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  • 1
    Online Resource
    Online Resource
    La Vergne :Royal Society of Chemistry, The,
    Keywords: Periodicals. ; Electronic books.
    Description / Table of Contents: This Specialist Periodical Report aims to reflect the growing interest in the potential of organometallic chemistry.
    Type of Medium: Online Resource
    Pages: 1 online resource (566 pages)
    Edition: 1st ed.
    ISBN: 9781847554178
    Series Statement: Issn Series
    DDC: 547.05
    Language: English
    Note: Organometallic Chemistry -- Contents -- Chapter 1 TheoreticaI Organametallic chemistry -- 1 Introduction -- 2 s-Block Metals -- 2.1 Structural and Spectroscopic Studies -- 2.2 Mechanistic Studies -- 3 p-BlockMetals -- 3.1 Structural and Spectroscopic Studies -- 3.2 Mechanistic Studies -- 4 d- and f-Block Metals -- 4.1 Structural and Spectroscopic Studies -- 4.2 Mechanistic Studies -- References -- Chapter 2 Group 1: The Alkali and Coinange Metals -- 1 Alkali Metals -- 1.1 Introduction -- 1.2 Alkyl Derivatives -- 1.3 Alkenyl, Allyl, Vinyl, Alkynyl and Related Derivatives -- 1.4 Aryl Derivatives -- 1.5 Cyclopentadienyl and Related Derivatives -- 2 Copper, Silver and Gold -- 2.1 Introduction -- 2.2 Copper Compounds -- 2.3 Silver Compounds -- 2.4 Gold Compounds -- References -- Chapter 3 Group 2 (Be-Ba) and Group 12 (Zn-Hg) -- 1 Scope of the Review -- 2 Group 2 -- 3 Group 12 -- References -- Chapter 4 Scandium, Yttrium and the Lanthanides -- 1 Introduction -- 2 Theoretical and Spectroscopic Studies -- 2.1 Gas Phase Experiments -- 2.2 Computational Chemistry -- 2.3 Spectroscopy of Molecular Complexes -- 3 New Compounds and Complexes -- 3.1 Simple Cyclopentadienyl Ancillaries -- 3.2 Pentasubstituted Cyclopentadienyls -- 3.3 Indenyls -- 3.4 Cyclooctatetraenyl Ligands -- 3.5 Arene and Related Ligands -- 3.6 Carbaborane Complexes -- 3.7 Miscellaneous Organometallics -- 4 Polymerization Catalysis -- 4.1 Olefin Polymerization -- 4.2 Lactone Polymerization -- 4.3 Miscellaneous Polymerizations -- 5 Lanthanides in Organic Synthesis -- 5.1 Hydroamination Reactions -- 5.2 Hydrosilylation Reactions -- 5.3 Other Applications -- References -- Chapter 5 Carboranes, Including Their Metal Complexes -- 1 Introduction -- 2 Theoretical Studies -- 3 Composition Cx,By, and Their Metalloboranes -- 3.1 Composition C2B3 and C3B3 -- 3.2 Composition C2B4 -- 3.3 Composition C6B6. , 3.4 Composition C2B8 -- 3.5 Composition C4Bn, (n = 7, 8) -- 3.6 Composition C2B9 -- 3.7 Composition CB10 -- 3.8 Composition CB11 -- 3.9 Composition C2B10 -- 4 Materials -- 5 BNCT -- References -- Chapter 6 Group 13: Boron, Aluminium, Gallium, Indium and Thallium -- 1 Boron -- 1.1 General -- 1.2 Compounds Containing Nitrogen or Oxygen -- 1.3 Compounds Containing Metal Atoms -- 2 Aluminium -- 2.1 General and Compounds Containing a Group 15 Atom (N, P, As or Sb) -- 2.2 Compounds Containing Oxygen, Sulfur or Halogen Atoms -- 2.3 