The role of individual protein kinase C isoforms in mouse mast cell function and their targeting by the immunomodulatory parasitic worm product, ES-62

Kara S. Bell, Lamyaa Al-Riyami, Felicity E. Lumb, Graham J. Britton, Alastair W. Poole, Chris M. Williams, Ursula Braun, Michael Leitges, Margaret M. Harnett, William Harnett

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

ES-62, a glycoprotein secreted by the filarial nematode Acanthocheilonema viteae, has been shown to modulate the immune system through subversion of signal transduction pathways operating in various immune system cells. With respect to human bone marrow-derived mast cells (BMMCs), ES-62 was previously shown to inhibit FcεRI-mediated mast cell functional responses such as degranulation and pro-inflammatory cytokine release through a mechanism involving the degradation of PKC-α. At the same time, it was noted that the worm product was able to degrade certain other PKC isoforms but the significance of this was uncertain. In this study, we have employed PKC isoform KO mice to investigate the role of PKC-α, -β -ε, and -θ in mouse BMMC in order to establish their involvement in mast cell-mediated responses and also, if their absence impacts on ES-62’s activity. The data obtained support that in response to antigen cross-linking of IgE bound to FcεRI, pro-inflammatory cytokine release is controlled in part by a partnership between one conventional and one novel isoform with PKC-α and -θ acting as positive regulators of IL-6 and TNF-α production, while PKC-β and ε act as negative regulators of such cytokines. Furthermore, ES-62 appears to target certain other PKC isoforms in addition to PKC-α to inhibit cytokine release and this may enable it to more efficiently inhibit mast cell responses.
LanguageEnglish
Pages31-40
Number of pages10
JournalImmunology Letters
Volume168
Issue number1
Early online date3 Sep 2015
DOIs
Publication statusPublished - Nov 2015

Fingerprint

Helminths
Mast Cells
Protein Kinase C
Protein Isoforms
Protein Kinase C beta
Cytokines
Immune System
Acanthocheilonema
Bone Marrow
Protein Kinase C-epsilon
Immunoglobulin E
Interleukin-6
Signal Transduction
Glycoproteins
Tumor Necrosis Factor-alpha
Antigens

Keywords

  • ES-62
  • signal transduction
  • immunomodulation
  • PKC
  • mast cell

Cite this

Bell, Kara S. ; Al-Riyami, Lamyaa ; Lumb, Felicity E. ; Britton, Graham J. ; Poole, Alastair W. ; Williams, Chris M. ; Braun, Ursula ; Leitges, Michael ; Harnett, Margaret M. ; Harnett, William. / The role of individual protein kinase C isoforms in mouse mast cell function and their targeting by the immunomodulatory parasitic worm product, ES-62. In: Immunology Letters. 2015 ; Vol. 168, No. 1. pp. 31-40.
@article{508f2d0d82154eb1abc09ad60381d46e,
title = "The role of individual protein kinase C isoforms in mouse mast cell function and their targeting by the immunomodulatory parasitic worm product, ES-62",
abstract = "ES-62, a glycoprotein secreted by the filarial nematode Acanthocheilonema viteae, has been shown to modulate the immune system through subversion of signal transduction pathways operating in various immune system cells. With respect to human bone marrow-derived mast cells (BMMCs), ES-62 was previously shown to inhibit FcεRI-mediated mast cell functional responses such as degranulation and pro-inflammatory cytokine release through a mechanism involving the degradation of PKC-α. At the same time, it was noted that the worm product was able to degrade certain other PKC isoforms but the significance of this was uncertain. In this study, we have employed PKC isoform KO mice to investigate the role of PKC-α, -β -ε, and -θ in mouse BMMC in order to establish their involvement in mast cell-mediated responses and also, if their absence impacts on ES-62’s activity. The data obtained support that in response to antigen cross-linking of IgE bound to FcεRI, pro-inflammatory cytokine release is controlled in part by a partnership between one conventional and one novel isoform with PKC-α and -θ acting as positive regulators of IL-6 and TNF-α production, while PKC-β and ε act as negative regulators of such cytokines. Furthermore, ES-62 appears to target certain other PKC isoforms in addition to PKC-α to inhibit cytokine release and this may enable it to more efficiently inhibit mast cell responses.",
keywords = "ES-62, signal transduction, immunomodulation, PKC, mast cell",
author = "Bell, {Kara S.} and Lamyaa Al-Riyami and Lumb, {Felicity E.} and Britton, {Graham J.} and Poole, {Alastair W.} and Williams, {Chris M.} and Ursula Braun and Michael Leitges and Harnett, {Margaret M.} and William Harnett",
year = "2015",
month = "11",
doi = "10.1016/j.imlet.2015.09.001",
language = "English",
volume = "168",
pages = "31--40",
journal = "Immunology Letters",
issn = "0165-2478",
number = "1",

