Cited by 54Immunotherapy and Immune ResponsesImmune Response and InflammationT-cell and B-cell Immunology

TLR-activated dendritic cells enhance the response of aged naive CD4 T cells via an IL-6-dependent mechanism

Open access
Jones, Stephen C, Brahmakshatriya, Vinayak, Huston, Gail, Dibble, John, Swain, Susan L·2010·The Journal of Immunology

Abstract

The most effective immunological adjuvants contain microbial products, such as TLR agonists, which bind to conserved pathogen recognition receptors. These activate dendritic cells (DCs) to become highly effective APCs. We assessed whether TLR ligand-treated DCs can enhance the otherwise defective response of aged naive CD4 T cells. In vivo administration of CpG, polyinosinic-polycytidylic acid, and Pam(3)CSK(4) in combination with Ag resulted in the increased expression of costimulatory molecules and MHC class II by DCs, increased serum levels of the inflammatory cytokines IL-6 and RANTES, and increased cognate CD4 T cell responses in young and aged mice. We show that, in vitro, preactivation of DCs by TLR ligands makes them more efficient APCs for aged naive CD4 T cells. After T-DC interaction, there are enhanced production of inflammatory cytokines, particularly IL-6, and greater expansion of the aged T cells, resulting from increased proliferation and greater effector survival with increased levels of Bcl-2. TLR preactivation of both bone marrow-derived and ex vivo DCs improved responses. IL-6 produced by the activated DCs during cognate T cell interaction was necessary for enhanced aged CD4 T cell expansion and survival. These studies suggest that some age-associated immune defects may be overcome by targeted activation of APCs by TLR ligands.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.4049/jimmunol.0901296

Cites

69 of 69 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Jones, S. C., Brahmakshatriya, V., Huston, G., Dibble, J., & Swain, S. L.
Affiliations
Trudeau Institute (US)
Venue
The Journal of Immunology
Published
2010-12-01
Volume
185
Issue
11
Pages
6783-6794
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2105541044
Cited by
54
References
69
Citations by year
2026: 2 · 2025: 3 · 2024: 1 · 2023: 3 · 2022: 2 · 2021: 6 · 2020: 3 · 2019: 5 · 2018: 6 · 2017: 3 · 2016: 5 · 2015: 2 · 2014: 6 · 2013: 3 · 2012: 3
FWCI
0.96
Type
journal article
Language
en
Open access
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (P01AG021600, R37AG025805, F32AG027641, AG021600, AG025805)
  • National Institute of Allergy and Infectious Diseases (P01AI046530)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
TLR agonists, dendritic cells, immunosenescence, interleukin-6, immunoadjuvant, CpG, polyinosinic-polycytidylic acid, Pam3CSK4, antigen-presenting cells, T cell proliferation, T cell survival, Bcl-2, RANTES, costimulatory molecules, MHC class II
MeSH terms
Amino Acid Sequence, Animals, Antigen-Presenting Cells, Cell Communication, Cell Survival, Cells, Cultured, Dendritic Cells, Ligands, Mice, Inbred BALB C, Mice, Inbred C57BL, Mice, Transgenic, Molecular Sequence Data, CD4-Positive T-Lymphocytes, Interleukin-6, Resting Phase, Cell Cycle, Cellular Senescence, Coculture Techniques, Cell Proliferation, Toll-Like Receptors, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review