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Kim JY, Kye SJ, Lee HJ, Gaikwad S, Lee HS, Jung SC, Choi KS. Development of a highly immunogenic Newcastle disease virus chicken vaccine strain of duck origin. Poult Sci 2016; 95:790-7. [PMID: 26769266 DOI: 10.3382/ps/pev377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 10/26/2015] [Indexed: 11/20/2022] Open
Abstract
Newcastle disease virus (NDV) strain NDRL0901 was developed as a live vaccine candidate for control of Newcastle disease. NDV isolate KR/duck/13/07 (DK1307) of duck origin was used as the selected vaccine strain. DK1307 was passaged 6 times in chickens. Then a single clone from the chicken-adapted virus (DK1307C) was finally selected, and the vaccine strain was named NDRL0901. DK1307C and the clone NDRL0901 viruses showed enhanced immunogenicity compared to the DK1307 virus. Principal component analysis based on fusion and hemagglutinin-neuraminidase genes revealed the codon usage pattern in the dataset is distinct separating duck viral sequences and avian sequences, and passage of the duck origin virus into the chicken host causes deviation in the codon usage pattern. The NDRL0901 virus was avirulent and did not acquire viral virulence even after 7 back passages in chickens. When day-old chicks were vaccinated with the NDRL0901 virus via spray, eye drops, and drinking water, the vaccinated birds showed no clinical signs and had significant protection efficacy (>80%) against very virulent NDV (Kr005 strain) infection regardless of the administration route employed. The results indicate that the NDRL0901 strain is safe in chickens and can offer protective immunity.
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Choi JA, Jung YS, Kim JY, Kim HM, Lim IK. Inhibition of breast cancer invasion by TIS21/BTG2/Pc3-Akt1-Sp1-Nox4 pathway targeting actin nucleators, mDia genes. Oncogene 2016; 35:83-93. [PMID: 25798836 DOI: 10.1038/onc.2015.64] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 01/18/2015] [Accepted: 01/30/2015] [Indexed: 02/06/2023]
Abstract
The mammalian homolog of Drosophila diaphanous (mDia), actin nucleator, has been known to participate in the process of invasion and metastasis of cancer cells via regulating a number of actin-related biological processes. We have previously reported that tumor suppressor TIS21(/BTG2/Pc3) (TIS21) inhibits invadopodia formation by downregulating reactive oxygen species (ROS) in MDA-MB-231 cells. We herein report that TIS21(/BTG2/Pc3) downregulates diaphanous-related formin (DRF) expression via reducing NADPH oxidase 4 (Nox4)-derived ROS generation by Akt1 activation and subsequently impairs invasion activity of the highly invasive breast cancer cells. Knockdown of Akt1 by RNA interference recovered the TIS21(/BTG2/Pc3)-inhibited F-actin remodeling and ROS generation by recovering Nox4 expression. Furthermore, Sp1-mediated Nox4 transcription was downregulated by TIS21(/BTG2/Pc3)-Akt1 signals, leading to the inhibition of cancer cell invasion via F-actin remodeling by mDia genes. To our best knowledge, this is the first study to show that TIS21(/BTG2/Pc3)-Akt1 inhibited Sp1-Nox4-ROS cascade, subsequently reducing invasion activity via inhibition of mDia family genes.
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Kim JY, Winters JK, Kim J, Bernstein L, Raz D, Gomez SL. Birthplace and esophageal cancer incidence patterns among Asian-Americans. Dis Esophagus 2016; 29:99-104. [PMID: 25487184 PMCID: PMC5752430 DOI: 10.1111/dote.12302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The incidence of esophageal adenocarcinoma in the United States has risen rapidly over the last 30 years, whereas the incidence of esophageal squamous cell carcinoma has fallen dramatically. In contrast, parts of Asia have extremely high rates of squamous cell carcinoma, but virtually no adenocarcinoma. Within the United States, Asian-Americans as a whole, have low rates of esophageal adenocarcinoma and higher rates of squamous cell carcinoma. It is unclear what the patterns are for those Asians born in the United States. The relative influence of ethnicity and environment on the incidence of esophageal cancer in this population is unknown. We identified all cases of esophageal adenocarcinoma and squamous cell carcinoma from the California Cancer Registry 1988-2004, including 955 cases among 6 different Asian ethnicities. Time trends were examined using Joinpoint software to calculate the annual percentage changes in regression models. Rates of esophageal squamous cell carcinoma varied substantially among different Asian ethnic groups, but squamous cell carcinoma was much more common than adenocarcinoma in both foreign-born and US-born Asian-Americans. Rates of squamous cell carcinoma were slightly higher among US-born Asian men (4.0 per 100,000) compared with foreign-born Asian men (3.2 per 100,000) and White men (2.2 per 100,000), P = 0.03. Rates of adenocarcinoma were also slighter higher among US-born Asian men (1.2 per 100,000) compared with foreign-born Asian men (0.7 per 100,000), P = 0.01. Rates of squamous cell carcinoma decreased for both US-born and foreign-born Asians during this period, whereas adenocarcinoma remained low and stable. These results provide better insight into the genetic and environmental factors affecting the changing incidence of esophageal cancer histologies in the United States and Asia.
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Kim JY, Park YC. Gene organization and characterization of the complete mitogenome of Hypsugo alaschanicus (Chiroptera: Vespertilionidae). GENETICS AND MOLECULAR RESEARCH 2015; 14:16325-31. [PMID: 26662427 DOI: 10.4238/2015.december.8.24] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We sequenced and characterized the complete mitogenome of Hypsugo alaschanicus (Vespertilionidae) to provide more data for comparative mitogenomics of the genus Hypsugo. The mitogenome of H. alaschanicus is a circular molecule of 17,300 bp, consisting of a control region and a typically conserved set of 37 vertebrate genes containing 13 protein-coding genes (PCGs), 22 tRNA genes, and two rRNA genes (12S rRNA and 16S rRNA). The mitogenome of H. alaschanicus is AT-biased, with a nucleotide composition of 34.1 A, 30.9 T, 22.4 C, and 12.6% G. In the 13 mitochondrial PCGs of H. alaschanicus, the start codon ATG is used in all PCGs, except Nd2 and Nd3 (which use ATT), and Nd5 (which uses ATA). Eight PCGs (Nd1, Cox1, Cox2, Atp8, Atp6, Nd4L, Nd5, and Nd6) use TAA as the stop codon, while the stop codon AGA occurs only in Cytb. Incomplete stop codons (T--) are used in the other four PCGs (Cox3, Nd2, Nd3, and Nd4). These findings contribute to our understanding of the nucleotide composition and molecular evolution of the mitogenomes of the genus Hypsugo, and provide more data for comparative mitogenomics and higher phylogeny in the family Vespertilionidae.
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Kim JY, Park YC. Detection and sequence analysis of the DNA repair gene RAD51 in the Korean spider Callobius koreanus (Amaurobiidae). GENETICS AND MOLECULAR RESEARCH 2015; 14:14646-8. [PMID: 26600524 DOI: 10.4238/2015.november.18.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We identified a partial sequence (483 bp) of the RAD51 gene from the Korean spider Callobius koreanus. Sequence variation was found at one position during alignment with the human RAD51 gene sequence. This partial sequence included the region corresponding to exon 4 in the human RAD51 gene, which encodes 39 amino acids. These results show that the RAD51 gene is highly conserved between human and spiders.