Compounds Containing Another Metal Atom -- 3 Gallium -- 4 Indium -- 5 Thallium -- References -- Chapter 7 Group 15: Phosphorus, Arsenic, Antimony and Bismuth -- 1 Phosphorus -- 2 Arsenic, Antimony and Bismuth -- References -- Chapter 8 Organic Aspects of Organometallic Chemistry -- 1 Introduction -- 2 Coupling Reactions -- 2.1 Cross-coupling Reactions -- 2.2 Allylic Substitution -- 2.3 Catalysed Carbon―Heteroatom Bond Formation -- 3 Carbonylation Reactions -- 3.1 Pauson-Khand and Related Reactions -- 4 Organometallic Methods of C―C Bond Formation -- 4.1 Metathesis Reactions -- 4.2 Diazo-carbenoid Chemistry -- 4.3 Multi-component Cyclisations -- 5 Oxidative and Reductive Processes -- 5.1 Oxidation Reactions -- 5.2 Reduction Reactions -- 6 Lewis Acid Mediated Processes -- 7 Emerging Areas -- 7.1 Rhodium Catalysed 1,2- and 1,4-Addition Reactions -- 7.2 Organometallic Nucleophilic Catalysts -- 7.3 Fluorous Phase Chemistry -- References -- Chapter 9 Metal Carbonyls -- 1 Introduction -- 2 Reviews -- 3 Theoretical, Spectroscopic and General Studies -- 3.1 Theoretical Studies -- 3.2 Spectroscopic Studies -- 3.3 General Studies -- 4 Chemistry of the Metal Carbonyls -- 4.1 Titanium, Zirconium and Hafnium -- 4.2 Vanadium, Niobium and Tantalum -- 4.3 Chromium, Molybdenum and Tungsten -- 4.4 Manganese, Technetium and Rhenium. , 4.5 Iron, Ruthenium and Osmium -- 4.6 Cobalt, Rhodium and Iridium -- 4.7 Nickel, Palladium and Platinum -- 4.8 Copper, Silver and Gold -- 4.9 Carbonyl Complexes Containing Two or More Different Metal Atoms -- 5 Internet Sites for Carbonyl Chemists -- References -- Chapter 10 Complexes Containing Metal Carbon σ-Bonds of the Groups Titanium to Manganese, Including Carbenes and Carbynes -- Part I: Group 4 -- References -- Part II: Group 5 -- 1 Reviews -- 2 Alkyl Complexes -- 3 Allyl Complexes -- 4 Alkyne Complexes -- 5 Alkylidene Complexes -- 6 Imine Complexes -- References -- Part III: Group 6 -- References -- Part IV: Group 7 -- References -- Chapter 11 Organo-Transition Metal Cluster Compounds -- 1 Introduction -- 2 General Reviews -- 3 Syntheses -- 4 Spectroscopic Studies -- 4.1 IR -- 4.2 Mass Spectrometry -- 5 Theory -- 6 Structural Studies -- 7 Large Clusters -- 8 Group 3 -- 9 Group 4 -- 10 Group 5 -- 11 Group 6 -- 12 Group 7 -- 12.1 Technetium -- 12.2 Rhenium -- 13 Group 8 -- 13.1 Iron -- 13.2 Ruthenium -- 13.3 Osmium -- 13.4 Mixed-metal Clusters Containing only Group 8 Metals -- 14 Group 9 -- 14.1 Cobalt -- 14.2 Rhodium -- 14.3 Iridium -- 14.4 Mixed-metal Clusters Containing only Group 9 Metals -- 15 Group 10 -- 15.1 Nickel -- 15.2 Palladium -- 15.3 Platinum -- 16 Group 11 -- 16.1 Copper -- 16.2 Silver -- 16.3 Gold -- 16.4 Mixed-metal Clusters Containing only Group 11 Metals -- 17 Group 12 -- 18 Heterometallic Clusters -- 18.1 Group 4 -- 18.2 Group 5 -- 18.3 Group 6 -- 18.4 Group 7 -- 18.5 Group 8 -- 18.6 Group 9 -- 18.7 Group 10 -- 18.8 Group 11 -- 18.9 Compounds Containing Three Different Metal