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  • Axons/*physiology  (1)
  • Base Sequence  (1)
  • American Association for the Advancement of Science (AAAS)  (2)
  • 1
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    Role of a conserved retinoic acid response element in rhombomere restriction of Hoxb-1 (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-09-16
    Description: After activation in mesoderm and neuroectoderm, expression of the Hoxb-1 gene is progressively restricted to rhombomere (r) 4 in the hindbrain. Analysis of the chick and mouse Hoxb-1 genes identified positive and negative regulatory regions that cooperate to mediate segment-restricted expression during rhombomere formation. An enhancer generates expression extending into r3 and r5, and a repressor limits this domain to r4. The repressor contains a conserved retinoic acid response element, point mutations in which allow expression to spread into adjacent rhombomeres. Retinoids and their nuclear receptors may therefore participate in sharpening segment-restricted expression of Hoxb-1 during rhombomere boundary formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Studer, M -- Popperl, H -- Marshall, H -- Kuroiwa, A -- Krumlauf, R -- New York, N.Y. -- Science. 1994 Sep 16;265(5179):1728-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lab of Developmental Neurobiology, National Institute for Medical Research, Mill Hill, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7916164" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Chick Embryo ; Enhancer Elements, Genetic ; Gene Expression Regulation ; *Genes, Homeobox ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Neural Crest/metabolism ; Oligonucleotides/metabolism ; Point Mutation ; Receptors, Cytoplasmic and Nuclear/metabolism ; Receptors, Retinoic Acid/metabolism ; *Regulatory Sequences, Nucleic Acid ; Retinoid X Receptors ; Rhombencephalon/*embryology/metabolism ; *Transcription Factors ; Tretinoin/*pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Geniculocortical input drives genetic distinctions between primary and higher-order visual areas (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-06-08
    Description: Studies of area patterning of the neocortex have focused on primary areas, concluding that the primary visual area, V1, is specified by transcription factors (TFs) expressed by progenitors. Mechanisms that determine higher-order visual areas (V(HO)) and distinguish them from V1 are unknown. We demonstrated a requirement for thalamocortical axon (TCA) input by genetically deleting geniculocortical TCAs and showed that they drive differentiation of patterned gene expression that distinguishes V1 and V(HO). Our findings suggest a multistage process for area patterning: TFs expressed by progenitors specify an occipital visual cortical field that differentiates into V1 and V(HO); this latter phase requires geniculocortical TCA input to the nascent V1 that determines genetic distinctions between V1 and V(HO) for all layers and ultimately determines their area-specific functional properties.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3851411/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3851411/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chou, Shen-Ju -- Babot, Zoila -- Leingartner, Axel -- Studer, Michele -- Nakagawa, Yasushi -- O'Leary, Dennis D M -- MH086147/MH/NIMH NIH HHS/ -- R01 MH086147/MH/NIMH NIH HHS/ -- R01 NS031558/NS/NINDS NIH HHS/ -- R01 NS31558/NS/NINDS NIH HHS/ -- R37 NS031558/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2013 Jun 7;340(6137):1239-42. doi: 10.1126/science.1232806.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Neurobiology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23744949" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Gene Deletion ; Gene Expression Regulation ; Genetic Markers ; Mice ; Mice, Knockout ; Neocortex/*physiology ; Neural Stem Cells/metabolism ; Thalamus/*physiology ; Transcription Factors/biosynthesis ; Visual Cortex/*physiology ; Visual Fields/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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