Targeted Repolarization of Tumor‐Associated Macrophages via Imidazoquinoline‐Linked Nanobodies

Bibliographic Details
Title: Targeted Repolarization of Tumor‐Associated Macrophages via Imidazoquinoline‐Linked Nanobodies
Authors: Evangelia Bolli, Maximilian Scherger, Sana M. Arnouk, Ana Rita Pombo Antunes, David Straßburger, Moritz Urschbach, Judith Stickdorn, Karen De Vlaminck, Kiavash Movahedi, Hans Joachim Räder, Sophie Hernot, Pol Besenius, Jo A. Van Ginderachter, Lutz Nuhn
Source: Advanced Science, Vol 8, Iss 10, Pp n/a-n/a (2021)
Publisher Information: Wiley, 2021.
Publication Year: 2021
Collection: LCC:Science
Subject Terms: cancer immunotherapy, drug delivery, M2 macrophages, nanobodies, repolarization, TLR 7/8 agonist, Science
More Details: Abstract Tumor‐associated macrophages (TAMs) promote the immune suppressive microenvironment inside tumors and are, therefore, considered as a promising target for the next generation of cancer immunotherapies. To repolarize their phenotype into a tumoricidal state, the Toll‐like receptor 7/8 agonist imidazoquinoline IMDQ is site‐specifically and quantitatively coupled to single chain antibody fragments, so‐called nanobodies, targeting the macrophage mannose receptor (MMR) on TAMs. Intravenous injection of these conjugates result in a tumor‐ and cell‐specific delivery of IMDQ into MMRhigh TAMs, causing a significant decline in tumor growth. This is accompanied by a repolarization of TAMs towards a pro‐inflammatory phenotype and an increase in anti‐tumor T cell responses. Therefore, the therapeutic benefit of such nanobody‐drug conjugates may pave the road towards effective macrophage re‐educating cancer immunotherapies.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2198-3844
Relation: https://doaj.org/toc/2198-3844
DOI: 10.1002/advs.202004574
Access URL: https://doaj.org/article/cac8fa4c5d6f47508fc134a4bcd703ea
Accession Number: edsdoj.8fa4c5d6f47508fc134a4bcd703ea
Database: Directory of Open Access Journals
More Details
ISSN:21983844
DOI:10.1002/advs.202004574
Published in:Advanced Science
Language:English