Identification of Blood Transport Proteins to Carry Temoporfin: A Domino Approach from Virtual Screening to Synthesis and In Vitro PDT Testing

Temoporfin (mTHPC) is one of the most promising photosensitizers used in photodynamic therapy (PDT). Despite its clinical use, the lipophilic character of mTHPC still hampers the full exploitation of its potential. Low solubility in water, high tendency to aggregate, and low biocompatibility are the...

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Main Authors: Alessia Marconi, Giulia Giugliano, Matteo Di Giosia, Tainah Dorina Marforio, Michele Trivini, Eleonora Turrini, Carmela Fimognari, Francesco Zerbetto, Edoardo Jun Mattioli, Matteo Calvaresi
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Pharmaceutics
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Online Access:https://www.mdpi.com/1999-4923/15/3/919
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author Alessia Marconi
Giulia Giugliano
Matteo Di Giosia
Tainah Dorina Marforio
Michele Trivini
Eleonora Turrini
Carmela Fimognari
Francesco Zerbetto
Edoardo Jun Mattioli
Matteo Calvaresi
author_facet Alessia Marconi
Giulia Giugliano
Matteo Di Giosia
Tainah Dorina Marforio
Michele Trivini
Eleonora Turrini
Carmela Fimognari
Francesco Zerbetto
Edoardo Jun Mattioli
Matteo Calvaresi
author_sort Alessia Marconi
collection DOAJ
description Temoporfin (mTHPC) is one of the most promising photosensitizers used in photodynamic therapy (PDT). Despite its clinical use, the lipophilic character of mTHPC still hampers the full exploitation of its potential. Low solubility in water, high tendency to aggregate, and low biocompatibility are the main limitations because they cause poor stability in physiological environments, dark toxicity, and ultimately reduce the generation of reactive oxygen species (ROS). Applying a reverse docking approach, here, we identified a number of blood transport proteins able to bind and disperse monomolecularly mTHPC, namely apohemoglobin, apomyoglobin, hemopexin, and afamin. We validated the computational results synthesizing the mTHPC-apomyoglobin complex (mTHPC@apoMb) and demonstrated that the protein monodisperses mTHPC in a physiological environment. The mTHPC@apoMb complex preserves the imaging properties of the molecule and improves its ability to produce ROS via both type I and type II mechanisms. The effectiveness of photodynamic treatment using the mTHPC@apoMb complex was then demonstrated in vitro. Blood transport proteins can be used as molecular “Trojan horses” in cancer cells by conferring mTHPC (i) water solubility, (ii) monodispersity, and (iii) biocompatibility, ultimately bypassing the current limitations of mTHPC.
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spelling doaj.art-facad439afc64694bdb1741ddd4791ac2023-11-17T13:16:15ZengMDPI AGPharmaceutics1999-49232023-03-0115391910.3390/pharmaceutics15030919Identification of Blood Transport Proteins to Carry Temoporfin: A Domino Approach from Virtual Screening to Synthesis and In Vitro PDT TestingAlessia Marconi0Giulia Giugliano1Matteo Di Giosia2Tainah Dorina Marforio3Michele Trivini4Eleonora Turrini5Carmela Fimognari6Francesco Zerbetto7Edoardo Jun Mattioli8Matteo Calvaresi9Dipartimento di Chimica “Giacomo Ciamician”, Alma Mater Studiorum—Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, ItalyDipartimento di Chimica “Giacomo Ciamician”, Alma Mater Studiorum—Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, ItalyDipartimento di Chimica “Giacomo Ciamician”, Alma Mater Studiorum—Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, ItalyDipartimento di Chimica “Giacomo Ciamician”, Alma Mater Studiorum—Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, ItalyDipartimento di Chimica “Giacomo Ciamician”, Alma Mater Studiorum—Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, ItalyDipartimento di Scienze per la Qualità della Vita, Alma Mater Studiorum—Università di Bologna, Corso d’Augusto 237, 47921 Rimini, ItalyDipartimento di Scienze per la Qualità della Vita, Alma Mater Studiorum—Università di Bologna, Corso d’Augusto 237, 47921 Rimini, ItalyDipartimento di Chimica “Giacomo Ciamician”, Alma Mater Studiorum—Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, ItalyDipartimento di Chimica “Giacomo Ciamician”, Alma Mater Studiorum—Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, ItalyDipartimento di Chimica “Giacomo Ciamician”, Alma Mater Studiorum—Università di Bologna, Via Francesco Selmi 2, 40126 Bologna, ItalyTemoporfin (mTHPC) is one of the most promising photosensitizers used in photodynamic therapy (PDT). Despite its clinical use, the lipophilic character of mTHPC still hampers the full exploitation of its potential. Low solubility in water, high tendency to aggregate, and low biocompatibility are the main limitations because they cause poor stability in physiological environments, dark toxicity, and ultimately reduce the generation of reactive oxygen species (ROS). Applying a reverse docking approach, here, we identified a number of blood transport proteins able to bind and disperse monomolecularly mTHPC, namely apohemoglobin, apomyoglobin, hemopexin, and afamin. We validated the computational results synthesizing the mTHPC-apomyoglobin complex (mTHPC@apoMb) and demonstrated that the protein monodisperses mTHPC in a physiological environment. The mTHPC@apoMb complex preserves the imaging properties of the molecule and improves its ability to produce ROS via both type I and type II mechanisms. The effectiveness of photodynamic treatment using the mTHPC@apoMb complex was then demonstrated in vitro. Blood transport proteins can be used as molecular “Trojan horses” in cancer cells by conferring mTHPC (i) water solubility, (ii) monodispersity, and (iii) biocompatibility, ultimately bypassing the current limitations of mTHPC.https://www.mdpi.com/1999-4923/15/3/919dockingvirtual screeningMD simulationsMM-GBSAtemoporfin (mTHPC)apomyoglobin
spellingShingle Alessia Marconi
Giulia Giugliano
Matteo Di Giosia
Tainah Dorina Marforio
Michele Trivini
Eleonora Turrini
Carmela Fimognari
Francesco Zerbetto
Edoardo Jun Mattioli
Matteo Calvaresi
Identification of Blood Transport Proteins to Carry Temoporfin: A Domino Approach from Virtual Screening to Synthesis and In Vitro PDT Testing
Pharmaceutics
docking
virtual screening
MD simulations
MM-GBSA
temoporfin (mTHPC)
apomyoglobin
title Identification of Blood Transport Proteins to Carry Temoporfin: A Domino Approach from Virtual Screening to Synthesis and In Vitro PDT Testing
title_full Identification of Blood Transport Proteins to Carry Temoporfin: A Domino Approach from Virtual Screening to Synthesis and In Vitro PDT Testing
title_fullStr Identification of Blood Transport Proteins to Carry Temoporfin: A Domino Approach from Virtual Screening to Synthesis and In Vitro PDT Testing
title_full_unstemmed Identification of Blood Transport Proteins to Carry Temoporfin: A Domino Approach from Virtual Screening to Synthesis and In Vitro PDT Testing
title_short Identification of Blood Transport Proteins to Carry Temoporfin: A Domino Approach from Virtual Screening to Synthesis and In Vitro PDT Testing
title_sort identification of blood transport proteins to carry temoporfin a domino approach from virtual screening to synthesis and in vitro pdt testing
topic docking
virtual screening
MD simulations
MM-GBSA
temoporfin (mTHPC)
apomyoglobin
url https://www.mdpi.com/1999-4923/15/3/919
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