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https://www.readbyqxmd.com/read/28623166/casein-kinase-ii-ck2-glycogen-synthase-kinase-3-gsk-3-and-ikaros-mediated-regulation-of-leukemia
#1
REVIEW
Chandrika Gowda, Mario Soliman, Malika Kapadia, Yali Ding, Kimberly Payne, Sinisa Dovat
Signaling networks that regulate cellular proliferation often involve complex interactions between several signaling pathways. In this manuscript we review the crosstalk between the Casein Kinase II (CK2) and Glycogen Synthase Kinase-3 (GSK-3) pathways that plays a critical role in the regulation of cellular proliferation in leukemia. Both CK2 and GSK-3 are potential targets for anti-leukemia treatment. Previously published data suggest that CK2 and GSK-3 act synergistically to promote the phosphatidylinositol-3 kinase (PI3K) pathway via phosphorylation of PTEN...
June 13, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28619606/pivotal-roles-of-glycogen-synthase-3-in-hepatocellular-carcinoma
#2
REVIEW
Melchiorre Cervello, Giuseppa Augello, Antonella Cusimano, Maria Rita Emma, Daniele Balasus, Antonina Azzolina, James A McCubrey, Giuseppe Montalto
Hepatocellular carcinoma (HCC) is one of the most common cancers in the world, and represents the second most frequently cancer and third most common cause of death from cancer worldwide. At advanced stage, HCC is a highly aggressive tumor with a poor prognosis and with very limited response to common therapies. Therefore, there is still the need for new effective and well-tolerated therapeutic strategies. Molecular-targeted therapies hold promise for HCC treatment. One promising molecular target is the multifunctional serine/threonine kinase glycogen synthase kinase 3 (GSK-3)...
June 6, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28596475/enhanced-efficacy-of-akt-and-fak-kinase-combined-inhibition-in-squamous-cell-lung-carcinomas-with-stable-reduction-in-pten
#3
Andrea Cavazzoni, Silvia La Monica, Roberta Alfieri, Andrea Ravelli, Nele Van Der Steen, Rocco Sciarrillo, Denise Madeddu, Costanza Anna Maria Lagrasta, Federico Quaini, Mara Bonelli, Claudia Fumarola, Daniele Cretella, Graziana Digiacomo, Marcello Tiseo, Godefridus J Peters, Andrea Ardizzoni, Pier Giorgio Petronini, Elisa Giovannetti
Squamous cell lung carcinoma (SCC) accounts for 30% of patients with NSCLC and to date, no molecular targeted agents are approved for this type of tumor. However, recent studies have revealed several oncogenic mutations in SCC patients, including an alteration of the PI3K/AKT pathway, i.e. PI3K point mutations and amplification, AKT mutations and loss or reduced PTEN expression. Prompted by our observation of a correlation between PTEN loss and FAK phosphorylation in a cohort of patients with stage IV SCC, we evaluated the relevance of PTEN loss in cancer progression as well as the efficacy of a new combined treatment with the pan PI3K inhibitor buparlisip and the FAK inhibitor defactinib...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28589081/inhibitory-effect-of-1-8-cineol-on-%C3%AE-catenin-regulation-wnt11-expression-and-cellular-progression-in-hnscc
#4
Anna Roettger, Karl-Ludwig Bruchhage, Maren Drenckhan, Kirsten Ploetze-Martin, Ralph Pries, Barbara Wollenberg
OBJECTIVES: Head and neck squamous cell carcinoma (HNSCC) is one of the most common tumors worldwide. The high mortality rates have not changed during the last three decades, and thus there is an enormous need for innovative therapy approaches. Several recent studies suggest an important role of the Wnt/β-catenin signaling pathway in the tumorigenesis of HNSCC. We analyzed the effect of the monoterpene oxide 1,8-cineol on the regulation of the Wnt/β-catenin signaling pathway and the cellular progression of different HNSCC cell lines...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28588029/tgf-%C3%AE-inhibits-il-7-induced-proliferation-in-memory-but-not-naive-human-cd4-t-cells
#5
Thao P Nguyen, Scott F Sieg
TGF-β is a potent suppressor of T cell activation and expansion. Although the antiproliferative effects of TGF-β are well characterized in TCR-activated cells, the effects of TGF-β on T cell proliferation driven by homeostatic cytokines, such as IL-7, are poorly defined. In the current study, we found that TGF-β inhibits IL-7-induced proliferation in memory, but not in naive human CD4(+) T cells. TGF-β impaired c-myc induction in all CD4(+) T cell maturation subsets, although the impairment was less sustained in naive CD4(+) T cells...
