Abstract:
OBJECTIVES:The transfer of melanosomes from melanocytes to neighbouring keratinocytes is critical to protect the skin from the deleterious effects of ultraviolet A (UVA) and ultraviolet B (UVB) irradiation; however, the initial factor(s) that stimulates melanosome transfer remains unclear. In this study, we investigated the induction of retinal-dependent calcium (Ca2+ ) influx in melanocytes (MCs) by UVA or UVB irradiation and the effect of transient receptor potential cation channel subfamily M member 1 (TRPM1) (melastatin1)-related Ca2+ influx on melanosome transfer. MATERIALS AND METHODS:Primary human epidermal MCs were exposed to physiological doses of UVB or UVA light and loaded with a calcium indicator Fluo-4 dye. The change of intracellular calcium of MCs was monitored using a two-photon confocal fluorescence microscopy. MCs were co-cultured with human epidermal keratinocytes (KCs) in the absence or presence of voriconazole (a TRPM1 blocker) or calcium chelators. MCs were also transfected with TRPM1 siRNA for silencing the expression of TRPM1 gene. The melanosome transfer in the co-cultured cells was quantitatively analysed using flow cytometry and was further confirmed by immunofluorescent double-staining. The protein levels and distributions of TRPM1, OPN3 and OPN5 in MCs were measured by Western blotting or immunofluorescent staining. RESULTS:The retinal-dependent Ca2+ influx of UVA-exposed melanocytes differed greatly from that of UVB-exposed melanocytes in the timing-phase. The protein expression of TRPM1 in mono- and co-cultured MCs was dose-dependently up-regulated by UVA and UVB. TRPM1 siRNA-mediated knockdown and the blockage of TRPM1 channel using a putative antagonist (voriconazole) significantly inhibited melanosome transfer in co-cultures following UVA or UVB exposure. CONCLUSIONS:The distinct time-phases of Ca2+ influx in MCs induced by UVA or UVB contribute to the consecutive stimulation of melanosome transfer, thereby providing a potent photoprotection against harmful UV radiation.
journal_name
Cell Prolifjournal_title
Cell proliferationauthors
Hu QM,Yi WJ,Su MY,Jiang S,Xu SZ,Lei TCdoi
10.1111/cpr.12372subject
Has Abstractpub_date
2017-12-01 00:00:00issue
6eissn
0960-7722issn
1365-2184journal_volume
50pub_type
杂志文章abstract:OBJECTIVES:To investigate the role of hierarchical micro/nanoscale topography of direct metal laser sintering (DMLS) titanium surfaces in osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs), as well as the possible underlying epigenetic mechanism. MATERIALS AND METHODS:Three groups of titanium spe...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12460
更新日期:2018-08-01 00:00:00
abstract::An ELISA was developed and optimized to measure cell proliferation using a monoclonal antibody to bromodeoxyuridine (BrdUrd). Incorporation of BrdUrd into myoblast monolayers, measured as the optical density at 492 nm, increased in response to fetal calf serum, IGF-I and EGF, the ELISA data correlated closely with dat...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.1991.tb01179.x
更新日期:1991-09-01 00:00:00
abstract:OBJECTIVES:Based on in vivo studies, low-intensity pulsed ultrasound (LIPUS) stimulation has been widely used in the clinic for advancing bone growth during healing of non-union alignment, fractures and other osseous defects. In this study, we have investigated osteogenic differentiation of adipose stem cells (ASCs) re...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12035
更新日期:2013-06-01 00:00:00
abstract:OBJECTIVES:The present study aimed to investigate overall effect of quercetin on proliferation and osteogenic differentiation of mouse adipose stem cells (mASCs) in vitro. MATERIALS AND METHODS:Mouse adipose stem cells were isolated from subcutaneous fat pads and induced into the osteogenic lineage. Effects of quercet...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12097
更新日期:2014-04-01 00:00:00
abstract:OBJECTIVES:This study is to explore the role of Notch signalling during the regeneration of rat tracheal epithelium after injury induced by 5-fluorouracil (5-FU). MATERIALS AND METHODS:We developed an ex vivo model of rat tracheal epithelial regeneration using 5-FU to induce injury. Expression levels of members of the...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2008.00569.x
更新日期:2009-02-01 00:00:00
