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Blue Light Aminolevulinic Acid Photodynamic Therapy Downregulates Cell Division and Proliferation Pathways in Cutaneous Squamous Cell Carcinoma
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  • Jared Jagdeo,
  • Evan Austin,
  • Jessica Mineroff,
  • Isabella Dana
Jared Jagdeo
SUNY Downstate Health Sciences University

Corresponding Author:jrjagdeo@gmail.com

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Evan Austin
SUNY Downstate Health Sciences University
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Jessica Mineroff
SUNY Downstate Health Sciences University
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Isabella Dana
SUNY Downstate Health Sciences University
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Abstract

5-Aminolevulinic (5-ALA) acid photodynamic therapy (PDT) is a treatment for actinic keratosis and has been studied as a treatment for non-invasive cutaneous squamous cell carcinoma (cSCC). PDT induces apoptosis and necrosis in actinic keratosis and cSCC. 5-ALA blue light PDT may modulate gene expression and pathways in surviving cells. In this study, differential gene expression and pathway analysis of cSCC and human dermal fibroblasts were compared before and after 5-ALA blue light PDT using RNA-Sequencing. No genes were differentially expressed after correcting for multiple testing (FDR <0.05). As a result, transcription factor, gene enrichment, and pathway analysis were performed with genes identified before multiple testing (p<0.05). Pathways associated with proliferation and carcinogenesis were downregulated. These findings using 5-ALA blue light PDT are similar to previously published studies using methyl-aminolevulinic and red light protocols, indicating that surviving residual cells may undergo changes consistent with a less aggressive cancerous phenotype.
11 Sep 2023Submitted to Journal of Biophotonics
11 Sep 2023Submission Checks Completed
11 Sep 2023Assigned to Editor
11 Sep 2023Review(s) Completed, Editorial Evaluation Pending
11 Sep 2023Reviewer(s) Assigned