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Bolormaa S, Swan AA, Brown DJ, Hatcher S, Moghaddar N, van der Werf JH, Goddard ME, Daetwyler HD. Multiple-trait QTL mapping and genomic prediction for wool traits in sheep. Genet Sel Evol 2017; 49:62. [PMID: 28810834 PMCID: PMC5558709 DOI: 10.1186/s12711-017-0337-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 07/31/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The application of genomic selection to sheep breeding could lead to substantial increases in profitability of wool production due to the availability of accurate breeding values from single nucleotide polymorphism (SNP) data. Several key traits determine the value of wool and influence a sheep's susceptibility to fleece rot and fly strike. Our aim was to predict genomic estimated breeding values (GEBV) and to compare three methods of combining information across traits to map polymorphisms that affect these traits. METHODS GEBV for 5726 Merino and Merino crossbred sheep were calculated using BayesR and genomic best linear unbiased prediction (GBLUP) with real and imputed 510,174 SNPs for 22 traits (at yearling and adult ages) including wool production and quality, and breech conformation traits that are associated with susceptibility to fly strike. Accuracies of these GEBV were assessed using fivefold cross-validation. We also devised and compared three approximate multi-trait analyses to map pleiotropic quantitative trait loci (QTL): a multi-trait genome-wide association study and two multi-trait methods that use the output from BayesR analyses. One BayesR method used local GEBV for each trait, while the other used the posterior probabilities that a SNP had an effect on each trait. RESULTS BayesR and GBLUP resulted in similar average GEBV accuracies across traits (~0.22). BayesR accuracies were highest for wool yield and fibre diameter (>0.40) and lowest for skin quality and dag score (<0.10). Generally, accuracy was higher for traits with larger reference populations and higher heritability. In total, the three multi-trait analyses identified 206 putative QTL, of which 20 were common to the three analyses. The two BayesR multi-trait approaches mapped QTL in a more defined manner than the multi-trait GWAS. We identified genes with known effects on hair growth (i.e. FGF5, STAT3, KRT86, and ALX4) near SNPs with pleiotropic effects on wool traits. CONCLUSIONS The mean accuracy of genomic prediction across wool traits was around 0.22. The three multi-trait analyses identified 206 putative QTL across the ovine genome. Detailed phenotypic information helped to identify likely candidate genes.
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Affiliation(s)
- Sunduimijid Bolormaa
- Agriculture Victoria Research, AgriBio Centre, Bundoora, VIC, 3083, Australia. .,Cooperative Research Centre for Sheep Industry Innovation, Armidale, NSW, 2351, Australia.
| | - Andrew A Swan
- Animal Genetics and Breeding Unit, University of New England, Armidale, NSW, 2351, Australia.,Cooperative Research Centre for Sheep Industry Innovation, Armidale, NSW, 2351, Australia
| | - Daniel J Brown
- Animal Genetics and Breeding Unit, University of New England, Armidale, NSW, 2351, Australia.,Cooperative Research Centre for Sheep Industry Innovation, Armidale, NSW, 2351, Australia
| | - Sue Hatcher
- NSW Department of Primary Industries, Orange Agricultural Institute, Orange, NSW, 2800, Australia.,Cooperative Research Centre for Sheep Industry Innovation, Armidale, NSW, 2351, Australia
| | - Nasir Moghaddar
- School of Environmental and Rural Science, University of New England, Armidale, NSW, 2351, Australia.,Cooperative Research Centre for Sheep Industry Innovation, Armidale, NSW, 2351, Australia
| | - Julius H van der Werf
- School of Environmental and Rural Science, University of New England, Armidale, NSW, 2351, Australia.,Cooperative Research Centre for Sheep Industry Innovation, Armidale, NSW, 2351, Australia
| | - Michael E Goddard
- Agriculture Victoria Research, AgriBio Centre, Bundoora, VIC, 3083, Australia.,School of Land and Environment, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Hans D Daetwyler
- Agriculture Victoria Research, AgriBio Centre, Bundoora, VIC, 3083, Australia.,School of Applied Systems Biology, La Trobe University, Bundoora, VIC, 3086, Australia.,Cooperative Research Centre for Sheep Industry Innovation, Armidale, NSW, 2351, Australia
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van den Broek LJ, Bergers LIJC, Reijnders CMA, Gibbs S. Progress and Future Prospectives in Skin-on-Chip Development with Emphasis on the use of Different Cell Types and Technical Challenges. Stem Cell Rev Rep 2017; 13:418-429. [PMID: 28536890 PMCID: PMC5486511 DOI: 10.1007/s12015-017-9737-1] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Understanding the healthy and diseased state of skin is important in many areas of basic and applied research. Although the field of skin tissue engineering has advanced greatly over the last years, current in vitro skin models still do not mimic the complexity of the human skin. Skin-on-chip and induced pluripotent stem cells (iPSC) might be key technologies to improve in vitro skin models. This review summarizes the state of the art of in vitro skin models with regard to cell sources (primary, cell line, iPSC) and microfluidic devices. It can be concluded that iPSC have the potential to be differentiated into many kinds of immunologically matched cells and skin-on-chip technology might lead to more physiologically relevant skin models due to the controlled environment, possible exchange of immune cells, and an increased barrier function. Therefore the combination of iPSC and skin-on-chip is expected to lead to superior healthy and diseased in vitro skin models.
