Whiskers can form without sensory nerves or Foxd1, thanks to Meis2 in mesenchymal cells.
Hair follicle stem cells are crucial for touch sensation and proper nerve structure in mice.
13 citations
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December 1983 in “Canadian journal of zoology” Heterotypic cell contacts likely help hair matrix cells differentiate during mouse hair follicle development.
31 citations
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November 1991 in “Brain Research” Aδ-LTMRs have complex synapses with glycine, while Aβ-LTMRs have simpler ones.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Developing hair follicles form from ring-shaped patterns, with future stem cells originating from the outer ring, not the upper layers, as previously thought.
419 citations
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March 2005 in “Proceedings of the National Academy of Sciences” Hair-follicle stem cells can become neurons.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” The research identified specific genes that are active in the cells crucial for hair growth.
April 2018 in “Journal of Investigative Dermatology” Key signals for hair follicle formation were identified.
December 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” New cells join the hair's dermal papilla during the growth phase, possibly affecting hair thickness.
1 citations
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January 2003 Merkel cells likely attract sensory nerve fibers.
25 citations
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November 2020 in “Cell Reports Medicine” Developing human skin has immune cells with memory-like features.
2 citations
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February 2021 in “FEBS open bio” Human hair keratins K85 and K35 create unique filament patterns important for early hair formation.
2 citations
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July 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Neural stem cells use local feedback to maintain balance in the adult brain.
111 citations
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January 2007 in “Seminars in cell & developmental biology” Hair, teeth, and mammary glands develop similarly at first but use different genes later.
372 citations
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December 2004 in “Nature Genetics”
September 2017 in “Journal of Investigative Dermatology” The research concluded that hyaluronic acid affects the formation and growth of hair follicle-like structures in a lab setting.
16 citations
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November 2005 in “Journal of Clinical Pathology” CD1d expression in scalp skin and hair follicles changes with the hair cycle and may help protect against microbes.
34 citations
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November 2010 in “Development” Activating Notch in adult skin causes T cells and neural crest cells to gather, leading to skin issues.
January 2014 in “Institutional Repositories DataBase (IRDB)” Fibroblast spheres can form stem cells, but marker distribution needs more study.
Dermal papilla cells can help form hair-like structures in lab-grown skin cells.
110 citations
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January 1995 in “European Journal of Neuroscience” Glycine is a key transmitter in rat spinal cord synapses, often alongside GABA.
61 citations
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October 1996 in “Development” Hair growth can be stimulated by combining certain skin cells, which can rejuvenate old cells and cause them to specialize in hair follicle creation.
89 citations
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May 2005 in “Stem Cells” Mouse skin has special cells in the epidermis that decrease with age and are linked to keratinocyte stem cells.
April 2017 in “Journal of Investigative Dermatology” Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.
106 citations
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February 2014 in “eLife” Lanceolate complexes in mouse hair follicles are essential for touch and depend on specific cells for maintenance and regeneration.
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December 1972 in “Journal of Investigative Dermatology”
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April 2017 in “PLoS ONE” Hair follicle cells can become bone-like cells, useful for bone repair.
90 citations
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August 2004 in “Physiological Genomics” Dermal papilla cells help skin stem cells grow into hair.
44 citations
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June 2009 in “Biomaterials” Skin cell clumping for hair growth is improved by a protein called fibronectin, which helps cells stick and move better.
30 citations
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January 1999 in “Journal of Cutaneous Pathology” Spiny keratoderma may be ectopic hair formation on palms and soles.