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  • 1
    ISSN: 1437-7772
    Schlagwort(e): Stage III non-small cell lung cancer ; CDDP ; VP-16 ; Conventional radiotherapy ; Concurrent chemoand radiotherapy ; Accelerated proliferation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Background. This study was designed to evaluate the feasibility and efficiency of giving cisplatin, etoposide, and OK432 concurrently with conventional radiotherapy (RTx) for patient's with inoperable stage III, based on the TNM classification according to the International Union against Cancer staging system for lung cancer (1987) non-small cell lung cancer (NSCLC). Methods. From January 1992 to December 1994,31 patients with cytologically or histologically confirmed stage III NSCLC were treated with RTx, to a total dose of 56–64 Gy, with concurrent daily oral administration of etoposide (25mg) and cisplatin (20mg) for 5 days during the third or fourth week from the start of RTx. The subcutaneous injection of 1 or 2 KE of OK-432, three times a week, for the duration of radiotherapy also started from the beginning of RTx. Results. The number of eligible patients was 29 (26 men and 3 women). Their mean age was 66 years (range, 55–77 years). Six patients had an Eastern Cooperative Oncology Group performance status (PS) of 0; 15, 1; 8; 2. Three were stage IIIA, and 26, stage ITIB. Histologically, 2 had adenocarcinoma, 23, squamous cell carcinoma, and 4, large cell carcinoma. In 27 of the 29 patients, the RTx schedule was completed. There were no treatment-related deaths. Grade 4 toxicity (according to World Health Organisation criteria) leukopenia (700/μl was observed in 1 patient. The response rate was 79% and the median survival was 17 months. Survival rates at 1, 2 and 3 years were 62%, 31%, and 21%, respectively. The local failure rate was 51%. Conclusion. The combination of cisplatin, etoposide, and K-432, given concurrently with conventional RTx is feasible and effective for inoperable stage III NSCLC.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1420-908X
    Schlagwort(e): Key words: Neutrophils — Lipopolysaccharide (LPS) — CD14 — Gamma interferon (IFN-γ) — Tumor necrosis factor alpha (TNF-α)
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract. Objective: Lipopolysaccharide (LPS), a potent and pleiotropic stimulator of immune cells, binds to neutrophils via CD14, but less densely than to monocytes. The present study was designed to investigate whether cytokines modulate LPS binding to neutrophils via CD14.¶Methods: Neutrophils were cultured with LPS after pretreatment with cytokines, interferon-gamma (IFN-γ), tumor necrosis factor-alpha (TNF-α), interleukin-1 alpha (IL-1α), or granulocyte-colony stimulating factor (G-CSF). Binding of LPS and CD14 expression on neutrophils were analyzed by flow cytometry, using anti-LPS and anti-CD14 monoclonal antibodies (mAb).¶Results: LPS alone showed only slight binding to neutrophils, but pretreatment with IFN-γ or TNF-α before LPS exposure markedly increased LPS binding and CD14 expression on the surfaces of neutrophils. The dramatic increase in LPS binding was not seen with IL-1α or G-CSF. Anti-CD14 blocking mAb completely inhibited the binding effect.¶Conclusions: These results demonstrate that IFN-γ and TNF-α enhance LPS binding to neutrophils via CD14, suggesting that the priming effect of cytokines on neutrophils is important for LPS binding.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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