Related Experiment Video
Updated: Feb 2, 2026

03:22
Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia
Published on: January 27, 2018
15.6K
Immune Privilege Collapse and Alopecia Development: Is Stress a Factor
Soraya Azzawi1, Lauren R Penzi2, Maryanne M Senna1,2
1Harvard Medical School, Boston, MA, USA.
Skin Appendage Disorders
|November 10, 2018
Summary
This review explores how the loss of immune privilege in hair follicles contributes to autoimmune hair loss disorders. It examines the role of neurogenic stress in triggering this immune collapse.
Area of Science:
- Dermatology
- Immunology
- Neuroscience
Background:
- Hair follicles are immune privileged sites crucial for mammalian features and communication.
- Autoimmune hair loss disorders like alopecia areata and lichen planopilaris are linked to immune system dysfunction.
- Understanding the mechanisms behind immune privilege collapse is vital for addressing hair loss.
Purpose of the Study:
- To review the current literature on immune privilege collapse in hair follicles.
- To elucidate the mechanisms underlying the loss of immune privilege.
- To investigate the role of neurogenic stress in initiating autoimmune hair loss.
Main Methods:
- Comprehensive literature appraisal of existing studies.
- Analysis of mechanisms contributing to immune privilege breakdown.
- Examination of neurogenic stress as a potential trigger.
Main Results:
- Evidence suggests immune privilege collapse is a key factor in autoimmune hair loss pathogenesis.
- Neurogenic stress emerges as a significant factor in triggering this collapse.
- The review synthesizes current knowledge on these complex interactions.
Conclusions:
- The collapse of immune privilege in hair follicles is central to autoimmune hair loss.
- Neurogenic stress plays a critical role in initiating the pathological processes.
- Further research into these mechanisms could lead to novel therapeutic strategies for hair loss disorders.
More Related Videos
Related Concept Videos
What is the Immune System?
128.1K
Overview
128.1K
Transcription Factors
82.7K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
82.7K
Responses to Salt Stress
14.6K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
14.6K
Humoral Immune Responses
83.9K
Overview
83.9K
Responses to Heat and Cold Stress
14.8K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
14.8K
Factors Affecting Solubility
37.1K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
37.1K

