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https://www.readbyqxmd.com/read/29741915/the-role-of-microrna-1-targeting-mapk3-in-myocardial-ischemia-reperfusion-injury-in-rats-undergoing-sevoflurane-preconditioning-via-the-pi3k-akt-pathway
#1
Yun-Ling Hao, Hong-Cheng Fang, Hong-Lei Zhao, Xiao-Li Li, Ying Luo, Bao-Quan Wu, Ming-Jie Fu, Wei Liu, Jin-Jie Liang, Xie-Hui Chen
Recent studies have uncovered the vital roles played by microRNAs (miRNAs) in regulating cardiac injury. Amongst them, the cardiac enriched microRNA-1 (miR-1) has been extensively studied and proven to be detrimental to cardiac myocytes. Hence, the current study aims to explore whether miR-1 affects myocardial ischemia/reperfusion injury (MIRI) in rats undergoing sevoflurane preconditioning and the underlying mechanism. After successful model establishment, rats with MIRI were transfected with mimics or inhibitors of miR-1, or siRNA against MAPK3, and then were injected with sevoflurane...
May 9, 2018: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29564801/bioinformatics-based-therapeutic-effects-of-sinomenium-acutum
#2
Yu-Yan Li, Guang Zheng, Liang Liu
OBJECTIVE: To decipher the possible mechanisms of Sinomenium Acutum (SA) in treating diseases by a bioinformatics method. METHODS: SA ingredients were searched according to Chinese Pharmacopoeia, Chinese Medicine Dictionary and Traditional Chinese Medicines Database (TCMD). Active compounds and target proteins of SA were acquired through the Pubchem platform. Pathway, network and function analyses of SA were performed with ingenuity pathway analysis (IPA), a bioinformatics analysis platform...
March 21, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29550500/distinct-signalling-properties-of-insulin-receptor-substrate-irs-1-and-irs-2-in-mediating-insulin-igf-1-action
#3
Atefeh Rabiee, Marcus Krüger, Jacob Ardenkjær-Larsen, C Ronald Kahn, Brice Emanuelli
Insulin/IGF-1 action is driven by a complex and highly integrated signalling network. Loss-of-function studies indicate that the major insulin/IGF-1 receptor substrate (IRS) proteins, IRS-1 and IRS-2, mediate different biological functions in vitro and in vivo, suggesting specific signalling properties despite their high degree of homology. To identify mechanisms contributing to the differential signalling properties of IRS-1 and IRS-2 in the mediation of insulin/IGF-1 action, we performed comprehensive mass spectrometry (MS)-based phosphoproteomic profiling of brown preadipocytes from wild type, IRS-1-/- and IRS-2-/- mice in the basal and IGF-1-stimulated states...
July 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29550383/liposomal-grb2-antisense-oligodeoxynucleotide-bp1001-in-patients-with-refractory-or-relapsed-haematological-malignancies-a-single-centre-open-label-dose-escalation-phase-1-1b-trial
#4
Maro Ohanian, Ana Tari Ashizawa, Guillermo Garcia-Manero, Naveen Pemmaraju, Tapan Kadia, Elias Jabbour, Farhad Ravandi, Gautam Borthakur, Michael Andreeff, Marina Konopleva, Miranda Lim, Sherry Pierce, Susan O'Brien, Yesid Alvarado, Srdan Verstovsek, William Wierda, Hagop Kantarjian, Jorge Cortes
BACKGROUND: Activating mutations of tyrosine kinases are common in leukaemias. Oncogenic tyrosine kinases use the growth factor receptor-bound protein 2 (Grb2) for signal transduction, leading to activation of mitogen-activated protein kinase (MAPK) 1 and MAPK3 (ERK2 and ERK1). We hypothesised that inhibition of Grb2 would suppress ERK1 and ERK2 activation and inhibit leukaemia progression. To inhibit Grb2, a liposome-incorporated antisense oligodeoxynucleotide that blocks Grb2 protein expression, BP1001, was developed...
April 2018: Lancet Haematology
https://www.readbyqxmd.com/read/29537306/deciphering-metabonomics-biomarkers-targets-interactions-for-psoriasis-vulgaris-by-network-pharmacology
#5
Jiangyong Gu, Li Li, Dongmei Wang, Wei Zhu, Ling Han, Ruizhi Zhao, Xiaojie Xu, Chuanjian Lu
OBJECTIVES: Psoriasis vulgaris is a chronic inflammatory and immune-mediated skin disease. 44 metabonomics biomarkers were identified by high-throughput liquid chromatography coupled to mass spectrometry in our previous work, but the roles of metabonomics biomarkers in the pathogenesis of psoriasis is unclear. METHODS: The metabonomics biomarker-enzyme network was constructed. The key metabonomics biomarkers and enzymes were screened out by network analysis. The binding affinity between each metabonomics biomarker and target was calculated by molecular docking...
