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Sohn H, Kim S, Ryu J, Oh S, Moon D, Oh Y, Shim T, Kim W, Suh C, Lee J. [18F]fluorothymidine (FLT) PET after 3 days of gefitinib treatment and tumor response in non-small cell lung cancer (NSCLC). J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.13031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
13031 Background: FLT has been developed as a PET tracer for imaging tumor proliferation. We evaluated whether FLT-PET could predict tumor response only after 3 days of gefitinib treatment. Methods: Nonsmokers with adenocarcinoma of the lung were eligible for this study. FLT-PET was performed at 1 day before and 3 days after the start of gefitinib (250 mg/d) therapy. The maximum standardized uptake value (SUVmax) of the main lung mass was measured, and changes in tumor SUVmax were calculated. After 6 weeks of therapy, response was assessed by chest CT according to WHO criteria. The cutoff value predicting subsequent CT response was obtained by receiver operating characteristic curve analysis. Results: Between Jun. 2005 and Nov. 2005, 22 patients were enrolled. CT response was partial response in 12 (54%), stable disease in 5 (23%), and progressive disease in 5 (23%). As early as 3 days after the initiation of therapy, significant difference in % changes of tumor SUVmax on FLT-PET was observed between responders and nonresponders (−32% v −2.3%, P = .002) ( Table ). When a reduction of tumor SUVmax ≥ 20% was used as a cutoff value for FLT-PET response, CT response could be predicted with positive and negative predictive values of 100% and 83%, respectively. Time to progression was significantly longer in FLT-PET responders than nonresponders (median 5.1 v 1.4 months, P = .011). Conclusions: Using FLT-PET obtained on days 0 and 3 of gefitinib therapy, the response could be early predicted in patients with NSCLC. [Table: see text] No significant financial relationships to disclose.
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Shim S, Yang W, Koom W, Kim Y, Cho J, Suh C, You S, Kim G. Clinical Significance of Cyclooxygenase-2 in NK/T-Cell Lymphoma, Nasal Type. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lee J, Ku S, Jee B, Suh C, Kim K, Kim S. Outcomes of Multifetal Pregnancy Reduction: Early Transvaginal non-KCl Method is the Best Way. Fertil Steril 2005. [DOI: 10.1016/j.fertnstert.2005.07.924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Choi Y, Jee B, Ku S, Suh C, Moon S, Kim S. Comparison of Follicular Fluid IGF-I, IGF-II, IGFBP-3 and IGFBP-4 Concentrations and Their Ratios Between GnRH Agonist Long Protocol and GnRH Antagonist Multiple-Dose Protocol for Controlled Ovarian Hyperstimulation (COH) in In Vitro Fertilization and Embryo Transfer (IVF-ET). Fertil Steril 2005. [DOI: 10.1016/j.fertnstert.2005.07.828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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105
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Lee JL, Kim S, Kim SW, Kim EK, Kim SB, Kang YK, Lee J, Kim MW, Park CJ, Chi HS, Huh J, Kim SH, Suh C. ESHAP plus G-CSF as an effective peripheral blood progenitor cell mobilization regimen in pretreated non-Hodgkin's lymphoma: comparison with high-dose cyclophosphamide plus G-CSF. Bone Marrow Transplant 2005; 35:449-54. [PMID: 15654353 DOI: 10.1038/sj.bmt.1704798] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The ESHAP (etoposide, methylprednisolone, high-dose cytarabine, and cisplatin) regimen has been shown to be effective as an active salvage therapy for lymphoma. Mobilizing stem cells following ESHAP should decrease time to transplantation by making separate mobilizing chemotherapy (MC) unnecessary, while controlling a patient's lymphoma. We therefore assessed the mobilization potential of ESHAP plus G-CSF in 26 patients (ESHAP group) with non-Hodgkin's lymphoma (NHL) and compared these results with those of 24 patients with NHL who received high-dose (4 g/m2l) cyclophosphamide (HDCY) as MC (HDCY group). The age, sex, and radiotherapy to the axial skeleton were well matched between groups, but the number of patients with poor mobilization predictors was higher in the ESHAP group. Significantly higher numbers of CD34+ cells (x 10(6)/kg) (17.1+/-18.8 vs 5.8+/-5.0, P=0.03) and apheresis day 1 CD34+ cells (x 10(6)/kg) (5.5+/-6.6 vs 1.7+/-2.0, P=0.014) were collected from the ESHAP group than from the HDCY group, and the number of patients who achieved an optimal CD34+ cell target of 5 x 10(6)/kg was higher in the ESHAP group (81 vs 50%, P=0.022). Log-rank test revealed that time to target peripheral blood progenitor cell collection (> or =5 x 10(6)/kg) was shorter in the ESHAP group (P=0.007). These results indicate that ESHAP plus G-CSF is an excellent mobilization regimen in patients with relapsed and poor-risk aggressive NHL.
