keyword
MENU ▼
Read by QxMD icon Read
search

cold shock

keyword
https://www.readbyqxmd.com/read/28714602/genome-wide%C3%A2-identification-and-characterization%C3%A2-of%C3%A2-hsp-gene-superfamily-in-whitefly-bemisia-tabaci-and-expression-profiling%C3%A2-analysis%C3%A2-under-temperature-stress
#1
Xin-Ru Wang, Chao Wang, Fei-Xue Ban, Dan-Tong Zhu, Shu-Sheng Liu, Xiao-Wei Wang
Heat shock proteins (Hsp) are essential molecular chaperones that play important roles in the stress stimulation of insects. Bemisia tabaci, a phloem feeder and invasive species, can cause extensive crop damage through direct feeding and transmission of plant viruses. Here we employed comprehensive genomics approaches to identity HSP superfamily members in Middle East Asia Minor 1 whitefly genome. In total, we identified 26 Hsp genes, including 3 Hsp90, 17 Hsp70, 1 Hsp60 and 5 sHSP (small heat shock protein, sHSP) genes...
July 17, 2017: Insect Science
https://www.readbyqxmd.com/read/28714514/nuclear-expression-of-y-box-binding-1-is-important-for-resistance-to-chemotherapy-including-gemcitabine-in-tp53-mutated-bladder-cancer
#2
Takahisa Yamashita, Morihiro Higashi, Shuji Momose, Makoto Morozumi, Jun-Ichi Tamaru
The development and acquisition of multiple drug resistance in cancer cells remain a major obstacle in the treatment of bladder cancer. Nuclear translocation of Y box binding-1 (YB-1), which is a member of a family of DNA-binding proteins that contain a cold shock domain, plays a significant role in the acquisition of drug resistance by upregulating expression of the multidrug resistance-1 (MDR-1) gene product, p-glycoprotein. The tumor suppressor protein p53 is thought to be essential for nuclear translocation of YB-1...
August 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28709648/deficiency-in-cold-inducible-rna-binding-protein-attenuates-acute-respiratory-distress-syndrome-induced-by-intestinal-ischemia-reperfusion
#3
Cindy Cen, Joseph McGinn, Monowar Aziz, Weng-Lang Yang, Joaquin Cagliani, Jeffrey M Nicastro, Gene F Coppa, Ping Wang
BACKGROUND: Intestinal ischemia-reperfusion can occur in shock and mesenteric occlusive diseases, causing significant morbidity and mortality. Aside from local injury, intestinal ischemia-reperfusion can result in remote organ damage, particularly in the lungs. Cold-inducible RNA-binding protein (CIRP) was identified as a novel inflammatory mediator. We hypothesized that a deficiency in CIRP would protect the lungs during intestinal ischemia-reperfusion injury. METHODS: Intestinal ischemia was induced in adult male C57BL/6 wild-type and CIRP knock-out (CIRP(-/-)) mice via clamping of the superior mesenteric artery for 60 minutes...
July 11, 2017: Surgery
https://www.readbyqxmd.com/read/28694447/impacts-of-early-life-stress-on-the-methylome-and-transcriptome-of-atlantic-salmon
#4
Hooman K Moghadam, Hanne Johnsen, Nicholas Robinson, Øivind Andersen, Even H Jørgensen, Helge K Johnsen, Vegar J Bæhr, Helge Tveiten
Exposure to environmental stressors during early-life stages can change the rate and timing of various developmental processes. Epigenetic marks affecting transcriptional regulation can be altered by such environmental stimuli. To assess how stress might affect the methylome and transcriptome in salmon, fish were treated using cold-shock and air-exposure from the eye-stage until start-feeding. The fish were either stressed prior to hatching (E), post-hatching (PH), pre- and post-hatching (EPH) or not stressed (CO)...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28689711/differential-expression-of-stress-candidate-genes-for-thermal-tolerance-in-the-sea-urchin-loxechinus-albus
#5
Jonathan Vergara-Amado, Andrea X Silva, Catalina Manzi, Roberto F Nespolo, Leyla Cárdenas
Marine ectotherms inhabiting intertidal and shallow subtidal environments are continuously exposed to diurnal tidal cycles and seasonal variability in temperature. These organisms have adaptive mechanisms to maintain cellular homeostasis, irrespective of thermal environmental variation. In this study, we describe the molecular responses to thermal stress in the edible sea urchin Loxechinus albus. In particular, we determined the differential expression of a set of molecular markers that have been identified as targets of stress-related responses...