June 2018: Annals of Medicine
https://www.readbyqxmd.com/read/29518019/network-based-identification-of-altered-stem-cell-pluripotency-and-calcium-signaling-pathways-in-metastatic-melanoma
#6
Ben-Hur Neves de Oliveira, Carla Dalmaz, Fares Zeidán-Chuliá
Malignancy of cancer has been linked to distinct subsets of stem-like cells, the so-called cancer stem cells (CSCs), which persist during treatment and seem to lead to drug-resistant recurrence. Metastatic spread of cancer cells is one of the hallmarks of malignancy and contributes to most human melanoma-related deaths. Recently, overlapping groups of proteins and pathways were shown to regulate stem cell migration and cancer metastasis, raising the question of whether genes/proteins involved in stem cell pluripotency may have important implications when applied to the biology of cancer metastasis...
March 8, 2018: Medical Sciences: Open Access Journal
https://www.readbyqxmd.com/read/29464057/construction-of-key-signal-regulatory-network-in-metastatic-colorectal-cancer
#7
Lu Qi, Yanqing Ding
There are many stages in the development and metastasis of colorectal cancer (CRC). In this study, we compared the differential expression genes in different stages of metastatic CRC. Then, we screened the continuously up-regulated genes and the continuously down-regulated genes that were associated with the development and metastasis of CRC. After analyzing the intersection of differential expression genes in each stage, we screened the continuously up-regulated genes and deviated genes in the extracellular matrix and the continuously down-regulated genes and deviated genes in the mitochrondia of CRC...
January 19, 2018: Oncotarget
https://www.readbyqxmd.com/read/29399553/effects-of-ectoine-on-behavior-and-candidate-genes-expression-in-icv-stz-rat-model-of-sporadic-alzheimer-s-disease
#8
Niloofar Bazazzadegan, Marzieh Dehghan Shasaltaneh, Kioomars Saliminejad, Koorosh Kamali, Mehdi Banan, Reza Nazari, Gholam Hossein Riazi, Hamid Reza Khorram Khorshid
Purpose: Alzheimer's disease (AD) is pathologically defined by the presence of amyloid plaques and tangles in the brain, therefore, any drug or compound with potential effect on lowering amyloid plaques, could be noticed for AD management especially in the primary phases of the disease. Ectoine constitutes a group of small molecule chaperones (SMCs). SMCs inhibit proteins and other changeable macromolecular structures misfolding from environmental stresses. Ectoine has been reported successfully prohibit insulin amyloid formation in vitro...
December 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29371955/a-comparative-global-phosphoproteomics-analysis-of-obinutuzumab-ga101-versus-rituximab-rtx-against-rtx-sensitive-and-resistant-burkitt-lymphoma-bl-demonstrates-differential-phosphorylation-of-signaling-pathway-proteins-after-treatment
#9
Aradhana Awasthi, Delphine C M Rolland, Janet Ayello, Carmella van de Ven, Venkatesha Basrur, Kevin Conlon, Damian Fermin, Matthew J Barth, Christian Klein, Kojo S J Elenitoba-Johnson, Megan S Lim, Mitchell S Cairo
We recently demonstrated that obinutuzumab (GA101), a novel glycoengineered type II CD20 Ab compared to rituximab (RTX) mediates significantly enhanced antibody-dependent cell cytotoxicity (ADCC) in vitro and increased overall survival in a Burkitt lymphoma (BL) xenograft non-obese diabetic severe combined immunodeficiency gamma (NSG) model. In this study we compared the phosphoproteomic changes by pathway analysis following obinutuzumab vs RTX against RTX-sensitive (Raji) and -resistant BL (Raji4RH). Phosphoproteomic analyses were performed by mass-spectrometry (MS)-based label-free quantitative phosphoproteomic profiling...
December 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/29364174/molecular-understanding-of-the-activation-of-cb1-and-blockade-of-trpv1-receptors-implications-for-novel-treatment-strategies-in-osteoarthritis
#10
Jakub Mlost, Magdalena Kostrzewa, Natalia Malek, Katarzyna Starowicz
Osteoarthritis (OA) is a joint disease in which cartilage degenerates as a result of mechanical and biochemical changes. The main OA symptom is chronic pain involving both peripheral and central mechanisms of nociceptive processing. Our previous studies have implicated the benefits of dual- over single-acting compounds interacting with the endocannabinoid system (ECS) in OA treatment. In the present study, we focused on the specific molecular alterations associated with pharmacological treatment. OA was induced in Wistar rats by intra-articular injection of 3 mg of monoiodoacetate (MIA)...