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Sohn H, Kim S, Suh C, Yang Y, Ryu J, Moon D, Lee J. O-073 [18F]FLT-PET predicts response to gefitinib early after theinitiation of treatment in nonsmokers with adenocarcinoma of the lung. Lung Cancer 2005. [DOI: 10.1016/s0169-5002(05)80206-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kim S, Choi E, Kim J, Lee S, Kim S, Suh C, Lee J, Ha S, Park C, Cho K. P-512 Preliminary results of the prospective randomized phase III trialof KROG 03-02 on the induction chemotherapy in the concurrent chemoradiotherapy for the locally advanced non-small cell lung cancer. Lung Cancer 2005. [DOI: 10.1016/s0169-5002(05)81005-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yoon S, Choi E, Kim S, Suh C, Lee J, Shim T, Kim W, Kim D, Park S, Park C. P-646 A phase III randomized trial of postoperative adjuvant therapy inStage II or IIIA completely resected non-small cell lung cancer. Lung Cancer 2005. [DOI: 10.1016/s0169-5002(05)81139-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lee GW, Jang JS, Suh C. Combination chemotherapy with gemcitabine and cisplatin in patients with cytokeratin 7-positive/cytokeratin 20-negaive metastatic or unresectable adenocarcinoma of liver. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.4222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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110
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Kim SW, Sohn HJ, Lee GW, Suh C, Park SI, Kim DK, Choi EK, Kim WS, Ro JY, Lee JS. Clinical significance of lymphatic/vascular tumor cells (LVT) and adjuvant chemotherapy (AC) after curative resection of non-small cell lung cancer (NSCLC). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.7044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Kim H, Sohn HJ, Kim SE, Kang HJ, Park S, Kim S, Kim WK, Lee JS, Suh C. Lymphocyte recovery as a positive predictor of prolonged survival after autologous peripheral blood stem cell transplantation in T-cell non-Hodgkin's lymphoma. Bone Marrow Transplant 2005; 34:43-9. [PMID: 15107814 DOI: 10.1038/sj.bmt.1704530] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We performed a retrospective study on recovery and survival of patients with T-cell NHL after autologous peripheral blood stem cell transplantation (APBSCT). Of a total of 39 patients with high-risk T-cell NHL, 33 were analyzed. Six patients who experienced early treatment mortality without full lymphocyte recovery were excluded. We chose absolute lymphocyte count (ALC) recovery as 1000 cells/microl as a cutoff value. ALC recovery day was defined as the first of 3 consecutive days with ALC above 1000 cells/microl. Univariate analysis revealed that age younger than 45 years, good international prognostic index, chemosensitive disease prior to APBSCT, and early ALC recovery (1000 cells/microl within 25 days of APBSCT) were predictors of prolonged survival. Multivariate analyses confirmed that chemosensitive disease prior to APBSCT and early ALC recovery were strongly associated with better overall survival (OS) (P=0.005 and 0.011, respectively) and progression-free survival (PFS) (P<0.001 and P=0.013, respectively). Our finding, that ALC recovery > or =1000 cells/microl is an independent predictor of OS and PFS in T-cell NHL after APBSCT, suggests that earlier immune recovery may contribute to longer survival.
