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Characteristics of Mouse Lymphoid Cells Proliferating in vitro by Recombinant Human Interleukin 2 (TGP‐3): Comparison between Normal and Nude Mice
Author(s) -
Hinuma Shuji,
Naruo KenIchi,
Shiho Osamu,
Tsukamoto Kyozo
Publication year - 1989
Publication title -
microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0385-5600
DOI - 10.1111/j.1348-0421.1989.tb00962.x
Subject(s) - biology , lymph node , microbiology and biotechnology , spleen , in vitro , interleukin 3 , interleukin 12 , bone marrow , immunology , interleukin 2 , antibody , interleukin 21 , immune system , cytotoxic t cell , t cell , biochemistry
Various lymphoid cells obtained from BALB/c and BALB/c nu/nu mice were cultured in vitro with recombinant human interleukin 2 (rIL 2), and the characteristics of responder cells to rIL 2 were analyzed. Spleen cells, lymph node cells, and thymocytes except for bone marrow cells obtained from BALB/c mice remarkably proliferated in response to rIL 2. On the other hand, among lymphoid cells obtained from BALB/c nu/nu mice, only lymph node cells showed significant proliferation by rIL 2. Flow cytometric analyses revealed that mainly two types of lymphoid cells were proliferating in response to rIL 2 in BALB/c mice, i.e., Thy 1 + , Lyt 1 − , Lyt 2 − and Thy 1 + , Lyt 1 − , Lyt 2 + cells. On the other hand, most of the proliferating cells were Thy 1 + , Lyt 1 − , Lyt 2 − cells in BALB/c nu/nu mice. Treatment with various antibodies plus complement revealed that the majority of IL 2‐responsive cells in BALB/c mice were Thy 1 + , Lyt 1 + , and Lyt 2 + , although a minor part of them were Thy 1 − , