Evidence map›Paper›PMID 33046822›Full record

ArticleExperimental & molecular medicine2020

A novel PPARɣ ligand, PPZ023, overcomes radioresistance via ER stress and cell death in human non-small-cell lung cancer cells.

Tae Woo Kim, Da-Won Hong, Chang-Mo Kang, Sung Hee Hong

Open access · goldAbstract read
In one paragraph

Article in Experimental & molecular medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 22 citations in OpenAlex.

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  8. Unfolded protein response and angiogenesis in malignancies.Biochimica et biophysica acta. Reviews on cancer · 2023
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  15. Frontiers in pharmacology · 2021
    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

4 authors at 1 institution in 1 country.

Tae Woo KimDivision of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, Korea.
Da-Won HongDivision of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, Korea.
Chang-Mo KangDivision of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, Korea.
Sung Hee HongDivision of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, Korea. gobrian@kcch.re.kr.
Korea Institute of Radiological and Medical Sciences · KR

Funding

Korea Institute of Radiological and Medical Sciences (Korea Institute of Radiological & Medical Sciences) 50531-2019National Research Foundation of Korea (NRF) No.2017 R1D1A1B03033922
6 · The paper itself

Abstract

Peroxisome proliferator-activated receptor gamma (PPARɣ) agonists exert powerful anticancer effects by suppressing tumor growth. In this study, we developed PPZ023 (1-(2-(ethylthio)benzyl)-4-(2-methoxyphenyl)piperazine), a novel PPAR ligand candidate, and investigated the underlying signaling pathways in both non-small-cell lung cancer (NSCLC) and radio-resistant NSCLC cells. To identify whether PPZ023 has anticancer effects in NSCLC and radioresistant NSCLC cells, we performed WST-1, LDH, Western blot, and caspase-3 and -9 activity assays. Furthermore, we isolated exosomes from PPZ023-treated NSCLC cells and studied cell death signaling. PPZ023 reduces cell viability and increases LDH cytotoxicity and caspase-3 activity in NSCLC cells. PPZ023 induces cell death by generating reactive oxygen species (ROS) and triggering mitochondrial cytochrome c release. PPZ023 treatment causes cell death via the PERK-eIF2α-CHOP axis in both NSCLC cell lysates and exosomes, and PERK and CHOP knockdown significantly blocks ER stress-mediated apoptosis by reducing cleaved caspase-3. Interestingly, diphenyleneiodonium (DPI, a Nox inhibitor) inhibits PPZ023-induced cell death via ER stress, and PPARɣ knockdown inhibits PPZ023-induced ROS, ER stress, and cell death. Moreover, PPZ023, in combination with radiation, causes synergic cell death via exosomal ER stress in radioresistant NSCLC cells, indicating that PPZ023/radiation overcomes radioresistance. Taken together, our results suggest that PPZ023 is a powerful anticancer reagent for overcoming radioresistance.

Indexed as

Antineoplastic AgentsApoptosisCarcinoma, Non-Small-Cell LungCell DeathCell Line, TumorCell SurvivalEndoplasmic Reticulum StressHumansLigandsLung NeoplasmsModels, BiologicalPPAR gammaRadiation-Sensitizing AgentsReactive Oxygen SpeciesSignal TransductionAntineoplastic AgentsLigandsPPAR gammaRadiation-Sensitizing AgentsReactive Oxygen Species

Identifiers

PMID33046822
PMCPMC8080717
OpenAlexW3091842645

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.