Abstract:
:Arsenic is a toxic environmental contaminant. Long-term exposure to arsenic through drinking water induces human cancers. However, it is as yet uncertain about the mechanisms of arsenic induced carcinogenesis. Although the effects of low-dose arsenicals on proliferation and cell cycle have been revealed by short time exposure, the evidences for long-term exposure were seldom reported. The detailed mechanism has been unclear and supplemented constantly. In the present study, we used normal human keratinocytes (HaCat) to study the effects of long-term, low-dose sodium arsenite (NaAsO2) exposure on cell proliferation with emphasis on the Akt regulated cell cycle signaling pathways. Treatment of NaAsO2 resulted in increased cell proliferation and promotion of cell cycle progression from G1 to S/G2M phase, both of which could be attenuated by MK2206, a highly selective inhibitor of Akt. Along with the increased expression of phospho-Akt (p-Akt, Ser 473), increased expression of p-GSK-3β (Ser 9), p-p21 (Thr 145), p-p27 (Thr 157) and total cyclin D1, and decreased expression of p-cyclin D1 (Thr 286), p21 and p27 were also found in the NaAsO2 exposed cells. Treatment of MK2206 markedly reversed the expression of all of the above proteins. Our findings indicated that the phosphorylated activation of Akt played a role in the proliferation of HaCat cells upon long-term, low-dose NaAsO2 exposure through the phosphorylative regulation of its downstream cell cycle regulating factors of GSK-3β/cyclin D1, p21 and p27, which could induce the promotion of cell cycle progression from G1 to S/G2M phase.
journal_name
Front Pharmacoljournal_title
Frontiers in pharmacologyauthors
Chen Y,Liu X,Wang H,Liu S,Hu N,Li Xdoi
10.3389/fphar.2019.01176subject
Has Abstractpub_date
2019-10-11 00:00:00pages
1176issn
1663-9812journal_volume
10pub_type
杂志文章abstract:Background:MicroRNAs are known to regulate carcinogenesis of osteosarcoma. Although, miR-16-5p is known to exert inhibitory effects on several forms of cancers, its effects on the growth and invasion of osteosarcoma have not been studied. Methods:We collected human osteosarcoma specimens and adjacent tissues to detect...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.01324
更新日期:2020-08-26 00:00:00
abstract::Phenethyl isothiocyanate is widely present in cruciferous vegetables with multiple biological effects. Here we reported the antiatherogenic effects and the underlying mechanisms of JC-5411 (Phenethyl isothiocyanate formulation) in vitro and in vivo. Luciferase reporter assay showed that JC-5411 increased the activity ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.532568
更新日期:2020-11-16 00:00:00
abstract::Mechanisms of pain resolution are largely unclear. Increasing evidence suggests that specialized pro-resolving mediators (SPMs), derived from fish oil docosahexaenoic acid (DHA), promote the resolution of acute inflammation and potently inhibit inflammatory and neuropathic pain. In this study, we examined the analgesi...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00412
更新日期:2018-05-01 00:00:00
abstract::Cardiovascular diseases (CVDs) are the major public health problem and a leading cause of morbidity and mortality on a global basis. Wenxin Keli (WXKL), a formally classical Chinese patent medicine with obvious efficacy and favorable safety, plays a great role in the management of patients with CVDs. Accumulating evid...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2018.01005
更新日期:2018-09-05 00:00:00
abstract::There is a growing interest in the pharmaceutical industry to design novel tailored drugs for RNA targeting. The vertebrate-specific RNase A superfamily is nowadays one of the best characterized family of enzymes and comprises proteins involved in host defense with specific cytotoxic and immune-modulatory properties. ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.01170
更新日期:2019-10-09 00:00:00
abstract::Icariin is a main component of the Chinese medicinal plant Epimedium brevicornu Maxim, exhibits potent activity against inflammatory diseases. Our previous data demonstrated the valid bioactivity of icariin on mitigating rodent asthma. Endoplasmic reticulum (ER) stress and nuclear factor-κB (NF-κB) pathway were involv...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.01660
更新日期:2020-01-31 00:00:00
abstract::The application of liposomes to assist drug delivery has already had a major impact on many biomedical areas. They have been shown to be beneficial for stabilizing therapeutic compounds, overcoming obstacles to cellular and tissue uptake, and improving biodistribution of compounds to target sites in vivo. This enables...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2015.00286
更新日期:2015-12-01 00:00:00