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Sohn HJ, Kim SW, Suh C, Kim EK, Yang HJ, Kim WS, Shim TS, Oh YM, Lee JS. Randomized trial comparing day 8 infusion of cisplatin (VP8) with day 1 infusion (VP1) in vinorelbine/cisplatin chemotherapy (VP) for advanced non-small cell lung cancer (NSCLC): Reduced episode of day 15 neutropenia with VP8. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.7327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Lee JH, Lee SJ, Kim JS, Yeol RB, Park K, Kim NK, Heo DS, Kim SW, Suh C, Lee JS. Phase II trial of CKD-602, a new camptothecin analogue, in patients with small cell lung cancer (SCLC). J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.7210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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114
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Lee C, Keum W, Keum K, Kim Y, Shim S, Choi E, Cha I, Kim G, Suh C. Risk factors and dose-effect relation for osteoradionecrosis of the mandible in oral and oropharygeal cancer. Int J Radiat Oncol Biol Phys 2003. [DOI: 10.1016/s0360-3016(03)01337-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Park H, Choi J, Suh Y, Suh C, Nahm D, Lee S. Acute and chronic changes of vascular endothelial growth factor (VEGF) in induced sputum and sera of toluene diisocyanate (TDI)-Induced asthma patients. J Allergy Clin Immunol 2003. [DOI: 10.1016/s0091-6749(03)80260-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Park KU, Kim SH, Suh C, Kim S, Lee SJ, Park JS, Cho HJ, Kim KW, Lee K, Kim HJ, Park J, Joo Min Y, Kim JG, Kim T, Lee JH, Kim SB, Kim SW, Lee KH, Lee JS, Kim WK, Park CJ, Chi HS. Correlation of hematopoietic progenitor cell count determined by the SE-automated hematology analyzer with CD34(+) cell count by flow cytometry in leukapheresis products. Am J Hematol 2001; 67:42-7. [PMID: 11279656 DOI: 10.1002/ajh.1074] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The yield of stem cell collection after mobilization is crucial for autologous peripheral blood stem cell (PBSC) transplantation. Quantitative determinations of CD34(+) cells using flow cytometry or stem cell culture have been used, but these methods require much time, technical experience, and expensive reagents. The automated hematology analyzer (Sysmex SE-9000trade mark, TOA, Japan) equipped with the Immature Information (IMI) channel for immature myeloid cells can detect IMI(+) cells within 90 sec. Detection is made possible by the combination of a special reagent system and direct current/radiofrequency biosensors. We studied the relation of IMI(+) cells and variable cell counts with CD34(+) cell yield in autologous stem cell harvest. In a series of 32 patients (median age, 44 years; M:F = 11:21), 184 leukaphereses were performed after mobilization regimens with chemotherapy and G-CSF or G-CSF alone. Full blood cell counts were enumerated on peripheral blood (PB) samples taken prior to each leukapheresis. Mononuclear cell (MNC) and IMI(+) cell counts by automated hematology analyzer and flow cytometry based CD34(+) cell yield were measured on the harvested product. The relationship among PB white blood cells (WBC), PB monocytes, IMI(+) cells, MNC, and CD34(+) cell yield in a single leukapheresis was estimated by Pearson correlation analysis. PB WBC count showed no correlation with CD34(+) cell yield in a single leukapheresis (r = 0.02, P = 0.81). PB monocyte count showed a weak correlation (r = 0.21, P = 0.01) and MNC in harvest also showed a weak correlation (r = 0.36, P = 0.0001) with CD34(+) cell yield. In contrast, CD34(+) cell yield correlated well with IMI(+) cell count (r = 0.68, P = 0.0001), and data could be fitted by a linear regression equation, y = 0.330 + 0.974x. IMI(+) cell assay by the automated hematology analyzer correlated well with the CD34(+) cell yield in a mobilized autologous stem cell harvest. The IMI(+) cell count might be used as a simple and efficient indicator of blood stem cell mobilization and collection.