August 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28687981/characteristics-and-expression-of-genes-encoding-two-small-heat-shock-protein-genes-lacking-introns-from-chilo-suppressalis
#6
Dan-Dan Pan, Ming-Xing Lu, Qiu-Yu Li, Yu-Zhou Du
Small heat shock proteins (sHSPs) constitute a large, diverse, and functionally uncharacterized family of heat shock proteins. To gain insight regarding the function of sHSPs in insects, we identified genes encoding two sHSPs, Cshsp22.9b and Cshsp24.3, from the rice pest Chilo suppressalis. The cDNAs of Cshsp22.9b and Cshsp24.3 encoded proteins of 206 and 216 amino acids with isoelectric points of 5.79 and 9.28, respectively. Further characterization indicated that both Cshsp22.9b and Cshsp24.3 lacked introns...
July 7, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28677014/a-mild-cold-stress-that-increases-resistance-to-heat-lowers-foxo-translocation-in-drosophila-melanogaster
#7
Cédric Polesello, Eric Le Bourg
Previous studies have shown that subjecting Drosophila melanogaster flies to a mild stress at young or middle age can increase lifespan and resistance to severe stresses throughout life and that the NF-κB-like transcription factor DIF, the 70 kDa heat-shock proteins, and the Drosophila Forkhead box class O (dFOXO) transcription factor could explain some of these effects. The present study showed that two dFOXO mutants do not survive longer heat if previously subjected to a mild cold stress, contrarily to wild-type flies...
July 4, 2017: Biogerontology
https://www.readbyqxmd.com/read/28676379/effects-of-nutrient-and-water-restriction-on-thermal-tolerance-a-test-of-mechanisms-and-hypotheses
#8
Katherine A Mitchell, Leigh Boardman, Susana Clusella-Trullas, John S Terblanche
Nutritional deprivation or desiccation can influence thermal tolerance by impacting the insects' ability to evaporatively cool, maintain cell membrane integrity and conduct protective or repair processes. Recovery from chilling is also linked to the re-establishment of iono- and osmo-regulatory homeostasis. Here, using Mediterranean fruit fly (Ceratitis capitata, Diptera: Tephritidae), we manipulated water and nutrient availability to test the mechanistic expectation that changes in whole organism lipid and water content can elicit variation in cold or heat tolerance (scored as chill coma recovery time and heat knockdown time)...
July 1, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28668777/translating-divergent-environmental-stresses-into-a-common-proteome-response-through-the-histidine-kinase-33-hik33-in-a-model-cyanobacterium
#9
Haitao Ge, Longfa Fang, Xiahe Huang, Jinlong Wang, Weiyang Chen, Ye Liu, Yuanya Zhang, Xiaorong Wang, Wu Xu, Qingfang He, Yingchun Wang
The histidine kinase Hik33 plays important roles in mediating cyanobacterial response to divergent types of abiotic stresses including cold, salt, high light (HL), and osmotic stresses. However, how these functions are regulated by Hik33 remains to be addressed. Using a hik33-deficient strain (Δhik33) of Synechocystis sp. PCC 6803 (Synechocystis) and quantitative proteomics, we found that Hik33 depletion induces differential protein expression highly like that induced by divergent types of stresses. This typically includes downregulation of proteins in photosynthesis and carbon assimilation that are necessary for cell propagation, and upregulation of heat shock proteins, chaperons, and proteases that are important for cell survival...
