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Choi, Nu-Ri,Seo, Dong-Won,Choi, Ki-Myung,Ko, Na-Young,Kim, Ji-Ho,Kim, Hyun-Il,Jung, Woo-Young,Lee, Jun-Heon Asian Australasian Association of Animal Productio 2016 Animal Bioscience Vol.29 No.3
The porcine major histocompatibility complex (MHC) is called swine leukocyte antigen (SLA), which controls immune responses and transplantation reactions. The SLA is mapped on pig chromosome 7 (SSC7) near the centromere. In this study, 3 class I (SLA-1, SLA-3, and SLA-2) and 3 class II (DRB1, DQB1, and DQA) genes were used for investigation of SLA haplotypes in Yucatan miniature pigs in Korea. This pig breed is a well-known model organism for biomedical research worldwide. The current study indicated that Korean Yucatan pig population had 3 Class I haplotypes (Lr-4.0, Lr-6.0, and Lr-25.0) and 3 class II haplotypes (Lr-0.5, Lr-0.7, and Lr-0.25). The combinations of SLA class I and II haplotype together, 2 homozygous (Lr-4.5/4.5 and Lr-6.7/6.7) and 3 heterozygous (Lr-4.5/6.7, Lr-4.5/25.25, and Lr-6.7/25.25) haplotypes were identified, including previously unidentified new heterozygous haplotypes (Lr-4.5/4.7). In addition, a new SLA allele typing method using Agilent 2100 bioanalyzer was developed that permitted more rapid identification of SLA haplotypes. These results will facilitate the breeding of SLA homozygous Yucatan pigs and will expedite the possible use of these pigs for the biomedical research, especially xenotransplantation research.
Choi, Nu-Ri,Lee, Hyun-Ju,Jung, Sung-Hoon,Hong, Cheol Yi,Vo, Manh-Cuong,Hoang, My-Dung,Kim, Hyeoung-Joon,Lee, Je-Jung Elsevier 2015 cytotherapy Vol.17 No.10
<P>Background aims. It is important to improve the migratory ability of dendritic cells (DCs) and to increase DC potency for successful DC-based cancer immunotherapy. The intracellular Ca2+ signaling pathway has an important role on the regulation of DC migration. Our preliminary studies revealed that sarco/endoplasmic reticulum Ca2+ transport ATPase 2 (SERCA2) expression was inversely related to DC migratory capacity, and the expression level of p-cofilin and SERCA2 on mature DCs showed a counter-trend. Methods. We selected the appropriate six maturation cocktails on the basis of the expression levels of SERCA2 and p-cofilin and investigated the functional characteristics and migratory capacity of mature DCs. Among the these six maturation cocktails, DCIFN-gamma/IL-I beta/Poly-I:C showed potent type 1 immune response with interleukin (IL)-12p70 production and strong Th1-polarization, and this DC elicited strong antigen-specific cytotoxic Tlymphocyte responses. Results. Interestingly, DCIFN-gamma/IL-I beta/Poly-I:C showed lower expression of SERCA2 and higher expression of p-cofilin compared with those matured with the use of other cocktails. In vitro migration assay showed that DCs matured with the use of this maturation cocktail had significantly increased migratory ability compared with alpha DC1s and other DCs. Conclusions. Interferon-gamma, IL-1 beta and Poly-I:C maturation cocktail may be used in the field of cancer immunotherapy to generate potent immune-stimulatory DCs with improved type 1 immune response and migration capacity.</P>
( Nu Ri Choi ),( Dong Won Seo ),( Slim Ben Jemaa ),( Hasina Sultana ),( Kang Nyeong Heo ),( Cheorun Jo ),( Jun Heon Lee ) 한국동물자원과학회(구 한국축산학회) 2015 한국축산학회지 Vol.57 No.5
Background: Korean native chicken (KNC) is a well-known breed due to its superior meat taste. This breed, however, owing to a low growth rate, has a high market price. In order to overcome this disadvantage, the National Institute of Animal Science (NIAS) in Korea developed a commercial KNC breed, named Woorimatdag version 2 (WM2), an upgraded version of the Woorimatdag (WM1) breed and the WM2 was created by crossing the KNC with meat type breeds. This study aims to discriminate between WM2 and other chicken breeds using microsatellite (MS) markers. Methods: A total of 302 individuals from eight Korean chicken populations were examined. The genetic diversity and population structure analysis were investigated using Cervus, API-CALC, STRUCTURE, PowerMarker programs. Results: Based on heterozygosity and polymorphic information content (PIC) values, 30 MS markers were initially selected from 150 markers. The identified average number of alleles (Na), expected heterozygosity, and PIC values for the WM2 samples were 7.17, 0.741, and 0.682, respectively. Additionally, the paternity of individuals was assigned with a success rate of greater than 99% using 12 markers, the best minimum number of markers. The 12 selected markers contained heterozygosity and PIC values above 0.7 and probability of identity values around zero. Using these markers, the determined probability of identity (PI), PIhalf-sibs, and PIsibs values were 3.23E-33, 5.03E-22, and 8.61E-08, respectively. Conclusions: WM2 is well differentiated with respect to other chicken breeds based on estimated genetic distances. The results presented here will contribute to the identification of commercial WM2 chicken in the market.
