Related Experiment Video
Updated: Nov 11, 2025

12:33
A Method for Mouse Pancreatic Islet Isolation and Intracellular cAMP Determination
Published on: June 25, 2014
65.7K
Why pancreatic islets should be regarded and regulated like organs
1Section on Islet Cell and Regenerative Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA.
Summary
Pancreatic islets are organs, not just cells. Current regulations unfairly restrict alloislet transplants, hindering a vital treatment in the US despite its scientific advancements.
Area of Science:
- Endocrinology
- Transplantation immunology
- Regenerative medicine
Background:
- Pancreatic islets are complex micro-organs crucial for insulin production.
- Current regulations differentiate between autologous and alloislet transplantation.
- This distinction impacts the feasibility and accessibility of islet transplantation.
Purpose of the Study:
- To argue for a unified regulatory approach for pancreatic islet transplantation.
- To highlight the scientific basis for considering islets as organs.
Main Methods:
- Review of existing scientific literature on islet structure and function.
- Analysis of current regulatory policies for cell and organ transplantation.
- Comparative assessment of autologous and alloislet transplantation protocols.
Main Results:
- Pancreatic islets exhibit organ-level complexity in structure and function.
- Current regulations create illogical disparities in transplant protocols.
- Restrictive policies for alloislet transplantation impede clinical application in the US.
Conclusions:
- Pancreatic islets should be consistently regulated as organs, regardless of source (autologous or allogeneic).
- Revising regulations is crucial to facilitate alloislet transplantation and leverage advancements in the field.
- Addressing regulatory barriers is essential for the future of diabetes treatment through islet transplantation.
Related Concept Videos
Glucose Homeostasis: Pancreatic Islets and Insulin Secretion
1.7K
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...
Insulin and C-peptide are...
1.7K
Cells and Secretions of the Pancreas
3.6K
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...
3.6K
Pancreas
1.5K
The pancreas, an essential organ in the human body, is a pinkish-gray elongated structure located posterior to the stomach. It extends laterally from the duodenum towards the spleen and is firmly bound to the posterior wall of the abdominal cavity. The organ's surface has a lumpy, lobular texture that gives it a unique appearance.
The broad head of the pancreas lies within the loop formed by the duodenum, while its slender body reaches towards the spleen. The tail of the pancreas is short...
The broad head of the pancreas lies within the loop formed by the duodenum, while its slender body reaches towards the spleen. The tail of the pancreas is short...
1.5K
Hormones Regulating Blood Glucose
5.4K
Insulin is released by beta cells of the pancreas when blood glucose levels are high. It facilitates glucose absorption and utilization in insulin-dependent cells with insulin receptors on their plasma membranes. Insulin promotes glucose uptake by increasing the number of glucose transport proteins in the cell membrane, allowing glucose to enter the cell. As a result, glucose utilization and ATP production are enhanced.
In addition to accelerating glucose uptake and utilization, insulin has...
In addition to accelerating glucose uptake and utilization, insulin has...
5.4K
The Endocrine System
919
The endocrine system is an extensive network of glands – organs or tissues in the body that create chemicals that control many bodily functions, that secrete hormones, which are chemical messengers that play essential roles in regulating various bodily functions. These hormones are secreted into the bloodstream and travel throughout the body. They require specific receptors to convey signals to cells possessing these corresponding receptors. This complex signaling mechanism ensures that...
919

