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https://www.readbyqxmd.com/read/29224019/the-mir-495-annexin-a3-p53-axis-inhibits-the-invasion-and-emt-of-colorectal-cancer-cells
#1
Zhigang Bai, Jin Wang, Tingting Wang, Yuan Li, Xiaomu Zhao, Guocong Wu, Yingchi Yang, Wei Deng, Zhongtao Zhang
BACKGROUND/AIMS: More and more reports have shown that the dysregulation of miRNAs can contribute to the progression and metastasis of human cancers. Many studies have shown that the down-regulation of the miR-495 level occurs in a variety of cancers, including colorectal cancer (CRC). However, the precise molecular mechanisms of miR-495 in CRC have not been well clarified. In the current study, we investigated the biological functions and molecular mechanisms of miR-495 in CRC cell lines...
December 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29224018/sulforaphane-treatment-of-stress-urinary-incontinence-via-the-nrf2-are-pathway-in-a-rat-model
#2
Xiang Wan, Chong Liu, Yan-Bo Chen, Meng Gu, Zhi-Kang Cai, Qi Chen, Zhong Wang
BACKGROUND/AIMS: To explore the effect of sulforaphane (SFN) treatment in rats through the induction of Stress Urinary Incontinence (SUI) via the Nrf2-ARE pathway. METHODS: A total of 18 female rats (Sprague-Dawley) were assigned to three groups: a control group, an SUI group, and an SUI+SFN group (six rats per group). Rats in the treatment groups were induced via postpartum vaginal balloon dilation and bilateral ovariectomy. Rats in the SUI+SFN group were treated via intraperitoneal injection once per day for a total of one month...
December 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29224010/microrna-195-suppresses-the-progression-of-pancreatic-cancer-by-targeting-dclk1
#3
Bin Zhou, Chuandong Sun, Xiao Hu, Hanxiang Zhan, Hao Zou, Yujie Feng, Fabo Qiu, Shun Zhang, Liqun Wu, Bingyuan Zhang
BACKGROUND/AIMS: Doublecortin-like kinase 1 (DCLK1) is emerging as a tumor-specific stem cell marker in pancreatic cancer (PC). MicroRNA-195 (miR-195) plays an important role in many types of tumors. However, the roles of DCLK1 in cancer and miRNAs that directly regulate DCLK1 have not been elucidated. The goal of this study is to assess the effects of miR-195 on inhibiting DCLK1 and to clarify the regulating mechanism of miR-195-DCLK1 in PC cells. METHODS: The expression of DCLK1 protein and miR-195 in PC tissues and adjacent healthy pancreatic tissues was detected by Western blot and quantitative reverse transcription polymerase chain reaction (qRT-PCR), respectively and the correlation between overall survival of PC patients and expression of DCLK1 was measured by Kaplan-Meier analysis...
December 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29224009/itraq-based-proteomics-analysis-of-acute-lung-injury-induced-by-oleic-acid-in-mice
#4
Xiaotao Xu, Qingwei Zhu, Rong Zhang, Yan Wang, Fangfang Niu, Wenying Wang, Dawei Sun, Aizhong Wang
BACKGROUND/AIMS: This study was conducted to investigate the relationship between differentially expressed proteins (DEPs) and the pathogenesis of oleic acid (OA)-induced acute lung injury (ALI) in mice. METHODS: Eight-week-old male C57BL/6 mice were injected with OA through the tail vein and sacrificed 6 hours after OA administration to identify protein expression levels in lung tissue using isobaric tags for relative and absolute quantification (iTRAQ) technology...
December 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29224003/human-leukocyte-antigen-g-inhibits-the-anti-tumor-effect-of-natural-killer-cells-via-immunoglobulin-like-transcript-2-in-gastric-cancer
#5
Rui Wan, Zi-Wei Wang, Hui Li, Xu-Dong Peng, Guang-Yi Liu, Jun-Ming Ou, An-Qi Cheng
BACKGROUND/AIMS: Human leukocyte antigen-G (HLA-G) plays an important role in inhibiting natural killer (NK) cell function and promoting immune escape. However, the specific mechanism of HLA-G on NK in gastric cancer (GC) remains not well understood. This study investigated the expression of HLA-G in GC and the role of HLA-G-effected NK cells in GC progression. METHODS: HLA-G expression in GC tissues obtained from 49 patients with GC was analyzed by immunohistochemistry and western blot...