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Affiliation(s)
| | | | | | - Susan Gibbs
- Department of Dermatology, VU University Medical Center, Amsterdam, The Netherlands.
- Department of Oral Cell Biology, Academic Center for Dentistry Amsterdam, University of Amsterdam and VU University, Amsterdam, The Netherlands.
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Purification and differentiation of human adipose-derived stem cells by membrane filtration and membrane migration methods. Sci Rep 2017; 7:40069. [PMID: 28071738 PMCID: PMC5223180 DOI: 10.1038/srep40069] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 11/30/2016] [Indexed: 12/11/2022] Open
Abstract
Human adipose-derived stem cells (hADSCs) are easily isolated from fat tissue without ethical concerns, but differ in purity, pluripotency, differentiation ability, and stem cell marker expression, depending on the isolation method. We isolated hADSCs from a primary fat tissue solution using: (1) conventional culture, (2) a membrane filtration method, (3) a membrane migration method where the primary cell solution was permeated through membranes, adhered hADSCs were cultured, and hADSCs migrated out from the membranes. Expression of mesenchymal stem cell markers and pluripotency genes, and osteogenic differentiation were compared for hADSCs isolated by different methods using nylon mesh filter membranes with pore sizes ranging from 11 to 80 μm. hADSCs isolated by the membrane migration method had the highest MSC surface marker expression and efficient differentiation into osteoblasts. Osteogenic differentiation ability of hADSCs and MSC surface marker expression were correlated, but osteogenic differentiation ability and pluripotent gene expression were not.
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Sugiyama-Nakagiri Y, Fujimura T, Moriwaki S. Induction of Skin-Derived Precursor Cells from Human Induced Pluripotent Stem Cells. PLoS One 2016; 11:e0168451. [PMID: 27992514 PMCID: PMC5167543 DOI: 10.1371/journal.pone.0168451] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 12/01/2016] [Indexed: 12/17/2022] Open
Abstract
The generation of full thickness human skin from dissociated cells is an attractive approach not only for treating skin diseases, but also for treating many systemic disorders. However, it is currently not possible to obtain an unlimited number of skin dermal cells. The goal of this study was to develop a procedure to produce skin dermal stem cells from induced pluripotent stem cells (iPSCs). Skin-derived precursor cells (SKPs) were isolated as adult dermal precursors that could differentiate into both neural and mesodermal progenies and could reconstitute the dermis. Thus, we attempted to generate SKPs from iPSCs that could reconstitute the skin dermis. Human iPSCs were initially cultured with recombinant noggin and SB431542, an inhibitor of activin/nodal and TGFβ signaling, to induce neural crest progenitor cells. Those cells were then treated with SKP medium that included CHIR99021, a WNT signal activator. The induction efficacy from neural crest progenitor cells to SKPs was more than 97%. No other modifiers tested were able to induce those cells. Those human iPSC-derived SKPs (hiPSC-SKPs) showed a similar gene expression signature to SKPs isolated from human skin dermis. Human iPSC-SKPs differentiated into neural and mesodermal progenies, including adipocytes, skeletogenic cell types and Schwann cells. Moreover, they could be induced to follicular type keratinization when co-cultured with human epidermal keratinocytes. We here provide a new efficient protocol to create human skin dermal stem cells from hiPSCs that could contribute to the treatment of various skin disorders.
