Intestinal Metaplasia
Intestinal Metaplasia - Related Videos
03:21
Acinar-to-Ductal Metaplasia Induction: A Method to Study Acinar Cell to Ductal Cell Differentiation in 3D Ex Vivo Culture
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2023
This video describes the technique of differentiating pancreatic acinar cells to ductal cells in ex vivo 3D culture. This helps to understand the mechanisms regulating the acinar-to-ductal metaplasia (ADM), a key process in the early development of pancreatic cancer.
01:24
Cellular Adaptation IV: Dysplasia and Metaplasia
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2026
DysplasiaDysplasia refers to abnormal changes in the size, shape, and organization of mature cells, characterized by pleomorphism, nuclear abnormalities, and increased mitotic activity. It commonly affects epithelial tissues, including the cervix, gastrointestinal tract, respiratory mucosa, and endometrium. Although it may occur alongside hyperplasia, dysplasia is not a true adaptive response but a preneoplastic change with potential to progress to cancer.When confined above the basement...
10:58
A Protocol for Lentiviral Transduction and Downstream Analysis of Intestinal Organoids
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Cited by 81 •
2015
In this video protocol we give a step by step explanation of lentiviral transduction in organoids of primary intestinal epithelium and of processing and downstream analysis of these cultures by quantitative RT-PCR, RNA-microarray and immunohistochemistry.
04:37
Intestinal Crypts Isolation: A Method to Isolate Whole Crypts from Small Intestine of Murine Model
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2023
In this video, we demonstrate a technique to isolate whole crypts from a mouse’s small intestine. The isolated whole crypts can be used to propagate long-lived and self-renewing 3D organoids in vitro.
17:15
Catheterization of Intestinal Loops in Ruminants
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Cited by 4 •
2009
We describe a novel surgical method for catheterizing 'intestinal loops' within the ileum of sheep. Once animals have recovered from surgery and have cleared antibiotics and analgesics, multiple treatments can be deposited directly in loops via the catheters.
FAQs
Chronic injury and inflammation place persistent stress on the epithelial lining, prompting altered differentiation programs. Instead of maintaining the characteristics of the native epithelium, cells develop intestinal-type features. This response illustrates epithelial plasticity, the capacity of tissue cells to change their differentiated characteristics, while also showing how prolonged mucosal damage can drive abnormal tissue remodeling.
Goblet cells provide a recognizable intestinal feature within an epithelium that has undergone altered differentiation. Their presence, together with other intestinal cell types, helps histological analysis identify the nature of the epithelial change. Examining these cellular features allows investigators to characterize mucosal injury more precisely rather than relying only on the visible location of the lesion.
Intestinal metaplasia is clinically and biologically important because it can indicate a tissue environment in which progression toward dysplasia and adenocarcinoma must be assessed. The relationship reflects the combined effects of persistent inflammation, cellular plasticity, and abnormal remodeling. Identifying the metaplastic change therefore supports evaluation of possible cancer-development pathways without establishing that malignant progression has occurred.
A tissue biopsy provides material for histological analysis of the affected mucosa. Investigators examine the epithelial lining for intestinal-type cellular features, including goblet cells and other intestinal cell types replacing characteristics of the native epithelium. This microscopic assessment helps characterize the extent and nature of mucosal damage and supplies evidence for evaluating progression risk.
Histological analysis connects cellular appearance with the underlying process of tissue injury and remodeling. By identifying intestinal-type features in a biopsy, researchers and clinicians can document the epithelial response to chronic stress, characterize mucosal damage, and assess whether findings warrant clinical surveillance. The approach also supports biological research into how altered differentiation relates to cancer development.
The stomach and esophagus are important sites for evaluating this change because both can develop intestinal-type epithelial features after chronic injury or inflammation. Comparing these locations helps biology and pathology examine how different native linings respond to persistent stress. Findings from either site can inform assessment of mucosal damage, progression risk, and abnormal remodeling.