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Kim YC, Nam H, Choi JY, Shin EC, Choi YH. The third dose of measles-containing vaccine induces robust immune responses against measles in young seronegative healthcare workers who had previous two-dose measles vaccination. J Infect Public Health 2023; 16:1643-1649. [PMID: 37597451 DOI: 10.1016/j.jiph.2023.08.002] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/21/2023] Open
Abstract
BACKGROUND Despite the low measles antibody positivity rate among young healthcare workers (HCWs) who have previously received two doses of a measles-containing vaccine (MCV), whether an additional dose of MCV acts as a booster remains unknown. Thus, we aimed to evaluate the immune responses to a third dose of MCV in young HCWs. METHODS Hospital-wide measles seroprevalence was assessed using enzyme-linked immunosorbent assay (ELISA). The immunogenicity of a third dose of MCV was determined in young seronegative HCWs (born between 1986 and 1997) who had previously received a two-dose measles vaccination. RESULTS A total of 3033 (92.6%) HCWs had anti-measles immunoglobulin G. The lowest seropositivity rate was observed in HCWs aged 20-24 years (87.7%). In this group, HCWs who received a third dose of MCV had higher seropositivity than those who received a second dose (89.5% vs. 75.4%). A third dose of MCV was administered to 18 HCWs who did not have anti-measles IgG despite two doses. Neutralizing antibody titers increased significantly 4 weeks after the third vaccination. Although neutralizing antibody titers decreased 1 year post vaccination, 17 (94.4%) HCWs had medium (121-900 mIU/mL) or high (>900 mIU/mL) levels. Furthermore, the third dose of MCV increased the measles virus-specific T-cell effector function. CONCLUSIONS The third dose of MCV induced a strong immune response against measles in young seronegative HCWs who had previously received a two-dose measles vaccination.
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Affiliation(s)
- Yong Chan Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Heejin Nam
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Jun Yong Choi
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Eui-Cheol Shin
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea; The Center for Viral Immunology, Korea Virus Research Institute, Institute for Basic Science (IBS), Daejeon, Republic of Korea.
| | - Young Hwa Choi
- Department of Infectious Diseases, Ajou University School of Medicine, Suwon, Republic of Korea.
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Goo D, Park I, Nam H, Lee Y, Sawall J, Smith AH, Rehberger TG, Li C, Lillehoj HS. Collagen adhesin protein and necrotic enteritis B-like toxin as biomarkers for early diagnosis of necrotic enteritis in commercial broiler chickens. Poult Sci 2023; 102:102647. [PMID: 37060834 PMCID: PMC10139936 DOI: 10.1016/j.psj.2023.102647] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
Mouse monoclonal antibodies (mAbs) reactive with Clostridium perfringens collagen adhesin protein (CNA) and necrotic enteritis B-like toxin (NetB) were developed. The best capture/detection mAb pairs for CNA and NetB were selected based on their affinity and specificity to develop sandwich enzyme-linked immunosorbent assays (ELISAs) to detect CNA and NetB proteins, respectively, in jejunal digesta samples from commercial broiler farms in the United States. Prior to the analysis of samples from commercial broiler flocks, the specificity and sensitivity of the CNA and NetB ELISAs were validated using sera, jejunal digesta, and fecal samples from chickens coinfected with Eimeria maxima and CNA+/NetB+C. perfringens in an animal model of necrotic enteritis (NE). Subsequently, a total of 251 field samples were collected from 74 commercial poultry farms. Among these, 18 samples were from 6 broiler farms that used certified organics (CO), and 155 samples were from 42 farms with nonantibiotics (NA). In jejunal digesta samples, CNA levels ranged from 0.02 to 0.59 ng/mL and NetB levels ranged from 0.09 to 1.91 ng/mL. CNA and NetB levels showed a positive correlation with each other (Pearson correlation coefficient r = 0.772, P < 0.001). CNA and NetB levels in jejunal digesta were significantly decreased in CO farms compared with those from NA farms (P < 0.001). In conclusion, these new C. perfringens antigen-specific sandwich ELISAs offer a sensitive and specific means to detect C. perfringens CNA and NetB proteins as biomarkers of early NE occurrence in field samples from commercial broiler chickens.
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Affiliation(s)
- D Goo
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA; Department of Poultry Science, University of Georgia, Athens, GA, USA
| | - I Park
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - H Nam
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - Y Lee
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - J Sawall
- Arm & Hammer Animal and Food Production, Waukesha, WI, USA
| | - A H Smith
- Arm & Hammer Animal and Food Production, Waukesha, WI, USA
| | - T G Rehberger
- Arm & Hammer Animal and Food Production, Waukesha, WI, USA
| | - C Li
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - H S Lillehoj
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA.
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Nam H, Koh JY, Jung JH, Jeong H, Jeong HW, Cheon S, Park SH, Kim YS, Shin EC. Distinctive Dynamics and Functions of the CD4+CD25+FOXP3+ Regulatory T Cell Population in Patients with Severe and Mild COVID-19. J Immunol 2023; 210:1687-1699. [PMID: 37042681 DOI: 10.4049/jimmunol.2200290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 03/20/2023] [Indexed: 04/13/2023]
Abstract
Although CD4+CD25+FOXP3+ regulatory T (TREG) cells have been studied in patients with COVID-19, changes in the TREG cell population have not been longitudinally examined during the course of COVID-19. In this study, we longitudinally investigated the quantitative and qualitative changes in the TREG cell population in patients with COVID-19. We found that the frequencies of total TREG cells and CD45RA-FOXP3hi activated TREG cells were significantly increased 15-28 d postsymptom onset in severe patients, but not in mild patients. TREG cells from severe patients exhibited not only increased proliferation but also enhanced apoptosis, suggesting functional derangement of the TREG cell population during severe COVID-19. The suppressive functions of the TREG cell population did not differ between patients with severe versus mild COVID-19. The frequency of TREG cells inversely correlated with SARS-CoV-2-specific cytokine production by CD4+ T cells and their polyfunctionality in patients with mild disease, suggesting that TREG cells are major regulators of virus-specific CD4+ T cell responses during mild COVID-19. However, such correlations were not observed in patients with severe disease. Thus, in this study, we describe distinctive changes in the TREG cell population in patients with severe and mild COVID-19. Our study provides a deep understanding of host immune responses upon SARS-CoV-2 infection in regard to TREG cells.
