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Kim MK, Moon JY, Choi HY, Oh SH, Lee N, Choi YJ. Investigation of the magnetic properties in double perovskite R2CoMnO6 single crystals (R = rare earth: La to Lu). J Phys Condens Matter 2015; 27:426002. [PMID: 26442994 DOI: 10.1088/0953-8984/27/42/426002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We have successfully synthesized the series of the double-perovskite R2CoMnO6 (R = rare earth: La to Lu) single crystals and have investigated their magnetic properties. The ferromagnetic order of Co(2+)/Mn(4+) spins emerges mainly along the c axis. Upon decreasing the size of rare earth ion, the magnetic transition temperature decreases linearly from 204 K for La2CoMnO6 to 48 K for Lu2CoMnO6, along with the enhancement of monoclinic distortion. The temperature and magnetic-field dependences of magnetization reveal the various magnetic characteristics such as the metamagnetic transition in R = Eu, the isotropic nature of rare earth moment in R = Gd, and the reversal of magnetic anisotropy in R = Tb and Dy. Our results offer comprehensive information for understanding the roles of mixed-valent magnetic ions and rare earth magnetic moments on the magnetic properties.
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Affiliation(s)
- M K Kim
- Department of Physics and IPAP, Yonsei University, Seoul 120-749, Korea
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Lee JL, Kim MK, Park I, Ahn JH, Lee DH, Ryoo HM, Song C, Hong B, Hong JH, Ahn H. RandomizEd phase II trial of Sunitinib four weeks on and two weeks off versus Two weeks on and One week off in metastatic clear-cell type REnal cell carcinoma: RESTORE trial. Ann Oncol 2015; 26:2300-5. [PMID: 26347107 DOI: 10.1093/annonc/mdv357] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 08/19/2015] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The standard sunitinib schedule, 4 weeks on, followed by 2 weeks off (4/2 schedule), is associated with troublesome toxicities, and maintenance of adequate sunitinib dosing and drug levels, which are essential for achieving an optimal treatment outcome, is challenging. The objective of this study was to investigate the efficacy and safety of an alternative sunitinib dosing schedule of 2 weeks on and 1 week off (2/1 schedule) compared with the standard sunitinib schedule of 4 weeks on and 2 weeks off (4/2 schedule). PATIENTS AND METHODS In this multicenter, randomized, open-label, phase II trial, treatment-naïve patients with clear-cell type metastatic renal cell carcinoma (mRCC) were randomly assigned to 4/2 or 2/1 schedules after stratification by Memorial Sloan Kettering Cancer Center risk group and the presence or absence of measurable lesions. The primary end point was the 6-month failure-free survival (FFS) rate, determined by intention-to-treat analysis. RESULTS From November 2007 to February 2014, 76 patients were accrued, and 74 were eligible. FFS rates at 6 months were 44% with the 4/2 schedule (N = 36) and 63% with the 2/1 schedule (N = 38). Neutropenia (all grades, 61% versus 37%; grade 3-4, 28% versus 11%) and fatigue (all grades, 83% versus 58%) were more frequently observed with schedule 4/2. There was a strong tendency toward a lower incidence of stomatitis, hand-foot syndrome, and rash with schedule 2/1. Objective response rates (ORRs) were 47% in schedule 2/1 and 36% in schedule 4/2. With a median follow-up of 30.0 months, the median time to progression (TTP) was 12.1 months in schedule 2/1 and 10.1 months in schedule 4/2. CONCLUSION Sunitinib administered with a 2/1 schedule is associated with less toxicity and higher FFS at 6 months than a 4/2 schedule, without compromising the efficacy in terms of ORR and TTP (NCT00570882).
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Affiliation(s)
- J L Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - M K Kim
- Department of Hematology and Oncology, Yeungnam University College of Medicine, Daegu
| | - I Park
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul Department of Internal Medicine, Gachon University Gil Medical Center, Inchon
| | - J-H Ahn
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - D H Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - H M Ryoo
- Department of Hematology and Oncology, Daegu Catholic University Medical Center, Daegu
| | - C Song
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - B Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J H Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H Ahn
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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153
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Lim D, Kim MK, Jang YP, Kim J. Sceptridium ternatum attenuates allergic contact dermatitis-like skin lesions by inhibiting T helper 2-type immune responses and inflammatory responses in a mouse model. J Dermatol Sci 2015; 79:288-97. [PMID: 26150208 DOI: 10.1016/j.jdermsci.2015.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 05/19/2015] [Accepted: 06/23/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND Sceptridium ternatum (ST) is a medicinal herb used in folk remedies for the treatment of various disorders such as pertussis, allergic asthma, abdominalgia, diarrhea, and external use for wound healing. However, the biological and pharmacological activities of ST are not fully clarified besides anti-asthmatic effect. OBJECTIVE We studied a Sceptridium ternatum ethanol extract (ST) with respect to its anti-inflammatory and immune regulatory activities in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells, concanavalin A (conA)-stimulated BALB/c mice splenocytes, and a 2,4-dinitrochlorobenzene (DNCB)-induced allergic contact dermatitis (ACD) mouse model. METHODS RAW 264.7 cells were pretreated with ST for 1h and then stimulated with LPS. To determine the anti-inflammatory effects of ST, the production of nitric oxide (NO), interleukin (IL)-1β, IL-6, and tumor necrosis factor-α (TNF-α) were measured using an enzyme-linked immunosorbent assay (ELISA). To determine its anti-allergic effects, splenocytes from BALB/c mice were incubated and stimulated with conA in the absence or presence of ST for 48h. The production of IL-4 and interferon (IFN)-γ in culture supernatants were evaluated by ELISA. To test the effects of ST on ACD, 100μL of 1% DNCB was applied to the dorsal skin of BALB/c mice for 2 weeks, and ST was administered 2 h before DNCB application. The thicknesses of the epidermis and dermis were determined by skin histological analysis. Serum immunoglobulin (Ig) E levels, the production of IL-1β, IL-4, and IL-6 in dorsal skin tissue, and T helper (Th) 2 cytokines production of CD4(+) T cells were analyzed by ELISA. The expression of nuclear transcription factor-κB (NF-κB) both in vitro and in vivo was determined via immunoblotting. RESULTS In RAW 264.7 cells, ST inhibited LPS-induced inflammation mediator production and NF-κB expression. ST upregulated IFN-γ production and downregulated IL-4 production in conA-stimulated splenocytes. ST application reduced the thicknesses of the epidermis and dermis by decreasing serum IgE level and the expressions of IL-1β, IL-4, IL-6, and NF-κB in the dorsal skin of the DNCB-induced ACD model mice. Furthermore, ST treated group showed reduction of the Th2 cytokines production in activated CD4(+) T cells. CONCLUSION These findings not only indicate that application of ST reduced skin thickening by regulating Th 2-type allergic responses and inhibiting expression of inflammatory mediators in a DNCB-induced ACD mouse model, but also suggest that Sceptridium ternatum is a natural option for the treatment of skin inflammation.
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Affiliation(s)
- Dahae Lim
- Department of Korean Physiology, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Min Kyoung Kim
- Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Hoegi-dong, Dongdaemun-gu, Seoul 130-701, South Korea
| | - Young-Pyo Jang
- Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Hoegi-dong, Dongdaemun-gu, Seoul 130-701, South Korea; Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Hoegi-dong, Dongdaemun-gu, Seoul 130-701, South Korea
| | - Jinju Kim
- Department of Korean Physiology, College of Pharmacy, Kyung Hee University, Seoul, South Korea.
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154
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Kim J, Seo J, Kim W, Yun HM, Kim SC, Jang Y, Jang K, Kim K, Kim B, Park S, Park I, Kim MK, Seo KS, Kim HB, Kim IH, Seo S, Song M. Effects of Palm Kernel Expellers on Productive Performance, Nutrient Digestibility, and White Blood Cells of Lactating Sows. Asian-Australas J Anim Sci 2015; 28:1150-4. [PMID: 26104523 PMCID: PMC4478483 DOI: 10.5713/ajas.14.0908] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 02/03/2015] [Accepted: 03/14/2015] [Indexed: 11/27/2022]
Abstract
This experiment was conducted to investigate the effects of palm kernel expellers on productive performance, nutrient digestibility, and changes in white blood cells (WBC) of lactating sows. A total of 14 sows (200±12 kg of average body weight [BW]; 2.5 of average parity) were used and moved from gestation room to farrowing room on d 109 of gestation. Sows were randomly assigned to 2 dietary treatments in a completely randomized design. The treatments were a diet based on corn and soybean meal (CON) and CON added with 20% of palm kernel expellers (PKE). Sows were fed the treatments for 28 days (weaning) after farrowing. Blood was collected from each sow and 4 randomly selected piglets from each sow before farrowing or on d 3, 7, or 14 of lactation. Sows were fed respective treatments containing 0.2% chromic oxide from d 15 to 21 of lactation. Fecal samples were collected daily for the last 3 days after the 4-d adjustment period. Measurements were performances and WBC changes of sows and litter, nutrient digestibility of sows, and daily diarrhea of litter. Sows fed PKE had greater average daily feed intake (7.38 vs 7.10 kg/d; p<0.05) and lost less BW (−6.85 vs −8.54 kg; p<0.05) and backfat depth (−0.42 vs −0.71 mm; p<0.05) than those fed CON. However, there were no differences on digestibility of dry matter, nitrogen, and energy and weaning to estrus interval of sows fed either CON or PKE. Piglets from sows fed PKE gained more BW (203 vs 181 g/d; p = 0.08) and had less frequency of diarrhea (6.80 vs 8.56%; p = 0.07) than those from sows fed CON. On the other hand, no difference was found on preweaning mortality of piglets from sows fed either CON or PKE. Sows fed PKE had lower number of WBC (9.57 vs 11.82 ×103/μL; p = 0.09) before farrowing than those fed CON, but no difference on d 3 and 7. Similarly, piglets from sows fed PKE had also lower number of WBC (7.86 vs 9.80 ×103/μL; p<0.05) on d 14 of lactation than those from sows fed CON, but no difference on d 3 and 7. In conclusion, addition of 20% palm kernel expellers to lactation diet based on corn and soybean meal had no negative effects on productive performance, nutrient digestibility, and WBC changes of lactating sows.
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Affiliation(s)
- J Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - J Seo
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - W Kim
- Department of Animal Biosystem Sciences, Chungnam National University, Daejeon 305-764, Korea
| | - H M Yun
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - S C Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - Y Jang
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K Jang
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - B Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - S Park
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - I Park
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - M K Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K S Seo
- Department of Animal Science and Technology, Sunchon National University, Suncheon 540-742, Korea
| | - H B Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - I H Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - S Seo
- Department of Animal Biosystem Sciences, Chungnam National University, Daejeon 305-764, Korea
| | - M Song
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
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155
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Seo J, Kim W, Kim J, Kim JK, Kim SC, Jang Y, Jang K, Kim K, Kim B, Park S, Park I, Kim MK, Seo KS, Kim HB, Kim IH, Seo S, Song M. Effects of Palm Kernel Expellers on Growth Performance, Nutrient Digestibility, and Blood Profiles of Weaned Pigs. Asian-Australas J Anim Sci 2015; 28:987-92. [PMID: 26104403 PMCID: PMC4478508 DOI: 10.5713/ajas.14.0842] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/29/2014] [Accepted: 01/26/2015] [Indexed: 11/27/2022]
Abstract
This experiment was conducted to investigate the effects of palm kernel expellers on growth performance, nutrient digestibility, and blood profiles of weaned pigs. A total of 88 weaned pigs (6.94±0.76 kg body weight [BW]; 28 d old) were randomly allotted to 2 dietary treatments (4 pigs/pen; 11 replicates/treatment) in a randomized complete block design (sex as a block). The dietary treatments were a typical nursery diet based on corn and soybean meal (CON) and CON added with 20% of palm kernel expellers (PKE). Pigs were fed for 6 wk using a 3-phase feeding program with declining diet complexity and with phases of 1, 2, and 3 wk, respectively. Blood was collected from randomly selected 2 pigs in each pen before weaning and on d 7 after weaning. Pigs were fed respective dietary treatments containing 0.2% chromic oxide from d 29 to 35 after weaning. Fecal samples were collected from randomly selected 2 pigs in each pen daily for the last 3 days after the 4-d adjustment period. Measurements were growth performances, digestibility of dry matter, nitrogen and energy, white and red blood cell counts, packed cell volume, and incidence of diarrhea. The PKE increased average daily gain (ADG) (246 vs 215 g/d; p = 0.06) and average daily feed intake (ADFI) (470 vs 343 g/d; p<0.05) and decreased gain-to-feed ratio (G:F) (0.522 vs 0.628 g/g; p<0.05) during phase 2 compared with CON, but did not affect growth performance during phase 1 and 3. During overall experimental period, PKE increased ADG (383 vs 362 g/d; p = 0.05) and ADFI (549 vs 496 g/d; p<0.05) compared with CON, but did not affect G:F. However, no differences were found on digestibility of dry matter, nitrogen, and energy between CON and PKE. The PKE reduced frequency of diarrhea (15% vs 25%; p = 0.08) for the first 2 wk after weaning compared with CON. Similarly, PKE decreased white blood cells (8.19 vs 9.56×10(3)/μL; p = 0.07), red blood cells (2.92 vs 3.25×10(6)/μL; p = 0.09), and packed cell volume (11.1% vs 12.6%; p = 0.06) on d 7 after weaning compared with CON. In conclusion, addition of 20% palm kernel expellers to nursery diet based on corn and soybean meal had no negative effects on growth performance, nutrient digestibility, and blood profiles of weaned pigs.