December 7, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29224002/the-protective-effects-of-%C3%AE-opioid-receptor-stimulation-in-hypoxic-pulmonary-hypertension-involve-inhibition-of-autophagy-through-the-ampk-mtor-pathway
#6
Yaguang Zhou, Yuanbo Wang, Xu Wang, Xin Tian, Shumiao Zhang, Fan Yang, Haitao Guo, Rong Fan, Na Feng, Min Jia, Xiaoming Gu, Yuemin Wang, Juan Li, Jianming Pei
BACKGROUND/AIMS: In a previous study, we showed that κ-opioid receptor stimulation with the selective agonist U50,488H ameliorated hypoxic pulmonary hypertension (HPH). However, the roles that pulmonary arterial smooth muscle cell (PASMC) proliferation, apoptosis, and autophagy play in κ-opioid receptor-mediated protection against HPH are still unknown. The goal of the present study was to investigate the role of autophagy in U50,488H-induced HPH protection and the underlying mechanisms...
December 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29223809/cadmium-induces-bnip3-dependent-autophagy-in-chicken-spleen-by-modulating-mir-33-ampk-axis
#7
Menghao Chen, Xiaojing Li, Ruifeng Fan, Jie Yang, Xi Jin, Sattar Hamid, Shiwen Xu
Cadmium (Cd), a widespread environmental pollutant, has toxic effects on organs including spleen. However, the underlying mechanisms of Cd induced spleen toxicity and the roles of micro-RNA (miRNA) in this process remain poorly understood. To investigate this, cadmium chloride (CdCl2, 10 mg/kg) was administered in the diet of chickens for 90 days. Electron microscopy, qPCR and Western blot were performed. Results showed that Cd exposure suppressed miR-33-5q which increased the levels of AMPK. Subsequently, significant decrease in AKT/mTOR signaling and HSP70 were observed...
December 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/29223640/dentin-sialophosphoprotein-expression-in-enamel-is-regulated-by-copine-7-a-preameloblast-derived-factor
#8
Su-Jin Park, Hye-Kyung Lee, You-Mi Seo, Chul Son, Hyun Sook Bae, Joo-Cheol Park
OBJECTIVE: Dentin sialophosphoprotein (Dspp) is expressed in odontoblasts and transiently expressed in early ameloblasts. However, the origin of Dspp in ameloblasts remains unclear. Our previous studies demonstrated that copine-7 (CPNE7), a molecule that is secreted by the dental epithelium, is expressed in early ameloblasts and is then translocated to differentiating odontoblasts; its expression levels correlate with odontoblast differentiation under the control of Dspp expression. The objective of this study is to figure out the relationship between CPNE7 and Dspp during amelogenesis...
December 6, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29223591/mild-hypothermia-protects-hippocampal-neurons-from-oxygen-glucose-deprivation-injury-through-inhibiting-caspase-3-activation
#9
Tianen Zhou, Hui Lin, Longyuan Jiang, Tao Yu, Chaotao Zeng, Juanhua Liu, Zhengfei Yang
Mild hypothermia (MH) is thought to be one of the most effective therapeutic methods to treat hypoxic-ischemic encephalopathy (HIE) after cardiac arrest (CA). However, its precise mechanisms remain unclear. In this research, hippocampal neurons were cultured and treated with mild hypothermia and Ac-DEVD-CHO after oxygen-glucose deprivation (OGD). The activity of caspase-3 was detected, in order to find the precise concentration of Ac-DEVD-CHO with the same protective role in OGD injury as MH treatment. Western blot and immunofluorescence staining were conducted to analyze the effects of MH and Ac-DEVD-CHO on the expressions of caspase-3, caspase-8, and PARP...
December 6, 2017: Cryobiology
https://www.readbyqxmd.com/read/29223588/-9-o-%C3%AE-l-rhamnopyranosyl-lyoniresinol-from-lespedeza-cuneata-suppresses-ovarian-cancer-cell-proliferation-through-induction-of-apoptosis
#10
Jiwon Baek, Dahae Lee, Tae Kyoung Lee, Ji Hoon Song, Ju Sung Lee, Seong Lee, Sang-Woo Yoo, Ki Sung Kang, Eunjung Moon, Sanghyun Lee, Ki Hyun Kim
Lespedeza cuneata (Dum. Cours.) G. Don. (Fabaceae), known as Chinese bushclover or sericea lespedeza, has been used in traditional medicine to treat diabetes, hematuria, and insomnia, and it has been reported that bioactive compounds from L. cuneata possess various pharmacological properties. However, there has been no study to determine the active compounds from L. cuneata with potential activity against ovarian cancer. This study aimed to isolate cytotoxic compounds from L. cuneata and identify the molecular mechanisms underlying the apoptosis pathway in ovarian cancer cells...