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Jang HJ, Oh CH, Yoon SH, Kim JY, Park HC, Kim YH. The Clinical and Radiological Effect of Abnormal Axis after Cervical Arthroplasty. J Korean Neurosurg Soc 2015; 58:225-30. [PMID: 26539265 PMCID: PMC4630353 DOI: 10.3340/jkns.2015.58.3.225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 06/11/2015] [Accepted: 06/17/2015] [Indexed: 11/27/2022] Open
Abstract
Objective The clinical outcomes according to the radiological results after cervical total disc replacement (TDR) are not well established. Here, the authors reviewed the clinical results according to the asymmetry in radiographs. Methods This retrospective analysis included patients after TDR (Mobi-C® disc) with at least 12 months follow up, and the clinical and radiological data were obtained preoperatively and postoperatively for 12 months. Clinical outcome measures numerical rating scale (NRS) score for neck pain, visual analog scale (VAS) for arm pain, and the Oswestry disability index (ODI) value. The asymmetries of TDRs were evaluated on the anterior-posterior (AP) and the lateral radiographs, and the radiographic adjacent segment degenerations were evaluated for 12 months. Results A total of 24 patients (one level cervical TDR; 10 male and 14 female; aged 41.50±8.35 years) were included in this study. The clinical results including NRS for neck pain, VAS for arm pain, and ODIs were similar between the normal and asymmetrized TDRs in AP and lateral radiographs. The radiographic adjacent segment degenerations were significantly increased in deviated TDRs (AP>10 mm asymmetry and lateral>10 mm asymmetry). Conclusion Asymmetrical location of TDR is not related to the clinical outcomes, but related to the risk of radiographic adjacent disc segment degeneration.
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Kim JY, Lee JS, Han YS, Lee JH, Bae I, Yoon YM, Kwon SM, Lee SH. Pretreatment with Lycopene Attenuates Oxidative Stress-Induced Apoptosis in Human Mesenchymal Stem Cells. Biomol Ther (Seoul) 2015; 23:517-24. [PMID: 26535076 PMCID: PMC4624067 DOI: 10.4062/biomolther.2015.085] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 07/29/2015] [Accepted: 08/03/2015] [Indexed: 12/20/2022] Open
Abstract
Human mesenchymal stem cells (MSCs) have been used in cell-based therapy to promote revascularization after peripheral or myocardial ischemia. High levels of reactive oxygen species (ROS) are involved in the senescence and apoptosis of MSCs, causing defective neovascularization. Here, we examined the effect of the natural antioxidant lycopene on oxidative stress-induced apoptosis in MSCs. Although H2O2 (200 μM) increased intracellular ROS levels in human MSCs, lycopene (10 μM) pretreatment suppressed H2O2-induced ROS generation and increased survival. H2O2-induced ROS increased the levels of phosphorylated p38 mitogen activated protein kinase (MAPK), Jun-N-terminal kinase (JNK), ataxia telangiectasia mutated (ATM), and p53, which were inhibited by lycopene pretreatment. Furthermore, lycopene pretreatment decreased the expression of cleaved poly (ADP ribose) polymerase-1 (PARP-1) and caspase-3 and increased the expression of B-cell lymphoma 2 (Bcl-2) and Bcl-2-associated X protein (Bax), which were induced by H2O2 treatment. Moreover, lycopene significantly increased manganese superoxide dismutase (MnSOD) expression and decreased cellular ROS levels via the PI3K-Akt pathway. Our findings show that lycopene pretreatment prevents ischemic injury by suppressing apoptosis-associated signal pathway and enhancing anti-oxidant protein, suggesting that lycopene could be developed as a beneficial broad-spectrum agent for the successful MSC transplantation in ischemic diseases.
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Choi HJ, Kim JY, Lim SC, Kim G, Yun HJ, Choi HS. Dipeptidyl peptidase 4 promotes epithelial cell transformation and breast tumourigenesis via induction of PIN1 gene expression. Br J Pharmacol 2015; 172:5096-109. [PMID: 26267432 PMCID: PMC4687806 DOI: 10.1111/bph.13274] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 06/19/2015] [Accepted: 07/10/2015] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND AND PURPOSE Dipeptidyl peptidase 4 (DPP4) is an aminopeptidase that is widely expressed in different cell types. Recent studies suggested that DPP4 plays an important role in tumour progression in several human malignancies. Here we have examined the mechanisms by which up-regulation of DPP4 expression causes epithelial transformation and mammary tumourigenesis. EXPERIMENTAL APPROACH Expression of DPP4 and the peptidylprolyl cis/trans isomerase, NIMA-interacting 1 (PIN1), and the cytotoxic effects of combined treatment with sitagliptin and juglone were investigated by immunohistochemistry, immunoblotting, real-time PCR, TUNEL and soft agar assays, using MCF7 cells. The effects of sitagliptin on tumour development in vivo were studied in the syngeneic 4T1 metastatic breast cancer model. KEY RESULTS Activity of the transcription factor E2F1 induced by EGF was enhanced by DPP4, thus increasing PIN1 expression. Furthermore, DPP4 enhanced MEK/ERK and JNK/c-Jun signalling induced by EGF, inducing AP-1 activity and epithelial cell transformation. In contrast, DPP4 silencing or DPP4 inhibition in MCF7 cells inhibited PIN1 expression via E2F1 activity induced by EGF, decreasing colony formation and inducing DNA fragmentation. In the syngeneic 4T1 metastatic breast cancer model, DPP4 overexpression increased tumour development, whereas treatment with sitagliptin and/or juglone suppressed it. Consistent with these observations, DPP4 levels were positively correlated with PIN1 expression in human breast cancer. CONCLUSIONS AND IMPLICATIONS DPP4 promoted EGF-induced epithelial cell transformation and mammary tumourigenesis via induction of PIN1 expression, suggesting that sitagliptin targeting of DPP4 could be a treatment strategy in patients with breast cancer.
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Kim JY, Kim DK, Yoon SH. Remote Cerebellar Hemorrhage after Surgery for Degenerative Lumbar Spine Disease: A Case Report. Korean J Neurotrauma 2015; 11:201-4. [PMID: 27169095 PMCID: PMC4847508 DOI: 10.13004/kjnt.2015.11.2.201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 09/30/2015] [Accepted: 10/12/2015] [Indexed: 11/17/2022] Open
Abstract
Spine surgery has been increased as the population ages, but the occurrence of unusual complication such as remote cerebellar hemorrhage (RCH) is not well understood. We recently experienced a case of RCH in a 60-year-old woman showed neurologic dysfunction after degenerative lumbar spine surgery. There was no definite dural tearing and cerebrospinal fluid (CSF) loss during operation. Brain magnetic resonance imaging showed cerebellar hemorrhage. The patient received conservative management and rehabilitation program. Most other reports have been suggested that RCH after spinal surgery might be related with excessive CSF drainage perioperatively. Minimizing of CSF loss during operation would be helpful to reduce the risk of RCH. If large volume of CSF has been lost accompanied by neurologic deterioration, brain imaging is necessary simultaneously.
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Kim JY, Jung HJ, Yoon MJ. VASA (DDX4) is a Putative Marker for Spermatogonia, Spermatocytes and Round Spermatids in Stallions. Reprod Domest Anim 2015; 50:1032-8. [DOI: 10.1111/rda.12632] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 09/22/2015] [Indexed: 02/05/2023]
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Kim JY, Kim DK, Yoon SH. Isolated Painless Foot Drop due to Cerebral Infarction Mimicking Lumbar Radiculopathy: A Case Report. KOREAN JOURNAL OF SPINE 2015; 12:210-2. [PMID: 26512287 PMCID: PMC4623187 DOI: 10.14245/kjs.2015.12.3.210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 08/31/2015] [Accepted: 09/01/2015] [Indexed: 11/27/2022]
Abstract
Although they usually originate from peripheral problems, foot drop is caused by lesions affecting the neural pathway related to dorsiflexor muscles, whether of central or peripheral origin. We present a patient with sudden isolated foot drop caused by a small infarct in the primary motor cortex mimicking a peripheral origin. This report indicates that patients presenting isolated foot drop should be managed carefully and the possibility of both central and peripheral causes should be considered. To our knowledge, this is the first report of sudden isolated foot drop caused by a cortical infarction mimicking lumbar radiculopathy.
