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  • 1
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    Dissociation of antitumor potency from anthracycline cardiotoxicity in a doxorubicin analog (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-06-28
    Description: The search for new congeners of the leading anticancer drug doxorubicin has led to an analog that is approximately 1000 times more potent, noncardiotoxic at therapeutic dose levels, and non-cross-resistant with doxorubicin. The new anthracycline, 3'-deamino-3'-(3-cyano-4-morpholinyl)doxorubicin (MRA-CN), is produced by incorporation of the 3' amino group of doxorubicin in a new cyanomorpholinyl ring. The marked increase in potency was observed against human ovarian and breast carcinomas in vitro; it was not accompanied by an increase in cardiotoxicity in fetal mouse heart cultures. Doxorubicin and MRA-CN both produced typical cardiac ultrastructural and biochemical changes, but at equimolar concentrations. In addition, MRA-CN was not cross-resistant with doxorubicin in a variant of the human sarcoma cell line MES-SA selected for resistance to doxorubicin. Thus antitumor efficacy was dissociated from both cardiotoxicity and cross-resistance by this modification of anthracycline structure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sikic, B I -- Ehsan, M N -- Harker, W G -- Friend, N F -- Brown, B W -- Newman, R A -- Hacker, M P -- Acton, E M -- CA 24543/CA/NCI NIH HHS/ -- CA 32250/CA/NCI NIH HHS/ -- CA 33303/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Jun 28;228(4707):1544-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4012308" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antineoplastic Agents ; Breast Neoplasms/drug therapy ; Cell Line ; Chemical Phenomena ; Chemistry ; Dose-Response Relationship, Drug ; Doxorubicin/adverse effects/*analogs & derivatives/therapeutic use ; Female ; Heart/drug effects ; Humans ; Isoenzymes ; L-Lactate Dehydrogenase/analysis ; Mice ; Myocardium/enzymology ; Ovarian Neoplasms/drug therapy ; Pregnancy
    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
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    Receptor-associated resistance to growth hormone-releasing factor in dwarf "little" mice (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-04-25
    Description: Anterior pituitaries from the dwarf mouse strain "little" did not release growth hormone or accumulate adenosine 3',5'-monophosphate (cyclic AMP) in response to human and rat growth hormone-releasing factor (GRF). Dibutyryl cyclic AMP, as well as the adenylate cyclase stimulators forskolin and cholera toxin, markedly stimulated growth hormone (GH) release. The basis of the GH deficiency in the little mouse may therefore be a defect in an early stage of GRF-stimulated GH release related either to receptor binding or to the function of the hormone-receptor complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jansson, J O -- Downs, T R -- Beamer, W G -- Frohman, L A -- AM 17947/AM/NIADDK NIH HHS/ -- AM 30667/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1986 Apr 25;232(4749):511-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3008329" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Colforsin/pharmacology ; Cyclic AMP/analysis ; Dwarfism, Pituitary/*physiopathology ; Female ; Growth Hormone-Releasing Hormone/metabolism/pharmacology/physiology/secretion ; Humans ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains/*physiology ; Pituitary Gland, Anterior/analysis/drug effects/physiopathology/secretion ; Receptors, Cell Surface/metabolism/*physiology ; *Receptors, Neuropeptide ; *Receptors, Pituitary Hormone-Regulating Hormone
    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
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    HTLV-III/LAV-neutralizing antibodies to an E. coli-produced fragment of the virus envelope (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-12
    Description: Immunization with either an Escherichia coli recombinant segment of the human T-cell lymphotropic virus (HTLV-III/LAV) envelope protein (gp 120) or with deglycosylated gp 120 envelope protein produced antibodies that neutralize HTLV-III/LAV infection in vitro. Virus neutralization titers of these antisera were equivalent to those obtained with purified native gp120 as immunogen. This localizes at least one class of neutralizing epitopes to the carboxyl-terminal half of the molecule. In addition, native gp120 prevented HTLV-III/LAV--mediated cell fusion, whereas the recombinant gp120 fragment did not. This shows that although glycosylation is not required for induction of neutralizing antibodies, it may be important for interaction with CD4, the virus receptor. A segment of the HTLV-III/LAV envelope produced in E. coli may be an important ingredient of a vaccine for acquired immune deficiency syndrome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Putney, S D -- Matthews, T J -- Robey, W G -- Lynn, D L -- Robert-Guroff, M -- Mueller, W T -- Langlois, A J -- Ghrayeb, J -- Petteway, S R Jr -- Weinhold, K J -- 1PO1-CA43447-01/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1986 Dec 12;234(4782):1392-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2431482" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Viral/*immunology ; Electrophoresis, Polyacrylamide Gel ; Enzyme-Linked Immunosorbent Assay ; Epitopes/analysis ; Escherichia coli/*genetics ; HIV Antibodies ; Humans ; Immunization ; Molecular Weight ; Receptors, Virus/metabolism ; Recombinant Proteins/immunology ; Viral Envelope Proteins/genetics/*immunology