abstract:OBJECTIVES:BCL2 family proteins have been widely studied over the past decade due to their essential roles in apoptosis, oncogenesis and anti-cancer therapy. However, the similarities and differences in the spatial pattern of the BCL2 gene family within the context of chromatin have not been well characterized. We soug...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12826
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVES:Enterochromaffin (EC) cells have been associated with functional gastrointestinal disorders such as IBS. Recently, we found that glial cell-derived neurotrophic factor (GDNF)-rearranged during transfection (RET) localized in EC cells in human colonic epithelia. Here, we examine the role of GDNF-RET in the pa...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12889
更新日期:2020-10-01 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:Liver regeneration is attenuated in old age and is substantially slower after 90% than after 70% partial hepatectomy (PH). We have previously demonstrated that the proliferative response to a primary mitogen is intact in aged mice, indicating that impaired liver regeneration is not due to loss of proliferati...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2008.00532.x
更新日期:2008-06-01 00:00:00
abstract:OBJECTIVES:Vascular disorders are associated with phenotypical switching of vascular smooth muscle cells (VSMCs). We investigated the effect of bone morphogenetic protein (BMP)-2 in controlling VSMC phenotype and vascular disorder progression. Lysine (K)-specific demethylase 1A (KDM1A) has been identified to target BMP...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12711
更新日期:2020-01-01 00:00:00
abstract:INTRODUCTION/OBJECTIVES:The serine/threonine kinase homeodomain-interacting protein kinase 2 (HIPK2) is a co-regulator of an increasing number of transcription factors and cofactors involved in DNA damage response and development. We and others have cloned HIPK2 as an interactor of the p53 oncosuppressor, and have stud...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2009.00601.x
更新日期:2009-06-01 00:00:00
abstract:OBJECTIVES:Secondary bacterial pneumonia is common following influenza infection. However, it remains unclear about the underlying molecular mechanisms. MATERIALS AND METHODS:We established a mouse model of post-influenza S aureus pneumonia using conditional Shp2 knockout mice (LysMCre/+ :Shp2flox/flox ). The survival...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12721
更新日期:2020-01-01 00:00:00
abstract::This study examines epithelial cell streaming and turnover in normal rat bulbar conjunctiva. Twenty seven male adult random-bred Hebrew rats weighing between 250-300 g, were injected i.p. with [3H]-thymidine. Three rats were killed at various times, thereafter from 1 h to 28 days. The enucleated eyes were fixed in for...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.1995.tb00066.x
更新日期:1995-04-01 00:00:00
abstract:OBJECTIVES:It has been widely reported that maternal diabetes impairs oocyte quality. However, the responsible mechanisms remain to be explored. In the present study, we focused on whether SIRT3-GSK3β pathway mediates the meiotic defects in oocytes from diabetic mice. MATERIALS AND METHODS:GSK3β functions in mouse ooc...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12940
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVES:Restoring a functional beta-cell mass is a fundamental goal in treating diabetes. A complex signalling pathway network coordinates the regulation of beta-cell proliferation, although a role for ERK5 in this network has not been reported. This question was addressed in this study. MATERIALS AND METHODS:We st...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12410
更新日期:2018-06-01 00:00:00
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 t...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12789
更新日期:2020-04-01 00:00:00
abstract:OBJECTIVE:To determine the inhibitory effect and mechanism of Notch signalling on adipogenesis of mouse adipose-derived stem cells (mASCs). MATERIALS AND METHODS:Varied concentrations of N-[N-(3,5-difluorophenacetyl)-l-alanyl]-S-phenylglycine t-butylester (DAPT) were added to mASCs 3 days before adipogenic induction w...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.2009.00661.x
更新日期:2010-04-01 00:00:00
abstract:OBJECTIVES:Generally, the secretory forms of FGF are known to regulate cell proliferation, differentiation and morphogenesis by binding to the extracellular domain of cell surface receptors. Intracellular FGFs (FGF11-14) are expressed principally in the nervous system. FGF13 is a microtubule-stabilizing protein that re...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12200
