The regulation of MUC2, a major goblet cell mucin gene, was examined by constructing transgenic mice containing bases -2864 to +17 of the human MUC25'-flanking region fused into the 5'-untranslated region of a human growth hormone (hGH) reporter gene. Four of eight transgenic lines expressed reporter. hGH message expression was highest in the distal small intestine, with only one line expressin...

OBJECTIVE To evaluate the association between mucin 2 (MUC2) expression and clinicopathological characters of colorectal cancer. METHODS A literature search was performed on December 31, 2010 according to defined selection criteria. We evaluated the correlation between MUC2 (detected by immunohistochemistry) and clinicopathological characters of colorectal cancer. According to the tumor histo...

Mucins secreted by intestinal goblet cells are considered an important component of innate defense in a number of enteric infections, including many parasitic infections, but also likely provide protection against the gut microbiota. Nod proteins are intracellular receptors that play key roles in innate immune response and inflammation. Here, we investigated the role of Nod proteins in regulati...

MUCs are glycoproteins with various roles in homeostasis and carcinogenesis. Among other actions, MUC1 may inhibit cell-cell and cell-stroma interactions and function as a signal transducer, participating in cancer progression. In contrast, MUC2 is normally found only in goblet cells, where it contributes to the protective barrier function of these cells. Recently, a tumour suppressor role has ...

BACKGROUND Aberrations in expression of mucin glycoproteins have been observed during malignant transformation of human ovarian epithelium. To date, several secretory mucin genes designated the MUC gene family have been identified, of which MUC1 encodes a mammary-type and MUC2 an intestinal-type epithelial mucin. However, information on the expression and potential value of MUC1 and MUC2 mucins...

Little is known about the biosynthesis of mucin molecules in humans. Our aim was to examine the mucin biosynthesis (MUC2-6) along the longitudinal axis of the healthy human gastrointestinal tract. Biopsies of human stomach and small and large intestine were metabolically labeled with 35S-labeled amino acids, [35S]sulfate, or[3H]galactose, immunoprecipitated with antibodies against MUC2-6, and a...

Although CDX2-mediated intestinal metaplasia and its association with gastric and esophageal carcinoma have been well described, its function in extrahepatic bile duct (EBD) carcinoma remains unclear. CDX2 and MUC2 expression were examined in 193 EBD carcinomas, and observed in 37.3% and 42.0%, respectively. Both CDX2 and MUC2 were observed in 27.4%. CDX2 (P<.001) and MUC2 (P<.001) were correla...

There is a need for new prognostic parameters that could add insights into the aggressiveness of tumors. Because the expression of two well-characterized mucin antigens, MUC1 and MUC2, in colorectal adenocarcinomas (CRCs) has been correlated with the aggressiveness of CRCs, we evaluated the prognostic value of the expression of MUC1 and MUC2 in CRCs collected from African-American and Caucasian...

BACKGROUND The colonic mucus layer plays a critical role in intestinal homeostasis by limiting contact between luminal bacteria and the mucosal immune system. A defective mucus barrier in animal models allows bacterial contact with the intestinal epithelium and results in spontaneous colitis. A defective mucus barrier is also a key feature of active ulcerative colitis (UC). Alterations in the i...

Serum amyloid A (SAA) is the major acute-phase protein and a precursor of amyloid A (AA) in AA amyloidosis in humans and animals. SAA isoforms have been identified in a wide variety of animals, such as SAA1, SAA2, SAA3, and SAA4 in mouse. Although the biological functions of SAA isoforms are not completely understood, recent studies have suggested that SAA3 plays a role in host defense. Express...