Atoms -- References -- Chapter 12 Complexes Containing Metal―Carbon σ-Bonds of the Groups Iron, Cobalt and Nickel, Including Carbenes and Carbynes -- 1 Reviews and Articles of General Interest -- 2 Metal-Carbon σ-Bonds Involving Group 8, 9 and 10 Metals. , 2.1 The Iron Triad -- 2.2 The Cobalt Triad -- 2.3 The Nickel Triad -- 3 Carbene and Carbyne Complexes of Groups 8, 9 and 10 -- References -- Chapter 13 Hydrocarbon Transition Metal π-Complexes other than η-C5H5 and η-Arene Complexes -- 1 Introduction -- 2 Reviews -- 3 Complexes Containing Allyls or Monoalkenes -- 3.1 Cr, Mo, W -- 3.2 Fe, Ru,Os -- 3.3 Co, Rh, Ir -- 3.4 Ni, Pd, Pt -- 3.5 Other Metals -- 4 Complexes Containing Unconjugated Alkenes -- 5 Complexes Containing Cyclic Conjugated Alkenes -- 5.1 Cr, Mo, W -- 5.2 Fe, Ru,Os -- 5.3 Other Metals -- 6 Complexes Containing Acyclic Alkenes -- 7 Complexes Containing Alkynes -- 8 Polymetallic Complexes -- 8.1 Bimetallic Complexes -- 8.2 Multimetallic Complexes -- 8.3 Ferrocenyl Containing Complexes -- References -- Chapter 14 η-C5H5 and η-Arene Substituted Transition Metal Complexes -- 1 Cyclopentadienyl Ligands -- 1.1 Main Group, Lanthanides and Actinides -- 1.2 Titanium, Zirconium and Hafnium -- 1.3 Vanadium, Niobium and Tantalum -- 1.4 Chromium, Molybdenum and Tungsten -- 1.5 Manganese, Rhenium and Technetium -- 1.6 Iron, Ruthenium and Osmium -- 1.7 Cobalt, Rhodium and Iridium -- 1.8 Nickel, Palladium and Platinum -- 2 η-Arenes -- 2.1 Iron and Ruthenium -- 2.2 Chromium -- 2.3 Other Arenes -- References -- Author Index.
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  • 2
    Online Resource
    Online Resource
    La Vergne :Royal Society of Chemistry, The,
    Keywords: Periodicals. ; Electronic books.
    Description / Table of Contents: This Specialist Periodical Report aims to reflect the growing interest in the potential of organometallic chemistry.
    Type of Medium: Online Resource
    Pages: 1 online resource (540 pages)
    Edition: 1st ed.
    ISBN: 9781847554185
    Series Statement: Issn Series
    DDC: 547.05
    Language: English
    Note: Organometallic Chemistry -- Contents -- 1 Theoretical Organometallic Chemistry -- 1 Introduction -- 2 s-Block Metals -- 2.1 Structural and Spectroscopic Studies -- 2.2 Mechanistic Studies -- 3 p-Block Metals -- 3.1 Structural and Spectroscopic Studies -- 3.2 Mechanistic Studies -- 4 d- and f-Block Metals -- 4.1 Structural and Spectroscopic Studies -- 4.2 Mechanistic Studies -- References -- 2 Group 1: The Alkali and Coinage Metals -- 1 Alkali Metals -- 1.1 Introduction -- 1.2 Alkyl Derivatives -- 1.3 Alkenyl, Allyl, Vinyl, Alkynyl and Related Derivatives -- 1.4 Aryl Derivatives -- 1.5 Cyclopentadienyl and Related Derivatives -- 2 Copper, Silver and Gold -- 2.1 Introduction -- 2.2 Copper Compounds -- 2.3 Silver Compounds -- 2.4 Gold Compounds -- References -- 3 Group 2 (Be-Ba) and Group 12 (Zn-Hg) -- 1 Scope and Organisation of the Review -- 2 Group 2 -- 