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Takhistov V, Abe K, Haga Y, Hayato Y, Ikeda M, Iyogi K, Kameda J, Kishimoto Y, Miura M, Moriyama S, Nakahata M, Nakajima T, Nakano Y, Nakayama S, Orii A, Sekiya H, Shiozawa M, Takeda A, Tanaka H, Tomura T, Wendell RA, Irvine T, Kajita T, Kametani I, Kaneyuki K, Nishimura Y, Richard E, Okumura K, Labarga L, Fernandez P, Gustafson J, Kachulis C, Kearns E, Raaf JL, Stone JL, Sulak LR, Berkman S, Nantais CM, Tanaka HA, Tobayama S, Goldhaber M, Carminati G, Kropp WR, Mine S, Weatherly P, Renshaw A, Smy MB, Sobel HW, Ganezer KS, Hartfiel BL, Hill J, Hong N, Kim JY, Lim IT, Himmel A, Li Z, Scholberg K, Walter CW, Wongjirad T, Ishizuka T, Tasaka S, Jang JS, Learned JG, Matsuno S, Smith SN, Friend M, Hasegawa T, Ishida T, Ishii T, Kobayashi T, Nakadaira T, Nakamura K, Oyama Y, Sakashita K, Sekiguchi T, Tsukamoto T, Suzuki AT, Takeuchi Y, Yano T, Hirota S, Huang K, Ieki K, Kikawa T, Minamino A, Nakaya T, Suzuki K, Takahashi S, Fukuda Y, Choi K, Itow Y, Suzuki T, Mijakowski P, Frankiewicz K, Hignight J, Imber J, Jung CK, Li X, Palomino JL, Wilking MJ, Yanagisawa C, Ishino H, Kayano T, Kibayashi A, Koshio Y, Mori T, Sakuda M, Kuno Y, Tacik R, Kim SB, Okazawa H, Choi Y, Nishijima K, Koshiba M, Suda Y, Totsuka Y, Yokoyama M, Bronner C, Hartz M, Martens K, Marti L, Suzuki Y, Vagins MR, Martin JF, de Perio P, Konaka A, Chen S, Zhang Y, Wilkes RJ. Search for Nucleon and Dinucleon Decays with an Invisible Particle and a Charged Lepton in the Final State at the Super-Kamiokande Experiment. PHYSICAL REVIEW LETTERS 2015; 115:121803. [PMID: 26430987 DOI: 10.1103/physrevlett.115.121803] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Indexed: 06/05/2023]
Abstract
Search results for nucleon decays p→e^{+}X, p→μ^{+}X, n→νγ (where X is an invisible, massless particle) as well as dinucleon decays np→e^{+}ν, np→μ^{+}ν, and np→τ^{+}ν in the Super-Kamiokande experiment are presented. Using single-ring data from an exposure of 273.4 kton·yr, a search for these decays yields a result consistent with no signal. Accordingly, lower limits on the partial lifetimes of τ_{p→e^{+}X}>7.9×10^{32} yr, τ_{p→μ^{+}X}>4.1×10^{32} yr, τ_{n→νγ}>5.5×10^{32} yr, τ_{np→e^{+}ν}>2.6×10^{32} yr, τ_{np→μ^{+}ν}>2.2×10^{32} yr, and τ_{np→τ^{+}ν}>2.9×10^{31} yr at a 90% confidence level are obtained. Some of these searches are novel.
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Kim JY, Lim SC, Kim G, Yun HJ, Ahn SG, Choi HS. Interleukin-33/ST2 axis promotes epithelial cell transformation and breast tumorigenesis via upregulation of COT activity. Oncogene 2015. [PMID: 25531326 DOI: 10.1038/onc.2014.418.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Cytokines of the interleukin-1 (IL-1) family, such as IL-1α/β and IL-18, have pleiotropic activities in innate and adaptive immune responses in host defense and diseases. Insight into their biological functions helped develop novel therapeutic approaches to treat human inflammatory diseases. IL-33 is an important member of the IL-1 family of cytokines and is a ligand of the ST2 receptor, a member of the IL-1 receptor family. However, the role of the IL-33/ST2 axis in tumor growth and metastasis of breast cancer remains unclear. Here, we demonstrate that IL-33 is a critical tumor promoter during epithelial cell proliferation and tumorigenesis in the breast. IL-33 dose- and time-dependently increased Cancer Osaka Thyroid (COT) phosphorylation via ST2-COT interaction in normal epithelial and breast cancer cells. The IL-33/ST2/COT cascade induced the activation of the MEK-ERK (MEK-extracellular signal-regulated kinase), JNK-cJun (cJun N-terminal kinase-cJun) and STAT3 (signal transducer and activator of transcription 3) signaling pathways, followed by increased AP-1 and stat3 transcriptional activity. When small interfering RNAs of ST2 and COT were introduced into cells, IL-33-induced AP-1 and stat3 activity were significantly decreased, unlike that in the control cells. The inhibition of COT activity resulted in decreased IL-33-induced epithelial cell transformation, and knockdown of IL-33, ST2 and COT in breast cancer cells attenuated tumorigenicity of breast cancer cells. Consistent with these observations, ST2 levels were positively correlated with COT expression in human breast cancer. These findings provide a novel perspective on the role of the IL-33/ST2/COT signaling pathway in supporting cancer-associated inflammation in the tumor microenvironment. Therapeutic approaches that target this pathway may, therefore, effectively inhibit carcinogenesis in the breast.
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Kim JY, Lim SC, Kim G, Yun HJ, Ahn SG, Choi HS. Interleukin-33/ST2 axis promotes epithelial cell transformation and breast tumorigenesis via upregulation of COT activity. Oncogene 2015; 34:4928-38. [PMID: 25531326 DOI: 10.1038/onc.2014.418] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 10/08/2014] [Accepted: 10/31/2014] [Indexed: 02/07/2023]
Abstract
Cytokines of the interleukin-1 (IL-1) family, such as IL-1α/β and IL-18, have pleiotropic activities in innate and adaptive immune responses in host defense and diseases. Insight into their biological functions helped develop novel therapeutic approaches to treat human inflammatory diseases. IL-33 is an important member of the IL-1 family of cytokines and is a ligand of the ST2 receptor, a member of the IL-1 receptor family. However, the role of the IL-33/ST2 axis in tumor growth and metastasis of breast cancer remains unclear. Here, we demonstrate that IL-33 is a critical tumor promoter during epithelial cell proliferation and tumorigenesis in the breast. IL-33 dose- and time-dependently increased Cancer Osaka Thyroid (COT) phosphorylation via ST2-COT interaction in normal epithelial and breast cancer cells. The IL-33/ST2/COT cascade induced the activation of the MEK-ERK (MEK-extracellular signal-regulated kinase), JNK-cJun (cJun N-terminal kinase-cJun) and STAT3 (signal transducer and activator of transcription 3) signaling pathways, followed by increased AP-1 and stat3 transcriptional activity. When small interfering RNAs of ST2 and COT were introduced into cells, IL-33-induced AP-1 and stat3 activity were significantly decreased, unlike that in the control cells. The inhibition of COT activity resulted in decreased IL-33-induced epithelial cell transformation, and knockdown of IL-33, ST2 and COT in breast cancer cells attenuated tumorigenicity of breast cancer cells. Consistent with these observations, ST2 levels were positively correlated with COT expression in human breast cancer. These findings provide a novel perspective on the role of the IL-33/ST2/COT signaling pathway in supporting cancer-associated inflammation in the tumor microenvironment. Therapeutic approaches that target this pathway may, therefore, effectively inhibit carcinogenesis in the breast.
