Abstract:
:Homeoproteins are well known for their role in defining the shape of organs during early development. The late expression of some homeogenes in the nervous system suggests that they might have other, additional functions, possibly in neurite growth and target recognition. The 60 amino acid-long peptide corresponding to the homeobox of Antennapedia (pAntp) translocates through the membrane of neurons in culture and reaches their nuclei. This process is followed by an enhanced morphological differentiation of the neurons. Internalization by neurons is four-fold that observed with fibroplasts. This difference is abolished upon treatment with Endo-N which specifically cleaves alpha,2-8 bonds in polysialic acid. To understand the mode of action of the peptide, we constructed three mutants modified in their capacity to specifically bind promoters and/or to translocate through the cell membrane. The biological properties of the mutants demonstrate that the neurotrophic action of pAntp requires its internalization and integrity of its specific DNA-binding capacity.
journal_name
Prog Neurobioljournal_title
Progress in neurobiologyauthors
Joliot A,Le Roux I,Volovitch M,Bloch-Gallego E,Prochiantz Adoi
10.1016/0301-0082(94)90070-1subject
Has Abstractpub_date
1994-02-01 00:00:00pages
309-11issue
2eissn
0301-0082issn
1873-5118pii
0301-0082(94)90070-1journal_volume
42pub_type
杂志文章abstract::The transplantation of cells that secrete neuroactive substances with analgesic properties into the CNS is a novel method that challenges current approaches in treating chronic pain. This review covers pre-clinical and clinical studies from both allogeneic and xenogeneic sources. One cell source that has been utilized...
journal_title:Progress in neurobiology
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pub_type: 杂志文章,评审
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更新日期:2012-01-01 00:00:00
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pub_type: 杂志文章,评审
doi:10.1016/j.pneurobio.2011.07.010
更新日期:2011-10-01 00:00:00
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pub_type: 历史文章,杂志文章,评审
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abstract::The proteolytical processing of the amyloid precursor protein (APP) gives rise to beta-amyloid peptides, which accumulate in brains of Alzheimer's disease (AD) patients. Different soluble or insoluble higher molecular weight forms of beta-amyloid peptides have been postulated to trigger a complex pathological cascade ...
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abstract::Cysteine string protein (CSP) was discovered by use of a synapse-specific, monoclonal antibody to screen a cDNA expression library in Drosophila. A vertebrate CSP homolog was later identified and shown to co-purify with synaptic vesicles. CSP-α is now recognized as a membrane constituent of many regulated secretory or...
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journal_title:Progress in neurobiology
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更新日期:2018-09-01 00:00:00
abstract::The ventral pallidum (VP) plays a critical role in the processing and execution of motivated behaviors. Yet this brain region is often overlooked in published discussions of the neurobiology of mental health (e.g., addiction, depression). This contributes to a gap in understanding the neurobiological mechanisms of psy...
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