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e9004

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Jie Yu et al.
Biochemical and biophysical research communications, 425(1), 113-118 (2012-07-26)
Bombyx mori Cathepsin D (BmCatD) is specifically expressed in the fat body, and plays a critical role for the programmed cell death of the larval fat body and pupal gut during metamorphosis. To better understand the transcriptional control of BmCatD
Takumi Kayukawa et al.
Developmental biology, 388(1), 48-56 (2014-02-11)
Juvenile hormone (JH) has an ability to repress the precocious metamorphosis of insects during their larval development. Krüppel homolog 1 (Kr-h1) is an early JH-inducible gene that mediates this action of JH; however, the fine hormonal regulation of Kr-h1 and
Sora Enya et al.
Insect biochemistry and molecular biology, 61, 1-7 (2015-04-18)
Insect molting and metamorphosis are tightly controlled by ecdysteroids, which are important steroid hormones that are synthesized from dietary sterols in the prothoracic gland. One of the ecdysteroidogenic genes in the fruit fly Drosophila melanogaster is noppera-bo (nobo), also known
Michael S Foulk et al.
Chromosoma, 122(1-2), 103-119 (2013-01-17)
Regulation of DNA replication is critical, and loss of control can lead to DNA amplification. Naturally occurring, developmentally regulated DNA amplification occurs in the DNA puffs of the late larval salivary gland giant polytene chromosomes in the fungus fly, Sciara
Lucy X Morris et al.
PloS one, 7(10), e46109-e46109 (2012-10-12)
Drosophila adult females but not males contain high levels of the steroid hormone ecdysone, however, the roles played by steroid signaling during Drosophila gametogenesis remain poorly understood. Drosophila germ cells in both sexes initially follow a similar pathway. After germline
Mari H Ogihara et al.
Journal of insect physiology, 80, 42-47 (2015-04-25)
Disruption of the appropriate balance between juvenile hormone (JH) and ecdysteroids causes abnormal insect development. The application of a JH analog (JHA) during the early days of the final (fifth) instar induces dauer larvae with low ecdysteroid titers in insects
Julie L Hentze et al.
PloS one, 8(2), e55131-e55131 (2013-02-06)
Insect steroid hormones (ecdysteroids) are important for female reproduction in many insect species and are required for the initiation and coordination of vital developmental processes. Ecdysteroids are also important for adult male physiology and behavior, but their exact function and
Mariya M Kucherenko et al.
The EMBO journal, 31(24), 4511-4523 (2012-11-20)
Mammalian neuronal stem cells produce multiple neuron types in the course of an individual's development. Similarly, neuronal progenitors in the Drosophila brain generate different types of closely related neurons that are born at specific time points during development. We found
Albert Carbonell et al.
Molecular biology of the cell, 24(3), 361-372 (2012-12-01)
The molting hormone ecdysone triggers chromatin changes via histone modifications that are important for gene regulation. On hormone activation, the ecdysone receptor (EcR) binds to the SET domain-containing histone H3 methyltransferase trithorax-related protein (Trr). Methylation of histone H3 at lysine
Elodie Lanet et al.
Cell reports, 3(3), 587-594 (2013-03-13)
Systemic signals provided by nutrients and hormones are known to coordinate the growth and proliferation of different organs during development. However, within the brain, it is unclear how these signals influence neural progenitor divisions and neuronal diversity. Here, in the
Paola Di Bonito et al.
Viruses, 7(3), 1079-1099 (2015-03-12)
We developed an innovative strategy to induce a cytotoxic T cell (CTL) immune response against protein antigens of choice. It relies on the production of exosomes, i.e., nanovesicles spontaneously released by all cell types. We engineered the upload of huge
Toon Verheyen et al.
Nucleic acids research, 43(12), 5771-5784 (2015-05-21)
Protein phosphatase-1 (PP1) is a key regulator of transcription and is targeted to promoter regions via associated proteins. However, the chromatin binding sites of PP1 have never been studied in a systematic and genome-wide manner. Methylation-based DamID profiling in HeLa
Dana Gancz et al.
Development (Cambridge, England), 140(20), 4145-4154 (2013-09-13)
Tissue-specific stem cells and their niches are organized into functional units that respond to external cues in order to maintain organ homeostasis. Insulin and Target of rapamycin (Tor) signaling mediate external cues that control adult niches and stem cells. Whether
Hajime Ono
Developmental biology, 391(1), 32-42 (2014-04-15)
In insects, a steroid hormone, 20-hydroxyecdysone (20E), plays important roles in the regulation of developmental transitions by initiating signaling cascades via the ecdysone receptor (EcR). Although 20E has been well characterized as the molting hormone, its precursor ecdysone (E) has
Yao Zhang et al.
PLoS genetics, 9(2), e1003273-e1003273 (2013-03-06)
Insect fat body is the organ for intermediary metabolism, comparable to vertebrate liver and adipose tissue. Larval fat body is disintegrated to individual fat body cells and then adult fat body is remodeled at the pupal stage. However, little is
Yusuke Hara et al.
