التفاصيل البيبلوغرافية
| العنوان: |
Site-Specific DBCO Modification of DEC205 Antibody for Polymer Conjugation |
| المؤلفون: |
Simone Beck, Jennifer Schultze, Hans-Joachim Räder, Regina Holm, Meike Schinnerer, Matthias Barz, Kaloian Koynov, Rudolf Zentel |
| المصدر: |
Polymers; Volume 10; Issue 2; Pages: 141 |
| بيانات النشر: |
Multidisciplinary Digital Publishing Institute |
| سنة النشر: |
2018 |
| المجموعة: |
MDPI Open Access Publishing |
| مصطلحات موضوعية: |
cancer immune therapy, vaccination, dendritic cells (DCs), pDNA polyplex, RAFT polymerization, targeting, DEC205 antibody, bioorthogonal chemistry, strain-promoted alkyne-azide cycloaddition (SPAAC) |
| الوصف: |
The design of multifunctional polymer-based vectors, forming pDNA vaccines, offers great potential in cancer immune therapy. The transfection of dendritic immune cells (DCs) with tumour antigen-encoding pDNA leads to an activation of the immune system to combat tumour cells. In this work, we investigated the chemical attachment of DEC205 antibodies (aDEC205) as DC-targeting structures to polyplexes of P(Lys)-b-P(HPMA). The conjugation of a synthetic block copolymer and a biomacromolecule with various functionalities (aDEC205) requires bioorthogonal techniques to avoid side reactions. Click chemistry and in particular the strain-promoted alkyne-azide cycloaddition (SPAAC) can provide the required bioorthogonality. With regard to a SPAAC of both components, we firstly synthesized two different azide-containing block copolymers, P(Lys)-b-P(HPMA)-N3(stat) and P(Lys)-b-P(HPMA)-N3(end), for pDNA complexation. In addition, the site-specific incorporation of ring-strained dibenzocyclooctyne (DBCO) moieties to the DEC205 antibody was achieved by an enzymatic strategy using bacterial transglutaminase (BTG). The chemical accessibility of DBCO molecules within aDEC205 as well as the accessibility of azide-functionalities on the polyplex’ surface were investigated by various SPAAC experiments and characterized by fluorescence correlation spectroscopy (FCS). |
| نوع الوثيقة: |
text |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
https://dx.doi.org/10.3390/polym10020141 |
| DOI: |
10.3390/polym10020141 |
| الاتاحة: |
https://doi.org/10.3390/polym10020141 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.5D46AF38 |
| قاعدة البيانات: |
BASE |