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Park SR, Kim HJ, Park HK, Kim JY, Kim NS, Byun KS, Moon TK, Byun JW, Moon JH, Choi GS. Classification by causes of dark circles and appropriate evaluation method of dark circles. Skin Res Technol 2015; 22:276-83. [PMID: 26346687 DOI: 10.1111/srt.12258] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Dark circles refer to a symptom that present darkness under the eyes. Because of improvement in the quality of life, the dark circles have been recognized as one of major cosmetic concerns. However, it is not easy to classify the dark circles because they have various causes. METHODS To select suitable instruments and detailed evaluation items, the dark circles were classified according to the causes through visual assessment, Wood's lamp test, and medical history survey for 100 subjects with dark circles. After the classification, were newly recruited for instrument conformity assessment. Through this, suitable instruments for dark circle evaluation were selected. We performed a randomized clinical trial for dark circles, a placebo-controlled double-blind study, using effective parameters of the instruments selected from the preliminary test. RESULTS Dark circles of vascular type (35%) and mixed type (54%), a combination of pigmented and vascular types, were the most common. Twenty four subjects with the mixed type dark circles applied the test product (Vitamin C 3%, Vitamin A 0.1%, Vitamin E 0.5%) and placebo on randomized split-face for 8 weeks. The effective parameters (L*, a, M.I., E.I., quasi L*, quasi a* and dermal thickness) were measured during the study period. Result showed that the L* value of Chromameter(®) , Melanin index (M.I.) of Mexameter(®) and quasi L* value obtained by image analysis improved with statistical significance after applying the test product compared with the placebo product. CONCLUSION We classified the dark circles according to the causes of the dark circles and verified the reliability of the parameter obtained by the instrument conformity assessment used in this study through the efficacy evaluation. Also based on this study, we were to suggest newly established methods which can be applied to the evaluation of efficacy of functional cosmetics for dark circles.
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Lee JK, Oh CH, Kim JY, Park HC, Yoon SH. Brain Activation Evoked by Sensory Stimulation in Patients with Spinal Cord Injury : Functional Magnetic Resonance Imaging Correlations with Clinical Features. J Korean Neurosurg Soc 2015; 58:242-7. [PMID: 26539268 PMCID: PMC4630356 DOI: 10.3340/jkns.2015.58.3.242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 08/05/2015] [Accepted: 08/17/2015] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE The purpose of this study is to determine whether the changes of contralateral sensorimotor cortical activation on functional magnetic resonance imaging (fMRI) can predict the neurological outcome among spinal cord injury (SCI) patients when the great toes are stimulated without notice. METHODS This study enrolled a total of 49 patients with SCI and investigated each patient's preoperative fMRI, postoperative fMRI, American Spinal Injury Association (ASIA) score, and neuropathic pain occurrence. Patients were classified into 3 groups according to the change of blood oxygenation level dependent (BOLD) response on perioperative fMRI during proprioceptive stimulation with repetitive passive toe movements : 1) patients with a response of contralateral sensorimotor cortical activation in fMRI were categorized; 2) patients with a response in other regions; and 3) patients with no response. Correlation between the result of fMRI and each parameter was analyzed. RESULTS In fMRI data, ASIA score was likely to show greater improvement in patients in group A compared to those belonging to group B or C (p<0.001). No statistical significance was observed between the result of fMRI and neuropathic pain (p=0.709). However, increase in neuropathic pain in response to the signal change of the ipsilateral frontal lobe on fMRI was statistically significant (p=0.030). CONCLUSION When there was change of BOLD response at the contralateral sensorimotor cortex on perioperative fMRI after surgery, relief of neurological symptoms was highly likely for traumatic SCI patients. In addition, development of neuropathic pain was likely to occur when there was change of BOLD response at ipsilateral frontal lobe.
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Ko AR, Kim JY, Hyun HW, Kim JE. Endoplasmic reticulum (ER) stress protein responses in relation to spatio-temporal dynamics of astroglial responses to status epilepticus in rats. Neuroscience 2015; 307:199-214. [PMID: 26335380 DOI: 10.1016/j.neuroscience.2015.08.061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 08/24/2015] [Accepted: 08/25/2015] [Indexed: 12/31/2022]
Abstract
In the present study, we investigated whether endoplasmic reticulum (ER) stress is associated with neuronal- and astroglial-death in the hippocampus using LiCl-pilocarpine-induced status epilepticus (SE) rat model. Glucose-related protein (GRP) 78 and protein disulfide isomerase (PDI) expressions were transiently increased in CA1 neurons and dentate granule cells, and subsequently decreased in these cells following SE. GRP94 and calnexin (CNX) expression was gradually reduced in CA1 neurons, not in dentate granule cells. Phospho-protein kinase RNA (PKR)-like ER kinase (pPERK), phospho-eukaryotic initiation factor 2α (peIF2A) and CCAAT/enhancer-binding protein homologous protein (CHOP) immunoreactivities were observed in 17%, 12% and 7% of degenerating CA1 neurons, respectively. GRP 78 and PDI expressions were also up-regulated in reactive astrocytes within the CA1-3 regions. In the molecular layer of the dentate gyrus, PDI-positive astrocytes showed TUNEL signal, nuclear apoptosis inducing factor translocation and pPERK/peIF2A/CHOP immunoreactivities. Four weeks after SE, clasmatodendritic astrocytes showed pPERK peIF2A and CNX immunoreactivities without CHOP expression. These findings indicate that SE-induced ER stress may be associated with astroglial apoptosis and autophagic astroglial death in the regional-specific pattern.
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Choi HJ, Kim JY, Lim SC, Kim G, Yun HJ, Choi HS. Dipeptidyl peptidase 4 promotes epithelial cell transformation and breast tumourigenesis via induction of PIN1 gene expression. Br J Pharmacol 2015. [PMID: 26267432 DOI: 10.1111/bph.13274.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE Dipeptidyl peptidase 4 (DPP4) is an aminopeptidase that is widely expressed in different cell types. Recent studies suggested that DPP4 plays an important role in tumour progression in several human malignancies. Here we have examined the mechanisms by which up-regulation of DPP4 expression causes epithelial transformation and mammary tumourigenesis. EXPERIMENTAL APPROACH Expression of DPP4 and the peptidylprolyl cis/trans isomerase, NIMA-interacting 1 (PIN1), and the cytotoxic effects of combined treatment with sitagliptin and juglone were investigated by immunohistochemistry, immunoblotting, real-time PCR, TUNEL and soft agar assays, using MCF7 cells. The effects of sitagliptin on tumour development in vivo were studied in the syngeneic 4T1 metastatic breast cancer model. KEY RESULTS Activity of the transcription factor E2F1 induced by EGF was enhanced by DPP4, thus increasing PIN1 expression. Furthermore, DPP4 enhanced MEK/ERK and JNK/c-Jun signalling induced by EGF, inducing AP-1 activity and epithelial cell transformation. In contrast, DPP4 silencing or DPP4 inhibition in MCF7 cells inhibited PIN1 expression via E2F1 activity induced by EGF, decreasing colony formation and inducing DNA fragmentation. In the syngeneic 4T1 metastatic breast cancer model, DPP4 overexpression increased tumour development, whereas treatment with sitagliptin and/or juglone suppressed it. Consistent with these observations, DPP4 levels were positively correlated with PIN1 expression in human breast cancer. CONCLUSIONS AND IMPLICATIONS DPP4 promoted EGF-induced epithelial cell transformation and mammary tumourigenesis via induction of PIN1 expression, suggesting that sitagliptin targeting of DPP4 could be a treatment strategy in patients with breast cancer.
