA, thus allowing stronger responses to BAFF. As ablation of BAFFR in naive and memory B cells causes cell death independent of BAFF-induced signaling, BAFFR seems to act also as an intrinsic factor for B cell survival. Fil: Sevdali, Eirini. Albert Ludwigs University of Freiburg; Alemania Fil: Block, Violeta. Albert Ludwigs University of Freiburg; Alemania Fil: Lataretu, Marie. Universitat Jena; Alemania Fil: Li, Huiying. Albert Ludwigs University of Freiburg; Alemania Fil: Smulski, Cristian Roberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina Fil: Briem, Jana Susann. Albert Ludwigs University of Freiburg; Alemania Fil: Heitz, Yannic. Albert Ludwigs University of Freiburg; Alemania Fil: Fischer, Beate. Albert Ludwigs University of Freiburg; Alemania Fil: Ramirez, Neftali Jose. Albert Ludwigs University of Freiburg; Alemania Fil: Grimbacher, Bodo. Albert Ludwigs University of Freiburg; Alemania Fil: Jäck, Hans-Martin. Universitat Erlangen-Nuremberg; Alemania Fil: Voll, Reinhard E.. Albert Ludwigs University of Freiburg; Alemania Fil: Hölzer, Martin. Robert Koch Institut; Alemania Fil: Schneider, Pascal. Universite de Lausanne; Suiza Fil: Eibel, Hermann. Albert Ludwigs University of Freiburg; Alemania |
description |
Binding of BAFF to BAFFR activates in mature B cells PI3K/AKT signaling regulating protein synthesis, metabolic fitness, and survival. In humans, naive and memory B cells express the same levels of BAFFR, but only memory B cells seem to survive without BAFF. Here, we show that BAFF activates PI3K/AKT only in naive B cells and changes the expression of genes regulating migration, proliferation, growth, and survival. BAFF-induced PI3K/AKT activation requires direct interactions between BAFFR and the B cell antigen receptor (BCR) components CD79A and CD79B and is enhanced by the AKT coactivator TCL1A. Compared to memory B cells, naive B cells express more surface BCRs, which interact better with BAFFR than IgG or IgA, thus allowing stronger responses to BAFF. As ablation of BAFFR in naive and memory B cells causes cell death independent of BAFF-induced signaling, BAFFR seems to act also as an intrinsic factor for B cell survival. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/216824 Sevdali, Eirini; Block, Violeta; Lataretu, Marie; Li, Huiying; Smulski, Cristian Roberto; et al.; BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors; Elsevier; Cell Reports; 39; 13; 6-2022; 1-50 2211-1247 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/216824 |
identifier_str_mv |
Sevdali, Eirini; Block, Violeta; Lataretu, Marie; Li, Huiying; Smulski, Cristian Roberto; et al.; BAFFR activates PI3K/AKT signaling in human naive but not in switched memory B cells through direct interactions with B cell antigen receptors; Elsevier; Cell Reports; 39; 13; 6-2022; 1-50 2211-1247 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.celrep.2022.111019 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1844613145634537472 |
score |
13.070432 |