June 6, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28584168/palmitate-and-oleate-exert-differential-effects-on-insulin-signalling-and-glucose-uptake-in-human-skeletal-muscle-cells
#6
Selina Mäkinen, Hoang Yen Nguyen, Paulina Skrobuk, Heikki A Koistinen
Saturated fatty acids are implicated in the development of insulin resistance, whereas unsaturated fatty acids may have a protective effect on metabolism. We tested in primary human myotubes if insulin resistance induced by saturated fatty acid palmitate can be ameliorated by concomitant exposure to unsaturated fatty acid oleate. Primary human myotubes were pre-treated with palmitate, oleate, or their combination for 12 h. Glucose uptake was determined by intracellular accumulation of [3H]-2-Deoxy-D-glucose, insulin signalling and activation of endoplasmic reticulum (ER) stress by western blotting, and mitochondrial reactive oxygen species (ROS) production by fluorescent dye MitoSOX™...
June 5, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28579452/the-role-of-macf1-in-nervous-system-development-and-maintenance
#7
REVIEW
Jeffrey J Moffat, Minhan Ka, Eui-Man Jung, Amanda L Smith, Woo-Yang Kim
Microtubule-actin crosslinking factor 1 (MACF1), also known as actin crosslinking factor 7 (ACF7), is essential for proper modulation of actin and microtubule cytoskeletal networks. Most MACF1 isoforms are expressed broadly in the body, but some are exclusively found in the nervous system. Consequentially, MACF1 is integrally involved in multiple neural processes during development and in adulthood, including neurite outgrowth and neuronal migration. Furthermore, MACF1 participates in several signaling pathways, including the Wnt/β-catenin and GSK-3 signaling pathways, which regulate key cellular processes, such as proliferation and cell migration...
June 1, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28579298/regulation-of-gsk-3-activity-by-curcumin-berberine-and-resveratrol-potential-effects-on-multiple-diseases
#8
REVIEW
James A McCubrey, Kvin Lertpiriyapong, Linda S Steelman, Steve L Abrams, Lucio Cocco, Stefano Ratti, Alberto M Martelli, Saverio Candido, Massimo Libra, Giuseppe Montalto, Melchiorre Cervello, Agnieszka Gizak, Dariusz Rakus
Natural products or nutraceuticals promote anti-aging, anti-cancer and other health-enhancing effects. A key target of the effects of natural products may be the regulation of the PI3K/PTEN/Akt/mTORC1/GSK-3 pathway. This review will focus on the effects of curcumin (CUR), berberine (BBR) and resveratrol (RES), on the PI3K/PTEN/Akt/mTORC1/GSK-3 pathway, with a special focus on GSK-3. These natural products may regulate the pathway by multiple mechanisms including: reactive oxygen species (ROS), cytokine receptors, mirco-RNAs (miRs) and many others...
May 26, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28575066/combined-application-of-arsenic-trioxide-and-lithium-chloride-augments-viability-reduction-and-apoptosis-induction-in-human-rhabdomyosarcoma-cell-lines
#9
Sabine B Schleicher, Julian J Zaborski, Rosa Riester, Natascha Zenkner, Rupert Handgretinger, Torsten Kluba, Frank Traub, Karen A Boehme
Rhabdomyosarcomas (RMS) are the most prevalent soft tissue sarcomas affecting children and adolescents. Despite intensive treatment consisting of multimodal chemotherapy and surgery RMS patients diagnosed with metastatic disease expect long term survival rates of only 20%. Often multidrug resistance arises upon initial response emphasizing the need for new therapeutic drugs to improve treatment efficiency. Previously, we demonstrated the efficacy of the FDA approved drug arsenic trioxide (ATO) specifically inhibiting viability and clonal growth as well as inducing cell death in human RMS cell lines of different subtypes...
2017: PloS One
https://www.readbyqxmd.com/read/28549531/targeting-the-akt-gsk-3-bcl-2-axis-in-acute-myeloid-leukemia
#10
REVIEW
Maria Rosaria Ricciardi, Simone Mirabilii, Roberto Licchetta, Monica Piedimonte, Agostino Tafuri
Over the last few decades, there has been significant progress in the understanding of the pathogenetic mechanisms of the Acute Myeloid Leukemia (AML). However, despite important advances in elucidating molecular mechanisms, the treatment of AML has not improved significantly, remaining anchored at the standard chemotherapy regimen "3 + 7", with the prognosis of patients remaining severe, especially for the elderly and for those not eligible for transplant procedures. The biological and clinical heterogeneity of AML represents the major obstacle that hinders the improvement of prognosis and the identification of new effective therapeutic approaches...
