February 2026 in “Human Cell” This study found that factors released by mesenchymal stromal cells can enhance the proliferation and migration of keratinocytes in vitro, which may contribute to improved understanding of their role in wound healing and potential applications in dermal regeneration therapies.
August 2022 in “Research Square (Research Square)” This study found that implanting HAP stem cells in a mouse model accelerated wound closure and reduced scar formation, suggesting potential for scar-free wound healing.
March 2013 in “Molecular & Cellular Toxicology/Molecular & cellular toxicology” In this study, exposure to m-Aminophenol in human keratinocytes altered the expression of thousands of genes involved in inflammation and stress responses, suggesting potential biomarkers for MAP-induced skin toxicity.
176 citations
,
January 2003 in “Journal of Investigative Dermatology” This review summarizes the roles of bone morphogenetic proteins in the development and regulation of normal and diseased skin, but it does not provide new clinical results.
174 citations
,
April 2005 in “The American journal of pathology (Print)” This study found that TRPV1 activation in human scalp hair follicles inhibited hair shaft elongation, suppressed proliferation, and induced apoptosis, suggesting TRPV1 as a potential target for managing hair growth and epithelial disorders.
140 citations
,
December 1998 in “Journal of Investigative Dermatology” Apoptosis in hair follicles varies by growth phase, with TGF-β possibly starting the catagen phase.
139 citations
,
October 2005 in “Journal of Investigative Dermatology” This study describes previously unknown immune characteristics of the normal human nail, highlighting its similarities to the hair follicle immune system and suggesting an immune privilege in the proximal nail matrix that both provides autoimmunity protection and presents infection susceptibility.
122 citations
,
November 2010 in “Journal of Dermatological Science” This study found that increased expression of type II 5α-reductase, androgen receptors, and Hic-5/ARA55 in dermal papilla cells upregulates androgen sensitivity, playing a key role in androgenetic alopecia pathogenesis.
115 citations
,
February 2016 in “Nature Communications” The authors concluded that the dermal response to epidermal Wnt/β-catenin signaling depends on distinct fibroblast lineages, with each responding to different paracrine signals such as Hedgehog and TGF-β.
96 citations
,
December 2018 in “Immunity” This study found that inhibiting TGF-β receptors in adult dermal fibroblasts restored their function and increased resistance to Staphylococcus aureus infection by enhancing their adipogenic and antimicrobial capabilities.
92 citations
,
June 2005 in “Journal of Investigative Dermatology” This study found that the retinoid all-trans retinoic acid induced a catagen-like stage in human scalp hair follicles, suggesting upregulation of TGF-beta2 as a contributing mechanism.
81 citations
,
September 2005 in “The American journal of pathology” This study found that activin affects both stromal cells and keratinocytes in skin morphogenesis and repair, with dose-dependent effects on keratinocytes demonstrated through transgenic mouse models.
78 citations
,
June 2021 in “Dermatology and Therapy” This study highlights the evolving understanding of acne's pathophysiology and suggests that targeting pro-inflammatory cytokines such as IL-1β, IL-17, IL-23, and TNFα with biological antibodies may offer new treatment strategies for severe acne and its scars.
68 citations
,
April 2012 in “Journal of Investigative Dermatology” The study reports that Fgf18 and Tgf-β2 signaling pathways in hair follicle stem cells have opposing effects on the timing of hair cycle transitions, influencing the shift from telogen to anagen phases.
67 citations
,
August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” This study found that in vitro, beard dermal papilla cells stimulated keratinocyte proliferation via androgen-dependent growth factors, while androgenetic alopecia cells released TGF-β1, inhibiting keratinocyte growth.
59 citations
,
September 2011 in “Lasers in Medical Science” This study concluded that the 800-nm diode laser is effective in enhancing skin structure and collagen expression via the TGF-β/Smad pathway, suggesting potential for non-ablative rejuvenation.
56 citations
,
September 2013 in “Journal of Biochemistry and Molecular Biology” This study observed that androgen treatment increased ROS production and TGF-β1 secretion in rat hair follicle dermal papilla cells, suggesting that the androgen-induced TGF-β1 is mediated by ROS.
55 citations
,
April 2015 in “BMC medicine” This study found that the Stem Cell Educator therapy improved hair regrowth and quality of life in patients with severe alopecia areata by restoring immune balance and protecting hair follicles from autoimmune damage.
50 citations
,
March 2018 in “BMC Genomics” This study expands knowledge of non-coding RNAs in goats and other mammals, enhancing understanding of their roles in hair follicle growth and regression.
47 citations
,
August 2016 in “Fitoterapia” This article reviews mechanisms by which herbal ingredients may stimulate or inhibit hair growth, and it reports no new clinical findings while suggesting potential for developing hair loss treatments.
46 citations
,
August 2003 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that phosphatidic acid promotes hair growth by stimulating cell proliferation and protecting against apoptosis in murine hair epithelial cells, unlike lysophosphatidic acid, which showed limited effects.
44 citations
,
January 2013 in “BMC Dermatology” This study found that TGFβ signaling is essential for keeping sebocytes undifferentiated by reducing lipid-related gene expression, using a novel human sebocyte culture model.
43 citations
,
March 2009 in “Journal of Cellular and Molecular Medicine” This study suggests that TGF-β 2 plays a critical role in hair follicle morphogenesis and may enhance the effectiveness of future cell therapies for hair regrowth using expanded dermal papilla cells.
41 citations
,
February 2001 in “Current pharmaceutical design” This review discusses current and potential treatments for alopecia areata, focusing on immunosuppressive and immunomodulatory approaches, but provides no new clinical results.
39 citations
,
March 2009 in “Archives of Dermatological Research” This study suggests that apigenin may stimulate hair growth by downregulating TGF-ß1 gene expression in human epidermal keratinocytes and promoting hair follicle elongation in a rat hair follicle culture.
36 citations
,
April 2018 in “Journal of Investigative Dermatology” This study found that transforming growth factor-β1 and CX3CR1 are crucial for recruiting specific macrophages essential for wound-induced hair growth in mice.
36 citations
,
December 2002 in “Experimental dermatology” This study found that procyanidin B-3, a compound isolated from barley extract, may promote hair growth by enhancing hair epithelial cell growth and counteracting TGF-β1's growth-inhibiting effects in vitro and in vivo.
35 citations
,
October 2014 in “Wound Repair and Regeneration” This study developed a validated murine model of hypertrophic scar contraction, demonstrating similarities to human skin and observing graft contraction and tissue characteristics over time.
32 citations
,
March 2014 in “PLOS ONE” This study demonstrates that FMOD deficiency in mice alters TGF-β ligand and receptor expression during wound healing stages, leading to delayed wound closure and increased scar size.
28 citations
,
May 2019 in “Life Sciences” This study found that ginsenoside Rb1 promoted the growth of mink hair follicles and dermal papilla cells, potentially through activating the PI3K/AKT/GSK-3β signaling pathway.