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Affiliation(s)
- J Seo
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - W Kim
- Department of Animal Biosystem Sciences, Chungnam National University, Daejeon 305-764, Korea
| | - J Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - J K Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - S C Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - Y Jang
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K Jang
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - B Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - S Park
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - I Park
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - M K Kim
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
| | - K S Seo
- Department of Animal Science and Technology, Sunchon National University, Suncheon 540-742, Korea
| | - H B Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - I H Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 330-774, Korea
| | - S Seo
- Department of Animal Biosystem Sciences, Chungnam National University, Daejeon 305-764, Korea
| | - M Song
- Department of Animal Science, Pusan National University, Miryang 627-706, Korea
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156
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Kwon KJ, Lee EJ, Kim MK, Jeon SJ, Choi YY, Shin CY, Han SH. The potential role of melatonin on sleep deprivation-induced cognitive impairments: implication of FMRP on cognitive function. Neuroscience 2015; 301:403-14. [PMID: 26047724 DOI: 10.1016/j.neuroscience.2015.05.079] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 05/05/2015] [Accepted: 05/29/2015] [Indexed: 12/31/2022]
Abstract
While prolonged sleep deprivation (SD) could lead to profound negative health consequences, such as impairments in vital biological functions of immunity and cognition, melatonin possesses powerful ameliorating effects against those harmful insults. Melatonin has strong antioxidant and anti-inflammatory effects that help to restore body's immune and cognitive functions. In this study, we investigated the possible role of melatonin in reversing cognitive dysfunction induced by SD in rats. Our experimental results revealed that sleep-deprived animals exhibited spatial memory impairment in the Morris water maze tasks compared with the control groups. Furthermore, there was an increased glial activation most prominent in the hippocampal region of the SD group compared to the normal control (NC) group. Additionally, markers of oxidative stress such as 4-hydroxynonenal (4-HNE) and 7,8-dihydro-8-oxo-deoxyguanine (8-oxo-dG) were significantly increased, while fragile X-mental retardation protein (FMRP) expression was decreased in the SD group. Interestingly, melatonin treatment normalized these events to control levels following SD. Our data demonstrate that SD induces oxidative stress through glial activation and decreases FMRP expression in the neurons. Furthermore, our results suggest the efficacy of melatonin for the treatment of sleep-related neuronal dysfunction, which occurs in neurological disorders such as Alzheimer's disease and autism.
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Affiliation(s)
- K J Kwon
- Department of Neuroscience, Center for Neuroscience Research, Institute of Biomedical Science and Technology, Konkuk University School of Medicine, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea; Department of Neurology, Konkuk University Medical Center, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - E J Lee
- Department of Neuroscience, Center for Neuroscience Research, Institute of Biomedical Science and Technology, Konkuk University School of Medicine, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - M K Kim
- Department of Neuroscience, Center for Neuroscience Research, Institute of Biomedical Science and Technology, Konkuk University School of Medicine, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - S J Jeon
- Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, Republic of Korea
| | - Y Y Choi
- Department of Biomedical Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand
| | - C Y Shin
- Department of Neuroscience, Center for Neuroscience Research, Institute of Biomedical Science and Technology, Konkuk University School of Medicine, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - S-H Han
- Department of Neuroscience, Center for Neuroscience Research, Institute of Biomedical Science and Technology, Konkuk University School of Medicine, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea; Department of Neurology, Konkuk University Medical Center, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Republic of Korea.
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157
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Kim JY, Ryoo HM, Bae SH, Kang BW, Chae YS, Yoon S, Baek JH, Kim MK, Lee KH, Lee SA, Song HS, Kim JG. Multi-center Randomized Phase II Study of Weekly Docetaxel Versus Weekly Docetaxel-plus-Oxaliplatin as a Second-line Chemotherapy for Patients with Advanced Gastric Cancer. Anticancer Res 2015; 35:3531-3536. [PMID: 26026121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM The current phase II clinical study was conducted to evaluate the efficacy and safety of weekly docetaxel alone, and weekly docetaxel-plus-oxaliplatin, as a second-line chemotherapy in patients with cisplatin-refractory advanced gastric cancer. PATIENTS AND METHODS We enrolled patients with histologically confirmed gastric adenocarcinoma whose disease had progressed after cisplatin-based regimens. Patients were randomly assigned to receive docetaxel alone (36 mg/m(2), days 1 and 8) or docetaxel (36 mg/m(2), days 1 and 8) and oxaliplatin (80 mg/m(2), day 1) combination therapy every three weeks. RESULTS This trial was terminated early due to poor patient accrual rate. From January 2009 to January 2012, a total of 52 patients were enrolled in the current study from six centers: 27 patients in the docetaxel monotherapy arm and 25 patients in the docetaxel/oxaliplatin combination arm. Fifty-two patients were assessable for efficacy, and response rates as follows (response rate: 14.8% in the monotherapy arm, 24.0% in the combination arm; disease control rate: 48.1% in the monotherapy arm, 76.0% in the combination arm. The median progression-free survival was 2.0 (95% confidence interval=1.2-2.9) months in the monotherapy arm and 4.9 (95% confidence interval=3.6-6.6) months in the combination arm (p=0.002). The most common grade 3 or 4 adverse event was neutropenia (14% for monotherapy versus 32% for combination). No treatment-related mortality was observed. CONCLUSION Weekly docetaxel and weekly docetaxel-plus-oxalipaltin regimens were found to be well-tolerated and effective as a second-line chemotherapy for patients with advanced gastric cancer.
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Affiliation(s)
- Jin Young Kim
- Division of Hematology/Oncology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Daegu, Republic of Korea
| | - Hun Mo Ryoo
- Department of Oncology/Hematology, Daegu Catholic University Hospital, Daegu, Republic of Korea
| | - Sung Hwa Bae
- Department of Oncology/Hematology, Daegu Catholic University Hospital, Daegu, Republic of Korea
| | - Byung Woog Kang
- Department of Oncology/Hematology, Kyungpook National University Medical Center, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Yee Soo Chae
- Department of Oncology/Hematology, Kyungpook National University Medical Center, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Shinkyo Yoon
- Department of Oncology/Hematology, Kyungpook National University Medical Center, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Jin Ho Baek
- Department of Hematology/Oncology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Min Kyoung Kim
- Department of Oncology/Hematology, Yeungnam University Medical Cener, Daegu, Republic of Korea
| | - Kyung Hee Lee
- Department of Oncology/Hematology, Yeungnam University Medical Cener, Daegu, Republic of Korea
| | - Sun Ah Lee
- Department of Hematology/Oncology, Daegu Fatima Hospital, Daegu, Republic of Korea
| | - Hong Suk Song
- Division of Hematology/Oncology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Daegu, Republic of Korea
| | - Jong Gwang Kim
- Department of Oncology/Hematology, Kyungpook National University Medical Center, Kyungpook National University School of Medicine, Daegu, Republic of Korea
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158
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Keam B, Kim SB, Shin SH, Cho BC, Lee KW, Kim MK, Yun HJ, Lee SH, Yoon DH, Bang YJ. Phase 2 study of dovitinib in patients with metastatic or unresectable adenoid cystic carcinoma. Cancer 2015; 121:2612-7. [PMID: 25903089 DOI: 10.1002/cncr.29401] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 03/03/2015] [Accepted: 03/05/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND The objective of this study was to evaluate the efficacy and safety of dovitinib in patients with adenoid cystic carcinoma (ACC). METHODS ACC patients with documented disease progression within the past 12 months were eligible. Patients received oral dovitinib (500 mg once daily for 5 consecutive days followed by a 2-day rest every week) until disease progression or unacceptable toxicities. The primary endpoint was the probability of 4-month progression-free survival (PFS). Metabolic response was evaluated with positron emission tomography (PET)/computed tomography (CT) scans performed at the baseline and after 8 weeks of treatment. RESULTS Between September 2011 and April 2013, 32 patients with metastatic and/or unresectable ACC were enrolled in this prospective, multicenter trial. The 4-month PFS probability was 80.4%, and the median PFS was 6.0 months (95% confidence interval, 4.4-7.6 months). Tumor shrinkage was observed in 22 patients (68.8%), and 1 patient had a confirmed partial response. The disease control rate was 96.9%. Among 26 patients with PET/CT scans both before and after treatment (at 8 weeks), the metabolic activity of ACC was reduced in 13 patients (50.0%), and 5 patients (19.2%) achieved a metabolic partial response, which was defined as a ≥25% reduction in maximum standardized uptake values. Common grade 3 and 4 adverse events were asthenia (50.0%) and neutropenia (25.0%). CONCLUSIONS Dovitinib shows modest antitumor activity in the treatment of ACC.
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Affiliation(s)
- Bhumsuk Keam
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sung-Bae Kim
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Seong Hoon Shin
- Department of Internal Medicine, Kosin University Gospel Hospital, Busan, Republic of Korea
| | - Byoung Chul Cho
- Department of Internal Medicine, Yonsei University College of Medicine, Yonsei Cancer Center, Seoul, Republic of Korea
| | - Keun-Wook Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Min Kyoung Kim
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Hwan-Jung Yun
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Se-Hoon Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Dok Hyun Yoon
- Department of Oncology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Yung-Jue Bang
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
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159
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Belfort R, de Abreu MT, Petrilli AM, Kim MK, Martins MC, Lottemberg C, Neves RA, Pavesio CE. Cytotoxic drugs in intermediate uveitis. Dev Ophthalmol 2015; 23:171-6. [PMID: 1730353 DOI: 10.1159/000429648] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- R Belfort
- Escola Paulista de Medicina, Hospital São Paulo, Brasil
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160
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Yang HJ, Kim KJ, Kim MK, Lee SJ, Ryu YH, Seo BF, Oh DY, Ahn ST, Lee HY, Rhie JW. The stem cell potential and multipotency of human adipose tissue-derived stem cells vary by cell donor and are different from those of other types of stem cells. Cells Tissues Organs 2015; 199:373-83. [PMID: 25823468 DOI: 10.1159/000369969] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2014] [Indexed: 11/19/2022] Open
Abstract
Human adipose tissue-derived mesenchymal stem cells (AT-MSCs) from various sites are applied in tissue engineering and cell therapy. The condition of AT-MSCs depends on the donor's age, body mass index (BMI), and gender. AT-MSCs from 66 human donors were analyzed, and the cells were sorted according to donor age (10-19 years: n = 1; 20-29 years: n = 5; 30-39 years: n = 12; 40-49 years: n = 22; 50-59 years: n = 12; 60-69 years: n = 9, and 70 years or older: n = 5), BMI (under 25, 25-30, and over 30), and gender (19 males and 48 females). Additionally, AT-MSCs were compared to bone marrow MSCs and chorionic tissue-derived MSCs. We measured the MSC yield, growth rate, colony-forming units, multipotency, and surface antigens. AT-MSC proliferation was greater in cells isolated from individuals aged less than 30 years compared to the proliferation of AT-MSCs from those over 50 years old. BMI was correlated with osteogenic differentiation potency; increased BMI enhanced osteogenesis. Adipogenic differentiation was more strongly induced in cells isolated from donors aged less than 30 years compared to those isolated from other age groups. Also, a BMI above 30 was associated with enhanced adipogenic differentiation compared to cells isolated from individuals with a BMI below 25. Bone marrow MSCs were strongly induced to differentiate along both osteogenic and adipogenic lineages, whereas AT-MSCs predominantly differentiated into the chondrogenic lineage. Therefore, the type of regeneration required and variations among potential donors must be carefully considered when selecting MSCs for use in applied tissue engineering or cell therapy.
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Affiliation(s)
- Hyun Jin Yang
- Department of Plastic and Reconstructive Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kim KJ, Joe YA, Kim MK, Lee SJ, Ryu YH, Cho DW, Rhie JW. Silica nanoparticles increase human adipose tissue-derived stem cell proliferation through ERK1/2 activation. Int J Nanomedicine 2015; 10:2261-72. [PMID: 25848249 PMCID: PMC4378289 DOI: 10.2147/ijn.s71925] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background Silicon dioxide composites have been found to enhance the mechanical properties of scaffolds and to support growth of human adipose tissue-derived stem cells (hADSCs) both in vitro and in vivo. Silica (silicon dioxide alone) exists as differently sized particles when suspended in culture medium, but it is not clear whether particle size influences the beneficial effect of silicon dioxide on hADSCs. In this study, we examined the effect of different sized particles on growth and mitogen-activated protein kinase signaling in hADSCs. Methods Silica gel was prepared by a chemical reaction using hydrochloric acid and sodium silicate, washed, sterilized, and suspended in serum-free culture medium for 48 hours, and then sequentially filtered through a 0.22 μm filter (filtrate containing nanoparticles smaller than 220 nm; silica NPs). hADSCs were incubated with silica NPs or 3 μm silica microparticles (MPs), examined by transmission electron microscopy, and assayed for cell proliferation, apoptosis, and mitogen-activated protein kinase signaling. Results Eighty-nine percent of the silica NPs were around 50–120 nm in size. When hADSCs were treated with the study particles, silica NPs were observed in endocytosed vacuoles in the cytosol of hADSCs, but silica MPs showed no cell entry. Silica NPs increased the proliferation of hADSCs, but silica MPs had no significant effect in this regard. Instead, silica MPs induced slight apoptosis. Silica NPs increased phosphorylation of extracellular signal-related kinase (ERK)1/2, while silica MPs increased phosphorylation of p38. Silica NPs had no effect on phosphorylation of Janus kinase or p38. Pretreatment with PD98059, a MEK inhibitor, prevented the ERK1/2 phosphorylation and proliferation induced by silica NPs. Conclusion Scaffolds containing silicon dioxide for tissue engineering may enhance cell growth through ERK1/2 activation only when NPs around 50–120 nm in size are included, and single component silica-derived NPs could be useful for bioscaffolds in stem cell therapy.
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Affiliation(s)
- Ki Joo Kim
- Department of Plastic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea ; Department of Molecular Biomedicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young Ae Joe
- Cancer Research Institute and Department of Medical Lifescience, The Catholic University of Korea, Seoul, Republic of Korea
| | - Min Kyoung Kim
- Department of Plastic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea ; Department of Molecular Biomedicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Su Jin Lee
- Department of Plastic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yeon Hee Ryu
- Department of Plastic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea ; Department of Molecular Biomedicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dong-Woo Cho
- Department of Mechanical Engineering, Pohang University of Science and Technology, Gyeongbuk, Republic of Korea ; Department of Integrative Bioscience and Bioengineering, Pohang University of Science and Technology, Gyeongbuk, Republic of Korea
| | - Jong Won Rhie
- Department of Plastic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea ; Department of Molecular Biomedicine, The Catholic University of Korea, Seoul, Republic of Korea
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162
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Oh HY, Kim BS, Seo SS, Kong JS, Lee JK, Park SY, Hong KM, Kim HK, Kim MK. The association of uterine cervical microbiota with an increased risk for cervical intraepithelial neoplasia in Korea. Clin Microbiol Infect 2015; 21:674.e1-9. [PMID: 25752224 DOI: 10.1016/j.cmi.2015.02.026] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 01/04/2015] [Accepted: 02/26/2015] [Indexed: 12/19/2022]
Abstract
Recent studies have suggested potential roles of the microbiome in cervicovaginal diseases. However, there has been no report on the cervical microbiome in cervical intraepithelial neoplasia (CIN). We aimed to identify the cervical microbiota of Korean women and assess the association between the cervical microbiota and CIN, and to determine the combined effect of the microbiota and human papillomavirus (HPV) on the risk of CIN. The cervical microbiota of 70 women with CIN and 50 control women was analysed using pyrosequencing based on the 16S rRNA gene. The associations between specific microbial patterns or abundance of specific microbiota and CIN risk were assessed using multivariate logistic regression, and the relative excess risk due to interaction (RERI) and the synergy index (S) were calculated. The phyla Firmicutes, Actinobacteria, Bacteroidetes, Proteobacteria, Tenericutes, Fusobacteria and TM7 were predominant in the microbiota and four distinct community types were observed in all women. A high score of the pattern characterized by predominance of Atopobium vaginae, Gardnerella vaginalis and Lactobacillus iners with a minority of Lactobacillus crispatus had a higher CIN risk (OR 5.80, 95% CI 1.73-19.4) and abundance of A. vaginae had a higher CIN risk (OR 6.63, 95% CI 1.61-27.2). The synergistic effect of a high score of this microbial pattern and oncogenic HPV was observed (OR 34.1, 95% CI 4.95-284.5; RERI/S, 15.9/1.93). A predominance of A. vaginae, G. vaginalis and L. iners with a concomitant paucity of L. crispatus in the cervical microbiota was associated with CIN risk, suggesting that bacterial dysbiosis and its combination with oncogenic HPV may be a risk factor for cervical neoplasia.
