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排序方式: 共有327条查询结果,搜索用时 46 毫秒
1.
Amaria Darmellah Amel Rayah Rodolphe Auger Marie-Hélène Cuif Magali Prigent Monique Arpin Andres Alcover Cécile Delarasse Jean M. Kanellopoulos 《The Journal of biological chemistry》2012,287(41):34583-34595
The amyloid precursor protein (APP) can be cleaved by α-secretases in neural cells to produce the soluble APP ectodomain (sAPPα), which is neuroprotective. We have shown previously that activation of the purinergic P2X7 receptor (P2X7R) triggers sAPPα shedding from neural cells. Here, we demonstrate that the activation of ezrin, radixin, and moesin (ERM) proteins is required for the P2X7R-dependent proteolytic processing of APP leading to sAPPα release. Indeed, the down-regulation of ERM by siRNA blocked the P2X7R-dependent shedding of sAPPα. We also show that P2X7R stimulation triggered the phosphorylation of ERM. Thus, ezrin translocates to the plasma membrane to interact with P2X7R. Using specific pharmacological inhibitors, we established the order in which several enzymes trigger the P2X7R-dependent release of sAPPα. Thus, a Rho kinase and the MAPK modules ERK1/2 and JNK act upstream of ERM, whereas a PI3K activity is triggered downstream. For the first time, this work identifies ERM as major partners in the regulated non-amyloidogenic processing of APP. 相似文献
2.
Turbelin Anna J. Diagne Christophe Hudgins Emma J. Moodley Desika Kourantidou Melina Novoa Ana Haubrock Philip J. Bernery Camille Gozlan Rodolphe E. Francis Robert A. Courchamp Franck 《Biological invasions》2022,24(7):2061-2079
Biological Invasions - Introduction pathways play a pivotal role in the success of Invasive Alien Species (IAS)—the subset of alien species that have a negative environmental and/or... 相似文献
3.
Brazier Thomas Cherif Emira Martin Jean-François Gilles André Blanchet Simon Zhao Yahui Combe Marine McCairns R. J. Scott Gozlan Rodolphe E. 《Biological invasions》2022,24(8):2399-2420
Biological Invasions - Insufficient data on the origins of the first introduced propagule and the initial stages of invasion complicate the reconstruction of a species’ invasion history.... 相似文献
4.
5.
Christine Jacomet Clotilde Allavena Fleur Peyrol Bruno Pereira Laurence Morand Joubert Haleh Bagheri Laurent Cotte Rodolphe Garaffo Laurent Gerbaud Pierre Dellamonica 《PloS one》2015,10(2)
BackgroundIn the interest of cost effectiveness, switching antiretroviral brand name medications to generics is recommended in France since 2013. The study objective was to evaluate the perception of generics per se and antiretroviral generics in HIV-infected patients and their hospital physiciansConclusionsAcceptability of antiretroviral generics in this French population was mostly dictated by the patient’s and physician’s knowledge and use of generics overall. It should be improved with an efficient information of both patients and physicians. 相似文献
6.
Natalia Kirichenko Peter Huemer Helmut Deutsch Paolo Triberti Rodolphe Rougerie Carlos Lopez-Vaamonde 《ZooKeys》2015,(473):157-176
Europe has one of the best-known Lepidopteran faunas in the world, yet many species are still being discovered, especially in groups of small moths. Here we describe a new gracillariid species from the south-eastern Alps, Callisto
basistrigella Huemer, Deutsch & Triberti, sp. n. It shows differences from its sister species Callisto
coffeella in morphology, the barcode region of the cytochrome c oxidase I gene and the nuclear gene histone H3. Both Callisto
basistrigella and Callisto
coffeella can co-occur in sympatry without evidence of admixture. Two Callisto
basistrigella specimens show evidence of introgression. We highlight the importance of an integrative approach to delimit species, combining morphological and ecological data with mitochondrial and nuclear sequence data. Furthermore, in connection with this study, Ornix
blandella Müller-Rutz, 1920, syn. n. is synonymized with Callisto
coffeella (Zetterstedt, 1839). 相似文献
7.