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Kim JY, Ko AR, Hyun HW, Kang TC. ETB receptor-mediated MMP-9 activation induces vasogenic edema via ZO-1 protein degradation following status epilepticus. Neuroscience 2015; 304:355-67. [PMID: 26232046 DOI: 10.1016/j.neuroscience.2015.07.065] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 07/08/2015] [Accepted: 07/24/2015] [Indexed: 01/08/2023]
Abstract
The blood-brain barrier (BBB) is formed by the endothelial cells with specialized tight junctions (TJs) lining the blood vessels and astroglial endfeet surrounding the blood vessels. Although BBB disruption during brain insults leads to vasogenic edema as one of the primary steps in the epileptogenic process, little is known about the molecular and physiological events concerning vasogenic edema formation. In the present study, status epilepticus (SE) changed the expressions and subcellular localizations of TJ proteins (claudin-5, occludin and zonula occludens-1 (ZO-1)) in endothelial cells of the rat piriform cortex. Among TJ proteins, the alteration in ZO-1 expression was relevant to endothelin B (ETB) receptor-mediated endothelial nitric oxide synthase (eNOS) activation, which increased matrix metalloproteinase-9 (MMP-9) activity. Indeed, BQ788 (an ETB receptor antagonist) effectively attenuated SE-induced vasogenic edema by inhibiting eNOS-mediated MMP-9 activation and ZO-1 protein degradation in endothelial cells, although astroglial endfeet were detached from endothelial cells. Therefore, we suggest that SE-induced ETB receptor/eNOS-mediated MMP-9 activation may lead to impairments of endothelial cell function via TJ protein degradation, which are involved in vasogenic edema formation independent of perivascular astroglial functions.
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Goldstein J, Grimes M, Heath GP, Heath HF, Jacob J, Kreczko L, Lucas C, Meng Z, Newbold DM, Paramesvaran S, Poll A, Sakuma T, Seif El Nasr-Storey S, Senkin S, Smith VJ, Belyaev A, Brew C, Brown RM, Cockerill DJA, Coughlan JA, Harder K, Harper S, Olaiya E, Petyt D, Shepherd-Themistocleous CH, Thea A, Tomalin IR, Williams T, Womersley WJ, Worm SD, Baber M, Bainbridge R, Buchmuller O, Burton D, Colling D, Cripps N, Dauncey P, Davies G, Della Negra M, Dunne P, Elwood A, Ferguson W, Fulcher J, Futyan D, Hall G, Iles G, Jarvis M, Karapostoli G, Kenzie M, Lane R, Lucas R, Lyons L, Magnan AM, Malik S, Mathias B, Nash J, Nikitenko A, Pela J, Pesaresi M, Petridis K, Raymond DM, Rogerson S, Rose A, Seez C, Sharp P, Tapper A, Vazquez Acosta M, Virdee T, Zenz SC, Cole JE, Hobson PR, Khan A, Kyberd P, Leggat D, Leslie D, Reid ID, Symonds P, Teodorescu L, Turner M, Dittmann J, Hatakeyama K, Kasmi A, Liu H, Pastika N, Scarborough T, Wu Z, Charaf O, Cooper SI, Henderson C, Rumerio P, Avetisyan A, Bose T, Fantasia C, Lawson P, Richardson C, Rohlf J, St John J, Sulak L, Alimena J, Berry E, Bhattacharya S, Christopher G, Cutts D, Demiragli Z, Dhingra N, Ferapontov A, Garabedian A, Heintz U, Laird E, Landsberg G, Mao Z, Narain M, Sagir S, Sinthuprasith T, Speer T, Swanson J, Breedon R, Breto G, Calderon De La Barca Sanchez M, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Ko W, Lander R, Mulhearn M, Pellett D, Pilot J, Ricci-Tam F, Shalhout S, Smith J, Squires M, Stolp D, Tripathi M, Wilbur S, Yohay R, Cousins R, Everaerts P, Farrell C, Hauser J, Ignatenko M, Rakness G, Takasugi E, Valuev V, Weber M, Burt K, Clare R, Ellison J, Gary JW, Hanson G, Heilman J, Ivova Rikova M, Jandir P, Kennedy E, Lacroix F, Long OR, Luthra A, Malberti M, Olmedo Negrete M, Shrinivas A, Sumowidagdo S, Wimpenny S, Branson JG, Cerati GB, Cittolin S, D'Agnolo RT, Holzner A, Kelley R, Klein D, Letts J, Macneill I, Olivito D, Padhi S, Palmer C, Pieri M, Sani M, Sharma V, Simon S, Tadel M, Tu Y, Vartak A, Welke C, Würthwein F, Yagil A, Zevi Della Porta G, Barge D, Bradmiller-Feld J, Campagnari C, Danielson T, Dishaw A, Dutta V, Flowers K, Franco Sevilla M, Geffert P, George C, Golf F, Gouskos L, Incandela J, Justus C, Mccoll N, Mullin SD, Richman J, Stuart D, To W, West C, Yoo J, Apresyan A, Bornheim A, Bunn J, Chen Y, Duarte J, Mott A, Newman HB, Pena C, Pierini M, Spiropulu M, Vlimant JR, Wilkinson R, Xie S, Zhu RY, Azzolini V, Calamba A, Carlson B, Ferguson T, Iiyama Y, Paulini M, Russ J, Vogel H, Vorobiev I, Cumalat JP, Ford WT, Gaz A, Krohn M, Luiggi Lopez E, Nauenberg U, Smith JG, Stenson K, Wagner SR, Alexander J, Chatterjee A, Chaves J, Chu J, Dittmer S, Eggert N, Mirman N, Nicolas Kaufman G, Patterson JR, Ryd A, Salvati E, Skinnari L, Sun W, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Winstrom L, Wittich P, Winn D, Abdullin S, Albrow M, Anderson J, Apollinari G, Bauerdick LAT, Beretvas A, Berryhill J, Bhat PC, Bolla G, Burkett K, Butler JN, Cheung HWK, Chlebana F, Cihangir S, Elvira VD, Fisk I, Freeman J, Gottschalk E, Gray L, Green D, Grünendahl S, Gutsche O, Hanlon J, Hare D, Harris RM, Hirschauer J, Hooberman B, Jindariani S, Johnson M, Joshi U, Klima B, Kreis B, Kwan S, Linacre J, Lincoln D, Lipton R, Liu T, Lopes De Sá R, Lykken J, Maeshima K, Marraffino JM, Martinez Outschoorn VI, Maruyama S, Mason D, McBride P, Merkel P, Mishra K, Mrenna S, Nahn S, Newman-Holmes C, O'Dell V, Prokofyev O, Sexton-Kennedy E, Soha A, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitbeck A, Whitmore J, Yang F, Acosta D, Avery P, Bortignon P, Bourilkov D, Carver M, Curry D, Das S, De Gruttola M, Di Giovanni GP, Field RD, Fisher M, Furic IK, Hugon J, Konigsberg J, Korytov A, Kypreos T, Low JF, Matchev K, Mei H, Milenovic P, Mitselmakher G, Muniz L, Rinkevicius A, Shchutska L, Snowball M, Sperka D, Yelton J, Zakaria M, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams JR, Adams T, Askew A, Bochenek J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Berry D, Betts RR, Bucinskaite I, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Kurt P, O'Brien C, Sandoval Gonzalez ID, Silkworth C, Turner P, Varelas N, Bilki B, Clarida W, Dilsiz K, Haytmyradov M, Khristenko V, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Ogul H, Onel Y, Ozok F, Penzo A, Rahmat R, Sen S, Tan P, Tiras E, Wetzel J, Yi K, Anderson I, Barnett BA, Blumenfeld B, Bolognesi S, Fehling D, Gritsan AV, Maksimovic P, Martin C, Swartz M, Xiao M, Baringer P, Bean A, Benelli G, Bruner C, Gray J, Kenny RP, Majumder D, Malek M, Murray M, Noonan D, Sanders S, Sekaric J, Stringer R, Wang Q, Wood JS, Chakaberia I, Ivanov A, Kaadze K, Khalil S, Makouski M, Maravin Y, Saini LK, Skhirtladze N, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Anelli C, Baden A, Belloni A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Jabeen S, Kellogg RG, Kolberg T, Lu Y, Mignerey AC, Pedro K, Shin YH, Skuja A, Tonjes MB, Tonwar SC, Apyan A, Barbieri R, Bierwagen K, Busza W, Cali IA, Di Matteo L, Gomez Ceballos G, Goncharov M, Gulhan D, Klute M, Lai YS, Lee YJ, Levin A, Luckey PD, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Sumorok K, Velicanu D, Veverka J, Wyslouch B, Yang M, Zanetti M, Zhukova V, Dahmes B, Gude A, Kao SC, Klapoetke K, Kubota Y, Mans J, Nourbakhsh S, Rusack R, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Oliveros S, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Gonzalez Suarez R, Keller J, Knowlton D, Kravchenko I, Lazo-Flores J, Meier F, Ratnikov F, Snow GR, Zvada M, Dolen J, Godshalk A, Iashvili I, Kharchilava A, Kumar A, Rappoccio S, Alverson G, Barberis E, Baumgartel D, Chasco M, Massironi A, Morse DM, Nash D, Orimoto T, Trocino D, Wang RJ, Wood D, Zhang J, Hahn KA, Kubik A, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Trovato M, Velasco M, Won S, Brinkerhoff A, Chan KM, Drozdetskiy A, Hildreth M, Jessop C, Karmgard DJ, Kellams N, Lannon K, Lynch