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Suh C, Cho J, Cho K, Han Y, Chu S, Keum K, Kim G, Lee C, Lee S, Kim Y. The benefit of individualized custom bolus in the postmastectomy radiation therapy: Numerical analysis with 3-D treatment planning. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)81181-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lee S, Choi E, Kim G, Ahn S, Suh C, Kim K, Kim Y, Yon S, Kim S, Park J. Results of definitive radiation therapy in adenosquamous cell carcinoma of the uterine cervix. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)81663-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kim SB, Ahn IM, Park HJ, Park JS, Cho HJ, Gong G, Suh C, Lee JS, Kim WK, Kim SH. Growth inhibition and chemosensitivity of poorly differentiated human thyroid cancer cell line (NPA) transfected with p53 gene. Head Neck 2001; 23:223-9. [PMID: 11428453 DOI: 10.1002/1097-0347(200103)23:3<223::aid-hed1022>3.0.co;2-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND We investigated whether retroviral p53 transfection could enhance growth inhibition and chemosensitivity in a p53 mutant papillary thyroid cancer cell line (NPA). METHODS NPA cells were transfected with either LXSN/p53 or mock infection in the presence of Adriamycin. Gene expression was confirmed by western blotting. Nude mice were injected subcutaneously with NPA cells after transfection with either LXSN/p53 or mock infection on opposite sides, and the tumor growth was compared. RESULTS There was a dose-dependent inhibition of tumor growth with LXSN/p53 transfection. Tumor growth was inhibited more by p53 gene transfection relative to mock transfection in the presence of Adriamycin. CONCLUSION These treatment modalities could be beneficial in the treatment of p53 mutant positive thyroid cancers.
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Min YJ, Kim SW, Suh C, Park J, Kim HJ, Kim JG, Kim TW, Lee JH, Kim SB, Lee KH, Lee JS, Kim WK, Kim SH. The possible cost effectiveness of peripheral blood stem cell mobilization with cyclophosphamide and the late addition of G-CSF. J Korean Med Sci 2000; 15:49-52. [PMID: 10719808 PMCID: PMC3054601 DOI: 10.3346/jkms.2000.15.1.49] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The purpose of this study was to develop a cost-effective protocol for the mobilization of peripheral blood stem cells (PBSC) in patients with malignancy. Thirty consecutive patients were randomized to mobilize PBSC with the late addition of a standard 250 microg dose of G-CSF (Neutrogen) from day 8 or early addition of the same dose of G-CSF from day 2, following cyclophosphamide (CY) 4 g/m2. The median yield of CD34+ cells from evaluated patients was 7.87 x 10(6)/kg (range, 2.06-27.25), collected in a median of four apheresis (range, 2-9). Target CD34 + cell doses > or = 2.0 x 10(6)/kg were achieved in all patients able to be evaluated. There were no statistically significant differences in CD34+ cell yields or toxicities. Overall engraftment occurred with median days to neutrophils > or = 0.5 x 10(9)/L or platelets > 20 x 10(9)/L of 11 and 17 days, respectively. However, the duration of G-CSF administration was markedly shorter in the late use of G-CSF group than in the early use of G-CSF group, with a median of 9 days compared with 15 days (p<0.001). PBSC harvesting after priming with CY plus delayed use of G-CSF made it a safe and cost-effective procedure.
