Cancer cell survival model after photodynamic therapy

Photodynamic therapy (PDT) is known as a routine treatment method in which cell survival index like viability plotted versus 1O2 concentration or light fluence in the form of a curve. In this paper, a mathematical model was proposed with ability of generating a mirrored-sigmoid curve which seems to...

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Main Authors: L. Karami-Gadallo, M. Pouladian
Format: Article
Language:Russian
Published: Non-profit partnership for development of domestic photodynamic therapy and photodiagnosis "Russian Photodynamic Association" 2022-07-01
Series:Biomedical Photonics
Subjects:
Online Access:https://www.pdt-journal.com/jour/article/view/538
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author L. Karami-Gadallo
M. Pouladian
author_facet L. Karami-Gadallo
M. Pouladian
author_sort L. Karami-Gadallo
collection DOAJ
description Photodynamic therapy (PDT) is known as a routine treatment method in which cell survival index like viability plotted versus 1O2 concentration or light fluence in the form of a curve. In this paper, a mathematical model was proposed with ability of generating a mirrored-sigmoid curve which seems to be fitted to any experimental data relating to cell viability, survival probability or any cellular index representing living conditions through adjusting three parameters. It was validated by showing an excellent curve fitting relatively with data obtained from cancerous lung cells under ALA-PDT process in vitro. It was tried to define the relations between model’s parameters and biological/clinical factors with the curve regions of plateau (at low doses; non- sensitive part), steep (high-sensitive part), and steady state (at high doses; low-sensitive part). It seems this model could be excellently fitted to any data presenting the cell-living index versus the killer agent in «any cancer therapy technique (e.g. radiotherapy)». Although this claim showed to be correct for PDT, different relevant data of other researchers should also be used for this model and other usual models too, in order to compare their fitness rates.
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issn 2413-9432
language Russian
publishDate 2022-07-01
publisher Non-profit partnership for development of domestic photodynamic therapy and photodiagnosis "Russian Photodynamic Association"
record_format Article
series Biomedical Photonics
spelling doaj-art-0b5c829cd79747999c87cb2b03dfea342025-08-20T03:00:53ZrusNon-profit partnership for development of domestic photodynamic therapy and photodiagnosis "Russian Photodynamic Association"Biomedical Photonics2413-94322022-07-0111241110.24931/2413-9432-2022-11-2-4-11251Cancer cell survival model after photodynamic therapyL. Karami-Gadallo0M. Pouladian1Islamic Azad UniversityIslamic Azad UniversityPhotodynamic therapy (PDT) is known as a routine treatment method in which cell survival index like viability plotted versus 1O2 concentration or light fluence in the form of a curve. In this paper, a mathematical model was proposed with ability of generating a mirrored-sigmoid curve which seems to be fitted to any experimental data relating to cell viability, survival probability or any cellular index representing living conditions through adjusting three parameters. It was validated by showing an excellent curve fitting relatively with data obtained from cancerous lung cells under ALA-PDT process in vitro. It was tried to define the relations between model’s parameters and biological/clinical factors with the curve regions of plateau (at low doses; non- sensitive part), steep (high-sensitive part), and steady state (at high doses; low-sensitive part). It seems this model could be excellently fitted to any data presenting the cell-living index versus the killer agent in «any cancer therapy technique (e.g. radiotherapy)». Although this claim showed to be correct for PDT, different relevant data of other researchers should also be used for this model and other usual models too, in order to compare their fitness rates.https://www.pdt-journal.com/jour/article/view/538cell survival curvemathematical modelingphotodynamic therapy
spellingShingle L. Karami-Gadallo
M. Pouladian
Cancer cell survival model after photodynamic therapy
Biomedical Photonics
cell survival curve
mathematical modeling
photodynamic therapy
title Cancer cell survival model after photodynamic therapy
title_full Cancer cell survival model after photodynamic therapy
title_fullStr Cancer cell survival model after photodynamic therapy
title_full_unstemmed Cancer cell survival model after photodynamic therapy
title_short Cancer cell survival model after photodynamic therapy
title_sort cancer cell survival model after photodynamic therapy
topic cell survival curve
mathematical modeling
photodynamic therapy
url https://www.pdt-journal.com/jour/article/view/538
work_keys_str_mv AT lkaramigadallo cancercellsurvivalmodelafterphotodynamictherapy
AT mpouladian cancercellsurvivalmodelafterphotodynamictherapy