Fin cell line from isogeneic ginbuna crucian carp
Fin cell line from isogeneic ginbuna crucian carp
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同基因银鲫鱼鳍细胞系
DOI:
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发表时间:
1997
期刊:
影响因子:
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通讯作者:
Y. Ikeda
中科院分区:
文献类型:
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作者:
S. Hasegawa;C. Nakayasu;N. Okamoto;T. Nakanishi;Y. Ikeda
Dear Editor: For the study of T cell-mediated immunity, inbred animals and/or cell lines derived from them are essential because antigen recognition by T lymphocytes is genetically restricted by the major histocompatibility complex (MHC). In fish, however, cell lines from inbred fishes are rare. We tried to establish a cell line from inbred fish and have succeeded in passaging and maintaining a cell line of isogeneic ginbuna erucian earp Carass ius aura tus langsdorf l i through the 83rd passage. Isogeneic ginbuna crucian carp is a naturally oecun'ing gynogenetic fish and several clones that are allogeneie to one another have been established. These clonal fishes have been used to investigate adoptive transfer of immunity (Nakanishi, 1987a, 1987b) and graft rejection (Nakanishi, 1987e). These reports have shown that inbred ginbuna crueian carp, like inbred mice, are sufficiently isogeneic for immunological studies. MHC sequences in teleosts have been reported (Hashimoto et al., 1990; Dixon et al., 1995), and specific cellular eytotoxieity against (2,4,6-trinitrophenyl) TNP-modified autologous cells has also been found in carp (Verlhac et al., 1990). Therefore, cell lines from elonal fish are useful for studying cellmediated eytotoxicity (e.g., eytotoxic T cells (CTL) or natural killer (NK) cells. Female and yearling isogeneie ginbuna erueian carp, Carass ius aura tu s langsdorf i i , which originated from Lake Suwa, were obtained from the National Research Institute of Aquaculture. Caudal fins were cut fi'om the fish, bathed in 1% sodium hypochlorite solution for 1 min, and then rinsed in 70% ethyl alcohol for a few seconds. The fins were cut into approximately 1-mm cubes with sterile scissors, and the cubes were transferred to 25 cm 2 euhure flasks (Corning Labs, Inc., Coming Labs, Inc., Coming, NY), and allowed to do~ for 2 h so that they would stick to the inside surface of the flasks. Culture medium (MEM-IO) was prepared from Eagle's minimum essential medium (MEM; Nissui Pharmaceutical Co., Tokyo, Japan) supplemented with 10% fetal bovine serum (FBS; Commonweahh Serum Laboratories, Melbourne, Victoria, Australia), 4.5 mM sodium bicarbonate (NaHC03), 4 mM L-glutamine, and 14 mM N-[2-hydroxyethyl]piperazine-N'-[2-ethanesulfonic acid] (HEPES; Sigma Chemical Co., St. Louis, MO). Flasks containing the fin cubes were incubated at 20 ° C with MEM-10 and the cells were subcultured at confluency using a dispersant of 0.1% trypsin (DIFCO Laboratories, Detroit, MI) in phosphate-buffered saline (PBS) containing 0.02% ethylenediaminetetraacetic acid disodium salt (EDTA). These cells were designated CFS (Carassius fin from Lake Suwa) cells. CFS cells that had been passaged 52 times were used to determine the optimal growth temperature. Aliquots of 1 ml (5.0 X 1@ eells/ml) were plated into 3 wells of 12-well culture plates (Coming Labs). After 7 d of incubation at 4, 10, 15, 20, 25, 30, and 37 ° C, the supernatant of each well was removed and cells were dispersed with the dispersant and centrifuged at 800 × g for 5 min at 4 ° C to FIG. l. A confluent monolayer of fibroblastlike cells fi'om fins of an isogeneic ginbuna crucian carp fi'om Lake Suwa. This cell line was designated CFS. Bar 100 ~am.