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hair follicle stem cell

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https://www.readbyqxmd.com/read/28815175/platelet-rich-plasma-an-elixir-for-treatment-of-alopecia-personal-experience-on-117-patients-with-review-of-literature
#1
REVIEW
Suruchi Garg, Shweta Manchanda
Platelet-rich plasma (PRP) has emerged as a new treatment modality in regenerative plastic surgery and dermatology. PRP is a simple, cost-effective and feasible treatment option with high patient satisfaction for hair loss and can be regarded as a valuable adjuvant treatment modality for androgenic alopecia and other types of non-scarring alopecias. Authors have proposed a hair model termed "Golden anchorage with 'molecular locking' of ectodermal and mesenchymal components for survival and integrity of hair follicle (HF)" in this article...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28812580/lactate-dehydrogenase-activity-drives-hair-follicle-stem-cell-activation
#2
Aimee Flores, John Schell, Abigail S Krall, David Jelinek, Matilde Miranda, Melina Grigorian, Daniel Braas, Andrew C White, Jessica L Zhou, Nicholas A Graham, Thomas Graeber, Pankaj Seth, Denis Evseenko, Hilary A Coller, Jared Rutter, Heather R Christofk, William E Lowry
Although normally dormant, hair follicle stem cells (HFSCs) quickly become activated to divide during a new hair cycle. The quiescence of HFSCs is known to be regulated by a number of intrinsic and extrinsic mechanisms. Here we provide several lines of evidence to demonstrate that HFSCs utilize glycolytic metabolism and produce significantly more lactate than other cells in the epidermis. Furthermore, lactate generation appears to be critical for the activation of HFSCs as deletion of lactate dehydrogenase (Ldha) prevented their activation...
August 14, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28809777/pigmented-epithelioid-melanocytoma-pem-animal-type-melanoma-atm-quest-for-an-origin-report-of-one-unusual-case-indicating-follicular-origin-and-another-arising-in-an-intradermal-nevus
#3
Ashley Tarasen, J Andrew Carlson, M Kathryn Leonard, Glenn Merlino, David Kaetzel, Andrzej T Slominski
Pigmented epithelioid melanocytoma (PEM) is a tumor encompassing epithelioid blue nevus of Carney complex (EBN of CNC) and was previously termed animal-type melanoma. Histologically PEMs are heavily pigmented spindled and epithelioid dermal melanocytic tumors with infiltrative borders, however, their origin remains unclear. Stem cells for the epidermis and hair follicle are located in the bulge area of the hair follicle with the potential to differentiate into multiple lineages. Multiple cutaneous carcinomas, including follicular cutaneous squamous cell carcinoma (FSCC), are thought to arise from stem cells in the follicular bulge...
August 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28791605/laser-and-light-treatments-for-hair-reduction-in-fitzpatrick-skin-types-iv-vi-a-comprehensive-review-of-the-literature
#4
REVIEW
Rachel A Fayne, Marina Perper, Ariel E Eber, Adam S Aldahan, Keyvan Nouri
Unwanted facial and body hair presents as a common finding in many patients, such as females with hirsutism. With advances in laser and light technology, a clinically significant reduction in hair can be achieved in patients with light skin. However, in patients with darker skin, Fitzpatrick skin types (FST) IV-VI, the higher melanin content of the skin interferes with the proposed mechanism of laser-induced selective photothermolysis, which is to target the melanin in the hair follicle to cause permanent destruction of hair bulge stem cells...
August 8, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28749199/hair-follicle-associated-pluripotent-hap-stem-cells
#5
Yasuyuki Amoh, Robert M Hoffman
Various types of stem cells reside in the skin, including keratinocyte progenitor cells, melanocyte progenitor cells, and skin-derived precursors (SKPs), and nestin-expressing hair follicle-associated-pluripotent (HAP) stem cells. HAP stem cells, located in the bulge area of the hair follicle, have been shown to differentiate to nerve cells, glial cells, keratinocytes, smooth muscle cells, cardiac muscle cells, and melanocytes. HAP stem cells are positive forthe stem cell marker CD34, as well as K15-negative, suggestingtheir relatively undifferentiated state and therefore, HAP stem cells may be the most primitive stem cells in the skin...
