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  • 1
    Publication Date: 1991-02-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cogliano, V J -- Farland, W H -- Preuss, P W -- Wiltse, J A -- Rhomberg, L R -- Chen, C W -- Mass, M J -- Nosnow, S -- White, P D -- Parker, J C -- New York, N.Y. -- Science. 1991 Feb 8;251(4994):606-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1992511" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Assay ; *Carcinogens ; Humans ; Public Health ; Risk ; United States ; United States Environmental Protection Agency
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1991-12-20
    Description: Transient activation of the interleukin-2 (IL-2) gene after antigen recognition by T lymphocytes is crucial for subsequent T cell proliferation and differentiation. Several IL-2 gene regulatory elements and binding factors necessary for activation of the IL-2 gene have been defined. However, little is known about negative regulation of IL-2 expression, which is likely to be important in the rapid shut-off of IL-2 transcription. A nucleotide sequence element (NRE-A) that negatively regulates IL-2 expression has been identified within the IL-2 gene. T cell nuclear extracts contained an NRE-A binding activity. A complementary DNA was isolated that encodes a zinc finger-containing protein that suppressed IL-2 gene expression. The observation of negative regulation of the immunoglobulin heavy chain gene enhancer by an element similar to NRE-A suggests that related proteins may regulate multiple immune response genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, T M -- Moolten, D -- Burlein, J -- Romano, J -- Bhaerman, R -- Godillot, A -- Mellon, M -- Rauscher, F J 3rd -- Kant, J A -- AI23879/AI/NIAID NIH HHS/ -- CA23413/CA/NCI NIH HHS/ -- CA54428/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1991 Dec 20;254(5039):1791-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, School of Medicine, University of New Mexico, Albuquerque 87131.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1840704" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; DNA Probes ; *Enhancer Elements, Genetic ; *Gene Expression Regulation ; *Genes, Immunoglobulin ; Humans ; Immunoglobulin Heavy Chains/*genetics ; Interleukin-2/*genetics ; Mice ; Molecular Sequence Data ; Oligodeoxyribonucleotides ; Regulatory Sequences, Nucleic Acid ; Restriction Mapping ; T-Lymphocytes/*immunology ; *Transcription, Genetic ; Zinc Fingers/*genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 1991-12-20
    Description: The binding of multivalent immunoglobulin G complexes to Fc receptors (Fc gamma Rs) on macrophages activates multiple immune functions. A murine macrophage cell line, but not a fibroblast cell line, that was transfected with human Fc gamma RIIA mediated phagocytosis and an intracellular Ca2+ concentration ([Ca2+]i) flux upon cross-linking of human Fc gamma RIIA. Transfected macrophages that expressed a truncated receptor lacking 17 carboxy-terminal amino acids phagocytosed small antibody complexes. However, only wild-type transfectants phagocytosed labeled erythrocytes and fluxed [Ca2+]i. Thus, the cytoplasmic domain of human Fc gamma RIIA contains distinct functional regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Odin, J A -- Edberg, J C -- Painter, C J -- Kimberly, R P -- Unkeless, J C -- AI 24322/AI/NIAID NIH HHS/ -- AI 24671/AI/NIAID NIH HHS/ -- AR 33062/AR/NIAMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1991 Dec 20;254(5039):1785-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Mount Sinai Medical Center, New York, NY 10029.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1837175" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal ; Antigens, Differentiation/genetics/*physiology ; CHO Cells ; Calcium/*metabolism ; Cell Line ; Cloning, Molecular ; Cricetinae ; Homeostasis ; Humans ; Immunoglobulin G/metabolism ; Kinetics ; Macrophages ; Mice ; *Phagocytosis ; Receptors, Fc/genetics/*physiology ; Receptors, IgG ; Recombinant Proteins/metabolism ; *Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 1991-12-30
    Description: Familial hypercholesterolemia (FH) is an inherited disorder in humans that is caused by a deficiency of low density lipoprotein receptors (LDLRs). An animal model for FH, the Watanabe Heritable Hyperlipidemic rabbit, was used to develop an approach for liver-directed gene therapy based on transplantation of autologous hepatocytes that were genetically corrected ex vivo with recombinant retroviruses. Animals transplanted with LDLR-transduced autologous hepatocytes demonstrated a 30 to 50 percent decrease in total serum cholesterol that persisted for the duration of the experiment (122 days). Recombinant-derived LDLR RNA was harvested from tissues with no diminution for up to 6.5 months after transplantation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chowdhury, J R -- Grossman, M -- Gupta, S -- Chowdhury, N R -- Baker, J R Jr -- Wilson, J M -- P01-DK-42718/DK/NIDDK NIH HHS/ -- R01-DK-34357/DK/NIDDK NIH HHS/ -- R01-DK42193-01/DK/NIDDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1991 Dec 20;254(5039):1802-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, Albert Einstein College of Medicine, Bronx, NY 10461.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1722351" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Gene Expression ; *Genetic Therapy ; Hypercholesterolemia/*genetics/*therapy ; Liver/physiology ; Liver Transplantation/physiology ; RNA/genetics/isolation & purification ; Rabbits ; Receptors, LDL/analysis/*genetics ; Recombinant Proteins/analysis ; Serum Albumin/analysis/genetics ; *Transfection ; beta-Galactosidase/analysis/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 1991-07-26
