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.
November 2022 in “Journal of Investigative Dermatology” This study observed that dandruff is linked to a weakened immunoprivilege in hair follicles, with reduced Langerhans cells and increased epidermal CD4+ and CD8+ T cell infiltration.
4 citations
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November 2014 The skin protects the body, regulates temperature, senses touch, and makes vitamin D.
6 citations
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November 2018 in “American journal of transplantation” This study reported that using UVB preirradiation and anti-CD154 antibody treatment in a humanized mouse model prolonged hair follicle allograft survival and reduced immune cell infiltration without needing generalized immunosuppression.
47 citations
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December 2011 in “Experimental Dermatology” This study suggests that the neuropeptide CGRP may protect against, but not restore, IFNγ-induced collapse of hair follicle immune privilege in alopecia areata.