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Affiliation(s)
- H Y Oh
- Division of Cancer Epidemiology and Management, National Cancer Centre, Ilsandong-gu, Goyang, Korea
| | - B-S Kim
- Chunlab Inc., Seoul National University, Seoul, Korea; Department of Life Science, Hallym University, Chuncheon, Korea
| | - S-S Seo
- Centre for Uterine Cancer, National Cancer Centre, Ilsandong-gu, Goyang, Korea
| | - J-S Kong
- Division of Cancer Epidemiology and Management, National Cancer Centre, Ilsandong-gu, Goyang, Korea
| | - J-K Lee
- Department of Obstetrics and Gynaecology, Korea University College of Medicine, Seoul, Korea
| | - S-Y Park
- Centre for Uterine Cancer, National Cancer Centre, Ilsandong-gu, Goyang, Korea
| | - K-M Hong
- Division of Cancer Biology, National Cancer Centre, Goyang-si, Korea
| | - H-K Kim
- Division of Cancer Biology, National Cancer Centre, Goyang-si, Korea
| | - M K Kim
- Division of Cancer Epidemiology and Management, National Cancer Centre, Ilsandong-gu, Goyang, Korea.
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163
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Choi HJ, Lee JJ, Kim DH, Kim MK, Lee HJ, Ko AY, Kang HJ, Park C, Wee WR. Blockade of CD40-CD154 costimulatory pathway promotes long-term survival of full-thickness porcine corneal grafts in nonhuman primates: clinically applicable xenocorneal transplantation. Am J Transplant 2015; 15:628-41. [PMID: 25676390 DOI: 10.1111/ajt.13057] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 10/10/2014] [Accepted: 10/11/2014] [Indexed: 01/25/2023]
Abstract
The porcine cornea may be a good solution for the shortage of human donor corneas because its size and refractive properties are comparable to those of the human cornea. However, antigenic differences need to be overcome to apply xenocorneal transplantation in actual clinical practice. We aimed to investigate the feasibility of full-thickness porcine corneas as human corneal substitutes using a CD40-CD154 costimulatory pathway blocking strategy in a clinically applicable pig-to-nonhuman primate corneal transplantation model. As a result, the mean survival time of the xenocorneal grafts in recipients who received anti-CD154 antibody-based immunosuppressants (POD318 (n = 4); >933, >243, 318 and >192) was significantly longer than that in controls (POD28 (n = 3); 21, 28 and 29; p = 0.010, log-rank test). Administration of anti-CD154 antibodies markedly reduced inflammatory cellular infiltrations (predominantly CD8 T cells and macrophages) into the xenocorneal grafts and almost completely blocked xenoantigen-triggered increases in Th1-associated cytokines, chemokines and C3a in the aqueous humor. Moreover, systemic expansion of memory T cells was effectively controlled and responses of anti-Gal/donor pig-specific antibodies were considerably diminished by programmed injection of anti-CD154 antibodies. Consequently, porcine corneas might be promising human corneal substitutes when the transplantation is accompanied by potent immunosuppression such as a CD40-CD154 costimulatory pathway blockade.
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Affiliation(s)
- H J Choi
- Department of Ophthalmology, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea; Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Ocular Regenerative Medicine and Immunology, Seoul Artificial Eye Center, Seoul National University Hospital Biomedical Research Institute, Seoul, Republic of Korea; Translational Xenotransplantation Research Center, Seoul National University College of Medicine and Seoul National University Hospital Biomedical Research Institute, Seoul, Republic of Korea
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164
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Lee JL, Kim MK, Park I, Ahn JH, Lee DH, Ryoo HM, Song C, Hong BS, Hong JH, Ahn H. Randomized phase II trial of sunitinib four-week on and two-week off versus two-week on and one-week off in metastatic clear cell type renal cell carcinoma: RESTORE trial. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.7_suppl.427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
427 Background: Standard sunitinib schedule, 4-week on followed by 2-week off (schedule 4/2), is associated with troublesome toxicities, and maintenance of sunitinib dose intensity has been challenging, especially in patients with Asian ethnicity. To determine the efficacy and safety of an alternative dosing schedule, 2-week on and 1-week off (schedule 2/1), we conducted a randomized phase II study. Methods: Treatment-naïve patients ≥18 years with clear cell type, mRCC were randomly assigned 1:1 to schedule 4/2 or schedule 2/1 after stratification for MSKCC risk group. The primary endpoint was failure-free survival (FFS) at 6 months. Results: From November 2007 to February 2014, 76 patients were enrolled (38 to schedule 4/2 and 38 to schedule 2/1). Two patients in schedule 4/2 were later found to be ineligible due to brain metastases and excluded from the analysis. FFS at 6 months was 44% in schedule 4/2 and 63% in schedule 2/1. Patients with schedule 2/1 were treated for a median of 7.7 months (95% CI, 3.0-12.3) of initial assigned schedule, while patients with schedule 4/2 were treated for a median of 5.7 months (95% CI, 5.0-6.5) (HR=0.54, 95% CI, 0.32-0.91, p=0.021). Seven patients in the schedule 4/2 crossed over to the schedule 2/1. Neutropenia (all grade 61% vs. 37%; grade 3-4 28% vs. 11%, p=0.0368) and fatigue (all grade 83% vs. 58%, p=0.0167) were more frequently observed with schedule 4/2. There is a strong tendency of lower incidence of mucositis (all grade, 86% vs.71%, p=0.116), and hand-foot syndrome (grade 3-4, 33% vs. 18%, p=0.143) and rash (all grade, 56% vs. 34%, p=0.0648) with schedule 2/1. Eighteen patients (ORR, 47%) in the schedule 2/1 achieved a partial response (PR) while one patient had a complete response and 11 patients had a PR (ORR, 36%, 95% CI) in the schedule 4/2. With a median follow-up duration of 47 months, the median time-to-progression was 15.1 months in the schedule 2/1 and 10.1 months in the schedule 4/2 (HR=0.69, 95% CI, 0.39-1.20). Conclusions: Sunitinib given with the schedule 2/1 is associated with less toxicity and longer FFS than the schedule 4/2 without compromising the efficacy in terms of ORR and PFS (NCT00570882). Clinical trial information: NCT00570882.
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Affiliation(s)
- Jae-Lyun Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Min Kyoung Kim
- Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, South Korea
| | - Inkeun Park
- Division of Hematology and Oncology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, South Korea
| | - Jin-Hee Ahn
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Dae Ho Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Hun-Mo Ryoo
- Daegu Catholic University Hospital, Daegu, South Korea
| | - Cheryn Song
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Bum-Sik Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jun Hyuck Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Hanjong Ahn
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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165
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Kim MK, Rhee EJ, Han KA, Woo AC, Lee MK, Ku BJ, Chung CH, Kim KA, Lee HW, Park IB, Park JY, Chul Jang HC, Park KS, Jang WI, Cha BY. Efficacy and safety of teneligliptin, a dipeptidyl peptidase-4 inhibitor, combined with metformin in Korean patients with type 2 diabetes mellitus: a 16-week, randomized, double-blind, placebo-controlled phase III trial. Diabetes Obes Metab 2015; 17:309-12. [PMID: 25475929 PMCID: PMC6680285 DOI: 10.1111/dom.12424] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/28/2014] [Accepted: 12/01/2014] [Indexed: 12/01/2022]
Abstract
The aim of the present study was to assess the efficacy and safety of teneligliptin in combination with metformin in Korean patients with type 2 diabetes mellitus who were inadequately controlled with metformin monotherapy. Patients [glycated haemoglobin (HbA1c) 7.0-10.0%, on stable metformin ≥1000 mg/day] were randomized 2 : 1 to receive 20 mg teneligliptin plus metformin (n = 136) or placebo plus metformin (n = 68). The primary endpoint was the change in HbA1c levels from baseline to week 16. The mean baseline HbA1c was 7.9% in the teneligliptin group and 7.8% in the placebo group. The differences between the teneligliptin and placebo groups regarding changes in HbA1c and fasting plasma glucose levels were -0.78 % and -1.24 mmol/l (22.42 mg/dl), respectively, at week 16. The incidence of adverse events was similar between the groups. The addition of teneligliptin once daily to metformin was effective and generally well tolerated in Korean patients with type 2 diabetes.
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Affiliation(s)
- M K Kim
- Department of Internal Medicine, The Catholic University of Korea, Seoul, Korea
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166
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Chang HS, Shin SW, Lee TH, Bae DJ, Park JS, Kim YH, Uh ST, Choi BW, Kim MK, Choi IS, Park BL, Shin HD, Park CS. Development of a genetic marker set to diagnose aspirin-exacerbated respiratory disease in a genome-wide association study. Pharmacogenomics J 2015; 15:316-21. [PMID: 25707394 DOI: 10.1038/tpj.2014.78] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 09/28/2014] [Accepted: 11/05/2014] [Indexed: 12/27/2022]
Abstract
We developed a genetic marker set of single nucleotide polymorphisms (SNPs) by summing risk scores of 14 SNPs showing a significant association with aspirin-exacerbated respiratory disease (AERD) from our previous 660 W genome-wide association data. The summed scores were higher in the AERD than in the aspirin-tolerant asthma (ATA) group (P=8.58 × 10(-37)), and were correlated with the percent decrease in forced expiratory volume in 1 s after aspirin challenge (r(2)=0.150, P=5.84 × 10(-30)). The area under the curve of the scores for AERD in the receiver operating characteristic curve was 0.821. The best cutoff value of the summed risk scores was 1.01328 (P=1.38 × 10(-32)). The sensitivity and specificity of the best scores were 64.7% and 85.0%, respectively, with 42.1% positive and 93.4% negative predictive values. The summed risk score may be used as a genetic marker with good discriminative power for distinguishing AERD from ATA.
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Affiliation(s)
- H S Chang
- Department of Medical Bioscience, Graduate School, Soonchunhyang University, Asan, Republic of Korea
| | - S W Shin
- Asthma Genome Research Center, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - T H Lee
- Department of Medical Bioscience, Graduate School, Soonchunhyang University, Asan, Republic of Korea
| | - D J Bae
- Department of Medical Bioscience, Graduate School, Soonchunhyang University, Asan, Republic of Korea
| | - J S Park
- 1] Asthma Genome Research Center, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea [2] Division of Allergy and Respiratory Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Y H Kim
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - S T Uh
- Division of Allergy and Respiratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - B W Choi
- Department of Internal Medicine, Chung-Ang University Yongsan Hospital, Seoul, Republic of Korea
| | - M K Kim
- Division of Internal Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - I S Choi
- Department of Allergy, Chonnam National University, Gwangju, Republic of Korea
| | - B L Park
- Department of Genetic Epidemiology, SNP Genetics Incorporation, Seoul, Republic of Korea
| | - H D Shin
- 1] Department of Genetic Epidemiology, SNP Genetics Incorporation, Seoul, Republic of Korea [2] Department of Life Science, Sogang University, Seoul, Republic of Korea
| | - C S Park
- 1] Asthma Genome Research Center, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea [2] Division of Allergy and Respiratory Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
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167
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Jeong DE, Kim MK, Koh SA, Lee KH, Choi JH, Hong YH, Cho JH, Goo EJ, Hyun MS. Immune thrombocytopenia associated with sarcoidosis. Yeungnam Univ J Med 2015. [DOI: 10.12701/yujm.2015.32.1.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Da Eun Jeong
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Min Kyoung Kim
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Sung Ae Koh
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Kyoung Hee Lee
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Joon Hyuk Choi
- Department of Pathology, Yeungnam University College of Medicine, Daegu, Korea
| | - Young Hoon Hong
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Jae Ho Cho
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Eun Ju Goo
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Myung Soo Hyun
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
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168
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Wang K, Kim MK, Di Caro G, Wong J, Shalapour S, Wan J, Zhang W, Zhong Z, Sanchez-Lopez E, Wu LW, Taniguchi K, Feng Y, Fearon E, Grivennikov SI, Karin M. Interleukin-17 receptor a signaling in transformed enterocytes promotes early colorectal tumorigenesis. Immunity 2014; 41:1052-63. [PMID: 25526314 DOI: 10.1016/j.immuni.2014.11.009] [Citation(s) in RCA: 230] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 11/19/2014] [Indexed: 12/17/2022]
Abstract
Interleukin-17A (IL-17A) is a pro-inflammatory cytokine linked to rapid malignant progression of colorectal cancer (CRC) and therapy resistance. IL-17A exerts its pro-tumorigenic activity through its type A receptor (IL-17RA). However, IL-17RA is expressed in many cell types, including hematopoietic, fibroblastoid, and epithelial cells, in the tumor microenvironment, and how IL-17RA engagement promotes colonic tumorigenesis is unknown. Here we show that IL-17RA signals directly within transformed colonic epithelial cells (enterocytes) to promote early tumor development. IL-17RA engagement activates ERK, p38 MAPK, and NF-κB signaling and promotes the proliferation of tumorigenic enterocytes that just lost expression of the APC tumor suppressor. Although IL-17RA signaling also controls the production of IL-6, this mechanism makes only a partial contribution to colonic tumorigenesis. Combined treatment with chemotherapy, which induces IL-17A expression, and an IL-17A neutralizing antibody enhanced the therapeutic responsiveness of established colon tumors. These findings establish IL-17A and IL-17RA as therapeutic targets in colorectal cancer.
