Related Experiment Video
Updated: Mar 16, 2026

08:00
Intravital Imaging of Intraepithelial Lymphocytes in Murine Small Intestine
Published on: June 24, 2019
8.8K
Intestinal tuft cells: epithelial sentinels linking luminal cues to the immune system
Mucosal Immunology
|August 25, 2016
Summary
Epithelial tuft cells, once mysterious, are now known to initiate type 2 immune responses. These cells are crucial for managing parasite infections through epithelial and immune cell cooperation.
Area of Science:
- Immunology
- Cell Biology
- Gastroenterology
Background:
- Epithelial tuft cells, identified decades ago, had unknown functions.
- Recent research has elucidated their critical role in initiating immune responses.
Purpose of the Study:
- To review the functions and markers of epithelial tuft cells.
- To integrate tuft cell roles into the current understanding of type 2 immunity.
Main Methods:
- Literature review of recent findings on tuft cell function.
- Analysis of tuft cell markers and their role in immune signaling.
Main Results:
- Tuft cells are essential initiators of type 2 immune responses.
- They facilitate cooperation between epithelial and hematopoietic cells.
Conclusions:
- Epithelial tuft cells are key players in host defense against enteric parasites.
- Their function is central to the paradigm of type 2 immunity.
Related Concept Videos
Renewal of Intestinal Stem Cells
3.5K
The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the crypt– a gland located at the bottom of each villus. ISCs divide asymmetrically to form new stem cells and progenitor daughter cells. The daughter cells are called transit-amplifying (TA) cells which move upwards along the crypt and either differentiate into absorptive cells– the enterocytes or secretory cells– including the...
3.5K
Role Of Notch Signalling In Intestinal Stem Cell Renewal
2.6K
Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
2.6K
Lymphoid Cells and Tissues
3.7K
Lymphoid cells and tissues are integral to the immune system, which is crucial in maintaining our body's defense against harmful pathogens. They form the building blocks of lymphoid organs, which include the spleen, thymus, and lymph nodes.
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
3.7K
Physiology of Enteric Nervous System and Gut Health
1.2K
The gastrointestinal tract, responsible for the digestion and absorption of nutrients, is safeguarded by the intestinal barrier, which consists of secretory, physical, and immune components. At the forefront is the secretory barrier, composed of essential elements such as mucus, gut microbiota, and defense proteins. They collaborate to break down food particles, facilitate nutrient absorption, and maintain optimal gut health. These secretory components ensure the smooth functioning of the...
1.2K
Histology of the Small Intestine
4.5K
The small intestine exhibits a unique histological structure that significantly enhances its function in digestion and nutrient absorption. These structures include circular folds, villi, and various specialized cells that collectively facilitate the digestion of food.
The intestinal lining features transverse folds called circular folds, each housing fingerlike projections known as intestinal villi. These villi are covered by a layer of simple columnar epithelium, also referred to as...
The intestinal lining features transverse folds called circular folds, each housing fingerlike projections known as intestinal villi. These villi are covered by a layer of simple columnar epithelium, also referred to as...
4.5K
Epithelial Tissues and Their Functions
42.9K
Epithelial tissues are large sheets of cells covering all of the surfaces of the body. These surfaces can be internal or external, for example, skin, airways, the digestive tract, the urinary system, and the reproductive system. Hollow organs and body cavities that do not connect to the body's exterior, including blood vessels and serous membranes, are lined by epithelial tissue known as the endothelium.
Epithelial tissues provide the body's first line of protection from physical,...
Epithelial tissues provide the body's first line of protection from physical,...
42.9K

