Cited by 201Nanoparticle-Based Drug DeliveryAdvanced Drug Delivery SystemsDendrimers and Hyperbranched Polymers

The DOI matches its Crossref record; 38 of the 41 references it cites were found in a registry or an index; 20 of the 48 sources its claims cite were checked for support.

Co-delivery of Paclitaxel and Cisplatin in Poly(2-oxazoline) Polymeric Micelles: Implications for Drug Loading, Release, Pharmacokinetics and Outcome of Ovarian and Breast Cancer Treatments

Open access

Abstract

Concurrent delivery of multiple drugs using nanoformulations can improve outcomes of cancer treatments. Here we demonstrate that this approach can be used to improve the paclitaxel (PTX) and alkylated cisplatin prodrug combination therapy of ovarian and breast cancer. The drugs are co-loaded in the polymeric micelle system based on amphiphilic block copolymer poly(2-methyl-2-oxazoline-block-2-butyl-2-oxazoline-block-2-methyl-2-oxazoline) (P(MeOx-b-BuOxb-MeOx). A broad range of drug mixing ratios and exceptionally high two-drug loading of over 50 wt.% drug in a stable micellar solution is demonstrated. The drugs co-loading in the micelles result in a slowed-down release to serum, improved pharmacokinetics and increased tumor distribution for both drugs. A superior anti-tumor activity of co-loaded PTX/CP drug micelles compared to single drug micelles or their mixture was demonstrated in cisplatin-resistant human ovarian carcinoma A2780/CisR xenograft tumor and multidrug resistant breast cancer LCC-6-MDR orthotopic tumor models. The improved tumor delivery of co-loaded drugs was related to decreased drug release rates as confirmed by simulation for micelle, serum and tumor compartments in a three-compartmental model. Overall, the results provide support for the use of PTX and cisplatin co-loaded micelles as a strategy for improved chemotherapy of ovarian and breast cancer and potential for the clinical translation.

Overview

Integrity signals

Registry

Crossref · 10.1016/j.biomaterials.2018.10.032

Cites

38 of 38 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

98 Own result · 27 Own interpretation · 15 No full text of the sources · 9 Partly supported · 8 No basis given · 6 Supported · 2 Supported so far · 2 Not checked yet · 2 Own method · accuracy not yet measured

Show all 85 claims

  • It may state two separate claims as one. 74
  • Probably not a substantial claim. 12
  • The quote only partly states this claim. 1
84 of 84
  • The paper relies on this without support.

    Taxanes including PTX are very poorly soluble and require toxic excipients in clinical formulations, such as Cremophor EL in Taxol, which can cause severe hypersensitivity reactions.

    “However, taxanes, including PTX, are very poorly soluble and thereby require the use of toxic excipients in clinical formulations, such as Cremophor EL in Taxol, which can cause severe hypersensitivity reactions in patients.”
  • The paper relies on this without support.

    Many drugs have poor miscibility with each other and many nanoparticle carriers have a fairly low loading threshold for such drugs.

    “A principal bottleneck in the development of co-loaded drug nanoformulations is that many drugs have poor miscibility with each other and many nanoparticle carriers have a fairly low loading threshold for such drugs.”
  • The authors state this as an assumption.

    Drug disposition in the three-compartment model follows first-order processes.

    “A three-compartmental model assuming first-order processes was developed using the computational modeling platform ADAPT5 [21].”
  • The paper relies on this without support.

    The three-compartment model with micelle, serum, and tumor compartments adequately represents drug distribution.

    “The improved tumor delivery of co-loaded drugs was related to decreased drug release rates as confirmed by simulation for micelle, serum and tumor compartments in a three-compartmental model.”
  • The paper relies on this without support.

    Radioactive labels track the polymer and PTX in pharmacokinetic studies.

    “All injections contained 64Cu-labelled POx (4 μCi/mouse) and PTX injections contained 3H-PTX (5 μCi/mouse).”
  • The authors state this as an assumption.

    A drug's antitumor efficacy is directly proportional to the quantity of that drug that reaches the tumor.

    “Assuming that the antitumor efficacy of a drug is directly related to the amount of this drug delivered to the tumor, we conducted PK modeling to estimate effects of various parameters on the tumor distribution of the micellar drugs.”
  • The authors state this as an assumption.

    The clearance rate of serum-bound drug is much faster than that of drug in polymeric micelles.

    “For both scenarios we assume that the clearance rate of the serum-bound drug is much faster than that of the drug in PM (k10 ≪ k20), which is generally consistent with our previous data comparing PK of PTX POx PM and Taxol that rapidly releases drug to the serum [15].”
  • The authors state this as an assumption.

    In the three-compartment PK simulation, micelles are stable and do not break down into unimers.

    “To illustrate this phenomenon, we carried out a PK simulation for a three-compartmental model under a simplified assumption that the micelles are stable and do not disintegrate to unimers.”
  • The paper relies on this without support.

    The connection between drug release rate and the pharmacokinetics and tumor distribution of micellar drugs has been relatively little studied.

    “However, the relationship of the drug release rate and the PK and tumor distribution of micellar drugs has been relatively less explored.”
9 of 9

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Each contradiction between two passages listed here was confirmed by an independent check.

4 of 4

Citations

Cites

Research works printed but not linked: 2

  1. Leonessa, 1996, vol. 73, 154
  2. FDA, 2005, vol. 70, 42346

Cited by

Sorted by citations

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Metadata

Authors
Wan, X., Beaudoin, J. J., Vinod, N., Min, Y., Makita, N., Bludau, H., Jordan, R., Wang, A., Sokolsky, M., & Kabanov, A. V.
Affiliations
  • University of North Carolina at Chapel Hill (US)
  • Technische Universität Dresden (DE)
Corresponding author
Kabanov, Alexander V.
Venue
Biomaterials
Publisher
Elsevier BV
Published
2019-02
Volume
192
Pages
1-14
ISSN
0142-9612 (ISSN-L)
OpenAlex
W2899192398
Cited by
201
References
41
Citations by year
2026: 13 · 2025: 11 · 2024: 21 · 2023: 30 · 2022: 38 · 2021: 28 · 2020: 34 · 2019: 26
FWCI
7.12
Type
journal article
Language
en
Open access
Locations
  • Biomaterials (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
  • National Science Foundation (ECCS-1542015)
  • National Cancer Institute (U54CA198999, R21 CA182322)
  • China Scholarship Council (2011601254)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
  • Physical Sciences › Materials Science › Polymers and Plastics › Dendrimers and Hyperbranched Polymers
Keywords
paclitaxel, cisplatin, co-delivery, amphiphilic block copolymers, drug loading, controlled drug release, pharmacokinetics, tumor distribution, ovarian cancer, breast cancer, cisplatin resistance, multidrug resistance, combination chemotherapy
MeSH terms
Animals, Antineoplastic Agents, Breast Neoplasms, Cisplatin, Drug Carriers, Female, Humans, Mice, Nude, Micelles, Ovarian Neoplasms, Oxazoles, Paclitaxel, Cell Line, Tumor, Drug Liberation

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