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https://www.readbyqxmd.com/read/28645174/adrenomedullin-promotes-the-odontogenic-differentiation-of-dental-pulp-stem-cells-through-creb-bmp2-signaling-pathway
#1
Qiang Zhu, Jianyong Gao, Gang Tian, Zhen Tang, Yinghui Tan
No abstract text is available yet for this article.
June 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28645103/colxv-promotes-adipocyte-differentiation-via-inhibiting-dna-methylation-and-camp-pka-pathway-in-mice
#2
Guannv Liu, Meihang Li, Yatao Xu, Song Wu, Muhammad Saeed, Chao Sun
Extracellular matrix (ECM), as an essential component of adipose tissue, not only provides mechanical support for adipocyte growth, but also participates in ECM-adipocyte communication via various secreted proteins, including highly enriched collagens. Collagen XV (ColXV) is a secreted non-fibrillar collagen within ECM Basement Membrane (BM) zones and well recognized as a tumor suppressor. However, the role of ColXV in adipose tissue is still unknown. In this study, high fat diet (HFD) fed mice were used as obese model, in which we deeply investigated the interaction between ColXV and adipocyte differentiation or adipose metabolism...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28640852/differential-roles-of-3-hydroxyflavone-and-7-hydroxyflavone-against-nicotine-induced-oxidative-stress-in-rat-renal-proximal-tubule-cells
#3
Bidisha Sengupta, Mehdi Sahihi, Monireh Dehkhodaei, Darrian Kelly, Istvan Arany
Plant flavonoids are well known as antioxidants against oxidative stress induced by exposure to external pollutants. Nicotine (NIC) is one of those agents which increases renal oxidative stress, an important factor in the pathogenesis of renal epithelial injury in smokers. Although several studies had been conducted on flavonoids and oxidative stress, the mechanism of the protective pathways are not fully understood. Here, we present studies on antioxidant properties of two mono-hydroxyflavone isomers, 3-hydroxyflanove (3HF)- and 7-hydroxyflavone (7HF), against nicotine-associated oxidative stress and injury in cultured renal proximal tubule cells and correlate their antioxidant properties with their chemical structure...
2017: PloS One
https://www.readbyqxmd.com/read/28638088/chemokine-receptor-cxcr4-regulates-camkii-creb-pathway-in-spinal-neurons-that-underlies-cancer-induced-bone-pain
#4
Xue-Ming Hu, Hui Zhang, Heng Xu, Hai-Long Zhang, Li-Ping Chen, Wen-Qiang Cui, Wei Yang, Wen Shen
We previously demonstrated that the chemokine receptor CXCR4 plays an important role in cancer-induced bone pain by activating spinal neurons and glial cells. However, the specific neuronal mechanism of CXCR4 signaling is not clear. We further report that CXCR4 contributes to the activation of the neuronal CaMKII/CREB pathway in cancer-induced bone pain. We used a tumor cell implantation (TCI) model and observed that CXCR4, p-CaMKII and p-CREB were persistently up-regulated in spinal neurons. CXCR4 also co-expressed with p-CaMKII and p-CREB, and mediated p-CaMKII and p-CREB expression after TCI...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630323/role-of-the-cbp-catalytic-core-in-intramolecular-sumoylation-and-control-of-histone-h3-acetylation
#5
Sangho Park, Robyn L Stanfield, Maria A Martinez-Yamout, H Jane Dyson, Ian A Wilson, Peter E Wright
The histone acetyl transferases CREB-binding protein (CBP) and its paralog p300 play a critical role in numerous cellular processes. Dysregulation of their catalytic activity is associated with several human diseases. Previous work has elucidated the regulatory mechanisms of p300 acetyltransferase activity, but it is not known whether CBP activity is controlled similarly. Here, we present the crystal structure of the CBP catalytic core encompassing the bromodomain (BRD), CH2 (comprising PHD and RING), HAT, and ZZ domains at 2...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28630091/b-1a-cells-protect-mice-from-sepsis-critical-role-of-creb
#6
Monowar Aziz, Nichol E Holodick, Thomas L Rothstein, Ping Wang
Bacterial sepsis is a serious life-threatening condition caused by an excessive immune response to infection. B-1 cells differ from conventional B-2 cells by their distinct phenotype and function. A subset of B-1 cells expressing CD5, known as B-1a cells, exhibits innate immune activity. Here we report that B-1a cells play a beneficial role in sepsis by mitigating exaggerated inflammation through a novel mechanism. Using a mouse model of bacterial sepsis, we found that the numbers of B-1a cells in various anatomical locations were significantly decreased...
