PpIX-enabled fluorescence-based detection and photodynamic priming of platinum-resistant ovarian cancer cells under fluid shear stress

Over 75% percent of ovarian cancer patients are diagnosed with advanced-stage disease characterized by unresectable intraperitoneal dissemination and the presence of ascites, or excessive fluid build-up within the abdomen. Conventional treatments include cytoreductive surgery followed by multi-line...

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Veröffentlicht in:Photochemistry and photobiology 2024-11, Vol.100 (6), p.1603-1621
Hauptverfasser: Ruhi, Mustafa Kemal, Rickard, Brittany P, Overchuk, Marta, Sinawang, Prima Dewi, Stanley, Elizabeth, Mansi, Matthew, Sierra, Raymond G, Hayes, Brandon, Tan, Xianming, Akin, Demir, Chen, Bin, Demirci, Utkan, Rizvi, Imran
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container_end_page 1621
container_issue 6
container_start_page 1603
container_title Photochemistry and photobiology
container_volume 100
creator Ruhi, Mustafa Kemal
Rickard, Brittany P
Overchuk, Marta
Sinawang, Prima Dewi
Stanley, Elizabeth
Mansi, Matthew
Sierra, Raymond G
Hayes, Brandon
Tan, Xianming
Akin, Demir
Chen, Bin
Demirci, Utkan
Rizvi, Imran
description Over 75% percent of ovarian cancer patients are diagnosed with advanced-stage disease characterized by unresectable intraperitoneal dissemination and the presence of ascites, or excessive fluid build-up within the abdomen. Conventional treatments include cytoreductive surgery followed by multi-line platinum and taxane chemotherapy regimens. Despite an initial response to treatment, over 75% of patients with advanced-stage ovarian cancer will relapse and succumb to platinum-resistant disease. Recent evidence suggests that fluid shear stress (FSS), which results from the movement of fluid such as ascites, induces epithelial-to-mesenchymal transition and confers resistance to carboplatin in ovarian cancer cells. This study demonstrates, for the first time, that FSS-induced platinum resistance correlates with increased cellular protoporphyrin IX (PpIX), the penultimate downstream product of heme biosynthesis, the production of which can be enhanced using the clinically approved pro-drug aminolevulinic acid (ALA). These data suggest that, with further investigation, PpIX could serve as a fluorescence-based biomarker of FSS-induced platinum resistance. Additionally, this study investigates the efficacy of PpIX-enabled photodynamic therapy (PDT) and the secretion of extracellular vesicles under static and FSS conditions in Caov-3 and NIH:OVCAR-3 cells, two representative cell lines for high-grade serous ovarian carcinoma (HGSOC), the most lethal form of the disease. FSS induces resistance to ALA-PpIX-mediated PDT, along with a significant increase in the number of EVs. Finally, the ability of PpIX-mediated photodynamic priming (PDP) to enhance carboplatin efficacy under FSS conditions is quantified. These preliminary findings in monolayer cultures necessitate additional studies to determine the feasibility of PpIX as a fluorescence-based indicator, and mediator of PDP, to target chemoresistance in the context of FSS.
doi_str_mv 10.1111/php.14014
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subjects Aminolevulinic acid
Aminolevulinic Acid - pharmacology
Aminolevulinic Acid - therapeutic use
Antineoplastic Agents - pharmacology
Ascites
Biomarkers
Biosynthesis
Cancer
Cancer therapies
Carboplatin
Carboplatin - pharmacology
Cell Line, Tumor
Cell migration
Chemoresistance
Chemotherapy
Disease resistance
Drug Resistance, Neoplasm
Effectiveness
Feasibility studies
Female
Fluid flow
Fluorescence
Humans
Mechanical stimuli
Ovarian cancer
Ovarian carcinoma
Ovarian Neoplasms - drug therapy
Ovarian Neoplasms - metabolism
Ovarian Neoplasms - pathology
Patients
Photochemotherapy - methods
Photodynamic therapy
Photosensitizing Agents - pharmacology
Photosensitizing Agents - therapeutic use
Platinum
Platinum - pharmacology
Platinum - therapeutic use
Priming
Protoporphyrin
Protoporphyrin IX
Protoporphyrins - metabolism
Shear stress
Stress, Mechanical
Tumor cell lines
title PpIX-enabled fluorescence-based detection and photodynamic priming of platinum-resistant ovarian cancer cells under fluid shear stress
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