Enhanced antitumor efficacy through an “AND gate” reactive oxygen-species-dependent pH-responsive nanomedicine approach
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F21%3A00543740" target="_blank" >RIV/61389013:_____/21:00543740 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11110/21:10429197
Výsledek na webu
<a href="https://onlinelibrary.wiley.com/doi/10.1002/adhm.202100304" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/adhm.202100304</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adhm.202100304" target="_blank" >10.1002/adhm.202100304</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Enhanced antitumor efficacy through an “AND gate” reactive oxygen-species-dependent pH-responsive nanomedicine approach
Popis výsledku v původním jazyce
Anticancer drug delivery strategies are designed to take advantage of the differential chemical environment in solid tumors independently, or to high levels of reactive oxygen species (ROS) or to low pH, compared to healthy tissue. Here, the design and thorough characterization of two functionalizable “AND gate” multiresponsive (MR) block amphiphilic copolymers are reported, aimed to take full advantage of the coexistence of two chemical cues—ROS and low pH—present in the tumor microenvironment. The hydrophobic blocks contain masked pH-responsive side chains, which are exposed exclusively in response to ROS. Hence, the hydrophobic polymer side chains will undergo a charge shift in a very relevant pH window present in the extracellular milieu in most solid tumors (pH 5.6–7.2) after demasking by ROS. Doxorubicin (DOX)-loaded nanosized “AND gate” MR polymersomes (MRPs) are fabricated via microfluidic self-assembly. Chemical characterization reveals ROS-dependent pH sensitivity and accelerated DOX release under influence of both ROS and low pH. Treatment of tumor-bearing mice with DOX-loaded nonresponsive and “AND gate” MRPs dramatically decreases cardiac toxicity. The most optimal “AND gate” MRPs outperform free DOX in terms of tumor growth inhibition and survival, shedding light on chemical requirements for successful cancer nanomedicine.
Název v anglickém jazyce
Enhanced antitumor efficacy through an “AND gate” reactive oxygen-species-dependent pH-responsive nanomedicine approach
Popis výsledku anglicky
Anticancer drug delivery strategies are designed to take advantage of the differential chemical environment in solid tumors independently, or to high levels of reactive oxygen species (ROS) or to low pH, compared to healthy tissue. Here, the design and thorough characterization of two functionalizable “AND gate” multiresponsive (MR) block amphiphilic copolymers are reported, aimed to take full advantage of the coexistence of two chemical cues—ROS and low pH—present in the tumor microenvironment. The hydrophobic blocks contain masked pH-responsive side chains, which are exposed exclusively in response to ROS. Hence, the hydrophobic polymer side chains will undergo a charge shift in a very relevant pH window present in the extracellular milieu in most solid tumors (pH 5.6–7.2) after demasking by ROS. Doxorubicin (DOX)-loaded nanosized “AND gate” MR polymersomes (MRPs) are fabricated via microfluidic self-assembly. Chemical characterization reveals ROS-dependent pH sensitivity and accelerated DOX release under influence of both ROS and low pH. Treatment of tumor-bearing mice with DOX-loaded nonresponsive and “AND gate” MRPs dramatically decreases cardiac toxicity. The most optimal “AND gate” MRPs outperform free DOX in terms of tumor growth inhibition and survival, shedding light on chemical requirements for successful cancer nanomedicine.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10404 - Polymer science
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Advanced Healthcare Materials
ISSN
2192-2640
e-ISSN
2192-2659
Svazek periodika
10
Číslo periodika v rámci svazku
13
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
9
Strana od-do
2100304
Kód UT WoS článku
000655851100001
EID výsledku v databázi Scopus
2-s2.0-85106707358