RESUMO
Cutaneous T cell lymphoma first presenting at the tumor stage is described in three patients, including one with the rarely reported granulomatous mycosis fungoides. The rapid progression and resistance to the currently available treatment modalities seem to characterize this unique form of lymphoma.
Assuntos
Micose Fungoide/patologia , Neoplasias Cutâneas/patologia , Adulto , Idoso , Terapia Combinada , Humanos , Masculino , Pessoa de Meia-Idade , Micose Fungoide/diagnóstico , Micose Fungoide/terapia , Estadiamento de Neoplasias , Neoplasias Cutâneas/diagnóstico , Neoplasias Cutâneas/terapiaRESUMO
Previously we have reported on the production of two sets of human monoclonal antibodies reacting with mouse mammary tumor virus (MMTV) and human mammary tumor virus (HuMTV) cross-reacting antigens. B11 is a monoclonal IgG generated by the human-human hybridoma technique using axillary lymph node of breast cancer patients. 4.6/6 is a monoclonal IgG established by the mouse-human hybridoma procedure using peripheral blood lymphocytes of a healthy investigator working with the breast cancer cell line T47D which secretes HuMTV antigens. Two anti-idiotypic (Id) antibodies were produced by immunizing rabbits with B11 or 4.6/6. Following exhaustive adsorption on unrelated human-Ig, fetal calf serum and purification on B11 or 4.6/6 affinity columns, the anti-Id antibodies were shown to react specifically with their respective Id. The binding of these anti-Id antibodies to the respective Id was specifically inhibited by prior incubation of the Id with MMTV and/or HuMTV antigens. Rabbit anti-B11 and rabbit anti-4.6/6 anti-Id antibodies were employed to immunize female C3Heb mice. Following immunizations, humoral and cellular immune responses to MMTV-related antigens could be demonstrated. The sera of the mice contained anti-MMTV antibodies and delayed-type hypersensitivity was specifically expressed when irradiated cells of the Mm5MT line (which carry surface MMTV antigens) were injected. Our results support the notion that anti-Id antibodies harboring the internal image can immunize animals against tumor cells bearing on their surface viral-associated antigens.