abstract::CLC-K channels belong to the CLC gene family, which comprises both Cl(-) channels and Cl(-)/H(+) antiporters. They form homodimers which additionally co-assemble with the small protein barttin. In the kidney, they are involved in NaCl reabsorption; in the inner ear they are important for endolymph production. Mutation...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2010.00130
更新日期:2010-10-25 00:00:00
abstract::l-3,4-Dihydroxyphenylalanine (l-DOPA) is the most effective therapeutic agent for Parkinson's disease (PD). l-DOPA is traditionally believed to be an inert amino acid that exerts actions and effectiveness in PD through its conversion to dopamine. In contrast to this generally accepted idea, l-DOPA is proposed to be a ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2019.01119
更新日期:2019-10-03 00:00:00
abstract::Objective: San-Cao granule (SCG), a traditional Chinese herb formula, has been used for treating autoimmune hepatitis (AIH) in our clinics for a long time. However, its active ingredients and mechanisms of action were still unknown due to its complicated chemical compositions. In the present study, the pharmacological...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00624
更新日期:2018-06-12 00:00:00
abstract::Increasing evidence has demonstrated that neuroinflammation contributes to the development of depressive-like behaviors, in both animal models and human patients; however, the brain areas and signaling pathways involved are still elusive. Recent studies have suggested novel roles of the habenula in the onset of depres...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00511
更新日期:2018-05-15 00:00:00
abstract::Cataract is the leading reason of blindness worldwide and is defined by the presence of any lens opacities or loss of transparency. The most common symptoms of cataract are impaired vision, decreased contrast sensitivity, color disturbance, and glare. Oxidative stress is among the main mechanisms involved in the devel...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2019.00466
更新日期:2019-06-13 00:00:00
abstract:PURPOSE:The importance of a framework for a systematic structured assessment of the benefits and risks has been established, but in addition, it is necessary that the benefit-risk decisions and the processes to derive those decisions are documented and communicated to various stakeholders for accountability. Hence ther...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2015.00099
更新日期:2015-06-11 00:00:00
abstract::Osteosarcoma (OS) is a malignant primary bone tumor with high metastatic rate. C-X-C motif chemokine ligand 6 (CXCL6) and its receptor C-X-C motif chemokine receptor 1/2 (CXCR1/2) have been found to participate in the process of carcinogenesis. In this study, we evaluated the role of CXCL6/CXCR1/2 axis in proliferatio...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.00307
更新日期:2019-03-28 00:00:00
abstract::Background: Comparative efficacy of different pharmacist based interventions on glycemic control of type 2 diabetes patients is unclear. This review aimed to evaluate and compare the efficacy of different pharmacist based interventions on clinical outcomes of type 2 diabetes patients. Methods: A systematic search was ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00339
更新日期:2018-04-10 00:00:00
abstract::Chinese formulas have been paid increasing attention in cancer multidisciplinary therapy due to their multi-targets and multi-substances property. Here, we aim to investigate the anti-breast cancer and chemosensitizing function of Ai Du Qing (ADQ) formula made up of Hedyotis diffusa, Curcuma zedoaria (Christm.) Rosc.,...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.01106
更新日期:2018-10-02 00:00:00
abstract::Neurodegenerative pathologies are among the most serious and socially significant problems of modern medicine, along with cardiovascular and oncological diseases. Several attempts have been made to prevent neuronal death using novel drugs targeted to the cell calcium signaling machinery, but the lack of adequate model...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00696
更新日期:2018-06-29 00:00:00
abstract:Background:The CYP2D6 gene locus has been extensively studied over decades, yet a portion of variability in CYP2D6 activity cannot be explained by known sequence variations within the gene, copy number variation, or structural rearrangements. It was proposed that rs5758550, located 116 kb downstream of the CYP2D6 gene ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.00486
更新日期:2020-05-08 00:00:00
abstract::Neonatal epileptic encephalopathy (NEE), as a result of pyridoxine 5'-phosphate oxidase (PNPO) deficiency, is a rare neural disorder characterized by intractable seizures and usually leads to early infant death. The clinical phenotypes do not respond to antiepileptic drugs but are alleviated in most cases by giving la...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.01086
