Abstract:
:Aging of population brings related social problems, such as muscle attenuation and regeneration barriers with increased aging. Muscle repair and regeneration depend on muscle stem cells (MuSCs). Obstructive sleep apnea (OSA) rises in the aging population. OSA leads to hypoxia and upper airway muscle injury. However, little is known about the effect of increasing age and hypoxia to the upper airway muscle. The genioglossus (GG) is the major dilator muscle to keep the upper airway open. Here, we reported that muscle fiber and MuSC function declined with aging in GG. Increasing age also decreased the migration and proliferation of GG MuSCs. p53 and p21 were high expressions both in muscle tissue and in GG MuSCs. We further found that hypoxia inhibited GG MuSC proliferation and decreased myogenic differentiation. Then, hypoxia enhanced the inhibition effect of aging to proliferation and differentiation. Finally, we investigated that hypoxia and aging interact to form a vicious circle with upregulation of p53 and p21. This vicious hypoxia plus aging damage accelerated upper airway muscle injury. Aging and hypoxia are the major damage elements in OSA patients, and we propose that the damage mechanism of hypoxia and aging in GG MuSCs will help to improve upper airway muscle regeneration.
journal_name
Stem Cells Intjournal_title
Stem cells internationalauthors
Zhu LY,Yu LM,Zhang WH,Deng JJ,Liu SF,Huang W,Zhang MH,Lu YQ,Han XX,Liu YHdoi
10.1155/2020/8412598subject
Has Abstractpub_date
2020-03-04 00:00:00pages
8412598eissn
1687-966Xissn
1687-9678journal_volume
2020pub_type
杂志文章abstract::Titanium (Ti) is widely used as a biomaterial for endosseous implants due to its relatively inert surface oxide layer that enables implanted devices the ability of assembling tissue reparative components that culminate in osseointegration. Topographic modifications in the form of micro- and nanoscaled structures signi...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/5214501
更新日期:2019-07-01 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::Left ventricular hypertrophy (LVH) is a strong predictor of adverse cardiovascular outcomes. It is the result of complex mechanisms that include not only an increase in protein synthesis and cell size but also proliferating cardiac progenitor cells and the influx of bone marrow-derived cells developing into cardiomyoc...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2016/5720758
更新日期:2016-01-01 00:00:00
abstract::Obesity, defined as a body mass index of 30 kg/m2 or above, has increased considerably in incidence and frequency within the United States and globally. Associated comorbidities including cardiovascular disease, type 2 diabetes mellitus, metabolic syndrome, and nonalcoholic fatty liver disease have led to a focus on t...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/4242130
更新日期:2020-06-10 00:00:00
abstract::The regeneration of the muscle tissue relies on the capacity of the satellite stem cell (SC) population to exit quiescence, divide asymmetrically, proliferate, and differentiate. In age-related muscle atrophy (sarcopenia) and several dystrophies, regeneration cannot compensate for the loss of muscle tissue. These diso...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/5980465
更新日期:2019-04-24 00:00:00
abstract::Adipose-derived stem cells (ASCs) are a promising therapeutic alternative for tissue repair in various clinical applications. However, restrictive cell survival, differential tissue integration, and undirected cell differentiation after transplantation in a hostile microenvironment are complications that require refin...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/5946527
更新日期:2017-01-01 00:00:00
abstract::Background and Objectives. Culture expanded multipotential stromal cells (MSCs) have considerable potential for bone regeneration therapy but their wider use is constrained by the lack of simple and predictive assays of functional potency. Extended passaging leads to loss of multipotency but speed of decline depends o...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/6129596
更新日期:2017-01-01 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::Mesenchymal stem cells (MSCs) are multipotent cells capable of differentiating into cells from the mesenchymal lineage. The hypoimmunogenic characteristic of MSCs has encouraged studies using allogeneic MSCs for the treatment of autoimmune diseases and inflammatory conditions. Promising preclinical results and the saf...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/9824698
更新日期:2017-01-01 00:00:00
abstract::Myocardial infarction is a leading cause of death among all cardiovascular diseases. Cell therapies using a cell population enriched with endothelial progenitor cells (EPCs), expanded CD133+ cells, have promise as a therapeutic option for the treatment of ischemic areas after infarction. Recently, secreted membrane ve...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/4802578
更新日期:2019-12-01 00:00:00
abstract:Background:To reduce morbidity to cleft patients, new approaches have been developed and here, we report for the first time the use of deciduous dental pulp stem cells (DDPSC) associated with a hydroxyapatite-collagen sponge (Bio-Oss Collagen® 250 mg, Geistlich) for closing alveolar defects during secondary dental erup...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2020/6234167
更新日期:2020-03-12 00:00:00
abstract::Sepsis, newly defined as a life-threatening organ dysfunction caused by a dysregulated host response to infection, is the most common cause of death in ICUs and one of the principal causes of death worldwide. Although substantial progress has been made in the understanding of fundamental mechanisms of sepsis, translat...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2017/7304121