July 27, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28740409/hair-follicle-growth-by-stromal-vascular-fraction-enhanced-adipose-transplantation-in-baldness
#6
David Perez-Meza, Craig Ziering, Marcos Sforza, Ganesh Krishnan, Edward Ball, Eric Daniels
Great interest remains in finding new and emerging therapies for the treatment of male and female pattern hair loss. The autologous fat grafting technique is >100 years old, with a recent and dramatic increase in clinical experience over the past 10-15 years. Recently, in 2001, Zuk et al published the presence of adipose-derived stem cells, and abundant research has shown that adipose is a complex, biological active, and important tissue. Festa et al, in 2011, reported that adipocyte lineage cells support the stem cell niche and help drive the complex hair growth cycle...
2017: Stem Cells and Cloning: Advances and Applications
https://www.readbyqxmd.com/read/28735299/identification-of-the-first-dominant-mutation-of-lama5-gene-causing-a-complex-multisystem-syndrome-due-to-dysfunction-of-the-extracellular-matrix
#7
Simone Sampaolo, Filomena Napolitano, Alfonsina Tirozzi, Mafalda Giovanna Reccia, Luca Lombardi, Olimpia Farina, Adriano Barra, Ferdinando Cirillo, Mariarosa Anna Beatrice Melone, Fernando Gianfrancesco, Giuseppe Di Iorio, Teresa Esposito
BACKGROUND: The laminin alpha 5 gene (LAMA5) plays a master role in the maintenance and function of the extracellular matrix (ECM) in mammalian tissues, which is critical in developmental patterning, stem cell niches, cancer and genetic diseases. Its mutations have never been reported in human disease so far. The aim of this study was to associate the first mutation in LAMA5 gene to a novel multisystem syndrome. METHODS: A detailed characterisation of a three-generation family, including clinical, biochemical, instrumental and morphological analysis, together with genetics and expression (WES and RNAseq) studies, was performed...
July 22, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28732240/constitutive-transgene-expression-of-stem-cell-antigen-1-in-the-hair-follicle-alters-the-sensitivity-to-tumor-formation-and-progression
#8
Rikke Christensen, David M Owens, Annette C Füchtbauer, Anders Gunnarsson, Mette Ramsing, Ernst-Martin Füchtbauer, Uffe Birk Jensen
The cell surface protein Stem Cell Antigen-1 (Sca-1) marks stem or progenitor cells in several murine tissues and is normally upregulated during cancer development. Although the specific function of Sca-1 remains unknown, Sca-1 seems to play a role in proliferation, differentiation and cell migration in a number of tissues. In the skin epithelium, Sca-1 is highly expressed in the interfollicular epidermis but is absent in most compartments of the hair follicle; however, the function of Sca-1 in the skin has not been investigated...
July 8, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28727410/exosomes-mediate-epithelium-mesenchyme-crosstalk-in-organ-development
#9
Nan Jiang, Lusai Xiang, Ling He, Guodong Yang, Jinxuan Zheng, Chenglin Wang, Yimei Zhang, Sainan Wang, Yue Zhou, Tzong-Jen Sheu, Jiaqian Wu, Kenian Chen, Paulo G Coelho, Nicky M Tovar, Shin Hye Kim, Mo Chen, Yan-Heng Zhou, Jeremy J Mao
Organ development requires complex signaling by cells in different tissues. Epithelium and mesenchyme interactions are crucial for the development of skin, hair follicles, kidney, lungs, prostate, major glands, and teeth. Despite myriad literature on cell-cell interactions and ligand-receptor binding, the roles of extracellular vesicles in epithelium-mesenchyme interactions during organogenesis are poorly understood. Here, we discovered that ∼100 nm exosomes were secreted by the epithelium and mesenchyme of a developing tooth organ and diffused through the basement membrane...