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Mohammadi P, Youssef KK, Abbasalizadeh S, Baharvand H, Aghdami N. Human Hair Reconstruction: Close, But Yet So Far. Stem Cells Dev 2016; 25:1767-1779. [PMID: 27649771 DOI: 10.1089/scd.2016.0137] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Billions of dollars are annually invested in pharmaceutical industry and cosmetic sector with intent to develop new drugs and treatment strategies for alopecia. Because the hair looks an important characteristic of humans-an effective appendage in perception, expression of beauty, and preservation of self-esteem-the global market for hair loss treatment products is exponentially increasing. However, current methods to treat hair loss endure yet multiple challenges, such as unfavorable outcomes, nonpermanent and patient-dependent results, as well as unpredictable impacts, which limit their application. Over recent years, remarkable advances in the fields of regenerative medicine and hair tissue engineering have raised new hopes for introducing novel cell-based approaches to treat hair loss. Through cell-based approaches, it is possible to produce hair-like structures in the laboratory setting or manipulate cells in their native niche (in vivo lineage reprogramming) to reconstruct the hair follicle. However, challenging issues still exist with the functionality of cultured human hair cells, the proper selection of nonhair cell sources in cases of shortage of donor hair, and the development of defined culture conditions. Moreover, in the case of in vivo lineage reprogramming, selecting appropriate induction factors and their efficient delivery to guide resident cells into a hair fate-with the aim of reconstructing functional hair-still needs further explorations. In this study, we highlight recent advances and current challenges in hair loss treatment using cell-based approaches and provide novel insights for crucial steps, which must be taken into account to develop reproducible, safe, and efficient cell-based treatment.
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Affiliation(s)
- Parvaneh Mohammadi
- 1 Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology , ACECR, Tehran, Iran .,2 Department of Developmental Biology, University of Science and Culture , Tehran, Iran
| | - Khalil Kass Youssef
- 3 Department of Developmental Neurobiology, Instituto de Neurociencias CSIC-UMH , San Juan de Alicante, Spain
| | - Saeed Abbasalizadeh
- 1 Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology , ACECR, Tehran, Iran
| | - Hossein Baharvand
- 1 Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology , ACECR, Tehran, Iran .,2 Department of Developmental Biology, University of Science and Culture , Tehran, Iran
| | - Nasser Aghdami
- 1 Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology , ACECR, Tehran, Iran
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Li KC, Huang LLH, Liang JH, Chan MC. Simple approach to three-color two-photon microscopy by a fiber-optic wavelength convertor. BIOMEDICAL OPTICS EXPRESS 2016; 7:4803-4815. [PMID: 27896017 PMCID: PMC5119617 DOI: 10.1364/boe.7.004803] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 10/13/2016] [Accepted: 10/25/2016] [Indexed: 05/26/2023]
Abstract
A simple approach to multi-color two-photon microscopy of the red, green, and blue fluorescent indicators was reported based on an ultra-compact 1.03-μm femtosecond laser and a nonlinear fiber. Inside the nonlinear fiber, the 1.03-μm laser pulses were simultaneously blue-shifted to 0.6~0.8 μm and red-shifted to 1.2~1.4 μm region by the Cherenkov radiation and fiber Raman gain effects. The wavelength-shifted 0.6~0.8 μm and 1.2~1.4 μm radiations were co-propagated with the residual non-converted 1.03-μm pulses inside the same nonlinear fiber to form a fiber-output three-color femtosecond source. The application of the multi-wavelength sources on multi-color two-photon fluorescence microscopy were also demonstrated. Overall, due to simple system configuration, convenient wavelength conversion, easy wavelength tunability within the entire 0.7~1.35 μm bio-penetration window and less requirement for high power and bulky light sources, the simple approach to multi-color two-photon microscopy could be widely applicable as an easily implemented and excellent research tool for future biomedical and possibly even clinical applications.
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Affiliation(s)
- Kuen-Che Li
- College of Photonics, National Chiao-Tung University, Taiwan
- Equal contribution
| | - Lynn L. H. Huang
- Department of Biotechnology and Bioindustry Sciences, National Cheng Kung University, Taiwan
- Institute of Biotechnology, National Cheng Kung University, Taiwan
- Research Center of Excellence in Regenerative Medicine, National Cheng Kung University, Taiwan
- Equal contribution
| | - Jhih-Hao Liang
- Institute of Biotechnology, National Cheng Kung University, Taiwan
| | - Ming-Che Chan
- College of Photonics, National Chiao-Tung University, Taiwan
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Mordant P, Nakajima D, Kalaf R, Iskender I, Maahs L, Behrens P, Coutinho R, Iyer RK, Davies JE, Cypel M, Liu M, Waddell TK, Keshavjee S. Mesenchymal stem cell treatment is associated with decreased perfusate concentration of interleukin-8 during ex vivo perfusion of donor lungs after 18-hour preservation. J Heart Lung Transplant 2016; 35:1245-1254. [DOI: 10.1016/j.healun.2016.04.017] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 03/28/2016] [Accepted: 04/25/2016] [Indexed: 01/16/2023] Open
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Stem cell regenerative potential for plastic and reconstructive surgery. Cell Tissue Bank 2016; 17:735-744. [PMID: 27604466 DOI: 10.1007/s10561-016-9583-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 09/01/2016] [Indexed: 12/20/2022]
Abstract
Stem cells represent heterogeneous population of undifferentiated cells with unique characteristics of long term self renewal and plasticity. Moreover, they are capable of active migration to diseased tissues, secretion of different bioactive molecules, and they have immunosuppressive potential as well. They occur in all tissues through life and are involved in process of embryogenesis and regeneration. During last decades stem cells attracted significant attention in each field of medicine, including plastic and reconstructive surgery. The main goal of the present review article is to present and discuss the potential of stem cells and to provide information about their safe utilization in chronic wounds and fistulae healing, scar management, breast reconstruction, as well as in bone, tendon and peripheral nerve regeneration.