May 19, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28522250/ppargamma-agonists-rescue-increased-phosphorylation-of-fgf14-at-s226-in-the-tg2576-mouse-model-of-alzheimer-s-disease
#11
Wei-Chun J Hsu, Norelle C Wildburger, Sigmund J Haidacher, Miroslav N Nenov, Oluwarotimi Folorunso, Aditya K Singh, Brent C Chesson, Whitney F Franklin, Ibdanelo Cortez, Rovshan G Sadygov, Kelly T Dineley, Jay S Rudra, Giulio Taglialatela, Cheryl F Lichti, Larry Denner, Fernanda Laezza
BACKGROUND: Cognitive impairment in humans with Alzheimer's disease (AD) and in animal models of Aβ-pathology can be ameliorated by treatments with the nuclear receptor peroxisome proliferator-activated receptor-gamma (PPARγ) agonists, such as rosiglitazone (RSG). Previously, we demonstrated that in the Tg2576 animal model of AD, RSG treatment rescued cognitive deficits and reduced aberrant activity of granule neurons in the dentate gyrus (DG), an area critical for memory formation...
May 15, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28508421/subversion-of-host-kinases-a-key-network-in-cellular-signaling-hijacked-by-helicobacter-pylori-caga
#12
REVIEW
Nicole Tegtmeyer, Matthias Neddermann, Carmen Isabell Asche, Steffen Backert
Helicobacter pylori is a paradigm of persistent pathogens and major risk factor for developing severe diseases including adenocarcinoma in the human stomach. An important bacterial factor linked to gastric disease progression is the cag pathogenicity island-encoded type-IV secretion system (T4SS) effector protein CagA. Translocated CagA undergoes tyrosine phosphorylation at EPIYA-motifs and then activates or inactivates multiple host signaling proteins in a phosphorylation-dependent and phosphorylation-independent fashion...
May 15, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28506533/schwann-cell-precursors-from-human-pluripotent-stem-cells-as-a-potential-therapeutic-target-for-myelin-repair
#13
Han-Seop Kim, Jungwoon Lee, Da Yong Lee, Young-Dae Kim, Jae Yun Kim, Hyung Jin Lim, Sungmin Lim, Yee Sook Cho
Schwann cells play a crucial role in successful nerve repair and regeneration by supporting both axonal growth and myelination. However, the sources of human Schwann cells are limited both for studies of Schwann cell development and biology and for the development of treatments for Schwann cell-associated diseases. Here, we provide a rapid and scalable method to produce self-renewing Schwann cell precursors (SCPs) from human pluripotent stem cells (hPSCs), using combined sequential treatment with inhibitors of the TGF-β and GSK-3 signaling pathways, and with neuregulin-1 for 18 days under chemically defined conditions...
June 6, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28501501/anti-tumor-effects-of-differentiation-inducing-factor-1-in-malignant-melanoma-gsk-3-mediated-inhibition-of-cell-proliferation-and-gsk-3-independent-suppression-of-cell-migration-and-invasion
#14
Masaki Arioka, Fumi Takahashi-Yanaga, Momoko Kubo, Kazunobu Igawa, Katsuhiko Tomooka, Toshiyuki Sasaguri
Differentiation-inducing factor-1 (DIF-1) isolated from Dictyostelium discoideum strongly inhibits the proliferation of various mammalian cells through the activation of glycogen synthase kinase-3 (GSK-3). To evaluate DIF-1 as a novel anti-cancer agent for malignant melanoma, we examined whether DIF-1 has anti-proliferative, anti-migratory, and anti-invasive effects on melanoma cells using in vitro and in vivo systems. DIF-1 reduced the expression levels of cyclin D1 and c-Myc by facilitating their degradation via GSK-3 in mouse (B16BL6) and human (A2058) malignant melanoma cells, and thereby strongly inhibited their proliferation...
May 10, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28499784/gsk-3-as-a-novel-prognostic-indicator-in-leukemia
#15
REVIEW
Peter P Ruvolo
While leukemias represent a diverse set of diseases with malignant cells derived from myeloid or lymphoid origin, a common feature is the dysregulation of signal transduction pathways that influence leukemogeneisis, promote drug resistance, and favor leukemia stem cells. Mutations in PI3K, PTEN, RAS, or other upstream regulators can activate the AKT kinase which has central roles in supporting cell proliferation and survival. A major target of AKT is Glycogen Synthase Kinase 3 (GSK3). GSK3 has two isoforms (alpha and beta) that were studied as regulators of metabolism but emerged as central players in cancer in the early 1990s...
