Mostrar el registro sencillo del ítem
dc.contributor.author
Tsvilovskyy, Volodymyr
dc.contributor.author
Solis Lopez, Alejandra
dc.contributor.author
Almering, Julia
dc.contributor.author
Richter, Christin
dc.contributor.author
Birnbaumer, Lutz
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Dietrich, Alexander
dc.contributor.author
Freichel, Marc
dc.date.available
2021-09-29T11:25:18Z
dc.date.issued
2020-04
dc.identifier.citation
Tsvilovskyy, Volodymyr; Solis Lopez, Alejandra; Almering, Julia; Richter, Christin; Birnbaumer, Lutz; et al.; Analysis of Mrgprb2 Receptor-Evoked Ca2+ Signaling in Bone Marrow Derived (BMMC) and Peritoneal (PMC) Mast Cells of TRPC-Deficient Mice; Frontiers Media; Frontiers in Immunology; 11; 4-2020; 1-15
dc.identifier.issn
1664-3224
dc.identifier.uri
http://hdl.handle.net/11336/141818
dc.description.abstract
Mast cells are a heterogeneous group of immune cells. The simplest and commonly accepted classification divides them in two groups according to their protease content. We have compared the action of diverse secretagogues on bone marrow derived (BMMC) and peritoneal (PMC) mast cells which represent classical models of mucosal and connective tissue type mast cells in mice. Whereas, antigen stimulation of the FcεRI receptors was similarly effective in triggering elevations of free intracellular Ca2+ concentration ([Ca2+]i) in both BMMC and PMC, robust [Ca2+]i rise following Endothelin-1 stimulation was observed only in a fraction of BMMC. Leukotriene C4 activating cysteinyl leukotriene type I receptors failed to evoke [Ca2+]i rise in either mast cell model. Stimulation of the recently identified target of many small-molecule drugs associated with systemic pseudo-allergic reactions, Mrgprb2, with compound 48/80, a mast cell activator with unknown receptor studied for many years, triggered Ca2+ oscillations in BMMC and robust [Ca2+]i rise in PMCs similarly to that evoked by FcεRI stimulation. [Ca2+]i rise in PMC could also be evoked by other Mrgprb2 agonists such as Tubocurarine, LL-37, and Substance P. The extent of [Ca2+]i rise correlated with mast cell degranulation. Expression analysis of TRPC channels as potential candidates mediating agonist evoked Ca2+ entry revealed the presence of transcripts of all members of the TRPC subfamily of TRP channels in PMCs. The amplitude and AUC of compound 48/80-evoked [Ca2+]i rise was reduced by ~20% in PMC from Trpc1/4/6−/− mice compared to Trpc1/4−/− littermatched control mice, whereas FcεRI-evoked [Ca2+]i rise was unaltered. Whole-cell patch clamp recordings showed that the reduction in compound 48/80-evoked [Ca2+]i rise in Trpc1/4/6−/− PMC was accompanied by a reduced amplitude of Compound 48/80-induced cation currents which exhibited typical features of TRPC currents. Together, this study demonstrates that PMC are an appropriate mast cell model to study mechanisms of Mrgprb2 receptor-mediated mast cell activation, and it reveals that TRPC channels contribute at least partially to Mrgprb2-mediated mast cellactivation but not following FcεRI stimulation. However, the channels conducting most of the Ca2+ entry in mast cells triggered by Mrgprb2 receptor stimulation remains to be identified.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Frontiers Media
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
CONNECTIVE TISSUE TYPE MAST CELLS
dc.subject
INTRACELLULAR CALCIUM
dc.subject
MAST CELLS DEGRANULATION
dc.subject
MRGPRB2 RECEPTOR
dc.subject
MUCOSAL TISSUE TYPE MAST CELLS
dc.subject
SECRETAGOGUES
dc.subject
TRPC CHANNELS
dc.subject.classification
Biología Celular, Microbiología
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
Ciencias Biológicas
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.title
Analysis of Mrgprb2 Receptor-Evoked Ca2+ Signaling in Bone Marrow Derived (BMMC) and Peritoneal (PMC) Mast Cells of TRPC-Deficient Mice
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-27T15:25:04Z
dc.identifier.eissn
1664-3224
dc.journal.volume
11
dc.journal.pagination
1-15
dc.journal.pais
Suiza
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.description.fil
Fil: Tsvilovskyy, Volodymyr. Ruprecht Karls Universitat Heidelberg; Alemania
dc.description.fil
Fil: Solis Lopez, Alejandra. Ruprecht Karls Universitat Heidelberg; Alemania
dc.description.fil
Fil: Almering, Julia. Ruprecht Karls Universitat Heidelberg; Alemania
dc.description.fil
Fil: Richter, Christin. Ruprecht Karls Universitat Heidelberg; Alemania
dc.description.fil
Fil: Birnbaumer, Lutz. Pontificia Universidad Católica Argentina "Santa María de los Buenos Aires". Instituto de Investigaciones Biomédicas. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas; Argentina
dc.description.fil
Fil: Dietrich, Alexander. Ruprecht Karls Universitat Heidelberg; Alemania
dc.description.fil
Fil: Freichel, Marc. Ruprecht Karls Universitat Heidelberg; Alemania
dc.journal.title
Frontiers in Immunology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fimmu.2020.00564/full
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3389/fimmu.2020.00564
Archivos asociados