June 19, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28629115/osthole-enhances-osteogenesis-in-osteoblasts-by-elevating-transcription-factor-osterix-via-camp-creb-signaling-in-vitro-and-in-vivo
#7
Zhong-Rong Zhang, Wing Nang Leung, Gang Li, Siu Kai Kong, Xiong Lu, Yin Mei Wong, Chun Wai Chan
Anabolic anti-osteoporotic agents are desirable for treatment and prevention of osteoporosis and fragility fractures. Osthole is a coumarin derivative extracted from the medicinal herbs Cnidium monnieri (L.) Cusson and Angelica pubescens Maxim.f. Osthole has been reported with osteogenic and anti-osteoporotic properties, whereas the underlying mechanism of its benefit still remains unclear. The objective of the present study was to investigate the osteopromotive action of osthole on mouse osteoblastic MC3T3-E1 cells and on mouse femoral fracture repair, and to explore the interaction between osthole-induced osteopromotive effect and cyclic adenosine monophosphate (cAMP) elevating effect...
June 8, 2017: Nutrients
https://www.readbyqxmd.com/read/28628832/young-leaves-of-reed-phragmites-communis-suppress-melanogenesis-and-oxidative-stress-in-b16f10-melanoma-cells
#8
Mi-Ok Sim, Ju Ri Ham, Mi-Kyung Lee
This study investigated the effects young leaves of reed (Phragmites communis) water extract (YLR) on melanogenesis and oxidative stress using B16F10 cells. YLR decreased the intracellular melanin content, protein expression and enzyme activity of tyrosinase in a dose-dependent manner. YLR significantly decreased the gene and protein expression of melanogeneis-related proteins, such as microphthalmia-associated transcription factor (MITF), and tyrosinase-related protein-1 and -2. In addition, YLR up-regulated the melanogenesis inhibitory proteins, extracellular signal-regulated kinase (ERK) and protein kinase B (AKT), while it dose-dependently down-regulated p38 and cAMP response element-binding protein (CREB)...
June 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28627884/hdx-ms-reveals-calcium-binding-properties-and-allosteric-regulation-of-downstream-regulatory-element-antagonist-modulator-dream
#9
Jun Zhang, Jing Li, Theodore A Craig, Rajiv Kumar, Michael L Gross
Downstream regulatory element antagonist modulator (DREAM) is an EF-hand Ca2+-binding protein that also binds to specific DNA sequence, downstream regulatory elements (DRE), and thereby regulates transcription in a calcium-dependent fashion. DREAM binds to DRE in the absence of Ca2+, but detaches from DRE under Ca2+ stimulation, allowing gene expression. The Ca2+-binding properties of DREAM and the consequences of the binding on protein structure are key to understanding the function of DREAM. Here we describe the application of hydrogen deuterium exchange mass spectrometry (HDX-MS) and site-directed mutagenesis to investigate the Ca2+ binding properties and the subsequent conformational changes of full length DREAM...
June 19, 2017: Biochemistry
https://www.readbyqxmd.com/read/28627368/photoactivation-of-erk-creb-vmat2-pathway-attenuates-mpp-induced-neuronal-injury-in-a-cellular-model-of-parkinson-s-disease
#10
Xiaotong Gu, Lei Liu, Qi Shen, Da Xing
The vesicular monoamine transporter 2 (VMAT2) pumps dopamine from cytoplasm into synaptic vesicles for subsequent release, and the deficits of VMAT2 has been implicated in the dopaminergic neuronal cell loss which is considered as a typical pathological feature of Parkinson's disease (PD). Low-power laser irradiation (LPLI), a potent noninvasive physiotherapy approach, is capable of penetrating into nerve tissue to exert beneficial effects such as promoting nerve regeneration and ATP production. In the present study, we demonstrated that LPLI protects against MPP(+)-induced neurotoxicity via upregulation of VMAT2 in SH-SY5Y human dopaminergic neuroblastoma cells...
