Evidence map›Paper›PMID 34823562›Full record

ArticleJournal of nanobiotechnology2021

Nanovesicles derived from bispecific CAR-T cells targeting the spike protein of SARS-CoV-2 for treating COVID-19.

Tianchuan Zhu, Yuchen Xiao, Xiaojun Meng, Lantian Tang, Bin Li, Zhaoyan Zhao, Qingqin Tan, Hong Shan, Lei Liu, Xi Huang

Open access · goldAbstract read
In one paragraph

Article in Journal of nanobiotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.8field-weighted citation impact, top 7% 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

18 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Article
  3. CAR-T therapy: Advances in respiratory diseases.Chinese medical journal pulmonary and critical care medicine · 2025
    Review
  4. Nanocarrier-based immunotherapy for viral diseases.International journal of pharmaceutics: X · 2025
    Review
  5. Article
  6. Article
  7. Review
  8. Review
  9. Antibody-dependent enhancement of coronaviruses.International journal of biological sciences · 2025
    Review
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  11. Article
  12. Article
  13. Review
  14. Article
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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

10 authors at 2 institutions in 1 country.

Tianchuan Zhu *Center for Infection and Immunity, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
Yuchen Xiao *Center for Infection and Immunity, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
Xiaojun Meng *Center for Infection and Immunity, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
Lantian TangCenter for Infection and Immunity, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
Bin LiCenter for Infection and Immunity, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
Zhaoyan ZhaoCenter for Infection and Immunity, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
Qingqin TanCenter for Infection and Immunity, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China.
Hong ShanGuangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China. shanhong@mail.sysu.edu.cn.
Lei LiuShenzhen Key Laboratory of Pathogen and Immunity, National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, Shenzhen, 518112, Guangdong, China. liulei3322@aliyun.com.
Xi HuangCenter for Infection and Immunity, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, Guangdong, China. huangxi6@mail.sysu.edu.cn.ORCID http://orcid.org/0000-0002-4829-8390
Sun Yat-sen University · CNShenzhen Third People’s Hospital · CN

Funding

Guangdong Scientific and Technological Research Project for COVID-19 containment 2020A111128022Guangdong Scientific and Technological Research Project for COVID-19 containment 2020B111112003Guangdong Scientific and Technological Research Special Fund for COVID-19 Containment 2020B111114001Guangzhou Science and Technology Planning Project 201604020006Guangzhou Science and Technology Planning Project 201704020226National Natural Science Foundation of China 82072062National Science and Technology Key Projects for Major Infectious Diseases 2017ZX10302301-002Support Scheme of Guangzhou for Leading Talents in Innovation and Entrepreneurship 2017004The Three Major Scientific Research Projects of Sun Yat-sen University 20200326236Zhuhai Scientific and technological Research Project for COVID-19 containment ZH22036302200029PWC
6 · The paper itself

Abstract

backgroundConsidering the threat of the COVID-19 pandemic, caused by SARS-CoV-2, there is an urgent need to develop effective treatments. At present, neutralizing antibodies and small-molecule drugs such as remdesivir, the most promising compound to treat this infection, have attracted considerable attention. However, some potential problems need to be concerned including viral resistance to antibody-mediated neutralization caused by selective pressure from a single antibody treatment, the unexpected antibody-dependent enhancement (ADE) effect, and the toxic effect of small-molecule drugs.

resultsHere, we constructed a type of programmed nanovesicle (NV) derived from bispecific CAR-T cells that express two single-chain fragment variables (scFv), named CR3022 and B38, to target SARS-CoV-2. Nanovesicles that express both CR3022 and B38 (CR3022/B38 NVs) have a stronger ability to neutralize Spike-pseudovirus infectivity than nanovesicles that express either CR3022 or B38 alone. Notably, the co-expression of CR3022 and B38, which target different epitopes of spike protein, could reduce the incidence of viral resistance. Moreover, the lack of Fc fragments on the surface of CR3022/B38 NVs could prevent ADE effects. Furthermore, the specific binding ability to SARS-CoV-2 spike protein and the drug loading capacity of CR3022/B38 NVs can facilitate targeted delivery of remdesiver to 293 T cells overexpressing spike protein. These results suggest that CR3022/B38 NVs have the potential ability to target antiviral drugs to the main site of viral infection, thereby enhancing the antiviral ability by inhibiting intracellular viral replication and reducing adverse drug reactions.

conclusionsIn summary, we demonstrate that nanovesicles derived from CAR-T cells targeting the spike protein of SARS-COV-2 have the ability to neutralize Spike-pseudotyped virus and target antiviral drugs. This novel therapeutic approach may help to solve the dilemma faced by neutralizing antibodies and small-molecule drugs in the treatment of COVID-19.

Indexed as

Antibodies, ViralAntiviral AgentsCOVID-19HumansModels, TheoreticalSpike Glycoprotein, CoronavirusAntibodies, ViralAntiviral AgentsSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2COVID-19nanovesiclesNeutralizing antibodyRemdesivirTargeted delivery

Identifiers

PMID34823562
PMCPMC8614633
OpenAlexW3217091120

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.