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https://www.readbyqxmd.com/read/28433762/novel-viral-and-host-targets-to-cure-hepatitis-b
#1
REVIEW
Chunkyu Ko, Thomas Michler, Ulrike Protzer
Hepatitis B virus (HBV) infection is a global health threat with 240 million chronic carriers at high risk to develop hepatocellular carcinoma. Current antiviral treatment can efficiently control viral replication and reduce liver inflammation, but is still quite far from achieving a cure. Significant progress has been made in understanding the virus life cycle and virus-host interaction in the past few years. With identification of the HBV receptor, cell-culture infection systems have become available that allow drug screening and establishing a pipeline of potential antivirals targeting either viral or host factors...
April 20, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28433505/chemotherapy-induces-alternative-transcription-and-splicing-facts-and-hopes-for-cancer-treatment
#2
Charles A Lambert, Nancy Garbacki, Alain C Colige
Alternative promoter usage, alternative splicing and alternative cleavage/polyadenylation (referred here as to alternative transcription and splicing) are main instruments to diversify the transcriptome from a limited set of genes. There is a good deal of evidence that chemotherapeutic drugs affect these processes, but the therapeutic incidence of these effects is poorly documented. The scope of this study is to review the impact of chemotherapy on alternative transcription and splicing and to discuss potential implications in cancer therapy...
April 19, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28432594/microrna-transfer-between-bone-marrow-adipose-and-multiple-myeloma-cells
#3
REVIEW
Luna Soley, Carolyne Falank, Michaela R Reagan
PURPOSE OF REVIEW: Multiple myeloma remains an incurable disease, largely due to the tumor-supportive role of the bone marrow microenvironment. Bone marrow adipose tissue (BMAT) is one component of the fertile microenvironment which is believed to contribute to myeloma progression and drug resistance, as well as participate in a vicious cycle of osteolysis and tumor growth. RECENT FINDINGS: MicroRNAs (miRNAs) have recently emerged as instrumental regulators of cellular processes that enable the development and dissemination of cancer...
April 21, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28431155/motoring-through-the-role-of-kinesin-superfamily-proteins-in-female-meiosis
#4
Nicole J Camlin, Eileen A McLaughlin, Janet E Holt
BACKGROUND: The kinesin motor protein family consists of 14 distinct subclasses and 45 kinesin proteins in humans. A large number of these proteins, or their orthologues, have been shown to possess essential function(s) in both the mitotic and the meiotic cell cycle. Kinesins have important roles in chromosome separation, microtubule dynamics, spindle formation, cytokinesis and cell cycle progression. This article contains a review of the literature with respect to the role of kinesin motor proteins in female meiosis in model species...
April 18, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28430948/functional-relevance-of-water-and-glycerol-channels-in-saccharomyces-cerevisiae
#5
Farzana Sabir, Maria C Loureiro-Dias, Graça Soveral, Catarina Prista
Our understanding of the functional relevance of orthodox aquaporins and aquaglyceroporins in Saccharomyces cerevisiae is essentially based on phenotypic variations obtained by expression/overexpression/deletion of these MIPs in selected strains. These water/glycerol channels are considered crucial during various life-cycle phases, such as sporulation and mating and in some life-processes like rapid freeze-thaw tolerance, osmoregulation and phenomena associated with cell surface. Despite their putative functional roles not only as channels but also as sensors, their underlying mechanisms and their regulation are still poorly understood...
