Cited by 265Protein Degradation and InhibitorsMonoclonal and Polyclonal Antibodies ResearchCRISPR and Genetic Engineering

Modular cytokine receptor-targeting chimeras for targeted degradation of cell surface and extracellular proteins

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Pance, Katarina, Gramespacher, Josef A., Byrnes, James R., Salangsang, Fernando, Serrano, Juan-Antonio C., Cotton, Adam D., Steri, Veronica, Wells, James A.·2023·Nature Biotechnology

Abstract

Targeted degradation of cell surface and extracellular proteins via lysosomal delivery is an important means to modulate extracellular biology. However, these approaches have limitations due to lack of modularity, ease of development, restricted tissue targeting and applicability to both cell surface and extracellular proteins. We describe a lysosomal degradation strategy, termed cytokine receptor-targeting chimeras (KineTACs), that addresses these limitations. KineTACs are fully genetically encoded bispecific antibodies consisting of a cytokine arm, which binds its cognate cytokine receptor, and a target-binding arm for the protein of interest. We show that KineTACs containing the cytokine CXCL12 can use the decoy recycling receptor, CXCR7, to target a variety of target proteins to the lysosome for degradation. Additional KineTACs were designed to harness other CXCR7-targeting cytokines, CXCL11 and vMIPII, and the interleukin-2 (IL-2) receptor-targeting cytokine IL-2. Thus, KineTACs represent a general, modular, selective and simple genetically encoded strategy for inducing lysosomal delivery of extracellular and cell surface targets with broad or tissue-specific distribution.

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  • KineTACs are modular cytokine receptor targeting chimeras for targeted degradation of cell surface and extracellular proteins, based on a fully recombinant bispecific antibody human scaffold; KineTAC CXCL12-Atz targeting PD-L1 effectively degraded PD-L1 in breast cancer cells after 24 h, while single-arm Atz Fab or CXCL12 alone failed to induce PD-L1 degradation, and the platform also degraded HER

    “To address the challenge of targeting soluble proteins outside cells, James A. Wells’ team developed cytokine receptor-targeting chimeras (KineTACs), a modular cytokine receptor targeting chimera for the targeted degradation of cell surface and extracellular proteins. KineTAC is a fully recombinant bispecific antibody based on a human scaffold that employs the internalization of homologous”

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Authors
Pance, K., Gramespacher, J. A., Byrnes, J. R., Salangsang, F., Serrano, J.-A. C., Cotton, A. D., Steri, V., & Wells, J. A.
Affiliations
University of California, San Francisco (US)
Corresponding author
Wells, James A.
Venue
Nature Biotechnology
Published
2022-09-22
Volume
41
Issue
2
Pages
273-281
ISSN
  • 0733-222X (ISSN-L)
  • 1087-0156
  • 1546-1696
OpenAlex
W4296691508
Cited by
265
References
57
Citations by year
2026: 68 · 2025: 97 · 2024: 58 · 2023: 41 · 2022: 1
FWCI
16.08
Type
journal article
Language
en
Open access
Locations
  • Nature Biotechnology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • U.S. Department of Health & Human Services | NIH | National Cancer Institute (1F31CA265080-01, 5F32CA239417, R01CA248323)
  • U.S. Department of Health & Human Services | National Institutes of Health (R35GM122451)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
Keywords
targeted protein degradation, lysosomal degradation, bispecific antibodies, CXCL12, CXCR7, decoy receptor, CXCL11, interleukin-2 receptor, interleukin-2, cell surface proteins, extracellular proteins, tissue-specific targeting
MeSH terms
Proteolysis Targeting Chimera, Cell Membrane, Interleukin-2, Signal Transduction, Receptors, Cytokine, Chemokine CXCL12, Proteolysis

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