Evidence map›Paper›PMID 35930653›Full record

ArticleScience immunology2022

Size-dependent activation of CAR-T cells.

Qian Xiao, Xinyan Zhang, Liqun Tu, Jian Cao, Christian S Hinrichs, Xiaolei Su

Open access · greenAbstract read
In one paragraph

Article in Science immunology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
11.0field-weighted citation impact, top 1% 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

84 citing papers in PubMed, 115 citations in OpenAlex.

  1. Engineering CAR-T cells to remodel the mucin-rich cancer cell glycocalyx.bioRxiv : the preprint server for biology · 2026
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  7. Spatial Regulation of CAR Signaling Enables Logic-Gated Activity.bioRxiv : the preprint server for biology · 2026
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24 more citing papers are in PubMed but not listed here.

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 3 institutions in 1 country.

Qian XiaoDepartment of Cell Biology, Yale School of Medicine, New Haven, CT 06520, USA.ORCID 0000-0002-2103-4854
Xinyan ZhangDepartment of Cell Biology, Yale School of Medicine, New Haven, CT 06520, USA.
Liqun TuDuncan and Nancy MacMillan Cancer Immunology and Metabolism Center of Excellence, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA.
Jian CaoDuncan and Nancy MacMillan Cancer Immunology and Metabolism Center of Excellence, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA.ORCID 0000-0003-3424-6802
Christian S HinrichsDuncan and Nancy MacMillan Cancer Immunology and Metabolism Center of Excellence, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA.ORCID 0000-0001-5597-2841
Xiaolei SuDepartment of Cell Biology, Yale School of Medicine, New Haven, CT 06520, USA.ORCID 0000-0001-8696-7922
Rutgers, The State University of New Jersey · USYale Cancer Center · USYale University · US

Funding

TRANSCRIPTIONAL PROFILINGP30CA072720 · NCI · UNIV OF MED/DENT NJ-R W JOHNSON MED SCH · PI Tracie Saunders · 1997 to 2026
$94.5M
Yale SPORE in Skin CancerP50CA121974 · NCI · YALE UNIVERSITY · PI RUTH HALABAN · 2006 to 2026
$43.9M
Spatial Organization of Membrane SignalingR35GM138299 · NIGMS · YALE UNIVERSITY · PI SU, XIAOLEI · 2020 to 2024
$2.3M
NCI NIH HHS P30 CA072720NCI NIH HHS P50 CA121974NIGMS NIH HHS R35 GM138299
6 · The paper itself

Abstract

As the targets of chimeric antigen receptor (CAR)-T cells expand to a variety of cancers, autoimmune diseases, viral infections, and fibrosis, there is an increasing demand for identifying new antigens and designing new CARs that can be effectively activated. However, the rational selection of antigens and the design of CARs are limited by a lack of knowledge regarding the molecular mechanism by which CARs are activated by antigens. Here, we present data supporting a "size exclusion" model explaining how antigen signals are transmitted across the plasma membrane to activate the intracellular domains of CARs. In this model, antigen engagement with CAR results in a narrow intermembrane space that physically excludes CD45, a bulky phosphatase, out of the CAR zone, thus favoring CAR phosphorylation by kinases, which further triggers downstream pathways leading to T cell activation. Aligned with this model, increasing the size of CAR extracellular domains diminished CAR-T activation both in vitro and in a mouse lymphoma model; membrane-proximal epitopes activated CAR-Ts better than membrane-distal epitopes. Moreover, increasing the size of CD45 by antibody conjugation enhanced the activation of CARs that recognize membrane-distal epitopes. Consistently, CAR-Ts expressing CD45RABC, the larger isoform, were activated to a higher level than those expressing a smaller isoform CD45RO. Together, our work revealed that CAR-T activation depends on the size difference between the CAR-antigen pair and CD45; the size of CAR, antigen, and CD45 can thus be targets for tuning CAR-T activation.

Indexed as

Lymphocyte ActivationReceptors, Chimeric AntigenAnimalsEpitopesMiceT-LymphocytesEpitopesReceptors, Chimeric Antigen

Identifiers

PMID35930653
PMCPMC9678385
OpenAlexW4291021033

What OpenQuestion holds

Textmetadata
LicenceTDM
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.