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  • Wang, LixinUniversity of South Australia (författare)

Doxorubicin-loaded delta inulin conjugates for controlled and targeted drug delivery: Development, characterization, and in vitro evaluation

  • Artikel/kapitelEngelska2019

Förlag, utgivningsår, omfång ...

  • 2019-11-06
  • MDPI AG,2019
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:research.chalmers.se:85ececbd-2f33-4063-b427-8875776ee7b1
  • https://research.chalmers.se/publication/513844URI
  • https://doi.org/10.3390/pharmaceutics11110581DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:art swepub-publicationtype
  • Ämneskategori:ref swepub-contenttype

Anmärkningar

  • Delta inulin, also known as microparticulate inulin (MPI), was modified by covalently attaching doxorubicin to its nanostructured surface for use as a targeted drug delivery vehicle. MPI is readily endocytosed by monocytes, macrophages, and dendritic cells and in this study, we sought to utilize this property to develop a system to target anti-cancer drugs to lymphoid organs. We investigated, therefore, whether MPI could be used as a vehicle to deliver doxorubicin selectively, thereby reducing the toxicity of this antibiotic anthracycline drug. Doxorubicin was covalently attached to the surface of MPI using an acid-labile linkage to enable pH-controlled release. The MPI-doxorubicin conjugate was characterized using FTIR and SEM, confirming covalent attachment and indicating doxorubicin coupling had no obvious impact on the physical nanostructure, integrity, and cellular uptake of the MPI particles. To simulate the stability of the MPI-doxorubicin in vivo, it was stored in artificial lysosomal fluid (ALF, pH 4.5). Although the MPI-doxorubicin particles were still visible after 165 days in ALF, 53% of glycosidic bonds in the inulin particles were hydrolyzed within 12 days in ALF, reflected by the release of free glucose into solution. By contrast, the fructosidic bonds were much more stable. Drug release studies of the MPI-doxorubicin in vitro, demonstrated a successful pH-dependent controlled release effect. Confocal laser scanning microscopy studies and flow cytometric analysis confirmed that when incubated with live cells, MPI-doxorubicin was effciently internalized by immune cells. An assay of cell metabolic activity demonstrated that the MPI carrier alone had no toxic effects on RAW 264.7 murine monocyte/macrophage-like cells, but exhibited anti-cancer effects against HCT116 human colon cancer cells. MPI-doxorubicin had a greater anti-cancer cell effect than free doxorubicin, particularly when at lower concentrations, suggesting a drug-sparing effect. This study establishes that MPI can be successfully modified with doxorubicin for chemotherapeutic drug delivery.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Song, YunmeiUniversity of South Australia (författare)
  • Parikh, AnkitUniversity of South Australia (författare)
  • Joyce, Paul,1989Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)pauljo (författare)
  • Chung, RosaUniversity of South Australia (författare)
  • Liu, LiangUniversity of South Australia (författare)
  • Afinjuomo, FranklinUniversity of South Australia (författare)
  • Hayball, John D.University of South Australia,University of Adelaide (författare)
  • Petrovsky, NikolaiFlinders University of South Australia (författare)
  • Barclay, Thomas G.University of South Australia (författare)
  • Garg, SanjayUniversity of South Australia (författare)
  • University of South AustraliaChalmers tekniska högskola (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Pharmaceutics: MDPI AG11:111999-4923

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