Evidence map›Paper›PMID 35267171›Full record

ArticleNeurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics2022

Regorafenib Reverses Temozolomide-Induced CXCL12/CXCR4 Signaling and Triggers Apoptosis Mechanism in Glioblastoma.

I-Tsang Chiang, Yu-Chang Liu, Hua-Shan Liu, Ahmed Atef Ahmed Ali, Szu-Yi Chou, Tsung-I Hsu, Fei-Ting Hsu

Open access · bronzeAbstract read
In one paragraph

Article in Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Kinase-Targeted Therapies for Glioblastoma.International journal of molecular sciences · 2025
    Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Small Molecule Tyrosine Kinase Inhibitors (TKIs) for Glioblastoma Treatment.International journal of molecular sciences · 2024
    Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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 4 institutions in 1 country.

I-Tsang Chiang *Department of Radiation Oncology, Chang Bing Show Chwan Memorial Hospital, Changhua, 505, Taiwan.
Yu-Chang Liu *Department of Radiation Oncology, Chang Bing Show Chwan Memorial Hospital, Changhua, 505, Taiwan.
Hua-Shan LiuSchool of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 110, Taiwan.
Ahmed Atef Ahmed AliTMU Neuroscience Research Center - NeuroImage, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan.
Szu-Yi ChouGraduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 110, Taiwan.
Tsung-I HsuPh.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institute, Taipei, 110, Taiwan.
Fei-Ting HsuDepartment of Biological Science and Technology, China Medical University, Taichung, 404, Taiwan. sakiro920@gmail.com.ORCID 0000-0002-2153-340X
Chang Bing Show Chwan Memorial Hospital · TWNational Health Research Institutes · TWTaipei Medical University · TWChina Medical University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Temozolomide (TMZ) monotherapy is known to be insufficient for resistant/relapsed glioblastoma (GBM), thus seeking a sensitization agent for TMZ is necessary. It was found that regorafenib may improve the overall survival of relapsed GBM patients. We aimed to discover whether regorafenib can enhance the anti-GBM effects of TMZ, and elucidate underlying mechanism. Our analysis of The Cancer Genome Atlas database revealed that the increased expression of CXCR4 is linked to poor survival of GBM patients. Additionally, TMZ treatment may trigger CXCR4/CXCL12 axis of GBM. We used two GBM cell lines, two primary GBM cells, and animal model to identify underlying mechanism and treatment efficacy of regorafenib combined with TMZ by cytotoxicity, apoptosis, reporter gene and invasion/migration assays, chemokine array, Western blotting, MRI, microarray, and immunohistochemistry. We observed that the chemokine CXCL-12 and its receptor CXCR4 regulate the resistance to TMZ, whereas the inhibition of CXCL-12/CXCR4 signaling sensitizes GBM cells to TMZ. The TMZ-induced CXCL-12/CXCR4 signaling, phosphor-extracellular signal-regulated kinases 1 and 2 (ERK1/2) and nuclear factor kappa light chain enhancer of activated B cells (NF-κB), and NF-κB-related proteins can effectively diminish when combining with regorafenib. Regorafenib significantly enhanced the TMZ-induced extrinsic/intrinsic apoptotic pathways, and facilitated the suppression of invasion and migration potential in GBM. Orthotopic tumor experiments demonstrated tumor size reduction and prolonged survival in combination group even with half-dose of TMZ. Our findings provide promising evidence that regorafenib may sensitize GBM to TMZ treatment through inhibition of the CXCL12/CXCR4/ERK/NF-κB signaling.

Indexed as

Brain NeoplasmsGlioblastomaPhenylurea CompoundsPyridinesAnimalsApoptosisCell Line, TumorChemokine CXCL12HumansNF-kappa BReceptors, CXCR4TemozolomideChemokine CXCL12CXCL12 protein, humanCXCR4 protein, humanNF-kappa BPhenylurea CompoundsPyridinesReceptors, CXCR4regorafenibTemozolomideCXCR4/CXCL12GlioblastomaNF-κBRegorafenibTemozolomide

Identifiers

PMID35267171
PMCPMC9226247
OpenAlexW4220753664

What OpenQuestion holds

Textmetadata
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.