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https://www.readbyqxmd.com/read/28535565/ephrinb-ephb-signaling-induces-hyperalgesia-through-erk5-creb-pathway-in-rats
#1
Li-Na Yu, Li-Hong Sun, Min Wang, Lie-Ju Wang, Ying Wu, Jing Yu, Wen-Na Wang, Feng-Jiang Zhang, Xue Li, Min Yan
BACKGROUND: There are numerous studies implicating that EphB receptors and ephrinB ligands play important roles in modulating the transduction of spinal nociceptive information. EphrinB-EphB signaling may contribute to hyperalgesia via various kinds of downstream molecules, the mechanisms of which have not been completely understood. OBJECTIVE: The aim of the present study was to identify whether ephrinB-EphB signaling could contribute to hyperalgesia through ERK5/CREB pathway...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28515147/increased-t-cell-infiltration-elicited-by-erk5-deletion-in-a-pten-deficient-mouse-model-of-prostate-carcinogenesis
#2
Carolyn Loveridge, Ernest Mui, Rachana Patel, Ee Hong Tan, Imran Ahmad, Michelle Welsh, Julie Galbraith, Ann Hedley, Colin Nixon, Karen Blyth, Owen J Sansom, Hing Y Leung
Prostate cancer (PCa) does not appear to respond to immune checkpoint therapies where T cell infiltration may be a key limiting factor. Here we report evidence that ablating the growth regulatory kinase Erk5 can increase T cell infiltration in an established Pten-deficient mouse model of human PCa. Mice that were doubly mutant in prostate tissue for Pten and Erk5 (prostate DKO) exhibited a markedly increased median survival with reduced tumor size and proliferation compared to control Pten-mutant mice, the latter of which exhibited increased Erk5 mRNA expression...
May 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28501623/efficient-direct-conversion-of-human-fibroblasts-into-myogenic-lineage-induced-by-co-transduction-with-mycl-and-myod1
#3
Junko Wakao, Tsunao Kishida, Shigehisa Fumino, Koseki Kimura, Kenta Yamamoto, Shinichiro Kotani, Katsura Mizushima, Yuji Naito, Toshikazu Yoshikawa, Tatsuro Tajiri, Osam Mazda
The skeletal muscle consists of contractile myofibers and plays essential roles for maintenance of body posture, movement, and metabolic regulation. During the development and regeneration of the skeletal muscle tissue, the myoblasts fuse into multinucleated myotubes that subsequently form myofibers. Transplantation of myoblasts may make possible a novel regenerative therapy against defects or dysfunction of the skeletal muscle. It is reported that rodent fibroblasts are converted into myoblast-like cells and fuse to form syncytium after forced expression of exogenous myogenic differentiation 1 (MYOD1) that is a key transcription factor for myoblast differentiation...
May 10, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28440402/erk5-regulates-tobacco-smoke%C3%A2-induced-urocystic-epithelial%C3%A2-mesenchymal-transition-in-balb-c-mice
#4
Jie Min, Hao Geng, Zhiqi Liu, Zhaofeng Liang, Zhiqiang Zhang, Dongdong Xie, Yi Wang, Tao Zhang, Dexin Yu, Caiyun Zhong
Tobacco smoke (TS) is an important risk factor of bladder cancer. Epithelial‑mesenchymal transition (EMT) is involved in the initiation and development of cancer. The role of extracellular signal‑regulated kinase (ERK) 5 in regulating TS‑induced EMT remains to be elucidated. The aim of the present study was to investigate the regulatory role of ERK5 in TS‑triggered EMT in the bladder of mice. BALB/c mice were used for an in vivo TS exposure model. Mice were treated for 6 h a day for 12 weeks. The results demonstrated that mice exposed to TS had decreased mRNA and protein expression levels of the epithelial markers E‑cadherin and zonula occludens‑1, whereas expression levels of the mesenchymal markers Vimentin and N‑cadherin were increased...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28356344/yap-promotes-myogenic-differentiation-via-the-mek5-erk5-pathway
#5
Ting-Huan Chen, Chen-Yu Chen, Hui-Chin Wen, Chia-Chu Chang, Horng-Dar Wang, Chih-Pin Chuu, Chung-Ho Chang
Yes-associated protein (YAP) is a transcriptional coactivator in the Hippo pathway that regulates cell proliferation, differentiation, and apoptosis. The MEK5/ERK5 MAPK cascade is essential for the early step of myogenesis. In this study, we generated C2C12 stable cell lines that expressed YAP (C2C12-YAP cells) and found that ERK5 and MEK5 were activated in C2C12-YAP cells compared with control C2C12 (C2C12-vector) cells. C2C12-YAP stable cells also differentiated into myotubes better than C2C12-vector cells, and expressed elevated levels of myogenin, a transcription factor that regulates myogenesis, as well as elevated levels of myosin heavy chain, a skeletal muscle marker...
