Abstract:
OBJECTIVES:Oestrogen is known to inhibit osteoclastogenesis, and numerous studies have identified it as an autophagic activator. To date, the role of oestrogen in the autophagy of osteoclast precursors (OCPs) during osteoclastogenesis remains unclear. This study aimed to determine the effect of autophagy regulated by the biologically active form of oestrogen (17β-estradiol) on osteoclastogenesis. MATERIALS AND METHODS:After treatment with 17β-estradiol in OCPs (from bone marrow-derived macrophages, BMMs) and ovariectomy (OVX) mice, we measured the effect of 17β-estradiol on the autophagy of OCPs in vitro and in vivo. In addition, we studied the role of autophagy in the OCP proliferation, osteoclast differentiation and bone loss regulated by 17β-estradiol using autophagic inhibitor or knock-down of autophagic genes. RESULTS:The results showed that direct administration of 17β-estradiol enhanced the autophagic response of OCPs. Interestingly, 17β-estradiol inhibited the stimulatory effect of receptor activator of nuclear factor-κB ligand (RANKL) on the autophagy and osteoclastogenesis of OCPs. Moreover, 17β-estradiol inhibited the downstream signalling of RANKL. Autophagic suppression by pharmacological inhibitors or gene silencing enhanced the inhibitory effect of 17β-estradiol on osteoclastogenesis. In vivo assays showed that the autophagic inhibitor 3-MA not only inhibited the autophagic activity of the OCPs in the trabecular bone of OVX mice but also enhanced the ability of 17β-estradiol to ameliorate bone loss. CONCLUSIONS:In conclusion, our study showed that oestrogen directly enhanced the autophagy of OCPs, which inhibited its anti-osteoclastogenic effect. Drugs based on autophagic inhibition may enhance the efficacy of oestrogen on osteoporosis.
journal_name
Cell Prolifjournal_title
Cell proliferationauthors
Cheng L,Zhu Y,Ke D,Xie Ddoi
10.1111/cpr.12789subject
Has Abstractpub_date
2020-04-01 00:00:00pages
e12789issue
4eissn
0960-7722issn
1365-2184journal_volume
53pub_type
杂志文章abstract::Breast cancer has seriously been threatening physical and mental health of women in the world, and its morbidity and mortality also show clearly upward trend in China over time. Through inquiry, we find that survival rate of patients with early-stage breast cancer is significantly higher than those with middle- and la...
journal_title:Cell proliferation
pub_type: 杂志文章,评审
doi:10.1111/cpr.12822
更新日期:2020-07-01 00:00:00
abstract:OBJECTIVES:Oestrogen receptor (ER) is a common nucleus receptor that is essential for the regulation of cell growth, proliferation and differentiation. This study was to examine whether ERα can affect the proliferation and odonto/osteogenic differentiation of stem cells from apical papilla (SCAPs). MATERIALS AND METHO...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12485
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVES:To evaluate the effects of rRNA synthesis inhibition on cell cycle progression and cell population growth according to the RB and p53 status. MATERIAL AND METHODS:RB- and p53-proficient U2OS cells and the RB- and p53-deficient SAOS-2 cells were used, rRNA transcription hindered by actinomycin D, and cell cy...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2007.00448.x
更新日期:2007-08-01 00:00:00
abstract:OBJECTIVES:Limbal stem cells (LSC) are self-renewing, highly proliferative cells in vitro, which express a set of specific markers and in vivo have the capacity to reconstruct the entire corneal epithelium in cases of ocular surface injury. Currently, LSC transplantation is a commonly used procedure in patients with ei...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2009.00623.x
更新日期:2009-10-01 00:00:00
abstract:OBJECTIVE:Embryo implantation needs a reciprocal interaction between competent embryo and receptive endometrium. Adenosine triphosphate (ATP) produced by stressed or injured cells acts as an important signalling molecule. This study aims to investigate whether adenosine triphosphate (ATP) plays an important role in the...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12737
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVES:Skin-derived precursors are recognized to be a potentially autologous and accessible source of neural precursor cells for drug screening or cell-based treatments, in many neurological disorders. Thus, it is necessary to investigate appropriate methods for cryopreservation of such human skin-derived precursor...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2011.00803.x
更新日期:2012-04-01 00:00:00
abstract:OBJECTIVES:Osteosarcoma is the most commonly diagnosed primary malignancy of bone and its overall survival rate is still very low. The molecular mechanisms underlying the progression of osteosarcoma have not been clearly illuminated. Heat shock transcription factor 1 (HSF1) is a key regulator of the heat shock response...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12346