August 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28725654/stem-cells-from-human-hair-follicles-first-mechanical-isolation-for-immediate-autologous-clinical-use-in-androgenetic-alopecia-and-hair-loss
#10
Pietro Gentile, Maria G Scioli, Alessandra Bielli, Augusto Orlandi, Valerio Cervelli
BACKGROUND: Hair follicles are known to contain a well-characterized niche for adult stem cells: the bulge, which contains epithelial and melanocytic stem cells. Stem cells in the hair bulge, a clearly demarcated structure within the lower permanent portion of hair follicles, can generate the interfollicular epidermis, hair follicle structures, and sebaceous glands. The bulge epithelial stem cells can also reconstitute in an artificial in vivo system to a new hair follicle. METHODS: In this study, we have developed a new method to isolate human adult stem cells by mechanical centrifugation of punch biopsy from human hair follicles without culture condition...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28702144/establishment-of-human-hair-follicle-mesenchymal-stem-cells-with-overexpressed-human-hepatocyte-growth-factor
#11
Dan Zhou, Hongjing Cheng, Jinyu Liu, Lei Zhang
OBJECTIVES: Chronic liver disease has become a major health problem that causes serious damage to human health. Since the existing treatment effect was not ideal, we need to seek new treatment methods. MATERIALS AND METHODS: We utilized the gene recombination technology to obtain the human hair mesenchymal stem cells which overexpression of human hepatocyte growth factor (hHGF). Furthermore, we verified the property of transfected cells through detecting surface marker by flow cytometry...
June 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28699278/regulatory-t-cells-in-skin
#12
REVIEW
Niwa Ali, Michael D Rosenblum
Foxp3+ CD4+ Regulatory T cells (Tregs) are a subset of immune cells that function to regulate tissue inflammation. Skin is one of the largest organs and is home to a large proportion of the body's Tregs. However, relative to other tissues (such as the spleen and gastrointestinal tract) the function of Tregs in skin is less well defined. Here, we review our understanding of how Tregs migrate to skin and the cellular and molecular pathways required for their maintenance in this tissue. In addition, we outline what is known about the specialized functions of Tregs in skin...
July 12, 2017: Immunology
https://www.readbyqxmd.com/read/28687932/spatial-and-temporal-expression-of-sox9-during-murine-incisor-development
#13
Zhi-Cheng Yang, Dan Li, Shuang Feng, Xiao-Dong Sui, Zhi Chen, Li Zhang
Mouse incisors are capable of continuously growing due to the renewal of dental epithelium stem cells and mesenchymal stem cells residing at the proximal ends. The transcription factor Sox9 plays important roles in maintaining the stem cells of hair follicles, retinal progenitor cells and neural crest stem cells. Whether Sox9 is involved during mouse incisor development is not reported yet. In this study, we examined the expression pattern of Sox9 during mouse incisor development by in situ hybridization and immunohistochemistry...
August 2017: Journal of Molecular Histology
https://www.readbyqxmd.com/read/28680144/transplanted-adipose-derived-stem-cells-can-be-short-lived-yet-accelerate-healing-of-acid-burn-skin-wounds-a-multimodal-imaging-study
#14
Ghulam Muhammad, Jiadi Xu, Jeff W M Bulte, Anna Jablonska, Piotr Walczak, Miroslaw Janowski
The incidence of accidental and intentional acid skin burns is rising. Current treatment strategies are mostly inadequate, leaving victims disfigured and without treatment options. Here, we have shown that transplantation of adipose-derived stem cells (ASCs) accelerates the process of acid burn wound-healing. Pre-conditioning of ASCs using ascorbic acid (AA) or hypoxic conditions provided additional benefit. While the wounds were ultimately healed in all mice, histological analysis revealed that, in non-transplanted animals, the number of hair follicles was reduced...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28672930/isolation-and-characterization-of-in-vitro-culture-of-hair-follicle-cells-differentiated-from-umbilical-cord-blood-mesenchymal-stem-cells
#15
Zhang-Yu Bu, Li-Min Wu, Xiao-Hong Yu, Jian-Bo Zhong, Ping Yang, Jian Chen
The present investigation explored the in vitro culture, isolation and characterization of hair follicle cell differentiation from umbilical cord blood mesenchymal stem cells (MSCs). Flow cytometry was used to obtain MSCs from the isolation and purification of human umbilical cord blood MSCs. Culture suspension of hair follicle organ was centrifuged and the supernatant used in the culture medium of MSCs, and the entire process of induced differentiation was recorded by photomicroscopy. The expression level of surface marker CK15 of hair follicle cells obtained from induced differentiation was detected with immunofluorescence...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28670819/emerging-roles-of-transit-amplifying-cells-in-tissue-regeneration-and-cancer
#16
REVIEW
Bing Zhang, Ya-Chieh Hsu
Most regenerative tissues employ transit-amplifying cells (TACs) that are positioned in between stem cells and differentiated progeny. In a classical hierarchical model, stem cells undergo limited divisions to produce TACs, which then proliferate rapidly to expand the system and produce diverse differentiated cell types. Although TACs are indispensable for generating tissues, they have been largely viewed as a transit point between stem cells and downstream lineages. Studies in the past few years, however, have revealed some fascinating biology and unanticipated functions of TACs...