3 Group 12 -- References -- 4 Scandium, Yttrium and the Lanthanides -- 1 Introduction -- 2 New Compounds - Structure and Reactivity -- 2.1 Cp Compounds -- 2.2 Substituted Cp Ancillaries -- 2.3 Cp* Chemistry -- 2.4 Donor Cp Chemistry -- 2.5 Indene Chemistry -- 2.6 Linked Cp Chemistry -- 2.7 Naphthalide Complexes -- 2.8 COT Chemistry -- 2.9 Miscellaneous Ancillary Ligands -- 3 Polymerization Catalysis -- 4 Applications to Organic Synthesis -- 5 Theoretical and Spectroscopic Studies -- 5.1 Computational Studies -- 5.2 Spectroscopic Studies -- 5.3 Gas Phase Chemistry -- References -- 5 Carboranes, Including Their Metal Complexes -- 1 Introduction -- 2 Theoretical Chemistry -- 3 Carboranes -- 3.1 {CB9} and {CB11} -- 3.2 {C2B2} and {C2B6} and {C2B8} -- 3.3 {C3B8} and {C4B8} -- 3.4 {C6B6} and {C5B7} -- 3.5 {C2B9} -- 3.6 {C2B10} -- 4 Metallacarboranes -- 4.1 {MC2B4} -- 4.2 {MC3B8} -- 4.3 {MC2B9} -- 4.4 {exo-MC2B9} -- 4.5 {MCB10} -- 4.6 {MC2B10} -- 4.7 {exo-MC2B10} -- 5 Complexes with Sn and Si. , References -- 6 Group 13: Boron, Aluminium, Gallium, Indium and Thallium -- 1 Boron -- 1.1 General -- 1.2 Compounds Incorporating the B(C6F5)3 Moiety -- 1.3 Compounds Containing Nitrogen or Phosphorus Atoms -- 1.4 Compounds Containing Oxygen Atoms -- 1.5 Compounds Containing Metal Atoms -- 2 Aluminium -- 2.1 General -- 2.2 Compounds Containing Group 15 Atoms -- 2.3 Compounds Containing Group 16 Atoms -- 2.4 Compounds Containing Another Metal Atom -- 3 Gallium -- 3.1 General -- 3.2 Compounds Containing Group 15 or 16 Atoms -- 3.3 Compounds Containing Another Metal Atom -- 4 Indium -- References -- 7 Group 15: Phosphorus, Arsenic, Antimony and Bismuth -- 1 Phosphorus -- 2 Arsenic, Antimony and Bismuth -- References -- 8 Organic Aspects of Organometallic Chemistry -- 1 Introduction -- 2 Coupling Reactions -- 2.1 Cross-Coupling Reactions -- 2.2 Allylic Substitution -- 3 Carbonylation Reactions -- 3.1 Pauson-Khand and Related Reactions -- 4 Organometaliic Methods of C-C Bond Formation -- 4.1 Metathesis Reactions -- 4.2 Diazo-carbenoid Chemistry -- 4.3 1,2- and 1,4-Addition Reactions -- 4.4 C-H and C-C Bond Activation -- 4.5 Multi-component Cyclisations -- 5 Oxidative and Reductive Processes -- 5.1 Oxidation Reactions -- 5.2 Reduction Reactions -- 6 Lewis Acid Mediated Processes -- 7 Emerging Areas -- 7.1 High-throughput Catalyst Identification -- 7.2 Non-traditional Solvents in Organometallic Transformations -- References -- 9 Metal Carbonyls -- 1 Introduction -- 2 Reviews -- 3 Theoretical, Spectroscopic and General Studies -- 3.1 Theoretical Studies -- 3.2 Spectroscopic Studies -- 3.3 General Studies -- 4 Chemistry of the Metal Carbonyls -- 4.1 Titanium, Zirconium and Hafnium -- 4.2 Vanadium, Niobium and Tantalum -- 4.3 Chromium, Molybdenum and Tungsten -- 4.4 Manganese, Technetium and Rhenium -- 4.5 Iron, Ruthenium and Osmium. , 4.6 Cobalt, Rhodium and Iridium -- 4.7 Nickel, Palladium and Platinum -- 4.8 Copper, Silver and Gold -- 