更新日期:2017-08-01 00:00:00
abstract::In situ presence of numerous DNA strand breaks is a typical feature of apoptotic cells. Selective DNA strand break induction by photolysis (SBIP) at sites that contain incorporated halogenated DNA precursors has recently been proposed as a method of analysing DNA replication. Detection of DNA strand breaks, thus, enab...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.1995.tb00045.x
更新日期:1995-11-01 00:00:00
abstract:OBJECTIVES:Intracellular reactive oxygen species (ROS) induced by receptor activator of NF-kB ligand (RANKL) has been proven to be a critical factor in the development of osteoclasts. This study aimed to prove that schisandrin A (Sch), a novel anti-oxidant compound, is able to suppress osteoclastogenesis and prevent bo...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12882
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVES:Silicate bioactive glass (BG) has been widely demonstrated to stimulate both of the hard and soft tissue regeneration, in which ion products released from BG play important roles. However, the mechanism by which ion products act on cells on cells is unclear. MATERIALS AND METHODS:Human umbilical vein endoth...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12906
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVES:The aim of the current study was to investigate whether nicotine treatment would induce the proliferation of isolated rat primary pancreatic acinar cells in culture by activating mitogen-activated protein kinase (MAPK) signalling and exocrine secretion. MATERIALS AND METHODS:A nicotine dose- and time-respon...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2007.00418.x
更新日期:2007-02-01 00:00:00
abstract::Differential display polymerase chain reaction (DD-PCR) is a powerful technique for comparing gene expression between cell types, or between stages of development or differentiation. Differentially expressed genes may be cloned and analysed further. Here we extend the use of DD-PCR to analyse differences in gene expre...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:
更新日期:1997-10-01 00:00:00
abstract:OBJECTIVES:Exposure to microgravity induces many adaptive and pathological changes in human bone marrow mesenchymal stem cells (hBMSCs). However, the underlying mechanisms of these changes are poorly understood. We revealed the gene expression patterns of hBMSCs under normal ground (NG) and simulated microgravity (SMG)...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12539
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVES:MicroRNAs (miRNAs) as small non-coding RNA molecules act by negatively regulating their target genes. Recent studies have shown that protein phosphatase Mg2+/Mn2+-dependent 1F (PPM1F) plays a critical role in cancer metastasis. But, the regulation mechanisms of PPM1F by miRNAs in gastric cancer (GC) remain u...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12444
更新日期:2018-08-01 00:00:00
abstract::RAIDD (RIP-associated ICH-1 homologous protein with a death domain) is an adaptor molecule that mediates the action of cysteine proteases involved in apoptosis. To study the possibility of a novel system of cell ablation mediated by RAIDD, a preadipocyte cell line (3T3L1) was stably transfected with a plasmid containi...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1046/j.1365-2184.2003.00253.x
更新日期:2003-02-01 00:00:00
abstract:OBJECTIVES:We have evaluated the physiological roles of transforming growth factor-beta1 (TGF-beta1) on differentiation, migration, proliferation and anti-apoptosis characteristics of cultured spinal cord-derived neural progenitor cells. METHODS:We have used neural progenitor cells that had been isolated and cultured ...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2008.00514.x
更新日期:2008-04-01 00:00:00
abstract:OBJECTIVE:It is not known whether or not epithelial progenitors of the pyloric antrum are involved in gastric carcinogenesis. Normally, these progenitors give rise to two main cell lineages: pit and gland mucous cells. This study was designed to examine the changes that occur in pyloric antral mucous cell lineages and ...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2008.00562.x
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVES:Fibrotic cataract, including posterior capsule opacification (PCO) and anterior subcapsular cataract (ASC), renders millions of people visually impaired worldwide. However, the underlying mechanism remains poorly understood. Here, we report a miRNA-based regulatory pathway that controls pathological fibrosis...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12911