April 19, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28429876/iodine-131-meta-iodobenzylguanidine-therapy-for-patients-with-newly-diagnosed-high-risk-neuroblastoma
#6
REVIEW
Kathelijne Cjm Kraal, Elvira C van Dalen, Godelieve Am Tytgat, Berthe Lf Van Eck-Smit
BACKGROUND: Patients with newly diagnosed high-risk (HR) neuroblastoma (NBL) still have a poor outcome, despite multi-modality intensive therapy. This poor outcome necessitates the search for new therapies, such as treatment with (131)I-meta-iodobenzylguanidine ((131)I-MIBG). OBJECTIVES: To assess the efficacy and adverse effects of (131)I-MIBG therapy in patients with newly diagnosed HR NBL. SEARCH METHODS: We searched the following electronic databases: the Cochrane Central Register of Controlled Trials (CENTRAL; the Cochrane Library 2016, Issue 3), MEDLINE (PubMed) (1945 to 25 April 2016) and Embase (Ovid) (1980 to 25 April 2016)...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28429347/sumoylation-in-cardiac-disorders-a-review
#7
X-C Li, Y Zeng, R-R Sun, M Liu, S Chen, P-Y Zhang
SUMOylation regulates diverse cellular processes including transcription, cell cycle, protein stability, and apoptosis. A recent research has now revealed the role of SUMO1 in cardiac disorders. Studies have evidenced that failing heart induces SUMO2/3 conjugation. Moreover, increased SUMO2/3- dependent modification has been observed to result in congestive heart disease such as cardiac hypertrophy by promoting cardiac cell death. Also, few recent studies have confirmed the role of SUMOylation in cardiac protein degradation...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28427008/lateral-hypothalamic-circuits-for-sleep-wake-control
#8
REVIEW
Takayuki Yamashita, Akihiro Yamanaka
The lateral hypothalamic area (LHA) of the diencephalon is crucially involved in controlling instinctive behavior such as sleep-wake cycle and feeding behavior. LHA is a heterogeneous structure that contains spatially intermingled, genetically distinct cell populations. Among LHA neurons, orexin/hypocretin (OX) neuron is the key cell type that promotes waking, and specific loss of OX neurons results in narcolepsy. Melanin-concentrating hormone (MCH) containing neurons are known to be active during rapid eye movement (REM) sleep and stimulation of these neurons promotes REM sleep...
April 17, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28426847/safety-and-efficacy-of-bilateral-submental-cryolipolysis-with-quantified-3-dimensional-imaging-of-fat-reduction-and-skin-tightening
#9
Eric F Bernstein, Jason D Bloom
Importance: Cryolipolysis is a popular, well-tolerated nonsurgical procedure that uses controlled cooling to selectively destroy fat cells. Central submental cryolipolysis has been reported to be safe and effective, but many patients would benefit from extending this treatment over the entire submental region. Objective: To investigate the safety and efficacy of cryolipolysis for reduction of lateral and central submental fat. Design, Setting, and Participants: The study population consisted of 14 participants who were treated from January 22 to June 30, 2016, in the lateral and central submental area to reduce unwanted subcutaneous fat...
April 20, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28426655/glycosome-biogenesis-in-trypanosomes-and-the-de-novo-dilemma
#10
REVIEW
Sarah Bauer, Meredith T Morris
Trypanosomatid parasites, including Trypanosoma and Leishmania, are the causative agents of lethal diseases threatening millions of people around the world. These organisms compartmentalize glycolysis in essential, specialized peroxisomes called glycosomes. Peroxisome proliferation can occur through growth and division of existing organelles and de novo biogenesis from the endoplasmic reticulum. The level that each pathway contributes is debated. Current evidence supports the concerted contribution of both mechanisms in an equilibrium that can vary depending on environmental conditions and metabolic requirements of the cell...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28425074/lincrna-p21-function-and-mechanism-in-cancer
#11
REVIEW
Shaoyun Chen, Hairong Liang, Hui Yang, Kairu Zhou, Longmei Xu, Jiaxian Liu, Bei Lai, Li Song, Hao Luo, Jianming Peng, Zhidong Liu, Yongmei Xiao, Wen Chen, Huanwen Tang
In view of the rapid development of gene chips and high-throughput sequencing technology, noncoding RNAs (ncRNas) form a high percentage of the mammalian genome. Two major subgroups of ncRNAs that have been identified are the long ncRNAs (lncRNas) and the microRNAs. A number of studies in the past few years have showed crucial functions for lncRNas in cancer. LincRNa-p21 as a p53-dependent transcriptional target gene and a potential diagnostic marker is involved in proliferation, cell cycle, metabolism and reprogramming...
