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  • 1985-1989  (6)
  • Inorganic Chemistry  (4)
  • Natural killer cells  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Natural killer cell activity against a thymoma cell line thy 121 in bone marrow transplant recipients (1986)
    Springer
    Journal of molecular medicine 64 (1986), S. 125-130 
    Details
    ISSN: 1432-1440
    Keywords: Bone marrow transplantation ; Natural killer cells ; Interferon ; Cycloporin A ; Graft-versus-host disease ; Methotrexate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Twenty-one patients with acute and chronic leukemia or severe aplastic anemia were studied for NK activity against a thymoma cell line (Thy 121) before and after allogeneic bone marrow transplantation. The means of the pretransplant and post-transplant levels did not differ from the mean of 134 NK determinations in 67 healthy donors. There was no correlation between pretransplant NK levels and the appearance of graft-versus-host disease. Three weeks following bone marrow transplantation, pretransplant NK levels were observed. The sensitivity of NK cells to interferon was the same as in normal donors both before and after bone marrow transplantation. In contrast to methotrexate, cyclosporin A inhibited NK activity in patients and controls in vitro. In vivo cyclosporin A treatment, however, did not decrease NK levels in bone marrow recipients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01732635
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  • 2
    Electronic Resource
    Electronic Resource
    Recombinant interferon alpha 2 stimulation of target-binding by natural killer cells (1986)
    Springer
    Journal of molecular medicine 64 (1986), S. 1036-1040 
    Details
    ISSN: 1432-1440
    Keywords: Sinlge cell assay, modified ; Natural killer cells ; Interferon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Even though the enhancement of the lyitc capacity and the kinetics of lysis of natural killer cells (NK) by interferon has been well documented, an increase of the target-effector cell binding percentage is still disputed. We, therefore, modified the Grimm-Bonavida single-cell assay so that 400 to 600 cells per individual determination could be reliably evaluated. Using this assay, which makes possible separate determination of effector-target cell binding and target lysis, we demonstrated that, in addition to lytic capacity, target-effector cell binding is also increased by preincubating NK with 100 to 1,000 IU interferon alpha 2 per 106 cells. Our data indicate that interferon alpha 2 induces pre-NK cells to bind target cells and that it activates these pre-NK cells to kill the targets.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01757211
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    New Prophosphatranes: Novel intermediates to five-coordinate phosphatranesDedicated to Professor Kurt Issleib on his 70th Birthday (1989)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 578 (1989), S. 75-80 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Neue Prophosphatrane: Neuartige Zwischenstufen auf dem Wege zu pentakoordinierten PhosphatranenDie Reaktion von N(CH2CH2NHMe)3 mit P(NMe2)3 oder P(NMe2)2Cl ergibt die Phosphatranvorstufe N(CH2CH2NMe)3P. Dessen Umsetzung mit Oxydationsmitteln ode Elektrophilen führt zu nicht-transannular-stabilisierten, tetrakoordinierten Derivaten N(CH2CH2NMe)3P—X, (X: O, S, Se, N3Ph, NPh, CS2, 1/2 PtCl2). Die Strukturen der beschriebenen Verbindungen werden anhand ihrer 1H-, 13C- und 31P-NMR-Daten diskutiert.
    Notes: The reaction of N(CH2CH2NHMe)3 with P(NMe2)3 or P(NMe2)2Cl yields the phosphatrane precursor N(CH2CH2NMe)2P,4. With oxydizing agents or electrophiles 4 is converted to the untransannulated four-coordinated derivatives N(CH2CH2NMe)3P—X, (X: O, S, Se, N3Ph, NPh, I CS2, 1/2 PtCl2). The structures of the compounds described are discussed by 1H, 13C, and 31P n.m.r. data.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19895780109
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  • 4
    Electronic Resource
    Electronic Resource
    C-metallierte Aminophosphine 1. α-lithiierte DimethylaminophosphineProfessor Marianne Baudler zum 65. Geburtstage am 27. April 1986 gewidmet (1986)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 535 (1986), S. 47-55 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: C-metalated Aminophosphines. 1. α-lithiated DimethylaminophosphinesThe preparation of dimethylaminophosphines of the general formula Z—CH2—Pdma2 and (Z—CH2)2Pdma, respectively (Z = (CH3)3Si, C6H5), their monometalation and the reactions of these metalated species with chlorosilanes, bis-(dimethylamino)-chlorophosphine and trimethylsilylmethyl-dichlorophosphine are described. The n.m.r. spectra of the prepared compounds are discussed.