March 29, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28336528/platelet-cd36-promotes-thrombosis-by-activating-redox-sensor-erk5-in-hyperlipidemic-conditions
#6
Moua Yang, Brian C Cooley, Wei Li, Yiliang Chen, Jeannette Vasquez-Vivar, Na'il O Scoggins, Scott J Cameron, Craig N Morrell, Roy L Silverstein
Atherothrombosis is a process mediated by dysregulated platelet activation that can cause life-threatening complications and is the leading cause of death by cardiovascular disease. Platelet reactivity in hyperlipidemic conditions is enhanced when platelet scavenger receptor CD36 recognizes oxidized lipids in LDL particles, a process which induces an overt prothrombotic phenotype. The mechanisms by which CD36 promotes platelet activation and thrombosis remain incompletely defined. In this study, we identify a mechanism for CD36 to promote thrombosis by increasing activation of MAP kinase ERK5, a protein kinase known to be exquisitely sensitive to redox stress, through a signaling pathway requiring Src kinases, NADPH oxidase, superoxide radical anion and hydrogen peroxide...
March 23, 2017: Blood
https://www.readbyqxmd.com/read/28322346/resveratrol-mitigates-lipopolysaccharide-mediated-acute-inflammation-in-rats-by-inhibiting-the-tlr4-nf-%C3%AE%C2%BAbp65-mapks-signaling-cascade
#7
Guangxi Wang, Zhiqiang Hu, Qiuting Fu, Xu Song, Qiankun Cui, Renyong Jia, Yuanfeng Zou, Changliang He, Lixia Li, Zhongqiong Yin
Resveratrol (RSV) is a natural compound exhibiting anti-inflammatory effect, but the anti-inflammatory mechanism has not been fully understood. This study is aimed to evaluate the anti-inflammatory activity and mechanism of RSV in lipopolysaccharides-induced rats' model. The visceral wet/dry weight ratios and the changes of hematologic and biochemical indices indicated that LPS- stimulation mainly caused damages to liver and lung, while pretreatment with RSV could alleviate the lesions. The cytokine assays showed that RSV could markedly decrease the production of proinflammatory mediators and cytokines (IL-1, IL-1β, IL-6, NO, iNOS and COX-2), and increase the expression of anti-inflammatory mediator (IL-10)...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317898/microrna-roles-in-signalling-during-lactation-an-insight-from-differential-expression-time-course-and-pathway-analyses-of-deep-sequence-data
#8
Duy N Do, Ran Li, Pier-Luc Dudemaine, Eveline M Ibeagha-Awemu
The study examined microRNA (miRNA) expression and regulatory patterns during an entire bovine lactation cycle. Total RNA from milk fat samples collected at the lactogenesis (LAC, day1 [D1] and D7), galactopoiesis (GAL, D30, D70, D130, D170 and D230) and involution (INV, D290 and when milk production dropped to 5 kg/day) stages from 9 cows was used for miRNA sequencing. A total of 475 known and 238 novel miRNAs were identified. Fifteen abundantly expressed miRNAs across lactation stages play regulatory roles in basic metabolic, cellular and immunological functions...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28284212/combination-of-glycopyrronium-and-indacaterol-inhibits-carbachol-induced-erk5-signal-in-fibrotic-processes
#9
Yukiko Namba, Shinsaku Togo, Miniwan Tulafu, Kotaro Kadoya, Kumi Yoneda Nagahama, Hikari Taka, Naoko Kaga, Akira Orimo, Xiangde Liu, Kazuhisa Takahashi
BACKGROUND: Airway fibrosis is one of the pathological features of chronic obstructive pulmonary disease (COPD), and recent studies revealed that acetylcholine plays an important role in the development of airway remodeling by stimulating proliferation and collagen synthesis of lung fibroblasts. This study was designed to examine the effects of a long-acting muscarinic receptor antagonist (LAMA) glycopyrronium and a long-acting β2 adrenergic receptor agonist (LABA) indacaterol on acetylcholine-mediated fibrotic responses in lung fibroblasts...