May 8, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28486555/autophagy-is-a-signature-of-a-signaling-network-that-maintains-hematopoietic-stem-cells
#16
Michelle Nguyen-McCarty, Peter S Klein
Hematopoietic stem cells (HSCs) are able to self-renew and to differentiate into all blood cells. HSCs reside in a low-perfusion niche and depend on local signals to survive and to maintain the capacity for self-renewal. HSCs removed from the niche are unable to survive without addition of hematopoietic cytokines and rapidly lose their ability to self-renew. We reported previously that inhibition of both GSK-3 and mTORC1 is essential to maintain long-term HSCs ex vivo. Although Wnt/β-catenin signaling downstream of GSK-3 is required for this response, the downstream effectors of mTORC1 remain undefined...
2017: PloS One
https://www.readbyqxmd.com/read/28485573/radiosynthesis-and-in-vivo-evaluation-of-11-c-a1070722-a-high-affinity-gsk-3-pet-tracer-in-primate-brain
#17
Jaya Prabhakaran, Francesca Zanderigo, Kiran Kumar Solingapuram Sai, Harry Rubin-Falcone, Matthew J Jorgensen, Jay R Kaplan, Akiva Mintz, J John Mann, J S Dileep Kumar
Dysfunction of glycogen synthase kinase 3 (GSK-3) is implicated in the etiology of Alzheimer's disease, Parkinson's disease, diabetes, pain, and cancer. A radiotracer for functional positron emission tomography (PET) imaging could be used to study the kinase in brain disorders and to facilitate the development of small molecule inhibitors of GSK-3 for treatment. At present, there is no target-specific or validated PET tracer available for the in vivo monitoring of GSK-3. We radiolabeled the small molecule inhibitor [(11)C]1-(7-methoxy- quinolin-4-yl)-3-(6-(trifluoromethyl)pyridin-2-yl)urea ([(11)C]A1070722) with high affinity to GSK-3 (Ki = 0...
May 17, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28444510/starvation-signals-in-yeast-are-integrated-to-coordinate-metabolic-reprogramming-and-stress-response-to-ensure-longevity
#18
REVIEW
Nianshu Zhang, Lu Cao
Studies on replicative and chronological aging in Saccharomyces cerevisiae have greatly advanced our understanding of how longevity is regulated in all eukaryotes. Chronological lifespan (CLS) of yeast is defined as the age-dependent viability of non-dividing cell populations. A number of nutrient sensing and signal transduction pathways (mainly TOR and PKA) have been shown to regulate CLS, yet it is poorly understood how the starvation signals transduced via these pathways lead to CLS extension. Using reporters whose expressions are induced by glucose starvation, we have screened the majority of the 'signaling' mutants in the yeast genome and identified many genes that are necessary for stress response...
April 25, 2017: Current Genetics
https://www.readbyqxmd.com/read/28419994/degradation-of-mcl-1-through-gsk-3%C3%AE-activation-regulates-apoptosis-induced-by-bufalin-in-non-small-cell-lung-cancer-h1975-cells
#19
Xiao-Hong Kang, Jing-Hang Zhang, Qing-Qin Zhang, Yan-Hui Cui, Ying Wang, Wei-Zheng Kou, Zhan-Hui Miao, Ping Lu, Li-Fang Wang, Zhen-Ye Xu, Fei Cao
BACKGROUND/AIMS: Mcl-1, an anti-apoptotic Bcl-2 family member, is often overexpressed in non-small cell lung cancer (NSCLC). Bufalin has been reported to induce apoptosis in various tumor cells. However, there is no report showing that bufalin could downregulate Mcl-1 expression in NSCLC. METHODS: Cell proliferation was analyzed by cell counting kit-8 (CCK-8) assay in H1975 cells. Cell apoptosis was detected by flow cytometry. Mcl-1 mRNA was detected by RT-PCR. The expression of apoptosis-associated proteins in H1975 cells was detected by western blotting...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28418865/anti-helminthic-niclosamide-inhibits-ras-driven-oncogenic-transformation-via-activation-of-gsk-3
#20
Sung Yong Ahn, Ji Hye Yang, Nam Hee Kim, Kyungro Lee, Yong Hoon Cha, Jun Seop Yun, Hee Eun Kang, Yoonmi Lee, Jiwon Choi, Hyun Sil Kim, Jong In Yook
Despite the importance of Ras oncogenes as a therapeutic target in human cancer, their 'undruggable' tertiary structures limit the effectiveness of anti-Ras drugs. Canonical Wnt signaling contributes to Ras activity by glycogen synthase kinase 3 (GSK-3)-dependent phosphorylation at the C-terminus and subsequent degradation. In the accompanying report, we show that the anti-helminthic niclosamide directly binds to GSK-3 and inhibits Axin functions in colon cancer cells, with reversion of Snail-mediated epithelial-mesenchymal transition...
May 9, 2017: Oncotarget
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