| The regulation of sperm motility by a novel hyaluronan receptor. | |
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MedLine Citation:
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PMID: 7513657 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To determine if a novel receptor for hyaluronan, termed RHAMM, is responsible for the previously observed increase in sperm locomotion in response to hyaluronan and to assess whether expression of the RHAMM protein is involved in sperm motility. DESIGN: The RHAMM protein was localized on human sperm by immunofluorescence of fixed cells, fluorescence-activated cell sorter (FACS) of cell surface phenotype, and Western transblot analysis of cell proteins. The effect of monospecific antibodies on sperm motility was examined using computer-assisted image analysis. Results of motility studies were assessed statistically with analysis of variance. SETTING: Samples were collected from donors from the University of Manitoba donor insemination program. SUBJECTS: Semen was collected twice from four participants and a total of 10,000 sperm per sample were evaluated. RESULTS: A hyaluronan receptor, RHAMM, was localized by immunofluorescence along the tail, the midpiece, and the head of sperm. Positive staining obtained with FACS analysis indicated that RHAMM occurred on the surface of sperm, whereas immunoblot analysis of sperm cell lysates revealed RHAMM proteins of MWE 58 and 64 kd, consistent with the size of RHAMM localized from fibroblasts. A polyclonal antibody specific to a peptide encoded in the fibroblast RHAMM complementary DNA significantly decreased the motility of sperm. Analysis of this inhibition is consistent with an effect of the antibody on flagellar function. CONCLUSIONS: The presence of RHAMM on sperm surfaces and the ability of monospecific antibodies to inhibit sperm motility suggest an important role for this novel glycoprotein in sperm motility. |
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Authors:
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B S Kornovski; J McCoshen; J Kredentser; E Turley |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Fertility and sterility Volume: 61 ISSN: 0015-0282 ISO Abbreviation: Fertil. Steril. Publication Date: 1994 May |
Date Detail:
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Created Date: 1994-06-03 Completed Date: 1994-06-03 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0372772 Medline TA: Fertil Steril Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 935-40 Citation Subset: IM |
Affiliation:
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Department of Pediatrics, Manitoba Institute of Cell Biology, Winnipeg, Canada. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Analysis of Variance Antigens, CD44 Blotting, Western Carrier Proteins / analysis, physiology* Flow Cytometry Fluorescent Antibody Technique Humans Image Processing, Computer-Assisted Male Phenotype Receptors, Cell Surface / analysis, physiology* Receptors, Lymphocyte Homing / analysis, physiology* Sperm Motility / physiology* Spermatozoa / chemistry, physiology, ultrastructure |
| Chemical | |
Reg. No./Substance:
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0/Antigens, CD44; 0/Carrier Proteins; 0/Receptors, Cell Surface; 0/Receptors, Lymphocyte Homing |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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