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The comparison of in vivo properties of water-soluble HPMA-based polymer conjugates with doxorubicin prepared by controlled RAFT or free radical polymerization
P. Chytil, M. Šírová, E. Koziolová, K. Ulbrich, B. Říhová, T. Etrych
Jazyk angličtina Země Česko
Typ dokumentu srovnávací studie, časopisecké články, práce podpořená grantem
Free Medical Journals od 1998
ProQuest Central od 2005-01-01
Medline Complete (EBSCOhost) od 2006-01-01
Nursing & Allied Health Database (ProQuest) od 2005-01-01
Health & Medicine (ProQuest) od 2005-01-01
ROAD: Directory of Open Access Scholarly Resources od 1998
Odkazy
PubMed
26447594
DOI
10.33549/physiolres.933137
domovská stránka časopisu
Knihovny.cz E-zdroje
- MeSH
- analýza přežití MeSH
- antibiotika antitumorózní chemie farmakokinetika farmakologie MeSH
- doxorubicin chemie farmakokinetika farmakologie MeSH
- experimentální nádory farmakoterapie metabolismus patologie MeSH
- léky s prodlouženým účinkem MeSH
- methakryláty chemie MeSH
- myši inbrední C57BL MeSH
- myši MeSH
- nosiče léků MeSH
- polymery chemická syntéza MeSH
- tkáňová distribuce MeSH
- volné radikály chemie MeSH
- xenogenní modely - testy antitumorózní aktivity MeSH
- zvířata MeSH
- Check Tag
- mužské pohlaví MeSH
- myši MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
Two conjugates of anticancer drug doxorubicin (Dox) covalently bound by the hydrolytically degradable hydrazone bond to the polymer carrier based on water-soluble N-(2-hydroxypropyl) methacrylamide (HPMA) copolymers were synthesized and their properties were compared, namely their behavior in vivo. The polymer carriers differed in dispersity due to different methods of synthesis; the carrier with relatively high dispersity (HD) was prepared by free radical polymerization (Mw=29,900 g/mol, D=1.75) and the carrier with low dispersity (LD) by controlled radical polymerization (Mw=30,000 g/mol, D=1.13). Both polymer-Dox conjugates showed prolonged blood circulation and tumor accumulation of the drug in comparison with the free drug; e.g. the tumor-to-blood ratio for the polymer-bound Dox was 3-5 times higher. The LD polymer-Dox conjugate exhibited moderately higher tumor accumulation than the HD one at a dose of 1x15 mg Dox (eq.)/kg. Also, their anti-tumor activity did not differ when injected at this dose. However, the increase of the dose to 1x25 mg Dox (eq.)/kg resulted in the enhanced therapeutic activity of the conjugates, especially of the LD one with 100% of long-term survivals. The dispersity of polymer drug carriers influenced the tumor accumulation rate, which affected the overall anti-cancer activity of polymer-drug conjugates.
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- $a Two conjugates of anticancer drug doxorubicin (Dox) covalently bound by the hydrolytically degradable hydrazone bond to the polymer carrier based on water-soluble N-(2-hydroxypropyl) methacrylamide (HPMA) copolymers were synthesized and their properties were compared, namely their behavior in vivo. The polymer carriers differed in dispersity due to different methods of synthesis; the carrier with relatively high dispersity (HD) was prepared by free radical polymerization (Mw=29,900 g/mol, D=1.75) and the carrier with low dispersity (LD) by controlled radical polymerization (Mw=30,000 g/mol, D=1.13). Both polymer-Dox conjugates showed prolonged blood circulation and tumor accumulation of the drug in comparison with the free drug; e.g. the tumor-to-blood ratio for the polymer-bound Dox was 3-5 times higher. The LD polymer-Dox conjugate exhibited moderately higher tumor accumulation than the HD one at a dose of 1x15 mg Dox (eq.)/kg. Also, their anti-tumor activity did not differ when injected at this dose. However, the increase of the dose to 1x25 mg Dox (eq.)/kg resulted in the enhanced therapeutic activity of the conjugates, especially of the LD one with 100% of long-term survivals. The dispersity of polymer drug carriers influenced the tumor accumulation rate, which affected the overall anti-cancer activity of polymer-drug conjugates.
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