March 11, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28265860/neuregulin1%C3%AE-effects-on-brain-tissue-via-erk5-dependent-mapk-pathway-in-a-rat-model-of-cerebral-ischemia-reperfusion-injury
#10
Ning Gu, Keli Ge, Cui Hao, Yaqing Ji, Hongyun Li, Yunliang Guo
Neuregulin1β (NRG1β), a member of the excitomotor of tyrosine kinase receptor (erbB) family, was recently shown to play a neuroprotective role in cerebral ischemia-reperfusion injury. The present study analyzed the effects and its possible signaling pathway of NRG1β on brain tissues after cerebral ischemia-reperfusion injury. A focal cerebral ischemic model was established by inserting a monofilament thread to achieve middle cerebral artery occlusion, followed by an NRG1β injection via the internal carotid artery...
April 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28259934/curcumin-reverses-benzidine-induced-epithelial-mesenchymal-transition-via-suppression-of-erk5-ap-1-in-sv-40-immortalized-human-urothelial-cells
#11
Zhiqi Liu, Jie Liu, Li Zhao, Hao Geng, Jiaxing Ma, Zhiqiang Zhang, Dexin Yu, Caiyun Zhong
Overexposure to benzidine has been manifested as an important cause of bladder cancer. However, the molecular mechanism of benzidine-induced malignancy is still insufficiently interpreted. Epithelial-mesenchymal transition (EMT) is a crucial pathophysiological process in embryonic development as well as initiation and development of epithelium-originated malignant tumors. The role of extracellular regulated protein kinase 5 (ERK5) in benzidine-meditated bladder cancer development has not been explored. In the present study, we explored the role of ERK5/AP-1 pathway in benzidine-induced EMT in human normal urothelial cells and the intervention effect of curcumin on bezidine-induced EMT...
February 21, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28246014/montelukast-inhibits-oxidized-low-density-lipoproteins-ox-ldl-induced-vascular-endothelial-attachment-an-implication-for-the-treatment-of-atherosclerosis
#12
Xiuhua Di, Xuelu Tang, Xiuting Di
Recruitment of monocytes to endothelial cells is important during early stages of atherosclerosis development, which is activated in response to a number of inflammatory stimuli, including oxidized low-density lipoprotein (ox-LDL). Montelukast is a licensed drug approved by the Food and Drug Administration (FDA) and clinically used for the treatment of asthma by reducing the eosinophilic inflammation in the airway. Little information regarding the effects of Montelukast on endothelial inflammation has been reported before...
April 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28244877/atm-meets-erk5
#13
Maria Angulo-Ibáñez, Xavier Rovira-Clavé, Enric Espel
No abstract text is available yet for this article.
February 27, 2017: Aging
https://www.readbyqxmd.com/read/28212585/atm-mapk7-crosstalk-in-cancer
#14
José Yélamos
No abstract text is available yet for this article.
February 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28209993/suppression-of-tak1-pathway-by-shear-stress-counteracts-the-inflammatory-endothelial-cell-phenotype-induced-by-oxidative-stress-and-tgf-%C3%AE-1
#15
Ee Soo Lee, Llorenç Solé Boldo, Bernadette O Fernandez, Martin Feelisch, Martin C Harmsen
Endothelial dysfunction is characterised by aberrant redox signalling and an inflammatory phenotype. Shear stress antagonises endothelial dysfunction by increasing nitric oxide formation, activating anti-inflammatory pathways and suppressing inflammatory pathways. The TAK1 (MAP3K7) is a key mediator of inflammation and non-canonical TGF-β signalling. While the individual roles of TAK1, ERK5 (MAPK7) and TGF-β pathways in endothelial cell regulation are well characterised, an integrative understanding of the orchestration of these pathways and their crosstalk with the redox system under shear stress is lacking...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28153789/oncogenic-signaling-of-mek5-erk5
#16
Van T Hoang, Thomas J Yan, Jane E Cavanaugh, Patrick T Flaherty, Barbara S Beckman, Matthew E Burow
Mitogen-activated protein kinases (MAPKs) regulate diverse cellular processes including proliferation, cell survival, differentiation, and apoptosis. While conventional MAPK constituents have well-defined roles in oncogenesis, the MEK5 pathway has only recently emerged in cancer research. In this review, we consider the MEK5 signaling cascade, focusing specifically on its involvement in drug resistance and regulation of aggressive cancer phenotypes. Moreover, we explore the role of MEK5/ERK5 in tumorigenesis and metastatic progression, discussing the discrepancies in preclinical studies and assessing its viability as a therapeutic target for anti-cancer agents...
