Vitamin A Resolves Lineage Plasticity to Orchestrate Stem Cell Lineage Choices

March 2024 in “ Science ”

Matthew Tierney, Lisa Polak, Yuekui Yang, Merve Deniz Abdusselamoglu, Inwha Baek, Katherine Stewart, Elaine Fuchs

vitamin A all-trans retinoic acid atRA hair follicle stem cells HFSCs lineage plasticity wound healing retinoid stem cells regenerative medicine retinoic acid

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Studysummary In this study, researchers found that retinoic acid is crucial for hair follicle stem cell function and tissue regeneration by resolving lineage plasticity, with potential therapeutic implications for hair growth, wound healing, and cancer.

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research The Pioneer Factor SOX9 Competes for Epigenetic Factors to Switch Stem Cell Fates

6 citations , July 2023 in “Nature cell biology”

In this study, re-activating SOX9 in adult epidermal stem cells led to a fate switch towards hair follicle stem cell identity, with altered chromatin dynamics and oncogenic activation, contributing insights into developmental processes and cancer pathways.

research Distinct Regulatory Programs Control the Latent Regenerative Potential of Dermal Fibroblasts During Wound Healing

128 citations , August 2020 in “Cell stem cell”

In this study, researchers found that extrafollicular progenitors marked by Hic1 are the main contributors to reparative fibroblasts in wound repair, with potential to modulate healing outcomes through genetic and pharmacological interventions.

research Dermal Adipocyte Lipolysis and Myofibroblast Conversion Are Required for Efficient Skin Repair

124 citations , June 2020 in “Cell Stem Cell”

This study found that in mice, dermal adipocytes initiate inflammation and aid repair after skin injury by releasing lipids, suggesting a role in managing inflammatory diseases and impaired wound healing.

research Noncoding dsRNA Induces Retinoic Acid Synthesis to Stimulate Hair Follicle Regeneration via TLR3

47 citations , June 2019 in “Nature Communications”

This study found that self-noncoding dsRNA activates TLR3 to stimulate intrinsic retinoic acid synthesis, promoting new hair follicle formation in wounded mice and showing similar gene expression changes in humans treated with rejuvenation lasers.

research Stretching the Limits: From Homeostasis to Stem Cell Plasticity in Wound Healing and Cancer

124 citations , February 2018 in “Nature Reviews Genetics”

This review covers recent findings on stem cell plasticity under normal and cancerous conditions but presents no new experimental results, highlighting implications for regenerative medicine and cancer treatments.

research Temporal Layering of Signaling Effectors Drives Chromatin Remodeling During Hair Follicle Stem Cell Lineage Progression

85 citations , January 2018 in “Cell stem cell”

This study found that synchronized signals in the microenvironment regulate stem cell lineage choices in hair follicles by influencing chromatin dynamics during regeneration.

research Lactate Dehydrogenase Activity Drives Hair Follicle Stem Cell Activation

202 citations , August 2017 in “Nature cell biology”

This study found that glycolytic metabolism and lactate production are crucial for hair follicle stem cell activation, and manipulating these processes can stimulate the hair cycle.

research Epithelial-Mesenchymal Micro-Niches Govern Stem Cell Lineage Choices

214 citations , April 2017 in “Cell”

This study found that micro-niches within hair follicles create heterogeneity among stem cells and transit-amplifying cells, leading to specialized progenitors that control tissue morphogenesis and regeneration.

research Hair Follicle Aging Is Driven by Transepidermal Elimination of Stem Cells via COL17A1 Proteolysis

242 citations , February 2016 in “Science”

This research found that Foxc1 transcription factor and COL17A1 are critical in regulating quiescence and hair thinning in hair follicle stem cells, with aging-related DNA damage leading to hair loss.

research Gab1 and MAPK Signaling Are Essential in the Hair Cycle and Hair Follicle Stem Cell Quiescence

36 citations , October 2015 in “Cell reports”

In this study, researchers found that Gab1 is critical in controlling the hair cycle and the self-renewal of hair follicle stem cells in mice.

research Pioneer Factors Govern Super-Enhancer Dynamics in Stem Cell Plasticity and Lineage Choice

321 citations , March 2015 in “Nature”

This study found that super-enhancers are essential for hair follicle stem cell identity, lineage commitment, and plasticity in mice, with SOX9 being a key regulator of these chromatin dynamics.

research Emerging Interactions Between Skin Stem Cells and Their Niches

426 citations , August 2014 in “Nature Medicine”

This narrative review examines the interactions between skin stem cells and their niches, finding new insights from advancements in genetic and imaging tools but reporting no new experimental results.

research Endogenous Retinoids in the Pathogenesis of Alopecia Areata

54 citations , September 2012 in “The journal of investigative dermatology/Journal of investigative dermatology”

This study suggests that vitamin A influences the immune response and hair cycle, affecting the progression of alopecia areata in mouse models.

research Cutaneous Retinoic Acid Levels Determine Hair Follicle Development And Downgrowth

31 citations , September 2012 in “Journal of biological chemistry/The Journal of biological chemistry”

This study found that proper levels of retinoic acid, controlled by the enzyme Cyp26b1, are essential for normal hair follicle development and morphogenesis in mice.

research Retinol Esterification by DGAT1 Is Essential for Retinoid Homeostasis in Murine Skin

91 citations , November 2008 in “Journal of biological chemistry/The Journal of biological chemistry”

This study found that DGAT1 functions as a key enzyme in murine skin to regulate retinoic acid levels and prevent retinoid toxicity, impacting hair cycle and sensitivity to retinol.

research Nfatc1 Balances Quiescence and Proliferation of Skin Stem Cells

415 citations , January 2008 in “Cell”

NFATc1 controls hair stem cell activity, affecting hair growth and could be a target for hair loss treatments.

research Wnt-Dependent De Novo Hair Follicle Regeneration in Adult Mouse Skin After Wounding

829 citations , May 2007 in “Nature”

Hair follicles can regrow in wounded adult mouse skin using a process like embryo development.

research Scratching the Surface of Skin Development

788 citations , February 2007 in “Nature”

This review explores how adult skin epithelia preserve stem cell populations for hair follicle regeneration and wound healing, but reports no new experimental results.

research Characterization and Isolation of Stem Cell-Enriched Human Hair Follicle Bulge Cells

550 citations , December 2005 in “The Journal of clinical investigation/The journal of clinical investigation”

This study found that bulge cells marked by CD200+ in human hair follicles show high colony-forming efficiency, suggesting successful enrichment of keratinocyte stem cells.

research Defining BMP Functions in the Hair Follicle by Conditional Ablation of BMP Receptor IA

250 citations , November 2003 in “The Journal of Cell Biology”

This study found that BMP receptor IA is crucial for hair progenitor cell differentiation in mice, and its sequential inhibition and activation are necessary to generate a functioning hair shaft.