January 24, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29352988/stat3-as-a-promising-chemoresistance-biomarker-associated-with-the-cd44-high-cd24-low-aldh-bcscs-like-subset-of-the-triple-negative-breast-cancer-tnbc-cell-line
#11
Milene Pereira Moreira, Letícia da Conceição Braga, Geovanni Dantas Cassali, Luciana Maria Silva
The cancer stem cell (CSC) concept is currently employed to explain the mechanism of multidrug resistance that is implicated in the reduced efficacy of many chemotherapeutic agents, consequently leading to metastatic spread and disease relapse. We searched for potential predictive markers of doxorubicin (DOX) resistance in breast cancer stem cells (BCSCs) of the BT-549 human triple-negative breast cancer (TNBC) cell line classified as a claudin-low subtype. In this study, we show that BT-549 presents a BCSCs-like subset determined by a CD44+/high /CD24-/low /ALDH1+ phenotype...
February 15, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29343958/preparation-of-anastrozole-loaded-peg-pla-nanoparticles-evaluation-of-apoptotic-response-of-breast-cancer-cell-lines
#12
Yusra A Alyafee, Manal Alaamery, Shahad Bawazeer, Mansour S Almutairi, Badr Alghamdi, Nawaf Alomran, Atia Sheereen, Maha Daghestani, Salam Massadeh
Purpose: Anastrozole (ANS) is an aromatase inhibitor that is widely used as a treatment for breast cancer in postmenopausal women. Despite the wide use of ANS, it is associated with serious side effects due to uncontrolled delivery. In addition, ANS exhibits low solubility and short plasma half-life. Nanotechnology-based drug delivery has the potential to enhance the efficacy of drugs and overcome undesirable side effects. In this study, we aimed to prepare novel ANS-loaded PLA-PEG-PLA nanoparticles (ANS-NPs) and to compare the apoptotic response of MCF-7 cell line to both ANS and ANS-loaded NPs...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29339359/genetic-variants-in-immune-related-pathways-and-breast-cancer-risk-in-african-american-women-in-the-amber-consortium
#13
Chi-Chen Hong, Lara E Sucheston-Campbell, Song Liu, Qiang Hu, Song Yao, Kathryn L Lunetta, Stephen A Haddad, Edward A Ruiz-Narváez, Jeannette T Bensen, Ting-Yuan David Cheng, Elisa V Bandera, Lynn A Rosenberg, Christopher A Haiman, Kelvin Lee, Sharon S Evans, Scott I Abrams, Elizabeth A Repasky, Andrew F Olshan, Julie R Palmer, Christine B Ambrosone
Background: Constitutional immunity shaped by exposure to endemic infectious diseases and parasitic worms in Sub-Saharan Africa may play a role in the etiology of breast cancer among African American (AA) women. Methods: A total of 149,514 gene variants in 433 genes across 45 immune pathways were analyzed in the AMBER consortium among 3,663 breast cancer cases and 4,687 controls. Gene-based pathway analyses were conducted using the adaptive rank truncated product statistic for overall breast cancer risk, and risk by estrogen receptor (ER) status...
March 2018: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/29332294/detection-of-mapk3-6-phosphorylation-during-hypersensitive-response-hr-associated-programmed-cell-death-in-plants
#14
Qingyu Wu, David Jackson
Programmed cell death (PCD) is an essential component of development, biotic and abiotic responses. Hypersensitive response (HR)-associated cell death activated under pathogen attack is one of the most dramatic manifestations of PCD in plants. Signal transduction through mitogen-activated protein kinase (MAPK) cascades, a very conserved signaling pathway across eukaryotes, is a core mediator for HR-associated PCD. Therefore, monitoring MAPK activation enables the mechanisms underlying HR-associated PCD to be elucidated...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29332228/comparative-evaluation-of-the-aqueous-humor-proteome-of-primary-angle-closure-and-primary-open-angle-glaucomas-and-age-related-cataract-eyes
#15
Inderjeet Kaur, Jasbir Kaur, K Sooraj, Sandeep Goswami, Rohit Saxena, Virander Singh Chauhan, Ramanjit Sihota
PURPOSE: To analyze and compare the total proteome of aqueous humor (AH) from patients having primary angle closure glaucoma (PACG), primary open angle glaucoma (POAG) and age-related cataract. MATERIALS AND METHODOLOGY: Aqueous humor was collected from age-matched PACG, POAG and cataract patients who underwent surgery, and it was immediately stored at - 80 °C until analysis. From each sample, 25 µg of total protein was subjected to trypsin digestion and subsequently LC-MS/MS analysis was performed for the deep proteome analysis...