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Abstract
The elucidation of cancer pathogenesis has been hindered by limited access to patient samples, tumor heterogeneity and the lack of reliable model organisms. Characterized by their ability to self-renew indefinitely and differentiate into all cell lineages of an organism, pluripotent stem cells (PSCs), including embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs), provide a powerful and unlimited source to generate differentiated cells that can be used to study disease biology, facilitate drug discovery and development, and provide key insights for developing personalized therapies. This article reviews the recent developments and technologies converting PSCs into clinically relevant model systems for cancer research.
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Affiliation(s)
- Julian Gingold
- Women's Health Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA
| | - Ruoji Zhou
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA; The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA
| | - Ihor R Lemischka
- Department of Developmental and Regenerative Biology, Department of Pharmacology and System Therapeutics, The Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Dung-Fang Lee
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA; The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA; Center for Stem Cell and Regenerative Medicine, The Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
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Sabapathy V, Kumar S. hiPSC-derived iMSCs: NextGen MSCs as an advanced therapeutically active cell resource for regenerative medicine. J Cell Mol Med 2016; 20:1571-88. [PMID: 27097531 PMCID: PMC4956943 DOI: 10.1111/jcmm.12839] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 02/14/2016] [Indexed: 12/18/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are being assessed for ameliorating the severity of graft‐versus‐host disease, autoimmune conditions, musculoskeletal injuries and cardiovascular diseases. While most of these clinical therapeutic applications require substantial cell quantities, the number of MSCs that can be obtained initially from a single donor remains limited. The utility of MSCs derived from human‐induced pluripotent stem cells (hiPSCs) has been shown in recent pre‐clinical studies. Since adult MSCs have limited capability regarding proliferation, the quantum of bioactive factor secretion and immunomodulation ability may be constrained. Hence, the alternate source of MSCs is being considered to replace the commonly used adult tissue‐derived MSCs. The MSCs have been obtained from various adult and foetal tissues. The hiPSC‐derived MSCs (iMSCs) are transpiring as an attractive source of MSCs because during reprogramming process, cells undergo rejuvination, exhibiting better cellular vitality such as survival, proliferation and differentiations potentials. The autologous iMSCs could be considered as an inexhaustible source of MSCs that could be used to meet the unmet clinical needs. Human‐induced PSC‐derived MSCs are reported to be superior when compared to the adult MSCs regarding cell proliferation, immunomodulation, cytokines profiles, microenvironment modulating exosomes and bioactive paracrine factors secretion. Strategies such as derivation and propagation of iMSCs in chemically defined culture conditions and use of footprint‐free safer reprogramming strategies have contributed towards the development of clinically relevant cell types. In this review, the role of iPSC‐derived mesenchymal stromal cells (iMSCs) as an alternate source of therapeutically active MSCs has been described. Additionally, we also describe the role of iMSCs in regenerative medical applications, the necessary strategies, and the regulatory policies that have to be enforced to render iMSC's effectiveness in translational medicine.