S, Marinelli N, Musienko Y, Pearson T, Planer M, Ruchti R, Smith G, Valls N, Wayne M, Wolf M, Woodard A, Antonelli L, Brinson J, Bylsma B, Durkin LS, Flowers S, Hart A, Hill C, Hughes R, Kotov K, Ling TY, Luo W, Puigh D, Rodenburg M, Winer BL, Wolfe H, Wulsin HW, Driga O, Elmer P, Hardenbrook J, Hebda P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Saka H, Stickland D, Tully C, Werner JS, Zuranski A, Brownson E, Malik S, Mendez H, Ramirez Vargas JE, Barnes VE, Benedetti D, Bortoletto D, Gutay L, Hu Z, Jha MK, Jones M, Jung K, Kress M, Leonardo N, Miller DH, Neumeister N, Primavera F, Radburn-Smith BC, Shi X, Shipsey I, Silvers D, Svyatkovskiy A, Wang F, Xie W, Xu L, Zablocki J, Parashar N, Stupak J, Adair A, Akgun B, Ecklund KM, Geurts FJM, Li W, Michlin B, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Galanti M, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Hindrichs O, Khukhunaishvili A, Korjenevski S, Petrillo G, Verzetti M, Vishnevskiy D, Ciesielski R, Demortier L, Goulianos K, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Hughes E, Kaplan S, Lath A, Panwalkar S, Park M, Salur S, Schnetzer S, Sheffield D, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Rose K, Spanier S, York A, Bouhali O, Castaneda Hernandez A, Dalchenko M, De Mattia M, Dildick S, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Krutelyov V, Montalvo R, Osipenkov I, Pakhotin Y, Patel R, Perloff A, Roe J, Rose A, Safonov A, Suarez I, Tatarinov A, Ulmer KA, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Faulkner J, Kovitanggoon K, Kunori S, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Mao Y, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Li H, Lin C, Neu C, Wolfe E, Wood J, Clarke C, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Sturdy J, Belknap DA, Carlsmith D, Cepeda M, Dasu S, Dodd L, Duric S, Friis E, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Lanaro A, Lazaridis C, Levine A, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Sarangi T, Savin A, Smith WH, Taylor D, Vuosalo C, Woods N. Evidence for Collective Multiparticle Correlations in p-Pb Collisions. PHYSICAL REVIEW LETTERS 2015; 115:012301. [PMID: 26182092 DOI: 10.1103/physrevlett.115.012301] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Indexed: 06/04/2023]
Abstract
The second-order azimuthal anisotropy Fourier harmonics, v2, are obtained in p-Pb and PbPb collisions over a wide pseudorapidity (η) range based on correlations among six or more charged particles. The p-Pb data, corresponding to an integrated luminosity of 35 nb-1, were collected during the 2013 LHC p-Pb run at a nucleon-nucleon center-of-mass energy of 5.02 TeV by the CMS experiment. A sample of semiperipheral PbPb collision data at √sNN=2.76 TeV, corresponding to an integrated luminosity of 2.5 μb-1 and covering a similar range of particle multiplicities as the p-Pb data, is also analyzed for comparison. The six- and eight-particle cumulant and the Lee-Yang zeros methods are used to extract the v2 coefficients, extending previous studies of two- and four-particle correlations. For both the p-Pb and PbPb systems, the v2 values obtained with correlations among more than four particles are consistent with previously published four-particle results. These data support the interpretation of a collective origin for the previously observed long-range (large Δη) correlations in both systems. The ratios of v2 values corresponding to correlations including different numbers of particles are compared to theoretical predictions that assume a hydrodynamic behavior of a p-Pb system dominated by fluctuations in the positions of participant nucleons. These results provide new insights into the multiparticle dynamics of collision systems with a very small overlapping region.
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Kim JY, Kim JW, Wan W. Design of in-flight fragment separator using high-power primary beams in the energy of a few hundred MeV/u. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:073302. [PMID: 26233367 DOI: 10.1063/1.4923284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An in-flight fragment separator usually requires large acceptance and high momentum resolution to minimize the loss of a rare isotope beam of interest produced at a thin target, which is especially important when (238)U fission reactions in the energy of 200 MeV/u are used. The production target and beam dump are located in the pre-separator, where a beam power of up to 400 kW is dissipated. The area is surrounded by thick radiation shielding walls, which result in long drift spaces between adjacent magnetic components at various locations and an asymmetrical layout. Efforts have been made to minimize non-linear effects in the pre-separator beam optics with trials of different separator configurations and correction schemes using COSY Infinity and GICOSY. The main separator is configured to be mirror symmetric such that correction with hexapole and octupole coils can be more readily applied. The separator configuration was finalized to allow the facility design to proceed and the key components including superconducting magnets have been designed and prototyped. In addition, the separator design has been evaluated using LISE++ including a set of wedge degraders at dispersive focal planes to improve the yield and purity of selected isotope beam.
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Kim JY, Kim SS, Jang HJ, Oh MY, Lee DH, Eom DW, Kang KS, Kim SN, Kwan HC, Ham JY, Kim WJ, Jang DS, Han DJ. 5,7-dihydroxy-3,4,6-trimethoxyflavone attenuates ischemic damage and apoptosis in mouse islets. Transplant Proc 2015; 47:1073-8. [PMID: 26036523 DOI: 10.1016/j.transproceed.2014.12.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 12/30/2014] [Indexed: 11/18/2022]
Abstract
BACKGROUND The transplantation of isolated pancreatic islets is a promising treatment for diabetes. 5,7-dihydroxy-3,4,6-trimethoxyflavone (Eupatilin), a pharmacologically active flavone derived from the Artemisia plant species, has been reported to have antioxidant and anti-inflammatory activities. This study examines the hypothesis that preoperative eupatilin treatment can attenuate ischemic damage and apoptosis before islet transplantation. METHODS Islets isolated from Balb/c mice were randomly divided into 2 groups, and cultured in medium supplemented with or without eupatilin. In vitro islet viability and function were assessed. After treatment with a cytokine cocktail consisting of tumor necrosis factor (TNF)-α, interferon (INF)-γ, and interleukin (IL)-1β, islet cell viability, function, and apoptotic status were determined. The glutathione (GSH) and nitrous oxide (NO) levels were also measured. Proteins related to apoptosis were analyzed using Western blotting. RESULTS There was no difference in cell viability between the 2 groups. Islets cultured in the medium supplemented with eupatilin showed 1.4-fold higher glucose-induced insulin secretion than the islets cultured in the medium without eupatilin. After treatment with a cytokine cocktail, glucose-induced insulin release and the total insulin content of the islets were significantly improved in eupatilin-pretreated islets compared with islets not treated with eupatilin. Apoptosis was significantly decreased, and GSH levels were elevated in the eupatilin-pretreated group. Cytokine-only treated islets produced significantly higher levels of NO, iNOS, and caspase-3 than islets pretreated with eupatilin before cytokine treatment. CONCLUSIONS These results suggest that preoperative eupatilin administration enhances islet function before transplantation and attenuates the cytokine-induced damage associated with NO production and apoptosis.
