We show the results of simulation and experimental study of a 4-telescope zig-zag discrete beam combiner (DBC) for long-baseline stellar interferometry working at the astronomical L band (3 - 4 µm) under the influence of a narrow bandwidth light source. Following Saviauk et al. (2013), we used a quasi-monochromatic visibility-to-pixel matrix (V2PM) for retrieving the complex coherence functions from simulated and experimentally measured power at the output of the device.
View Article and Find Full Text PDFSeventy-four (74) patients with metastatic melanoma were treated with patient-specific vaccines derived from autologous tumor cell lines. Cryopreserved irradiated tumor cells were injected weekly for 3 weeks, then monthly for 5 months. At a median follow up >6 years, the median event-free survival (EFS) was 4.
View Article and Find Full Text PDFPurpose: Determination of potency is a challenging problem for patient-specific products derived from autologous cells. For several years, we have been investigating the safety and therapeutic potential of patient- specific vaccines derived from short-term autologous cell lines. We investigated whether clinical potency of these vaccines could be determined by retrospective correlation between the numbers of cells injected (quantity of tumor antigens) and clinical outcome.
View Article and Find Full Text PDFPurpose: The potential for therapeutic use of tumor-infiltrating lymphocytes (TIL), as adoptive cellular therapy has been touted for many years with some encouraging reports in patients with metastatic melanoma.
Materials And Methods: We previously described methodologies for TIL production and phenotypic characterization of TIL generated in our laboratory between 1991 and 1995 in semipermeable bags and between 1996 and 2000 in bioreactors. Patients treated in the earlier era were to have received a hybrid bolus and a 12-hour continuous infusion of interleukin (IL)-2 (total, 48 MIU), while in the latter era 4 days of interferon- alpha preceded the TIL and IL-2; which was given by a hybrid schedule that included bolus and 72- hour continuous IL-2 (total, 96 MIU).
Aim: We previously reported the laboratory methodology for producing patient-specific irradiated autologous tumor-cell products derived from short-term cultured tumor cells. We attempted to determine the feasibility, safety, and clinical effects of autologous tumor vaccine-derived sarcomas.
Patients And Methods: Efforts were made to establish tumor cell lines in tissue culture with expansion to 100 million cells for patients who were candidates for therapy.
Aim: We previously reported the laboratory methodology for producing patient-specific irradiated autologous tumor-cell products derived from short-term cultured tumor cells from resected renal cell carcinoma, and described preliminary clinical results. In this study, we report the final clinical results and efforts to define vaccine potency on the basis of clinical outcome for these 25 patients with advanced renal cell carcinoma.
Materials And Methods: Approximately 10(8) cells from successful short-term cell lines were irradiated, frozen in aliquots of 10(7) cells, then thawed and administered subcutaneously (s.
Objective: The Cancer Biotherapy Research Group conducted a clinical trial to verify encouraging reports of antitumor activity of autolymphocyte therapy.
Patients And Methods: Patients with a variety of advanced solid malignancies underwent an initial leukapheresis procedure to collect about 5 x 10(9) autologous lymphocytes that were stimulated in vitro for 3 days with anti-CD3 monoclonal antibody in the presence of indomethicin and cis-retinoic acid to obtain media that was frozen in aliquots. This media contained significant amounts of tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta, interferon-gamma, and IL6, but no IL-2.
Objective: We established short-term cultures of pure tumor cells for use as autologous tumor cell vaccines in an effort to study the effects of patients-specific immunotherapy.
Patients And Methods: Surgically resected fresh tumor was obtained from patients with metastatic cancer. Successful tumor cell lines (5 x 10(7)) were expanded to 10(8) cells, irradiated, and cryopreserved for clinical use.