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Affiliation(s)
- Heejin Nam
- The Center for Viral Immunology, Korea Virus Research Institute, Institute for Basic Science, Daejeon, Republic of Korea
| | - June-Young Koh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jae Hyung Jung
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Hyeongseok Jeong
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Hye Won Jeong
- Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, Republic of Korea
| | - Shinhye Cheon
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Su-Hyung Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
- The Center for Epidemic Preparedness, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Yeon-Sook Kim
- Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Eui-Cheol Shin
- The Center for Viral Immunology, Korea Virus Research Institute, Institute for Basic Science, Daejeon, Republic of Korea
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
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Koh JY, Rha MS, Choi SJ, Lee HS, Han JW, Nam H, Kim DU, Lee JG, Kim MS, Park JY, Park SH, Joo DJ, Shin EC. Erratum to 'Identification of a distinct NK-like hepatic T-cell population activated by NKG2C in a TCR-independent manner' [J Hepatol 77 (2022) 1059-1070]. J Hepatol 2023; 78:450-451. [PMID: 36470806 DOI: 10.1016/j.jhep.2022.10.005] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- June-Young Koh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Min-Seok Rha
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Seong Jin Choi
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Ha Seok Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Ji Won Han
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Heejin Nam
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Dong-Uk Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jae Geun Lee
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Myoung Soo Kim
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jun Yong Park
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
| | - Su-Hyung Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
| | - Dong Jin Joo
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
| | - Eui-Cheol Shin
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
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Jeon SH, Lee YJ, Kim HD, Nam H, Ryoo BY, Park SH, Yoo C, Shin EC. Dynamic changes in peripheral blood monocytes early after anti-PD-1 therapy predict clinical outcomes in hepatocellular carcinoma. Cancer Immunol Immunother 2023; 72:371-384. [PMID: 35902399 PMCID: PMC9333050 DOI: 10.1007/s00262-022-03258-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/11/2022] [Indexed: 01/26/2023]
Abstract
Immune checkpoint inhibitors are effective for advanced hepatocellular carcinoma (HCC), but there remains a need for peripheral blood biomarkers to predict the clinical response. Here, we analyzed the peripheral blood of 45 patients with advanced HCC who underwent nivolumab. During treatment, frequency of classical monocytes (CD14+CD16-) was increased on day 7, and the fold increase in the frequency on day 7 over day 0 (cMonocyteD7/D0) was significantly higher in patients with durable clinical benefit (DCB) than in patients with non-DCB (NDB). When we analyzed transcriptomes of classical monocytes, CD274, gene encoding PD-L1, was upregulated in NDB patients compared to DCB patients at day 7. Notably, gene signature of suppressive tumor-associated macrophages, or IL4l1+PD-L1+IDO1+ macrophages, was enriched after treatment in NDB patients, but not in DCB patients. Accordingly, the fold increase in the frequency of PD-L1+ classical monocytes at day 7 over day 0 (cMonocyte-PDL1D7/D0) was higher in NDB patients than DCB patients. The combined biomarker cMonocyteD7/D0/cMonocyte-PDL1D7/D0 was termed the "monocyte index", which was significantly higher in DCB patients than NDB patients. Moreover, the monocyte index was an independent prognostic factor for survival. Overall, our results suggest that early changes of circulating classical monocytes, represented as a monocyte index, could predict clinical outcomes of advanced HCC patients undergoing anti-PD-1 therapy.
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Affiliation(s)
- Seung Hyuck Jeon
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Yong Joon Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
- Department of Surgery, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Hyung-Don Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Heejin Nam
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Baek-Yeol Ryoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Su-Hyung Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Changhoon Yoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea.
| | - Eui-Cheol Shin
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea.
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Jeon SH, Kang M, Jeon M, Chung Y, Kim AR, Lee YJ, Kim ES, Nam H, Park J, Lee JY, Shin EC, Seo SI, Park SH. CEACAM1 marks highly suppressive intratumoral regulatory T cells for targeted depletion therapy. Clin Cancer Res 2023; 29:1794-1806. [PMID: 36716293 DOI: 10.1158/1078-0432.ccr-22-1843] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 12/11/2022] [Accepted: 01/26/2023] [Indexed: 02/01/2023]
Abstract
PURPOSE Regulatory T cells (Tregs) exert immunosuppressive functions and hamper anti-tumor immune responses in the tumor microenvironment. Understanding the heterogeneity of intratumoral Tregs, and how it changes with tumor progression, will provide clues regarding novel target molecules of Treg-directed therapies. EXPERIMENTAL DESIGN From 42 patients with renal cell carcinoma and 5 patients with ovarian cancer, immune cells from tumor and peripheral blood were isolated. We performed multicolor flow cytometry and RNA-sequencing to characterize the phenotypes and heterogeneity of intratumoral Tregs. In vitro functional assays were performed to evaluate suppressive capacity of Tregs and effect of CEACAM1-mediated depletion. The CT26 tumor model was used to evaluate the association between intratumoral Tregs and tumor growth, and examine the in vivo role of CEACAM1+ intratumoral Tregs on anti-tumor immunity. RESULTS We found that carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) was selectively expressed on intratumoral Tregs, while its expression on peripheral Tregs or other immune cells was low. The CEACAM1+ intratumoral Tregs accumulated with tumor progression, while the CEACAM1- subset did not. Notably, we found that CEACAM1 marked intratumoral Tregs that exhibited highly suppressive and activated phenotypes with substantial clonal expansion. Depletion of CEACAM1-expressing cells from tumor-infiltrating leukocytes led to increased effector functions of tumor-infiltrating T cells. Moreover, CEACAM1+ cell depletion further enhanced anti-PD-1--mediated reinvigoration of exhausted CD8+ T cells. CONCLUSIONS CEACAM1 marks highly suppressive subset of intratumoral Tregs, and can be a target for selective depletion of intratumoral Tregs. These results may inform future studies on CEACAM1-mediated depletion in cancer patients.