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Affiliation(s)
- Kepeng Wang
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0723, USA
| | - Min Kyoung Kim
- Division of Hematology-Oncology, Department of Medicine, Yeungnam University College of Medicine, 317-1, Daemyung-5 dong, Namgu, Daegu 705-717, South Korea
| | - Giuseppe Di Caro
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0723, USA
| | - Jerry Wong
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0723, USA
| | - Shabnam Shalapour
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0723, USA
| | - Jun Wan
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, Guangdong Province, China; Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, 100044 China
| | - Wei Zhang
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, Guangdong Province, China
| | - Zhenyu Zhong
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0723, USA
| | - Elsa Sanchez-Lopez
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0723, USA
| | - Li-Wha Wu
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan 70101, Taiwan, ROC
| | - Koji Taniguchi
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0723, USA; Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Ying Feng
- Departments of Internal Medicine, Human Genetics and Pathology, University of Michigan Medical School, Ann Arbor, Michigan 48109, USA
| | - Eric Fearon
- Departments of Internal Medicine, Human Genetics and Pathology, University of Michigan Medical School, Ann Arbor, Michigan 48109, USA
| | - Sergei I Grivennikov
- Cancer Prevention and Control Program, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111-2497, USA
| | - Michael Karin
- Laboratory of Gene Regulation and Signal Transduction, Departments of Pharmacology and Pathology, School of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0723, USA.
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Jung SH, Lee JJ, Kim WS, Lee WS, Do YR, Oh SY, Kim MK, Mun YC, Shin HJ, Kwak JY, Kang HJ, Won JH, Kwon JH, Park E, Suh C, Yang DH. Weekly rituximab consolidation following four cycles of R-CHOP induction chemotherapy in very elderly patients with diffuse large B-cell lymphoma: Consortium for improving survival of lymphoma study (CISL). Eur J Haematol 2014; 94:504-10. [PMID: 25288018 DOI: 10.1111/ejh.12459] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2014] [Indexed: 11/27/2022]
Abstract
This study aimed to determine the objective response, toxicity, and clinical outcome of weekly rituximab consolidation after four cycles of R-CHOP21 in very elderly patients with DLBCL. A prospective, multi-institutional phase II trial was conducted on patients with previously untreated CD20(+) DLBCL who were older than 70 yr. Patients were treated with four cycles of R-CHOP21 followed by weekly consolidation with rituximab (375 mg/m(2) , four times infusion) (NCT01181999). We also compared the clinical outcomes with an historical case-matched control group treated conventionally with six cycles of R-CHOP21. A total of 51 patients with newly diagnosed DLBCL were enrolled at 15 institutes between June 2010 and September 2013. The median age was 76 yr (range: 70-89). Forty-one of the 51 patients completed the planned rituximab consolidation (R-consolidation). The overall response rate was 78.4%, comprising 74.5% with a complete response and 3.9% with a partial response. After a median follow-up of 20.3 months, 2-yr progression-free survival and overall survival were 63.9% and 68.7%, respectively. No serious toxicities were reported during rituximab consolidation. Weekly rituximab consolidation following four cycles of R-CHOP21 resulted in an acceptable response with high tolerability and could be a good compromise between efficacy and safety for elderly patients with DLBCL.
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Affiliation(s)
- Sung-Hoon Jung
- Department of Hemato-Oncology, Chonnam National University Hwasun Hospital, Jeollanam-do, Korea
| | - Je-Jung Lee
- Department of Hemato-Oncology, Chonnam National University Hwasun Hospital, Jeollanam-do, Korea
| | - Won Seog Kim
- Department of Hemato-Oncology, Samsung Medical Center, Seoul, Korea
| | - Won-Sik Lee
- Department of Hemato-Oncology, Busan Paik Hospital, Inje University, Busan, Korea
| | - Young Rok Do
- Department of Hemato-Oncology, Keimyung University Dongsan Medical Center, Daegu, Korea
| | - Sung Yong Oh
- Department of Hemato-Oncology, Dong-A Medical Center, Busan, Korea
| | - Min Kyoung Kim
- Department of Hemato-Oncology, Yeungnam University College of Medicine, Taegu, Korea
| | - Yeung-Chul Mun
- Department of Hemato-Oncology, Ewha Womans University Hospital, Seoul, Korea
| | - Ho-Jin Shin
- Department of Hemato-Oncology, Busan National University Hospital, Busan, Korea
| | - Jae-Yong Kwak
- Department of Hemato-Oncology, Chonbuk National University Medical School, Jeonju, Korea
| | - Hye Jin Kang
- Department of Hemato-Oncology, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - Jong Ho Won
- Department of Hemato-Oncology, Soon Chun Hyang University, Seoul, Korea
| | - Jung Hye Kwon
- Department of Hemato-Oncology, Hallym University College of Medicine, Seoul, Korea
| | - Eunkyung Park
- Department of Hemato-Oncology, Chung-Ang University Hospital, Seoul, Korea
| | - Cheolwon Suh
- Department of Hemato-Oncology, Asan Medical Center, Seoul, Korea
| | - Deok-Hwan Yang
- Department of Hemato-Oncology, Chonnam National University Hwasun Hospital, Jeollanam-do, Korea
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Hong J, Kim SJ, Ahn JS, Song MK, Kim YR, Lee HS, Yhim HY, Yoon DH, Kim MK, Oh SY, Park Y, Mun YC, Do YR, Ryoo HM, Lee JJ, Lee JH, Kim WS, Suh C. Treatment Outcomes of Rituximab Plus Hyper-CVAD in Korean Patients with Sporadic Burkitt or Burkitt-like Lymphoma: Results of a Multicenter Analysis. Cancer Res Treat 2014; 47:173-81. [PMID: 25544581 PMCID: PMC4398112 DOI: 10.4143/crt.2014.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 03/25/2014] [Indexed: 02/02/2023] Open
Abstract
PURPOSE This study was conducted to evaluate outcomes in adult patients with Burkitt lymphoma (BL) or Burkitt-like lymphoma treated with an rituximab plus hyper-CVAD (R-hyper-CVAD) regimen by focusing on tolerability and actual delivered relative dose intensity (RDI). MATERIALS AND METHODS Patients ≥ 20 years of age and pathologically diagnosed with BL or Burkitt-like lymphoma were treated with at least one cycle of R-hyper-CVAD as the first-line treatment in this study. Eligible patients' case report forms were requested from their physicians to obtain clinical and laboratory data for this retrospective study. RESULTS Forty-three patients (median age, 51 years) from 14 medical centers in Korea were analyzed, none of which were infected with human immunodeficiency virus. The majority of patients had advanced diseases, and 24 patients achieved a complete response (75.0%). After a median follow-up period of 20.0 months, 2-year event-free and overall survival rates were 70.9% and 81.4%, respectively. Eleven patients (25.6%) were unable to complete the R-hyper-CVAD regimen, including six patients due to early death. The RDIs of adriamycin, vincristine, methotrexate, and cytarabine were between 60% and 65%, which means less than 25% of patients received greater than 80% of the planned dose of each drug. Poor performance status was related to the lower RDIs of doxorubicin and methotrexate. CONCLUSION R-hyper-CVAD showed excellent treatment outcomes in patients who were suitable for dose-intense chemotherapy. However, management of patients who are intolerant to a dose-intense regimen remains problematic due to the frequent occurrence of treatmentrelated complications.
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Affiliation(s)
- Junshik Hong
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Seok Jin Kim
- Department of Medicine, Samsung Medical Center, Sunkyunkwan University School of Medicine, Seoul, Korea
| | - Jae-Sook Ahn
- Department of Hematology-Oncology, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Moo Kon Song
- Department of Hematology-Oncology, Pusan National University Hospital, Busan, Korea
| | - Yu Ri Kim
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Ho Sup Lee
- Department of Internal Medicine, Kosin University Gospel Hospital, Busan, Korea
| | - Ho-Young Yhim
- Department of Internal Medicine, Chonbuk National University Hospital, Jeonju, Korea
| | - Dok Hyun Yoon
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Min Kyoung Kim
- Department of Internal Medicine, Yeungnam University Medical Center, Daegu, Korea
| | - Sung Yong Oh
- Department of Internal Medicine, Dong-A University Hospital, Busan, Korea
| | - Yong Park
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Yeung-Chul Mun
- Department of Internal Medicine, Ewha Womans University Mokdong Hospital, Seoul, Korea
| | - Young Rok Do
- Department of Hematology-Oncology, Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Hun-Mo Ryoo
- Department of Internal Medicine, Daegu Catholic University Medical Center, Daegu, Korea
| | - Je-Jung Lee
- Department of Hematology-Oncology, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Jae Hoon Lee
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Won Seog Kim
- Department of Medicine, Samsung Medical Center, Sunkyunkwan University School of Medicine, Seoul, Korea
| | - Cheolwon Suh
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Koh SA, Lee KH, Choi EY, Kim MK, Jang BI, Lee SH, Kim KO, Kim KH, Kim JR, Kim SW, Kim SW. Abstract 2084: RhoGDI2 is associated with HGF-mediated tumor invasion through VEGF in stomach cancer. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-2084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
RhoGDP dissociation inhibitor 2(RhoGDI2) has been identified as a regulator of tumor metastasis; however, its role in cancer remains controversial. The aims of this study were to analyze RhoGDI2 in gastric cancer growth and metastasis, and to determine its possible signaling pathway.The level of expression of RhoGDI2 was further confirmed by real time RT-RCR and Western blot analysis. Transfection of cells with RhoGDI2 shRNA resulted in no effects of cell proliferation, as determined with MTT assays. In an in vitro invasion assay, significantly fewer cells transfected with RhoGDI2 shRNA,compared with control cells, were able to invade across a Matrigel membrane barrier. The role of RhoGDI2 in the level of HGF-induced up-regulation of VEGF was measured by knockdown of RhoGDI2 with RhoGDI2 shRNA and a chromatic immuno-precipitation assay.The levels of RhoGDI2 and VEGF were up-regulated in cells treated with HGF in a dose-dependent manner. HGF-induced up-regulation of VEGF was repressed by RhoGDI2 knockdown. HGF-induced upregulation of phosphorylated ERK and P38 levels was inhibited in RhoGDI2 knockdown cells. HGF enhanced the binding activity of RhoGDI2 to the VEGF promoter in control cells, but not in RhoGDI2-shRNA cells. Findings of this study also showed a statistically significant difference in the mean RhoGDI2 level before and after surgery (p<0.01) and the mean level of RhoGDI2 before surgery showed a statistically significant difference depending on lymphatic, neural invasion and stage (p<0.05).
In conclusion, RhoGDI2 might play an important role in up-regulation of VEGF induced by HGF and contributes to HGF-mediated tumor invasion and metastasis, which may serve as a promising target for gastric cancer therapy.
Note: This abstract was not presented at the meeting.
Citation Format: Sung Ae Koh, Kyung Hee Lee, Eun Young Choi, Min Kyoung Kim, Byung Ik Jang, Si Hyung Lee, Kyeong Ok Kim, Kook Hyun Kim, Jae Ryong Kim, Sang Woon Kim, Se Won Kim. RhoGDI2 is associated with HGF-mediated tumor invasion through VEGF in stomach cancer. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 2084. doi:10.1158/1538-7445.AM2014-2084
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Affiliation(s)
- Sung A. Koh
- Yeungnam University Hospital, Daegu, Republic of Korea
| | - Kyung Hee Lee
- Yeungnam University Hospital, Daegu, Republic of Korea
| | | | | | - Byung Ik Jang
- Yeungnam University Hospital, Daegu, Republic of Korea
| | - Si Hyung Lee
- Yeungnam University Hospital, Daegu, Republic of Korea
| | - Kyeong Ok Kim
- Yeungnam University Hospital, Daegu, Republic of Korea
| | - Kook Hyun Kim
- Yeungnam University Hospital, Daegu, Republic of Korea
| | - Jae Ryong Kim
- Yeungnam University Hospital, Daegu, Republic of Korea
| | - Sang Woon Kim
- Yeungnam University Hospital, Daegu, Republic of Korea
| | - Se Won Kim
- Yeungnam University Hospital, Daegu, Republic of Korea
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172
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Koh SA, Kim MK, Lee KH, Kim SW, Kim JR. RhoGDI2 is associated with HGF-mediated tumor invasion through VEGF in stomach cancer. Clin Exp Metastasis 2014; 31:805-15. [PMID: 25253431 DOI: 10.1007/s10585-014-9671-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Accepted: 07/27/2014] [Indexed: 01/06/2023]
Abstract
RhoGDP dissociation inhibitor 2 (RhoGDI2) has been identified as a regulator of tumor metastasis; however, its role in cancer remains controversial. The aims of this study were to analyze RhoGDI2 in gastric cancer growth and metastasis, and to determine its possible signaling pathway. The level of expression of RhoGDI2 was further confirmed by real time RT-RCR and Western blot analysis. Transfection of cells with RhoGDI2 shRNA resulted in no effects of cell proliferation, as determined with MTT assays. In an in vitro invasion assay, significantly fewer cells transfected with RhoGDI2 shRNA, compared with control cells, were able to invade across a Matrigel membrane barrier. The role of RhoGDI2 in the level of HGF-induced up-regulation of vascular endothelial growth factor (VEGF) was measured by knockdown of RhoGDI2 with RhoGDI2 shRNA and a chromatic immuno-precipitation assay. The levels of RhoGDI2 and VEGF were up-regulated in cells treated with HGF in a dose-dependent manner. HGF-induced up-regulation of VEGF was repressed by RhoGDI2 knockdown. HGF-induced upregulation of phosphorylated ERK and P38 levels was inhibited in RhoGDI2 knockdown cells. HGF enhanced the binding activity of RhoGDI2 to the VEGF promoter in control cells, but not in RhoGDI2-shRNA cells. Findings of this study also showed a statistically significant difference in the mean RhoGDI2 level before and after surgery (p < 0.01) and the mean level of RhoGDI2 before surgery showed a statistically significant difference depending on lymphatic, neural invasion and stage (p < 0.05). In conclusion, RhoGDI2 might play an important role in up-regulation of VEGF induced by HGF and contributes to HGF-mediated tumor invasion and metastasis, which may serve as a promising target for gastric cancer therapy.
