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Glossary Immune Cells

specialized cells that defend the body against infections

Immune cells, also known as immune system cells or immune response cells, are specialized cells that play a crucial role in defending the body against infections, diseases, and foreign invaders. These cells include various types such as lymphocytes (T cells and B cells), macrophages, dendritic cells, and neutrophils, each with specific functions like identifying pathogens, producing antibodies, and destroying infected cells.

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Research

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research Dermal T cell immunity and key regulatory signaling pathways: Implications in immune-mediated alopecia and hair regeneration

1 citations , January 2025 in “Genes & Diseases”

This review highlights that T cells are crucial in regulating hair follicle regeneration and their disruption can lead to alopecia, providing insights into hair disorders related to T cell immune balance and hair follicle regeneration.

research Dandruff lesional scalp skin exhibits epidermal T cell infiltration and a weakened hair follicle immune privilege

March 2024 in “International Journal of Cosmetic Science”

This study observed that dandruff-affected scalp skin has increased T-cell infiltration in the epidermis and a reduction in the hair follicle's physiological immune privilege, particularly in the suprabulbar outer root sheath area, indicating a distinct immune microenvironment compared to healthy scalp.

research Regulatory T cells in skin mediate immune privilege of the hair follicle stem cell niche

21 citations , January 2024 in “Science Immunology”

This study developed a technique to limit genetic recombination to regulatory T cells to investigate whether self-tolerance is maintained in non-lymphoid tissues, an area previously not well understood.

research 051 γδ T cells as novel players in alopecia areata pathobiology: Vδ1 + T lymphocytes may recognize “stressed” hair follicle keratinocytes, leading to IFNγ-dependent hair follicle dystrophy and immune privilege collapse

1 citations , April 2016 in “Journal of Investigative Dermatology”

This study suggests that NKG2D+ Vδ1 T cells may contribute to hair follicle pathology in alopecia areata by recognizing stressed keratinocytes and inducing immune privilege collapse.

Resident T Cell Activation Leads to Human Hair Follicle Immune Privilege Loss Ex Vivo, Which Is Prevented by the DHODH Inhibitor Farudodstat: Relevance for Alopecia Areata

research Resident T cell activation leads to human hair follicle immune privilege loss ex vivo, which is prevented by the DHODH inhibitor farudodstat: relevance for alopecia areata

April 2026 in “Frontiers in Medicine”

This study found that activating hair follicle resident T cells in a human organ culture can induce an alopecia areata-like immune response, and that the drug farudodstat partially reduced this effect.

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Community Join

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community PP405 Won’t Work: Follicle Is Miniaturized, Fibrosed, And Missing Key Support Cells

7 months ago

PP405 is ineffective for miniaturized, fibrosed hair follicles in androgenetic alopecia. AMP303 may activate hair follicle stem cells, but minoxidil and finasteride are still the main treatments.

community If we can clone a sheep why we can't cure baldness till now

in Research/Science 181 upvotes 11 months ago

Hair loss treatments like Minoxidil, finasteride, and stem cell therapies exist, but a complete cure is hindered by genetic complexity and market dynamics. Cloning hair follicles is considered a potential solution, but it's currently not feasible.

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Learn

3 / 801 results

learn Osteopontin

signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss

learn Alopecia Areata

autoimmune disorder causing patchy hair loss

learn Neem Oil

natural substance from Neem tree with medicinal and pesticidal properties

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