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Affiliation(s)
- Seung Hyuck Jeon
- Korea Advanced Institute of Science and Technology, Korea (South), Republic of
| | - Minyong Kang
- Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea (South), Republic of
| | - Minwoo Jeon
- Korea Advanced Institute of Science and Technology, Daejeon, Korea (South), Republic of
| | - Youseung Chung
- Korea Advanced Institute of Science and Technology, Korea (South), Republic of
| | - A Reum Kim
- Korea Advanced Institute of Science and Technology, Daejeon, Korea (South), Republic of
| | - Yong Joon Lee
- Korea Advanced Institute of Science and Technology, Daejeon, Korea (South), Republic of
| | - Eui-Soon Kim
- Korea Advanced Institute of Science and Technology, Daejeon, Korea (South), Republic of
| | - Heejin Nam
- Korea Advanced Institute of Science and Technology, Daejeon, Korea (South), Republic of
| | - Junsik Park
- Yonsei University College of Medicine, Seoul, Korea (South), Republic of
| | - Jung-Yun Lee
- Yonsei University College of Medicine, Seoul, Korea (South), Republic of
| | - Eui-Cheol Shin
- Korea Advanced Institute of Science and Technology, Daejeon, Korea (South), Republic of
| | - Seong Il Seo
- Samsung Medical Center, Seoul, Korea (South), Republic of
| | - Su-Hyung Park
- Korea Advanced Institute of Science and Technology, Daejeon, Korea (South), Republic of
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Jeon H, Kim G, Nam H, Suh S. The Function of Bedtime Procrastination in Individuals with Clinical Insomnia. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Koh JY, Rha MS, Choi SJ, Lee HS, Han JW, Nam H, Kim DU, Lee JG, Kim MS, Park JY, Park SH, Joo DJ, Shin EC. Identification of a distinct NK-like hepatic T-cell population activated by NKG2C in a TCR-independent manner. J Hepatol 2022; 77:1059-1070. [PMID: 35644434 DOI: 10.1016/j.jhep.2022.05.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 04/12/2022] [Accepted: 05/09/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND & AIMS The liver provides a unique niche of lymphocytes enriched with a large proportion of innate-like T cells. However, the heterogeneity and functional characteristics of the hepatic T-cell population remain to be fully elucidated. METHODS We obtained liver sinusoidal mononuclear cells from the liver perfusate of healthy donors and recipients with HBV-associated chronic liver disease (CLD) during liver transplantation. We performed a CITE-seq analysis of liver sinusoidal CD45+ cells in combination with T cell receptor (TCR)-seq and flow cytometry to examine the phenotypes and functions of liver sinusoidal CD8+ T cells. RESULTS We identified a distinct CD56hiCD161-CD8+ T-cell population characterized by natural killer (NK)-related gene expression and a uniquely restricted TCR repertoire. The frequency of these cells among the liver sinusoidal CD8+ T-cell population was significantly increased in patients with HBV-associated CLD. Although CD56hiCD161-CD8+ T cells exhibit weak responsiveness to TCR stimulation, CD56hiCD161-CD8+ T cells highly expressed various NK receptors, including CD94, killer immunoglobulin-like receptors, and NKG2C, and exerted NKG2C-mediated NK-like effector functions even in the absence of TCR stimulation. In addition, CD56hiCD161-CD8+ T cells highly respond to innate cytokines, such as IL-12/18 and IL-15, in the absence of TCR stimulation. We validated the results from liver sinusoidal CD8+ T cells using intrahepatic CD8+ T cells obtained from liver tissues. CONCLUSIONS In summary, the current study found a distinct CD56hiCD161-CD8+ T-cell population characterized by NK-like activation via TCR-independent NKG2C ligation. Further studies are required to elucidate the roles of liver sinusoidal CD56hiCD161-CD8+ T cells in immune responses to microbial pathogens or liver immunopathology. LAY SUMMARY The role of different immune cell populations in the liver is becoming an area of increasing interest. Herein, we identified a distinct T-cell population that had features similar to those of natural killer (NK) cells - a type of innate immune cell. This distinct population was expanded in the livers of patients with chronic liver disease and could thus have pathogenic relevance.
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Affiliation(s)
- June-Young Koh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Min-Seok Rha
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Seong Jin Choi
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Ha Seok Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Ji Won Han
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Heejin Nam
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Dong-Uk Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jae Geun Lee
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Myoung Soo Kim
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jun Yong Park
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
| | - Su-Hyung Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
| | - Dong Jin Joo
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
| | - Eui-Cheol Shin
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea; The Center for Viral Immunology, Korea Virus Research Institute, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea.
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Lee YJ, Kim JY, Jeon SH, Nam H, Jung JH, Jeon M, Kim ES, Bae SJ, Ahn J, Yoo TK, Sun WY, Ahn SG, Jeong J, Park SH, Park WC, Kim SI, Shin EC. CD39 + tissue-resident memory CD8 + T cells with a clonal overlap across compartments mediate antitumor immunity in breast cancer. Sci Immunol 2022; 7:eabn8390. [PMID: 36026440 DOI: 10.1126/sciimmunol.abn8390] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Despite being a standard treatment option in breast cancer, immune checkpoint inhibitors (ICIs) are only efficacious for a subset of patients. To gain a better understanding of the antitumor immune response in breast cancer, we examined the heterogeneity of CD8+ T cells in tumors, metastatic lymph nodes (mLNs), and peripheral blood from patients with early breast cancer (n = 131). Among tissue-resident memory CD8+ T (TRM) cells, including virus- and tumor-specific CD8+ T cells, CD39 expression was observed in a tumor-specific and exhausted subpopulation in both tumors and mLNs. CD39+ TRM cells from tumors and mLNs exhibited a phenotypic similarity and clonally overlapped with each other. Moreover, tumor or mLN CD39+ TRM cells clonally overlapped with CD39- TRM and non-TRM cells in the same compartment, implying a tissue-specific differentiation process. These inter-subpopulationally overlapping CD39+ TRM clonotypes were frequently detected among effector memory CD8+ T cells in peripheral blood, suggesting a systemic clonal overlap. CD39+ TRM cell enrichment was heterogeneous among molecular subtypes of breast cancer, which is associated with the different role of antitumor immune responses in each subtype. In vitro blockade of PD-1 and/or CTLA-4 effectively restored proliferation of CD39+ TRM cells and enhanced cytokine production by CD8+ T cells from tumors or mLNs, particularly in the presence of CD39+ TRM enrichment. This suggests that CD39+ TRM cells have a capacity for functional restoration upon ICI treatment. Thus, our study indicates that CD39+ TRM cells with a clonal overlap across compartments are key players in antitumor immunity in breast cancer.
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Affiliation(s)
- Yong Joon Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.,Department of Surgery, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jee Ye Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Seung Hyuck Jeon
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Heejin Nam
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jae Hyung Jung
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Minwoo Jeon
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Eui-Soon Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Soong June Bae
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Republic of Korea
| | - Juneyoung Ahn
- Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul 11765, Republic of Korea
| | - Tae-Kyung Yoo
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Woo Young Sun
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul 34943, Republic of Korea
| | - Sung Gwe Ahn
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Republic of Korea
| | - Joon Jeong
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Republic of Korea
| | - Su-Hyung Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Woo Chan Park
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Seung Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Eui-Cheol Shin
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
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Kim JY, Lee YJ, Jeon SH, Nam H, Jung JH, Kim SI, Shin EC. Abstract 1666: Tumor-specificity of tumor-infiltrating CD8+ t cells determines the potential of immune checkpoint inhibitors in breast cancer. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-1666] [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
Tissue-resident memory CD8+ T cells (TRMs), marked by expression of CD103, are considered to play a key role as anti-tumor immune response in breast cancer. However, prognostic value of TRMs and heterogeneity in CD103+ TRMs of breast cancer in terms of tumor-specificity needs further understanding to establish immuno-therapeutic implications. Here, we isolated tumor-infiltrating CD103+TRMs in breast cancer samples and matched peripheral blood mononuclear cells (PBMCs) which were prospectively collected from 127 patients who underwent surgical resection between July 2016 and May 2020 at Severance Hospital, Seoul, Republic of Korea. Multi-color flow cytometry analyses were performed.CD103+TRMs consist of both tumor-antigen specific CD8+ T cells and bystander CD8+ T cells, such as viral antigen-specific CD8+ T cells. Dissection of CD103+TRMs with CD39 expression reveals a clonally-distinct subpopulation exhibiting tumor-antigen specificity and reactivity with transcriptionally and phenotypically exhaustive features. CD39+CD103+ TRMs were enriched in HER2 enriched and triple-negative breast cancer(TNBC) subtypes, but not in Hormone receptor(HR) positive/HER2 not enriched subtypes, implying that the role of tumor-infiltrating CD8+ T cells in eliciting anti-tumor immune response differ among molecular subtypes. In line with early-exhaustive features of CD39+CD103+TRMs, inhibition of either PD-1 alone or both PD-1 and CTLA-4 reinvigorate the proliferation and the cytokine production of CD8+ TILs in HER2 and TNBC subtypes. Our findings indicate that different immuno-therapeutic strategies should be considered to different subtypes of breast cancer.