更新日期:2019-09-20 00:00:00
abstract::Myocardial ischemia-reperfusion (I/R) injury remains the leading risk factor of disability and mortality worldwide. In this study, the myocardial protective effect of eriodictyol (EDT) and the underlying mechanism in an ex vivo model of global myocardial I/R was investigated. After treatment with different concentrati...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00033
更新日期:2018-01-30 00:00:00
abstract::Salvia miltiorrhiza Bunge, a member of the Lamiaceae family, is valued in traditional Chinese Medicine. Its dried root (named Danshen) has been used for hundreds of years, primarily for the treatment of cardiovascular and cerebrovascular diseases. Tanshinones are the main active ingredients in S. miltiorrhiza and exhi...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2019.00202
更新日期:2019-03-14 00:00:00
abstract::Background: In recent decades, research on drug therapy for ventilator-associated pneumonia (VAP) remains one of the major hot-spots in the field of critical care medicine, but relevant data are not satisfactory. Our aim was to assess the status and trends of the most cited articles on drug therapy for VAP through bib...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.00108
更新日期:2019-02-12 00:00:00
abstract::Panax ginseng has been used as an herbal medicine for thousands of years. Most of its pharmacological effects are attributed to its constituent ginsenosides, including 20(S)-25-methoxyl-dammarane-3β, 12β, 20-triol (20(S)-25-OCH3-PPD), which is one of the protopanaxadiol type ginsenosides. It has been found to exhibit ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2020.00521
更新日期:2020-04-22 00:00:00
abstract::The pathological superoxidative condition that retinal pigment epithelium (RPE) cells experience contributed to the advancement of age-related macular degeneration (AMD), which was accompanied by significant neovascularization. Therefore, the discovery of novel pharmacological candidates to ameliorate oxidative damage...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00240
更新日期:2018-03-20 00:00:00
abstract::Previous data showed that neuropathic pain induced by mechanical lesion of peripheral nerves has specific characteristics and responds differently to alleviating drugs at cephalic versus extracephalic level. This is especially true for tricyclic antidepressants currently used for alleviating neuropathic pain in humans...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00587
更新日期:2018-06-07 00:00:00
abstract::In-depth research on processing can promote the globalization of processed herbs. The purpose of this study is to propose an improved strategy for processing effect investigation. Frankincense and processed frankincense were used as research subjects. First, high-speed countercurrent chromatography (HSCCC) and prepara...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.01482
更新日期:2018-12-18 00:00:00
abstract::Ginsenoside is a major active component of ginseng, which exhibits various pharmacological properties such as hepatoprotection, tumor suppression and diabetes resistance. In this study, the anti-diabetic effects of protopanaxadiol (PPD) and protopanaxatriol (PPT)-type saponins were explored and compared in high-fat di...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2017.00506
更新日期:2017-08-02 00:00:00
abstract::Emerging evidence has demonstrated that epigenetic regulation plays a vital role in gene expression under normal and pathological conditions. Alterations in the expression and activation of histone methyltransferases (HMTs) have been reported in preclinical models of multiple kidney diseases, including acute kidney in...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2019.01393
更新日期:2019-12-06 00:00:00
abstract::Chemotherapy is a leading intervention against cancer. Albeit highly effective, chemotherapy has a multitude of deleterious side-effects including skeletal muscle wasting and fatigue, which considerably reduces patient quality of life and survivability. As such, a defense against chemotherapy-induced skeletal muscle d...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2017.00137
更新日期:2017-04-10 00:00:00
abstract::Coronavirus disease 2019 (COVID-19), an acute onset pneumonia caused by a novel Betacoronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), emerged in the Wuhan City of China in December 2019 and evolved into a global pandemic. To date, there are no proven drugs or vaccines against this virus. Hence...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2020.585888
更新日期:2020-09-17 00:00:00