    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
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    Characterization of envelope and core structural gene products of HTLV-III with sera from AIDS patients (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-05-03
    Description: The envelope (env) and structural (gag) gene products of human T-cell leukemia (lymphotropic) virus type III were identified by immunoaffinity chromatography, immunoprecipitation, and two-dimensional oligopeptide mapping methods. The env gene specifies a glycosylated polypeptide with a molecular weight of 160,000 (gp160) that is processed to gp120 and smaller gene products. The gag gene specifies two polypeptides of 70,000 and 55,000 molecular weight (p70 and p55), both of which contain p24, the major structural protein of the mature virion. The techniques in this study can be used to define the extent of variability of the env gene product among different virus isolates and may identify the nature and patterns of the humoral immune response that lead to an immunologically protected state.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robey, W G -- Safai, B -- Oroszlan, S -- Arthur, L O -- Gonda, M A -- Gallo, R C -- Fischinger, P J -- N01-CO-23909/CO/NCI NIH HHS/ -- N01-CO-23910/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 May 3;228(4699):593-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2984774" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology ; Animals ; Antibodies, Viral/immunology ; Chromatography, Affinity ; Deltaretrovirus/*metabolism ; Genes, Viral ; Humans ; Molecular Weight ; Pan troglodytes ; Sarcoma, Kaposi/microbiology ; Viral Envelope Proteins/*isolation & purification ; Viral Proteins/isolation & purification
    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
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    Identification of HTLV-III/LAV sor gene product and detection of antibodies in human sera (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-03-28
    Description: The nucleotide sequence of the genome of HTLV-III, the infectious agent etiologically associated with the acquired immune deficiency syndrome, predicts a small open reading frame, termed sor, located between the pol and env genes. A DNA segment containing 82 percent of the sor region was inserted into a prokaryotic expression vector, pJL6, to determine whether sor encodes a viral protein and to gain some insight into its possible function. The bacterially synthesized sor protein reacted with sera from individuals infected with HTLV-III, indicating that sor is expressed as a protein product or products that are immunogenic in vivo. Antibodies to the purified, bacterially synthesized sor protein were found to react specifically with the same protein and also with a protein of molecular weight 23,000 (23K) in HTLV-III-infected H9 cell extracts. The 23K protein comigrated with a protein immunoprecipitated by the serum of a hemophiliac patient with antibodies to HTLV-III, suggesting that this protein is probably the sor gene product.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kan, N C -- Franchini, G -- Wong-Staal, F -- DuBois, G C -- Robey, W G -- Lautenberger, J A -- Papas, T S -- New York, N.Y. -- Science. 1986 Mar 28;231(4745):1553-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3006245" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*immunology ; Antibodies, Viral/immunology ; Antigens, Viral/*genetics ; Chromosome Mapping ; Cloning, Molecular ; Deltaretrovirus/*genetics/immunology ; *Genes, Viral ; Humans ; Retroviridae Proteins/*genetics/immunology
    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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  • 6
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    Physical mapping of a translocation breakpoint in neurofibromatosis (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-02
    Description: The gene for von Recklinghausen neurofibromatosis (NF1), one of the most common autosomal-dominant disorders of humans, was recently mapped to chromosome 17 by linkage analysis. The identification of two NF1 patients with balanced translocations that involved chromosome 17q11.2 suggests that the disease can arise by gross rearrangement of the NF1 locus, and that the NF1 gene might be identified by cloning the region around these translocation breakpoints. To further define the region of these translocations, a series of chromosome 17 Not I-linking clones has been mapped to proximal 17q and studied by pulsed-field gel electrophoresis. One clone, 17L1 (D17S133), clearly identifies the breakpoint in an NF1 patient with a t(1;17) translocation. A 2.3-megabase pulsed-field map of this region was constructed and indicates that the NF1 breakpoint is only 10 to 240 kilobases away from 17L1. This finding prepares the way for the cloning of NF1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fountain, J W -- Wallace, M R -- Bruce, M A -- Seizinger, B R -- Menon, A G -- Gusella, J F -- Michels, V V -- Schmidt, M A -- Dewald, G W -- Collins, F S -- NS22224/NS/NINDS NIH HHS/ -- NS23410/NS/NINDS NIH HHS/ -- NS23427/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Jun 2;244(4908):1085-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Michigan, Ann Arbor 48109.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2543076" target="_blank"〉PubMed〈/a〉