Citation Format: Jee Ye Kim, Yong Joon Lee, Seung hyuck Jeon, Heejin Nam, Jae Hyung Jung, Seung Il Kim, Eui-Cheol Shin. Tumor-specificity of tumor-infiltrating CD8+ t cells determines the potential of immune checkpoint inhibitors in breast cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 1666.
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Affiliation(s)
- Jee Ye Kim
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong Joon Lee
- 2Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Seung hyuck Jeon
- 2Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Heejin Nam
- 2Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jae Hyung Jung
- 2Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Seung Il Kim
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eui-Cheol Shin
- 2Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
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Nam H, Kim J, Woo S, Park S, Lee H, Jang H, Park† K, Suh† S. 0971 Mother’s Parenting Style As A Moderator In The Relationship Between Temperament And Sleep Problems In Children With Obesity. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.967] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
Based on past studies, a child’s temperament and parenting style greatly affect a child’s sleep. However, there are limited studies that have investigated how parenting styles and a child’s temperament interact and affect the child’s sleep in obese children. Thus, this study investigated parenting styles as a moderator in the relationship between temperament and sleep in obese children.
Methods
Seventy-seven obese children (male=66.2%, average BMI = 27.35±2.78) participated in the study. The mean age of the participants was 10.82(± 1.00) years. The primary caregiver (mother) of the participants completed the Junior Temperament and Character Inventory (J-TCI), and Parents as Social Context Questionnaire (K-PSCQ), and Children’s Sleep Habits Questionnaire (CSHQ). Among the different subscales, only Novelty Seeking (NS) and Reward Dependence (RD) were used for analysis among Junior Temperament and Character Inventory (J-TCI) components.
Results
In this sample, 66 children (85.7%) reported significant levels of sleep problems based on the CSHQ. Novelty seeking (NS) and reward dependence (RD) significantly predicted sleep problems (B=-.771, p<.05, B=-.683, p<.01). Additionally, mother’s negative parenting style moderated the relationship between NS and the child’s sleep problem [B=.03, 95% CI=.007, .049] and the relationship between RD and the child’s sleep problem [B=.031, 95% CI=.013, .049]. The more negative mother’s parenting style, the higher the child’s NS or RD scores had a negative effect on sleep.
Conclusion
The results of this study show that obese children experience high levels of sleep disturbance. Additionally, the mother’s negative parenting style moderated the relationship between temperament and sleep problems in obese children. The results suggest that sleep interventions for obese children should include the mother, especially in children with high novelty seeking and reward dependence.
Support
This work was supported by Korea Centers for Disease Control and Prevention & Korea National Research Institute of Health (2019020660E-00)
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Affiliation(s)
- H Nam
- SUNGSHIN WOMEN’S UNIVERSITY, Seoul, KOREA, REPUBLIC OF
| | - J Kim
- SUNGSHIN WOMEN’S UNIVERSITY, Seoul, KOREA, REPUBLIC OF
| | - S Woo
- Department of Medical Science, Hallym University School of Medicine, Chuncheon, KOREA, REPUBLIC OF
| | - S Park
- Center for Biomedical Sciences, Korea National Institute of Health, Cheongju, Chungbuk, KOREA, REPUBLIC OF
| | - H Lee
- Center for Biomedical Sciences, Korea National Institute of Health, Cheongju, Chungbuk, KOREA, REPUBLIC OF
| | - H Jang
- Center for Biomedical Sciences, Korea National Institute of Health, Cheongju, Chungbuk, KOREA, REPUBLIC OF
| | - K Park†
- Department of Family Medicine, Hallym University Sacred Heart Hospital, Hallym University School of Medicine, Anayng, KOREA, REPUBLIC OF
| | - S Suh†
- SUNGSHIN WOMEN’S UNIVERSITY, Seoul, KOREA, REPUBLIC OF
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Nam H, Hwang BJ, Choi DY, Shin S, Choi M. Tobacco etch virus (TEV) protease with multiple mutations to improve solubility and reduce self-cleavage exhibits enhanced enzymatic activity. FEBS Open Bio 2020; 10:619-626. [PMID: 32129006 PMCID: PMC7137792 DOI: 10.1002/2211-5463.12828] [Citation(s) in RCA: 6] [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: 01/30/2020] [Revised: 02/13/2020] [Accepted: 02/28/2020] [Indexed: 01/27/2023] Open
Abstract
Tobacco etch virus (TEV) protease is a 27‐kDa catalytic domain of the polyprotein nuclear inclusion a (NIa) in TEV, which recognizes the specific amino acid sequence ENLYFQG/S and cleaves between Q and G/S. Despite its substrate specificity, its use is limited by its autoinactivation through self‐cleavage and poor solubility during purification. It was previously reported that T17S/N68D/I77V mutations improve the solubility and yield of TEV protease and S219 mutations provide protection against self‐cleavage. In this study, we isolated TEV proteases with S219N and S219V mutations in the background of T17S, N68D, and I77V without the inclusion body, and measured their enzyme kinetics. The kcat of two isolated S219N and S219V mutants in the background of T17S, N68D, and I77V mutations was highly increased compared to that of the control, and S219N was twofold faster than S219V without Km change. This result indicates that combination of these mutations can further enhance TEV activity.