更新日期:2017-01-01 00:00:00
abstract::Tumor hypoxia is associated with malignant biological phenotype including enhanced angiogenesis and metastasis. Hypoxia increases the expression of vascular endothelial cell growth factor (VEGF), which directly participates in angiogenesis by recruiting endothelial cells into hypoxic area and stimulating their prolife...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2016/6439864
更新日期:2016-01-01 00:00:00
abstract::The maternal part of the placenta, the decidua, consists of maternal immune cells, decidual stromal cells, and extravillous fetal trophoblasts. In a successful pregnancy, these cell compartments interact to provide an intricate balance between fetal tolerance and antimicrobial defense. These processes are still poorly...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/8010961
更新日期:2017-01-01 00:00:00
abstract:Purpose:To determine the effect of the isolation technique and location upon the phenotype of human corneal stroma-derived cells (CSCs). Methods:CSCs were isolated from the corneal stroma center and periphery using the explant or enzymatic digestion technique. The native tissue was stained for functional markers, whil...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/9275248
更新日期:2017-01-01 00:00:00
abstract::Chronic myeloid leukemia (CML) is a clonal myeloproliferative disorder. Current targeted therapies designed to inhibit the tyrosine kinase activity of the BCR-ABL oncoprotein have made a significant breakthrough in the treatment of CML patients. However, CML remains a chronic disease that a patient must manage for lif...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2013/724360
更新日期:2013-01-01 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::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::Left-right symmetry breaking is a complex developmental process and an important part of embryonic axis development. As of yet, the biophysical mechanism behind LR asymmetry establishment remains elusive for the overall asymmetry of embryos as well as for the organ-specific asymmetry. Here, we demonstrate that inheren...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2018/1848605
更新日期:2018-12-02 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::The cardiopulmonary system is made up of the heart and the lungs, with the core function of one complementing the other. The unimpeded and optimal cycling of blood between these two systems is pivotal to the overall function of the entire human body. Although the function of the cardiopulmonary system appears uncompli...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2018/3123961
更新日期:2018-04-29 00:00:00
abstract::Tendinopathy is a tendon disorder characterized by activity-related pain, local edema, focal tenderness to palpation, and decreased strength in the affected area. Tendinopathy is prevalent in both athletes and the general population, highlighting the need to elucidate the pathogenesis of this disorder. Current treatme...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2016/4076578
更新日期:2016-01-01 00:00:00
abstract::Skin is the largest human organ. Skin continually reconstructs itself to ensure its viability, integrity, and ability to provide protection for the body. Some areas of skin are continuously exposed to a variety of environmental stressors that can inflict direct and indirect damage to skin cell DNA. Skin homeostasis is...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2016/7370642
更新日期:2016-01-01 00:00:00
abstract::Organoid is a cell organization grown in a three-dimensional (3D) culture system which represents all characteristics of its origin. However, this organ-like structure requires supporting matrix to maintain its characteristics and functions. Matrigel, derived from mouse sarcoma, has often been used as the supporting m...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/8472712
更新日期:2019-06-13 00:00:00
abstract::Efficient ex vivo expansion of hematopoietic stem cells with a concomitant preservation of stemness and self-renewal potential is still an unresolved ambition. Increased numbers of methods approaching this issue using three-dimensional (3D) cultures were reported. Here, we describe a simplified 3D hanging drop model f...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/4148093
更新日期:2016-01-01 00:00:00
abstract::Designing and providing a scaffold are very important for the cells in tissue engineering. Polybutylene succinate (PBS) has high potential as a scaffold for bone regeneration due to its capacity in cell proliferation and differentiation. Also, stem cells from 3rd molar tooth germs were favoured in this study due to th...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2016/8792191
更新日期:2016-01-01 00:00:00
abstract::The calcined tooth powder (CTP), a type of allogeneic biomimetic mineralized material, has been confirmed that can promote new bone formation when obtained at high temperature. The aim of this study was to investigate effects of the conditioned medium of calcined tooth powder (CTP-CM) on the osteogenic and odontogenic...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2019/4793518
更新日期:2019-03-19 00:00:00
abstract::A mere 9 years have passed since the revolutionary report describing the derivation of induced pluripotent stem cells from human fibroblasts and the first in-patient translational use of cells obtained from these stem cells has already been achieved. From the perspectives of clinicians and researchers alike, the promi...
journal_title:Stem cells international
pub_type: 杂志文章,评审
doi:10.1155/2016/4287158
更新日期:2016-01-01 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::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-r...
journal_title:Stem cells international
pub_type: 杂志文章
doi:10.1155/2017/2857478
更新日期:2017-01-01 00:00:00