ID | 112035 |
タイトル別表記 | 膵β細胞と膵α細胞の分化表現型はホメオティック遺伝子発現の差異と関連する
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著者 |
水澤, 典子
Department of Pharmacology, School of Dentistry, The University of Tokushima|Division of Genetic Information, Institute for Genome Research, The University of Tokushima
徳島大学 教育研究者総覧
KAKEN研究者をさがす
Hasegawa, Tomoko
The University of Tokushima
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キーワード | Pancreatic islet
β-cell
α-cell
Homeotic gene
Hox gene
Microarray
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資料タイプ |
学位論文
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抄録 | To identify the genes that determine differentiation phenotypes, we compared gene expression of pancreatic islet β- and α-cells, which are derived from the common precursor and secrete insulin and glucagon, respectively. The expression levels of homeotic genes including Hox genes known to determine region specificity in the antero-posterior (AP) body axis, tissue-specific homeobox genes, and other 8,734 genes were compared in a β- and α-cell line of MIN6 and αTC1.6. The expression of homeotic genes were surveyed with reverse transcription-polymerase chain reaction (RT-PCR) using degenerate primers corresponding to invariant amino acid sequences within the homeodomain and subsequently with specific primers. Expression of Hoxc6, Hoxc9, Hoxc10, Pdx1, Cdx2, Gbx2, Pax4, and Hlxb9 genes in MIN6 was higher than those in αTC1.6, while expression of Hoxa2, Hoxa3, Hoxa5, Hoxa6, Hoxa7, Hoxa9, Hoxa10, Hoxa13, Hoxb3, Hoxb5, Hoxb6, Hoxb13, Hoxb8, and Brain4 genes in αTC1.6 was higher than those in MIN6. Out of 8,734 mouse genes screened with high-density mouse cDNA microarrays for MIN6- and αTC1.6-derived cDNA, 58 and 25 genes were differentially over- and under-expressed in MIN6, respectively. GLUTag, which is derived from a large bowel tumor and expresses the proglucagon gene, showed a comparatively similar expression profile to that of αTC1.6 in both homeotic and other genes analyzed in cDNA microarray.
Our results are consistent with the interpretation that not only the tissue-specific homeotic genes, but also Hox genes are related to differentiation phenotypes of pancreatic β- and α-cells rather than their regional specification of the body in vertebrates. |
掲載誌名 |
Gene
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ISSN | 03781119
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cat書誌ID | AA00654385
AA11529840
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出版者 | Elsevier
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巻 | 331
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開始ページ | 53
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終了ページ | 63
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発行日 | 2004-03-28
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備考 | 論文本文の公開
本論文は,著者Noriko Mizusawaの学位論文として提出され,学位審査・授与の対象となっている。 |
EDB ID | |
出版社版DOI | |
出版社版URL | |
フルテキストファイル | |
言語 |
eng
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著者版フラグ |
博士論文全文を含む
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文科省報告番号 | 甲第1611号
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学位記番号 | 甲医第794号
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学位授与年月日 | 2005-03-25
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学位名 |
博士(医学)
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学位授与機関 |
徳島大学
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部局 |
歯学系
先端酵素学研究所
病院
医学系
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