}

The role of individual protein kinase C isoforms in mouse mast cell function and their targeting by the immunomodulatory parasitic worm product, ES-62. / Bell, Kara S.; Al-Riyami, Lamyaa; Lumb, Felicity E.; Britton, Graham J.; Poole, Alastair W.; Williams, Chris M.; Braun, Ursula; Leitges, Michael; Harnett, Margaret M.; Harnett, William.

In: Immunology Letters, Vol. 168, No. 1, 11.2015, p. 31-40.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The role of individual protein kinase C isoforms in mouse mast cell function and their targeting by the immunomodulatory parasitic worm product, ES-62

AU - Bell, Kara S.

AU - Al-Riyami, Lamyaa

AU - Lumb, Felicity E.

AU - Britton, Graham J.

AU - Poole, Alastair W.

AU - Williams, Chris M.

AU - Braun, Ursula

AU - Leitges, Michael

AU - Harnett, Margaret M.

AU - Harnett, William

PY - 2015/11

Y1 - 2015/11

N2 - ES-62, a glycoprotein secreted by the filarial nematode Acanthocheilonema viteae, has been shown to modulate the immune system through subversion of signal transduction pathways operating in various immune system cells. With respect to human bone marrow-derived mast cells (BMMCs), ES-62 was previously shown to inhibit FcεRI-mediated mast cell functional responses such as degranulation and pro-inflammatory cytokine release through a mechanism involving the degradation of PKC-α. At the same time, it was noted that the worm product was able to degrade certain other PKC isoforms but the significance of this was uncertain. In this study, we have employed PKC isoform KO mice to investigate the role of PKC-α, -β -ε, and -θ in mouse BMMC in order to establish their involvement in mast cell-mediated responses and also, if their absence impacts on ES-62’s activity. The data obtained support that in response to antigen cross-linking of IgE bound to FcεRI, pro-inflammatory cytokine release is controlled in part by a partnership between one conventional and one novel isoform with PKC-α and -θ acting as positive regulators of IL-6 and TNF-α production, while PKC-β and ε act as negative regulators of such cytokines. Furthermore, ES-62 appears to target certain other PKC isoforms in addition to PKC-α to inhibit cytokine release and this may enable it to more efficiently inhibit mast cell responses.

AB - ES-62, a glycoprotein secreted by the filarial nematode Acanthocheilonema viteae, has been shown to modulate the immune system through subversion of signal transduction pathways operating in various immune system cells. With respect to human bone marrow-derived mast cells (BMMCs), ES-62 was previously shown to inhibit FcεRI-mediated mast cell functional responses such as degranulation and pro-inflammatory cytokine release through a mechanism involving the degradation of PKC-α. At the same time, it was noted that the worm product was able to degrade certain other PKC isoforms but the significance of this was uncertain. In this study, we have employed PKC isoform KO mice to investigate the role of PKC-α, -β -ε, and -θ in mouse BMMC in order to establish their involvement in mast cell-mediated responses and also, if their absence impacts on ES-62’s activity. The data obtained support that in response to antigen cross-linking of IgE bound to FcεRI, pro-inflammatory cytokine release is controlled in part by a partnership between one conventional and one novel isoform with PKC-α and -θ acting as positive regulators of IL-6 and TNF-α production, while PKC-β and ε act as negative regulators of such cytokines. Furthermore, ES-62 appears to target certain other PKC isoforms in addition to PKC-α to inhibit cytokine release and this may enable it to more efficiently inhibit mast cell responses.

KW - ES-62

KW - signal transduction

KW - immunomodulation

KW - PKC

KW - mast cell

UR - http://www.sciencedirect.com/science/article/pii/S0165247815300250

U2 - 10.1016/j.imlet.2015.09.001

DO - 10.1016/j.imlet.2015.09.001

M3 - Article

VL - 168

SP - 31

EP - 40

JO - Immunology Letters

T2 - Immunology Letters

JF - Immunology Letters

SN - 0165-2478

IS - 1

ER -