ArticleJournal of cancer research and clinical oncology2023
C5α secreted by tumor mesenchymal stem-like cells mediates resistance to 5-aminolevulinic acid-based photodynamic therapy against glioblastoma tumorspheres.
Article in Journal of cancer research and clinical oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 8 citations in OpenAlex.
- A dual-wavelength blue laser platform for integrated diagnosis and therapy in glioblastoma: preclinical evidence.Lasers in medical science · 2026Article
- Article
- A transcriptional network underlying migratory cellular states and reduced 5-ALA-based photodynamic detectability in glioblastoma.Molecular and clinical oncology · 2026Article
- Restoring the glioblastoma tumor microenvironment by targeting C5a with the antagonist W54011.Scientific reports · 2025Article
- Tumor microenvironment-preserving gliosarcoma organoids as an in vitro preclinical platform: a comparative analysis with glioblastoma models.Journal of translational medicine · 2025Article
- Molecular Determinants for Photodynamic Therapy Resistance and Improved Photosensitizer Delivery in Glioma.International journal of molecular sciences · 2024Review
- Nanoparticles drug delivery for 5-aminolevulinic acid (5-ALA) in photodynamic therapy (PDT) for multiple cancer treatment: a critical review on biosynthesis, detection, and therapeutic applications.Journal of cancer research and clinical oncology · 2023Review
- Classification of IDH wild-type glioblastoma tumorspheres into low- and high-invasion groups based on their transcriptional program.British journal of cancer · 2023Article
- Combination chemotherapy potentiates 5-aminolevulic acid-mediated photodynamic therapy killing of patient-derived glioma stem-like cellsNeuro-oncology advancesArticle
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Authors and funding
11 authors at 5 institutions in 1 country.
Funding
Abstract
purposeAdvancements in photodynamic diagnosis (PDD) and photodynamic therapy (PDT) as a standard care in cancer therapy have been limited. This study is aimed to investigate the clinical availability of 5-aminolevulinic acid (5-ALA)-based PDD and PDT in glioblastoma (GBM) patient-derived tumorspheres (TSs) and mouse orthotopic xenograft model.
methodsPDT was performed using a 635 nm light-emitting diode (LED). Transcriptome profiles were obtained from microarray data. For knockdown of C5α, siRNA was transfected into tumor mesenchymal stem-like cells (tMSLCs). The invasiveness of TSs was quantified using collagen-based 3D invasion assays.
resultsTreatment with 1 mM 5 ALA induced distinct protoporphyrin IX (PpIX) fluorescence in GBM TSs, but not in non-tumor cells or tissues, including tMSLCs. These observations were negatively correlated with the expression levels of FECH, which catalyzes the conversion of accumulated PpIX to heme. Furthermore, the 5-ALA-treated GBM TSs were sensitive to PDT, thereby significantly decreasing cell viability and invasiveness. Notably, the effects of PDT were abolished by culturing TSs with tMSLC-conditioned media. Transcriptome analysis revealed diverse tMSLC-secreted chemokines, including C5α, and their correlations with the expression of stemness- or mesenchymal transition-associated genes. By adding or inhibiting C5α, we confirmed that acquired resistance to PDT was induced via tMSLC-secreted C5α.
conclusionsOur results show substantial therapeutic effects of 5-ALA-based PDT on GBM TSs, suggesting C5α as a key molecule responsible for PDT resistance. These findings could trigger PDT as a standard clinical modality for the treatment of GBM.
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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.