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Interleukin-1$\beta$ 및 Interleukin-1 Receptor Antagonist의 유전적 다형성과 한국인 위암과의 연관 관계
박직영,조용구,김창재,박용규,김영실,박조현,이석형,유남진,이정용,박원상,Park Jik Young,Cho Young Gu,Kim Chang Jae,Park Yong Kyu,Kim Young Sil,Park Cho Hyun,Lee Sug Hyung,Yoo Nam Jin,Lee Jung Young,Park Won Sang 대한위암학회 2002 대한위암학회지 Vol.2 No.3
Purpose: Interleukin 1$\beta$ (IL-1$\beta$) polymorphisms are associated with hypochlorhydria, atrophic gastritis, and increased risk of gastric cancer in Caucasians. We tried to determine whether the IL-1.. and IL-1 receptor antagonist (IL-1 RN) genetic polymorphisms contribute to the development of gastric cancer and the specific type of gastritis in Korean. Materials and Methods: The study population was comprised of 128 gastric cancer patients with histologically proven carcinoma and 63 normal healthy individuals. Sixty-eight carcinomas were of intestinal-type and sixty tumors were of diffuse-type. No patient had a familial gastric cancer history. The 511 bp and 31 bp polymorphisms in the IL-1.. were genotyped by polymerase chain reaction (PCR)-restriction fragment length polymorphism. The polymorphism of the IL-1 RN was analyzed with variable number tandem repeat after PCR. Results: The genotype of 511C/-31T of IL-1$\beta$ and allele 1 of IL-1 RN was dominant in the present subjects. The allelic frequencies of the C allele IL-1$\beta$, which is a high risk genotype for gastric cancer, were 0.551 and 0.429 in gastric cancer and normal controls, respectively. Statistically, significant difference in allelic frequencies of three polymorphic sites between gastric cancer patients and normal controls, and between intestinal-type and diffuse-type was not observed. Conclusions: These results suggest that the polymorphisms of IL-1$\beta$ and IL-1 RN may not contribute to the development of Korean gastric caner and that other endogenous or exogenous factors will be important for gastric carcinogenesis.
김창재,박직영,이종흔,조용구,이종우,송영화,김영실,박조현,남석우,이석형,유남진,박원상,이정용,Kim, Chang-Jae,Park, Jik-Young,Lee, Jong-Heun,Cho, Young-Gu,Lee, Jong-Woo,Song, Young-Hwa,Kim, Young-Sil,Park, Cho, Hyun,Nam, Suk-Woo,Lee, Sug-Hyung 대한위암학회 2003 대한위암학회지 Vol.3 No.1
Purpose: Caspase 2, a member of the family of ICE-like proteases, is activated by the Fas pathway and induces apoptosis by triggering the caspase cascade. The purpose of this study was to determine whether the expression pattern of caspase 2 might be associated with gastric cancer development and if so, to determine to which pathologic parameter it is linked. Materials and Methods: For the construction of the gastric cancer tissue microarray, 78 paraffin-embedded tissues containing gastric cancer areas were cored 3 times and transferred to the recipient master block. The expression pattern of caspase 2 was examined on tissue microarray slides by using immunohistochemistry and was compared with pathologic parameters, including histologic type, depth of invasion, lymph node metastasis, and peritoneal dissemination. Results: Caspase 2 was expressed on superficial and foveolar epithelial cells and lymphocytes in the gastric mucosa, mainly in cytoplasm. We found loss of caspase 2 expression in 41 ($52.6\%$) of the 78 gastric cancer tissues. Statistically, histologic type and other pathologic parameters were not related with loss of caspase 2 expression Conclusion: Our findings provide enough evidence that loss of caspase 2 expression may contribute to the development of Korean gastric cancer and that it might be one of the possible escape mechanisms from apoptosis in gastric cancer.
박재영(Jae Yeong PARK),정직영(Jik Young JUNG),손민호(Min Ho SON),박정임(Jung Im PARK) 한국생태공학회 2011 한국생태공학회지 Vol.2 No.1
As a basic study on the creation of artificial salt marshes using dredged coastal sediments, the pilot-scale Salicornia herbacea bed was constructed on the reclaimed dredging area in Busan New Port. One hundred of Salicornia herbacea seeds were sown in each plot (1m x 1m) and 20 plots were constructed im March 2010. We investigated the germination, morphology, biomass, leaf chlorophyll and CN content of newly developed Salicornia herbacea monthly from March to November 2010. Germination rate was 7% in 2 months after sowing, but 6% of Salicornia herbacea was established. Shoot length and biomass increased rapidly during summer. Maximum shoot length and biomass were 60.7 cm and 249.4 g FW sht⁻¹, respectively. Leaf chlorophyll content was higher in young shoots. The nitrogen content of the root tissue decreased during summer. The artificially developed Salicornia herbacea bed appeared to grow well on the reclaimed dredging area in Busan New Port.