Controlled Surface Adhesion of Macrophages via Patterned Antifouling Polymer Brushes

Autor: Johannes Striebel, Mariia Vorobii, Ravi Kumar, Hui-Yu Liu, Bingquan Yang, Carsten Weishaupt, Cesar Rodriguez-Emmenegger, Harald Fuchs, Michael Hirtz, Kristina Riehemann
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Advanced NanoBiomed Research, Vol 1, Iss 1, Pp n/a-n/a (2021)
Druh dokumentu: article
ISSN: 2699-9307
DOI: 10.1002/anbr.202000029
Popis: Macrophages will play an important role in future diagnostics and immunotherapies of cancer. However, this demands to selectively capture and sort different subpopulations, which remains a challenge due to their innate ability to bind to a wide range of interfaces indiscriminately. The main obstacle here is the lack of interfaces combining sufficient antifouling properties with the display of specific binding sites allowing sorting and quantification. Herein, as a proof of principle means, it is introduced to pattern interfaces to locally and selective capture macrophages. The repellent coating is based on antifouling polymer brushes, which can be functionalized. Arrays of binding sites are constructed by microchannel cantilever spotting. Those structures are tested for the isolation of different macrophage subtypes, especially polarized anti‐inflammatory macrophages of the M2 type which can be found associated to tumors (“tumor associated macrophages”; TAMs). Using macrophages as a model system, it is demonstrated that the newly developed surfaces and patterns are efficient for specifically trapping targeted cells and can be useful for further development of therapeutic or diagnostic purposes in the future.
Databáze: Directory of Open Access Journals