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Affiliation(s)
- Sung Ae Koh
- Department of Hematology-Oncology, College of Medicine, Yeungnam University, 317-1 Daemyung-Dong, Taegu, 705-717, Republic of Korea
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173
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Lee GW, Go SI, Kim SH, Hong J, Kim YR, Oh S, Kim SY, Do YR, Lee H, Lee SI, Bae SH, Oh SY, Song MK, Lee WS, Lee B, Kim JS, Kim MK, Kang HJ, Ahn JS, Yhim HY, Kim HJ, Kim SJ, Kim WS, Suh C. Clinical outcome and prognosis of patients with primary sinonasal tract diffuse large B-cell lymphoma treated with rituximab-cyclophosphamide, doxorubicin, vincristine and prednisone chemotherapy: a study by the Consortium for Improving Survival of Lymphoma. Leuk Lymphoma 2014; 56:1020-6. [DOI: 10.3109/10428194.2014.946027] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
BACKGROUND Previous studies have reported the protective effects on skin elasticity of the edible marine seaweed Ecklonia cava, which acts through regulation of both antioxidative and anti-inflammatory responses. AIM We evaluated the effect of E. cava and one of its components, dioxinodehydroeckol, on hair-shaft growth in cultured human hair follicles and on hair growth in mice. METHODS The MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay was used to check cell viability of human dermal papilla cells (DPCs) and outer root sheath (ORS) cells after treatment with E. cava and its metabolite, dioxinodehydroeckol. Hair-shaft growth was measured using the in vitro hair-follicle organ-culture system, in the presence or absence of E. cava and dioxinodehydroeckol. Anagen induction activity was examined by topical application of E. cava to the dorsal skin of C57BL/6 mice. Insulin-like growth factor (IGF)-1 expression was measured by reverse transcriptase PCR and ELISA. RESULTS The proliferation activity was found to be highest for the ethyl acetate-soluble fraction of E. cava (EAFE) in DPCs and in ORS cells. Treatment with EAFE resulted in elongation of the hair shaft in cultured human hair follicles, and promoted transition of the hair cycle from the telogen to the anagen phase in the dorsal skin of C57BL/6 mice. In addition, EAFE induced an increase in IGF-1 expression in DPCs. Dioxinodehydroeckol, a component of E. cava, induced elongation of the hair shaft, an increase in proliferation of DPCs and ORS cells, and an increase in expression of IGF-1 in DPCs. CONCLUSIONS These results suggest that E. cava containing dioxinodehydroeckol promotes hair growth through stimulation of DPCs and ORS cells.
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Affiliation(s)
- S S Bak
- Marine Bioprocess Research Center, Pukyong National University, Busan, Korea
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175
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Kim MK, Shin J, Kweon SS, Shin DH, Lee YH, Chun BY, Choi BY. Harmful and beneficial relationships between alcohol consumption and subclinical atherosclerosis. Nutr Metab Cardiovasc Dis 2014; 24:767-776. [PMID: 24694837 DOI: 10.1016/j.numecd.2014.02.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 01/20/2014] [Accepted: 02/03/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND AIMS Arterial stiffness and increased intima-media wall thickness are two of the main predictors of cardiovascular disease (CVD). We evaluated whether brachial-ankle pulse wave velocity (baPWV) and common carotid artery intima-media wall thickness (CCA-IMT) are correlated with alcohol consumption in a cross-sectional study among Korean men and women aged 40 years and over. METHODS AND RESULTS All 5539 subjects (2121 men and 3418 women) were participants in the Multi-Rural Communities cohort (MRcohort) study, a part of the Korean Genome Epidemiology Study (KoGES). The baPWV was positively correlated with alcohol consumption in men (p for trend <0.0001). Age (middle-aged versus elderly) modified the effect of alcohol consumption on PWV. On the other hand CCA-IMT decreased with alcohol consumption in men. There was no favorable zone of alcohol consumption in terms of baPWV and CCA-IMT. Adjustment for lipid profiles substantially attenuated the relationship between alcohol consumption and CCA-IMT. There was no clear relation between alcohol consumption and baPWV/CCA-IMT in women. CONCLUSIONS Along with a linear harmful relationship between alcohol consumption and arterial stiffness in men there may also be a beneficial relationship between alcohol consumption and carotid intima-wall thickness. The effect of alcohol on arterial stiffness may be slightly stronger in elderly men, and the effect of alcohol on CCA-IMT may be mediated by lipid factors.
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Affiliation(s)
- M K Kim
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea.
| | - J Shin
- Department of Internal Medicine, College of Medicine, Hanyang University, Seoul, South Korea
| | - S-S Kweon
- Department of Preventive Medicine, Chonnam National University Medical School, Gwangju, South Korea; Jeonnam Regional Cancer Center, Chonnam National University Hwasun Hospital, Hwasun, South Korea
| | - D H Shin
- Department of Occupational and Environmental Medicine, Keimyung University Dongsan Medical Center, Daegu, South Korea
| | - Y-H Lee
- Department of Preventive Medicine & Institute of Wonkwang Medical Science, Wonkwang University College of Medicine, Iksan, South Korea
| | - B-Y Chun
- Department of Preventive Medicine, School of Medicine, and Health Promotion Research Center, Kyungpook National University, Daegu, South Korea
| | - B Y Choi
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea
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176
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Kim H, Lee KH, Kim I, Sohn SK, Jung CW, Joo YD, Kim SH, Kim BS, Choi JH, Kwak JY, Kim MK, Bae SH, Shin HJ, Won JH, Lee WS, Oh S, Kim HJ, Park JH. Allogeneic hematopoietic cell transplantation without total body irradiation from unrelated donor in adult patients with idiopathic aplastic anemia: fludarabine versus cyclophosphamide-ATG. Leuk Res 2014; 38:730-6. [PMID: 24840870 DOI: 10.1016/j.leukres.2014.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 12/23/2013] [Accepted: 01/02/2014] [Indexed: 11/19/2022]
Abstract
Total body irradiation (TBI) has traditionally been used in the conditioning regimen for allogenetic hematopoietic stem cell transplantation (alloHCT) from an unrelated donor (u-HCT). However, patients are increasingly receiving a fludarabine-based conditioning regimen without TBI, as it seemed less toxic than TBI. We need to know the clinical results of non-TBI u-HCT treatments. We retrospectively investigated the clinical outcomes of allogenetic hematopoietic cell transplantation (alloHCT) from an unrelated donor without TBI (non-TBI u-HCT) and compared the clinical outcomes of fludarabine-based (FLU group) and cyclophosphamide-ATG (Cy-ATG group) conditioning regimens. Sixty-one patients received the non-TBI conditioning regimen for u-HCT (32 in the FLU group and 29 in the Cy-ATG group). The cumulative incidence of neutrophil engraftment at 30 days, platelet>20K/μL at 30 days, acute graft-versus host disease (aGvHD) at 100 days, and chronic GvHD (cGvHD) at 2 years were 87.01%, 65.57%, 35.20%, and 26.64%, respectively. However, transplantation outcomes and overall survival rates did not differ between the FLU and Cy-ATG groups. Only infused CD34+ cells >3×10(6)kg(-1) was identified as a favorable factor for survival in the multivariate analysis. In conclusion, non-TBI u-HCT was feasible and there was no difference between the FLU and Cy-ATG groups in terms of transplantation outcomes.
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Affiliation(s)
- Hawk Kim
- Ulsan University Hospital, 877 Baneojinsunwhan-doro, Ulsan, Republic of Korea.
| | - Kyoo-Hyung Lee
- Asan Medical Center, 86 Asanbyeongwon-gil, Seoul, Republic of Korea
| | - Inho Kim
- Seoul National University Hospital, 101 Daehang-ro, Seoul, Republic of Korea
| | - Sang Kyun Sohn
- Kyungpook National University Hospital, 135, Dongdeok-ro, Daegu, Republic of Korea
| | - Chul Won Jung
- Samsung Medical Center, 50 Irwon-dong, Gangnam-gu, Seoul, Republic of Korea
| | - Young Don Joo
- Inje University Haeundae Paik Hospital, 875 Haeundae-ro, Busan, Republic of Korea
| | - Sung-Hyun Kim
- Dong-A University Medical Center, 26 Daesingongwon-ro, Busan, Republic of Korea
| | - Byung Soo Kim
- Korea University Hospital Seoul Hospital, 73 Inchon-ro, Seoul, Republic of Korea
| | - Jung Hye Choi
- Hanyang University Hospital, 222 Wangsimni-ro, Seoul, Republic of Korea
| | - Jae-Yong Kwak
- Chonbuk National University Hospital, 20 Geonji-ro, Jeonju-si, Jeollabuk-do, Republic of Korea
| | - Min Kyoung Kim
- Yeungnam University Medical Center, 170 Hyeonchung-ro, Daegu, Republic of Korea
| | - Sung Hwa Bae
- Daegu Catholic University Hospital, 33 Duryugongwon-ro 17-gil, Daegu, Republic of Korea
| | - Ho Jin Shin
- Pusan National University Hospital, 179 Gudeok-ro, Busan, Republic of Korea
| | - Jong-Ho Won
- Soonchunhyang University Seoul Hospital, 59 Dassagwan-ro, Seoul, Republic of Korea
| | - Won Sik Lee
- Inje University Busan Paik Hospital, 75 Bokji-ro, Busan, Republic of Korea
| | - Sukjoong Oh
- Kangbuk Samsung Hospital, 29 Saemunan-ro, Seoul, Republic of Korea
| | - Hyo Jung Kim
- Hallym University Sacred Heart Hospital, Hallym University Medical Center, Anyang, Republic of Korea.
| | - Jae-Hoo Park
- Ulsan University Hospital, 877 Baneojinsunwhan-doro, Ulsan, Republic of Korea.
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Koh SA, Lee KH, Choi EY, Kim MK, Kim JR, Kim SW. Association of RhoGDI2 with HGF-mediated tumor invasion through VEGF in stomach cancer. J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.15_suppl.e22007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Sung Ae Koh
- Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, South Korea
| | - Kyung Hee Lee
- Department of Hemato-oncology, Yeungnam University Hospital, Daegu, South Korea
| | - Eun Young Choi
- Departments of Hematology-Oncology College of Medicine, Yeungnam University, Daegu, South Korea
| | - Min Kyoung Kim
- Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, South Korea
| | - Jae-Ryong Kim
- Molecular Biology,College of Medicine, Yeungnam University, Daegu, South Korea
| | - Sang Woon Kim
- Department of Surgery, College of Medicine, Yeungnam University, Daegu, South Korea
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178
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Kang BW, Sohn SK, Moon JH, Chae YS, Kim JG, Lee SJ, Kim WS, Lee JJ, Lee SR, Park KU, Lee HS, Lee WS, Won JH, Park MR, Kwak JY, Kim MK, Kim HJ, Oh SY, Kang HJ, Suh C. Clinical features and treatment outcomes in patients with mantle cell lymphoma in Korea: Study by the Consortium for Improving Survival of Lymphoma. Blood Res 2014; 49:15-21. [PMID: 24724062 PMCID: PMC3974951 DOI: 10.5045/br.2014.49.1.15] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 12/05/2013] [Accepted: 02/19/2014] [Indexed: 12/11/2022] Open
Abstract
Background We investigated the clinical features and treatment outcomes of patients with mantle cell lymphoma (MCL) in Korea. Methods We retrospectively analyzed the clinical characteristics and prognosis of 131 patients diagnosed with MCL between January 2004 and December 2009 at 15 medical centers in Korea; all patients received at least 1 chemotherapeutic regimen for MCL. Results The median age for the patients was 63 years (range, 26-78 years), and 77.9% were men. A total of 105 patients (80.1%) had stage III or IV MCL at diagnosis. Fifty-two patients (39.7%) were categorized with high- or high-intermediate risk MCL according to the International Prognostic Index (IPI). Eighteen patients (13.7%) were in the high-risk group according to the simplified MCL-IPI (MIPI). The overall incidence of extranodal involvement was 69.5%. The overall incidence of bone marrow and gastrointestinal involvements at diagnosis was 41.2% and 35.1%, respectively. Cyclophosphamide, doxorubicin, vincristine, prednisolone, and rituximab were used frequently as the first-line treatment (41.2%). With a median follow-up duration of 20.0 months (range, 0.2-77.0 months), the overall survival (OS) at 2 years was 64.7%, while the event-free survival (EFS) was 39.7%. Multivariate analysis showed that the simplified MIPI was significantly associated with OS. However, the use of a rituximab-containing regimen was not associated with OS and EFS. Conclusion Similar to results from Western countries, the current study found that simplified MIPI was an important prognostic factor in Korean patients with MCL.
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Affiliation(s)
- Byung Woog Kang
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Sang Kyun Sohn
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Joon Ho Moon
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Yee Soo Chae
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Jong Gwang Kim
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Soo Jung Lee
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Won Seog Kim
- Department of Hematology/Oncology, Internal Medicine, Samsung Medical Center, Seoul, Korea
| | - Je-Jung Lee
- Department of Hematology/Oncology, Internal Medicine, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Se Ryeon Lee
- Department of Hematology/Oncology, Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Keon Uk Park
- Department of Hematology/Oncology, Internal Medicine, Keimyung University Dongsan Medical Center, Daegu, Korea
| | - Ho Sup Lee
- Department of Hematology/Oncology, Internal Medicine, Kosin University Gospel Hospital, Busan, Korea
| | - Won Sik Lee
- Department of Hematology/Oncology, Internal Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Jong-Ho Won
- Department of Hematology/Oncology, Internal Medicine, Soonchunhyang University Hospital, Seoul, Korea
| | - Moo-Rim Park
- Department of Hematology/Oncology, Internal Medicine, Wonkwang University Hospital, Iksan, Korea
| | - Jae-Yong Kwak
- Department of Hematology/Oncology, Internal Medicine, Chonbuk National University Hospital, Jeonju, Korea
| | - Min Kyoung Kim
- Department of Hematology/Oncology, Internal Medicine, Yeungnam University Medical Center, Daegu, Korea
| | - Hyo Jung Kim
- Department of Hematology/Oncology, Internal Medicine, Hallym University Scared Heart Hospital, Anyang, Korea
| | - Sung Yong Oh
- Department of Hematology/Oncology, Internal Medicine, Dong-A University Hospital, Busan, Korea
| | - Hye Jin Kang
- Department of Hematology/Oncology, Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Cheolwon Suh
- Department of Hematology/Oncology, Internal Medicine, Asan Medical Center, Seoul, Korea
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Lee KH, Choi EY, Koh SA, Kim MK, Jang BI, Kim SW, Kim JR. IL-1β-stimulated urokinase plasminogen activator expression through NF-κB in gastric cancer after HGF treatment. Oncol Rep 2014; 31:2123-30. [PMID: 24626561 DOI: 10.3892/or.2014.3086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 02/19/2014] [Indexed: 11/05/2022] Open
Abstract
The potential of hepatocyte growth factor (HGF) to regulate the expression of urokinase plasminogen activator (uPA) in a gastric cancer cell is not widely acknowledged. To identify the genes associated with the plasminogen activator proteolytic axis by HGF, we used cDNA microarray technology and selected genes upregulated or downregulated in two gastric cell lines (NUGC-3 and MKN-28). First, IL-1β RNA and protein were confirmed to be upregulated. Then, we investigated the effect of IL-1β induced by HGF on the uPA system, facilitating the migration and invasion of cancer cells in the metastatic process. The role for IL-1β in HGF-induced upregulation of uPA was determined by knockdown of IL-1β with IL-1β shRNA and a chromatin immune precipitation assay. The levels of IL-1β and uPA were upregulated in cells treated with HGF in a dose-dependent manner. HGF-induced upregulation of uPA was suppressed by IL-1β knockdown. HGF enhanced the binding activity of NF-κB to the uPA promoter in control cells, but not in the IL-1β shRNA cells. We confirmed the functional role of HGF inactivation of the uPA promoter by a reporter gene assay. Downregulation of IL-1β using IL-1β shRNA also decreased cell proliferation and in vitro cell invasion. IL-1β stimulated uPA expression through ERK and NF-κB in gastric cancer, which may therefore be promising targets for gastric cancer therapy.
