Abstract:
:Wnt signaling plays crucial role in regulating melanocyte stem cells/melanocyte differentiation in the hair follicle. However, how the Wnt signaling is balanced to be overactivated to control follicular melanocytes behavior remains unknown. Here, by using immunofluorescence staining, we showed that secreted frizzled-related protein 4 (sFRP4) is preferentially expressed in the skin epidermal cells rather than in melanocytes. By overexpression of sFRP4 in skin cells in vivo and in vitro, we found that sFRP4 attenuates activation of Wnt signaling, resulting in decrease of melanocytes differentiation in the regenerating hair follicle. Our findings unveiled a new regulator that involves modulating melanocytes differentiation through a paracrine mechanism in hair follicle, supplying a hope for potential therapeutic application to treat skin pigmentation disorders.
journal_name
Stem Cells Intjournal_title
Stem cells internationalauthors
Guo H,Lei M,Li Y,Liu Y,Tang Y,Xing Y,Deng F,Yang Kdoi
10.1155/2017/2857478subject
Has Abstractpub_date
2017-01-01 00:00:00pages
2857478eissn
1687-966Xissn
1687-9678journal_volume
2017pub_type
杂志文章abstract::The Wnt signalling pathway plays a crucial role in the development of the nervous system. This signalling cascade is initiated upon binding of the secreted Wnt ligand to a member of the family of frizzled receptors. In the present study, we analysed the presence of frizzled-4 in the enteric nervous system of human inf...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/9076823
更新日期:2016-01-01 00:00:00
abstract::Glioblastoma multiforme (GBM) is the most aggressive malignant brain tumor and a subpopulation of glioma stem-like cells (GSCs) is likely responsible for the invariable recurrence following maximum resection and chemoradiotherapy. As most GSCs that are located in the perivascular and perinecrotic niches should be remo...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2018/5387041
更新日期:2018-08-23 00:00:00
abstract::Retrotransposons comprise a significant fraction of mammalian genome with unclear functions. Increasing evidence shows that they are not just remnants of ancient retroviruses but play important roles in multiple biological processes. Retrotransposons are epigenetically silenced in most somatic tissues and become react...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2018/6239245
更新日期:2018-07-15 00:00:00
abstract::Chemically induced liver progenitors (CLiPs) have promising applications in liver regenerative medicine. Three-dimensional (3D) structures generated from liver progenitor cells possess wide applications in cell transplantation, disease model, and drug testing. Here, we report on the spontaneous formation of 3D cystic ...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/3975689
更新日期:2019-09-03 00:00:00
abstract::Tendon healing is fraught with complications such as reruptures and adhesion formation due to the formation of scar tissue at the injury site as opposed to the regeneration of native tissue. Stem cells are an attractive option in developing cell-based therapies to improve tendon healing. However, several questions rem...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2012/291431
更新日期:2012-01-01 00:00:00
abstract::A novel severe acute respiratory syndrome coronavirus (SARS-CoV-2) causing lethal acute respiratory disease emerged in December 2019. The World Health Organization named this disease "COVID-19" and declared it a pandemic on March 11, 2020. Many studies have shown that mesenchymal stem cells (MSCs) and their exosomes (...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2020/8835986
更新日期:2020-09-24 00:00:00
abstract::Blastocyst injection and morula aggregation are commonly used to evaluate stem cell pluripotency based on chimeric contribution of the stem cells. To assess the protocols for generating chimeras from stem cells, 8-cell mouse embryos were either injected or cocultured with mouse embryonic stem cells and induced pluripo...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2014/409021
更新日期:2014-01-01 00:00:00
abstract::Urine has become the source of choice for noninvasive renal epithelial cells and renal stem cells which can be used for generating induced pluripotent stem cells. The aim of this study was to generate a 3D nephrogenic progenitor cell model composed of three distinct cell types-urine-derived SIX2-positive renal progeni...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/3298432
更新日期:2019-05-02 00:00:00
abstract::Therapies based on transplantation of mesenchymal stromal cells (MSC) hold promise for the management of inflammatory disorders. In chronic Chagas disease cardiomyopathy (CCC), caused by chronic infection with Trypanosoma cruzi, the exacerbated immune response plays a critical pathophysiological role and can be modula...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/3282656
更新日期:2017-01-01 00:00:00
abstract:Objective:Mesenchymal stem cells (MSCs) are considered a promising therapy for wound healing. Here, we explored the role of c-Jun in diabetic wound healing using human umbilical cord-derived MSCs (hUC-MSCs). Methods:Freshly isolated hUC-MSCs were subjected to extensive in vitro subcultivation. The cell proliferative a...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/7430968
更新日期:2020-01-14 00:00:00
abstract::Osteoarthritis (OA) can be a debilitating degenerative disease and is the most common form of arthritic disease. There is a general consensus that current nonsurgical therapies are insufficient for younger OA sufferers who are not candidates for knee arthroplasties. Adipose-derived mesenchymal stem cells (MSCs) therap...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2015/421253
更新日期:2015-01-01 00:00:00
abstract::Mesenchymal stem cells (MSCs) are considered valuable sources for cell therapy because of their immune regulatory function. Here, we investigated the effects of tonsil-derived MSCs (T-MSCs) on the differentiation, maturation, and function of dendritic cells (DCs). We examined the effect of T-MSCs on differentiation an...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2015/106540
更新日期:2015-01-01 00:00:00
abstract::Adipogenesis is the process through which preadipocytes differentiate into adipocytes. During this process, the preadipocytes cease to proliferate, begin to accumulate lipid droplets, and develop morphologic and biochemical characteristics of mature adipocytes. Mesenchymal stem cells (MSCs) are a type of adult stem ce...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2020/8892300
更新日期:2020-08-12 00:00:00
abstract::Infertility is a condition that occurs very frequently and understanding what defines normal fertility is crucial to helping patients. Causes of infertility are numerous and the treatment often does not lead to desired pregnancy especially when there is a lack of functional gametes. In humans, the primordial germ cell...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2016/1741072
