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90-120 / 172 resultsresearch Transforming Growth Factor-β Signaling-Mediated Wound Healing Is Required for Hair Follicle Neogenesis
The study investigates the role of Transforming growth factor-β (TGF-β) signaling in wound healing and its necessity for hair follicle neogenesis (HFN) in mice. It was found that TGF-β signaling is crucial for collagen deposition in the wound dermis, which is essential for initiating HFN. The research showed that macrophages are key in sending TGF-β signals to fibroblasts, and the absence of TGF-β1 secretion from macrophages impairs HFN. Conditional knockout of TGF-β receptor 2 in fibroblasts before re-epithelialization inhibited HFN, but not after. Additionally, knocking out collagen type I, a downstream component of TGF-β signaling, also inhibited HFN. However, activating the Sonic hedgehog pathway could rescue HFN, highlighting its potential as a therapeutic target for hair regeneration.
research Shock Waves for Hair Growth and Regeneration in Patients with Female Pattern Hair Loss
Extracorporeal shock waves significantly improve hair growth in women with female pattern hair loss.
research Multimodal Molecular Analysis Reveals Divergent Trajectories of Wound Regeneration Versus Fibrosis
Verteporfin treatment in mice led to complete skin healing without scarring.
research Fibroblasts: Origins, Definitions, and Functions in Health and Disease
Fibroblasts are crucial for tissue repair and inflammation, and understanding them can help treat fibrotic diseases.
research Integrin Signaling Regulates YAP/TAZ to Control Skin Homeostasis
The study demonstrated that the transcription regulators YAP and TAZ were essential for maintaining skin homeostasis by promoting the proliferation of basal layer stem/progenitor cells. In both mouse and human skin, YAP and TAZ localized in the nucleus of basal layer cells, regulated by integrin-Src signaling. Deletion of YAP and TAZ in mice resulted in slowed cell proliferation, hair loss, and impaired wound healing, underscoring their role in skin regeneration. The research highlighted the importance of integrin-Src and EGFR-PI3K signaling pathways for YAP nuclear localization, which was crucial for cell cycle progression and growth. Additionally, YAP acted as a sensor of epithelial cell polarity, with its localization influenced by apical-basal polarity signals. These findings provided insights into the molecular mechanisms of skin renewal and the potential impact of YAP and TAZ on skin-related conditions and cancer.
research Regeneration of Dermis: Scarring and Cells Involved
Different fibroblasts play key roles in skin healing and scarring.
research Delta Opioid Receptors Presynaptically Regulate Cutaneous Mechanosensory Neuron Input to the Spinal Cord Dorsal Horn
The study revealed that delta opioid receptors (DOR) played a crucial role in regulating cutaneous mechanosensation, including touch, by inhibiting synaptic input to the spinal dorsal horn through blocking voltage-gated calcium channels. DOR was primarily expressed in large-diameter, myelinated mechanoreceptors, challenging previous beliefs about its expression in small-diameter neurons. The research used a DORGFP knockin mouse model to map DOR distribution and found that DOR agonists like deltorphin II significantly reduced neurotransmitter release, suggesting a potential target for treating injury-induced mechanical hypersensitivity. The study highlighted the distinct roles of DOR and mu opioid receptors (MOR) in somatosensory processing, with DOR affecting mechanoreceptors involved in touch sensation and MOR associated with nociceptive pathways. These findings provided insights into the molecular mechanisms by which opioids could modulate touch and pain sensations.
research Toward Understanding Scarless Skin Wound Healing and Pathological Scarring
Scarless healing is complex and influenced by genetics and environment, while better understanding could improve scar treatment.
research Cell Fate Decisions: Emerging Roles for Metabolic Signals and Cell Morphology
Metabolic signals and cell shape influence how cells develop and change.
research Scarless Wound Healing: Transitioning from Fetal Research to Regenerative Healing
Understanding how baby skin heals without scars could help develop treatments for adults to heal wounds without leaving scars.