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Affiliation(s)
- Vikram Sabapathy
- Center for Stem Cell Research, A Unit of inStem Bengaluru, Christian Medical College, Vellore, Tamil Nadu, India
| | - Sanjay Kumar
- Center for Stem Cell Research, A Unit of inStem Bengaluru, Christian Medical College, Vellore, Tamil Nadu, India
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Ojeh N, Pastar I, Tomic-Canic M, Stojadinovic O. Stem Cells in Skin Regeneration, Wound Healing, and Their Clinical Applications. Int J Mol Sci 2015; 16:25476-501. [PMID: 26512657 PMCID: PMC4632811 DOI: 10.3390/ijms161025476] [Citation(s) in RCA: 178] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 10/15/2015] [Accepted: 10/20/2015] [Indexed: 12/18/2022] Open
Abstract
The skin is the largest organ of the body and has an array of functions. Skin compartments, epidermis, and hair follicles house stem cells that are indispensable for skin homeostasis and regeneration. These stem cells also contribute to wound repair, resulting in restoration of tissue integrity and function of damaged tissue. Unsuccessful wound healing processes often lead to non-healing wounds. Chronic wounds are caused by depletion of stem cells and a variety of other cellular and molecular mechanisms, many of which are still poorly understood. Current chronic wound therapies are limited, so the search to develop better therapeutic strategies is ongoing. Adult stem cells are gaining recognition as potential candidates for numerous skin pathologies. In this review, we will discuss epidermal and other stem cells present in the skin, and highlight some of the therapeutic applications of epidermal stem cells and other adult stem cells as tools for cell/scaffold-based therapies for non-healing wounds and other skin disorders. We will also discuss emerging concepts and offer some perspectives on how skin tissue-engineered products can be optimized to provide efficacious therapy in cutaneous repair and regeneration.
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Affiliation(s)
- Nkemcho Ojeh
- Faculty of Medical Sciences, the University of the West Indies, Cave Hill Campus, P.O. Box 64, Bridgetown BB 11000, St. Michael, Barbados; E-Mail:
| | - Irena Pastar
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller Medical School, 1600 NW 10th Avenue, RMSB, Room 2023-A, Miami, FL 33136, USA; E-Mails: (I.P.); (M.T.-C.)
| | - Marjana Tomic-Canic
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller Medical School, 1600 NW 10th Avenue, RMSB, Room 2023-A, Miami, FL 33136, USA; E-Mails: (I.P.); (M.T.-C.)
| | - Olivera Stojadinovic
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller Medical School, 1600 NW 10th Avenue, RMSB, Room 2023-A, Miami, FL 33136, USA; E-Mails: (I.P.); (M.T.-C.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1-305-243-7295; Fax: +1-305-243-6191
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Abstract
Over 100 million patients acquire scars in the industrialized world each year, primarily as a result of elective operations. Although undefined, the global incidence of scarring is even larger, extending to significant numbers of burn and other trauma-related wounds. Scars have the potential to exert a profound psychological and physical impact on the individual. Beyond aesthetic considerations and potential disfigurement, scarring can result in restriction of movement and reduced quality of life. The formation of a scar following skin injury is a consequence of wound healing occurring through reparative rather than regenerative mechanisms. In this article, the authors review the basic stages of wound healing; differences between adult and fetal wound healing; various mechanical, genetic, and pharmacologic strategies to reduce scarring; and the biology of skin stem/progenitor cells that may hold the key to scarless regeneration.
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Duscher D, Barrera J, Wong VW, Maan ZN, Whittam AJ, Januszyk M, Gurtner GC. Stem Cells in Wound Healing: The Future of Regenerative Medicine? A Mini-Review. Gerontology 2015; 62:216-25. [PMID: 26045256 DOI: 10.1159/000381877] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 03/25/2015] [Indexed: 01/13/2023] Open
Abstract
The increased risk of disease and decreased capacity to respond to tissue insult in the setting of aging results from complex changes in homeostatic mechanisms, including the regulation of oxidative stress and cellular heterogeneity. In aged skin, the healing capacity is markedly diminished resulting in a high risk for chronic wounds. Stem cell-based therapies have the potential to enhance cutaneous regeneration, largely through trophic and paracrine activity. Candidate cell populations for therapeutic application include adult mesenchymal stem cells, embryonic stem cells and induced pluripotent stem cells. Autologous cell-based approaches are ideal to minimize immune rejection but may be limited by the declining cellular function associated with aging. One strategy to overcome age-related impairments in various stem cell populations is to identify and enrich with functionally superior stem cell subsets via single cell transcriptomics. Another approach is to optimize cell delivery to the harsh environment of aged wounds via scaffold-based cell applications to enhance engraftment and paracrine activity of therapeutic stem cells. In this review, we shed light on challenges and recent advances surrounding stem cell therapies for wound healing and discuss limitations for their clinical adoption.