September 2017: Wiley Interdisciplinary Reviews. Developmental Biology
https://www.readbyqxmd.com/read/28670518/hair-follicle-generation-by-injections-of-adult-human-follicular-epithelial-and-dermal-papilla-cells-into-nude-mice
#17
Mohammadali Nilforoushzadeh, Elham Rahimi Jameh, Fariba Jaffary, Ehsan Abolhasani, Gelavizh Keshtmand, Hajar Zarkob, Parvaneh Mohammadi, Nasser Aghdami
OBJECTIVE: Dermal papilla and hair epithelial stem cells regulate hair formation and the growth cycle. Damage to or loss of these cells can cause hair loss. Although several studies claim to reconstitute hairs using rodent cells in an animal model, additional research is needed to develop a stable human hair follicle reconstitution protocol. In this study, we have evaluated hair induction by injecting adult cultured human dermal papilla cells and a mixture of hair epithelial and dermal papilla cells in a mouse model...
July 2017: Cell Journal
https://www.readbyqxmd.com/read/28647027/targeting-of-stem-cell-niches-using-unconventional-genetic-tools
#18
Vasily V Shinin, Andrey A Panteleyev
Maintenance of hair follicle (HF) stem cell quiescence and self-renewal are key functions of a specific cellular niche represented by the HF bulge and adjacent cell populations. The unique context of this niche is crucial for normal HF functioning, but mechanisms implicated in its maintenance are still not quite clear. The Letter to the Editor by Sada et al. introduces a novel Slc1a3-CreER genetic mouse model which, in contrast to previously reported marking tools, selectively and highly efficiently demarcates the telogen bulge inner layer, one of the critical structural components of the bulge stem cell niche...
July 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28636968/t-regulating-hair-follicle-stem-cells
#19
Maria Maryanovich, Paul S Frenette
Regulatory T (Treg) cells are well known to modulate inflammatory responses. In a recent issue of Cell, Ali et al. (2017) reveal a function for Treg cells in stem cell maintenance by showing that skin-resident Foxp3(+) Treg cells preferentially localize to the hair follicle stem cell (HFSC) niche to control HFSC-mediated hair regeneration.
June 20, 2017: Immunity
https://www.readbyqxmd.com/read/28630424/characterization-of-slow-cycling-corneal-limbal-epithelial-cells-identifies-putative-stem-cell-markers
#20
R Sartaj, C Zhang, P Wan, Z Pasha, V Guaiquil, A Liu, J Liu, Y Luo, E Fuchs, M I Rosenblatt
In order to identify reliable markers of corneal epithelial stem cells, we employed an inducible transgenic "pulse-chase" murine model (K5Tta × TRE-H2BGFP) to localize, purify, and characterize slow cycling cells in the cornea. The retention of GFP labeling in slowly dividing cells allowed for localization of these cells to the corneal limbus and their subsequent purification by FACS. Transcriptome analysis from slow cycling cells identified differentially expressed genes when comparing to GFP(-) faster-dividing cells...
June 19, 2017: Scientific Reports
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