    Description: Malignant hyperthermia (MH) causes neurological, liver, and kidney damage and death in humans and major economic losses in the swine industry. A single point mutation in the porcine gene for the skeletal muscle ryanodine receptor (ryr1) was found to be correlated with MH in five major breeds of lean, heavily muscled swine. Haplotyping suggests that the mutation in all five breeds has a common origin. Assuming that this is the causal mutation for MH, the development of a noninvasive diagnostic test will provide the basis for elimination of the MH gene or its controlled inclusion in swine breeding programs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fujii, J -- Otsu, K -- Zorzato, F -- de Leon, S -- Khanna, V K -- Weiler, J E -- O'Brien, P J -- MacLennan, D H -- New York, N.Y. -- Science. 1991 Jul 26;253(5018):448-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Banting and Best Department of Medical Research, University of Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1862346" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Codon/genetics ; Haplotypes ; Malignant Hyperthermia/genetics/*veterinary ; Molecular Sequence Data ; *Mutation ; Polymerase Chain Reaction ; Polymorphism, Genetic ; Receptors, Cholinergic/*genetics ; Restriction Mapping ; Ryanodine/metabolism ; Ryanodine Receptor Calcium Release Channel ; Species Specificity ; Swine ; Swine Diseases/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 1991-11-25
    Description: The complementary DNA encoding a 585-amino acid parathyroid hormone-parathyroid hormone-related peptide (PTH-PTHrP) receptor with seven potential membrane-spanning domains was cloned by COS-7 expression using an opossum kidney cell complementary DNA (cDNA) library. The expressed receptor binds PTH and PTHrP with equal affinity, and both ligands equivalently stimulate adenylate cyclase. Striking homology with the calcitonin receptor and lack of homology with other G protein-linked receptors indicate that receptors for these calcium-regulating hormones are related and represent a new family.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Juppner, H -- Abou-Samra, A B -- Freeman, M -- Kong, X F -- Schipani, E -- Richards, J -- Kolakowski, L F Jr -- Hock, J -- Potts, J T Jr -- Kronenberg, H M -- DK 11794/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1991 Nov 15;254(5034):1024-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Endocrine Unit, Massachusetts General Hospital, Boston 02114.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1658941" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Membrane Glycoproteins/chemistry/genetics/metabolism ; Molecular Sequence Data ; Opossums ; Parathyroid Hormone/metabolism ; Parathyroid Hormone-Related Protein ; Proteins/metabolism ; Receptors, Cell Surface/chemistry/*genetics/metabolism ; Receptors, Parathyroid Hormone ; Sequence Alignment ; Solubility
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  • 7
    Publication Date: 1991-05-03
    Description: A human immunoglobulin G1 (IgG1) antibody oligomer was isolated from a transfected myeloma cell line that produced a monoclonal antibody to group B streptococci. Compared to the IgG1 monomer, the oligomer was significantly more effective at protecting neonatal rats from infection in vivo. The oligomer was also shown to cross the placenta and to be stable in neonatal rats. Immunochemical analysis and complementary DNA sequencing showed that the transfected cell line produced two distinct kappa light chains: a normal light chain (Ln) with a molecular mass of 25 kilodaltons and a 37-kilodalton species (L37), the domain composition of which was variable-variable-constant (V-V-C). Cotransfection of vectors encoding the heavy chain and L37 resulted in production of oligomeric IgG.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shuford, W -- Raff, H V -- Finley, J W -- Esselstyn, J -- Harris, L J -- New York, N.Y. -- Science. 1991 May 3;252(5006):724-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immune Sciences, Bristol-Myers Squibb Pharmaceutical Research Institute-Seattle, WA 98121.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1902593" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Antibodies, Bacterial/biosynthesis/immunology/pharmacokinetics ; Antibodies, Monoclonal/biosynthesis/immunology/pharmacokinetics ; Cell Line ; Female ; Humans ; Immunization, Passive ; Immunoglobulin G/*biosynthesis/genetics/immunology ; Immunoglobulin M/genetics ; Immunoglobulin Variable Region/*biosynthesis/genetics/immunology ; Immunoglobulin kappa-Chains/*biosynthesis/genetics/immunology ; Macromolecular Substances ; Maternal-Fetal Exchange ; Multiple Myeloma ; Pregnancy ; Rats ; Streptococcal Infections/prevention & control ; Streptococcus agalactiae/immunology ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 1991-11-01
