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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
38
pubmed:dateCreated
2004-9-13
pubmed:abstractText
The scavenger receptor expressed by endothelial cells (SREC) was isolated from a human endothelial cell line and consists of two isoforms named SREC-I and -II. Both isoforms have no significant homology to other types of scavenger receptors. They contain 10 repeats of epidermal growth factor-like cysteine-rich motifs in the extracellular domains and have unusually long C-terminal cytoplasmic domains with Ser/Pro-rich regions. The extracellular domain of SREC-I binds modified low density lipoprotein and mediates a homophilic SREC-I/SREC-I or heterophilic SREC-I/SREC-II trans-interaction. However, the significance of large Ser/Pro-rich cytoplasmic domains of SRECs is not clear. Here, we found that when SREC-I was overexpressed in murine fibroblastic L cells, neurite-like outgrowth was induced, indicating that the receptor can lead to changes in cell morphology. The SREC-I-mediated morphological change required the cytoplasmic domain of the protein, and we identified advillin, a member of the gelsolin/villin family of actin regulatory proteins, as a protein binding to this domain. Reduction of advillin expression in L cells by RNAi led to the absence of the described SREC-I-induced morphological changes, indicating that advillin is a prerequisite for the change. Finally, we demonstrated that SREC-I and advillin were co-expressed and interacted with each other in dorsal root ganglion neurons during embryonic development and that overexpression of both SREC-I and advillin in cultured Neuro-2a cells induced long process formation. These results suggest that the interaction of SREC-I and advillin are involved in the development of dorsal root ganglion neurons by inducing the described morphological changes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
17
pubmed:volume
279
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
40084-90
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed-meshheading:15247299-Amino Acid Sequence, pubmed-meshheading:15247299-Animals, pubmed-meshheading:15247299-Cell Adhesion Molecules, pubmed-meshheading:15247299-Cell Size, pubmed-meshheading:15247299-Cells, Cultured, pubmed-meshheading:15247299-Cytoplasm, pubmed-meshheading:15247299-Ganglia, Spinal, pubmed-meshheading:15247299-Gelsolin, pubmed-meshheading:15247299-Mice, pubmed-meshheading:15247299-Microfilament Proteins, pubmed-meshheading:15247299-Molecular Sequence Data, pubmed-meshheading:15247299-Neurites, pubmed-meshheading:15247299-Neurons, pubmed-meshheading:15247299-Protein Structure, Tertiary, pubmed-meshheading:15247299-Receptors, LDL, pubmed-meshheading:15247299-Receptors, Scavenger, pubmed-meshheading:15247299-Scavenger Receptors, Class F, pubmed-meshheading:15247299-Transfection
pubmed:year
2004
pubmed:articleTitle
Type F scavenger receptor SREC-I interacts with advillin, a member of the gelsolin/villin family, and induces neurite-like outgrowth.
pubmed:affiliation
Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
pubmed:publicationType
Journal Article