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Crosslinked Chitosan-PEG Hydrogel for Culture of Human Glioblastoma Cell Spheroids and Drug Screening.
Chang, Fei-Chien; Levengood, Sheeny Lan; Cho, Nick; Chen, Likai; Wang, Everet; Yu, John S; Zhang, Miqin.
Afiliación
  • Chang FC; Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, USA.
  • Levengood SL; Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, USA.
  • Cho N; Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, USA.
  • Chen L; Department of Bioengineering Engineering, University of Washington, Seattle, Washington 98195, USA.
  • Wang E; Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, USA.
  • Yu JS; Department of Neurosurgery, Maxine-Dunitz Neurosurgical Institute, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA.
  • Zhang M; Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, USA.
Adv Ther (Weinh) ; 1(7)2018 Nov.
Article en En | MEDLINE | ID: mdl-31435500
Two-dimensional monolayer cell cultures are routinely utilized for preclinical cancer drug screening, but the results often do not translate well when drugs are tested in vivo. To address this limitation, a biocompatible chitosan-PEG hydrogel (CSPG gel) was synthesized to create a gel that can be easily dispensed into 96-well plates at room temperature and neutral pH. The stiffness of this gel was tailored to be within the stiffness range of human glioblastoma tissue to promote the formation of tumor spheroids. Differences in cell morphology, proliferation rate, and dose-dependent drug cytotoxicity were compared among cell spheroids grown on CSPG gels, cells in monolayer culture on tissue culture polystyrene and cells cultured on Matrigel. Tumor spheroids on CSPG gels displayed statistically significantly greater resistance to chemotherapeutics than in the conditions where cells did not form spheroids. Gene expression analysis suggests that resistance of cells on CSPG gels to the therapy may be partially attributed to upregulation of ATP-binding cassette transporters and downregulation of DNA mismatch repair genes, which was stimulated by spheroid formation. These findings suggest CSPG gel generates tumor spheroids that better reflect the malignant behavior of GBM and provides a cost-effective substrate for preclinical, high-throughput screening of potential cancer therapeutics.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies / Screening_studies Idioma: En Revista: Adv Ther (Weinh) Año: 2018 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies / Screening_studies Idioma: En Revista: Adv Ther (Weinh) Año: 2018 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Alemania