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Polymers 2018, 10(2), 174; doi:10.3390/polym10020174

Optimizing Circulating Tumor Cells’ Capture Efficiency of Magnetic Nanogels by Transferrin Decoration

LAMAP Laboratorio de Materiales Poliméricos, IPQA-CONICET, Departamento de Química, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, X5000HUA Córdoba, Argentina
Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustr. 3, 14195 Berlin, Germany
Actorius Innovations and Research, B 411, GO Square, Wakad Road, 411057 Pune, India
Surgical Oncologist, Manik Hospital and Research Center, Aurangabad 431001, India
MAEER’s Maharashtra Institute of Pharmacy, Kothrud, Pune 411038, Maharashtra, India
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Received: 24 November 2017 / Revised: 19 January 2018 / Accepted: 6 February 2018 / Published: 11 February 2018
(This article belongs to the Special Issue Advance of Polymers Applied to Biomedical Applications: Biointerface)
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Magnetic nanogels (MNGs) are designed to have all the required features for their use as highly efficient trapping materials in the challenging task of selectively capturing circulating tumor cells (CTCs) from the bloodstream. Advantageously, the discrimination of CTCs from hematological cells, which is a key factor in the capturing process, can be optimized by finely tuning the polymers used to link the targeting moiety to the MNG. We describe herein the relationship between the capturing efficiency of CTCs with overexpressed transferrin receptors and the different strategies on the polymer used as linker to decorate these MNGs with transferrin (Tf). Heterobifunctional polyethylene glycol (PEG) linkers with different molecular weights were coupled to Tf in different ratios. Optimal values over 80% CTC capture efficiency were obtained when 3 PEG linkers with a length of 8 ethylene glycol (EG) units were used, which reveals the important role of the linker in the design of a CTC-sorting system. View Full-Text
Keywords: circulating tumor cells; magnetic nanogel; cell sorting; transferrin circulating tumor cells; magnetic nanogel; cell sorting; transferrin

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Biglione, C.; Bergueiro, J.; Asadian-Birjand, M.; Weise, C.; Khobragade, V.; Chate, G.; Dongare, M.; Khandare, J.; Strumia, M.C.; Calderón, M. Optimizing Circulating Tumor Cells’ Capture Efficiency of Magnetic Nanogels by Transferrin Decoration. Polymers 2018, 10, 174.

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