May 2017: Medical Oncology
https://www.readbyqxmd.com/read/28424988/overcoming-chemotherapy-drug-resistance-by-targeting-inhibitors-of-apoptosis-proteins-iaps
#12
REVIEW
Rama Rathore, Jennifer E McCallum, Elizabeth Varghese, Ana-Maria Florea, Dietrich Büsselberg
Inhibitors of apoptosis (IAPs) are a family of proteins that play a significant role in the control of programmed cell death (PCD). PCD is essential to maintain healthy cell turnover within tissue but also to fight disease or infection. Uninhibited, IAPs can suppress apoptosis and promote cell cycle progression. Therefore, it is unsurprising that cancer cells demonstrate significantly elevated expression levels of IAPs, resulting in improved cell survival, enhanced tumor growth and subsequent metastasis. Therapies to target IAPs in cancer has garnered substantial scientific interest and as resistance to anti-cancer agents becomes more prevalent, targeting IAPs has become an increasingly attractive strategy to re-sensitize cancer cells to chemotherapies, antibody based-therapies and TRAIL therapy...
April 19, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28424375/mitochondria-a-central-target-for-sex-differences-in-pathologies
#13
REVIEW
Renée Ventura-Clapier, Maryline Moulin, Jérôme Piquereau, Christophe Lemaire, Mathias Mericskay, Vladimir Veksler, Anne Garnier
It is increasingly acknowledged that a sex and gender specificity affects the occurrence, development, and consequence of a plethora of pathologies. Mitochondria are considered as the powerhouse of the cell because they produce the majority of energy-rich phosphate bonds in the form of adenosine tri-phosphate (ATP) but they also participate in many other functions like steroid hormone synthesis, reactive oxygen species (ROS) production, ionic regulation, and cell death. Adequate cellular energy supply and survival depend on mitochondrial life cycle, a process involving mitochondrial biogenesis, dynamics, and quality control via mitophagy...
May 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28422055/c-myc-making-liver-sick-role-of-c-myc-in-hepatic-cell-function-homeostasis-and-disease
#14
REVIEW
Kang Zheng, Francisco Javier Cubero, Yulia A Nevzorova
Over 35 years ago, c-MYC, a highly pleiotropic transcription factor that regulates hepatic cell function, was identified. In recent years, a considerable increment in the number of publications has significantly shifted the way that the c-MYC function is perceived. Overexpression of c-MYC alters a wide range of roles including cell proliferation, growth, metabolism, DNA replication, cell cycle progression, cell adhesion and differentiation. The purpose of this review is to broaden the understanding of the general functions of c-MYC, to focus on c-MYC-driven pathogenesis in the liver, explain its mode of action under basal conditions and during disease, and discuss efforts to target c-MYC as a plausible therapy for liver disease...
April 19, 2017: Genes
https://www.readbyqxmd.com/read/28421048/functional-information-stored-in-the-conserved-structural-rna-domains-of-flavivirus-genomes
#15
REVIEW
Alba Fernández-Sanlés, Pablo Ríos-Marco, Cristina Romero-López, Alfredo Berzal-Herranz
The genus Flavivirus comprises a large number of small, positive-sense single-stranded, RNA viruses able to replicate in the cytoplasm of certain arthropod and/or vertebrate host cells. The genus, which has some 70 member species, includes a number of emerging and re-emerging pathogens responsible for outbreaks of human disease around the world, such as the West Nile, dengue, Zika, yellow fever, Japanese encephalitis, St. Louis encephalitis, and tick-borne encephalitis viruses. Like other RNA viruses, flaviviruses have a compact RNA genome that efficiently stores all the information required for the completion of the infectious cycle...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28420950/metallothionein-copper-and-alpha-synuclein-in-alpha-synucleinopathies
#16
REVIEW
Yuho Okita, Alexandre N Rcom-H'cheo-Gauthier, Michael Goulding, Roger S Chung, Peter Faller, Dean L Pountney
Metallothioneins (MTs) are proteins that function by metal exchange to regulate the bioavailability of metals, such as zinc and copper. Copper functions in the brain to regulate mitochondria, neurotransmitter production, and cell signaling. Inappropriate copper binding can result in loss of protein function and Cu(I)/(II) redox cycling can generate reactive oxygen species. Copper accumulates in the brain with aging and has been shown to bind alpha-synuclein and initiate its aggregation, the primary aetiological factor in Parkinson's disease (PD), and other alpha-synucleinopathies...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28420609/molecule-mechanism-for-regulating-stomatal-development-in-plants
#17
Chen Qingyun, Li Youzhi, Fan Xianwei
Stomata are small adjustable pores on the surface (epidermis) of land plants that act as a main conduit for gas exchange. They not only play an essential role in photosynthesis of green plants but also exert an important influence on the global carbon and water cycle. There are great differences between monocots and dicots in distribution and morphological structure of the stomata, affecting the species-specific regulation of stomatal development. In this review, we summarize the molecular regulation networks associated with stomatal precursor cell fate determination and the epigenetic mechanisms on regulation of polar cell division...