    Keywords: *Chromosome Mapping ; *Chromosomes, Human, Pair 17 ; Cloning, Molecular ; DNA Restriction Enzymes ; Electrophoresis ; Female ; Genetic Linkage ; Humans ; Hybrid Cells ; Male ; Neurofibromatosis 1/*genetics ; *Translocation, Genetic
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    A model-based estimate of the mean incubation period for AIDS in homosexual men (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-06-03
    Description: Because of the difficulty in identifying the date of exposure to type 1 of the human immunodeficiency virus (HIV-1) infection in persons other than transfusion recipients, studies of the incubation periods for acquired immunodeficiency syndrome (AIDS) have been limited. When data from a cohort of 84 homosexual and bisexual men that provided the information to determine the years of conversion of sera infected with HIV-1 were analyzed, a model for the proportion likely to develop AIDS and the incubation period for AIDS in homosexual men could be derived. The maximum likelihood estimate for the proportion of infected homosexual men developing AIDS is 0.99 (90% confidence interval ranging from 0.38 to 1). Furthermore, the maximum likelihood estimate for the mean incubation period for AIDS in homosexual men is 7.8 years (90% confidence interval ranging from 4.2 years to 15.0 years), which is close to the estimate of 8.2 years for adults developing transfusion-associated AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lui, K J -- Darrow, W W -- Rutherford, G W 3rd -- New York, N.Y. -- Science. 1988 Jun 3;240(4857):1333-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Injury Epidemiology and Control, Centers for Disease Control, Atlanta, GA 30333.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3163848" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/etiology/immunology/*physiopathology ; Antibodies, Viral/analysis ; Blood Transfusion ; Enzyme-Linked Immunosorbent Assay ; HIV/physiology ; HIV Antibodies ; HIV Seropositivity ; *Homosexuality ; Humans ; Immunoassay ; Male ; Mathematics ; *Models, Biological ; Time Factors
    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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  • 8
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    Human control (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shapiro, D H Jr -- Evans, G W -- Shapiro, J -- New York, N.Y. -- Science. 1987 Oct 16;238(4825):260-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3659914" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/psychology ; Health ; Humans ; *Internal-External Control
    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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  • 9
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    Individual tumors of multifocal EB virus-induced malignant lymphomas in tamarins arise from different B-cell clones (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-05-10
    Description: Cotton-top tamarins were inoculated with sufficient Epstein-Barr virus to induce multiple tumors in each animal within 14 to 21 days. The tumors consisted of large-cell lymphomas that contained multiple copies of the Epstein-Barr virus genome and generated Epstein-Barr virus-carrying cell lines showing no detectable consistent chromosomal abnormality. Hybridization of tumor DNA with immunoglobulin gene probes revealed that each lymphoma was oligo- or monoclonal in origin and that individual tumors from the same animal arose from different B-cell clones. Thus the virus induced multiple transformation events in tamarins in vivo to cause malignant tumors resembling the Epstein-Barr virus-associated lymphomas of patients with organ transplants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cleary, M L -- Epstein, M A -- Finerty, S -- Dorfman, R F -- Bornkamm, G W -- Kirkwood, J K -- Morgan, A J -- Sklar, J -- CA 34233/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 May 10;228(4700):722-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2986287" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*microbiology ; Burkitt Lymphoma/genetics/*microbiology ; Cell Line ; DNA, Neoplasm/genetics ; Heart Transplantation ; Herpesvirus 4, Human ; Humans ; Neoplasms, Experimental/genetics/microbiology ; Nucleic Acid Hybridization ; Saguinus
    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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