ArticleInternational journal of clinical and experimental pathology2013
Human fetal ductal plate revisited: II. MUC1, MUC5AC, and MUC6 are expressed in human fetal ductal plate and MUC1 is expressed also in remodeling ductal plate, remodeled ductal plate and mature bile ducts of human fetal livers.
Article in International journal of clinical and experimental pathology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 10 citations in OpenAlex.
- Two-stage Cox-nnet: biologically interpretable neural-network model for prognosis prediction and its application in liver cancer survival using histopathology and transcriptomic data.NAR genomics and bioinformatics · 2021Article
- Mucins: the Old, the New and the Promising Factors in Hepatobiliary Carcinogenesis.International journal of molecular sciences · 2019Review
- A Retrospective Case Control Study of Ductal Plate Malformation-like Features in Consecutive 200 Autopsies.Pathology oncology research : POR · 2018Article
- Human ductal plate and its derivatives express antigens of cholangiocellular, hepatocellular, hepatic stellate/progenitor cell, stem cell, and neuroendocrine lineages, and proliferative antigens.Experimental biology and medicine (Maywood, N.J.) · 2017Article
- Hepatobiliary cystadenocarcinoma of the liver with features of ductal plate malformations.Journal of gastrointestinal cancer · 2015Article
- Imaging in ductal plate malformations.The Indian journal of radiology & imagingArticle
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Authors and funding
1 author at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mucins are high-molecular-weight glycoproteins, which are heavily decorated with a large number of O-linked oligosaccharides and a few N-glycan chains, linked to a protein backbone. The protein backbone is called mucin core protein or MUC apomucins. MUC expression is down-regulated or up-regulated in malignant neoplasms. These alterations of MUC apomucins, which are regulated by MUC genes, are associated with carcinogenesis and malignant potentials of cancers. MUC expression during human fetal intrahepatic bile duct (IBD) development has been studied only once, and there has been only one histochemical study of mucins in human fetal IBD development. The author herein immunohistochemically investigated the expression of MUC1, MUC2, MUC5AC, and MUC6, and histochemically investigated carbohydrate component of mucins in human fetal cholangiocytes with the use of 32 human fetal livers of various gestational ages. MUC1 is a transmembranous apomucin, while MUC2, MUC5AC and MUC6 are secretory apomucins. Under normal conditions, MUC1 (polymorphic epithelial mucin) is present mainly in the pancreatic epithelium. MUC2 (goblet cell mucin) is mainly located in goblet cells. MUC5AC (gastric foveolar mucin) and MUC6 (pyloric gland-type mucin) are located in the stomach. In the present study, the processes of the human IBD development could be categorized into four stages; ductal plate (DP), remodeling DP, remodeled DP, and mature IBDs. The author identified that MUC1 was present in ductal plate (DP), remodeling DP, remodeled DP, and mature IBD in human fetal livers. MUC5AC and MUC6 were present only in the DP. MUC5AC and MUC6 were absent in remodeling DP, remodeled DP, and mature IBD in human fetal livers. No expression of MUC2 was seen throughout the fetal IBD development. Histochemically, no carbohydrate component of mucins were seen in the remodeling DP and remodeled DP, while neutral and acidic mucins (carboxylated and sulfated mucins) were seen in mature IBD in human fetal livers. The DP showed frequently neutral mucins and less frequently acidic mucins (carboxylated and sulfated mucins residues). These findings suggest that the DP cells have MUC1, MUC5AC and MUC6, and that remodeling DP, remodeled DP, and mature IBDs have MUC1, but not MUC5AC and MUC6. The presence of neutral and acidic carbohydrates in DP suggests that these carbohydrates of mucin are attached to the MUC5AC and MUC6 mucin core proteins. Although the implications are unclear, the expression of these MUC apomucins and their carbohydrate residues are associated with normal development of IBDs in human fetal livers.
Indexed as
Identifiers
23573304PMC3606847W166623502What OpenQuestion holds
Registered trials
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