Rodolphe Barrangou Amanda Birmingham Stefan Wiemann Roderick L. Beijersbergen Veit Hornung Anja?van Brabant Smith 《Nucleic acids research》2015,43(7):3407-3419
The discovery that the machinery of the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas9 bacterial immune system can be re-purposed to easily create deletions, insertions and replacements in the mammalian genome has revolutionized the field of genome engineering and re-invigorated the field of gene therapy. Many parallels have been drawn between the newly discovered CRISPR-Cas9 system and the RNA interference (RNAi) pathway in terms of their utility for understanding and interrogating gene function in mammalian cells. Given this similarity, the CRISPR-Cas9 field stands to benefit immensely from lessons learned during the development of RNAi technology. We examine how the history of RNAi can inform today''s challenges in CRISPR-Cas9 genome engineering such as efficiency, specificity, high-throughput screening and delivery for in vivo and therapeutic applications. 相似文献
8.
9.
Rodolphe Elie Gozlan Eva Zhorsk Emira Cherif Takashi Asaeda John Robert Britton Cha‐Ho Chang To Hong Rafael Miranda Jií Musil Meta Povz Ali Serhan Tarkan Elena Tricarico Teodora Trichkova Hugo Verreycken Andrej Weiperth Andrej Witkowski Lluis Zamora Irene Zweimueller Yahui Zhao Hamid Reza Esmaeili Marine Combe 《Ecology and evolution》2020,10(16):8623-8633
Rapid adaptation to global change can counter vulnerability of species to population declines and extinction. Theoretically, under such circumstances both genetic variation and phenotypic plasticity can maintain population fitness, but empirical support for this is currently limited. Here, we aim to characterize the role of environmental and genetic diversity, and their prior evolutionary history (via haplogroup profiles) in shaping patterns of life history traits during biological invasion. Data were derived from both genetic and life history traits including a morphological analysis of 29 native and invasive populations of topmouth gudgeon Pseudorasbora parva coupled with climatic variables from each location. General additive models were constructed to explain distribution of somatic growth rate (SGR) data across native and invasive ranges, with model selection performed using Akaike's information criteria. Genetic and environmental drivers that structured the life history of populations in their native range were less influential in their invasive populations. For some vertebrates at least, fitness‐related trait shifts do not seem to be dependent on the level of genetic diversity or haplogroup makeup of the initial introduced propagule, nor of the availability of local environmental conditions being similar to those experienced in their native range. As long as local conditions are not beyond the species physiological threshold, its local establishment and invasive potential are likely to be determined by local drivers, such as density‐dependent effects linked to resource availability or to local biotic resistance. 相似文献
10.
Michel Henry Denise Guétard Rodolphe Suspène Christophe Rusniok Simon Wain-Hobson Jean-Pierre Vartanian 《PloS one》2009,4(1)
Hepatitis B virus (HBV) DNA is vulnerable to editing by human cytidine deaminases of the APOBEC3 (A3A-H) family albeit to much lower levels than HIV cDNA. We have analyzed and compared HBV editing by all seven enzymes in a quail cell line that does not produce any endogenous DNA cytidine deaminase activity. Using 3DPCR it was possible to show that all but A3DE were able to deaminate HBV DNA at levels from 10−2 to 10−5
in vitro, with A3A proving to be the most efficient editor. The amino terminal domain of A3G alone was completely devoid of deaminase activity to within the sensitivity of 3DPCR (∼10−4 to 10−5). Detailed analysis of the dinucleotide editing context showed that only A3G and A3H have strong preferences, notably CpC and TpC. A phylogenic analysis of A3 exons revealed that A3G is in fact a chimera with the first two exons being derived from the A3F gene. This might allow co-expression of the two genes that are able to restrict HIV-1Δvif efficiently. 相似文献