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Khachatryan V, Sirunyan AM, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Erö J, Friedl M, Frühwirth R, Ghete VM, Hartl C, Hörmann N, Hrubec J, Jeitler M, Kiesenhofer W, Knünz V, Krammer M, Krätschmer I, Liko D, Mikulec I, Rabady D, Rahbaran B, Rohringer H, Schöfbeck R, Strauss J, Treberer-Treberspurg W, Waltenberger W, Wulz CE, Mossolov V, Shumeiko N, Suarez Gonzalez J, Alderweireldt S, Bansal S, Cornelis T, De Wolf EA, Janssen X, Knutsson A, Lauwers J, Luyckx S, Ochesanu S, Rougny R, Van De Klundert M, Van Haevermaet H, Van Mechelen P, Van Remortel N, Van Spilbeeck A, Blekman F, Blyweert S, D'Hondt J, Daci N, Heracleous N, Keaveney J, Lowette S, Maes M, Olbrechts A, Python Q, Strom D, Tavernier S, Van Doninck W, Van Mulders P, Van Onsem GP, Villella I, Caillol C, Clerbaux B, De Lentdecker G, Dobur D, Favart L, Gay APR, Grebenyuk A, Léonard A, Mohammadi A, Perniè L, Randle-Conde A, Reis T, Seva T, Thomas L, Vander Velde C, Vanlaer P, Wang J, Zenoni F, Adler V, Beernaert K, Benucci L, Cimmino A, Costantini S, Crucy S, Fagot A, Garcia G, Mccartin J, Ocampo Rios AA, Poyraz D, Ryckbosch D, Salva Diblen S, Sigamani M, Strobbe N, Thyssen F, Tytgat M, Yazgan E, Zaganidis N, Basegmez S, Beluffi C, Bruno G, Castello R, Caudron A, Ceard L, Da Silveira GG, Delaere C, du Pree T, Favart D, Forthomme L, Giammanco A, Hollar J, Jafari A, Jez P, Komm M, Lemaitre V, Nuttens C, Pagano D, Perrini L, Pin A, Piotrzkowski K, Popov A, Quertenmont L, Selvaggi M, Vidal Marono M, Vizan Garcia JM, Beliy N, Caebergs T, Daubie E, Hammad GH, Aldá Júnior WL, Alves GA, Brito L, Correa Martins Junior M, Dos Reis Martins T, Molina J, Mora Herrera C, Pol ME, Rebello Teles P, Carvalho W, Chinellato J, Custódio A, Da Costa EM, De Jesus Damiao D, De Oliveira Martins C, Fonseca De Souza S, Malbouisson H, Matos Figueiredo D, Mundim L, Nogima H, Prado Da Silva WL, Santaolalla J, Santoro A, Sznajder A, Tonelli Manganote EJ, Vilela Pereira A, Bernardes CA, Dogra S, Tomei TRFP, Gregores EM, Mercadante PG, 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Wendland L, Talvitie J, Tuuva T, Besancon M, Couderc F, Dejardin M, Denegri D, Fabbro B, Faure JL, Favaro C, Ferri F, Ganjour S, Givernaud A, Gras P, Hamel de Monchenault G, Jarry P, Locci E, Malcles J, Rander J, Rosowsky A, Titov M, Baffioni S, Beaudette F, Busson P, Chapon E, Charlot C, Dahms T, Dobrzynski L, Filipovic N, Florent A, Granier de Cassagnac R, Mastrolorenzo L, Miné P, Naranjo IN, Nguyen M, Ochando C, Ortona G, Paganini P, Regnard S, Salerno R, Sauvan JB, Sirois Y, Veelken C, Yilmaz Y, Zabi A, Agram JL, Andrea J, Aubin A, Bloch D, Brom JM, Chabert EC, Collard C, Conte E, Fontaine JC, Gelé D, Goerlach U, Goetzmann C, Le Bihan AC, Skovpen K, Van Hove P, Gadrat S, Beauceron S, Beaupere N, Bernet C, Boudoul G, Bouvier E, Brochet S, Carrillo Montoya CA, Chasserat J, Chierici R, Contardo D, Courbon B, Depasse P, El Mamouni H, Fan J, Fay J, Gascon S, Gouzevitch M, Ille B, Kurca T, Lethuillier M, Mirabito L, Pequegnot AL, Perries S, Ruiz Alvarez JD, Sabes D, Sgandurra L, Sordini 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Butler JN, Cheung HWK, Chlebana F, Cihangir S, Elvira VD, Fisk I, Freeman J, Gottschalk E, Gray L, Green D, Grünendahl S, Gutsche O, Hanlon J, Hare D, Harris RM, Hirschauer J, Hooberman B, Jindariani S, Johnson M, Joshi U, Klima B, Kreis B, Kwan S, Linacre J, Lincoln D, Lipton R, Liu T, Lopes De Sá R, Lykken J, Maeshima K, Marraffino JM, Martinez Outschoorn VI, Maruyama S, Mason D, McBride P, Merkel P, Mishra K, Mrenna S, Nahn S, Newman-Holmes C, O'Dell V, Prokofyev O, Sexton-Kennedy E, Soha A, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitbeck A, Whitmore J, Yang F, Acosta D, Avery P, Bortignon P, Bourilkov D, Carver M, Curry D, Das S, De Gruttola M, Di Giovanni GP, Field RD, Fisher M, Furic IK, Hugon J, Konigsberg J, Korytov A, Kypreos T, Low JF, Matchev K, Mei H, Milenovic P, Mitselmakher G, Muniz L, Rinkevicius A, Shchutska L, Snowball M, Sperka D, Yelton J, Zakaria M, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams JR, Adams T, Askew A, Bochenek J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Berry D, Betts RR, Bucinskaite I, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Kurt P, O'Brien C, Sandoval Gonzalez ID, Silkworth C, Turner P, Varelas N, Bilki B, Clarida W, Dilsiz K, Haytmyradov M, Khristenko V, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Ogul H, Onel Y, Ozok F, Penzo A, Rahmat R, Sen S, Tan P, Tiras E, Wetzel J, Yi K, Anderson I, Barnett BA, Blumenfeld B, Bolognesi S, Fehling D, Gritsan AV, Maksimovic P, Martin C, Swartz M, Xiao M, Baringer P, Bean A, Benelli G, Bruner C, Gray J, Kenny RP, Majumder D, Malek M, Murray M, Noonan D, Sanders S, Sekaric J, Stringer R, Wang Q, Wood JS, Chakaberia I, Ivanov A, Kaadze K, Khalil S, Makouski M, Maravin Y, Saini LK, Skhirtladze N, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Anelli C, Baden A, Belloni A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Jabeen S, Kellogg RG, Kolberg T, Lu Y, Mignerey AC, Pedro K, Shin YH, Skuja A, Tonjes MB, Tonwar SC, Apyan A, Barbieri R, Bierwagen K, Busza W, Cali IA, Di Matteo L, Gomez Ceballos G, Goncharov M, Gulhan D, Klute M, Lai YS, Lee YJ, Levin A, Luckey PD, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Sumorok K, Velicanu D, Veverka J, Wyslouch B, Yang M, Zanetti M, Zhukova V, Dahmes B, Gude A, Kao SC, Klapoetke K, Kubota Y, Mans J, Nourbakhsh S, Rusack R, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Oliveros S, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Gonzalez Suarez R, Keller J, Knowlton D, Kravchenko I, Lazo-Flores J, Meier F, Ratnikov F, Snow GR, Zvada M, Dolen J, Godshalk A, Iashvili I, Kharchilava A, Kumar A, Rappoccio S, Alverson G, Barberis E, Baumgartel D, Chasco M, Massironi A, Morse DM, Nash D, Orimoto T, Trocino D, Wang RJ, Wood D, Zhang J, Hahn KA, Kubik A, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Trovato M, Velasco M, Won S, Brinkerhoff A, Chan KM, Drozdetskiy A, Hildreth M, Jessop C, Karmgard DJ, Kellams N, Lannon K, Lynch S, Marinelli