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Emerging Co-signaling Networks in T Cell Immune Regulation
정근옥,최인학 대한면역학회 2013 Immune Network Vol.13 No.5
Co-signaling molecules are surface glycoproteins that positively or negatively regulate the T cell response to antigen. Co-signaling ligands and receptors crosstalk between the surfaces of antigen-presenting cells (APCs) and T cells, and modulate the ultimate magnitude and quality of T cell receptor (TCR) signaling. In the past 10 years, the field of co-signaling research has been advanced by the understanding of underlying mechanisms of the immune modulation led by newly identified co-signaling molecules and the successful preclinical and clinical trials targeting co-inhibitory molecules called immune checkpoints in the treatment of autoimmune diseases and cancers. In this review, we briefly describe the characteristics of well-known B7 co-signaling family members regarding the expression, functions and therapeutic implications and to introduce newly identified B7 members such as B7-H5, B7-H6, and B7-H7.
사과의 樹齡·地域 및 部位에 따른 Peroxidase 同位酵素의 變動과 品種間 및 그 交雜苗間의 差異
鄭根玉,金暎來 충남대학교 농업과학연구소 1989 농업과학연구 Vol.16 No.1
Studies were carried out to compare from the viewpoint of peroxidase isoenzyme patterns by ages, locations and organs. In addition, the relationships among six cultivars peroxidase isoenzyme patterns were compared and the relationships between cultivars and their hybrids were examined. The results are summarized as follows. 1. The zymogram was not affected by the ages of 'Fuji' cultivar. 2. There was no locational difference in zymogram among Suwon, Taejon and Yesan in 'Fuji' and 'Tsugaru' cultivars. 3. Significant difference in isozyme patterns was found between stems and leaves in 'Fuji' and 'Tsugaru' cultivars. 4. There were some differences in zymogram among 'Ralls Genet', 'Fuji', 'Jonathan', 'Starking', 'Golden Delicous' and 'Tsugaru' cultivars. 5. Classification was made by the peroxidase isozyme development between cultivars and their hybrids. 1) The type showed both parent's isozyme pattern. 2) The type showed a loss of a part of parent's isozyme bands. 3) The type developed new isozymes which were not detected in parent plants.