Comprehensive gene expression profiling of Peyer's patch M cells, villous M-like cells, and intestinal epithelial cells.
Separate populations of M cells have been detected in the follicle-associated epithelium of Peyer's patches (PPs) and the villous epithelium of the small intestine, but the traits shared by or distinguishing the two populations have not been characterized. Our separate study has demonstrated that a potent mucosal modulator cholera toxin (CT) can induce lectin Ulex europaeus agglutinin-1 and our newly developed M cell-specific mAb NKM 16-2-4-positive M-like cells in the duodenal villous epithelium. In this study, we determined the gene expression of PP M cells, CT-induced villous M-like cells, and intestinal epithelial cells isolated by a novel approach using FACS. Additional mRNA and protein analyses confirmed the specific expression of glycoprotein 2 and myristoylated alanine-rich C kinase substrate (MARCKS)-like protein by PP M cells but not CT-induced villous M-like cells. Comprehensive gene profiling also suggested that CT-induced villous M-like cells share traits of both PP M cells and intestinal epithelial cells, a finding that is supported by their unique expression of specific chemokines. The genome-wide assessment of gene expression facilitates discovery of M cell-specific molecules and enhances the molecular understanding of M cell immunobiology.
Division of Mucosal Immunology, Graduate School of Frontier Science, The University of Tokyo, Tokyo, Japan.
Kazutaka
K
Terahara
Masato
M
Yoshida
Osamu
O
Igarashi
Tomonori
T
Nochi
Gemilson Soares
GS
Pontes
Koji
K
Hase
Hiroshi
H
Ohno
Shiho
S
Kurokawa
Mio
M
Mejima
Naoko
N
Takayama
Yoshikazu
Y
Yuki
Anson W
AW
Lowe
Hiroshi
H
Kiyono
D000818:Animals; D002148:Calmodulin-Binding Proteins; D002460:Cell Line; D018925:Chemokines / Q000096:biosynthesis / Q000235:genetics / Q000276:immunology; D002772:Cholera Toxin / Q000008:administration & dosage; D004386:Duodenum / Q000737:chemistry / Q000166:cytology* / Q000378:metabolism*; D005434:Flow Cytometry; D058851:GPI-Linked Proteins; D020869:Gene Expression Profiling; D007150:Immunohistochemistry; D007413:Intestinal Mucosa / Q000737:chemistry / Q000166:cytology* / Q000378:metabolism*; D047908:Intracellular Signaling Peptides and Proteins / Q000235:genetics / Q000276:immunology / Q000378:metabolism; D008562:Membrane Glycoproteins / Q000096:biosynthesis / Q000235:genetics / Q000276:immunology; D051379:Mice; D008807:Mice, Inbred BALB C; D008840:Microfilament Proteins; D020411:Oligonucleotide Array Sequence Analysis; D010581:Peyer's Patches / Q000737:chemistry / Q000166:cytology* / Q000378:metabolism*; D051381:Rats
D002148:Calmodulin-Binding Proteins; D018925:Chemokines; D058851:GPI-Linked Proteins; C495998:Gp2 protein, mouse; D047908:Intracellular Signaling Peptides and Proteins; C512945:Marcksl1 protein, mouse; D008562:Membrane Glycoproteins; D008840:Microfilament Proteins; D002772:Cholera Toxin