@article{WillBlankRoellinghoffetal.1992,
  author    = {Will, Antje and Blank, Christine and R{\"o}llinghoff, Martin and Moll, Heidrun},
  title     = {Murine epidermal Langerhans cells are potent stimulators of an antigen-specific T cell response to Leishmania major, the cause of cutaneous leishmaniasis},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45872},
  year      = {1992},
  abstract  = {Cutaneous leishmaniasis is initiated by the bite of an infected sandfly and inoculation of Leishmania major parasites into the mammalian skin. Macrophages are known to playa central role in the course of infection because they are the prime host cells and funetion as antigen-presenting eells (APC) for induetion of the eell-mediated immune response. However, in addition to maerophages in the dermis. the skin eontains epidermal Langerhans eells (LC) which ean present antigen (Ag) to T cells. Therefore, using a murine model of cutaneous leishmaniasis, we analyzed the ability of epidermal cells to induce a T eell response to L.major. The results demonstrated that freshly isolated LC, but not cuItured LC, are highly active in presenting L.major Ag in vitro to T cells from primed mice and to a L.major-specific T cell clone. Furthermore, freshly isolated LC had the ability to retain L.major Ag in immunogenic form for at least 2 days. Their efficiency was much greater than that of irradiated spleen cells, a standard population of APC. LC stimulated both T cell proliferation and production of the Iymphokines interleukin (IL)-2 and IL-4. The response was Ag specific and could be induced by lysate of L. major parasites and by live organisms. The data suggest that epidermal LC are important APC in eutaneous leishmaniasis. They may perform a critical funetion by eapturing L.major Ag in the skin and presenting it either to quiescent T eells circulating through the draining lymph node or locally to T effector cells infiltrating the cutaneous lesion.},
  subject      = {Immunologie},
  language  = {de}
}
@article{MollFuchsBlanketal.1993,
  author    = {Moll, Heidrun and Fuchs, Harald and Blank, Christine and R{\"o}llinghoff, Martin},
  title     = {Langerhans cells transport Leishmania major from the infected skin to the draining lymph node for presentation to antigen-specific T cells},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-46023},
  year      = {1993},
  abstract  = {No abstract available},
  subject      = {Immunologie},
  language  = {en}
}
@article{BlankFuchsRappersbergeretal.1993,
  author    = {Blank, Christine and Fuchs, Harald and Rappersberger, Klemens and R{\"o}llinghoff, Martin and Moll, Heidrun},
  title     = {Parasitism of epidermal Langerhans cells in experimental cutaneous leishmaniasis with Leishmania major},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-45850},
  year      = {1993},
  abstract  = {Murine epidermal Langerhans cells (LC) have been demonstrated to stimulate a vigorous T cell response to Leishmania major, a cause of human cutaneous leishmaniasis. It was therefore of interest to analyze whether LC can take up viable parasites. Epidermal cells were obtained from mouse ear skin for incubation with L. major and subsequent detection of intracellular parasites by cytochemistry. Freshly isolated LC, but not cultured LC, phagocytosed L. major and the uptake was inhibited by antibodies to the complement receptor type 3. Electron microscopic studies revealed the presence of viable amastigotes within Le. Moreover, with double-Iabeling techniques, L. major-containing LC could also be detected in infected skin. The results demonstrate that LC can internalize L. major. Since the number of organisms per infected LC remained consistently low, the prime task of LC may not be the promotion of parasite spreading but the presentation of L. major antigen to T cells and, thus, the regulation of the cellular immunity during cutaneous leishmaniasis.},
  language  = {en}
}