November 28, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29223569/isolated-mangiferin-and-naringenin-exert-antidiabetic-effect-via-ppar%C3%AE-glut4-dual-agonistic-action-with-strong-metabolic-regulation
#11
Ashok K Singh, Vinit Raj, Amit K Keshari, Amit Rai, Pranesh Kumar, Atul Rawat, Biswanath Maity, Dinesh Kumar, Anand Prakash, Arnab De, Amalesh Samanta, Bolay Bhattacharya, Sudipta Saha
In this study, we isolated two compounds from the leaves of Salacia oblonga (SA1, mangiferin and SA2, naringenin), and their structures were confirmed by infrared spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and mass spectrometry. SA1 and SA2 were orally administered to streptozotocin-induced diabetic rats at 50 and 100 mg/kg daily for 15 days. Blood glucose level, serum lipid profile, oxidative stress parameters, histopathology, docking, molecular parameters, and NMR-based metabolic perturbation studies were performed to investigate the pharmacological activities of SA1 and SA2...
December 6, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29223555/emerging-roles-of-circular-rna-hsa_circ_0000064-in-the-proliferation-and-metastasis-of-lung-cancer
#12
Yan-Hong Luo, Xiang-Zhi Zhu, Ke-Wei Huang, Qian Zhang, Yan-Xin Fan, Peng-Wei Yan, Jing Wen
Circular RNAs (circRNAs), a novel class of widespread and diverse endogenous RNAs, can regulate gene expression in mammals. CircRNAs have recently been identified as microRNA sponges and involved in the development of some human diseases. However, the role of circRNAs in the process of tumorigenesis and development of lung cancer remains vague. The purpose of this study is to investigate the role of circRNAs in the lung cancer. In this study, we chose hsa_circ_0000064 as a targeted circRNA to investigate its clinical significances in lung cancer patients...
December 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29223540/protective-effect-of-coptisine-free-base-on-indomethacin-induced-gastric-ulcers-in-rats-characterization-of-potential-molecular-mechanisms
#13
Chaodan Luo, Hanbin Chen, Yongfu Wang, Guosheng Lin, Cailan Li, Lihua Tan, Ziren Su, Xiaoping Lai, Jianhui Xie, Huifang Zeng
AIMS: The aim of this study was to comparatively investigate the potential gastroprotective effect and underlying mechanisms of coptisine free base (CFB, 8-hydroxy-7, 8-dihydrocoptisine), berberine and lansoprazole against indomethacin-induced gastric ulcer in rats. MATERIALS AND METHODS: CFB (10, 20 and 40mg/kg), berberine (20mg/kg) and lansoprazole (30mg/kg) were orally administrated to rats prior to indometacin ingestion, and gastric lesions were evaluated macroscopically and histologically, and further analyzed by ELISA, qRT-PCR and Western blot...
December 6, 2017: Life Sciences
https://www.readbyqxmd.com/read/29223538/curcumin-induces-osteoblast-differentiation-through-mild-endoplasmic-reticulum-stress-mediated-such-as-bmp2-on-osteoblast-cells
#14
Hyo-Eun Son, Eun-Jung Kim, Won-Gu Jang
AIMS: Curcumin (diferuloylmethane or [1E,6E]-1,7-bis[4-hydroxy-3-methoxyphenyl]-1,6heptadiene-3,5-dione) is a phenolic natural product derived from the rhizomes of the turmeric plant, Curcuma longa. It is reported to have various biological actions such as anti-oxidative, anti-inflammatory, and anti-cancer effects. However, the molecular mechanism of osteoblast differentiation by curcumin has not yet been reported. MAIN METHODS: The cytotoxicity of curcumin was identified using the 3-(4,5-dimethylthiazol-2yl)-2,5-diphenyltetrazolium bromide (MTT) assay...
December 6, 2017: Life Sciences
https://www.readbyqxmd.com/read/29223420/her2-confers-resistance-to-foretinib-inhibition-of-met-amplified-esophageal-adenocarcinoma-cells
#15
Alexei A Goltsov, Bingliang Fang, Tej K Pandita, Dipen M Maru, Stephen G Swisher, Wayne L Hofstetter
BACKGROUND: Recent genomic studies indicated that esophageal adenocarcinoma (EAC) is driven by amplification of c-MET or HER2 or both in a subset of patients. We studied the effect of MET targeting by the small molecule inhibitor foretinib in EAC cells and the interplay between MET and HER2 signaling. METHODS: We measured the expression levels and phosphorylation status of MET and HER2 proteins in EAC cell lines using Western blot analysis. The expression levels of MET and HER2 were manipulated by transfecting cells with specific siRNA or a plasmid expressing HER2...