ISAG-recommended Microsatellite Marker Analysis Among Five Korean Native Chicken Lines
Nu Ri Choi,Md Rashedul Hoque,Dong Won Seo,Hasina Sultana,Hee Bok Park,Hyun Tae Lim,Kang Nyeong Heo,Bo Seok Kang,Cheorun Jo,Jun Heon Lee 한국동물자원과학회 2012 한국축산학회지 Vol.54 No.6
The objective of this study was to determine genetic variation of five Korean native chicken lines using 30 microsatellite(MS) markers, which were previously recommended by ISAG(International Society for Animal Genetics). The initial study indicated that two microsatellite markers, MCW0284 and LEI0192, were not amplified in these lines and excluded for further analysis. Twenty eight microsatellite markers were investigated in 83 birds from five Korean native chicken lines. The identified mean number of alleles was 4.57. Also, the expected, observed heterozygosity(He, Ho) and polymorphism information content(PIC) values were estimated in these markers and they ranged from 0.31~0.868, 0.145~0.699, and 0.268~0.847, respectively. The results were used for the discrimination of five chicken lines using genetic distance values and also neighbor-joining phylogenetic tree was constructed. Based on the He and PIC values, eighteen markers are enough for the discrimination of these Korean native chicken lines for the expected probability of identity values among genotypes of random individuals(PI), random half sibs(PIhalf-sibs) and random sibs(PIsibs). Taken together, these results will help the decision of conservation strategies and establishment of traceability system in this native chicken breed. Also, the use of ISAG-recommended microsatellite markers may indicate that the global comparison with other chicken breeds is possible.
Discrimination of the commercial Korean native chicken population using microsatellite markers
Choi, Nu Ri,Seo, Dong Won,Jemaa, Slim Ben,Sultana, Hasina,Heo, Kang Nyeong,Jo, Cheorun,Lee, Jun Heon Korean Society of Animal Science and Technology 2015 한국축산학회지 Vol.57 No.2
Background: Korean native chicken (KNC) is a well-known breed due to its superior meat taste. This breed, however, owing to a low growth rate, has a high market price. In order to overcome this disadvantage, the National Institute of Animal Science (NIAS) in Korea developed a commercial KNC breed, named Woorimatdag version 2 (WM2), an upgraded version of the Woorimatdag (WM1) breed and the WM2 was created by crossing the KNC with meat type breeds. This study aims to discriminate between WM2 and other chicken breeds using microsatellite (MS) markers. Methods: A total of 302 individuals from eight Korean chicken populations were examined. The genetic diversity and population structure analysis were investigated using Cervus, API-CALC, STRUCTURE, PowerMarker programs. Results: Based on heterozygosity and polymorphic information content (PIC) values, 30 MS markers were initially selected from 150 markers. The identified average number of alleles (Na), expected heterozygosity, and PIC values for the WM2 samples were 7.17, 0.741, and 0.682, respectively. Additionally, the paternity of individuals was assigned with a success rate of greater than 99% using 12 markers, the best minimum number of markers. The 12 selected markers contained heterozygosity and PIC values above 0.7 and probability of identity values around zero. Using these markers, the determined probability of identity (PI), $PI_{half-sibs}$, and $PI_{sibs}$ values were 3.23E-33, 5.03E-22, and 8.61E-08, respectively. Conclusions: WM2 is well differentiated with respect to other chicken breeds based on estimated genetic distances. The results presented here will contribute to the identification of commercial WM2 chicken in the market.
하우스 인삼재배에서 상토의 조성이 유기농 2년근 인삼의 생육 및 수량에 미치는 영향
이누리(Nu-Ri Lee),김정선(Jung-Sun Kim),조서리(Seo-Ri Jo),최영규(Yeong-Kyu Choi),최재을(Jae-Eul Choi) 충남대학교 농업과학연구소 2012 농업과학연구 Vol.39 No.1
This research was conducted to investigate the influence of organic bed soil substrates on growth and yield of organically grown ginseng transplantation in a shaded plastic houses. The pH and EC of the substrates used for this study were 5.93-6.78 and 0.03-0.15 dS/m, respectively. The concentrations of NH₄-N and NO₃-N were 14.01-68.63 ㎎/L, 5.60-58.83 ㎎/L respectively. and the average quantum in the shaded plastic houses was 11-15% of natural light. The maximum temperature in the shaded plastic houses is higher (3-7℃) than that of outside open field from the last part of April to early in August. Emergence date of ginseng was on March 21 in the mongolian type shaded plastic house, and was on March 29 in normal type shaded plastic house. Both roots and shoot growth of ginseng were excellent in the bed soils with PPV-2, compared with other compounds used. We concluded that the PPV-2 could be promising a good bed soil substrate for organic ginseng cultivation in shaded plastic house.
초등 과학과 환경 수업에 활용 가능한 안드로이드 기반 "ECO" 어플리케이션의 개발과 적용
최누리 ( Nu Ri Choi ),박재근 ( Jae Keun Park ) 한국생물교육학회 2015 생물교육 Vol.43 No.4
The sixth grade is the stage to which basic concepts of environment including ecosystem are introduced intensively in the environmental education of elementary school. Thus, various instrumental methods to develop the understanding for constitution and interaction of ecosystem, decision making, problem-solving and sustainable development are in demand. This research intended to design and implement a smart educational application which can be utilized in teaching the unit of ‘living things and environment’. The main categories of contents constituting this application are ecosystem, environmental pollution, energy and green development. And detailed subcategories were suggested for each category. The activities to implement in the application are further or complementary study on the concepts, quizzes, project research and presenting recommended books. As the results of applying this application, it has promoted the level of motivation for the classes utilizing smart device and the understanding of the content elements in the unit of ‘living things and environment’. It is expected that the utilization of this application allows teachers to provide various contents including articles, pictures and videos under the smart learning condition, to directly share the main concepts and questions with students, and to promote elementary school students’ motivation for learning and their interests in environment by two-way communica-tions