June 13, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28624596/repeated-co-treatment-with-antidepressants-and-risperidone-increases-bdnf-mrna-and-protein-levels-in-rats
#11
Zofia Rogóż, Katarzyna Kamińska, Patrycja Pańczyszyn-Trzewik, Magdalena Sowa-Kućma
BACKGROUND: Recently, several clinical studies have suggested a beneficial effect of a combination of antidepressants (ADs) with antipsychotic drugs in drug-resistant depression. Moreover, preclinical and clinical studies indicated a role of brain-derived neurotrophic factor (BDNF) in the pathology of depression, as well as in the mechanism of action of ADs. METHODS: In the present study, we investigated the effect of repeated administration of ADs, escitalopram, fluoxetine or mirtazapine and a low dose of risperidone (an atypical antipsychotic drug) given separately or in combination, on the mRNA and protein levels of BDNF or cAMP response element binding (p-CREB) in the hippocampus and frontal cortex of male Wistar rats...
March 4, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28624220/tat-hafgf14-154-upregulates-adam10-to-attenuate-the-alzheimer-phenotype-of-app-ps1-mice-through-the-pi3k-creb-ire1%C3%AE-xbp1-pathway
#12
Tian Meng, Qin Cao, Peng Lei, Ashley I Bush, Qi Xiang, Zhijian Su, Xiang He, Jack T Rogers, Ing-Ming Chiu, Qihao Zhang, Yadong Huang
Acid fibroblast growth factor (aFGF) has shown neuroprotection in Alzheimer's disease (AD) models in previous studies, yet its mechanism is still uncertain. Here we report that the efficacy of Tat-haFGF14-154 is markedly increased when loaded cationic liposomes for intranasal delivery are intranasally administered to APP/PS1 mice. Our results demonstrated that liposomal Tat-haFGF14-154 treatment significantly ameliorated behavioral deficits, relieved brain Aβ burden, and increased the expression and activity of disintegrin and metalloproteinase domain-containing protein 10 (ADAM10) in the brain...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28621687/differentially-expressed-lncrnas-and-mirnas-with-associated-cerna-networks-in-aged-mice-with-postoperative-cognitive-dysfunction
#13
Changwei Wei, Ting Luo, Shanshan Zou, Xiaobin Zhou, Wenzhen Shen, Xiaolin Ji, Qi Li, Anshi Wu
Postoperative cognitive dysfunction (POCD) is a common postoperative complication observed in elderly patients. Using microarray analyses, we comprehensively compared long non-coding RNA (lncRNA), messenger RNA (mRNA), and microRNA (miRNA) expression profiles in hippocampal tissues from a mouse model of POCD and control mice. A total of 175 lncRNAs, 117 mRNAs, and 26 miRNAs were differentially expressed between POCD and control mice. Gene ontology (GO) and KEGG pathway enrichment analyses were performed to explore the principal functions of dysregulated genes...
June 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28620651/role-of-an-adenylyl-cyclase-isoform-in-ethanol-s-effect-on-camp-regulated-gene-expression-in-nih-3t3-cells
#14
Rebecca A Hill, Wu Xu, Masami Yoshimura
Previous research has indicated that the cyclic AMP (cAMP) signal transduction system plays an important role in the predisposition to and development of ethanol abuse in humans. Our laboratory has demonstrated that ethanol is capable of enhancing adenylyl cyclase (AC) activity. This effect is AC isoform-specific; type 7 AC (AC7) is most enhanced by ethanol. Therefore, we hypothesized that the expression of a specific AC isoform will play a role on the effect of ethanol on cAMP regulated gene expression. We employed NIH 3T3 cells transfected with AC7 or AC3 as a model system...
December 2016: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28618421/identification-of-tisp40-as-an-essential-regulator-of-renal-tubulointerstitial-fibrosis-via-tgf-%C3%AE-smads-pathway
#15
Cheng-Cheng Xiao, Jie Zhang, Peng-Cheng Luo, Cong Qin, Yang Du, Jin-Zhuo Ning, Hai-Zhou Zheng
BACKGROUND: Tisp40, a transcription factor of the CREB/CREM family, is involved in cell proliferation, differentiation and other biological functions, but its role in renal tubulointerstitial fibrosis is unknown. METHODS: In our study, we investigated the effects of Tisp40 on extracellular matrix (ECM) accumulation, epithelial-mesenchymal transition (EMT) and the underlying molecular mechanisms in transforming growth factor-β (TGF-β)-stimulated TCMK-1 cells by quantitative real-time polymerase chain reaction (qPCR), Western blot analysis and immunofluorescence in vitro, and further explored the role of Tisp40 on renal fibrosis induced by ischemia-reperfusion (I/R) by qPCR, Western blot analysis, hydroxyproline analysis, Masson trichrome staining and immunohistochemistry staining in vivo...
