| Novel human alpha-fetoprotein mRNA isoform lacking exon 1 identified in ovarian yolk sac tumor. | |
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MedLine Citation:
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PMID: 15914041 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: Alpha-fetoprotein (AFP) is a major fetal serum protein, the biologic role of which has not been not fully elucidated. Recently, existence of a novel AFP mRNA isoform (del.1 AFP mRNA isoform), which is transcribed from the intron A (the intron between exons 1 and 2), has been reported in murine yolk sac and fetal liver. In the present study, we intended to identify the human homologue of the murine AFP mRNA isoform in the yolk sac tumor. METHODS: To investigate the existence of the mRNA isoform (which we termed the "AFP-C mRNA isoform"), reverse transcription-polymerase chain reaction (RT-PCR) was used. Moreover, the expression analysis of the AFP-C cDNA isoform using the AFP-negative human cell line was carried out. RESULTS: RT-PCR revealed the existence of the AFP-C mRNA isoform in the yolk sac tumor and human hepatocellular carcinoma cells. The expression analysis clarified that the molecular size of the AFP-C was approximately 65 kd, and that the protein was not secreted, in contrast to the traditional AFP. CONCLUSION: From these results, the existence of the AFP-C mRNA isoform has been demonstrated for the first time in humans. The AFP-C located in cytoplasm possibly plays physiologic/pathogenic roles distinct from those of the traditional AFP in the yolk sac tumor and hepatocellular carcinoma. |
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Authors:
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Hiroko Fukasawa; Hideki Iwamoto; Shuji Hirata; Tomoko Shoda; Sadaki Yokota; Shinzo Nishi; Kazuhiko Hoshi |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of the Society for Gynecologic Investigation Volume: 12 ISSN: 1556-7117 ISO Abbreviation: J. Soc. Gynecol. Investig. Publication Date: 2005 Sep |
Date Detail:
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Created Date: 2005-09-05 Completed Date: 2006-03-10 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9433806 Medline TA: J Soc Gynecol Investig Country: United States |
Other Details:
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Languages: eng Pagination: 456-62 Citation Subset: IM |
Affiliation:
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Department of Obstetrics and Gynecology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Nakakoma, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adenocarcinoma
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chemistry*,
pathology Cytoplasm Endodermal Sinus Tumor / chemistry*, pathology Female Humans Ovarian Neoplasms / chemistry*, pathology Protein Isoforms RNA, Messenger / analysis Reverse Transcriptase Polymerase Chain Reaction Tumor Cells, Cultured alpha-Fetoproteins / analysis, chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Protein Isoforms; 0/RNA, Messenger; 0/alpha-Fetoproteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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