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Affiliation(s)
- Dominik Duscher
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, Calif., USA
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Higuchi A, Wang CT, Ling QD, Lee HHC, Kumar SS, Chang Y, Alarfaj AA, Munusamy MA, Hsu ST, Wu GJ, Umezawa A. A hybrid-membrane migration method to isolate high-purity adipose-derived stem cells from fat tissues. Sci Rep 2015; 5:10217. [PMID: 25970301 PMCID: PMC4429558 DOI: 10.1038/srep10217] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 04/02/2015] [Indexed: 01/03/2023] Open
Abstract
Human adipose-derived stem cells (hADSCs) exhibit heterogeneous characteristics, indicating various genotypes and differentiation abilities. The isolated hADSCs can possess different purity levels and divergent properties depending on the purification methods used. We developed a hybrid-membrane migration method that purifies hADSCs from a fat tissue solution with extremely high purity and pluripotency. A primary fat-tissue solution was permeated through the porous membranes with a pore size from 8 to 25 μm, and the membranes were incubated in cell culture medium for 15-18 days. The hADSCs that migrated from the membranes contained an extremely high percentage (e.g., >98%) of cells positive for mesenchymal stem cell markers and showed almost one order of magnitude higher expression of some pluripotency genes (Oct4, Sox2, Klf4 and Nanog) compared with cells isolated using the conventional culture method.
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Affiliation(s)
- Akon Higuchi
- 1] Department of Chemical and Materials Engineering, National Central University, Jhong-li, Taoyuan, Taiwan [2] Department of Botany and Microbiology, King Saud University, Riyadh, Saudi Arabia [3] Department of Reproduction, National Research Institute for Child Health and Development, Tokyo, Japan [4] Nano Medical Engineering Laboratory, RIKEN, Wako, Saitama, Japan
| | - Ching-Tang Wang
- Department of Chemical and Materials Engineering, National Central University, Jhong-li, Taoyuan, Taiwan
| | - Qing-Dong Ling
- 1] Institute of Systems Biology and Bioinformatics, National Central University, Jhong-li, Taoyuan, Taiwan [2] Cathay Medical Research Institute, Cathay General Hospital, Taipei, Taiwan
| | | | - S Suresh Kumar
- Department of Medical Microbiology and Parasitology, Universities Putra Malaysia, Slangor, Malaysia
| | - Yung Chang
- Department of Chemical Engineering, R&D Center for Membrane Technology, Chung Yuan Christian University, Jhong-li, Taoyuan, Taiwan
| | - Abdullah A Alarfaj
- Department of Botany and Microbiology, King Saud University, Riyadh, Saudi Arabia
| | - Murugan A Munusamy
- Department of Botany and Microbiology, King Saud University, Riyadh, Saudi Arabia
| | - Shih-Tien Hsu
- Department of Internal Medicine, Taiwan Landseed Hospital, Pingjen, Taoyuan, Taiwan
| | - Gwo-Jang Wu
- Graduate Institute of Medical Sciences and Department of Obstetrics &Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Akihiko Umezawa
- Department of Reproduction, National Research Institute for Child Health and Development, Tokyo, Japan
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Hilmi ABM, Halim AS. Vital roles of stem cells and biomaterials in skin tissue engineering. World J Stem Cells 2015; 7:428-436. [PMID: 25815126 PMCID: PMC4369498 DOI: 10.4252/wjsc.v7.i2.428] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/29/2014] [Accepted: 10/27/2014] [Indexed: 02/06/2023] Open
Abstract
Tissue engineering essentially refers to technology for growing new human tissue and is distinct from regenerative medicine. Currently, pieces of skin are already being fabricated for clinical use and many other tissue types may be fabricated in the future. Tissue engineering was first defined in 1987 by the United States National Science Foundation which critically discussed the future targets of bioengineering research and its consequences. The principles of tissue engineering are to initiate cell cultures in vitro, grow them on scaffolds in situ and transplant the composite into a recipient in vivo. From the beginning, scaffolds have been necessary in tissue engineering applications. Regardless, the latest technology has redirected established approaches by omitting scaffolds. Currently, scientists from diverse research institutes are engineering skin without scaffolds. Due to their advantageous properties, stem cells have robustly transformed the tissue engineering field as part of an engineered bilayered skin substitute that will later be discussed in detail. Additionally, utilizing biomaterials or skin replacement products in skin tissue engineering as strategy to successfully direct cell proliferation and differentiation as well as to optimize the safety of handling during grafting is beneficial. This approach has also led to the cells’ application in developing the novel skin substitute that will be briefly explained in this review.
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From marrow to matrix: novel gene and cell therapies for epidermolysis bullosa. Mol Ther 2015; 23:987-992. [PMID: 25803200 DOI: 10.1038/mt.2015.47] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 03/11/2015] [Indexed: 12/22/2022] Open
Abstract
Epidermolysis bullosa encompasses a group of inherited connective tissue disorders that range from mild to lethal. There is no cure, and current treatment is limited to palliative care that is largely ineffective in treating the systemic, life-threatening pathology associated with the most severe forms of the disease. Although allogeneic cell- and protein-based therapies have shown promise, both novel and combinatorial approaches will undoubtedly be required to totally alleviate the disorder. Progress in the development of next-generation therapies that synergize targeted gene-correction and induced pluripotent stem cell technologies offers exciting prospects for personalized, off-the-shelf treatment options that could avoid many of the limitations associated with current allogeneic cell-based therapies. Although no single therapeutic avenue has achieved complete success, each has substantially increased our collective understanding of the complex biology underlying the disease, both providing mechanistic insights and uncovering new hurdles that must be overcome.