N, Musienko Y, Pearson T, Planer M, Ruchti R, Smith G, Valls N, Wayne M, Wolf M, Woodard A, Antonelli L, Brinson J, Bylsma B, Durkin LS, Flowers S, Hart A, Hill C, Hughes R, Kotov K, Ling TY, Luo W, Puigh D, Rodenburg M, Winer BL, Wolfe H, Wulsin HW, Driga O, Elmer P, Hardenbrook J, Hebda P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Saka H, Stickland D, Tully C, Werner JS, Zuranski A, Brownson E, Malik S, Mendez H, Ramirez Vargas JE, Barnes VE, Benedetti D, Bortoletto D, Gutay L, Hu Z, Jha MK, Jones M, Jung K, Kress M, Leonardo N, Miller DH, Neumeister N, Primavera F, Radburn-Smith BC, Shi X, Shipsey I, Silvers D, Svyatkovskiy A, Wang F, Xie W, Xu L, Zablocki J, Parashar N, Stupak J, Adair A, Akgun B, Ecklund KM, Geurts FJM, Li W, Michlin B, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Galanti M, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Hindrichs O, Khukhunaishvili A, Korjenevski S, Petrillo G, Verzetti M, Vishnevskiy D, Ciesielski R, Demortier L, Goulianos K, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Hughes E, Kaplan S, Lath A, Panwalkar S, Park M, Salur S, Schnetzer S, Sheffield D, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Rose K, Spanier S, York A, Bouhali O, Castaneda Hernandez A, Dalchenko M, De Mattia M, Dildick S, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Krutelyov V, Montalvo R, Osipenkov I, Pakhotin Y, Patel R, Perloff A, Roe J, Rose A, Safonov A, Suarez I, Tatarinov A, Ulmer KA, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Faulkner J, Kovitanggoon K, Kunori S, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Mao Y, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Li H, Lin C, Neu C, Wolfe E, Wood J, Clarke C, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Sturdy J, Belknap DA, Carlsmith D, Cepeda M, Dasu S, Dodd L, Duric S, Friis E, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Lanaro A, Lazaridis C, Levine A, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Sarangi T, Savin A, Smith WH, Taylor D, Vuosalo C, Woods N. Measurement of J/ψ and ψ(2S) Prompt Double-Differential Cross Sections in pp Collisions at sqrt[s]=7 TeV. PHYSICAL REVIEW LETTERS 2015; 114:191802. [PMID: 26024161 DOI: 10.1103/physrevlett.114.191802] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Indexed: 06/04/2023]
Abstract
The double-differential cross sections of promptly produced J/ψ and ψ(2S) mesons are measured in pp collisions at sqrt[s]=7 TeV, as a function of transverse momentum p_{T} and absolute rapidity |y|. The analysis uses J/ψ and ψ(2S) dimuon samples collected by the CMS experiment, corresponding to integrated luminosities of 4.55 and 4.90 fb^{-1}, respectively. The results are based on a two-dimensional analysis of the dimuon invariant mass and decay length, and extend to p_{T}=120 and 100 GeV for the J/ψ and ψ(2S), respectively, when integrated over the interval |y|<1.2. The ratio of the ψ(2S) to J/ψ cross sections is also reported for |y|<1.2, over the range 10<p_{T}<100 GeV. These are the highest p_{T} values for which the cross sections and ratio have been measured.
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Kim JY, Lee CH, Sung MW, Min YG, Chung PS. Experimental study of the pathological changes of rabbit tonsils exposed to anthracite coal briquette gas. Adv Otorhinolaryngol 2015; 47:161-7. [PMID: 1456126 DOI: 10.1159/000421736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Choi K, Abe K, Haga Y, Hayato Y, Iyogi K, Kameda J, Kishimoto Y, Miura M, Moriyama S, Nakahata M, Nakano Y, Nakayama S, Sekiya H, Shiozawa M, Suzuki Y, Takeda A, Tomura T, Wendell RA, Irvine T, Kajita T, Kametani I, Kaneyuki K, Lee KP, Nishimura Y, Okumura K, McLachlan T, Labarga L, Kearns E, Raaf JL, Stone JL, Sulak LR, Berkman S, Tanaka HA, Tobayama S, Goldhaber M, Carminati G, Kropp WR, Mine S, Renshaw A, Smy MB, Sobel HW, Ganezer KS, Hill J, Hong N, Kim JY, Lim IT, Akiri T, Himmel A, Scholberg K, Walter CW, Wongjirad T, Ishizuka T, Tasaka S, Jang JS, Learned JG, Matsuno S, Smith SN, Hasegawa T, Ishida T, Ishii T, Kobayashi T, Nakadaira T, Nakamura K, Oyama Y, Sakashita K, Sekiguchi T, Tsukamoto T, Suzuki AT, Takeuchi Y, Bronner C, Hirota S, Huang K, Ieki K, Ikeda M, Kikawa T, Minamino A, Nakaya T, Suzuki K, Takahashi S, Fukuda Y, Itow Y, Mitsuka G, Mijakowski P, Hignight J, Imber J, Jung CK, Yanagisawa C, Ishino H, Kibayashi A, Koshio Y, Mori T, Sakuda M, Yano T, Kuno Y, Tacik R, Kim SB, Okazawa H, Choi Y, Nishijima K, Koshiba M, Totsuka Y, Yokoyama M, Martens K, Marti L, Vagins MR, Martin JF, de Perio P, Konaka A, Wilking MJ, Chen S, Zhang Y, Wilkes RJ. Search for neutrinos from annihilation of captured low-mass dark matter particles in the sun by super-kamiokande. PHYSICAL REVIEW LETTERS 2015; 114:141301. [PMID: 25910107 DOI: 10.1103/physrevlett.114.141301] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Indexed: 06/04/2023]
Abstract
Super-Kamiokande (SK) can search for weakly interacting massive particles (WIMPs) by detecting neutrinos produced from WIMP annihilations occurring inside the Sun. In this analysis, we include neutrino events with interaction vertices in the detector in addition to upward-going muons produced in the surrounding rock. Compared to the previous result, which used the upward-going muons only, the signal acceptances for light (few-GeV/c^{2}-200-GeV/c^{2}) WIMPs are significantly increased. We fit 3903 days of SK data to search for the contribution of neutrinos from WIMP annihilation in the Sun. We found no significant excess over expected atmospheric-neutrino background and the result is interpreted in terms of upper limits on WIMP-nucleon elastic scattering cross sections under different assumptions about the annihilation channel. We set the current best limits on the spin-dependent WIMP-proton cross section for WIMP masses below 200 GeV/c^{2} (at 10 GeV/c^{2}, 1.49×10^{-39} cm^{2} for χχ→bb[over ¯] and 1.31×10^{-40} cm^{2} for χχ→τ^{+}τ^{-} annihilation channels), also ruling out some fraction of WIMP candidates with spin-independent coupling in the few-GeV/c^{2} mass range.
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