Related Experiment Video
Updated: Jul 8, 2026
05:51
Observing Islet Function and Islet-Immune Cell Interactions in Live Pancreatic Tissue Slices
Published on: April 12, 2021
New advances in pancreatic cell physiology and pathophysiology
Frank Ulrich Weiss1, Walter Halangk, Markus M Lerch
1Department of Internal Medicine A, Ernst Moritz Arnd-University, Friedrich-Loeffler-STr. 23a, D17475 Greifswald, Germany.
Best Practice & Research. Clinical Gastroenterology
|January 22, 2008
Summary
This review explores the early physiological mechanisms of exocrine pancreatic disorders, focusing on pancreatitis. Understanding these processes is crucial for developing effective treatments for this common and potentially lethal disease.
Area of Science:
- Gastroenterology
- Cell Biology
- Physiology
Background:
- The mammalian pancreas, a mixed gland with exocrine and endocrine functions, develops from dorsal and ventral buds.
- The exocrine pancreas comprises acinar and ductal cells, secreting digestive enzymes, while endocrine cells form islets of Langerhans regulating glucose homeostasis.
- Pancreatitis, a common exocrine pancreatic disorder, has limited treatment options due to incomplete understanding of its pathophysiology.
Purpose of the Study:
- To summarize recent advancements in understanding the physiological mechanisms underlying early exocrine pancreatic disease processes.
- To provide insights into the pathophysiology of pancreatitis for improved therapeutic strategy development.
Main Methods:
- This review synthesizes current research on pancreatic physiology and early disease mechanisms.
- Focuses on the physiological processes involved in the initial stages of exocrine pancreatic disorders.
Main Results:
- Recent research has shed light on the complex physiological events initiating exocrine pancreatic dysfunction.
- Advances in understanding cellular and molecular pathways involved in early pancreatitis pathogenesis are highlighted.
Conclusions:
- A deeper comprehension of exocrine pancreatic physiology is essential for addressing pancreatitis.
- Further research into these early disease mechanisms promises to unlock new therapeutic avenues for pancreatitis.
Related Concept Videos
01:21Acute Pancreatitis II: Pathophysiology
The pathophysiology of acute pancreatitis centers on injury to pancreatic acinar cells, which initiates a cascade of harmful intracellular events.This injury leads to premature activation of trypsinogen to trypsin in the pancreas. Trypsin then activates other digestive enzymes, such as chymotrypsin, elastase, and phospholipase A2, which begin breaking down pancreatic tissue. The resulting autodigestion causes local inflammation, tissue swelling, hemorrhage, and fat necrosis.Injured acinar cells...
01:21Chronic Pancreatitis II: Pathophysiology
Chronic pancreatitis is a progressive and irreversible inflammation of the pancreas, most often caused by long-term alcohol abuse, but it can also be related to ductal obstruction, smoking, or genetic factors.Chronic pancreatitis occurs when the pancreas is repeatedly exposed to harmful agents like alcohol, smoking, ductal obstruction, or genetic predisposition. These factors lead to the release of toxic metabolites and inflammatory cytokines, sustaining chronic inflammation in the pancreatic...
01:16Cells and Secretions of the Pancreas
The pancreas, a vital organ within the abdominal cavity, plays dual roles in the digestive and endocrine systems, collaborating with exocrine and endocrine cells to maintain optimal digestion and blood sugar levels.
Exocrine function is carried out by acinar cells, organized into clusters known as acini. These cells contribute to digestion by releasing substantial quantities of enzyme-rich, alkaline digestive juices.
Concurrently, the dispersed clusters of endocrine cells throughout the...
Exocrine function is carried out by acinar cells, organized into clusters known as acini. These cells contribute to digestion by releasing substantial quantities of enzyme-rich, alkaline digestive juices.
Concurrently, the dispersed clusters of endocrine cells throughout the...
01:25Chronic Pancreatitis I: Introduction
Chronic pancreatitis is a long-standing, relapsing inflammation of the pancreas, characterized by irreversible damage to the gland. It results in progressive destruction of the pancreatic parenchyma, fibrosis, and eventual loss of both exocrine and endocrine function. The disease may evolve gradually after multiple episodes of acute pancreatitis or develop independently.EtiologyChronic pancreatitis can arise from a variety of causes:Alcohol use is the leading cause, accounting for 70–80% of...
01:24Chronic Pancreatitis I: Introduction
The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
01:27Glucose Homeostasis: Pancreatic Islets and Insulin Secretion
The pancreatic islets comprising only 1%-2% of the volume are highly vascularized and innervated mini-organs. They contain five endocrine cell types, including β cells that secrete insulin, which is synthesized as a single polypeptide chain, preproinsulin, processed to proinsulin, and finally to insulin and C-peptide. This process is complex and regulated, involving the Golgi complex, the endoplasmic reticulum, and the secretory granules of the β cell.
Insulin and C-peptide are co-secreted in...
Insulin and C-peptide are co-secreted in...