Evidence map›Paper›PMID 33415100›Full record

ArticleFrontiers in bioengineering and biotechnology2020

Proteomic Reveals Reasons for Acquired Drug Resistance in Lung Cancer Derived Brain Metastasis Based on a Newly Established Multi-Organ Microfluidic Chip Model.

Mingxin Xu, Yingyan Wang, Wenzhe Duan, Shengkai Xia, Song Wei, Wenwen Liu, Qi Wang

Open access · goldAbstract read
In one paragraph

Article in Frontiers in bioengineering and biotechnology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.2field-weighted citation impact, top 10% 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

25 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
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  7. Mass Spectrometry-Based Applications of Spheroids in Cancer Biology.Annual review of analytical chemistry (Palo Alto, Calif.) · 2025
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  14. Experimental models for cancer brain metastasis.Cancer pathogenesis and therapy · 2024
    Review
  15. Article
  16. Review
  17. 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 2 institutions in 1 country.

Mingxin XuDepartment of Respiratory Medicine, The Second Hospital, Dalian Medical University, Dalian, China.
Yingyan WangLaboratory Center for Diagnostics, Dalian Medical University, Dalian, China.
Wenzhe DuanDepartment of Respiratory Medicine, The Second Hospital, Dalian Medical University, Dalian, China.
Shengkai XiaDepartment of Respiratory Medicine, The Second Hospital, Dalian Medical University, Dalian, China.
Song WeiDepartment of Respiratory Medicine, The Second Hospital, Dalian Medical University, Dalian, China.
Wenwen LiuCancer Translational Medicine Research Center, The Second Hospital, Dalian Medical University, Dalian, China.
Qi WangDepartment of Respiratory Medicine, The Second Hospital, Dalian Medical University, Dalian, China.
Dalian Medical University · CNSecond Affiliated Hospital of Dalian Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Anti-tumor drugs can effectively shrink the lesions of primary lung cancer; however, it has limited therapeutic effect on patients with brain metastasis (BM). A BM preclinical model based on a multi-organ microfluidic chip has been established proficiently in our previous work. In this study, the BM subpopulation (PC9-Br) derived from the parental PC9 cell line was isolated from the chip model and found to develop obvious resistance to antineoplastic drugs including chemotherapeutic agents (cisplatin, carboplatin, pemetrexed) and tyrosine kinase inhibitors (TKIs) which target epidermal growth factor receptor (EGFR); this suggested that the acquisition of drug-resistance by brain metastatic cells was attributable to the intrinsic changes in PC9-Br. Hence, we performed proteomic and revealed a greatly altered spectrum of BM protein expression compared with primary lung cancer cells. We identified the hyperactive glutathione (GSH) metabolism pathway with the overexpression of various GSH metabolism-related enzymes (GPX4, RRM2, GCLC, GPX1, GSTM4, GSTM1). Aldehyde dehydrogenases (ALDH1A1, ALDH3A1) were also found to be upregulated in BM. What's more, loss of EGFR and phosphorylated EGFR in PC9-Br gave reasons for the TKIs resistance. Collectively, our findings indicated potential mechanisms for the acquirement of drug resistance occurred in BM, providing new strategies to overcome therapeutic resistance in lung cancer BM.

Indexed as

brain metastasisdrug resistancelung cancermicrofluidic organ-on-a-chipproteomic

Identifiers

PMID33415100
PMCPMC7783320
OpenAlexW3118054473

What OpenQuestion holds

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LicenceCC BY
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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.