4.9 Carbonyl Complexes Containing Two or More Different Metal Atoms -- References -- 10 Complexes Containing Metal-Carbon σ-Bonds of the Groups Titanium to Manganese, including Carbenes nad Carbynes -- Part I: Group 4 -- References -- Part II: Group 5 -- 1 Reviews -- 2 Alkyl Complexes -- 3 Alkylidene Complexes -- 4 Alkyne Complexes -- 5 Butadiene and Similar Complexes -- 6 Imido Complexes -- 7 Other Complexes -- References -- Part III: Group 6 -- References -- Part IV: Group 7 -- References -- 11 Organo-Transition Metal Cluster Complexes -- 1 Introduction -- 2 General Reviews -- 3 Spectroscopic Studies -- 3.1 IR -- 3.2 NMR -- 3.3 MS -- 3.4 Theory -- 4 Structural Studies -- 5 Large Clusters -- 6 Group 4 -- 7 Group 5 -- 8 Group 6 -- 8.1 Chromium -- 8.2 Molybdenum and Tungsten -- 9 Group 7 -- 9.1 Manganese -- 9.2 Rhenium -- 10 Group 8 -- 10.1 General -- 10.2 Iron -- 10.3 Ruthenium -- 10.4 Osmium -- 10.5 Mixed-metal Clusters Containing Only Group 8 Metals -- 11 Group 9 -- 11.1 Cobalt -- 11.2 Rhodium and Iridium -- 11.3 Mixed-metal Clusters Containing Only Group 9 Metals -- 12 Group 10 -- 12.1 Nickel -- 12.2 Palladium -- 12.3 Platinum -- 13 Group 11 -- 13.1 Copper -- 13.2 Silver -- 13.3 Gold -- 13.4 Mixed-metal Clusters Containing Only Group 11 Metals -- 14 Group 12 -- 15 Mixed-metal Clusters -- 15.1 Group 4 -- 15.2 Group 5 -- 15.3 Group 6 -- 15.4 Group 7 -- 15.5 Group 8 -- 15.6 Group 9 -- 15.7 Group 10 -- 15.8 Clusters Containing Three Different Metals -- References -- 12 Complexes Containing Metal-Carbon σ-Bonds of the Groups Iron, Cobalt and Nickel, including Carbenes and Carbynes -- 1 Reviews and Articles of General Interest -- 2 Metal-Carbon σ-Bonds Involving Group 8, 9 and 10 Metals -- 2.1 The Iron Triad -- 2.2 The Cobalt Triad. , 2.3 The Nickel Triad -- 3 Carbene and Carbyne Complexes of Group 8, 9 and 10 -- References -- 13 Hydrocarbon Transition Metal π-Complexes other than η-C5H5 and η-Arene Complexes -- 1 Introduction -- 2 Reviews -- 3 Complexes Containing Allyls or Monoalkenes -- 3.1 Cr, Mo, W -- 3.2 Fe, Ru, Os -- 3.3 Co, Rh, Ir -- 3.4 Ni, Pd, Pt -- 3.5 Other Metals -- 4 Complexes Containing Unconjugated Alkenes -- 5 Complexes Containing Cyclic Conjugated Alkenes -- 5.1 Cr, Mo, W -- 5.2 Fe, Ru, Os -- 5.3 Other Metals -- 6 Complexes Containing Acyclic Alkenes -- 7 Complexes Containing Alkynes -- 8 Polymetallic Complexes -- 8.1 Bimetallic Complexes -- 8.2 Multimetallic Complexes -- 8.3 Ferrocenyl Containing Complexes -- References -- 14 Transition Metal Complexes of Cyclopentadienyl Ligands -- 1 General Introduction -- 2 Main Group, Lanthanides and Actinides -- 3 Titanium, Zirconium and Hafnium -- 4 Vanadium, Niobium and Tantalum -- 5 Chromium, Molybdenum and Tungsten -- 6 Manganese and Rhenium -- 7 Iron, Ruthenium and Osmium -- 7.1 Ferrocenylphosphine Ligand Chemistry -- 7.2 Ferrocenophanes -- 7.3 Materials -- 8 Cobalt, Rhodium and Iridium -- 9 Nickel, Palladium and Platinum -- References -- Author Index.