June 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28615245/the-regulatory-1%C3%AE-subunit-of-protein-kinase-a-modulates-renal-cystogenesis
#16
Hong Ye, Xiaofang Wang, Megan M Constans, Caroline R Sussman, Fouad Chebib, Maria V Irazabal, William F Young, Peter C Harris, Lawrence S Kirschner, Vicente E Torres
The failure of the polycystins (PCs) to function in primary cilia is thought to be responsible for Autosomal Dominant Polycystic Kidney Disease (ADPKD). Primary cilia integrate multiple cellular signaling pathways, including calcium, cAMP, Wnt, and Hedgehog, which control cell proliferation and differentiation. It has been proposed that mutated PCs result in reduced intracellular calcium, which in turn upregulates cAMP, protein kinase A (PKA) signaling, and subsequently other proliferative signaling pathways...
June 14, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28614705/a-uv-independent-topical-small-molecule-approach-for-melanin-production-in-human-skin
#17
Nisma Mujahid, Yanke Liang, Ryo Murakami, Hwan Geun Choi, Allison S Dobry, Jinhua Wang, Yusuke Suita, Qing Yu Weng, Jennifer Allouche, Lajos V Kemeny, Andrea L Hermann, Elisabeth M Roider, Nathanael S Gray, David E Fisher
The presence of dark melanin (eumelanin) within human epidermis represents one of the strongest predictors of low skin cancer risk. Topical rescue of eumelanin synthesis, previously achieved in "redhaired" Mc1r-deficient mice, demonstrated significant protection against UV damage. However, application of a topical strategy for human skin pigmentation has not been achieved, largely due to the greater barrier function of human epidermis. Salt-inducible kinase (SIK) has been demonstrated to regulate MITF, the master regulator of pigment gene expression, through its effects on CRTC and CREB activity...
June 13, 2017: Cell Reports
https://www.readbyqxmd.com/read/28613456/erratum-to-creb-activity-is-required-for-luteinizing-hormone-induced-the-expression-of-egf-like-factors
#18
(no author information available yet)
No abstract text is available yet for this article.
June 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28611691/morphine-reward-promotes-cue-sensitive-learning-implication-of-dorsal-striatal-creb-activity
#19
Mathieu Baudonnat, Jean-Louis Guillou, Marianne Husson, Veronique D Bohbot, Lars Schwabe, Vincent David
Different parallel neural circuits interact and may even compete to process and store information: whereas stimulus-response (S-R) learning critically depends on the dorsal striatum (DS), spatial memory relies on the hippocampus (HPC). Strikingly, despite its potential importance for our understanding of addictive behaviors, the impact of drug rewards on memory systems dynamics has not been extensively studied. Here, we assessed long-term effects of drug- vs food reinforcement on the subsequent use of S-R vs spatial learning strategies and their neural substrates...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28611284/activation-of-the-atf2-creb-pgc-1%C3%AE-pathway-by-metformin-leads-to-dopaminergic-neuroprotection
#20
Hojin Kang, Rin Khang, Sangwoo Ham, Ga Ram Jeong, Hyojung Kim, Minkyung Jo, Byoung Dae Lee, Yun Il Lee, Areum Jo, Chi Hu Park, Hyein Kim, Jeongkon Seo, Sun Ha Paek, Yun-Song Lee, Jeong-Yun Choi, Yunjong Lee, Joo-Ho Shin
Progressive dopaminergic neurodegeneration is responsible for the canonical motor deficits in Parkinson's disease (PD). The widely prescribed anti-diabetic medicine metformin is effective in preventing neurodegeneration in animal models; however, despite the significant potential of metformin for treating PD, the therapeutic effects and molecular mechanisms underlying dopaminergic neuroprotection by metformin are largely unknown.In this study, we found that metformin induced substantial proteomic changes, especially in metabolic and mitochondrial pathways in the substantia nigra (SN)...
May 24, 2017: Oncotarget
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