April 2016 in “Journal of Investigative Dermatology” A specific type of immune cells, called CD301b-expressing macrophages, are crucial for skin repair processes.
201 citations
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April 2017 in “Regeneration” Macrophages and fibroblasts help repair organs after injury, affecting whether they regenerate or scar.
119 citations
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November 1969 in “Journal of Ultrastructure Research” Macrophages help break down collagen around hair follicles during hair growth.
November 2025 in “The Journal of Immunology” BST2 is highly expressed in certain immune cells in alopecia areata, suggesting a role in the disease.
June 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” In alopecia areata, certain immune cells increase and express a protein linked to immune activation.
The 1550 nm fractional Er:Glass laser improved hair regrowth in patients with androgenic alopecia, but didn't significantly change collagen type I, skin fibroblasts, or macrophages. More research is needed for optimal results.
June 2021 in “Journal of Cosmetic Dermatology” Laser treatment shows promise for hair growth, but needs further research.
Bipotent dermal stem cells and specific macrophages are crucial for hair regrowth and regeneration.
101 citations
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March 2019 in “Cell Stem Cell” Certain immune cells in the skin release a protein that stops hair growth by keeping hair stem cells inactive.
27 citations
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May 2018 in “Journal of Dermatological Science” M2 macrophages, a type of immune cell, help in new hair growth on scars by producing growth factors.
23 citations
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January 2024 in “Journal of Investigative Dermatology” Corticosteroids can reduce scarring in acne keloidalis by targeting specific cells.
21 citations
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March 2019 in “Experimental Dermatology” Immune cells around hair follicles help control hair growth and could be targets for treating hair disorders.
6 citations
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June 2022 in “Frontiers in Bioengineering and Biotechnology” The gel with icariin speeds up wound healing, reduces scarring, and helps hair growth by controlling BMP4 signaling. It also reduces inflammation and improves wound quality in mice, adapts to different wound shapes, and gradually releases icariin to aid healing. It also prevents too much collagen and myofibroblast formation during skin healing.
July 2025 in “Journal of Investigative Dermatology” Schwann cell and M2 macrophage interactions contribute to keloid growth by increasing matrix deposition.
January 2025 in “Dermatology Research and Practice” Higher activity in lichen planopilaris is linked to certain immune and tissue genes.
October 2024 in “Journal of Cutaneous Immunology and Allergy” Steroid injections improved symptoms and hair regrowth in a woman with a reaction to permanent makeup.
July 2024 in “Journal of Investigative Dermatology” Certain substances can help skin cells become anti-inflammatory, aiding in tissue repair.
April 2023 in “Journal of Investigative Dermatology” CD206+ macrophages are crucial for hair growth in alopecia areata treatment.
July 2022 in “Journal of Investigative Dermatology” Arg1+ macrophages may play a role in Alopecia Areata, offering new treatment targets.
April 2021 in “Journal of Investigative Dermatology” Arg1+ macrophages may play a role in causing alopecia areata.
April 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” M2 macrophages help hair regrowth in wounds by making growth factors.
54 citations
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June 2008 in “Planta Medica” Hinokitiol may help treat hair loss by reducing inflammation and promoting hair growth.
31 citations
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February 2014 in “Inflammation Research” Lower CD200R1 on certain immune cells is linked to more severe rheumatoid arthritis and immune imbalance.
13 citations
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February 2023 in “Pharmaceutics” Bioactive wound dressings can improve healing by promoting beneficial macrophage activity.
6 citations
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April 2025 in “Plastic and Aesthetic Research” Biomaterial characteristics can influence macrophages to promote healing and improve tissue regeneration.
6 citations
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January 2021 in “Frontiers in Immunology” Certain immune cells worsen post-surgery gut paralysis by activating a specific immune response.
September 2025 in “e-space (Manchester Metropolitan University)” Blocking androgen receptors helps immune cells better fight certain bacteria.
September 2025 in “Deleted Journal” Blocking androgen receptors boosts macrophages' ability to clear certain bacteria.
Male hormones can decrease the ability of immune cells to fight bacteria.
8 citations
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February 2024 in “Matrix Biology”