    Description: The cerebellum has many properties that make it a useful model for investigating neural development. Purkinje cells, the major output neurons of the cerebellar cortex, have drawn special attention because of the availability of biochemical markers and mutants that affect their development. The spatial expression of L7, a protein specific for Purkinje cells, and L7 beta Gal, a gene expressed in transgenic mice that was constructed from the L7 promoter and the marker beta-galactosidase, delineated bands of Purkinje cells that increased in number during early postnatal development. Expression of the transgene in adult reeler mutant mice, which show inverted cortical lamination, and in primary culture showed that the initial expression of L7 is intrinsic to Purkinje cells and does not depend on extracellular signals. This may reflect an underlying developmental map in cerebellum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smeyne, R J -- Oberdick, J -- Schilling, K -- Berrebi, A S -- Mugnaini, E -- Morgan, J I -- NRSA 08-08601/NR/NINR NIH HHS/ -- NS-09904/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1991 Nov 1;254(5032):719-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurosciences, Roche Institute of Molecular Biology, Roche Research Center, Nutley, NJ 07110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1948052" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Cerebellum/cytology/embryology/*growth & development ; Embryonic and Fetal Development ; Mice ; Mice, Neurologic Mutants ; Mice, Transgenic ; Purkinje Cells/cytology/*physiology ; Recombinant Proteins/metabolism ; beta-Galactosidase/*genetics/metabolism
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  • 9
    Publication Date: 1991-01-25
    Description: CP-96,345, a nonpeptide substance P antagonist, is selective for the tachykinin NK1 receptor. The compound binds to a single population of sites in guinea pig brain and potently inhibits substance P-induced excitation of locus ceruleus neurons. CP-96,345 should be a useful tool for studying the action of substance P in the central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McLean, S -- Ganong, A H -- Seeger, T F -- Bryce, D K -- Pratt, K G -- Reynolds, L S -- Siok, C J -- Lowe, J A 3rd -- Heym, J -- New York, N.Y. -- Science. 1991 Jan 25;251(4992):437-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Central Research Division, Pfizer Inc., Groton, CT 06340.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1703324" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Autoradiography ; Binding Sites ; Binding, Competitive ; Biphenyl Compounds/*metabolism/pharmacology ; Brain/*metabolism/radionuclide imaging ; Corpus Striatum/*metabolism/radionuclide imaging ; Guinea Pigs ; Hydrogen-Ion Concentration ; Male ; Receptors, Neurokinin-1 ; Receptors, Neurotransmitter/*antagonists & inhibitors/*metabolism ; Receptors, Tachykinin ; Spectrophotometry ; Substance P/metabolism ; Tachykinins/metabolism
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  • 10
    Publication Date: 1991-10-11
    Description: A titer for homologous viral neutralization activity (greater than 1:19,683) was observed after a 3.5-year immunization period with an octameric, branching peptide representing the principal neutralizing determinant (PND) of the human immunodeficiency virus-1IIIB envelope protein. Booster immunizations elicited persistent and potent antibodies in guinea pigs, exceeding responses produced by a conventional bovine serum albumin conjugate by 100-fold. Peptide length, central presentation of a conserved sequence, and inclusion of an upstream sequence contributed to immunogenicity. Titers (greater than 1:1,000) of heterotypic neutralizing antibodies also developed. Octameric PND peptides are a promising approach for an acquired immunodeficiency syndrome (AIDS) vaccine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, C Y -- Looney, D J -- Li, M L -- Walfield, A M -- Ye, J -- Hosein, B -- Tam, J P -- Wong-Staal, F -- IU01-AI-30238/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1991 Oct 11;254(5029):285-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉United Biomedical, Inc., Lake Success, NY 11042.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1925584" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS Vaccines/genetics/*immunology ; Amino Acid Sequence ; Animals ; Female ; Guinea Pigs ; HIV Antigens/genetics/*immunology ; HIV-1/*immunology ; Molecular Sequence Data ; Neutralization Tests ; Vaccines, Synthetic/genetics/*immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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