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  • Cytotoxic T lymphocytes  (1)
  • Hematopoietic growth factors  (1)
  • High grade Non Hodgkin's lymphoma  (1)
  • Springer  (3)
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  • Springer  (3)
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  • 1
    ISSN: 1432-1440
    Keywords: Key words Gene Therapy ; Vaccination ; Melanoma ; Cytotoxic T lymphocytes ; Tumor-infiltrating lymphocytes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  In a phase I trial designed to study a vaccine composed of autologous tumor cells and interleukin-2 gene transfected fibroblasts we analyzed lymphocytes infiltrating the vaccination site (VIL) in two melanoma patients. Functional studies demonstrated that numbers of MHC class I restricted cytotoxic T cells directed against the autologous tumor had increased at the immunization site in both cases. Analysis of the variability of T cell receptors (TCR) in the VIL of one patient revealed that the cytotoxic T lymphocytes consisted of a predominant population of TCRBV21S3+ T cells. Enrichment of this subpopulation to more than 99% by specific anti-TCRBV21S3 monoclonal antibody linked immunomagnetic beads and sequencing of the TCR-β chain disclosed exactly the same V-D-J junctional sequence in all eight TCRBV21 transcripts from these VIL. The identical sequence was also detected in all eight TCRBV21 transcripts from the patient’s tumor-infiltrating lymphocytes, indicating that the same CTL clone had infiltrated the tumor, circulated in the peripheral blood, and was amplified at the vaccination site. The TCRBV21S3+ T cells were also found to display an MHC class I restricted cytotoxic activity specifically directed against the autologous tumor cells. At the beginning of treatment these cells were undetectable at the vaccination site and delayed-type hypersensitivity testing was negative, contrasting with the positive results after therapy. Thus it is likely that vaccination with autologous tumor cells plus interleukin-2 gene transfected allogeneic fibroblasts had induced not only local accumulation but also an increase in the frequency of circulating tumor specific CTL.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0584
    Keywords: High grade Non Hodgkin's lymphoma ; Upfront therapy ; Salvage therapy ; MACOP-B
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Between Nov. 1985 and Nov. 1988, sixty-three patients with high grade malignant (hg) and intermediate grade malignant (img) Non Hodgkin's Lymphoma (NHL) were treated with MACOP-B (methotrexate, doborubicin, cyclophosphamide, vincristine, prednison and bleomycin). Thirty-seven patients received MACOP-B as an upfront treatment modality, whereas twenty-six patients had relapsed disease and received MACOP-B as a salvage protocol. Four weeks after termination of therapy, 75% of patients with de novo NHL and 72% of the patients with relapsed NHL were in complete remission (CR). In the group of newly diagnosed NHL, 22% achieved partial remission (PR) and 3% no change (NC), whereas in the group with relapsed disease 14% had PR and 14% had progressive disease (PD). At a medium follow-up of 12 months (range 1 month to 33 months), 74% of patients with de novo NHL continued to be in CR whereas the continuous CR rate in patients with relapsed disease was 35%. Overall survival after 30 months of observation for the patient group with de novo NHL was 75% and 40% for patients with relapsed NHL. The mean duration for completion of the projected 12 chemotherapy cycles, given in weekly intervals, was 12.9 and 13.5 weeks in upfront or salvage therapy, respectively. With low incidence of major toxicities, application of drugs on an outpatient basis, and high efficacy, MACOP-B shows substantial advantges for therapy of de novo and relapsed NHL.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 58 (1989), S. 173-179 
    ISSN: 1432-0584
    Keywords: Hematopoietic growth factors ; Clinical application
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Colony-stimulating factors (CSFs) have entered the clinical arena. Several investigators have explored, in first clinical phase I studies, different routes of administration to define the optimum biological dose, maximum tolerated dose, toxicity, and pharmacokinetics of these reagents. It has been demonstrated that recombinant human (rh) granulocyte-macrophage CSF (GM-CSF) and granulocyte CSF (G-CSF) can be safely administered over a broad dose range to increase number of circulating granulocytes in man. More recently, GM-CSF and G-CSF have been involved in phase Ib/II studies to assess the granulopoietic responses of patients with granulocytopenia due to various underlying disease states including myelodysplastic syndrome, aplastic anemia, cyclic neutropenia, Kostmann's syndrome, and the acquired immuno-deficiency syndrome. Both factors were also investigated with respect to their potential to prevent chemotherapy induced granulocytopenia or to accelerate recovery from that condition. The short-term effects of rh GM-CSF after autologous bone marrow transplantation for various solid tumors and lymphoid malignancies were assessed as well. In this article we will focus on recent results that have emerged from in vivo studies utilizing CSFs.
    Type of Medium: Electronic Resource
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