Developmental biology, 374(1), 127-141 (2012-11-15)
The adult optic lobe of Drosophila develops from the primordium during metamorphosis from mid-3rd larval stage to adult. Many cells die during development of the optic lobe with a peak of the number of dying cells at 24 h after
Kim F Rewitz et al.
Current topics in developmental biology, 103, 1-33 (2013-01-26)
The transition from juvenile to adult is a fundamental process that allows animals to allocate resource toward reproduction after completing a certain amount of growth. In insects, growth to a species-specific target size induces pulses of the steroid hormone ecdysone
Zoltan Pahi et al.
PloS one, 10(11), e0142226-e0142226 (2015-11-12)
In eukaryotes the TFIID complex is required for preinitiation complex assembly which positions RNA polymerase II around transcription start sites. On the other hand, histone acetyltransferase complexes including SAGA and ATAC, modulate transcription at several steps through modification of specific
Maria J Gomez-Lamarca et al.
The Journal of cell biology, 210(2), 303-318 (2015-07-15)
Notch signaling is a major regulator of cell fate, proliferation, and differentiation. Like other signaling pathways, its activity is strongly influenced by intracellular trafficking. Besides contributing to signal activation and down-regulation, differential fluxes between trafficking routes can cause aberrant Notch
Mei-xian Wang et al.
Molecular biology reports, 40(5), 3549-3555 (2013-01-01)
Insect molting is an important developmental process of metamorphosis, which is initiated by molting hormone. The molting process includes the activation of dermal cells, epidermal cells separation, molting fluid secretion, the formation of new epidermis and old epidermis excoriation etc.
Jenny Tynyakov et al.
The Journal of experimental biology, 218(Pt 21), 3487-3498 (2015-09-20)
Some crustaceans possess exoskeletons that are reinforced with calcium carbonate. In the crayfish Cherax quadricarinatus, the molar tooth, which is part of the mandibular exoskeleton, contains an unusual crystalline enamel-like apatite layer. As this layer resembles vertebrate enamel in composition
Robert J Ihry et al.
PLoS genetics, 8(11), e1003085-e1003085 (2012-12-05)
Steroid hormones act, through their respective nuclear receptors, to regulate target gene expression. Despite their critical role in development, physiology, and disease, however, it is still unclear how these systemic cues are refined into tissue-specific responses. We identified a mutation
Florentina Rus et al.
The EMBO journal, 32(11), 1626-1638 (2013-05-09)
Throughout the animal kingdom, steroid hormones have been implicated in the defense against microbial infection, but how these systemic signals control immunity is unclear. Here, we show that the steroid hormone ecdysone controls the expression of the pattern recognition receptor
Naoki Yamanaka et al.
Annual review of entomology, 58, 497-516 (2012-10-18)
The steroid hormone ecdysone is the central regulator of insect developmental transitions. Recent new advances in our understanding of ecdysone action have relied heavily on the application of Drosophila melanogaster molecular genetic tools to study insect metamorphosis. In this review
Laura Boulan et al.
Current biology : CB, 23(6), 473-478 (2013-03-13)
During the development of multicellular organisms, body growth is controlled at the scale of the organism by the activity of long-range signaling molecules, mostly hormones. These systemic factors coordinate growth between developing tissues and act as relays to adjust body
Huai Deng et al.
PLoS genetics, 9(2), e1003263-e1003263 (2013-02-15)
Mammalian Nrf2-Keap1 and the homologous Drosophila CncC-dKeap1 protein complexes regulate both transcriptional responses to xenobiotic compounds as well as native cellular and developmental processes. The relationships between the functions of these proteins in xenobiotic responses and in development were unknown.
E Thomas Danielsen et al.
PLoS genetics, 10(6), e1004343-e1004343 (2014-06-20)
Specialized endocrine cells produce and release steroid hormones that govern development, metabolism and reproduction. In order to synthesize steroids, all the genes in the biosynthetic pathway must be coordinately turned on in steroidogenic cells. In Drosophila, the steroid producing endocrine
Jean-Philippe Parvy et al.
Development (Cambridge, England), 141(20), 3955-3965 (2014-09-26)
In most animals, steroid hormones are crucial regulators of physiology and developmental life transitions. Steroid synthesis depends on extrinsic parameters and autoregulatory processes to fine-tune the dynamics of hormone production. In Drosophila, transient increases of the steroid prohormone ecdysone, produced
Canhui Liu et al.
Molecular and biochemical parasitology, 186(1), 38-43 (2012-09-29)
Recent studies have demonstrated that filarial parasites contain a functional homologue of the insect ecdysone receptor (EcR). As a first step in deciphering the physiological role that ecdysteroids play in filarial parasites, adult female parasites cultured in the presence and
Nicolas Loncle et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 32(48), 17086-17096 (2012-12-01)
Large-scale pruning, the removal of long neuronal processes, is deployed widely within the developing nervous system and is essential for proper circuit formation. In Drosophila the dendrites of the class IV dendritic arborization sensory neuron ddaC undergo large-scale pruning by
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