December 6, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29223407/stat3-mediated-epigenetic-silencing-of-foxp3-in-lada-t-cells-is-regulated-through-hdac5-and-dnmt1
#16
Can Hou, Yanjun Zhong, Zhen Wang, Zhao Ming, Gan Huang, Lin Ouyang, Yijun Li, Qianjin Lu, Zhiguang Zhou
In LADA patients, Tregs are reduced and FOXP3 is downregulated in CD4+ T cells, but the etiology remains unclear. Our study included in 20 LADA patients and 20 healthy control patients. qRT-PCR results showed that STAT3, HDAC3, HDAC5, SIRT1, DNMT1 and DNMT3b mRNAs were significantly upregulated in LADA CD4+ T cells than controls, while FOXP3 mRNA significantly decreased. p-STAT3, STAT3, DNMT1 and DNMT3b expressions were increased demonstrated by western blot. ChIP-PCR suggested that p-STAT3 binds to the Foxp3 promoter, meanwhile, histone H3 acetylation at K9 and K14 of FOXP3 promoter were significantly lower than controls...
December 6, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29223160/cathelicidin-ll37-promotes-epithelial-and-smooth-muscle-like-differentiation-of-adipose-derived-stem-cells-through-the-wnt-%C3%AE-catenin-and-nf-%C3%AE%C2%BAb-pathways
#17
Yongwei Li, Zhengfei Shan, Bin Yang, Diandong Yang, Changping Men, Yuanshan Cui, Jitao Wu
Ureter reconstruction is a difficult procedure in urology. Adipose-derived stem cells (ADSCs), along with multipotency and self-renewal capacity, are a preferred choice for tissue engineering-based ureteral reconstruction. We explored the synergic role of cathelicidin LL37 (LL37) in epithelial and smooth-muscle-like differentiation. ADSCs were separated from adipose tissues of mouse and characterized by flow cytometry. The ADSCs were then stably transfected with pGC-FU-GFP (pGC) or pGC containing full-length LL37 (pGC-LL37), respectively...
November 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/29223072/alteration-of-autophagy-related-proteins-in-peripheral-blood-mononuclear-cells-of-patients-with-parkinson-s-disease
#18
Yasuo Miki, Shuji Shimoyama, Tomoya Kon, Tatsuya Ueno, Ryo Hayakari, Kunikazu Tanji, Tomoh Matsumiya, Eiki Tsushima, Fumiaki Mori, Koichi Wakabayashi, Masahiko Tomiyama
Previous postmortem studies demonstrated dysregulation of autophagy in patients with Parkinson's disease (PD). To clarify whether this alteration reflects a fundamental aspect of PD or represents the final stage of autophagy dysregulation resulting from a long neurodegenerative process, we focused on basal autophagy in peripheral blood mononuclear cells (PBMCs) of PD patients (n = 35) and controls (n = 23). The whole-transcriptome assay revealed downregulation of mRNAs for 6 core regulators of autophagy (UNC-51-like kinase [ULK] 3, autophagy-related [Atg] 2A, Atg4B, Atg5, Atg16L1, and histone deacetylase 6)...
November 21, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29222853/stemazole-promotes-survival-and-preserves-stemness-in-human-embryonic-stem-cells
#19
Ying Sun, Xiaoyan Zhang, Huajun Li, Shasha Xu, Xiaoyan Zhang, Yinan Liu, Mei Han, Jinhua Wen
Human embryonic stem cells (hESCs) are extremely delicate, and survive poorly under suboptimal culture conditions, severely restricting long-term studies and practical applications. Thus, a protective agent that promotes stem cell survival is urgently needed. In this study, we evaluated the protective effects of stemazole in single-cell and starved hESC cultures. Colony formation was quantified by alkaline phosphatase and immunofluorescence staining, while apoptosis was assessed by flow cytometry and TUNEL assay...
December 8, 2017: FEBS Journal
https://www.readbyqxmd.com/read/29222553/ghrelin-attenuates-retinal-neuronal-autophagy-and-apoptosis-in-an-experimental-rat-glaucoma-model
#20
Ke Zhu, Meng-Lu Zhang, Shu-Ting Liu, Xue-Yan Li, Shu-Min Zhong, Fang Li, Ge-Zhi Xu, Zhongfeng Wang, Yanying Miao
Purpose: Ghrelin, a natural ligand for the growth hormone secretagogue receptor type 1a (GHSR-1a), may protect retinal neurons against glaucomatous injury. We therefore characterized the underlying mechanism of the ghrelin/GHSR-1a-mediated neuroprotection with a rat chronic intraocular hypertension (COH) model. Methods: The rat COH model was produced by blocking episcleral veins. A combination of immunohistochemistry, Western blot, TUNEL assay, and retrograde labeling of retinal ganglion cells (RGCs) was used...
December 1, 2017: Investigative Ophthalmology & Visual Science
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