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 122 (1985), S. 64-72 
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The extracellular ionized calcium and magnesium requirements for lectin-induced lymphocyte DNA synthesis were measured in a serum-free system. The use of this system permitted measurements of the ionized calcium and magnesium concentrations with ion-selective electrodes. Maximal DNA synthesis was observed at 270 μ ionized calcium and at 100 μ ionized magnesium in phytohemagglutinin-treated lymphocytes. Lymphocyte DNA synthesis was much more sensitive to reduction of external ionized calcium than to reduction of ionized magnesium. In calcium-free medium (ionized calcium 25 μM), DNA synthesis was reduced by 90%, but in magnesium-free medium (ionized magnesium concentration 7 μM) DNA synthesis was reduced by only 30%. Fifty percent of DNA synthesis stimulated by phytohemagglutinin (PHA) and concanavalin A (Con A) was observed at external ionized calcium concentrations of 97 and 43 μM, respectively. When lymphocytes were stimulated with PHA and the external calcium was chelated with EGTA, 50% inhibition of DNA synthesis was observed at 98 μM ionized calcium. This value agreed well with the free calcium required for PHA activation of DNA synthesis (97 μM). Cytoplasmic calcium, measured with the fluorescent probe Quin 2, increased following lectin exposure if the extracellular ionized calcium concentration was greater than 80 μM. No increase in cytoplasmic calcium could be detected in lectin-treated lymphocytes below 80 μM extracellular ionized calcium, although substantial DNA synthesis was sustained.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: We have studied the interactions of dimethyl sulfoxide (DMSO), Giant Cell Tumor (GCT) cell-conditioned medium (GCT CM), and highly purified granulocyte-macrophage colony-stimulating factors (GM-CSF) on the growth and maturation of a highly passaged population of HL-60 cells. DMSO produced dose-dependent inhibition of HL-60 growth in liquid and semisolid media. Growth was partially to completely restored by the addition of GCT CM to cultures. Experiments in which cell volume, cell cycle kinetics, tritiated thymidine (3HTdr) incorporation, cell number, and nitroblue tetrazolium (NBT) reduction were compared during culture indicated that DMSO inhibited the spontaneous increase in cell volume and flow of cells through the cell cycle which occurred in the first day of culture, the increase in 3HTdr incorporation which was detectable by day 2; and the increment in cell counts which occurred by day 3. These effects were opposed by GCT CM. In contrast, the DMSO-induced increase in NBT reduction which occurred by day 6 was not influenced by GCT CM. The major principle opposing DMSO was GM-CSF, since (1) highly purified GM-CSF from GCT cells and recombinant GM-CSF from COS cells transfected with the Mo cell GM-CSF gene overcame greater than 50% of DMSO inhibition; and (2) conditioned media from cells not producing CSF, G-CSF from GCT cells, and recombinant G-CSF from Escherichia coli transfected with the G-CSF gene from 5,637 cells were inactive. DMSO had little or no effect on the elaboration of autostimulatory activity by HL-60 cells. DMSO is a useful agent for inhibiting the spontaneous growth of HL-60 cells and restoring their dependence on GM-CSF, a property which may be mediated through the effects of DMSO on cell cycle kinetics and/or maturation.
    Additional Material: 5 Ill.
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  • 5
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: We have found that GM-CSF and DMSO have antagonistic effects on the proliferation but not maturation of asynchronously growing HL-60 cells such that growth in the presence of both more closely resembles normal hematopoiesis (Brennan et al., J. Cell Physiol. 132:246, 1987). Studies were undertaken to determine whether or not the agents affected the same mitogenic pathway and locus in the cell cycle. HL-60 populations containing at least 90% G1 cells were obtained by centrifugal elutriation, exposed to 100 u/ml recombiniant human GM-CSF and/or 0-1.25% DMSO, and phosphoprotein changes quantified on autoradiograms of [32P]-orthophosphate-labeled cell proteins separated by giant 2-D gel electrophoresis. Results were correlated with (1) intracellular pH, determined by measurement of BCECF fluorescence; (2) [32P]-orthophosphate uptake; (3) cell cycle progression, determined by flow quantitation of DNA content in mithramycin or propidium iodide-stained cells; and (4) growth, determined by cell volume and concentration. GM-CSF stimulated and DMSO inhibited the GM-CSF-stimulated phosphorylation of 1 protein (∼65 kDa, p.i. 5.6) within 2 min of exposure. These effects were sustained through G1 not associated with changes in intracellular pH, and preceded similar antagonistic effects on phosphate uptake (15-30 minutes), cell volume change (16-24 hr), and cell concentration increase (28-32 hr). GM-CSF accelerated and DMSO inhibited G1 to S transit with the most marked antagonism observed in the second cycle following synch onization (28 to 40 hrs). Cell maturation (morphology, NBT reduction) was dominated by DMSO and not antagonized by GM-CSF. We have identified p65 as the nuclear intermediate filament protein, lamin B, on the basis of its locus on gels and its binding of a monoclonal antibody to intermediate filaments and antiserum to human lamin B on immunoblots. These studies suggest that at least part of the GM-CSF-DMSO antagonism is exerted through the same mitogenic pathway, that a major locus of cytokinetic effect is on G1 to S transit, and that nuclear envelope protein phosphorylation is an important early event.
    Additional Material: 5 Ill.
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