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  • Articles: DFG German National Licenses  (3)
  • Celluläre Antikörperbildung  (1)
  • Cytotoxic antisera to lymphocyte antigens  (1)
  • Immunglobuline  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Research in experimental medicine 157 (1972), S. 87-94 
    ISSN: 1433-8580
    Keywords: Cellular Antibody-Formation ; Parabiosis ; Plaque-Technique ; Regulation of the Immune Response ; Celluläre Antikörperbildung ; Parabiose ; Immunregulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Untersuchungen sollten zeigen, inwieweit bei Parabionten die Immunantwort gegenseitig beeinflußt werden kann. — NMRI-Mäuse wurden zu unterschiedlichen Zeitpunkten mit Hammelerythrocyten (HE) sensibilisiert und parabiontisch vereinigt. Durch Auszählen Antikörper-bildender Milzzellen wurde die Stärke der Immunantwort bestimmt, wobei die Plaque-Technik angewandt wurde. Durch Sensibilisieren eines einzigen Partners vor der Parabiose sollte gezeigt werden, ob einzelne Antikörper-bildende Zellen oder HE durch die Anastomose übertreten. Die Ergebnisse zeigen eine gegenseitige Beeinflussung der Immunantwort. Da einzelne Antikörper-bildende Zellen oder HE nicht übertreten, ist dieser Effekt allein zirkulierenden Antikörpern zuzuschreiben. Sie führen zu einer Hemmung der Immunantwort insbesondere bei Tieren, die kurz vor der Parabiose sensibilisiert worden sind. Die Ergebnisse bestätigen das Vorliegen eines Rückkoppelungsmechanismus und beweisen darüber hinaus, daß die Unterdrückung durch direktes Einwirken auf die Antikörper-bildenden Zellen erfolgt.
    Notes: Summary This work was designed to show whether antibodies can influence the immune responseafter sensitization. — NMRI-mice were sensitized with sheep red blood cells (SRBC) and joined by parabiosis. After different intervals the immune response was examined by detection of single antibody-forming cells using the plaque-technique. For demonstration of a possible transfer of SRBC or antibodyproducing cells only one parabiont was sensitized. The results show a mutual influence of the immune response of both parabionts. Because there is no transfer of SRBC or antibody-producing cells through the communication the influence is due to passing antibodies. Those antibodies inhibit the immune response more when animals are sensitized few days before parabiosis. The suppression of the antibody-formation in animals sensitized before parabiosis is an indication for a direct interaction of antibodies with cells producing them.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Research in experimental medicine 160 (1973), S. 69-79 
    ISSN: 1433-8580
    Keywords: Subcellular rat lymphocyte fractions ; Cytotoxic antisera to lymphocyte antigens ; Stimulatory antisera to lymphocyte antigens ; Antigenic determinants of lymphocyte membranes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Antisera against subcellular rat lymphocyte fractions, an unfractionated lymphocyte homogenate, a purified microsomal fraction and a soluble cytoplasmic fraction were produced in rabbits. The highly cytotoxic antisera against the microsomal fraction exhibited only a low stimulatory activity. The antisera against the cytoplasmic fraction were less cytotoxic, but stimulated the DNA-synthesis in rat lymphocyte cultures very effectively. Antisera against the ULH showed high cytotoxic titers and strong stimulatory properties. The cytotoxic activity could be removed by absorption with the ULH and the microsomal fraction; the stimulatory activity was reduced only by absorption with the ULH. Absorption with the cytoplasmic fraction was ineffective. In immunofluorescence studies and with the immunoferritin technique it could be demonstrated that the microsomal as well as the soluble cytoplasmic antigen is a constituent of the lymphocyte surface membrane which is distributed in patches on the membrane in different patterns. The immunofluorescence studies indicate that thymus cells lack some antigenic determinants which are present on membranes of lymph node and spleen cells.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 55 (1977), S. 903-906 
    ISSN: 1432-1440
    Keywords: Lymphozyten ; Liquor ; Immunglobuline ; Lymphocytes ; Cerebrospinal fluid ; CNS-disorders ; Immunoglobulins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In 73 patients with variable CNS-disorders Slg-lymphocytes and RF-lymphocytes originating from CF were characterized by demonstration of surface markers. In the CF the Slg-lymphocytes were increased in comparison to the blood whereas the RF-lymphocytes generelly were decreased. Patients suffering from acute or chronic inflammatory diseases had significantly more Slg-lymphocytes while RF-lymphocytes were significantly decreased in those patients as well as in patients with malignancies. A correlation between the number of Slg-lymphocytes and immunoglobulin-levels was not seen. The respective data in blood did not follow the changes in CF. The results suggest a prevailing stimulation of the humoral immune system of the CNS during inflammatory diseases.
    Notes: Zusammenfassung Bei 73 Patienten mit ZNS-Erkrankungen wurden im Liquor SIg-Lymphozyten und RF-Lymphozyten durch Nachweis von Oberflächenmarkern charakterisiert. Im Vergleich zu den Werten im Blut waren generell die SIg-Lymphozyten vermehrt, wogegen die RF-Lymphozyten vermindert waren. Darüber hinaus hatten Patienten mit akuten und chronischen Entzündungsprozessen vermehrt SIg-Lymphozyten. RF-Lymphozyten waren außer bei diesen Erkrankungen auch bei Malignomen erniedrigt. Ein Zusammenhang zwischen den Immunglobulinspiegeln und dem Gehalt an SIg-Lymphozyten im Liquor war nicht nachweisbar. Die erwähnten Verschiebungen lassen sich im Blut nicht nachweisen. Die Ergebnisse sprechen für eine vermehrte Stimulierbarkeit des humoralen Immunsystem im ZNS bei den erwähnten Erkrankungen.
    Type of Medium: Electronic Resource
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