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Affiliation(s)
- Heejin Nam
- Interdisciplinary Program of Bioenergy and Biomaterials Graduate School, College of Engineering, Chonnam National University, Gwangju, South Korea
| | - Beom J Hwang
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | | | - Sooim Shin
- Interdisciplinary Program of Bioenergy and Biomaterials Graduate School, College of Engineering, Chonnam National University, Gwangju, South Korea.,Department of Bioengineering and Biotechnology, College of Engineering, Chonnam National University, Gwangju, South Korea
| | - Moonsung Choi
- Department of Optometry, College of Energy and Biotechnology, Seoul National University of Science and Technology, South Korea.,Convergence Institute of Biomaterials and Bioengineering, Seoul National University of Science and Technology, South Korea
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Lee E, Lee J, Hur M, Park HY, Yum H, Nam H, Oh MY, Choi H, Kim J, Cho B, Lim Y, Won J. MG1124, a novel CEACAM1-targeted monoclonal antibody, has therapeutic potential as a combination partner of PD-1 inhibitors in NSCLC patients. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz253.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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14
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Shin C, Lee J, Kim YK, Nam H, Yoon EJ, Shin SA, Kim H, Jeon B. Cognitive decline in association with hyposmia in idiopathic rapid eye movement sleep behavior disorder: a prospective 2‐year follow‐up study. Eur J Neurol 2019; 26:1417-1420. [DOI: 10.1111/ene.14025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 06/18/2019] [Indexed: 11/29/2022]
Affiliation(s)
- C. Shin
- Department of Neurology Kyung Hee University Hospital SeoulKorea
| | - J.‐Y. Lee
- Department of Neurology Seoul National University Boramae Hospital SeoulKorea
| | - Y. K. Kim
- Department of Nuclear Medicine Seoul National University Boramae Hospital SeoulKorea
| | - H. Nam
- Department of Neurology Seoul National University Boramae Hospital SeoulKorea
| | - E. J. Yoon
- Department of Nuclear Medicine Seoul National University Boramae Hospital SeoulKorea
| | - S. A. Shin
- Department of Nuclear Medicine Seoul National University Boramae Hospital SeoulKorea
| | - H.‐J. Kim
- Department of Neurology Seoul National University Hospital Seoul Korea
| | - B. Jeon
- Department of Neurology Seoul National University Hospital Seoul Korea
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Nam H, Jeon S, An H, Yoo J, Lee HJ, Lee SK, Lee S. Critical roles of ARHGAP36 as a signal transduction mediator of Shh pathway in lateral motor columnar specification. eLife 2019; 8:46683. [PMID: 31305241 PMCID: PMC6658197 DOI: 10.7554/elife.46683] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 03/08/2019] [Accepted: 07/14/2019] [Indexed: 01/20/2023] Open
Abstract
During spinal cord development, Sonic hedgehog (Shh), secreted from the floor plate, plays an important role in the production of motor neurons by patterning the ventral neural tube, which establishes MN progenitor identity. It remains unknown, however, if Shh signaling plays a role in generating columnar diversity of MNs that connect distinct target muscles. Here, we report that Shh, expressed in MNs, is essential for the formation of lateral motor column (LMC) neurons in vertebrate spinal cord. This novel activity of Shh is mediated by its downstream effector ARHGAP36, whose expression is directly induced by the MN-specific transcription factor complex Isl1-Lhx3. Furthermore, we found that AKT stimulates the Shh activity to induce LMC MNs through the stabilization of ARHGAP36 proteins. Taken together, our data reveal that Shh, secreted from MNs, plays a crucial role in generating MN diversity via a regulatory axis of Shh-AKT-ARHGAP36 in the developing mouse spinal cord.
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Affiliation(s)
- Heejin Nam
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Shin Jeon
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea.,Neuroscience Section, Papé Family Pediatric Research Institute, Department of Pediatrics, Oregon Health and Science Uiversity, Portland, United States
| | - Hyejin An
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Jaeyoung Yoo
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Hyo-Jong Lee
- College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, Gyungnam, Republic of Korea
| | - Soo-Kyung Lee
- Neuroscience Section, Papé Family Pediatric Research Institute, Department of Pediatrics, Oregon Health and Science Uiversity, Portland, United States.,Vollum Institute, Oregon Health and Science University, Portland, United States
| | - Seunghee Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
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Choi C, Kang D, Kim H, Park S, Kim S, Nam H. Clinical outcomes of rectal neuroendocrine tumors less than 20 mm: a single institutional analysis of 371 patients. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz156.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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17
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Choi C, Kim S, Kang D, Park S, Nam H. Can an undifferentiated type early gastric cancer be a candidate for endoscopic resection? Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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18
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Park HY, Nam H, Kwon H, Yu C, Song S, Oh I, Yang H, Jo EC, Won J, Eun SY. A dual-targeting fusion protein, human PVR-4-1BBL for immunotherapy in AML. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy487.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kang D, Choi C, Kim H, Park S, Kim S, Ryu D, Ko J, Lee J, Lee J, Lee K, Kwon B, Kim H, Nam H. Associated factors with overlooked multiple synchronous gastric epithelial neoplasia. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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20
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Kim S, Choi C, Kang D, Kim H, Park S, Ryu D, Ko J, Kim H, Kwon B, Lee K, Lee J, Lee J, Nam H. Clinical outcomes of endoscopic submucosal dissection for lesions on the proximal location of the stomach. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Kang D, Kim H, Choi C, Park S, Kim S, Nam H, Ryu D, Ko J, Kim H, Kwon B, Lee K, Lee J, Lee J. Long-term clinical outcomes in large colorectal polyps with indefinite or positive resection margin after endoscopic resection. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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22
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Koo D, Lee J, Nam H. Sleep problems in patients with synucleinopathy and REM sleep behavior disorder. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Nam H, Kim C, Kim D, Lim J, Jeon S, Kim J, Lee Y, Cho J, Ryu J. P2.01-016 Prognostic Impact of a New Score Using Neutrophil-To-Lymphocyte Ratios in the Serum and Malignant Pleural Effusion in Lung Cancer Patients. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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24
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Lee S, Nam H, Lee Y. Cariporide Enhances DNA Damage and Apoptosis of Malignant Mesothelioma Cells Preadapted to Acidic Environment. Clin Ther 2017. [DOI: 10.1016/j.clinthera.2017.05.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Jeong MK, Hwang C, Nam H, Cho YS, Kang BY, Cho EC. Effect of the gel elasticity of model skin matrices on the distance/depth-dependent transmission of vibration energy supplied from a cosmetic vibrator. Int J Cosmet Sci 2016; 39:42-48. [PMID: 27264842 DOI: 10.1111/ics.12346] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 06/02/2016] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The purpose of this study was to determine how the energies supplied from a cosmetic vibrator are deeply or far transferred into organs and tissues, and how these depths or distances are influenced by tissue elasticity. METHODS External vibration energy was applied to model skin surfaces through a facial cleansing vibrator, and we measured a distance- and depth-dependent energy that was transferred to model skin matrices. As model skin matrices, we synthesized hard and soft poly(dimethylsiloxane) (PDMS) gels, as well as hydrogels with a modulus of 2.63 MPa, 0.33 MPa and 21 kPa, respectively, mostly representing those of skin and other organs. The transfer of vibration energy was measured either by increasing the separation distances or by increasing the depth from the vibrator. RESULTS The energies were transmitted deeper into the hard PDMS than into the soft PDMS and hydrogel matrices. This finding implies that the vibration forces influence a larger area of the gel matrices when the gels are more elastic (or rigid). There were no appreciable differences between the soft PDMS and hydrogel matrices. However, the absorbed energies were more concentrated in the area closest to the vibrator with decreasing elasticity of the matrix. Softer materials absorbed most of the supplied energy around the point of the vibrator. In contrast, harder materials scattered the external energy over a broad area. CONCLUSIONS The current results are the first report in estimating how the external energy is deeply or distantly transferred into a model skins depending on the elastic moduli of the models skins. In doing so, the results would be potentially useful in predicting the health of cells, tissues and organs exposed to various stimuli.
