Mucin Production
Mucin Production - Related Videos
11:39
Using Unfixed, Frozen Tissues to Study Natural Mucin Distribution
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Cited by 39 •
2012
Unfixed frozen tissue samples embedded in Optimal Cutting Temperature medium (OCT) can be used to study natural distribution and glycosylation of secreted mucus. In this approach tissue processing is minimal and the natural presentation of glycolipids, mucins and glycan-epitopes is preserved. Tissue sections can be analyzed by immunohistochemistry using fluorescence or chromogenic detection.
09:24
Mucin Agarose Gel Electrophoresis: Western Blotting for High-molecular-weight Glycoproteins
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Cited by 32 •
2016
Mucins are high-molecular-weight glycoconjugates, with size ranging from 0.2 to 200 megadalton (MDa). As a result of their size, mucins do not penetrate conventional polyacrylamide gels and require larger pores for separation. We provide a detailed protocol for mucin agarose gel electrophoresis to assess relative quantification and study polymer assembly.
10:10
Robotic Duodenum-preserving Total Pancreatic Head Resection for Intraductal Papillary Mucinous Neoplasms
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2026
This protocol presents robotic duodenum-preserving total pancreatic head resection (R-DPPHRt) for intraductal papillary mucinous neoplasms (IPMNs). A video demonstrates the technique in a patient with main duct-IPMN, highlighting its feasibility as a minimally invasive, organ-preserving alternative to pancreaticoduodenectomy.
08:51
Profiling of Permethylated Mucin O-glycans Using Matrix-assisted Laser Desorption/Ionization Time-of-flight Mass Spectrometry
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2025
Here, we present a detailed protocol for the release of O-glycans from mucins, and the subsequent desalting, permethylation, and analysis using MALDI-TOF mass spectrometry.
11:42
Lentivirus Production
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Cited by 43 •
2009
To make lentiviruses, DNA vectors are transfected into human 293 cells. After harvest and concentrating the supernatant, virus titer is determined by fluorescence expression with a flow cytometer.
FAQs
Glycosylation gives mucin proteins extensive carbohydrate modification as they pass through the endoplasmic reticulum and Golgi apparatus. This processing is a central maturation step before the molecules are packaged for secretion. Because released mucins become hydrated, examining glycosylation helps connect intracellular protein processing with the protective and lubricating properties of the mucus layer.
After mucin proteins undergo processing in the endoplasmic reticulum and Golgi apparatus, the cell packages them into secretory granules. These storage compartments organize the material before exocytosis, the process in which vesicles fuse with the cell membrane and release their contents. This sequence links intracellular trafficking with the delivery of mucins to tissue surfaces.
Hydration allows released mucins to form a viscoelastic material, meaning the mucus layer combines flow properties with resistance to deformation. That physical behavior supports several functions at once: trapping particles and microbes, lubricating tissue surfaces, and regulating contact between epithelial tissues and their surrounding environment. The degree of hydration therefore influences how effectively the barrier performs these roles.
Goblet cells are specialized epithelial cells that synthesize and secrete mucins, alongside other secretory cell types. Their activity contributes to the formation and maintenance of mucus at tissue surfaces. Studying these cells allows biologists to connect cellular secretion, granule release, and epithelial barrier function rather than considering mucus only as a material outside the tissue.
The respiratory, gastrointestinal, and reproductive tracts provide important biological contexts because each contains epithelial surfaces that require protection, lubrication, and controlled interaction with the environment. Comparing these tissues helps researchers examine how the same general secretory process supports different barrier locations and how altered mucus behavior may relate to local disease processes.
Mucus function depends not only on how much material is produced but also on its composition. Abnormal quantity or composition can be associated with inflammation, infection, and airway obstruction, making both variables relevant when investigating tissue dysfunction. Considering them together helps researchers relate changes in mucin biology to altered barrier performance and disease-related outcomes.
Investigating mucin production can clarify how epithelial barrier function changes during inflammation or infection and how excessive or altered mucus may contribute to airway obstruction. It also provides a way to connect cellular events, such as glycosylation and exocytosis, with tissue-level consequences. This biology is therefore relevant to both normal protection and disease-associated disruption of epithelial surfaces.