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVES: The focus of this study was to determine the dedicator of cytokinesis 2 (DOCK2), extracellular signal-regulated kinase 1/2 (ERK1/2), c-Jun N-terminal kinase-1 (JNK) and Akt signals involved in CXCL13-mediated prostate cancer (PCa) cell invasion and proliferation. MATERIALS AND METHODS: Androgen-sensitive...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2011.00757.x
更新日期:2011-08-01 00:00:00
abstract::Epstein-Barr virus (EBV) infection in vitro causes transformation of B cells and generates B lymphoblastoid cell lines (LCLs). These LCLs have been widely used for the diagnostic of several genetic metabolic disorders. However, up to now, efficiency of LCL generation has been based on misleading subjective analysis. I...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2006.00363.x
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVES:Pre-eclampsia is a leading cause of morbidity and mortality during pregnancy. Although the two forms of this disorder, early- (EOPE) and late-onset of pre-eclampsia (LOPE) are different, the underlying pathology remains elusive. We aim to unravel the difference and to identify novel biomarkers for EOPE and L...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12968
更新日期:2020-12-17 00:00:00
abstract:OBJECTIVES:Cardiac atrial appendage stem cells (CASCs) have recently emerged as an attractive candidate for cardiac regeneration after myocardial infarction. As with other cardiac stem cells, CASCs have to be expanded ex vivo to obtain clinically relevant cell numbers. However, foetal calf serum (FCS), which is routine...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12166
更新日期:2015-04-01 00:00:00
abstract::This study focuses on analysis of in vitro cultures of chondrocytes from ovine articular cartilage. Isolated cells were seeded in Petri dishes, then expanded to confluence and phenotypically characterized by flow cytometry. The sigmoidal temporal profile of total counts was obtained by classic haemocytometry and corre...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2010.00676.x
更新日期:2010-06-01 00:00:00
abstract:OBJECTIVES:miR-21 can promote osteoblast differentiation of periodontal ligament stem cells. However, the effect of miR-21 on bone remodelling in the midpalatal suture is unclear. This study aimed to elucidate the effects of miR-21 on the midpalatal suture bone remodelling by expanding the palatal sutures. MATERIALS A...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12697
更新日期:2020-01-01 00:00:00
abstract::Several methods to synchronize cultured cells in the cell cycle are based on temporary inhibition of DNA replication. Previously it has been reported that cells synchronized this way exhibited significant growth imbalance and unscheduled expression of cyclins A and B1. We have now observed that HL-60 cells exposed to ...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2006.00380.x
更新日期:2006-06-01 00:00:00
abstract:OBJECTIVES:To investigate behaviour and osteogenic cytokine expression of RAW264.7 macrophages grown on TiO2 nanotube layers. MATERIALS AND METHODS:The murine macrophage cell line RAW 264.7 was cultured on TiO2 nanotubes of varying diameter; macrophage morphology was examined using scanning electron microscopy. Cell a...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12072
更新日期:2013-12-01 00:00:00
abstract:OBJECTIVES:Postflight orthostatic intolerance has been regarded as a major adverse effect after microgravity exposure, in which cerebrovascular adaptation plays a critical role. Our previous finding suggested that dedifferentiation of vascular smooth muscle cells (VSMCs) might be one of the key contributors to cerebrov...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12774
更新日期:2020-03-01 00:00:00
abstract:OBJECTIVES:Increasing evidences suggest that inducing mesenchymal stem cells to differentiate into osteoblasts has been as an especially important component in the prevention and therapy for degenerative bone disease. Here, we identify a novel lncRNA, linc02349, which increases significantly during osteogenic different...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12814
更新日期:2020-05-01 00:00:00
abstract::We have developed a mathematical model based on proliferation and infiltration of neoplastic cells that allows predictions to be made concerning the life expectancies following various extents of surgical resection of gliomas of all grades of malignancy. The key model parameters are the growth rate and the diffusion r...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.1996.tb01580.x
更新日期:1996-06-01 00:00:00
abstract::Electromagnetic ultra-wideband pulses (UWB) or nanopulses, are generated by a wide range of electronic devices used in communications and radar technology. However, the specific effects of nanopulse exposure on cell growth and function have not been extensively investigated. Here, studies have been conducted to determ...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2005.00340.x
更新日期:2005-06-01 00:00:00