Evidence map›Paper›PMID 23578555›Full record

ArticleBiomaterials2013

Combined modality doxorubicin-based chemotherapy and chitosan-mediated p53 gene therapy using double-walled microspheres for treatment of human hepatocellular carcinoma.

Qingxing Xu, Jiayu Leong, Qi Yi Chua, Yu Tse Chi, Pierce Kah-Hoe Chow, Daniel W Pack, Chi-Hwa Wang

Abstract read
In one paragraph

Article in Biomaterials, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

22 citing papers in PubMed, 89 citations in OpenAlex.

  1. Article
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  9. Use of graphene-based materials as carriers of bioactive agents.Asian journal of pharmaceutical sciences · 2021
    Review
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  13. Nanoparticle-Mediated Combination Therapy: Two-in-One Approach for Cancer.International journal of molecular sciences · 2018
    Review
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  15. 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

7 authors at 3 institutions in 3 countries.

Qingxing XuDepartment of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore.
Jiayu Leong
Qi Yi Chua
Yu Tse Chi
Pierce Kah-Hoe Chow
Daniel W Pack
Chi-Hwa Wang
National University of Singapore · SGUniversity of Illinois Urbana-Champaign · USSingapore General Hospital · SG

Funding

Effects of Uptake Mechanism on Polyplex Design CriteriaR01GM085222 · NIGMS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI PACK, DANIEL W · 2009 to 2012
$1.2M
Precision Microparticles for Controlled Protein DeliveryR01EB005181 · NIBIB · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI PACK, DANIEL W · 2006 to 2009
$1.0M
NIBIB NIH HHS 1R01EB005181NIBIB NIH HHS R01 EB005181NIGMS NIH HHS R01 GM085222
6 · The paper itself

Abstract

The therapeutic efficiency of combined chemotherapy and gene therapy on human hepatocellular carcinoma HepG2 cells was investigated using double-walled microspheres that consisted of a poly(D,L-lactic-co-glycolic acid) (PLGA) core surrounded by a poly(L-lactic acid) (PLLA) shell layer and fabricated via the precision particle fabrication (PPF) technique. Here, double-walled microspheres were used to deliver doxorubicin (Dox) and/or chitosan-DNA nanoparticles containing the gene encoding the p53 tumor suppressor protein (chi-p53), loaded in the core and shell phases, respectively. Preliminary studies on chi-DNA nanoparticles were performed to optimize gene transfer to HepG2 cells. The transfection efficiency of chi-DNA nanoparticles was optimal at an N/P ratio of 7. In comparison to the 25-kDa branched polyethylenimine (PEI), chitosan showed no inherent toxicity towards the cells. Next, the therapeutic efficiencies of Dox and/or chi-p53 in microsphere formulations were compared to free drug(s) and evaluated in terms of growth inhibition, and cellular expression of tumor suppressor p53 and apoptotic caspase 3 proteins. Overall, the combined Dox and chi-p53 treatment exhibited enhanced cytotoxicity as compared to either Dox or chi-p53 treatments alone. Moreover, the antiproliferative effect was more substantial when cells were treated with microspheres than those treated with free drugs. High p53 expression was maintained during a five-day period, and was largely due to the controlled and sustained release of the microspheres. Moreover, increased activation of caspase 3 was observed, and was likely to have been facilitated by high levels of p53 expression. Overall, double-walled microspheres present a promising dual anticancer delivery system for combined chemotherapy and gene therapy.

Indexed as

Genetic TherapyMicrospheresCarcinoma, HepatocellularCaspase 3Cell DeathCell SurvivalChitosanCombined Modality TherapyDNADoxorubicinFluorescent Antibody TechniqueHep G2 CellsHumansLiver NeoplasmsLuciferasesNanoparticlesCaspase 3ChitosanDNADoxorubicinLuciferasesTumor Suppressor Protein p53

Identifiers

PMID23578555
PMCPMC3646964
OpenAlexW2034735099

What OpenQuestion holds

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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.