Evidence map›Paper›PMID 12045240›Full record

ArticleThe Journal of experimental medicine2002

Involvement of the TCR Cbeta FG loop in thymic selection and T cell function.

Tetsuro Sasada, Maki Touma, Hsiu-Ching Chang, Linda K Clayton, Jia-huai Wang, Ellis L Reinherz

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.6field-weighted citation impact, top 36% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 43 citations in OpenAlex.

  1. Review
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  9. Structural understanding of T cell receptor triggering.Cellular & molecular immunology · 2020
    Review
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  14. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Tetsuro SasadaLaboratory of Immunobiology, Dana-Farber Cancer Institute, 44 Binney Street, Boston, MA 02115.
Maki Touma
Hsiu-Ching Chang
Linda K Clayton
Jia-huai Wang
Ellis L Reinherz
Dana-Farber Cancer Institute · USHarvard University · US

Funding

T CELL ANTIGEN RECOGNITIONR37AI019807 · NIAID · DANA-FARBER CANCER INSTITUTE · PI REINHERZ, ELLIS L · 1999 to 2008
$4.4M
T Cell Antigen RecognitionR01AI019807 · NIAID · DANA-FARBER CANCER INSTITUTE · PI REINHERZ, ELLIS L · 1985 to 2010
$1.3M
T Cell Antigen RecognitionR56AI019807 · NIAID · DANA-FARBER CANCER INST · PI REINHERZ, ELLIS L · 2012 to 2012
$430k
BASIS OF TCR RECOGNITION OF PEPTIDE/MHC COMPLEXESR01AI039098 · NIAID · DANA-FARBER CANCER INSTITUTE · PI CHANG, HSIU-CHING · 1996 to 1999
–
NIAID NIH HHS AI 19807NIAID NIH HHS AI 39098NIAID NIH HHS R01 AI019807NIAID NIH HHS R37 AI019807NIAID NIH HHS R56 AI019807NIGMS NIH HHS GM 56008
6 · The paper itself

Abstract

The asymmetric disposition of T cell receptor (TCR) Cbeta and Calpha ectodomains creates a cavity with a side-wall formed by the rigid Cbeta FG loop. To investigate the significance of this conserved structure, we generated loop deletion (betaDeltaFG) and betawt transgenic (tg) mice using the TCR beta subunit of the N15 CTL. N15betawt and N15betaDeltaFG H-2(b) animals have comparable numbers of thymocytes in S phase and manifest developmental progression through the CD4(-)CD8(-) double-negative (DN) compartment. N15betaDeltaFG facilitates transition from DN to CD4(+)8(+) double-positive (DP) thymocytes in recombinase activating gene (RAG)-2(-/-) mice, showing that pre-TCR function remains. N15betaDeltaFG animals possess approximately twofold more CD8(+) single-positive (SP) thymocytes and lymph node T cells, consistent with enhanced positive selection. As an altered Valpha repertoire observed in N15betaDeltaFG mice may confound the deletion's effect, we crossed N15alphabeta TCR tg RAG-2(-/-) with N15betaDeltaFG tg RAG-2(-/-) H-2(b) mice to generate N15alphabeta RAG-2(-/-) and N15alphabeta.betaDeltaFG RAG-2(-/-) littermates. N15alphabeta.betaDeltaFG RAG-2(-/-) mice show an 8-10-fold increase in DP thymocytes due to reduced negative selection, as evidenced by diminished constitutive and cognate peptide-induced apoptosis. Compared with N15alphabeta, N15alphabeta.betaDeltaFG T cells respond poorly to cognate antigens and weak agonists. Thus, the Cbeta FG loop facilitates negative selection of thymocytes and activation of T cells.

Indexed as

Amino Acid SequenceAnimalsApoptosisCattleCell DivisionCell LineageCytokinesDogsFlow CytometryHumansInterferon-gammaLymph NodesMiceMice, TransgenicModels, MolecularMolecular Sequence DataCytokinesInterferon-gammaReceptors, Antigen, T-Cell, alpha-beta

Identifiers

PMID12045240
PMCPMC2193539
OpenAlexW2164537558

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.