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Jeon, Yoon Kyung,Kim, Chung Kwon,Hwang, Kyung Rim,Park, Hye-Young,Koh, Jaemoon,Chung, Doo Hyun,Lee, Chang-Woo,Ha, Geun-Hyoung Nature Publishing Group 2017 Cell death and differentiation Vol.24 No.3
<P>Pellino-1 is an E3 ubiquitin ligase acting as a critical mediator for a variety of immune receptor signaling pathways, including Toll-like receptors, interleukin-1 receptor and T-cell receptors. We recently showed that the Pellino-1-transgenic (Tg) mice developed multiple tumors with different subtypes in hematolymphoid and solid organs. However, the molecular mechanism underlying the oncogenic role of Pellino-1 in solid tumors remains unknown. Pellino-1-Tg mice developed adenocarcinoma in the lungs, and Pellino-1 expression was higher in human lung adenocarcinoma cell lines compared with non-neoplastic bronchial epithelial cell lines. Pellino-1 overexpression increased the cell proliferation, survival, colony formation, invasion and migration of lung adenocarcinoma cells, whereas Pellino-1 knock-down showed the opposite effect. Pellino-1 overexpression activated PI3K/Akt and ERK signaling pathways and elicited an epithelial–mesenchymal transition (EMT) phenotype of lung adenocarcinoma cells. Pellino-1-mediated EMT was demonstrated through morphology, the upregulation of Vimentin, Slug and Snail expression and the downregulation of E-cadherin and <I>β</I>-catenin expression. Notably, Pellino-1 had a direct effect on the overexpression of Snail and Slug through Lys63-mediated polyubiquitination and the subsequent stabilization of these proteins. Pellino-1 expression level was significantly correlated with Snail and Slug expression in human lung adenocarcinoma tissues, and lung tumors from Pellino-1-Tg mice showed Snail and Slug overexpression. The Pellino-1-mediated increase in the migration of lung adenocarcinoma cells was mediated by Snail and Slug expression. Taken together, these results show that Pellino-1 contributes to lung tumorigenesis by inducing overexpression of Snail and Slug and promoting EMT. Pellino-1 might be a potential therapeutic target for lung cancer.</P>
Hyo-Rim Lee,Sung-Chan Lee,Dong Ha Lee,Won-Sil Choi,Chan-Sik Jung,Jae-Ho Jeon,Jeong-Eun Kim,Il-Kwon Park 한국응용곤충학회 2017 한국응용곤충학회 학술대회논문집 Vol.2017 No.10
In this study, we isolated and identified an aggregation-sex pheromone from Monochamus saltuarius, the major insectvector of the pine wood nematode in Korea. Adult male of M. saltuarius produces 2-undecyloxy-1-ethanol, which is knownto be an aggregation-sex pheromone in other Monochamus species. We performed field experiments to determine the attractivenessof the pheromone and other synergists. More M. saltuarius adult beetles were attracted to traps baited with the pheromonethan to unbaited traps. Ethanol and (-)-α-pinene interacted synergistically with the pheromone. Traps baited with pheromone+(-)-α-pinene+ethanol were more attractive to M. saltuarius adults than traps baited with pheromone, (-)-α-pinene, or ethanol alone.Ipsenol, ipsdienol, and limonene were also identified as synergists of the aggregation-sex pheromone for M. saltuarius adults.
Current Status of Human Taeniasis in Lao People’s Democratic Republic
Hyeong-Kyu Jeon,Tai-Soon Yong,Woon-Mok Sohn,Jong-Yil Chai,Duk-Young Min,Cheong-Ha Yun,Han-Jong Rim,Tiengkham Pongvongsa,Virasack Banouvong,Bounnaloth Insisiengmay,Bounlay Phommasack,Keeseon S. Eom 대한기생충학열대의학회 2013 The Korean Journal of Parasitology Vol.51 No.2
Human taeniasis was investigated in Lao People’s Democratic Republic (Lao PDR) between 2000 and 2011 as part of the nation’s helminthiasis survey. A total of 55,038 inhabitants, including 29,846 school children, were examined using the Kato-Katz and scotch-tape anal swab method, and morphological observation of adult worms. Molecular identification of Taenia tapeworms was performed by multiplex PCR or DNA sequence analysis of the mitochondrial cox1 gene. Taenia eggs were present at a rate of 1.5% (845/55,038) in the subject population. Adult tapeworms were identified as T. solium or T. saginata by analyzing the collectable stool specimens (n=126). Three specimens identified as T. solium were found in Luang Prabang, while the remaining 123 specimens, which were T. saginata, were found in Bokeo, Bolikhamxay, Champasak, Houaphan, Khammouane, Luang Namta, Luang Prabang, Oudomxay, Phongsaly, Saysomboune, Saravane, Savannakhet, Xayaboury, Xekong, Xieng Khouang Province, and Vientiane Municipality.