January 13, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29331044/journey-of-oocyte-from-metaphase-i-to-metaphase-ii-stage-in-mammals
#16
Alka Sharma, Meenakshi Tiwari, Anumegha Gupta, Ashutosh N Pandey, Pramod K Yadav, Shail K Chaube
In mammals, journey from metaphase-I (M-I) to metaphase-II (M-II) is important since oocyte extrude first polar body (PB-I) and gets converted into haploid gamete. The molecular and cellular changes associated with meiotic cell cycle progression from M-I to M-II stage and extrusion of PB-I remain ill understood. Several factors drive oocyte meiosis from M-I to M-II stage. The mitogen-activated protein kinase3/1 (MAPK3/1), signal molecules and Rho family GTPases act through various pathways to drive cell cycle progression from M-I to M-II stage...
January 13, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29326975/identifying-the-substrate-proteins-of-u-box-e3s-e4b-and-chip-by-orthogonal-ubiquitin-transfer
#17
Karan Bhuripanyo, Yiyang Wang, Xianpeng Liu, Li Zhou, Ruochuan Liu, Duc Duong, Bo Zhao, Yingtao Bi, Han Zhou, Geng Chen, Nicholas T Seyfried, Walter J Chazin, Hiroaki Kiyokawa, Jun Yin
E3 ubiquitin (UB) ligases E4B and carboxyl terminus of Hsc70-interacting protein (CHIP) use a common U-box motif to transfer UB from E1 and E2 enzymes to their substrate proteins and regulate diverse cellular processes. To profile their ubiquitination targets in the cell, we used phage display to engineer E2-E4B and E2-CHIP pairs that were free of cross-reactivity with the native UB transfer cascades. We then used the engineered E2-E3 pairs to construct "orthogonal UB transfer (OUT)" cascades so that a mutant UB (xUB) could be exclusively used by the engineered E4B or CHIP to label their substrate proteins...
January 2018: Science Advances
https://www.readbyqxmd.com/read/29315347/long-term-ethanol-exposure-temporal-pattern-of-microrna-expression-and-associated-mrna-gene-networks-in-mouse-brain
#18
Elizabeth A Osterndorff-Kahanek, Gayatri R Tiwari, Marcelo F Lopez, Howard C Becker, R Adron Harris, R Dayne Mayfield
Long-term alcohol use can result in lasting changes in brain function, ultimately leading to alcohol dependence. These functional alterations arise from dysregulation of complex gene networks, and growing evidence implicates microRNAs as key regulators of these networks. We examined time- and brain region-dependent changes in microRNA expression after chronic intermittent ethanol (CIE) exposure in C57BL/6J mice. Animals were sacrificed at 0, 8, and 120h following the last exposure to four weekly cycles of CIE vapor and we measured microRNA expression in prefrontal cortex (PFC), nucleus accumbens (NAC), and amygdala (AMY)...
2018: PloS One
https://www.readbyqxmd.com/read/29313809/parp1-facilitates-ep300-recruitment-to-the-promoters-of-the-subset-of-rbl2-dependent-genes
#19
Agnieszka Robaszkiewicz, Ewelina Wiśnik, Zsolt Regdon, Kinga Chmielewska, László Virág
Differentiation of human monocytes is associated with proliferation arrest resulting from activation of the inter alia retinoblastoma protein family of gene repressors, which target gene promoters in an E2F-dependent manner. To investigate RBL2 contribution to defining monocyte phenotype and function, we used primer libraries. We identified genes encoding two surface receptors (CXCR1 and IL17RE) and two TLR signaling mediators (CD86 and NFKB2) that are repressed by the RBL2-E2F4-HDAC1-BRM complex. Surprisingly, PARP1 co-regulated 24 out of the 28 identified genes controlled by RBL2...
December 4, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29282071/analysis-of-the-main-active-ingredients-and-bioactivities-of-essential-oil-from-osmanthus-fragrans-var-thunbergii-using-a-complex-network-approach
#20
Le Wang, Nana Tan, Jiayao Hu, Huan Wang, Dongzhu Duan, Lin Ma, Jian Xiao, Xiaoling Wang
BACKGROUND: Osmanthus fragrans has been used as folk medicine for thousands of years. The extracts of Osmanthus fragrans flowers were reported to have various bioactivities including free radical scavenging, anti-inflammation, neuroprotection and antitumor effects. However, there is still lack of knowledge about its essential oil. METHODS: In this work, we analyzed the chemical composition of the essential oil from Osmanthus fragrans var. thunbergii by GC-MS. A complex network approach was applied to investigate the interrelationships between the ingredients, target proteins, and related pathways for the essential oil...
December 28, 2017: BMC Systems Biology
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