Evidence map›Paper›PMID 38906916›Full record

ArticleScientific reports2024

Temozolomide promotes matrix metalloproteinase 9 expression through p38 MAPK and JNK pathways in glioblastoma cells.

Hien Duong Thanh, Sueun Lee, Thuy Thi Nguyen, Thang Nguyen Huu, Eun-Jung Ahn, Sang-Hee Cho, Min Soo Kim, Kyung-Sub Moon, Chaeyong Jung

Abstract read
In one paragraph

Article in Scientific reports, 2024. 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
–field-weighted citation impact
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.

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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

9 authors.

Hien Duong ThanhDepartment of Anatomy, Chonnam National University Medical School, Gwangju, 61469, Korea.
Sueun LeeDepartment of Anatomy, Chonnam National University Medical School, Gwangju, 61469, Korea.
Thuy Thi NguyenDepartment of Anatomy, Chonnam National University Medical School, Gwangju, 61469, Korea.
Thang Nguyen HuuDepartment of Biochemistry, Chonnam National University Medical School, Gwangju, 61469, Korea.
Eun-Jung AhnDepartment of Neurosurgery, Chonnam National University Hwasun Hospital and Medical School, Hwasun, 58128, Jeollanam-Do, Korea.
Sang-Hee ChoDepartment of Hemato-Oncology, Chonnam National University Medical School, Gwangju, 61469, Korea.
Min Soo KimDepartment of Statistics, College of Natural Sciences, Chonnam National University, Gwangju, 61186, Korea.
Kyung-Sub MoonDepartment of Neurosurgery, Chonnam National University Hwasun Hospital and Medical School, Hwasun, 58128, Jeollanam-Do, Korea.
Chaeyong JungDepartment of Anatomy, Chonnam National University Medical School, Gwangju, 61469, Korea. chjung@jnu.ac.kr.

Funding

National Research Foundation of Korea 2022R1A2C1003206
6 · The paper itself

Abstract

Glioblastoma (GBM) is a highly aggressive and deadly brain cancer. Temozolomide (TMZ) is the standard chemotherapeutic agent for GBM, but the majority of patients experience recurrence and invasion of tumor cells. We investigated whether TMZ treatment of GBM cells regulates matrix metalloproteinases (MMPs), which have the main function to promote tumor cell invasion. TMZ effectively killed GL261, U343, and U87MG cells at a concentration of 500 µM, and surviving cells upregulated MMP9 expression and its activity but not those of MMP2. TMZ also elevated levels of MMP9 mRNA and MMP9 promoter activity. Subcutaneous graft tumors survived from TMZ treatment also exhibited increased expression of MMP9 and enhanced gelatinolytic activity. TMZ-mediated MMP9 upregulation was specifically mediated through the phosphorylation of p38 and JNK. This then stimulates AP-1 activity through the upregulation of c-Fos and c-Jun. Inhibition of the p38, JNK, or both pathways counteracted the TMZ-induced upregulation of MMP9 and AP-1. This study proposes a potential adverse effect of TMZ treatment for GBM: upregulation of MMP9 expression potentially associated with increased invasion and poor prognosis. This study also provides valuable insights into the molecular mechanisms by which TMZ treatment leads to increased MMP9 expression in GBM cells.

Indexed as

Gene Expression Regulation, NeoplasticGlioblastomaMatrix Metalloproteinase 9p38 Mitogen-Activated Protein KinasesTemozolomideAnimalsAntineoplastic Agents, AlkylatingBrain NeoplasmsCell Line, TumorHumansMAP Kinase Signaling SystemMiceTranscription Factor AP-1Up-RegulationAntineoplastic Agents, AlkylatingMatrix Metalloproteinase 9MMP9 protein, humanp38 Mitogen-Activated Protein KinasesTemozolomideTranscription Factor AP-1

Identifiers

PMID38906916
PMCPMC11192740

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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.