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Affiliation(s)
- Kyung Hee Lee
- Department of Hematology-Oncology, College of Medicine, Yeungnam University, Daegu 705-717, Republic of Korea
| | - Eun Young Choi
- Department of Hematology-Oncology, College of Medicine, Yeungnam University, Daegu 705-717, Republic of Korea
| | - Sung Ae Koh
- Department of Hematology-Oncology, College of Medicine, Yeungnam University, Daegu 705-717, Republic of Korea
| | - Min Kyoung Kim
- Department of Hematology-Oncology, College of Medicine, Yeungnam University, Daegu 705-717, Republic of Korea
| | - Byung Ik Jang
- Department of Gastro-Enterology, College of Medicine, Yeungnam University, Daegu 705-717, Republic of Korea
| | - Sang Woon Kim
- Department of Surgery, College of Medicine, Yeungnam University, Daegu 705-717, Republic of Korea
| | - Jae-Ryong Kim
- Department of Biochemistry and Molecular Biology, College of Medicine, Yeungnam University, Daegu 705-717, Republic of Korea
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Lee HY, Lee KH, Hyun MS, Kim MK, Koh SA, Cho HS. Chronic myeloid leukemia as a secondary malignancy after diffuse large B-cell lymphoma. Korean J Intern Med 2014; 29:250-2. [PMID: 24648811 PMCID: PMC3956998 DOI: 10.3904/kjim.2014.29.2.250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Revised: 07/10/2013] [Accepted: 08/19/2013] [Indexed: 11/27/2022] Open
MESH Headings
- Adult
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Benzamides/therapeutic use
- Bone Marrow Examination
- Chemoradiotherapy
- Cyclophosphamide/administration & dosage
- Doxorubicin/administration & dosage
- Humans
- Imatinib Mesylate
- Karyotyping
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Lymphoma, Large B-Cell, Diffuse/diagnosis
- Lymphoma, Large B-Cell, Diffuse/pathology
- Lymphoma, Large B-Cell, Diffuse/therapy
- Male
- Neoplasms, Second Primary
- Piperazines/therapeutic use
- Positron-Emission Tomography
- Prednisolone/administration & dosage
- Protein Kinase Inhibitors/therapeutic use
- Pyrimidines/therapeutic use
- Time Factors
- Tomography, X-Ray Computed
- Treatment Outcome
- Vincristine/administration & dosage
- Whole Body Imaging/methods
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Affiliation(s)
- Ha-young Lee
- Division of Hematology and Oncology, Department of Internal Medicine, Cancer Center Dongnam Institute Radiological and Medical Sciences, Busan, Korea
| | - Kyung Hee Lee
- Division of Hematology and Oncology, Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Myung Soo Hyun
- Division of Hematology and Oncology, Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Min Kyoung Kim
- Division of Hematology and Oncology, Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Sung Ae Koh
- Division of Hematology and Oncology, Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Hee Soon Cho
- Department of Laboratory Medicine, Yeungnam University College of Medicine, Daegu, Korea
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181
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Abstract
The self-assembly of multi-component monolayers with designed patterns requires molecular recognition among components. Dipolar interactions have been found to influence morphologies of self-assembled monolayers and can affect molecular recognition functions. Ketone groups have large dipole moments (2.6 D) and are easily incorporated into molecules. The potential of ketone groups for dipolar patterning has been evaluated through synthesis of two 1,5-disubstituted anthracenes bearing mono-ketone side chains, STM characterization of monolayers self-assembled from their single and two component solutions and molecular mechanics simulations to determine their self-assembly energetics. The results reveal that (i) anthracenes bearing self-repulsive mono-ketone side chains assemble in an atypical monolayer morphology that establishes dipolar attraction, instead of repulsion, between ketones in adjacent side chains; (ii) pairs of anthracene molecules whose self-repulsive ketone side chains are dipolar complementary spontaneously assemble compositionally patterned monolayers, in which the two components segregate into neighboring, single component columns, driven by side chain dipolar interactions; (iii) compositionally patterned monolayers also assemble from dipolar complementary anthracene pairs that employ different dipolar groups (ketones or CF2 groups) in their side chains; (iv) the ketone group, with its larger dipole moment and size, provides comparable driving force for patterned monolayer formation to that of the smaller dipole, and smaller size, CF2 group.
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Affiliation(s)
- Min Kyoung Kim
- Department of Chemistry, Brown University, Providence, RI, USA
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182
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Kim SJ, Cheong JW, Min YH, Choi YJ, Lee DG, Lee JH, Yang DH, Lee SM, Kim SH, Kim YS, Kwak JY, Park J, Kim JY, Kim HG, Kim BS, Ryoo HM, Jang JH, Kim MK, Kang HJ, Cho IS, Mun YC, Jo DY, Kim HY, Park BB, Kim JS. Success rate and risk factors for failure of empirical antifungal therapy with itraconazole in patients with hematological malignancies: a multicenter, prospective, open-label, observational study in Korea. J Korean Med Sci 2014; 29:61-8. [PMID: 24431907 PMCID: PMC3890478 DOI: 10.3346/jkms.2014.29.1.61] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Accepted: 11/22/2013] [Indexed: 11/20/2022] Open
Abstract
We assessed the success rate of empirical antifungal therapy with itraconazole and evaluated risk factors for predicting the failure of empirical antifungal therapy. A multicenter, prospective, observational study was performed in patients with hematological malignancies who had neutropenic fever and received empirical antifungal therapy with itraconazole at 22 centers. A total of 391 patients who had abnormal findings on chest imaging tests (31.0%) or a positive result of enzyme immunoassay for serum galactomannan (17.6%) showed a 56.5% overall success rate. Positive galactomannan tests before the initiation of the empirical antifungal therapy (P=0.026, hazard ratio [HR], 2.28; 95% confidence interval [CI], 1.10-4.69) and abnormal findings on the chest imaging tests before initiation of the empirical antifungal therapy (P=0.022, HR, 2.03; 95% CI, 1.11-3.71) were significantly associated with poor outcomes for the empirical antifungal therapy. Eight patients (2.0%) had premature discontinuation of itraconazole therapy due to toxicity. It is suggested that positive galactomannan tests and abnormal findings on the chest imaging tests at the time of initiation of the empirical antifungal therapy are risk factors for predicting the failure of the empirical antifungal therapy with itraconazole. (Clinical Trial Registration on National Cancer Institute website, NCT01060462).
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Affiliation(s)
- Soo-Jeong Kim
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, Seoul, Korea
| | - June-Won Cheong
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, Seoul, Korea
| | - Yoo Hong Min
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, Seoul, Korea
| | - Young Jin Choi
- Department of Hematology/Oncology, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
| | - Dong-Gun Lee
- Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Je-Hwan Lee
- Department of Hematology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Deok-Hwan Yang
- Department of Hematology/Oncology, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Sang Min Lee
- Department of Internal Medicine, Busan Paik Hospital, Inje University, Busan, Korea
| | - Sung-Hyun Kim
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea
| | - Yang Soo Kim
- Department of Internal Medicine, Kosin University Gospel Hospital, Busan, Korea
| | - Jae-Yong Kwak
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea
| | - Jinny Park
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Jin Young Kim
- Department of Internal Medicine, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Hoon-Gu Kim
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Byung Soo Kim
- Department of Internal Medicine, Korea University Medical Center, Seoul, Korea
| | - Hun-Mo Ryoo
- Department of Internal Medicine, Daegu Catholic University Medical Center, Daegu, Korea
| | - Jun Ho Jang
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Min Kyoung Kim
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Hye Jin Kang
- Department of Internal Medicine, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
| | - In Sung Cho
- Department of Internal Medicine, Eulji University Hospital, Daejeon, Korea
| | - Yeung Chul Mun
- Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Deog-Yeon Jo
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea
| | - Ho Young Kim
- Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Byeong-Bae Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jin Seok Kim
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Severance Hospital, Seoul, Korea
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183
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Vila PM, Kingsley MJ, Polydorides AD, Protano MA, Pierce MC, Sauk J, Kim MK, Patel K, Godbold JH, Waye JD, Richards-Kortum R, Anandasabapathy S. Accuracy and interrater reliability for the diagnosis of Barrett's neoplasia among users of a novel, portable high-resolution microendoscope. Dis Esophagus 2014; 27:55-62. [PMID: 23442220 PMCID: PMC3795799 DOI: 10.1111/dote.12040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The high-resolution microendoscope (HRME) is a novel imaging modality that may be useful in the surveillance of Barrett's esophagus in low-resource or community-based settings. In order to assess accuracy and interrater reliability of microendoscopists in identifying Barrett's-associated neoplasia using HRME images, we recruited 20 gastroenterologists with no microendoscopic experience and three expert microendoscopists in a large academic hospital in New York City to interpret HRME images. They prospectively reviewed 40 HRME images from 28 consecutive patients undergoing surveillance for metaplasia and low-grade dysplasia and/or evaluation for high-grade dysplasia or cancer. Images were reviewed in a blinded fashion, after a 4-minute training with 11 representative images. All imaged sites were biopsied and interpreted by an expert pathologist. Sensitivity of all endoscopists for identification of high-grade dysplasia or cancer was 0.90 (95% confidence interval [CI]: 0.88-0.92) and specificity was 0.82 (95% CI: 0.79-0.85). Positive and negative predictive values were 0.72 (95% CI: 0.68-0.77) and 0.94 (95% CI: 0.92-0.96), respectively. No significant differences in accuracy were observed between experts and novices (0.90 vs. 0.84). The kappa statistic for all raters was 0.56 (95% CI: 0.54-0.58), and the difference between groups was not significant (0.64 vs. 0.55). These data suggest that gastroenterologists can diagnose Barrett's-related neoplasia on HRME images with high sensitivity and specificity, without the aid of prior microendoscopy experience.
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Affiliation(s)
- P M Vila
- Mount Sinai School of Medicine, New York, New York, USA
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184
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Yoon BS, Seong SJ, Song T, Kim ML, Kim MK. Rectus abdominis muscle resection and fascial reconstruction for the treatment of uterine leiomyosarcoma invading the abdominal wall: a case report. EUR J GYNAECOL ONCOL 2014; 35:449-451. [PMID: 25118490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The authors present a case of intra-abdominal recurrent leiomyosarcoma invading a large area of the abdominal wall. The patient underwent cytoreductive surgery, including resection of the rectus abdominis muscle, followed by reconstruction of the defect using synthetic mesh. The tumor was surgically removed by en bloc resection, including most of the rectus abdominis muscle and ileum. The abdominal wall defect was repaired using synthetic mesh. The patient underwent radiotherapy and chemotherapy after the surgery and was healthy one year later.
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185
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Affiliation(s)
- T Song
- Departments of Obstetrics and Gynaecology
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186
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Yoo TK, Han W, Moon HG, Kim J, Lee JW, Kim MK, Lee E, Kim J, Noh DY. Abstract P6-06-08: Impact of initial surgical treatment delay on survival according to hormone responsiveness in breast cancer. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p6-06-08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Previous studies on the issue of the prognostic importance of treatment delay in breast cancer have shown inconsistent results. Furthermore, the association between the impact of treatment delay and molecular characteristics of tumors has not been adequately addressed. The purpose of this study is to examine the prognostic impact of initial surgical treatment delay after biopsy-proven cancer diagnosis in breast cancer patients.
A total of 1,393 consecutive invasive breast cancer patients, treated in Seoul National University Hospital, Seoul, Korea, between July 2006 and June 2008, were included in this study. Patients with in situ or metastatic carcinoma at the time of diagnosis and patients in whom the dates of the initial pathologic diagnosis were unknown were excluded.
The median time from biopsy-confirmed cancer diagnosis to initial surgical treatment was 25 days (range 0-134). When the patients were classified according to their treatment delay days (0 to 29, 30 to 59, and ≥60days), there was no difference in survival between ‘0-29days’ group and ‘30-59days’ group. However, for patients who experienced more than 60 days of initial delay in surgical treatment, the survival was significantly worse when compared to other groups (p = 0.034). The association between the treatment delay and poor outcome was only seen in patients with ER and PR negative tumors (p = 0.018) while patients with hormone-responsive tumors showed no such association. Patients with ER and PR negative tumors developed more recurrence and had shorter disease-free survival if they had treatment delay of more than 60 days. The prognostic importance of treatment delay of more than 60 days remained significant in predicting disease-free survival after adjusting for other known prognostic factors such as age, tumor size, nodal status, cancer stage, nuclear grade and Ki-67 expression (HR 5.127; 95% CI, 1.350 to 19.472; p = 0.016).
Our results suggest that having treatment delay of more than 60 days is associated with poor treatment outcome in patients with ER and PR negative breast cancer.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P6-06-08.
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Affiliation(s)
- T-K Yoo
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - W Han
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H-G Moon
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - JW Lee
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - MK Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - E Lee
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D-Y Noh
- Seoul National University College of Medicine, Seoul, Republic of Korea
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187
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Lee HC, Lee JH, Kim MK, Kil WH, Kim J, Lee JE, Kim SW, Nam SJ, Kim SM, Bae SY, Lee SK, Kim J. Abstract P2-18-04: No further axillary dissection in sentinel lymph node-negative breast cancer after neoadjuvant chemotherapy in patients with initial cytologically-proven axillary node metastasis. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p2-18-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
In patients with fine needle aspiration (FNA)-proven axillary lymph node metastasis at diagnosis (cN+), the current standard surgical procedure is axillary lymph node dissection (ALND) at definitive surgery after neoadjuvant chemotherapy (NAC). However, growing evidences suggest that SLNB after NAC is feasible and may demonstrate acceptable performance in selected patients. We performed sentinel lymph node biopsy in patients treated with cytologically-confirmed axillary lymph nodes metastases at presentation, who converted to a clinically negative axillary status after NAC (ycN0).