    Notes: Es wird die Darstellung von Dimethylaminophosphinen der allgemeinen Formulierung Z—CH2—Pdma2 bzw. (Z—CH2)2Pdma, deren Monolithiierung zu Z—CH(Li)—Pdma2 bzw. Z—CH(Li)—P(dma)—CH2—Z (Z = (CH3)3Si, C6H5) und die Reaktionen dieser lithiierten Spezies mit Chlorsilanen sowie Bis-(dimethylamino)-chlorphosphin und Trimethylsilylmethyldichlorphosphin beschrieben. Die NMR-Daten der dargestellten Verbindungen werden diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19865350407
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  • 5
    Electronic Resource
    Electronic Resource
    Über die Cycloaddition von Dithiocyan und Trithiocyan mit Hexafluoraceton und Folgeprodukte aus der Spaltung der Schwefel-Schwefel-Bindung mit elementarem Chlor im Dithiocyan-Hexafluoraceton-AdduktProfessor Gerhard Gattow zum 60. Geburtstage am 6. Februar 1986 gewidmet (1986)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 532 (1986), S. 131-136 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cycloaddition of Dithiocyanogen and Trithiocyanogen with Hexafluoroacetone and Products of the Cleavage of the Sulfur-Sulfur Bond in Dithiocyan-Hexafluoroacetone Adduct by Elemental ChlorineThe reaction of dithiocyanogen and trithiocyanogen with hexafluoroacetone (HFA) leads to the cycloaddition products (SCN)2 · 4 HFA 1 and S(SCN)2 · 4 HFA 2. These are the first reactions of (SCN)2 and S(SCN)2 without cleavage of the S - S bonds. Elemental chlorine cleaves in 1 the S—S bond and 3 is formed. In 3 the chlorine atom can be replaced by the rests  - CN 4, (C6H11)2N -  5, and n-C4H9- 6. 6 eliminates one molecule of HFA by warming up and the four-membered ring 7 is formed. The compounds were characterized on the basis of mass and nmr spectra.
    Notes: Die Reaktion von Dithiocyan und Trithiocyan mit Hexafluoraceton (HFA) führt zu den Cycloadditionsprodukten (SCN)2 · 4 HFA 1 und S(SCN)2 · 4 HFA 2. Es sind die ersten Reaktionen des (SCN)2 und S(SCN)2, die nicht unter Spaltung der S—S-Bindungen verlaufen. Durch elementares Chlor wird 1 an der S—S-Bindung gespalten und es entsteht 3. In 3 kann das Chloratom durch die Reste  - CN 4, (C6H11)2N -  5 und n-C4H9- 6 ersetzt werden. Beim Erwärmen verliert 6 ein Molekül HFA und es entsteht der viergliedrige Ring 7. Die Verbindungen wurden anhand ihrer Massen- und NMR-Spektren eindeutig charakterisiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19865320118
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  • 6
    Electronic Resource
    Electronic Resource
    Reaktion des aktivierten 1,2-Diphosphinobenzens mit Diphenylcarbodiimid (1985)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 529 (1985), S. 216-221 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of Activated 1,2-Diphosphinobenzene with Diphenylcarbodiimide.The reaction behaviour of 1,2-(Ptms2)2C6H4 and 1,2-(PHLi)2C6H4 towards Ph—N=C=N—Ph leads to phosphaguanidino derivatives of 1,2-diphosphinobenzene and 2-(phenyltrimethylsilylamino)-3-trimethylsilyl-1,3-benzodiphosphole. The structure of the compounds are discussed on the basis of their n.m.r. spectra.
    Notes: Die Umsetzungen von Tetrakis(trimethylsilyl)-1,2-diphosphinobenzen sowie von 1,2-Di(lithiophosphino)benzen mit Diphenylcarbodiimid führen zu Phosphaguanidino-derivaten des 1,2-Diphosphinobenzens sowie zum 2-(Phenyl-trimethylsilylamino)-3-trimethylsilyl-1,3-Benzodiphosphol. Die Strukturen der dargestellten Verbindungen werden anhand der NMR-Daten diskutiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19855291027
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