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Identification of the Hyaluronan Receptor for Endocytosis (HARE)

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Zhou, Bin, Weigel, Janet A., Fauss, LeAnn, Weigel, Paul H.·2000·Journal of Biological Chemistry

Abstract

Rat liver sinusoidal endothelial cells (LECs) express two hyaluronan (HA) receptors, of 175 and 300 kDa, responsible for the endocytic clearance of HA. We have characterized eight monoclonal antibodies (mAbs) raised against the 175-kDa HA receptor partially purified from rat LECs. These mAbs also cross-react with the 300-kDa HA receptor. The 175-kDa HA receptor is a single protein, whereas the 300-kDa species contains three subunits, alpha, beta, and gamma at 260, 230, and 97 kDa, respectively (Zhou, B., Oka, J. A., and Weigel, P. H. (1999) J. Biol. Chem. 274, 33831-33834). The 97-kDa subunit was not recognized by any of the mAbs in Western blots. Based on their cross-reactivity with these mAbs, the 175-, 230-, and 260-kDa proteins appear to be related. Two of the mAbs inhibit (125)I-HA binding and endocytosis by LECs at 37 degrees C. All of these results confirm that the mAbs recognize the bone fide LEC HA receptor. Indirect immunofluoresence shows high protein expression in liver sinusoids, the venous sinuses of the red pulp in spleen, and the medullary sinuses of lymph nodes. Because the tissue distribution for this endocytic HA receptor is not unique to liver, we propose the name HARE (HA receptor for endocytosis).

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Metadata

Authors
Zhou, B., Weigel, J. A., Fauss, L., & Weigel, P. H.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2000-12
Volume
275
Issue
48
Pages
37733-37741
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2061980960
Cited by
265
References
0
FWCI
2.83
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Identification of the Hyaluronan Receptor for Endocytosis (HARE). https://app.cochat.ai/papers/10.1074/jbc.m003030200
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Zhou, B., Weigel, J. A., Fauss, L., & Weigel, P. H. (2000). Identification of the Hyaluronan Receptor for Endocytosis (HARE). Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m003030200

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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