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Hemin Promotes Higher Effectiveness of Aminolevulinic-Photodynamic Therapy (ALA-PDT) in A549 Lung Cancer Cell Line by Interrupting ABCG2 Expression

Overview
Journal Med Sci (Basel)
Specialty General Medicine
Date 2024 Nov 25
PMID 39584916
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Abstract

Background/objectives: Due to concerns about drug resistance and side effects, the discovery of improved drugs for lung cancer has attracted studies to find an effective and safe treatment. Aminolevulinic acid-mediated photodynamic therapy (ALA-PDT) is a cancer treatment with minimal side effects. However, ALA-PDT effectiveness can be hindered by ABCG2 and ABCB1 transporters impeding PpIX accumulation. Combining ALA with other substances can enhance PpIX accumulation. Hemin is a potential substance due to its antitumor properties and may be involved in regulating the ABCG2 and ABCB1 expressions.

Methods: The objective of this report is to analyze the effects of administering a combination of hemin and ALA after 48 h on A549 lung cancer cells by quantifying cell viability, intracellular PpIX, and ROS accumulation, completed by ABCG2 and ABCB1 expressions.

Results: Our data indicate that the combination of hemin and ALA followed by photoirradiation decreased the viability of A549 cells, which was due to increased intracellular PpIX and ROS. The expression of ABCG2 mRNA was significantly decreased after ALA-hemin treatment, while the ABCB1 mRNA expression increased. This result might suggest that ABCG2 plays a greater role than ABCB1 in regulating the PpIX accumulation in A549 lung cancer cells.

Conclusions: The combination of ALA and hemin followed by photoirradiation offers a promising novel treatment for lung cancer, and further evaluations of this therapy are required.

References
1.
Pustimbara A, Li C, Ogura S . Hemin enhances the 5-aminolevulinic acid-photodynamic therapy effect through the changes of cellular iron homeostasis. Photodiagnosis Photodyn Ther. 2024; 48:104253. DOI: 10.1016/j.pdpdt.2024.104253. View

2.
Yoshioka E, Chelakkot V, Licursi M, Rutihinda S, Som J, Derwish L . Enhancement of Cancer-Specific Protoporphyrin IX Fluorescence by Targeting Oncogenic Ras/MEK Pathway. Theranostics. 2018; 8(8):2134-2146. PMC: 5928876. DOI: 10.7150/thno.22641. View

3.
Sunder S, Sharma U, Pokharel S . Adverse effects of tyrosine kinase inhibitors in cancer therapy: pathophysiology, mechanisms and clinical management. Signal Transduct Target Ther. 2023; 8(1):262. PMC: 10326056. DOI: 10.1038/s41392-023-01469-6. View

4.
Xiao X, Chen M, Zhang Y, Li L, Peng Y, Li J . Hemin-incorporating DNA nanozyme enabling catalytic oxygenation and GSH depletion for enhanced photodynamic therapy and synergistic tumor ferroptosis. J Nanobiotechnology. 2022; 20(1):410. PMC: 9479271. DOI: 10.1186/s12951-022-01617-0. View

5.
Lai H, Takahashi K, Nakajima M, Tanaka T, Ogura S . Efficiency of aminolevulinic acid (ALA)-photodynamic therapy based on ALA uptake transporters in a cell density-dependent malignancy model. J Photochem Photobiol B. 2021; 218:112191. DOI: 10.1016/j.jphotobiol.2021.112191. View