Distinct gene expression profiles characterize cellular phenotypes of follicle-associated epithelium and M cells

Koji Hase, Sayaka Ohshima, Kazuya Kawano, Noriko Hashimoto, Kenji Matsumoto, Hirohisa Saito, Hiroshi Ohno

研究成果: Article査読

68 被引用数 (Scopus)

抄録

Follicle-associated epithelium (FAE) covering Peyer's patches contains specialized epithelial M cells that take up ingested macromolecules and microorganisms from the lumen of the gut by transcytosis. Using high-density oligonucleotide microarrays, we analyzed the gene expression profiles of FAE and M cells in order to characterize their cellular phenotypes. The microarray data revealed that, among approximately 14,000 genes, 409 were expressed in FAE at twofold or higher levels compared to the intestinal epithelial cells (IECs) of the villi. These included genes involved in membrane traffic, host defense and transcriptional regulation, as well as uncharacterized genes. Real-time PCR and in situ hybridization analyses identified three molecules, ubiquitin D (Ub-D), tumor necrosis factor receptor superfamily 12a (TNFRsf12a), and transmembrane 4 superfamily 4 (Tm4sf4), which were predominantly distributed throughout FAE, but were expressed little, if at all, in IECs. By contrast, transcripts of secretory granule neuroendocrine protein 1 (Sgne-1) were scattered in FAE, and were co-localized with Ulex europaeus agglutinin-1 (UEA-1)-positive cells. This clearly suggests that expression of Sgne-1 in the gut is specific to M cells. Such a unique pattern of gene expression distinguishes FAE and M cells from IECs, and may reflect their cellular phenotype(s) associated with specific functional features.

本文言語English
ページ(範囲)127-137
ページ数11
ジャーナルDNA Research
12
2
DOI
出版ステータスPublished - 2005
外部発表はい

ASJC Scopus subject areas

  • 分子生物学
  • 遺伝学

フィンガープリント

「Distinct gene expression profiles characterize cellular phenotypes of follicle-associated epithelium and M cells」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル