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  • 1
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    Lymphoid development in mice congenitally lacking T cell receptor alpha beta-expressing cells (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-06-05
    Description: Vertebrate T cells express either an alpha beta or gamma delta T cell receptor (TCR). The developmental relatedness of the two cell types is unresolved. alpha beta + T cells respond to specific pathogens by collaborating with immunoglobulin-producing B cells in distinct lymphoid organs such as the spleen and Peyer's patches. The precise influence of alpha beta + T cells on B cell development is poorly understood. To investigate the developmental effects of alpha beta + T cells on B cells and gamma delta + T cells, mice homozygous for a disrupted TCR alpha gene were generated. The homozygotes showed elimination of alpha beta + T cells and the loss of thymic medullae. Despite this, gamma delta + T cells developed in normal numbers, and there was an increase in splenic B cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Philpott, K L -- Viney, J L -- Kay, G -- Rastan, S -- Gardiner, E M -- Chae, S -- Hayday, A C -- Owen, M J -- GM37759/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1992 Jun 5;256(5062):1448-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Imperial Cancer Research Fund, London, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1604321" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*immunology ; Blastocyst ; Blotting, Southern ; Chimera ; Clone Cells ; DNA/genetics/isolation & purification ; Female ; Lymphoid Tissue/growth & development/*immunology ; Macromolecular Substances ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Mutant Strains ; Peyer's Patches/immunology ; Polymerase Chain Reaction ; Receptors, Antigen, T-Cell/*genetics ; Spleen/immunology ; T-Lymphocytes/*immunology ; Thymus Gland/immunology
    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
    Electronic Resource
    Electronic Resource
    Vitamin D receptor alleles and bone physiology (1994)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 56 (1994), S. 307-314 
    Details
    ISSN: 0730-2312
    Keywords: vitamin D calcitriol ; bone ; genetics ; steroid hormone receptor ; vitamin D receptor ; retinoic acid receptor ; calcium ; homeostasis ; calcitonin ; parathyroid hormone ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: The vitamin D endocrine system is central to the control of bone and calcium homeostasis. The active hormonal aform of vitamin D, 1,25 dihydroxyvitamin D (calcitriol), the circulating level of which is tightly regulated, acts through a specific receptor to mediate its genomic actions on almost every aspect of calcium homeostasis. Because of its transactivation function, it possible that a small difference in vitamin D receptor level could be amplified into a biologically significant alteration in physiological setpoint. The recent finding that polymorphisms in the vitamin D receptor gene are predictive of bone density (morrison et al., Nature 367:284-287, 1994) is the first example of an allelic effect in such a homeostatically controlled system. This raises the possibility that such central operators may exist in other regulatory pathways, and could expllain a large part of the observed “ormal” population distribution that exists for all physiological paraameters.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240560306
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  • 3
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    Vitamin D receptor alleles and bone physiology (1994)
    Wiley
    Details
    Publication Date: 1994-11-01
    Print ISSN: 0730-2312
    Electronic ISSN: 1097-4644
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Published by Wiley
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