July 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28659870/the-biogeographic-pattern-of-microbial-functional-genes-along-an-altitudinal-gradient-of-the-tibetan-pasture
#10
Qi Qi, Mengxin Zhao, Shiping Wang, Xingyu Ma, Yuxuan Wang, Ying Gao, Qiaoyan Lin, Xiangzhen Li, Baohua Gu, Guoxue Li, Jizhong Zhou, Yunfeng Yang
As the highest place of the world, the Tibetan plateau is a fragile ecosystem. Given the importance of microbial communities in driving soil nutrient cycling, it is of interest to document the microbial biogeographic pattern here. We adopted a microarray-based tool named GeoChip 4.0 to investigate grassland microbial functional genes along an elevation gradient from 3200 to 3800 m above sea level open to free grazing by local herdsmen and wild animals. Interestingly, microbial functional diversities increase with elevation, so does the relative abundances of genes associated with carbon degradation, nitrogen cycling, methane production, cold shock and oxygen limitation...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28655334/growth-dependent-activity-of-the-cold-shock-cspa-promoter%C3%A2-%C3%A2-5-utr-and-production-of-the-protein-cspa-in-staphylococcus-aureus-newman
#11
Chandana K Uppalapati, Kimberley D Gutierrez, Gina Buss-Valley, Sam Katzif
BACKGROUND: Research involving the cold shock gene cspA of the medically important bacterium Staphylococcus aureus is steadily increasing as the relationships between the activity of this gene at 37 °C and a spectrum of virulence factors (e.g., biofilm formation, capsule production) as well as stress-related genes (e.g., alkaline shock protein, asp-23 and the alternative sigma factor, sigB) are distinguished. Fundamental to each of these discoveries is defining the regulation of cspA and the production of its protein product CspA...
June 27, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28650988/transcriptomic-analysis-to-uncover-genes-affecting-cold-resistance-in-the-chinese-honey-bee-apis-cerana-cerana
#12
Kai Xu, Qingsheng Niu, Huiting Zhao, Yali Du, Yusuo Jiang
The biological activity and geographical distribution of honey bees is strongly temperature-dependent, due to their ectothermic physiology. In China, the endemic Apis cerana cerana exhibits stronger cold hardiness than Western honey bees, making the former species important pollinators of winter-flowering plants. Although studies have examined behavioral and physiological mechanisms underlying cold resistance in bees, data are scarce regarding the exact molecular mechanisms. Here, we investigated gene expression in A...
2017: PloS One
https://www.readbyqxmd.com/read/28640690/a-new-layer-of-rrna-regulation-by-small-interference-rnas-and-the-nuclear-rnai-pathway
#13
Xufei Zhou, Xiangyang Chen, Yun Wang, Xuezhu Feng, Shouhong Guang
Ribosome biogenesis drives cell growth and proliferation, but mechanisms that modulate this process remain poorly understood. For a long time, small ribosomal RNA sequences have been widely treated as non-specific degradation products and neglected as garbage sequences. Recently, we identified a new class of antisense ribosomal siRNAs (risiRNAs) that downregulate pre-rRNA through the nuclear RNAi pathway in C. elegans. risiRNAs exhibit sequence characteristics similar to 22G RNA while complement to 18S and 26S rRNA...
June 22, 2017: RNA Biology
https://www.readbyqxmd.com/read/28640271/a-massive-dead-disk-galaxy-in-the-early-universe
#14
Sune Toft, Johannes Zabl, Johan Richard, Anna Gallazzi, Stefano Zibetti, Moire Prescott, Claudio Grillo, Allison W S Man, Nicholas Y Lee, Carlos Gómez-Guijarro, Mikkel Stockmann, Georgios Magdis, Charles L Steinhardt
At redshift z = 2, when the Universe was just three billion years old, half of the most massive galaxies were extremely compact and had already exhausted their fuel for star formation. It is believed that they were formed in intense nuclear starbursts and that they ultimately grew into the most massive local elliptical galaxies seen today, through mergers with minor companions, but validating this picture requires higher-resolution observations of their centres than is currently possible. Magnification from gravitational lensing offers an opportunity to resolve the inner regions of galaxies...
June 21, 2017: Nature
https://www.readbyqxmd.com/read/28631879/context-dependent-effects-of-cold-stress-on-behavioral-physiological-and-life-history-traits-of-the-red-flour-beetle
#15
Inon Scharf, Keren-Or Wertheimer, Joy Lim Xin, Tomer Gilad, Inna Goldenberg, Aziz Subach
Animals are exposed in nature to a variety of stressors. While stress is generally harmful, mild stress can also be beneficial and contribute to reproduction and survival. We studied the effect of five cold shock events vs. a single cold shock and a control group, representing three levels of stress (harsh, mild, and no stress), on behavioral, physiological, and life-history traits of the red flour beetle (Tribolium castaneum, Herbst 1797). Beetles exposed to harsh cold stress were less active than a control group: they moved less and failed more frequently to detect a food patch...