Patients and methods
We retrospectively evaluated 240 patients with invasive breast cancer with ultrasound-guided FNA-proven axillary nodal metastases at the time of diagnosis. All patients received NAC and underwent surgery at Samsung medical center between October 2007 and May 2013. Among these patients, 75 patients underwent SLNB. These patients converted to clinically node-negative disease (ycN0) after NAC on breast MRI or PET/CT scan. A combined detection technique was used with radioisotope and blue dye for the detection of SLN. Patients with negative SLN on frozen pathology and low clinical suspicion of metastasis during operation were not performed further ALND.
Results
The detection rate of SLNB was 93.3% (70/75), and median number of retrieved sentinel lymph nodes was 3.0 (range 1-8). False negative rate was 6.7% (1/15). Of these 75 patients, 35 (46.6%) patients had positive sentinel lymph nodes (ypN+) and underwent ALND. Thirty-five (46.6%) patients had tumor-free sentinel lymph nodes (ypN0sn) and 20 patients of them were followed without subsequent ALND. In these SLN-negative patients without further ALND, 9 patients were HER2-enriched subtypes and 9 patients, TNBC subtypes. Only two of them were Luminal B subtypes. The median follow-up period was 12.0 months (range 0-26 months) with 2 events; 1 regional recurrence in ipsilateral supraclavicular node and 1 systemic recurrence in brain on postoperative 7 months and 5 months, respectively. There has not occurred an ipsilateral axillary recurrence so far.
Conclusions Although the follow-up was not long enough to conclude, this study tried to demonstrate that SLNB after NAC was feasible and further ALND may not be necessary in patients with SLN-negative disease (ypN0sn).
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P2-18-04.
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Affiliation(s)
- HC Lee
- Samsung Medical Center, Seoul, Korea
| | - JH Lee
- Samsung Medical Center, Seoul, Korea
| | - MK Kim
- Samsung Medical Center, Seoul, Korea
| | - WH Kil
- Samsung Medical Center, Seoul, Korea
| | - J Kim
- Samsung Medical Center, Seoul, Korea
| | - JE Lee
- Samsung Medical Center, Seoul, Korea
| | - SW Kim
- Samsung Medical Center, Seoul, Korea
| | - SJ Nam
- Samsung Medical Center, Seoul, Korea
| | - SM Kim
- Samsung Medical Center, Seoul, Korea
| | - SY Bae
- Samsung Medical Center, Seoul, Korea
| | - SK Lee
- Samsung Medical Center, Seoul, Korea
| | - J Kim
- Samsung Medical Center, Seoul, Korea
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188
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Kim MK, Moon HG, Kim J, Lee JW, Kim J, Lee ES, Yoo TK, Noh DY, Han W. Abstract P3-14-20: Neoadjuvant chemotherapy in young age breast cancer: Survival benefit over adjuvant chemotherapy in clinically T2 node positive patients. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p3-14-20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The downstaging of the primary tumor and the increase in breast conservation rates seems to be the only clinical benefit of Neoadjuvant systemic therapy(NST) in breast cancer treatment, given that several studies failed to demonstrate an improvement of overall survival compared with postoperative adjuvant chemotherapy. In Europe, S6 trial showed better early outcome in survival in favour of the neoadjuvant chemotherapy group compared to adjuvant chemotherapy group in premenopausal patients without significantly modifying long-term event rates. The aim of this study was to assess a potential advantage in survival by neoadjuvant as compared to adjuvant chemotherapy in young age breast cancer patients.
Methods: Between January 2001 and December 2008, 1169 consecutive patients with breast cancer aged under 40 underwent adjuvant chemotherapy before or after surgery. Prospectively collected medical records for all patients were reviewed retrospectively. For the comparison of survival between neoadjuvant versus adjuvant chemotherapy group, cinically T2 and node positive patients were retrieved. Survival curves were derived from Kaplan-Meier estimates and compared by log-rank test.
Results: Of the 1169 patients, 203(17.3%) patients were treated with neoadjuvant chemotherapy, and they were grouped as ‘NST’ and ‘non-NST’ according to initial treatment. About 47% patients in each group were clinically T2 patients. (99(47.8%) in NST group, 453(46.9%) in non-NST group) Among them, clinically T2 and node positive patients were 188, 97 patients in NST group, 91 patients in non-NST group each. The median age was 35.11±3.9 years old and HER2 amplification was observed as 23.5%, and they were not different between two groups.(p = 0.146 and 0.941 each) Significant lower hormone receptor expression rate and higher Ki-67 level were observed in NST group(p = 0.03 and <0.0001 each) Breast conservation surgery rate was also significantly different between two groups, more favorable results in NST group.(67% in NST group, 37.4% in non-NST group, p<0.0001) During median follow-up period of 61 months (range 44 to 148 months), we observed a statistically significant difference (p = 0.011) in survival in favour of the NST group. This benefit of survival was presented consistently regardless of hormone receptor expression. A similar trend was seen when the time to distant disease recurrence was evaluated (p = 0.176). And this trend was more prominent in hormone receptor negative patients, but still not statistically significant. (p = 0.144) The mean total dose of chemotherapy administered was similar in both groups. Improved survival figures in the NST group could be the result of the early initiation of systemic treatment, but the trend in favour of decreased metastases was not statistically significant.
Conclusion: A potential advantage of primary over adjuvant chemotherapy in young age breast cancer patients’ survival might be proposed by this results.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P3-14-20.
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Affiliation(s)
- MK Kim
- Seoul National University Hospital, Seoul, Korea
| | - H-G Moon
- Seoul National University Hospital, Seoul, Korea
| | - J Kim
- Seoul National University Hospital, Seoul, Korea
| | - JW Lee
- Seoul National University Hospital, Seoul, Korea
| | - J Kim
- Seoul National University Hospital, Seoul, Korea
| | - ES Lee
- Seoul National University Hospital, Seoul, Korea
| | - T-K Yoo
- Seoul National University Hospital, Seoul, Korea
| | - D-Y Noh
- Seoul National University Hospital, Seoul, Korea
| | - W Han
- Seoul National University Hospital, Seoul, Korea
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189
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Kim J, Lee HS, In YH, Moon HG, Lee M, Lee JW, Kim MK, Kim J, You T, Lee E, Park J, Noh DY, Kim S, Han W. Abstract P4-04-09: Extensive novel hybrid isoforms revealed by RNA sequencing of 120 primary breast cancer samples. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p4-04-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction
Recent studies of next generation sequencing (NGS) have highlighted the extensive transcriptional heterogeneity of cancer cells. Alternative splicing is one of the evolutionary process by which cells and tissues achieve their specificity within central dogma. Also it is highly assumed to contribute to oncogenesis and thought to be a critical mechanism how cancer cells gain resistance to therapeutic agents and adapt to various circumstances. Relevance of differential splicing in breast cancer biology is mostly unknown. We performed whole transcriptome sequencing (RNA-Seq) to reveal novel splicing alterations among 120 primary breast cancer samples.
Materials and Method
Total RNA was prepared using the Illumina TrueSeq™ RNA sample Preparation Kit and TrueSeq mRNA library was constructed. Clustering and sequencing was done using Illumina HiSeq 2000. RNA-Seq reads were aligned to human reference genome(hg19) using TopHat software and expression was measured using cufflinks software. We used tissues extracted from previously collected 120 fresh-frozen primary breast cancer samples obtained after surgical resection whose clinicopathological data are available. Patients undergone neoadjuvant systemic therapies or stage lV disease at diagnosis were excluded. Thirty-six(30%) cases occurred distant metastasis during follow up. Hormone receptor(HR) was positive in 61(50.8%) samples, 20(16.7%) had HER2 oncogene overexpression and 36(30%) were triple negative breast cancer.
Results and discussion
Total 11345 novel isoforms were detected among 120 tumors. Isoforms of pseudo-genes and exon skipping of the ‘non-coding exon’ were excluded. Splice variants detected in normal reference were sorted out as well. 4045 were in-frame exon skipping and 4960 were off-frame exon skipping which may lead to protein truncation. 5036 were private exon skipping and 3969 isoforms were detected recurrently in more than 2 samples. To minimize false positivity we confined ‘exon skipping’ analysis to those with the expression level (Fragments per kilo-base of exon per million fragments mapped, FPKM) of the skipped exon below 0.1 compared to the adjacent exons. Mean number of exon skipping events per sample was 196.8 (range 75-299, SD 35.9). There were no differences in numbers of exon skipping event among breast cancer subtypes nor distant metastasis. We have identified novel exon skipping in ESR1, CHEK2, EIF3E, FGFR, MAP2K, PIK3R2, TERT, VAV3 genes which is strongly suspected to be novel driver isoforms and is under validation process.
Conclusion We performed whole-transcriptome sequencing with a large set of primary breast cancer samples and revealed extensive transcriptional heterogeneity by isoform profiling. As distinguishing the natural transcriptomic dynamics from oncogenic ‘driver’ isoform is a major challenge, validation and functional studies are ongoing.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P4-04-09.
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Affiliation(s)
- J Kim
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - H-S Lee
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - Y-H In
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - H-G Moon
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - M Lee
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - JW Lee
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - MK Kim
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - J Kim
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - T You
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - E Lee
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - J Park
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - D-Y Noh
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - S Kim
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
| | - W Han
- Seoul National University Hospital, Seoul, Korea; Macrogen Inc, Korea; Bioconvergence Research Center, Korea; Geference Inc, Korea
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Kim MK, Moon HG, Kim J, Lee JW, Yoo TK, Kim J, Lee ES, Noh DY, Han W. Abstract PD4-2: Whole exome and transcriptome sequencing of 120 primary breast cancer to discover novel therapeutic target. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-pd4-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Many somatic mutations, structural alterations, and gene expression changes are causally implicated in oncogenesis and tumor progression, and as a result, affect clinical outcome. Although majority of breast cancer patients have benefits from therapeutics targeting tumor biology, such as estrogen receptor and HER-2, still many patients suffer from disease recurrence and metastasis. More kind of specific target therapies are needed, especially for hormone-resistant tumor and triple-negative breast cancer.
Materials and Method: To find novel therapeutic target in breast cancer, here we examine the both whole exome and whole transcriptome of fresh-frozen primary breast cancer tissues from 120 patients whose clinical, pathological, and survival data are available. Patients with Stage IV disease or who received neoadjuvant chemotherapy were excluded. 36 patients had distant metastasis within 5 years from surgery, and 84 patients were NED at least 5 years. RNA and DNA were extracted and qualities were assessed in all samples. Exome and transcriptome sequencing were done using NGS technology (Illumina HiSeq 2000). As a control, exome sequencing was done for 93 normal DNA from matched patients. Single nucleotide variations (SNV) identified in cancer samples on exonic region, nonsynonymous SNV or stop gain/loss, whose quality ≥20, and not found in 93 normal samples were included. SNVs registered in dbSNP135_common or 1000 genome allele frequency >0.001 were excluded.Results and Discussion: We identified 11,684 putative somatic mutations in 7,373 genes. Of them, 6,547 were deleterious or damaging mutation by Provean or SIFT analysis. Mutations were found in potential drug target genes, such as PIK3CA(25), PTEN(3), AKT1(3), ALK(3), ROS1(2), FGFR4(3), FGFR3(2), ERBB2(2), and IDH1(1) etc. In a pathway analysis, mutations in insulin signaling pathway were most dominant. We hypothesized that driver gene and therapeutic target has to have recurrent mutation and gene expression at least more than average expression. We calculated expression “Volume” according to the median normalized FPKM value of individual gene's RNA-seq data. With a cut-off of 3 or more mutations in each gene, 1,116 genes were selected. After the filtering of Volume<0.3, 696 genes were selected. Finally, 55 genes were selected which are druggable or potentially druggable using drug database (DrugBank, TOCRIS, Ingenuity) and Pubmed. DriverNet analysis result was also considered for the selection. All 342 tumor suppressor genes were filtered out. Interestingly, 18 of the 55 were genes involved in metabolism (fatty acid, glucose, amino acids). 12 were kinases and 4 were involved in insulin pathway. Excluding the previously confirmed therapeutic target, PIK3CA, AKT1, and NOTCHs, and considering the patients’ clinical data, our primary candidates for hormone-resistant breast cancer were NQO2, CELSR1, GLUD2, MYH9, PSMD2, NADK, IRS2, MAP3K5, and for triple-negative breast cancer were HSPG2, PHGDH, MYLK, etc. Validation with Sanger sequencing and functional study is on-going.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr PD4-2.
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Affiliation(s)
- MK Kim
- Seoul National University Hospital, Seoul, Korea
| | - H-G Moon
- Seoul National University Hospital, Seoul, Korea
| | - J Kim
- Seoul National University Hospital, Seoul, Korea
| | - JW Lee
- Seoul National University Hospital, Seoul, Korea
| | - T-K Yoo
- Seoul National University Hospital, Seoul, Korea
| | - J Kim
- Seoul National University Hospital, Seoul, Korea
| | - ES Lee
- Seoul National University Hospital, Seoul, Korea
| | - D-Y Noh
- Seoul National University Hospital, Seoul, Korea
| | - W Han
- Seoul National University Hospital, Seoul, Korea
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191
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Lee E, Han W, Moon HG, Kim J, Lee JW, Kim MK, Yoo TK, Kim J, Noh DY. Abstract P5-15-04: Clinical benefits of using nomogram for predicting positive resection margins in breast conserving surgery. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p5-15-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Achieving a clear resection margin in breast conserving surgery (BCS) is an important factor in tumor recurrence in breast cancer. To obtain clear resection margins and reduce re-excision rates, some surgeons obtain intraoperative assessments of the margins of excised specimens, using intraoperative frozen biopsy. But intraoperative frozen biopsy has several problems such as low sensitivity or longer operation time. We have previously reported a nomogram for prediction of positive resection margin by integrating preoperatively available clinical and pathologic information. The factors were the presence of microcalcification, mammographic density, tumor size discrepancy between magnetic resonance imaging and ultrasonography, and the presence of ductal carcinoma in situ or lobular carcinoma in needle biopsy specimens.