更新日期:2016-01-01 00:00:00
abstract::This study is aimed at investigating whether human umbilical cord mesenchymal stem cell- (hucMSC-) derived exosomes (hucMSC-exosomes) have a protective effect on acute myocardial infarction (AMI). Exosomes were characterized under transmission electron microscopy and the particles of exosomes were further examined thr...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2015/761643
更新日期:2015-01-01 00:00:00
abstract::Human bone marrow mesenchymal stem cells (hBM-MSCs) are the best characterized multipotent adult stem cells. Their self-renewal capacity, multilineage differentiation potential, and immunomodulatory properties have indicated that they can be used in many clinical therapies. In a previous work we studied the DNA methyl...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/5656701
更新日期:2016-01-01 00:00:00
abstract::Tumor microenvironment has been implicated in tumor development and progression. As a three-dimensional tumor microenvironment model, air liquid interface (ALI) organoid culture from oncogene transgenic mouse gastrointestinal tissues was recently produced. However, ALI organoid culture system from tissues of colorecta...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/7053872
更新日期:2016-01-01 00:00:00
abstract::The quality of life of patients with chronic wounds can be extremely poor and, therefore, over the past decades, great efforts have been made to develop efficient strategies to improve the healing process and the social impact associated with these conditions. Cell based therapy, as a modern tissue engineering strateg...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2015/195096
更新日期:2015-01-01 00:00:00
abstract:Objective:To investigate the effects of mesenchymal stem cells (MSCs) coated by the extracellular matrix (ECM) on wound healing in diabetic rats. Methods:Mesenchymal stem cells were cocultured with ECM. Cell viabilities were evaluated using MTT assay. The diabetes model was established using both STZ and high-glucose/...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/9564869
更新日期:2019-01-28 00:00:00
abstract::A stably established population of mouse bone marrow stromal cells (BMSCs) with self-renewal and multilineage differentiation potential was expanded in vitro for more than 50 passages. These cells express high levels of mesenchymal stem cell markers and can be differentiated into adipogenic, chondrogenic, and osteogen...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/8857057
更新日期:2020-12-24 00:00:00
abstract::Adipose tissues hold great promise in bone tissue engineering since they are available in large quantities as a waste material. The buccal fat pad (BFP) is a specialized adipose tissue that is easy to harvest and contains a rich blood supply, and its harvesting causes low complications for patients. This review focuse...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2017/8354640
更新日期:2017-01-01 00:00:00
abstract::In situ detection of MSCs remains difficult and warrants additional methods to aid with their characterization in vivo. Two-photon confocal laser scanning microscopy (TPM) and second harmonic generation (SHG) could fill this gap. Both techniques enable the detection of cells and extracellular structures, based on intr...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/5457132
更新日期:2016-01-01 00:00:00
abstract::Temporomandibular joint osteoarthritis (TMJ OA) is a degenerative disease, characterized by progressive cartilage degradation, subchondral bone remodeling, synovitis, and chronic pain. Due to the limited self-healing capacity in condylar cartilage, traditional clinical treatments have limited symptom-modifying and str...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2017/5979741
更新日期:2017-01-01 00:00:00
abstract:Background:Human dermal fibroblasts (HDFs) are the primary cells in skin and are associated with UVB-induced skin photoaging. Adipose-derived stem cells (ASCs) have been proposed as a treatment for skin aging. The goal of this study was to investigate paracrine mechanisms by which ASCs repair HDFs damage from UVB expos...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/8878370
更新日期:2020-12-17 00:00:00
abstract::Traditionally, human embryonic stem cells (hESCs) are cultured on inactivated live feeder cells. For clinical application using hESCs, there is a requirement to minimize the risk of contamination with animal components. Extracellular matrix (ECM) derived from feeder cells is the most natural way to provide xeno-free s...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2015/621057
更新日期:2015-01-01 00:00:00
abstract::Evidences have supported the pivotal roles of stem cells in mammary gland development. Many molecular markers have been identified to characterize mammary stem cells. Cellular fate mapping of mammary stem cells by lineage tracing has put unprecedented insights into the mammary stem cell biology, which identified two s...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2019/4247168
更新日期:2019-01-08 00:00:00
abstract::Bone tissue regeneration is considered to be the optimal solution for bone loss. However, diabetic patients have a greater risk of poor bone healing or bone grafting failure than nondiabetics. The purpose of this study was to investigate the influence of the complexes of an adipose-derived stem cell sheet (ASC sheet) ...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/2506463
更新日期:2019-07-31 00:00:00
abstract::Chicken embryonic stem cells (cESCs) obtained from stage X embryos provide a novel model for the study of avian embryonic development. A new way to maintain cESCs for a long period in vitro still remains unexplored. We found that the cESCs showed stem cell-like properties in vitro for a long term with the support of D...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2018/2157451
更新日期:2018-05-09 00:00:00
abstract::The purpose of the present study was to test the potential of mouse bone marrow-derived mesenchymal stem cells (BD-MSCs) in improving tear production in a mouse model of Sjögren's syndrome dry eye and to investigate the underlying mechanisms involved. NOD mice (n = 20) were randomized to receive i.p. injection of ster...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/3134543
更新日期:2017-01-01 00:00:00
abstract::During embryonic development pluripotency is progressively lost irreversibly by cell division, differentiation, migration and organ formation. Terminally differentiated cells do not generate other kinds of cells. Pluripotent stem cells are a great source of varying cell types that are used for tissue regeneration or r...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.4061/2011/619583
更新日期:2011-01-01 00:00:00