Evidence map›Paper›PMID 39366753›Full record

ArticleJournal for immunotherapy of cancer2024

Antigen-independent activation is critical for the durable antitumor effect of GUCY2C-targeted CAR-T cells.

Changsong Qi, Dongqun Liu, Chang Liu, Xiaofei Wei, Mingyang Ma, Xinan Lu, Min Tao, Cheng Zhang, Xicheng Wang, Ting He and 4 more

Abstract read
In one paragraph

Article in Journal for immunotherapy of cancer, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

  1. Review
  2. Guanylyl Cyclase 2C-Targeted Chimeric Antigen Receptor T-Cell Therapy in Patients With Metastatic Colorectal Cancer.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2026
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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

14 authors.

Changsong Qi *State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Department of Early Drug Development Centre, Peking University Cancer Hospital, Beijing, China shenlin@bjmu.edu.cn dingyanping@imunopharm.com changsongqi@bjmu.edu.cn.ORCID http://orcid.org/0000-0001-9157-3768
Dongqun Liu *Beijing Imunopharm Technology Co Ltd, Beijing, China.
Chang Liu *Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Early Drug Development Centre, Peking University Cancer Hospital, Beijing, China.
Xiaofei WeiBeijing Imunopharm Technology Co Ltd, Beijing, China.
Mingyang MaKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital, Beijing, China.
Xinan LuBeijing Imunopharm Technology Co Ltd, Beijing, China.
Min TaoKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital, Beijing, China.
Cheng ZhangState Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Department of Gastrointestinal Oncology, Peking University Cancer Hospital, Beijing, China.
Xicheng WangKey Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital, Beijing, China.
Ting HeBeijing Imunopharm Technology Co Ltd, Beijing, China.
Jian LiState Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Department of Gastrointestinal Oncology, Peking University Cancer Hospital, Beijing, China.
Fei DaiBeijing Imunopharm Technology Co Ltd, Beijing, China.
Yanping DingBeijing Imunopharm Technology Co Ltd, Beijing, China shenlin@bjmu.edu.cn dingyanping@imunopharm.com changsongqi@bjmu.edu.cn.
Lin ShenState Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Department of Gastrointestinal Oncology, Peking University Cancer Hospital, Beijing, China shenlin@bjmu.edu.cn dingyanping@imunopharm.com changsongqi@bjmu.edu.cn.ORCID http://orcid.org/0000-0003-1134-2922

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChimeric antigen receptor (CAR)-T cells face many obstacles in solid tumor therapy, including heterogeneous antigen expression and inefficient T cell persistence. Guanylyl cyclase C (GUCY2C) has been identified as a suitable tumor antigen for targeted therapy due to its intestinal-restricted expression pattern in normal tissues and steady overexpression in gastrointestinal tumors, especially colorectal cancer. An antigen-sensitive and long-lasting CAR-T cell targeting GUCY2C was investigated in this study.

methodsUsing constructed tumor cell lines with various GUCY2C expression densities, we screened out an antigen-sensitive single chain variable fragment (scFv) that enabled CAR-T cells to efficiently eradicate the GUCY2C lowly expressed tumor cells. CAR-T cells with different compositions of the hinge, transmembrane and costimulatory domains were also constructed for selection of the long-lasting CAR-T format with durable antitumor efficacy in vitro and in tumor-bearing mice. The underlying mechanism was further investigated based on mutation of the hinge and transmembrane domains.

resultsWe found that the composition of the antigen-sensitive scFv, CD8α hinge, CD8α transmembrane, and CD28 costimulatory domains boosted CAR-T cells to rapidly kill tumors, maintain high expansion capacity, and long-term efficacy in various colorectal cancer models. The durable antitumor function was attributed to the optimal CAR tonic signaling that conferred CAR-T cells with autonomous activation, proliferation, survival and cytokine release in the absence of antigen stimulation. The tonic signaling was associated with the length and the cysteine residues in the CD8α hinge and transmembrane domains.

conclusionsThis study demonstrated a potent GUCY2C-targeted CAR-T cell for gastrointestinal tumor therapy and highlights the importance of adequate tonic signaling for effective CAR-T cell therapy against solid tumors.

Indexed as

Immunotherapy, AdoptiveReceptors, Chimeric AntigenReceptors, EnterotoxinAnimalsAntigens, NeoplasmCell Line, TumorFemaleHumansMiceReceptors, Guanylate Cyclase-CoupledT-LymphocytesXenograft Model Antitumor AssaysAntigens, NeoplasmGUCY2C protein, humanReceptors, Chimeric AntigenReceptors, EnterotoxinReceptors, Guanylate Cyclase-CoupledAdoptive cell therapy - ACTChimeric antigen receptor - CARColorectal Cancer

Identifiers

PMID39366753
PMCPMC11459315

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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.