We conducted a prospective trial to examine the accuracy and clinical benefits of the nomogram in 442 breast cancer patients (nomogram group) who underwent BCS between Dec 2011 and March 2013, and compared the clinical outcome with that of the 253 patients (control group) who underwent BCS between Jan 2011 and Oct 2011. For nomogram group, the intraoperative frozen section biopsy was omitted in patients with low nomogram scores.
Applying our nomogram did not increase the rate of reoperation due to resection margin positivity when compared to the control group (6.56% vs. 4.25%, respectively, p = 0.22). In the nomogram group, the reoperation rate in patients with low nomogram score who did not undergo intraoperative frozen biopsy was 3.2%, and this is lower than the reoperation rate in the control group. Additionally, we experienced a significant reduction in operation time by 15 minutes when compared to the control group (p<0.001).
In conclusion, our results show that out nomogram for predicting positive resection margin for patients who receive BCS can significantly reduce the operation time without increasing reoperation rate.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P5-15-04.
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Affiliation(s)
- E Lee
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - W Han
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H-G Moon
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - JW Lee
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - MK Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - T-K Yoo
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D-Y Noh
- Seoul National University College of Medicine, Seoul, Republic of Korea
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192
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Abstract
Self-interference incoherent digital holography (SIDH) retrieves the complex hologram from the object illuminated by the incoherent light. Supported by the adaptive optic feature, SIDH is readily applicable to the ocular imaging to investigate the human retinal cells. Considering the practical issues, issues related to resolution, phase-shifting, and contrast should be addressed to implement the viable SIDH system which is capable of recording the holographic information of human retinal cells under the incoherent illumination. Super resolution image reconstruction technique can be directly applied to SIDH to enhance the resolution of the system without any change of configuration. We present the improved way to incorporate the phase-shifting itself into the lateral shift required by the super resolution technique. To deal with the phase-shifting issue, we present an arbitrary phase shift retrieval algorithm which can reduce the number of phase-shift and accept the blind phase-shift. The single-shot imaging is also possible by adopting the off-axis configuration of SIDH. We will provide the detailed procedures to retrieve the complex hologram using the proposed arbitrary phase shifting algorithm and the off-axis configuration.
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Affiliation(s)
- J Hong
- Department of Physics, University of South Florida, Tampa, FL 33620, USA,
| | - M K Kim
- Department of Physics, University of South Florida, Tampa, FL 33620, USA
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193
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Abstract
1,5-(Alkadiynyl)anthracenes self-assemble single component and multicomponent monolayers at the solution-HOPG interface. An alkadiynyl chain's kinked shape constrains the molecular structures with which it can close-pack. This affords rudimentary molecular recognition that has been used to direct self-assembly of 1-D patterned, multicomponent monolayers. The unit cell building blocks of single- and multicomponent alkadiynylanthracene monolayers repeat with high fidelity for 100s of nanometers along the side chain direction. Unit cell repeat fidelity along the orthogonal, anthracene column direction of the monolayer depends on diyne location within the side chain; even-position diyne side chains produce high fidelity of unit cell repeats and wider domain widths along the anthracene columns, whereas odd-position diyne side chains produce more frequent domain interfaces that disrupt the anthracene columns. Alkadiynylanthracene monolayers may be viewed as stacks of 1-D molecular tapes. 1-D tape molecular composition, sequence, and intratape side chain alignment are dictated by shape complementarity of the kinked alkadiynyl side chains. Stacking alignments of adjacent 1-D tapes are controlled by shape matching of tape peripheries and determine repeat fidelity along the anthracene columns. Tapes stacked with a constant intertape alignment comprise crystalline domains that repeat along the anthracene columns. The 1-D tapes formed by anthracenes with odd-position diynes have triangle wave peripheries that close-pack in multiple stacking alignments. This reduces unit cell repeat fidelity and decreases the widths of crystalline domains along the anthracene columns. Even-position diyne side chains form 1-D tapes with trapezoid wave peripheries that close-pack in only one stacking alignment. This generates higher stacking fidelity, larger domain widths, and fewer domain interfaces along the anthracene columns of even-position diyne monolayers. Even- and odd-position diyne monolayers exhibit comparable densities of interfaces between enantiotopic domains and between domains aligned along different graphite symmetry axes. These interfaces likely arise through collisions of independently nucleated/growing domains and persist for lack of kinetically competent pathways that interconvert or merge the domains.
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Affiliation(s)
- Yi Xue
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
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194
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Lim SM, Chang H, Yoon MJ, Hong YK, Kim H, Chung WY, Park CS, Nam KH, Kang SW, Kim MK, Kim SB, Lee SH, Kim HG, Na II, Kim YS, Choi MY, Kim JG, Park KU, Yun HJ, Kim JH, Cho BC. A multicenter, phase II trial of everolimus in locally advanced or metastatic thyroid cancer of all histologic subtypes. Ann Oncol 2013; 24:3089-94. [PMID: 24050953 DOI: 10.1093/annonc/mdt379] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- S M Lim
- Department of Internal Medicine, Division of Medical Oncology, Yonsei University College of Medicine, Seoul
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195
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Kim GA, Oh HJ, Park JE, Kim MJ, Park EJ, Jo YK, Jang G, Kim MK, Kim HJ, Lee BC. Species-specific challenges in dog cloning. Reprod Domest Anim 2013; 47 Suppl 6:80-3. [PMID: 23279471 DOI: 10.1111/rda.12035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 07/06/2012] [Indexed: 11/28/2022]
Abstract
Somatic cell nuclear transfer (SCNT) is now an established procedure used in cloning of several species. SCNT in dogs involves multiple steps including the removal of the nuclear material, injection of a donor cell, fusion, activation of the reconstructed oocytes and finally transfer to a synchronized female recipient. There are therefore many factors that contribute to cloning efficiency. By performing a retrospective analysis of 2005-2012 published papers regarding dog cloning, we define the optimum procedure and summarize the specific feature for dog cloning.
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Affiliation(s)
- G A Kim
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Korea
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196
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Kim MK, Uh K, Lee J, Oh S, Lee CW. Photoresponsive Colorimetric Change of a t-BOC-Polyaniline/Spiropyran Film Based on Conducting Pattern. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.7.1957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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197
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Kim H, Lee KH, Sohn SK, Jung CW, Joo YD, Kim SH, Kim BS, Choi JH, Kwak JY, Kim MK, Bae SH, Shin HJ, Won JH, Oh S, Lee WS, Park JH, Yoon SS. Hepatic sinusoidal obstruction syndrome after allogeneic hematopoietic stem cell transplantation in adult patients with idiopathic aplastic anemia. Leuk Res 2013; 37:1241-7. [PMID: 23871157 DOI: 10.1016/j.leukres.2013.06.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 06/04/2013] [Accepted: 06/17/2013] [Indexed: 01/20/2023]
Abstract
We retrospectively investigated the incidence, risk factors, and outcomes of SOS (sinusoidal obstruction syndrome; previously veno-occlusive disease [VOD]) after allogeneic hematopoietic stem cell transplantation (alloHSCT) in aplastic anemia. Two hundred and sixty patients were included in the analysis. SOS developed in 7.3% (n=19/260) of patients. Classical Cy (200 mg/m(2))-ATG was the most common conditioning regimen (84.2%) in the SOS group. The SOS mortality rate was 4/19 (21.1%). Univariate analyses revealed that Cy 200 mg/m(2) conditioning (p=0.035), classical Cy-ATG conditioning (p=0.007), and horse ATG conditioning (p<0.001) were significant risk factors for developing SOS. Multivariate analysis revealed that only horse ATG conditioning was a poor prognostic factor (HR=3.484; 95% CI 1.226-9.904; p=0.002). Rabbit ATG (HR 12.719; 95% CI 2.332-69.373; p=0.003) and weight gain>10% (HR 35.655; 95% CI 2.208-575.805; p=0.012) were risk factors in the overall SOS group. Both rabbit ATG conditioning and weight gain of more than 10% were associated with poor overall survival with a median of 1.2 months (5Y survival rate, any risk factor vs. none: 74.6% vs. 0.0%; p<0.001; Fig. 2) in the SOS group. In conclusion, SOS is a relatively rare (7.3%) but highly fatal (21.1%) acute complication of alloHSCT in AA, and the horse ATG conditioning regimen was a significant risk factor for developing SOS.
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Affiliation(s)
- Hawk Kim
- Divison of Hematology and Hematological Malignancies, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
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198
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Chang SS, Shukla R, Polydorides AD, Vila PM, Lee M, Han H, Kedia P, Lewis J, Gonzalez S, Kim MK, Harpaz N, Godbold J, Richards-Kortum R, Anandasabapathy S. High resolution microendoscopy for classification of colorectal polyps. Endoscopy 2013; 45:553-9. [PMID: 23780842 DOI: 10.1055/s-0032-1326502] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND STUDY AIMS It can be difficult to distinguish adenomas from benign polyps during routine colonoscopy. High resolution microendoscopy (HRME) is a novel method for imaging colorectal mucosa with subcellular detail. HRME criteria for the classification of colorectal neoplasia have not been previously described. Study goals were to develop criteria to characterize HRME images of colorectal mucosa (normal, hyperplastic polyps, adenomas, cancer) and to determine the accuracy and interobserver variability for the discrimination of neoplastic from non-neoplastic polyps when these criteria were applied by novice and expert microendoscopists. METHODS Two expert pathologists created consensus HRME image criteria using images from 68 patients with polyps who had undergone colonoscopy plus HRME. Using these criteria, HRME expert and novice microendoscopists were shown a set of training images and then tested to determine accuracy and interobserver variability. RESULTS Expert microendoscopists identified neoplasia with sensitivity, specificity, and accuracy of 67 % (95 % confidence interval [CI] 58 % - 75 %), 97 % (94 % - 100 %), and 87 %, respectively. Nonexperts achieved sensitivity, specificity, and accuracy of 73 % (66 % - 80 %), 91 % (80 % - 100 %), and 85 %, respectively. Overall, neoplasia were identified with sensitivity 70 % (65 % - 76 %), specificity 94 % (87 % - 100 %), and accuracy 85 %. Kappa values were: experts 0.86; nonexperts 0.72; and overall 0.78. CONCLUSIONS Using the new criteria, observers achieved high specificity and substantial interobserver agreement for distinguishing benign polyps from neoplasia. Increased expertise in HRME imaging improves accuracy. This low-cost microendoscopic platform may be an alternative to confocal microendoscopy in lower-resource or community-based settings.
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Affiliation(s)
- S S Chang
- Department of Internal Medicine, Mount Sinai Hospital, New York 10029, USA
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199
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Kim H, Shin AR, Chung HH, Kim MK, Lee JS, Shim JJ, Kim BH. Recent trends in hepatitis B virus infection in the general Korean population. Korean J Intern Med 2013; 28:413-9. [PMID: 23864799 PMCID: PMC3712149 DOI: 10.3904/kjim.2013.28.4.413] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 08/03/2012] [Accepted: 08/17/2012] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND/AIMS Hepatitis B virus (HBV) is the major cause of chronic liver disease in Korea, but viral prevalence has decreased because of hepatitis B vaccination programs. In this study, we investigated longitudinal changes in HBV in fection in the general Korean population. METHODS HBV surface antigen (hepatitis B surface antigen, HBsAg) seropositivity was assessed from the Korea National Health and Nutrition Examination Survey (I to V). In total, 50,140 subjects were tested for serum HBsAg positivity over a period of 12 years (1998 to 2010). RESULTS The prevalence of HBsAg seropositivity decreased over the study period. The rates of HBsAg carriers were 4.61% in 1998, 4.60% in 2001, 3.69% in 2005, 3.01% in 2008, and 2.98% in 2010 (p < 0.0001). The reduction in HBV infection rates was more prominent in younger age groups. Among teenagers (10 to 19 years), the percentage of HBsAg carriers decreased from 2.2% in 1998 to 0.12% in 2010 (p < 0.0001). Among those aged 10 to 39 years, the percentage of HBV infection decreased from 4.72% in 1998 to 2.29% in 2010 (p < 0.0001). However, no decreasing trend in HBsAg positivity was observed among those aged 50 or older (p > 0.05). Neither gender nor socioeconomic status were associated with the decreased prevalence of HBsAg carriers. CONCLUSIONS HBV infection has decreased in the Korean population since the advent of vaccination programs. However, the decrease is limited to the younger population, and viral persistence remains in the middle-aged and older population.
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Affiliation(s)
- Hyuck Kim
- Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea
| | - A Ri Shin
- Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea
| | - Hoe Hoon Chung
- Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea
| | - Min Kyoung Kim
- Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea
| | - Ji Sung Lee
- Department of Biostatistics, Korea University College of Medicine, Seoul, Korea
| | - Jae-Jun Shim
- Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea
| | - Byung-Ho Kim
- Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea
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200
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Kim MK, Park SW, Lee JW. Randomized comparison of the Pentax AirWay Scope and Macintosh laryngoscope for tracheal intubation in patients with obstructive sleep apnoea. Br J Anaesth 2013; 111:662-6. [PMID: 23752209 DOI: 10.1093/bja/aet201] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Patients with obstructive sleep apnoea (OSA) can often present difficulties in intubation. This study aimed to compare the efficacy of the Pentax AirWay Scope (AWS) with that of the Macintosh laryngoscope for tracheal intubation in patients with OSA. METHODS Forty-six patients undergoing uvulopalatopharyngoplasty were randomly allocated to tracheal intubation with either the Macintosh laryngoscope or the Pentax AWS. In all patients, intubation was performed by one of two anaesthetists experienced with both devices. The primary and secondary endpoints of this study were the intubation difficulty scale (IDS) score and success/failure and duration of the first successful intubation attempt. RESULTS With the Pentax AWS, tracheal intubation was successful on the first attempt in all patients whereas four patients required repeated attempts at intubation with the Macintosh laryngoscope. The IDS score was significantly lower using the Pentax AWS and glottic exposure was better (the Cormack and Lehane grade 1 in all patients vs grade 2 or higher in all patients, P<0.0001). Average duration of successful intubation was shorter (12.9 vs 29.9 s, P=0.0002), and fewer manoeuvres were needed to improve the glottic exposure (0 in all patients vs 1 or more in 16 patients, P<0.0001) with the Pentax AWS, compared with the Macintosh laryngoscope. CONCLUSIONS In this study of patients with OSA, tracheal intubation by experienced anaesthetists was facilitated using the Pentax AWS compared with the Macintosh laryngoscope.
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Affiliation(s)
- M K Kim
- Department of Anesthesiology and Pain Medicine, School of Medicine, Kyung Hee University, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-872, Republic of Korea
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