A novel culture system for induction of T cell development: modification of fetal thymus organ culture.
We have previously found that the development of T cells predominantly of the T cell receptor alpha beta T cell lineage, which is comparable to that in the organ culture (OC) of fetal thymus at the air-medium border (AMB), could be induced in submersion OC of murine fetal thymus if the cultivation was performed in an environment containing O2 at 60-80%. This culture method is named high oxygen submersion (HOS)-OC. In the present work, we established a culture system where T cell development can be induced from thymic as well as fetal liver progenitors by cocultivating them in a 96-well U-bottom plate with a deoxyguanosine (dGuo)-treated fetal thymus lobe under HOS conditions. Differentiation and growth of T cells in this culture system were comparable to those seen in the previously devised micro i.t. system, where progenitor cells were injected with a microinjector into dGuo-treated lobes and were cultured under AMB conditions. A similar level of T cell development was induced by cocultivating such progenitors with small fragments of thymus lobes under HOS conditions. Moreover, it was possible to induce T cell development by culturing fetal thymus cells with thymic stromal cells prepared by treating dGuo-treated lobes with trypsin plus EDTA in a V-bottom plate under HOS conditions.
Department of Immunology, Kyoto University, Japan.
Y M
YM
Dou
Y
Y
Watanabe
Y
Y
Aiba
K
K
Wada
Y
Y
Katsura
D000818:Animals; D002454:Cell Differentiation; D002455:Cell Division; D018920:Coculture Techniques; D003470:Culture Media; D046508:Culture Techniques / Q000379:methods*; D005260:Female; D005333:Fetus; D005434:Flow Cytometry; D007700:Kinetics; D051379:Mice; D008810:Mice, Inbred C57BL; D009924:Organ Culture Techniques / Q000379:methods; D011247:Pregnancy; D013601:T-Lymphocytes / Q000166:cytology* / Q000276:immunology*; D013950:Thymus Gland / Q000166:cytology* / Q000196:embryology / Q000276:immunology; D013997:Time Factors
D003470:Culture Media