Evidence map›Paper›PMID 14695768›Full record

ArticleWorld journal of gastroenterology2004

Superantigen-SEA gene modified tumor vaccine for hepatocellular carcinoma: an in vitro study.

Shao-Ying Lu, Yan-Fang Sui, Zeng-Shan Li, Jing Ye, Hai-Long Dong, Ping Qu, Xiu-Min Zhang, Wen-Yong Wang, Yu-Song Li

Abstract read
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Article in World journal of gastroenterology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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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

4 citing papers in PubMed.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

9 authors.

Shao-Ying LuDepartment of Pathology, Fourth Military Medical University, Xi'an 710032, China. suiyanf@fmmu.edu.cn
Yan-Fang Sui
Zeng-Shan Li
Jing Ye
Hai-Long Dong
Ping Qu
Xiu-Min Zhang
Wen-Yong Wang
Yu-Song Li

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo construct an eukaryotic superantigen gene expression vector containing the recombinant gene of SEA and CD80 molecule transmembrane region (CD80TM), and to express staphylococcus enterotoxin A (SEA) on the membrane of hepatocellular carcinoma (HCC) cell to form a superantigen gene modified tumor vaccine for HCC.

methodsSEA and linker-CD80TM gene were amplified through PCR from plasmid containing cDNA of SEA and CD80. Gene fragments were then subcloned into the multiple cloning sites of retroviral vector pLXSN. Recombinant plasmid was transferred into HepG2 cells mediated with lipofectamine, positive clones were selected in culture medium containing G418. RT-PCR and indirect immunofluorescence studies confirmed that SEA was expressed specifically on HCC cell membrane. INFgamma-ELISPOT study demonstrated that SEA protein was expressed on the membrane of HCC cells. Cytotoxicity of HepG2-SEA primed CTLs (SEA-T) was analyzed by (51)Cr release assay. T cells cultured with rhIL-2 (IL-2-T) were used as control.

resultsRestriction digestion and sequence analyses confirmed the correctness of length, position and orientation of inserted fusion genes. SEA was expressed on the surface of HepG2 cells, HepG2-SEA had strong stimulating effect on production of HepG2 specific CTL (P<0.001). SEA-T had enhanced cytotoxicity to HepG2 cells (P<0.05).

conclusionTumor cell membrane expressed superantigen can be used to reinforce the immune effect of tumor cell vaccine for HCC, which provides a new method of the enhanced active immunotherapy for HCC.

Indexed as

Carcinoma, HepatocellularLiver NeoplasmsB7-1 AntigenCancer VaccinesCell Line, TumorCell MembraneEnterotoxinsGene ExpressionHumansIn Vitro TechniquesSuperantigensTransfectionB7-1 AntigenCancer Vaccinesenterotoxin A, StaphylococcalEnterotoxinsSuperantigens

Identifiers

PMID14695768
PMCPMC4717078

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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.