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Peng Y, Xuan M, Leung VYL, Cheng B. Stem cells and aberrant signaling of molecular systems in skin aging. Ageing Res Rev 2015; 19:8-21. [PMID: 25446806 DOI: 10.1016/j.arr.2014.10.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 10/24/2014] [Accepted: 10/30/2014] [Indexed: 02/07/2023]
Abstract
The skin is the body's largest organ and it is able to self-repair throughout an individual's life. With advanced age, skin is prone to degenerate in response to damage. Although cosmetic surgery has been widely adopted to rejuvinate skin, we are far from a clear understanding of the mechanisms responsible for skin aging. Recently, adult skin-resident stem/progenitor cells, growth arrest, senescence or apoptotic death and dysfunction caused by alterations in key signaling genes, such as Ras/Raf/MEK/ERK, PI3K/Akt-kinases, Wnt, p21 and p53, have been shown to play a vital role in skin regeneration. Simultaneously, enhanced telomere attrition, hormone exhaustion, oxidative stress, genetic events and ultraviolet radiation exposure that result in severe DNA damage, genomic instability and epigenetic mutations also contribute to skin aging. Therefore, cell replacement and targeting of the molecular systems found in skin hold great promise for controlling or even curing skin aging.
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Affiliation(s)
- Yan Peng
- Department of Orthopaedics & Traumatology, LKS Faculty of Medicine, The University of Hong Kong, L9-12, Lab block, Hong Kong, SAR, China; Department of Plastic Surgery, Guangzhou General Hospital of Guangzhou command, The Key Laboratory of Trauma Treatment & Tissue Repair of Tropical Area, PLA, GuangDong, 510010, PR China
| | - Min Xuan
- Southern Medical University, Guangzhou, 510010, PR China; Department of Plastic Surgery, Guangzhou General Hospital of Guangzhou command, The Key Laboratory of Trauma Treatment & Tissue Repair of Tropical Area, PLA, GuangDong, 510010, PR China
| | - Victor Y L Leung
- Department of Orthopaedics & Traumatology, LKS Faculty of Medicine, The University of Hong Kong, L9-12, Lab block, Hong Kong, SAR, China.
| | - Biao Cheng
- Southern Medical University, Guangzhou, 510010, PR China.
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Ou Y, Lv CJ, Yu W, Mao ZW, Wan LS, Xu ZK. Fabrication of perforated isoporous membranes via a transfer-free strategy: enabling high-resolution separation of cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:22400-22407. [PMID: 25421306 DOI: 10.1021/am506419z] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Thin perforated membranes with ordered pores are ideal barriers for high-resolution and high-efficiency selective transport and separation of biological species. However, for self-assembled thin membranes with a thickness less than several micrometers, an additional step of transferring the membranes onto porous supports is generally required. In this article, we present a facile transfer-free strategy for fabrication of robust perforated composite membranes via the breath figure process, and for the first time, demonstrate the application of the membranes in high-resolution cell separation of yeasts and lactobacilli without external pressure, achieving almost 100% rejection of yeasts and more than 70% recovery of lactobacilli with excellent viability. The avoidance of the transfer step simplifies the fabrication procedure of composite membranes and greatly improves the membrane homogeneity. Moreover, the introduction of an elastic triblock copolymer increases the interfacial strength between the membrane and the support, and allows the preservation of composite membranes in a dry state. Such perforated ordered membranes can also be applied in other size-based separation systems, enabling new opportunities in bioseparation and biosensors.
