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Immunoglobulin deposition on biomolecule corona determines complement opsonization efficiency of preclinical and clinical nanoparticles

Open access
Vu, Vivian P., Gifford, Geoffrey B., Chen, Fangfang, Benasutti, Halli, Wang, Guankui, Groman, Ernest V., Scheinman, Robert, Saba, Laura, Moghimi, Seyed Moein, Simberg, Dmitri·2019·Nature Nanotechnology

Abstract

Deposition of complement factors (opsonization) on nanoparticles may promote clearance from the blood by macrophages and trigger proinflammatory responses, but the mechanisms regulating the efficiency of complement activation are poorly understood. We previously demonstrated that opsonization of superparamagnetic iron oxide (SPIO) nanoworms with the third complement protein (C3) was dependent on the biomolecule corona of the nanoparticles. Here we show that natural antibodies play a critical role in C3 opsonization of SPIO nanoworms and a range of clinically approved nanopharmaceuticals. The dependency of C3 opsonization on immunoglobulin binding is almost universal and is observed regardless of the complement activation pathway. Only a few surface-bound immunoglobulin molecules are needed to trigger complement activation and opsonization. Although the total amount of plasma proteins adsorbed on nanoparticles does not determine C3 deposition efficiency, the biomolecule corona per se enhances immunoglobulin binding to all nanoparticle types. We therefore show that natural antibodies represent a link between biomolecule corona and C3 opsonization, and may determine individual complement responses to nanomedicines.Immunoglobulins mediate deposition of the third complement protein (C3) on the biomolecule corona of nanoparticles, promoting complement activation.

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Metadata

Authors
Vu, V. P., Gifford, G. B., Chen, F., Benasutti, H., Wang, G., Groman, E. V., Scheinman, R., Saba, L., Moghimi, S. M., & Simberg, D.
Venue
Nature Nanotechnology
Published
2019-01-14
Volume
14
Issue
3
Pages
260-268
ISSN
  • 1748-3387 (ISSN-L)
  • 1748-3395
OpenAlex
W2907835634
Cited by
309
References
6
FWCI
8.71
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Immunoglobulin deposition on biomolecule corona determines complement opsonization efficiency of preclinical and clinical nanoparticles. https://app.cochat.ai/papers/10.1038/s41565-018-0344-3
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Vu, V. P., Gifford, G. B., Chen, F., Benasutti, H., Wang, G., Groman, E. V., Scheinman, R., Saba, L., Moghimi, S. M., & Simberg, D. (2019). Immunoglobulin deposition on biomolecule corona determines complement opsonization efficiency of preclinical and clinical nanoparticles. Nature Nanotechnology. https://doi.org/10.1038/s41565-018-0344-3

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