research Production-Scale Fibronectin Nanofibers Promote Wound Closure and Tissue Repair in a Dermal Mouse Model
Large-scale fibronectin nanofibers help heal wounds and repair tissue in a skin model of a mouse.
research Targeting Integrin Pathways: Mechanisms and Advances in Therapy
New therapies are being developed that target integrin pathways to treat various diseases.
research Lysophospholipid Mediators in Health and Disease
Lysophospholipids like LPA and S1P are important for hair growth, immune responses, and vascular development, and could be targeted for treating diseases.
research Altered Dermal Fibroblasts in Systemic Sclerosis Display Podoplanin and CD90
Fibroblast changes in systemic sclerosis may help understand disease severity and treatment.
research Keratin Intermediate Filaments in the Colon: Guardians of Epithelial Homeostasis
Keratin proteins are essential for keeping the cells in the human colon healthy and stable.
research Bone-Forming Cells with Pronounced Spread into the Third Dimension in Polymer Scaffolds Fabricated by Two-Photon Polymerization
Bone-forming cells grow well in 3D polymer scaffolds with 35 µm pores.
research Electrospun Scaffold of Collagen and Polycaprolactone Containing ZnO Quantum Dots for Skin Wound Regeneration
The new wound dressing helps skin heal faster and fights infection.
research Hair Shaft Miniaturization Causes Stem Cell Depletion Through Mechanosensory Signals Mediated by a Piezo1-Calcium-TNF-α Axis
Hair thinning causes stem cell loss through a process involving Piezo1, calcium, and TNF-α.
research A Novel PLEC Nonsense Homozygous Mutation (c.7159G > T; p.Glu2387*) Causes Epidermolysis Bullosa Simplex with Muscular Dystrophy and Diffuse Alopecia: A Case Report
A new mutation in the PLEC gene causes a rare condition with skin blistering, muscle weakness, and hair loss.
research Back to the Future: From Appendage Development Toward Future Human Hair Follicle Neogenesis
New hair follicles could be created to treat hair loss.
research Characterization of the Epidermal-Dermal Junction in hiPSC-Derived Skin Organoids
The study created hair-bearing skin models that lack a key protein for skin layer attachment, limiting their use for certain skin disease research.
research Laminin 332 Is Indispensable for Homeostatic Epidermal Differentiation Programs
Laminin 332 is essential for normal skin cell behavior and structure.
research Testosterone Prevents Cutaneous Ischemia and Necrosis in Males Through Complementary Estrogenic and Androgenic Actions
Testosterone helps prevent skin damage in males by acting through both estrogen and androgen pathways.
research A Hybrid Hydrogel Encapsulating Human Umbilical Cord Mesenchymal Stem Cells Enhances Diabetic Wound Healing
A new hydrogel with stem cells from the human umbilical cord speeds up healing in diabetic wounds.
research Genome-Wide Association Study for Udder Conformation Traits in Chinese Holstein Cattle
Certain genes affect udder shape in Holstein cows, important for health and milk production.
research Wound Healing Impairment in Type 2 Diabetes Model of Leptin-Deficient Mice: A Mechanistic Systematic Review
Leptin-deficient mice, used as a model for Type 2 Diabetes, have delayed wound healing due to impaired contraction and other dysfunctional cellular responses.
research Recent Tissue Engineering Approaches to Mimicking the Extracellular Matrix Structure for Skin Regeneration
New materials that better mimic natural skin structure could improve healing, especially for chronic wounds.
research Tissue Mechanics in Haired Murine Skin: Potential Implications for Skin Aging
Older mice have stiffer skin with less elasticity due to changes in collagen and skin structure, affecting aging and hair loss.
research From Structural Resilience to Cell Specification: Intermediate Filaments as Regulators of Cell Fate
Intermediate filaments are crucial for cell differentiation and stem cell function.