The flux activities of de novo and salvage purine synthesis were compared in rat hepatoma 3924A cells in various growth phases. The initial rate assays of [I4C]adenine, ("C]hypoxanthine, and |"C]guanine incorporation yielded Michaelis-Menten kinetics with A'msof 5, 7, and 7 #tM,respectively. After replating plateau phase cells in lag and log phases the activity of purine de novo pathway increas...

We present a case of leptomeningeal metastases in a 30-year-old man with an extragonadal germ cell tumor. The patient was referred to our hospital for treatment of an occipital brain metastasis. This lesion was resected, followed by whole brain radiotherapy and further chemotherapy, and a temporary complete remission was achieved. However, leptomeningeal recurrence developed, and despite salvag...

A 35-year-old woman underwent laparoscopic radical hysterectomy, pelvic lymphadenectomy and ovarian transposition for stage IB2 cervical adenocarcinoma. She received adjuvant concurrent chemoradiation for poor pathologic risk factors but had tumor recurrence 20 months after the surgery. Transposed ovaries were uninvolved in the recurrence and progression. Salvage chemotherapy and radiotherapy w...

A 76-year-old Japanese woman presented to our hospital with anorexia. Two years before, she was diagnosed with non-Hodgkin's lymphoma and had received ten cycles of systemic chemotherapy. After salvage chemotherapy with bendamustine and rituximab (B-R), bone marrow suppression had lasted >3 months. Esophagogastroscopy revealed polynesic white protrusions in the mid-esophagus. These lesions were...

A 34-year-old man presented to the hospital with right-sided headache. He was diagnosed with GBM. He underwent resection of the tumor with placement of carmustine impregnated wafers. Then he underwent adjuvant chemotherapy with temozolamide. Before the completion of chemotherapy he had a recurrence. He underwent re-resection with placement of carmustine impregnated wafers. Subsequently he had e...

High-dose chemotherapy supported by autologous stem cell support/transplantation (HDT/ASCT) has been a standard of care over the last two decades in patients with relapsed or refractory(R/R) diffuse large B-cell lymphoma (DLBCL), which is sensitive to salvage chemotherapy. HDT/ASCT for high-risk DLBCL in upfront setting remains controversial, so it is not recommended for clinical practice. Vari...

BACKGROUND To evaluate the tolerance and efficacy of the combination of paclitaxel and gemcitabine as salvage treatment in patients with advanced non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS Forty-nine patients with measurable NSCLC (PS 0-1: 80%; stage IV: 84%) who progressed or failed first-line chemotherapy were enrolled. Prior chemotherapy was cisplatin-based with (n = 20) or w...

BACKGROUND Approximately 80% of patients with advanced germ cell tumors (GCTs) can be cured with cisplatin-based chemotherapy. Patients with poor-prognosis disease have a cure rate of only 50%, whereas patients with first relapse have only a 25% chance of prolonged survival and potential cure following standard therapy. High-dose chemotherapy (HDC) is being investigated in patients with GCTs to...

BACKGROUND There is controversy regarding palliative chemotherapy for large cell neuroendocrine carcinoma (LCNEC). We evaluated whether advanced LCNEC should be treated similarly to small cell lung cancer (SCLC) or non-small cell lung cancer (NSCLC). PATIENTS AND METHODS The clinical reports and tumor specimens of 45 consecutive patients who were diagnosed with advanced LCNEC were reviewed. T...

BACKGROUND Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a novel drug delivery system able to induce regression of peritoneal metastasis (PM) in the salvage situation. The aim of this study was to determine the clinical characteristics, tumor histology, and extent of disease of the patients having undergone cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy ...