Evidence map›Paper›PMID 30587971›Full record

ArticleInternational journal of nanomedicine2018

Olaparib nanoparticles potentiated radiosensitization effects on lung cancer.

Min Wu, Jing Liu, ChuanFei Hu, Dong Li, Juan Yang, ZhouXue Wu, LingLin Yang, Yue Chen, ShaoZhi Fu, JingBo Wu

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.6field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 43 citations in OpenAlex.

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  15. Mechanisms for Tuning Engineered Nanomaterials to Enhance Radiation Therapy of Cancer.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2020
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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 1 institution in 1 country.

Min WuDepartment of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China, shaozhifu513@163.com; wjb6147@163.com.
Jing LiuDepartment of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China, shaozhifu513@163.com; wjb6147@163.com.
ChuanFei HuDepartment of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China, shaozhifu513@163.com; wjb6147@163.com.
Dong LiDepartment of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China, shaozhifu513@163.com; wjb6147@163.com.
Juan YangDepartment of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China, shaozhifu513@163.com; wjb6147@163.com.
ZhouXue WuDepartment of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China, shaozhifu513@163.com; wjb6147@163.com.
LingLin YangDepartment of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China, shaozhifu513@163.com; wjb6147@163.com.
Yue ChenDepartment of Nuclear Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.
ShaoZhi FuDepartment of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China, shaozhifu513@163.com; wjb6147@163.com.
JingBo WuDepartment of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China, shaozhifu513@163.com; wjb6147@163.com.
Affiliated Hospital of Southwest Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPoly (ADP-ribose) polymerase (PARP) is a key enzyme in the repair process of DNA strand breaks (DSBs). Olaparib (Ola) is a PARP inhibitor that is involved in arresting PARP release from radiotherapy (RT)-induced damaged DNA to potentiate the effect of RT. Although the underlying mechanisms for the radiosensitization effects of Ola are well understood in vitro, the radiosensitization effects in vivo are still unclear. Moreover, poor water solubility and severe toxicity are two major impediments for the clinical success of Ola. MATERIALS AND

methodsHere, we developed olaparib nanoparticles (Ola-NPs) and investigated their radiosensitization mechanisms and toxicity using human non-small-cell lung cancer xenograft models in mice.

resultsThe prepared Ola-NPs showed a mean size of 31.96±1.54 nm and a lower polydispersity index of about 0.126±0.014. In addition, the sensitization enhancement ratio of Ola-NPs (3.81) was much higher than that of free Ola (1.66). The combination of Ola-NPs and RT (Ola-NPs + RT) significantly inhibited tumor growth and prolonged survival in mice. The mechanism of enhanced antitumor efficacy might be related to the inhibition of DSB repair and the promotion of cell apoptosis in vivo. No additional toxicity caused by Ola-NPs was observed.

conclusionThis study demonstrated the principle of using Ola-NPs as a potent radiosensitizer to improve the therapeutic effect of RT relative to free Ola (

Indexed as

A549 CellsAnimalsAntineoplastic AgentsApoptosisCell ProliferationDrug LiberationFemaleFluorodeoxyglucose F18HumansLung NeoplasmsMice, Inbred BALB CMice, NudeNanoparticlesPhthalazinesPiperazinesPoly(ADP-ribose) Polymerase InhibitorsAntineoplastic AgentsFluorodeoxyglucose F18olaparibPhthalazinesPiperazinesPoly(ADP-ribose) Polymerase InhibitorsRadiation-Sensitizing Agentslung cancernanoparticlesolaparibradiosensitization

Identifiers

PMID30587971
PMCPMC6294076
OpenAlexW2904602261

What OpenQuestion holds

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Registered trials

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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.