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Affiliation(s)
- M K Jeong
- Department of Chemical Engineering, Hanyang University, Seoul, 04763, South Korea
| | - C Hwang
- Amorepacific Corporation R&D Center, Yonggu-daero, Yongin, 446-729, South Korea
| | - H Nam
- Amorepacific Corporation R&D Center, Yonggu-daero, Yongin, 446-729, South Korea
| | - Y S Cho
- Amorepacific Corporation R&D Center, Yonggu-daero, Yongin, 446-729, South Korea
| | - B Y Kang
- Amorepacific Corporation R&D Center, Yonggu-daero, Yongin, 446-729, South Korea
| | - E C Cho
- Department of Chemical Engineering, Hanyang University, Seoul, 04763, South Korea
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Nam H, Galen K, Campara M, Perni N, Garcia-Roca R, Yeldandi V. Significance of preservation fluid cultures in solid organ transplantation. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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27
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Nam H, Kerman IA. Distribution of catecholaminergic presympathetic-premotor neurons in the rat lower brainstem. Neuroscience 2016; 324:430-45. [PMID: 26946268 DOI: 10.1016/j.neuroscience.2016.02.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 11/21/2015] [Revised: 02/11/2016] [Accepted: 02/26/2016] [Indexed: 11/15/2022]
Abstract
We previously characterized the organization of presympathetic-premotor neurons (PSPMNs), which send descending poly-synaptic projections with collaterals to skeletal muscle and the adrenal gland. Such neurons may play a role in shaping integrated adaptive responses, and many of them were found within well-characterized regions of noradrenergic cell populations suggesting that some of the PSPMNs are catecholaminergic. To address this issue, we used retrograde trans-synaptic tract-tracing with attenuated pseudorabies virus (PRV) recombinants combined with multi-label immunofluorescence to identify PSPMNs expressing tyrosine hydroxylase (TH). Our findings indicate that TH-immunoreactive (ir) PSPMNs are present throughout the brainstem within multiple cell populations, including the A1, C1, C2, C3, A5 and A7 cell groups along with the locus coeruleus (LC) and the nucleus subcoeruleus (SubC). The largest numbers of TH-ir PSPMNs were located within the LC and SubC. Within SubC and the A7 cell group, about 70% of TH-ir neurons were PSPMNs, which was a significantly greater fraction of neurons than in the other brain regions we examined. These findings indicate that TH-ir neurons near the pontomesencephalic junction that are distributed across the LC, SubC, and the A7 may play a prominent role in somatomotor-sympathetic integration, and that the major functional role of the A7 and SubC noradrenergic cell groups maybe in the coordination of concomitant activation of somatomotor and sympathetic outflows. These neurons may participate in mediating homeostatic adaptations that require simultaneous activation of sympathetic and somatomotor nerves in the periphery.
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Affiliation(s)
- H Nam
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, United States; Cell Molecular and Developmental Biology Theme, Graduate Biomedical Sciences Program, University of Alabama at Birmingham, Birmingham, AL, United States
| | - I A Kerman
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, United States.
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Nam H, Lee S. Identification of STAM1 as a novel effector of ventral projection of spinal motor neurons. Development 2016; 143:2334-43. [DOI: 10.1242/dev.135848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 05/04/2016] [Indexed: 12/27/2022]
Abstract
During spinal cord development, motor neuron (MN) axons exit the spinal cord ventrally, although the molecular basis for this process remains poorly understood. STAM1 and Hrs form a complex involved with endosomal targeting of cargo proteins, including the chemokine receptor CXCR4. Interestingly, the absence of CXCR4 signaling in spinal MNs is known to enforce improper extension of the axons into the dorsal side of the spinal cord. Here we report that the MN-specific Isl1-Lhx3 complex directly transactivates the Stam1 gene and STAM1 functions in determining the ventral spinal MN axonal projections. STAM1 is co-expressed with Hrs in embryonic spinal MNs, and knock-down of STAM1 in the developing chick spinal cord results in down-regulation of the expression of CXCR4, accompanied by dorsally projecting motor axons. Interestingly, overexpression of STAM1 or CXCR4 also results in dorsal projection of motor axons, suggesting that proper CXCR4 protein level is critical for the ventral motor axon trajectory. Our results reveal a critical regulatory axis for the ventral axonal trajectory of developing spinal MNs, consisting of the Isl1-Lhx3 complex, STAM1 and CXCR4.