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Affiliation(s)
- Yang Ou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, and ‡State Key Laboratory of Chemical Engineering, Department of Chemical and Biochemical Engineering, Zhejiang University , Hangzhou 310027, People's Republic of China
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Jimenez F, Poblet E, Izeta A. Reflections on how wound healing-promoting effects of the hair follicle can be translated into clinical practice. Exp Dermatol 2014; 24:91-4. [DOI: 10.1111/exd.12521] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2014] [Indexed: 12/20/2022]
Affiliation(s)
| | - Enrique Poblet
- Department of Pathology; Hospital Universitario Reina Sofía; Murcia Spain
| | - Ander Izeta
- Tissue Engineering Laboratory; Instituto Biodonostia; Hospital Universitario Donostia; San Sebastián Spain
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Zielins ER, Atashroo DA, Maan ZN, Duscher D, Walmsley GG, Hu M, Senarath-Yapa K, McArdle A, Tevlin R, Wearda T, Paik KJ, Duldulao C, Hong WX, Gurtner GC, Longaker MT. Wound healing: an update. Regen Med 2014; 9:817-30. [DOI: 10.2217/rme.14.54] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Wounds, both chronic and acute, continue to be a tremendous socioeconomic burden. As such, technologies drawn from many disciplines within science and engineering are constantly being incorporated into innovative wound healing therapies. While many of these therapies are experimental, they have resulted in new insights into the pathophysiology of wound healing, and in turn the development of more specialized treatments for both normal and abnormal wound healing states. Herein, we review some of the emerging technologies that are currently being developed to aid and improve wound healing after cutaneous injury.
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Affiliation(s)
- Elizabeth R Zielins
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - David A Atashroo
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Zeshaan N Maan
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Dominik Duscher
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Graham G Walmsley
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Michael Hu
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
- Department of Surgery, John A Burns School of Medicine, University of Hawai'i, Honolulu, HI
| | - Kshemendra Senarath-Yapa
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Adrian McArdle
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Ruth Tevlin
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Taylor Wearda
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Kevin J Paik
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Christopher Duldulao
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Wan Xing Hong
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
- University of Central Florida College of Medicine, Orlando, FL, USA
| | - Geoffrey C Gurtner
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
| | - Michael T Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Division of Plastic Surgery, Stanford University School of Medicine, 257 Campus Drive, Stanford, CA 94305–5148, USA
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Abstract
INTRODUCTION Alopecia is a common concern encountered in the medical practice. Treatment approach varies according to the type and severity of alopecia. However, available treatment options have limited efficacy and several adverse effects. Presently, there are different treatment options being studied to overcome these limitations. Additionally, cellular pathways involved in the pathophysiology of alopecia are further being clarified to potentially target pathogenic molecules. AREAS COVERED We searched the literature for recently published articles discussing new treatment options as well as mechanisms involved in alopecia. We discuss the use of stem cells, growth factors, cellular pathways and robotic hair transplant, among other emerging therapies used for alopecia. EXPERT OPINION Future looks very promising and new effective treatments such as janus kinase inhibitors could possibly be available for alopecia areata. The stem-cell technology is advancing and companies involved in hair follicle neogenesis are starting clinical trials on patients with androgenetic alopecia.
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Affiliation(s)
- Leyre Falto-Aizpurua
- University of Miami, Miller School of Medicine, Department of Dermatology and Cutaneous Surgery , 1475 NW 12th Avenue, Suite 2175, Miami, FL 33136 , USA
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Plikus MV. At the dawn of hair research - testing the limits of hair follicle regeneration. Exp Dermatol 2014; 23:314-5. [DOI: 10.1111/exd.12334] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/29/2014] [Indexed: 12/17/2022]
Affiliation(s)
- Maksim V. Plikus
- Department of Developmental and Cell Biology; Sue and Bill Gross Stem Cell Research Center; University of California; Irvine CA 92697 USA
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Purba TS, Haslam IS, Poblet E, Jiménez F, Gandarillas A, Izeta A, Paus R. Human epithelial hair follicle stem cells and their progeny: current state of knowledge, the widening gap in translational research and future challenges. Bioessays 2014; 36:513-25. [PMID: 24665045 DOI: 10.1002/bies.201300166] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Epithelial hair follicle stem cells (eHFSCs) are required to generate, maintain and renew the continuously cycling hair follicle (HF), supply cells that produce the keratinized hair shaft and aid in the reepithelialization of injured skin. Therefore, their study is biologically and clinically important, from alopecia to carcinogenesis and regenerative medicine. However, human eHFSCs remain ill defined compared to their murine counterparts, and it is unclear which murine eHFSC markers really apply to the human HF. We address this by reviewing current concepts on human eHFSC biology, their immediate progeny and their molecular markers, focusing on Keratin 15 and 19, CD200, CD34, PHLDA1, and EpCAM/Ber-EP4. After delineating how human eHFSCs may be selectively targeted experimentally, we close by defining as yet unmet key challenges in human eHFSC research. The ultimate goal is to transfer emerging concepts from murine epithelial stem cell biology to human HF physiology and pathology.
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Affiliation(s)
- Talveen S Purba
- The Dermatology Centre, Salford Royal NHS Foundation Trust and Institute of Inflammation and Repair, University of Manchester, Manchester, United Kingdom
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