Volume 25, Issue 1 pp. 148-157
Article
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Specific MR imaging of human lymphocytes by monoclonal antibody-guided dextran-magnetite particles

Jeff W. M. Bulte

Jeff W. M. Bulte

Department of Clinical Immunology, Groningen, The Netherlands

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Yke Hoekstra

Yke Hoekstra

Department of Clinical Immunology, Groningen, The Netherlands

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Richard L. Kamman

Richard L. Kamman

Department of Magnetic Resonance, Groningen, The Netherlands

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Richard L. Magin

Richard L. Magin

Department of Neurosurgery, Groningen, The Netherlands

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Andrew G. Webb

Andrew G. Webb

Department of Neurosurgery, Groningen, The Netherlands

Histology and Cell Biology, University of Groningen, Oostersingel 59, Groningen, The Netherlands

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Richard W. Briggs

Richard W. Briggs

Histology and Cell Biology, University of Groningen, Oostersingel 59, Groningen, The Netherlands

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K. Gwan Go

K. Gwan Go

Bioacoustics Research Laboratory, University of Illinois, Urbana, Illinois 61801

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Caesar E. Hulstaert

Caesar E. Hulstaert

Department of Radiology, University of Florida, Gainesville, Florida 32610

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Stefan Miltenyi

Stefan Miltenyi

Miltenyi Biotec GmbH, Moitzfeld 60a, D-5060 Bergisch-Gladhach 1, Germany

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T. Hauw The

T. Hauw The

Department of Clinical Immunology, Groningen, The Netherlands

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Lou De Leij

Lou De Leij

Department of Clinical Immunology, Groningen, The Netherlands

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First published: May 1992
Citations: 122

Abstract

Human lymphocytes were labeled with biotinylated anti-lymphocyte-directed monoclonal antibodies, to which streptavidin and subsequently biotinylated dextran-magnetite particles were coupled. This labeling resulted in a strong and selective negative contrast enhancement of lymphocyte suspensions at 2.0 T, caused predominantly by the specific increase of R2 with a small but significant specific increase of R2. The R1 was found to decrease with increasing field strength. The immunolabeling procedure described here may be used for the selective signal depletion of target cells in MR imaging.

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