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Affiliation(s)
- Heejin Nam
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, Korea
| | - Seunghee Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 151-742, Korea
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Koo D, Nam H. Association between obstructive sleep apnea syndrome and cerebral microbleeds in patients with ischemic stroke. Sleep Med 2015. [DOI: 10.1016/j.sleep.2015.02.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Min S, Nam H, Kwon D, Hwang S, Kim M. Correlation of maxillo-mandibular skeletal changes and change of lip canting in two jaw orthognathic surgery for correction of facial asymmetry. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hue N, Nam H, Tung N. A Preliminary Investigation of Pentachlorobenzene Amount Created from Municipal Waste Incinerators and Industrial Furnaces at Some Provinces in Northern Vietnam. ACTA ACUST UNITED AC 2015. [DOI: 10.14233/ajchem.2015.18726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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32
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Kim HS, Park YH, Nam H, Lee YM, Song K, Choi C, Ahn I, Park SR, Lee YH, Hwang DJ. Overexpression of the Brassica rapa transcription factor WRKY12 results in reduced soft rot symptoms caused by Pectobacterium carotovorum in Arabidopsis and Chinese cabbage. Plant Biol (Stuttg) 2014; 16:973-981. [PMID: 24552622 DOI: 10.1111/plb.12149] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 12/03/2013] [Indexed: 06/03/2023]
Abstract
Chinese cabbage (Brassica rapa L. ssp. pekinensis), an important vegetable crop, can succumb to diseases such as bacterial soft rot, resulting in significant loss of crop productivity and quality. Pectobacterium carotovorum ssp. carotovorum (Pcc) causes soft rot disease in various plants, including Chinese cabbage. To overcome crop loss caused by bacterial soft rot, a gene from Chinese cabbage was isolated and characterised in this study. We isolated the BrWRKY12 gene from Chinese cabbage, which is a group II member of the WRKY transcription factor superfamily. The 645-bp coding sequence of BrWRKY12 translates to a protein with a molecular mass of approximately 24.4 kDa, and BrWRKY12 was exclusively localised in the nucleus. Transcripts of BrWRKY12 were induced by Pcc infection in Brassica. Heterologous expression of BrWRKY12 resulted in reduced susceptibility to Pcc but not to Pseudomonas syringae pv. tomato in Arabidopsis. Defence-associated genes, such as AtPDF1.2 and AtPGIP2, were constitutively expressed in transgenic lines overexpressing BrWRKY12. The expression of AtWKRY12, which is the closest orthologue of BrWRKY12, was down-regulated by Pcc in Arabidopsis. However, the Atwrky12-2 mutants did not show any difference in response to Pcc, pointing to a difference in function of WRKY12 in Brassica and Arabidopsis. Furthermore, BrWRKY12 in Chinese cabbage also exhibited enhanced resistance to bacterial soft rot and increased the expression of defence-associated genes. In summary, BrWRKY12 confers enhanced resistance to Pcc through transcriptional activation of defence-related genes.
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Affiliation(s)
- H S Kim
- National Academy of Agricultural Science, Rural Development Administration, Suwon, South Korea
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Guo M, Nam H, Li R, Xing L, Gao H. TH-E-17A-02: High-Pitch and Sparse-View Helical 4D CT Via Iterative Image Reconstruction Method Based On Tensor Framelet. Med Phys 2014. [DOI: 10.1118/1.4889677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Nam H, Guo M, Lee K, Li R, Xing L, Gao H. SU-E-I-93: Improved Imaging Quality for Multislice Helical CT Via Sparsity Regularized Iterative Image Reconstruction Method Based On Tensor Framelet. Med Phys 2014. [DOI: 10.1118/1.4888043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Cho HH, Cargnin F, Kim Y, Lee B, Kwon RJ, Nam H, Shen R, Barnes AP, Lee JW, Lee S, Lee SK. Isl1 directly controls a cholinergic neuronal identity in the developing forebrain and spinal cord by forming cell type-specific complexes. PLoS Genet 2014; 10:e1004280. [PMID: 24763339 PMCID: PMC3998908 DOI: 10.1371/journal.pgen.1004280] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 02/18/2014] [Indexed: 12/04/2022] Open
Abstract
The establishment of correct neurotransmitter characteristics is an essential step of neuronal fate specification in CNS development. However, very little is known about how a battery of genes involved in the determination of a specific type of chemical-driven neurotransmission is coordinately regulated during vertebrate development. Here, we investigated the gene regulatory networks that specify the cholinergic neuronal fates in the spinal cord and forebrain, specifically, spinal motor neurons (MNs) and forebrain cholinergic neurons (FCNs). Conditional inactivation of Isl1, a LIM homeodomain factor expressed in both differentiating MNs and FCNs, led to a drastic loss of cholinergic neurons in the developing spinal cord and forebrain. We found that Isl1 forms two related, but distinct types of complexes, the Isl1-Lhx3-hexamer in MNs and the Isl1-Lhx8-hexamer in FCNs. Interestingly, our genome-wide ChIP-seq analysis revealed that the Isl1-Lhx3-hexamer binds to a suite of cholinergic pathway genes encoding the core constituents of the cholinergic neurotransmission system, such as acetylcholine synthesizing enzymes and transporters. Consistently, the Isl1-Lhx3-hexamer directly coordinated upregulation of cholinergic pathways genes in embryonic spinal cord. Similarly, in the developing forebrain, the Isl1-Lhx8-hexamer was recruited to the cholinergic gene battery and promoted cholinergic gene expression. Furthermore, the expression of the Isl1-Lhx8-complex enabled the acquisition of cholinergic fate in embryonic stem cell-derived neurons. Together, our studies show a shared molecular mechanism that determines the cholinergic neuronal fate in the spinal cord and forebrain, and uncover an important gene regulatory mechanism that directs a specific neurotransmitter identity in vertebrate CNS development.
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Affiliation(s)
- Hyong-Ho Cho
- Pediatric Neuroscience Research Program, Papé Family Pediatric Research Institute, Department of Pediatrics, Portland, Oregon, United States of America
- Department of Otolaryngology–Head and Neck Surgery, Chonnam National University Medical School, Gwangju, Korea
| | - Francesca Cargnin
- Pediatric Neuroscience Research Program, Papé Family Pediatric Research Institute, Department of Pediatrics, Portland, Oregon, United States of America
| | - Yujin Kim
- Pediatric Neuroscience Research Program, Papé Family Pediatric Research Institute, Department of Pediatrics, Portland, Oregon, United States of America
| | - Bora Lee
- Pediatric Neuroscience Research Program, Papé Family Pediatric Research Institute, Department of Pediatrics, Portland, Oregon, United States of America
| | - Ryuk-Jun Kwon
- Pediatric Neuroscience Research Program, Papé Family Pediatric Research Institute, Department of Pediatrics, Portland, Oregon, United States of America
| | - Heejin Nam
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Rongkun Shen
- Pediatric Neuroscience Research Program, Papé Family Pediatric Research Institute, Department of Pediatrics, Portland, Oregon, United States of America
- Vollum Institute, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Anthony P. Barnes
- Pediatric Neuroscience Research Program, Papé Family Pediatric Research Institute, Department of Pediatrics, Portland, Oregon, United States of America
- Department of Cell and Developmental Biology, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Jae W. Lee
- Pediatric Neuroscience Research Program, Papé Family Pediatric Research Institute, Department of Pediatrics, Portland, Oregon, United States of America
- Department of Cell and Developmental Biology, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Seunghee Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Soo-Kyung Lee
- Pediatric Neuroscience Research Program, Papé Family Pediatric Research Institute, Department of Pediatrics, Portland, Oregon, United States of America
- Vollum Institute, Oregon Health & Science University, Portland, Oregon, United States of America
- Department of Cell and Developmental Biology, Oregon Health & Science University, Portland, Oregon, United States of America
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Kim J, Nam H, An S, Oh Y, Ji Y, Lee R. SU-E-I-62: A New Metal Artifact Reduction Algorithm Using Edge Preserving Smoothing Filter. Med Phys 2013. [DOI: 10.1118/1.4814172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kim J, Nam H, Park S, Wu H, Ye S. Assessment of Tracking Jaws Based on MLC Aperture to Reduce Normal Tissue Irradiation in VMAT. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Park SJ, Shon OJ, Rim JA, Lee JK, Kim JS, Nam H, Kim H. Calixazacrown ethers for copper(II) ion-selective electrode. Talanta 2012; 55:297-304. [PMID: 18968373 DOI: 10.1016/s0039-9140(01)00420-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2001] [Revised: 04/19/2001] [Accepted: 04/23/2001] [Indexed: 11/18/2022]
Abstract
Five novel 1,3-alternate calix[4]azacrown ethers having 2-picolyl, 3-picolyl, and benzyl unit on the nitrogen atom were synthesized and used as ionophores for transition metal-selective polymeric membrane electrodes. The electrode based on 2-picolyl armed 1,3-alternate calix [4] azacrown ether exhibited Nernstian response toward copper (II) ion over a concentration range (10(-4.5) M-10(-2.5) M). The detection limit was determined as 10(-5) M in pH 7 and the selectivity coefficients for possible interfering cations were evaluated. Anions in the sample solution strongly affected the electrode response.
