278 citations
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March 2013 in “Gut” In this study, nearly 5% of anti-TNF-treated patients with IBD developed psoriasiform skin lesions, with smoking identified as a main risk factor, and ustekinumab proved highly effective in severe cases.
4 citations
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January 2011 in “Journal of UOEH” In this case study, the progression of alopecia universalis in a Japanese man was linked to the involvement of Th1 and Th17 cells, suggesting an autoimmune mechanism.
1 citations
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April 2023 in “World Journal of Urology” In this study, researchers found that using a 5-α reductase inhibitor may reduce inflammation-related cytokines associated with T-helper cell 1 and T-helper cell 2 in prostate tissues after surgery, but it did not affect those related to Th17 cells.
In this study, researchers found that CD4 T cells from the skin draining lymph nodes of mice with alopecia areata can transfer the disease to recipient mice, highlighting the key role of these cells and their interaction with CD8 T cells in the disease's development.
April 2019 in “Journal of Investigative Dermatology” Targeting immune pathways like JAK/STAT may help treat frontal fibrosing alopecia.
July 2026 in “Journal of Investigative Dermatology” 1 citations
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October 2023 in “European Journal of Dermatology” This study found that combining hair transplantation with platelet-rich plasma treatment significantly improved hair regeneration, reduced hair loss, and minimized skin lesion areas in patients with androgenic alopecia compared to hair transplantation alone, suggesting enhanced treatment efficacy.
13 citations
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May 2023 in “Journal of Dermatological Science” This research found that reduced expression of SIRT1 in human scalp tissue may contribute to alopecia areata development by inducing immune-inflammatory responses in hair follicle cells, suggesting that SIRT1 plays a regulatory role in hair follicle immunity.
6 citations
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June 2024 in “Biofabrication” This study used digital-light-processing bioprinting to create a 3D skin-on-a-chip model with a miniaturized vascular network to closely study immune cell interactions similar to real human skin, demonstrating the potential to analyze immune-T cell trafficking influenced by skin signals.
1 citations
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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.
July 2024 in “Journal of Investigative Dermatology” Sex and race affect immune responses and treatment outcomes in Hidradenitis suppurativa.
January 2014 in “Journal of Jilin University” This study found that Th22 cells and their cytokine IL-22 may play an important role in the pathogenesis of systemic lupus erythematosus and could serve as bioindicators for monitoring disease severity.
3 citations
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January 2016 in “Journal of Clinical & Cellular Immunology” In this study, increased production of CXCL10 was associated with the infiltration of Th1 and Tc1 cells in acute alopecia areata, suggesting a possible new target for treatment.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that patients with alopecia areata had significantly lower frequencies of IL-10 producing CD19+CD24hiCD38hi regulatory B cells compared to healthy volunteers, suggesting a potential role for these cells in the autoimmune response seen in the condition.
220 citations
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June 2013 in “The Journal of Pathology” This study found that immune privilege collapse in the hair follicle bulge and associated immune responses may contribute significantly to the pathogenesis of lichen planopilaris, suggesting a potential autoimmune basis for the disease.
127 citations
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January 2000 in “Journal of Investigative Dermatology” This study found that pro-inflammatory cytokines and apoptotic mechanisms, specifically involving granzyme B and Fas pathways, are associated with chronic alopecia areata, indicating their potential role in the disease's persistence.
1 citations
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September 2025 in “Frontiers in Immunology” This study reviewed the expression of chemokines in patients with alopecia areata, finding elevated Th1 and Th2 chemokine levels, suggesting a complex immune profile that may require broad immunomodulatory strategies to address the disease's underlying immune dysregulation.
July 2026 in “Journal of Investigative Dermatology” Alopecia totalis/universalis involves more intense immune activity and inflammation than patchy alopecia areata.
February 2026 in “Journal of Allergy and Clinical Immunology” In this single-cell transcriptomic study, researchers analyzed AA scalp samples and found distinct immune and nonimmune cell activation patterns, with elevated TH1/TH2 and JAK/STAT markers potentially contributing to hair follicle immune privilege disruption and disease severity.
November 2025 in “The Journal of Immunology” This study identified specific genes upregulated in skin γδ T cells involved in alopecia areata, with findings suggesting these cells contribute to disease pathogenesis through inflammatory and Th1 response mechanisms in mouse and possibly human skin.
September 2025 in “Figshare” This study conducted a scoping review and meta-analysis revealing a complex chemokine profile in alopecia areata patients, with elevated Th1, Th2, and other immune pathway chemokines, suggesting broader immunomodulatory strategies may help address the disease's multifaceted immune dysregulation.
September 2025 in “Figshare” In this scoping review and meta-analysis, researchers found that patients with alopecia areata show a complex serum chemokine profile, predominantly involving Th1- and Th2-associated chemokines, suggesting that broader immunomodulatory strategies might address the diverse immune dysregulation observed in the disease.
September 2025 in “Figshare” In this scoping review and meta-analysis, researchers found that patients with alopecia areata exhibit complex chemokine profiles, with elevated levels of Th1, Th2, and other immune pathway-associated chemokines, suggesting the potential for broad immunomodulatory strategies to address the disease's immune dysregulation.
April 2018 in “Journal of Investigative Dermatology” This study found that both Th1 and Th2 cytokine markers were elevated in the serum and skin of patients with alopecia areata, with Th2 markers more closely linked to disease severity.
October 2025 in “Science Advances” In this study, researchers demonstrated that CD4 T cells from skin-draining lymph nodes in mice with alopecia areata can transfer the disease to recipient mice, revealing a critical role for CD4 T cells in disease development and suggesting potential therapeutic targets.
29 citations
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February 2018 in “European Journal of Immunology” In this study, Treg depletion impaired skin wound healing in mice, potentially by altering the cytokine environment and expanding certain T-cell populations, disrupting the normal healing process.
12 citations
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March 2016 in “BBA clinical” This study found that intracellular Toll-like receptors were significantly up-regulated in peripheral blood mononuclear cells of alopecia areata patients, suggesting a potential role in inflammatory signaling and pathogenesis.
July 2026 in “Expert Review of Clinical Immunology” This review highlights that alopecia areata is characterized by three immune endotypes, and while JAK inhibitors offer temporary control, upcoming multi-omics diagnostics and immune reprogramming strategies may achieve longer-lasting remission, according to this analysis.
69 citations
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July 2002 in “Clinical and Experimental Dermatology” This review discusses rodent models of alopecia areata and highlights genetic and epigenetic factors influencing its development, but reports no new experimental results.
69 citations
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February 2008 in “The American journal of pathology” This study found that local injections of interleukin-4 and neutralizing anti-interferon-γ antibody effectively treated alopecia in a mouse model, suggesting potential therapeutic pathways for human alopecia areata.