Seong-Jun Choi

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We investigated the occurrence of hepatic veno-occlusive disease (VOD) after allogeneic bone marrow transplantation (BMT) in 241 adults conditioned with busulfan + cyclophosphamide at a single institute and retrospectively compared 186 patients who received oral busulfan (O-Bu group) with 55 patients who received intravenous busulfan (I-Bu group). Various(More)
A reliable source of osteogenic cells is an essential factor for bone tissue engineering. In this study, human-induced pluripotent stem cells (hiPSCs) without an embryoid body step were cultured in macrochanneled poly(caprolactone) (PCL) scaffolds prepared using a robotic dispensing technique, after which osteogenesis was promoted by the addition of(More)
Human adult stem cells are a readily available multipotent cell source that can be used in regenerative medicine. Despite many advantages, including low tumorigenicity, their rapid senescence and limited plasticity have curtailed their use in cell-based therapies. In this study, we isolated CD34/CD73-double-positive (CD34(+)/CD73(+)) testicular stromal(More)
We analyzed the clinical significance of the expression of the Fas (CD95) and TNF-related apoptosis-inducing ligand (TRAIL) receptors, the death receptors (DR) 4 and 5, by leukemic blasts in 29 patients with acute myelogenous leukemia (AML). CD95 was positive in 18 patients (62%). The DR4 and DR5 receptors were positive in 20 patients (69%) and 29 (100%),(More)
OBJECTIVE We evaluated the efficacy and toxicity of combined paclitaxel and cisplatin chemotherapy in patients with cancer of unknown primary site (CUP). Efficacy was evaluated in terms of response rate, progression-free survival and overall survival. METHODS Thirty-seven patients with CUP were enrolled between January 2001 and September 2003 at Korea(More)
We investigated the association between the MDR1 C3435T polymorphism and P-glycoprotein function of leukemic blasts as well as clinical outcomes in 200 patients with AML, excluding the M3 subtype. The CC, CT and TT genotype frequencies of the C3435T polymorphism among patients were 71, 93 and 36, respectively. The C3435T polymorphism genotypes did not have(More)
Sixty patients were randomized to receive intravenous busulfan (iBU) either as 0.8 mg/kg, over 2 hours 4 times a day (BU4 arm) or 3.2 mg/kg, over 3 hours once a day (BU1 arm) in conditioning therapy for hematopoietic cell transplantation. The complete pharmacokinetic parameters for the first busulfan dose were obtained from all patients and were comparable(More)
Allogeneic stem cell transplantation (ASCT) has improved the outcome of acute myelogenous leukemia (AML). To further improve the treatment outcome of ASCT in AML, finding a modifiable prognostic factor is mandatory. We evaluated the effect of CD34(+) cell dose on survival in allogeneic bone marrow transplantation (BMT) from HLA-matched sibling donors for(More)
For refractory and early relapsed AML, this prospective phase II clinical trial evaluated a salvage chemotherapy regimen, which was consisted of continuous infusion intermediate-dose cytarabine (1g/m(2)/day, 24h i.v. infusion x 5), mitoxantrone (12 mg/m(2)/day x 3), and etoposide (150 mg/m(2)/day x 3). We treated 33 patients and 17 (51.5%) achieved CR with(More)
We have designed, built, and tested microfluidic systems capable of transporting individual, preimplantation mouse embryos (100-microm to 150-microm diameter) through a network of channels. Typical channels are 160 to 200 microm deep, 250 to 400 microm wide at the top, and narrower at the bottom (0 to 250 microm wide) due to the fabrication process. In(More)