January 30, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28153028/il-1%C3%AE-impairs-retrograde-flow-of-bdnf-signaling-by-attenuating-endosome-trafficking
#17
Anthony J Carlos, Liqi Tong, G Aleph Prieto, Carl W Cotman
BACKGROUND: Pro-inflammatory cytokines accumulate in the brain with age and Alzheimer's disease and can impair neuron health and cognitive function. Brain-derived neurotrophic factor (BDNF) is a key neurotrophin that supports neuron health, function, and synaptic plasticity. The pro-inflammatory cytokine interleukin-1β (IL-1β) impairs BDNF signaling but whether it affects BDNF signaling endosome trafficking has not been studied. METHODS: This study uses an in vitro approach in primary hippocampal neurons to evaluate the effect of IL-1β on BDNF signaling endosome trafficking...
February 2, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28131816/traf1-is-critical-for-dmba-solar-uvr-induced-skin-carcinogenesis
#18
Hiroyuki Yamamoto, Joohyun Ryu, Eli Min, Naomi Oi, Ruihua Bai, Tatyana A Zykova, Dong Hoon Yu, Kenji Moriyama, Ann M Bode, Zigang Dong
TRAF1 is a member of the TRAF protein family, which regulates the canonical and noncanonical NF-κB signaling cascades. Although aberrant TRAF1 expression in tumors has been reported, the role of TRAF1 remains elusive. Here, we report that TRAF1 is required for solar UV-induced skin carcinogenesis. Immunohistochemical analysis showed that TRAF1 expression is up-regulated in human actinic keratosis and squamous cell carcinoma. In vivo studies indicated that TRAF1 expression levels in mouse skin are induced by short-term solar UV irradiation, and a long-term skin carcinogenesis study showed that deletion of TRAF1 in mice results in a significant inhibition of skin tumor formation...
January 25, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28130552/melatonin-micronutrients-osteopenia-treatment-study-mots-a-translational-study-assessing-melatonin-strontium-citrate-vitamin-d3-and-vitamin-k2-mk7-on-bone-density-bone-marker-turnover-and-health-related-quality-of-life-in-postmenopausal-osteopenic-women-following
#19
Sifat Maria, Mark H Swanson, Larry T Enderby, Frank D'Amico, Brianna Enderby, Rebekah M Samsonraj, Amel Dudakovic, Andre J van Wijnen, Paula A Witt-Enderby
This one-year double blind randomized control trial assessed the effects of nightly melatonin, strontium (citrate), vitamin D3 and vitamin K2 (MK7; MSDK) on bone mineral density (BMD) and quality of life (QOL) in postmenopausal osteopenic women (ages 49-75). Compared to placebo, MSDK treatment increased BMD in lumbar spine (4.3%) and left femoral neck (2.2%), with an upward trend for total left hip (p=0.069). MSDK increased serum P1NP levels and reduced bone turnover (CTx:P1NP). Psychometric analyses indicated that mood and sleep quality improved for the MSDK group...
January 26, 2017: Aging
https://www.readbyqxmd.com/read/28079882/stability-of-the-cancer-target-ddias-is-regulated-by-the-chip-hsp70-pathway-in-lung-cancer-cells
#20
Kyoung-Jae Won, Joo-Young Im, Bo-Kyung Kim, Hyun Seung Ban, Young-Jin Jung, Kyeong Eun Jung, Misun Won
DNA damage-induced apoptosis suppressor (DDIAS) rescues lung cancer cells from apoptosis in response to DNA damage. DDIAS is transcriptionally activated by NFATc1 and EGF-mediated ERK5/MEF2B, leading to cisplatin resistance and cell invasion. Therefore, DDIAS is suggested as a therapeutic target for lung cancer. Here, we report that DDIAS stability is regulated by E3 U-box ubiquitin ligase carboxyl terminus of HSP70-interacting protein (CHIP)-mediated proteasomal degradation. We first isolated CHIP as an interacting partner of DDIAS by yeast two-hybrid screening...
January 12, 2017: Cell Death & Disease
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