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  • 1990-1994  (2)
  • 1994  (2)
Material
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  • 1990-1994  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 40 (1994), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The 7/γ/δTlymphocytes represent a minority of T lymphocytes in human peripheral blood. Although there have been reports of reactivity against (myco-) bacterial antigens and heat shock proteins, their function and antigen specificity remain ill defined. The biological role of γ/δ T cells has been related to functions within the ‘first line of defense’. Similar to γ/δ T lymphocytes in the T-cell compartment, CD5 positive B cells represent a small subset of B lymphocytes, which is thought to be involved in the maintenance of natural immunity and autoimmunity. We provide evidence for the cooperation of γ/δ T cells and CD5 positive B cells in the proliferative response of γ/δ T cells to bacterial antigens. Our data indicate a strong proliferation of Vγ9δ2 T cells in response to gram-negative bacteria, which is dependent upon the presence of CD5 positive B-CLL or activated normal B lymphocytes. The selective stimulation of the Vγ9δ2 subpopulation by gram-negative bacteria is also confirmed by analysis of different γ/δ T-cell clones. The interaction of γ/δ T cells with activated B cells and gram-negative bacteria may prove to be a useful model similar to the expansion of the Vγ9δ2 subpopulation during development. In addition, our in vitro system should provide new insights in the interaction of CLL B cells with the immune system and the antigens recognized by γ/δ T cells.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical microbiology & infectious diseases 13 (1994), S. 25-28 
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 55-year-old male underwent orthotopic liver transplantation for sub-fulminant hepatitis B/delta infection superimposed on probable genetic hemochromatosis with early cirrhosis. Pre-operatively, he demonstrated serologic evidence of cytomegalovirus reactivation and developed cytomegalovirus viremia when ganciclovir was discontinued post-operatively. His post-operative course was complicated by chronic ductopenic rejection, biliary anastomotic leak, and persistent confusion and malaise. At the time of laparotomy for repair of the bile leak, nodular peritoneal lesions were noted, with biopsy and culture showing angioinvasiveAspergillus fumigatus. Despite administration of amphotericin B, the patient continued to have culture-confirmed evidence of infection at follow-up peritoneoscopy. Oral itraconazole was begun, but the patient died of liver failure secondary to progressive ductolpenic rejection. At autopsy,Aspergillus organisms were seen in histologic sections taken from the small bowel; there was no evidence of disseminated disease.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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