June 20, 2017: Insect Science
https://www.readbyqxmd.com/read/28630253/cold-induced-thermogenesis-and-inflammation-associated-cold-seeking-behavior-are-represented-by-different-dorsomedial-hypothalamic-sites-a-three-dimensional-functional-topography-study-in-conscious-rats
#16
Samuel P Wanner, M Camila Almeida, Yury P Shimansky, Daniela L Oliveira, Justin R Eales, Cândido C Coimbra, Andrej A Romanovsky
In the past, we showed that large electrolytic lesions of the dorsomedial hypothalamus (DMH) promoted hypothermia in cold-exposed restrained rats, but attenuated hypothermia in rats challenged with a high dose of bacterial lipopolysaccharide (LPS) in a thermogradient apparatus. The goal of this study was to identify the thermoeffector mechanisms and DMH representation of the two phenomena and, hence, understand how the same lesion could produce two opposite effects on body temperature. We found that the permissive effect of large electrolytic DMH lesions on cold-induced hypothermia was due to suppressed thermogenesis...
June 19, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28616176/adaptation-to-fluctuating-environments-in-a-selection-experiment-with-drosophila-melanogaster
#17
Olga I Kubrak, Sören Nylin, Thomas Flatt, Dick R Nässel, Olof Leimar
A fundamental question in life-history evolution is how organisms cope with fluctuating environments, including variation between stressful and benign conditions. For short-lived organisms, environments commonly vary between generations. Using a novel experimental design, we exposed wild-derived Drosophila melanogaster to three different selection regimes: one where generations alternated between starvation and benign conditions, and starvation was always preceded by early exposure to cold; another where starvation and benign conditions alternated in the same way, but cold shock sometimes preceded starvation and sometimes benign conditions; and a third where conditions were always benign...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28611217/rna-target-profiles-direct-the-discovery-of-virulence-functions-for-the-cold-shock-proteins-cspc-and-cspe
#18
Charlotte Michaux, Erik Holmqvist, Erin Vasicek, Malvika Sharan, Lars Barquist, Alexander J Westermann, John S Gunn, Jörg Vogel
The functions of many bacterial RNA-binding proteins remain obscure because of a lack of knowledge of their cellular ligands. Although well-studied cold-shock protein A (CspA) family members are induced and function at low temperature, others are highly expressed in infection-relevant conditions. Here, we have profiled transcripts bound in vivo by the CspA family members of Salmonella enterica serovar Typhimurium to link the constitutively expressed CspC and CspE proteins with virulence pathways. Phenotypic assays in vitro demonstrated a crucial role for these proteins in membrane stress, motility, and biofilm formation...
June 27, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28610763/inflammatory-cell-infiltration-and-resolution-of%C3%A2-kidney-inflammation-is-orchestrated-by-the-cold-shock-protein-y-box-binding-protein-1
#19
Anja Bernhardt, Alexander Fehr, Sabine Brandt, Saskia Jerchel, Tobias M Ballhause, Lars Philipsen, Saskia Stolze, Robert Geffers, Honglei Weng, Klaus-Dieter Fischer, Berend Isermann, Monika C Brunner-Weinzierl, Arvind Batra, Britta Siegmund, Cheng Zhu, Jonathan A Lindquist, Peter R Mertens
Tubular cells recruit monocytic cells in inflammatory tubulointerstitial kidney diseases. The cell-cell communication that establishes pro- or anti-inflammatory activities is mainly influenced by cytokines, reactive oxygen species, nitric oxide, and phagocytosis. Key proteins orchestrating these processes such as cold-shock proteins linked with chemoattraction and cell maturation have been identified. The prototypic member of the cold-shock protein family, Y-box binding protein (YB)-1, governs specific phenotypic alterations in monocytic cells and was explored in the present study...
June 11, 2017: Kidney International
https://www.readbyqxmd.com/read/28608439/the-role-of-cold-inducible-rna-binding-protein-cirp-in-cell-stress-response
#20
REVIEW
Yi Liao, Lingying Tong, Liling Tang, Shiyong Wu
Cold-inducible RNA binding protein (CIRP) was discovered after the cells were exposed to a moderate cold shock because its production was induced. Other cellular stresses such as UV radiation and hypoxia also could increase its expression. Under stress conditions, CIRP could up regulate its own expression by self-transcriptional activation of alternative promoters. After relocating into cytoplasm from nucleus, CIRP assists cells in adapting to novel environmental conditions via stabilizing specific mRNAs and facilitating their translation...
June 12, 2017: International Journal of Cancer. Journal International du Cancer
keyword
keyword
103223
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"