Expansion and CD2/CD3/CD28 stimulation enhance Th2 cytokine secretion of human invariant NKT cells with retained anti-tumor cytotoxicity.
Antibodies
/ pharmacology
Apoptosis
/ drug effects
Blood Donors
CD2 Antigens
/ immunology
CD28 Antigens
/ immunology
CD3 Complex
/ immunology
Cell Proliferation
/ drug effects
Cell Transplantation
/ methods
Cells, Cultured
Cytokines
/ metabolism
Gene Expression Profiling
Humans
Immunotherapy
/ methods
Jurkat Cells
K562 Cells
Lymphocyte Activation
/ immunology
Natural Killer T-Cells
/ immunology
Th2 Cells
/ immunology
NKT cells
co-stimulation
cytotoxicity
iNKT cells
immunotherapy
leukemia
regulatory T cells
transplantation
Journal
Cytotherapy
ISSN: 1477-2566
Titre abrégé: Cytotherapy
Pays: England
ID NLM: 100895309
Informations de publication
Date de publication:
05 2020
05 2020
Historique:
received:
26
05
2019
revised:
14
01
2020
accepted:
22
01
2020
pubmed:
3
4
2020
medline:
28
10
2020
entrez:
3
4
2020
Statut:
ppublish
Résumé
Key obstacles in human iNKT cell translational research and immunotherapy include the lack of robust protocols for dependable expansion of human iNKT cells and the paucity of data on phenotypes in post-expanded cells. We delineate expansion methods using interleukin (IL)-2, IL-7 and allogeneic feeder cells and anti-CD2/CD3/CD28 stimulation by which to dependably augment Th2 polarization and direct cytotoxicity of human peripheral blood CD3 Gene and protein expression profiling demonstrated augmented Th2 cytokine secretion (IL-4, IL-5, IL-13) in expanded iNKT cells stimulated with anti-CD2/CD3/CD28 antibodies. Cytotoxic effector molecules including granzyme B were increased in expanded iNKT cells after CD2/CD3/CD28 stimulation. Direct cytotoxicity assays using unstimulated expanded iNKT cell effectors revealed α-galactosyl ceramide (α-GalCer)-dependent killing of the T-ALL cell line Jurkat. Moreover, CD2/CD3/CD28 stimulation of expanded iNKT cells augmented their (α-GalCer-independent) killing of Jurkat cells. Co-culture of expanded iNKT cells with stimulated responder cells confirmed contact-dependent inhibition of activated CD4 These data establish a robust protocol to expand and novel pathways to enhance Th2 cytokine secretion and direct cytotoxicity in human iNKT cells, findings with direct implications for autoimmunity, vaccine augmentation and anti-infective immunity, cancer immunotherapy and transplantation.
Sections du résumé
BACKGROUND AIMS
Key obstacles in human iNKT cell translational research and immunotherapy include the lack of robust protocols for dependable expansion of human iNKT cells and the paucity of data on phenotypes in post-expanded cells.
METHODS
We delineate expansion methods using interleukin (IL)-2, IL-7 and allogeneic feeder cells and anti-CD2/CD3/CD28 stimulation by which to dependably augment Th2 polarization and direct cytotoxicity of human peripheral blood CD3
RESULTS
Gene and protein expression profiling demonstrated augmented Th2 cytokine secretion (IL-4, IL-5, IL-13) in expanded iNKT cells stimulated with anti-CD2/CD3/CD28 antibodies. Cytotoxic effector molecules including granzyme B were increased in expanded iNKT cells after CD2/CD3/CD28 stimulation. Direct cytotoxicity assays using unstimulated expanded iNKT cell effectors revealed α-galactosyl ceramide (α-GalCer)-dependent killing of the T-ALL cell line Jurkat. Moreover, CD2/CD3/CD28 stimulation of expanded iNKT cells augmented their (α-GalCer-independent) killing of Jurkat cells. Co-culture of expanded iNKT cells with stimulated responder cells confirmed contact-dependent inhibition of activated CD4
DISCUSSION
These data establish a robust protocol to expand and novel pathways to enhance Th2 cytokine secretion and direct cytotoxicity in human iNKT cells, findings with direct implications for autoimmunity, vaccine augmentation and anti-infective immunity, cancer immunotherapy and transplantation.
Identifiants
pubmed: 32238299
pii: S1465-3249(20)30015-3
doi: 10.1016/j.jcyt.2020.01.011
pmc: PMC7666372
mid: NIHMS1569140
pii:
doi:
Substances chimiques
Antibodies
0
CD2 Antigens
0
CD28 Antigens
0
CD3 Complex
0
Cytokines
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
276-290Subventions
Organisme : NCI NIH HHS
ID : P30 CA021765
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL133462
Pays : United States
Organisme : NCI NIH HHS
ID : P30 CA240139
Pays : United States
Informations de copyright
Copyright © 2020 International Society for Cell and Gene Therapy. Published by Elsevier Inc. All rights reserved.
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