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Affiliation(s)
- S J Park
- School of Chemistry and Molecular Engineering, Center for Molecular Catalysis, Seoul National University, Seoul 151-742, South Korea
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Maris P, Vary JP, Navrátil P, Ormand WE, Nam H, Dean DJ. Origin of the anomalous long lifetime of ¹⁴C. Phys Rev Lett 2011; 106:202502. [PMID: 21668224 DOI: 10.1103/physrevlett.106.202502] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Indexed: 05/30/2023]
Abstract
We report the microscopic origins of the anomalously suppressed beta decay of ¹⁴C to ¹⁴N using the ab initio no-core shell model with the Hamiltonian from the chiral effective field theory including three-nucleon force terms. The three-nucleon force induces unexpectedly large cancellations within the p shell between contributions to beta decay, which reduce the traditionally large contributions from the nucleon-nucleon interactions by an order of magnitude, leading to the long lifetime of ¹⁴C.
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Affiliation(s)
- P Maris
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011-3160, USA
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Ryu JS, Choi C, Yang S, Nam H, Kim H, Lee MH. Development of prognostic biomarker in pathologic stage I NSCLC patients: Protein expressions involving in DNA damage response. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.7578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Dean DJ, Langanke K, Nam H, Nazarewicz W. Pairing reentrance phenomenon in heated rotating nuclei in the shell-model Monte Carlo approach. Phys Rev Lett 2010; 105:212504. [PMID: 21231296 DOI: 10.1103/physrevlett.105.212504] [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] [Subscribe] [Scholar Register] [Received: 01/07/2009] [Revised: 09/21/2010] [Indexed: 05/30/2023]
Abstract
Rotational motion of heated 72Ge is studied within the microscopic shell-model Monte Carlo approach. We investigate the angular momentum alignment and nuclear pairing correlations associated with J^{π} Cooper pairs as a function of the rotational frequency and temperature. The reentrance of pairing correlations with temperature is predicted at high rotational frequencies. It manifests itself through the anomalous behavior of specific heat and level density.
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Affiliation(s)
- D J Dean
- Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831, USA
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Nam H, Huh S, Ju S, Choi J, Kim B. PET/CT Guided Brachytherapy Planning for Cervical Cancer. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lee J, Choi D, Huh S, Park W, Nam H, Yang J, Nam S, Lee J. Omitting Postoperative Radiation after Excision for Ductal Carcinoma In Situ of the Breast. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nam H, Huh SJ, Park W, Bae DS, Kim BG, Lee JH, Kim CK, Park BK. Prognostic significance of MRI-detected bladder muscle and/or serosal invasion in patients with cervical cancer treated with radiotherapy. Br J Radiol 2010. [DOI: 10.1259/bjr/6646798] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Nam H, Huh SJ, Park W, Bae DS, Kim BG, Lee JH, Kim CK, Park BK. Prognostic significance of MRI-detected bladder muscle and/or serosal invasion in patients with cervical cancer treated with radiotherapy. Br J Radiol 2010; 83:868-73. [PMID: 20846984 DOI: 10.1259/bjr/66646798] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In cervical cancer, the prognostic significance of bladder wall invasion on MRI without pathological evidence of mucosal invasion is not known. From 454 consecutive patients with cervical cancer who were treated with radiation, we reviewed images and analysed the outcome of 92 patients with the Federation of International Gynecology and Obstetrics (FIGO) stage IIIB-IVA. We analysed the patients in three groups, normal, wall (muscle and/or serosal) invasion and mucosal invasion, according to the findings on the MRI. Kaplan-Meier life table analysis and the log-rank test were used to assess the survival rates and differences according to prognostic factors. MRI detected abnormalities in the bladder wall in 42 patients (45.6%): wall invasion in 24 and mucosal invasion in 18. 5 of 18 patients, suspected on MRI to have mucosal invasion, showed no pathological evidence of mucosal invasion. Median follow-up period was 34 months. 3-year cause-specific survival (CSS) in the normal group compared with the wall invasion group was 76.2% vs 71.4% (p = 0.48). 3-year CSS for the wall invasion group compared with the mucosal invasion group was 71.4% vs 54.3% (p = 0.04). Mucosal invasion on MRI (p = 0.03) and concurrent chemoradiotherapy (p = 0.01) was significant for CSS. The prognosis for patients with cervical cancer with evidence of muscle and/or serosal invasion of the bladder on MRI may not differ from that for patients without abnormality on MRI. In patients with the MRI finding of bladder mucosal invasion, further studies should be conducted regarding the role of cystoscopy to determine the need for pathological confirmation.
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Affiliation(s)
- H Nam
- Department of Radiation Oncology, Samsung Medical Centre, Sungkyunkwan University School of Medicine, 135-710, Irwon-dong 50, Gangnam-gu, Seoul, South Korea
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Nam H, Huh S, Lee J. Prognostic Significance of MRI-detected Bladder Muscle and/or Serosal Invasion in Cervical Cancer Patients Treated with Radiotherapy. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lee J, Huh S, Nam H, Ju S, Choi J, Kim B. 8050 Usefulness of FDG-PET/CT guided brachytherapy planning in patients with uterine cervical cancer. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71572-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Park D, Nam H, Jung T, Jung H, Lee S, Kim D. 69. Clinical, biochemical and electrophysiological study in chronic alcoholism. Clin Neurophysiol 2009. [DOI: 10.1016/j.clinph.2008.10.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Park D, Nam H, Kim J, Jeong J, Lee S. 65. Lumbrical and interosseus recording of 700 hands with carpal tunnel syndrome. Clin Neurophysiol 2008. [DOI: 10.1016/j.clinph.2007.11.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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