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Rebay I, Chen F, Hsiao F, Kolodziej PA, Kuang BH, Laverty T, Suh C, Voas M, Williams A, Rubin GM. A genetic screen for novel components of the Ras/Mitogen-activated protein kinase signaling pathway that interact with the yan gene of Drosophila identifies split ends, a new RNA recognition motif-containing protein. Genetics 2000; 154:695-712. [PMID: 10655223 PMCID: PMC1460949 DOI: 10.1093/genetics/154.2.695] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The receptor tyrosine kinase (RTK) signaling pathway is used reiteratively during the development of all multicellular organisms. While the core RTK/Ras/MAPK signaling cassette has been studied extensively, little is known about the nature of the downstream targets of the pathway or how these effectors regulate the specificity of cellular responses. Drosophila yan is one of a few downstream components identified to date, functioning as an antagonist of the RTK/Ras/MAPK pathway. Previously, we have shown that ectopic expression of a constitutively active protein (yan(ACT)) inhibits the differentiation of multiple cell types. In an effort to identify new genes functioning downstream in the Ras/MAPK/yan pathway, we have performed a genetic screen to isolate dominant modifiers of the rough eye phenotype associated with eye-specific expression of yan(ACT). Approximately 190,000 mutagenized flies were screened, and 260 enhancers and 90 suppressors were obtained. Among the previously known genes we recovered are four RTK pathway components, rolled (MAPK), son-of-sevenless, Star, and pointed, and two genes, eyes absent and string, that have not been implicated previously in RTK signaling events. We also isolated mutations in five previously uncharacterized genes, one of which, split ends, we have characterized molecularly and have shown to encode a member of the RRM family of RNA-binding proteins.
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Seong J, Chung E, Kim H, Kim G, Kim N, Sohn S, Min J, Suh C. Assessment of biomarkers in paired primary and recurrent colorectal adenocarcinomas. Eur J Cancer 1999. [DOI: 10.1016/s0959-8049(99)80681-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim SH, Suh C, Choi SJ, Kim JG, Lee JH, Kim SB, Kim SW, Lee KH, Lee JS, Kim WK, Kim SH, Seo EJ, Chi HS. Myelodysplastic syndrome that progressed to acute myelomonocytic leukemia with eosinophilia showing peculiar chromosomal abnormality: a case report. J Korean Med Sci 1999; 14:448-50. [PMID: 10485627 PMCID: PMC3054401 DOI: 10.3346/jkms.1999.14.4.448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Myelodysplastic syndrome is a closely related group of acquired bone marrow disorders characterized by ineffective and dysplastic hematopoiesis. These clonal disorders frequently progress to acute leukemia. Acute myelomonocytic leukemia with eosinophilia is characterized by an increase in abnormal eosinophils in the bone marrow, relatively good clinical course and inv (16) chromosomal abnormality. We experienced one case of refractory anemia with excess blasts which progressed to refractory anemia with excess blasts in transformation and finally to acute myelomonocytic leukemia with eosinophilia showing peculiar chromosomal abnormalities of der (1;7).
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Lee KH, Lee JS, Lee JH, Kim SW, Suh C, Kim WK, Kim SH, Min YI, Kim BS, Park KC, Lee MS, Sun HS. Prognostic value of DNA flow cytometry in stomach cancer: a 5-year prospective study. Br J Cancer 1999; 79:1727-35. [PMID: 10206284 PMCID: PMC2362816 DOI: 10.1038/sj.bjc.6690275] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The role of DNA flow cytometry in the prediction of prognosis for patients with stomach cancer remains to be defined. Thus we studied prospectively the role of DNA flow cytometry as a prognosis indicator in stomach cancer patients in a high-incidence area. Between November 1990 and December 1992, primary stomach cancer tissues were obtained from the surgical specimens from 217 patients (148 male, 69 female). DNA flow cytometric analyses of DNA ploidy and S-phase fraction were performed and the results were correlated with patient survival. The median age of the patients was 55 years (range 24-78). Aneuploid cell population was found in 114 of 217 samples (53%). Tumour S-phase fraction was obtained in 96 of 103 diploid tumours (93%) and 61 of 114 aneuploid tumours (54%). After median follow-up of 66.1 months, the patients with tumours with an S-phase fraction over 17% had significantly worse survival rates than patients with tumours with S-phase fractions of lower than 8% or 8-17% (45% vs 59% and 63% of patients surviving, P = 0.007). Tumour ploidy status did not correlate with patient survival. Multivariate analyses showed that the TNM stage remained the most important prognostic indicator. The tumour S-phase fraction was also an independent prognostic indicator (relative risk 2.300, 95% CI, 1.252-4.223). Tumour S-phase fraction obtained by DNA flow cytometry is an independent prognostic indicator for the survival of the patients with stomach cancer.
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