April 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28420416/emerging-therapies-for-acute-myeloid-leukemia
#18
REVIEW
Caner Saygin, Hetty E Carraway
Acute myeloid leukemia (AML) is characterized by clinical and biological heterogeneity. Despite the advances in our understanding of its pathobiology, the chemotherapy-directed management has remained largely unchanged in the past 40 years. However, various novel agents have demonstrated clinical activity, either as single agents (e.g., isocitrate dehydrogenase (IDH) inhibitors, vadastuximab) or in combination with standard induction/consolidation at diagnosis and with salvage regimens at relapse. The classes of agents described in this review include novel cytotoxic chemotherapies (CPX-351 and vosaroxin), epigenetic modifiers (guadecitabine, IDH inhibitors, histone deacetylase (HDAC) inhibitors, bromodomain and extraterminal (BET) inhibitors), FMS-like tyrosine kinase receptor 3 (FLT3) inhibitors, and antibody-drug conjugates (vadastuximab), as well as cell cycle inhibitors (volasertib), B-cell lymphoma 2 (BCL-2) inhibitors, and aminopeptidase inhibitors...
April 18, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28417908/cytokinesis-failure-leading-to-chromosome-instability-in-v-src-induced-oncogenesis
#19
REVIEW
Yuji Nakayama, Shuhei Soeda, Masayoshi Ikeuchi, Keiko Kakae, Naoto Yamaguchi
v-Src, an oncogene found in Rous sarcoma virus, is a constitutively active variant of c-Src. Activation of Src is observed frequently in colorectal and breast cancers, and is critical in tumor progression through multiple processes. However, in some experimental conditions, v-Src causes growth suppression and apoptosis. In this review, we highlight recent progress in our understanding of cytokinesis failure and the attenuation of the tetraploidy checkpoint in v-Src-expressing cells. v-Src induces cell cycle changes-such as the accumulation of the 4N cell population-and increases the number of binucleated cells, which is accompanied by an excess number of centrosomes...
April 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28415805/regulatory-functional-territory-of-plk-1-and-their-substrates-beyond-mitosis
#20
REVIEW
Shiv Kumar, Garima Sharma, Chiranjib Chakraborty, Ashish Ranjan Sharma, Jaebong Kim
Polo-like kinase 1 (PLK-1) is a well-known (Ser/Thr) mitotic protein kinase and is considered as a proto-oncogene. As hyper-activation of PLK-1 is broadly associated with poor prognosis and cancer progression, it is one of the most extensively studied mitotic kinases. During mitosis, PLK-1 regulates various cell cycle events, such as spindle pole maturation, chromosome segregation and cytokinesis. However, studies have demonstrated that the role of PLK-1 is not only restricted to mitosis, but PLK-1 can also regulate other vital events beyond mitosis, including transcription, translation, ciliogenesis, checkpoint adaptation and recovery, apoptosis, chromosomes dynamics etc...
March 16, 2017: Oncotarget
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