RRC ID 71651
著者 Miyagawa Y, Ohguro H, Odagiri H, Maruyama I, Maeda T, Maeda A, Sasaki M, Nakazawa M.
タイトル Aberrantly expressed recoverin is functionally associated with G-protein-coupled receptor kinases in cancer cell lines.
ジャーナル Biochem Biophys Res Commun
Abstract Cancer-associated retinopathy (CAR) is an ocular manifestation of a paraneoplastic syndrome whereby immunological reactions toward recoverin (Rec), a retina-specific Ca(2+) binding protein, and its aberrant expression in tumor cells lead to the retinal degeneration. To elucidate functional roles of the aberrantly expression in cancer cells, we performed immunoprecipitation using anti-human Rec mAb. We observed co-precipitation of G-protein-coupled receptor kinases (GRKs) and caveolin-1 with Rec from cell lysates of 293 or SSTW cells. Immunocytochemistry revealed that immunoreactivities toward Rec within the cancer cells were almost identical to those toward GRKs and caveolin-1. The present data strongly suggest that aberrantly expressed Rec should be involved in the GRK-dependent cellular regulation in cancer cells.
巻・号 300(3)
ページ 669-73
公開日 2003-1-17
DOI 10.1016/s0006-291x(02)02888-7
PII S0006291X02028887
PMID 12507501
MeSH Antibodies, Monoclonal / pharmacology Calcium-Binding Proteins / antagonists & inhibitors Calcium-Binding Proteins / metabolism* Caveolin 1 Caveolins / metabolism Cell Line Cyclic AMP-Dependent Protein Kinases / metabolism* Eye Proteins* G-Protein-Coupled Receptor Kinase 2 G-Protein-Coupled Receptor Kinase 5 G-Protein-Coupled Receptor Kinases GTP-Binding Proteins / metabolism Hippocalcin Humans Immunohistochemistry Kidney / cytology Kidney / metabolism Lipoproteins* Nerve Tissue Proteins* Precipitin Tests Protein Binding Protein Serine-Threonine Kinases / metabolism* Recoverin Stomach Neoplasms / metabolism* Stomach Neoplasms / pathology Tumor Cells, Cultured beta-Adrenergic Receptor Kinases
IF 2.985
リソース情報
ヒト・動物細胞 293(RCB1637)