更新日期:2015-10-01 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::Rabbit embryo-fetal fluid (EFF) contains regulatory factors of cell proliferation which increase the duration of the cell cycle, induce a quiescent status in some cells and lead up to cell death in others. The objective of this study was to demonstrate which of the two processes, namely necrosis or apoptosis, was resp...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.1993.tb00013.x
更新日期:1993-03-01 00:00:00
abstract:OBJECTIVES:This study investigated effects of reduced serum condition and vascular endothelial growth factor (VEGF) on angiogenic potential of adipose stromal cells (ASCs) in vitro. MATERIALS AND METHODS:Adipose stromal cells were cultured in three different types of medium: (i) F12/DMEM (FD) supplemented with 10% FBS...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12029
更新日期:2013-06-01 00:00:00
abstract::Spontaneously proliferating human leucocytes have been characterized and enumerated using multiparameter flow cytometry. The frequency of spontaneously proliferating cells amongst human peripheral blood mononuclear cells, was determined on the basis of BrdUrd incorporation and total DNA content in samples of cells inc...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/j.1365-2184.1993.tb00327.x
更新日期:1993-07-01 00:00:00
abstract::Triple-negative breast cancer (TNBC) is one of the most aggressive subtypes of breast cancer with negativity for oestrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor (HER2). Non-coding RNAs (ncRNAs) make up most of the transcriptome and are widely present in eukaryotic cells. ...
journal_title:Cell proliferation
pub_type: 杂志文章,评审
doi:10.1111/cpr.12801
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to obtain antitumour molecules targeting to activate PKM2 through adequate computational methods combined with biological activity experiments. METHODS:The structure-based virtual screening was utilized to screen effective activator targeting PKM2 from ZINC database. Molecular dyna...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12509
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVES:Mouse embryonic stem cell (mESC) culture contains various heterogeneous populations, which serve as excellent models to study gene regulation in early embryo development. The heterogeneity is typically defined by transcriptional activities, for example, the expression of Nanog or Rex1 mRNA. Our objectives we...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12914
更新日期:2020-11-01 00:00:00
abstract::The effect of various GnRH analogues, and their conjugates on proliferation, clonogenicity and cell cycle phase distribution of MCF-7 and Ishikawa human cancer cell lines was studied. GnRH-III, a sea lamprey GnRH analogue reduced cell proliferation by 35% and clonogenicity by 55%. Structural modifications either decre...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1046/j.1365-2184.2000.00180.x
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVES:Bone marrow edema is a universal manifestation of rheumatoid arthritis (RA), and its pathological essence is a bone marrow lesion (BML) formed by various bone marrow (BM) immune cells. Neutrophils play an important role in inflammatory arthritis, but the role and mechanism of neutrophils in BML are not clear...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12824
更新日期:2020-07-01 00:00:00
abstract:OBJECTIVES:Long non-coding RNAs have identified to involve into the tumour cell proliferation, apoptosis and metastasis. We previously found that up-regulated LncRNA-SNHG7 (SNHG7) positively correlated to the Fas apoptosis inhibitory molecule 2 (FAIM2) in lung cancer cells with unclear mechanism. METHODS:Non-small cel...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12406
更新日期:2018-02-01 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:OBJECTIVE:Accumulating data show that dysregulation of long noncoding RNAs (lncRNAs) acts a critical role in a variety of malignancies. Among these lncRNAs, small nucleolar RNA host genes (SNHGs) are associated with tumour growth and progression. But, the molecular mechanisms by which SNHG4 contributes to osteosarcoma ...
journal_title:Cell proliferation
pub_type: 杂志文章
doi:10.1111/cpr.12515
更新日期:2018-12-01 00:00:00