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.
163 citations
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April 2019 in “Nature Communications” Mechanical stretching of the skin can promote hair growth by activating certain immune cells.
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.
62 citations
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July 2022 in “Science Immunology” TREM2 macrophages and unsaturated lipids contribute to acne inflammation.
40 citations
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March 2022 in “Small” Hydrogel with M2-derived exosomes improves wound healing by slowly releasing exosomes that help reduce inflammation and promote tissue repair.
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.
24 citations
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May 2021 in “Nature Communications” Cavity macrophages gather on organ surfaces but don't really invade or help repair the organs after injury.
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.
18 citations
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December 2021 in “Journal of Nanobiotechnology” The nanofibers effectively treated infected diabetic wounds by killing bacteria and aiding wound healing without toxicity.
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.
2 citations
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May 2024 in “International Journal of Molecular Sciences” Targeting CD169+ skin macrophages may help treat psoriasis.
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.
5 citations
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September 2023 in “Journal of Cosmetic Dermatology” c-Maf positive macrophages help form hypertrophic scars by affecting fibroblasts and collagen production.
April 2023 in “Journal of Investigative Dermatology” Type 2 inflammation helps wound healing by switching immune cells to repair mode.
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.
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.
Male hormones can decrease the ability of immune cells to fight bacteria.