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Synthetic Integrin-Targeting Dextran-Fc Hybrids Efficiently Inhibit Tumor Proliferation In Vitro

Schneider, Hendrik ; Englert, Simon ; Macarrón Palacios, Arturo ; Lerma Romero, Jorge Alberto ; Ali, Ataurehman ; Avrutina, Olga ; Kolmar, Harald (2021)
Synthetic Integrin-Targeting Dextran-Fc Hybrids Efficiently Inhibit Tumor Proliferation In Vitro.
In: Frontiers in Chemistry, 2021, 9
doi: 10.26083/tuprints-00019401
Artikel, Zweitveröffentlichung, Verlagsversion

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Kurzbeschreibung (Abstract)

Herein, we present the design, synthesis, and biological evaluation of novel integrintargeting molecular hybrids combining RGD peptides and a potent cytotoxin presented on dextran polysaccharides. Based on an aglycosylated Fc as a centerpiece, endosomalcleavable cytotoxic agent monomethyl auristatin E (MMAE) and dextran as multimerization site were covalently connected by two bioorthogonal enzyme-mediated reactions sitespecifically. Decoration of dextran with cyclic RGD peptides, introduced by copper “click” reaction, resulted in the final constructs with the potential to kill integrin-overexpressing tumor cells. We found that these modifications had little impact on the stability of the Fc scaffold and the RGD-bearing construct showed good binding properties of αvβ3-expressing U87MG cells. Furthermore, the construct showed a remarkable antiproliferative activity. These results demonstrate the general capability of our design to provoke receptor-mediated endocytosis upon binding to the cellular surface, followed by endosomal cleavage of the linkage between Fc-dextran and MMAE and its subsequent release. Our approach opens new avenues to transcribe small molecule binders into tailormade multimeric molecular hybrids with antitumor potential.

Typ des Eintrags: Artikel
Erschienen: 2021
Autor(en): Schneider, Hendrik ; Englert, Simon ; Macarrón Palacios, Arturo ; Lerma Romero, Jorge Alberto ; Ali, Ataurehman ; Avrutina, Olga ; Kolmar, Harald
Art des Eintrags: Zweitveröffentlichung
Titel: Synthetic Integrin-Targeting Dextran-Fc Hybrids Efficiently Inhibit Tumor Proliferation In Vitro
Sprache: Englisch
Publikationsjahr: 30 August 2021
Ort: Darmstadt
Publikationsdatum der Erstveröffentlichung: 2021
Verlag: Frontiers
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Frontiers in Chemistry
Jahrgang/Volume einer Zeitschrift: 9
Kollation: 11 Seiten
DOI: 10.26083/tuprints-00019401
URL / URN: https://tuprints.ulb.tu-darmstadt.de/19401
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Herkunft: Zweitveröffentlichung aus gefördertem Golden Open Access
Kurzbeschreibung (Abstract):

Herein, we present the design, synthesis, and biological evaluation of novel integrintargeting molecular hybrids combining RGD peptides and a potent cytotoxin presented on dextran polysaccharides. Based on an aglycosylated Fc as a centerpiece, endosomalcleavable cytotoxic agent monomethyl auristatin E (MMAE) and dextran as multimerization site were covalently connected by two bioorthogonal enzyme-mediated reactions sitespecifically. Decoration of dextran with cyclic RGD peptides, introduced by copper “click” reaction, resulted in the final constructs with the potential to kill integrin-overexpressing tumor cells. We found that these modifications had little impact on the stability of the Fc scaffold and the RGD-bearing construct showed good binding properties of αvβ3-expressing U87MG cells. Furthermore, the construct showed a remarkable antiproliferative activity. These results demonstrate the general capability of our design to provoke receptor-mediated endocytosis upon binding to the cellular surface, followed by endosomal cleavage of the linkage between Fc-dextran and MMAE and its subsequent release. Our approach opens new avenues to transcribe small molecule binders into tailormade multimeric molecular hybrids with antitumor potential.

Status: Verlagsversion
URN: urn:nbn:de:tuda-tuprints-194014
Zusätzliche Informationen:

Keywords: integrins, RGD peptide, dextran, drug delivery and targeting, multimerization

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 540 Chemie
Fachbereich(e)/-gebiet(e): 07 Fachbereich Chemie
07 Fachbereich Chemie > Clemens-Schöpf-Institut > Fachgebiet Biochemie
07 Fachbereich Chemie > Clemens-Schöpf-Institut
07 Fachbereich Chemie > Clemens-Schöpf-Institut > Fachgebiet Organische Chemie
Hinterlegungsdatum: 30 Aug 2021 12:23
Letzte Änderung: 01 Aug 2024 09:31
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