![](/images/graphics-bg.png)
Modulation of Dendritic Cell Apoptosis and CD8+ Cytotoxicity by Histamine: Role of Protein Kinase C
Joint Authors
Vermeulen, Mónica
Salamone, Gabriela
Alcain, Julieta
Podaza, Enrique
Gori, María Soledad
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-29
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Dendritic cells (DC) are able to present extracellular antigens associated with the molecules of the major histocompatibility complex class I.
In a previous work, we demonstrated that the histamine (HIS), acting through H1/H4 receptors, increases the cross-presentation of soluble ovalbumin by murine DC and can enhance the recruitment of specific CD8+ T lymphocytes during the development of chronic inflammatory responses.
Here, we studied in more depth the mechanisms underlying this enhancement.
We showed that the cytotoxicity of specific CD8+ lymphocytes is increased in HIS-treated DC and it is lost by inhibition of vacuolar-ATPase that prevents endosome acidification.
It is known that HIS acts through G protein-coupled receptors.
The H1/H4 receptors are associated with a Gq subunit, which involves PKC signaling, a pathway related to the apoptotic process.
Interestingly, we demonstrated for the first time that HIS prevents DC apoptosis induced by heat shock through the inhibition of caspase-3, a mechanism dependent on PKC activation, since it is reversed by its inhibition.
By contrast, cytolytic activity of T lymphocytes induced by HIS-stimulated DC was independent of PKC pathway.
American Psychological Association (APA)
Alcain, Julieta& Podaza, Enrique& Gori, María Soledad& Salamone, Gabriela& Vermeulen, Mónica. 2017. Modulation of Dendritic Cell Apoptosis and CD8+ Cytotoxicity by Histamine: Role of Protein Kinase C. Mediators of Inflammation،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1188822
Modern Language Association (MLA)
Alcain, Julieta…[et al.]. Modulation of Dendritic Cell Apoptosis and CD8+ Cytotoxicity by Histamine: Role of Protein Kinase C. Mediators of Inflammation No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1188822
American Medical Association (AMA)
Alcain, Julieta& Podaza, Enrique& Gori, María Soledad& Salamone, Gabriela& Vermeulen, Mónica. Modulation of Dendritic Cell Apoptosis and CD8+ Cytotoxicity by Histamine: Role of Protein Kinase C. Mediators of Inflammation. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1188822
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1188822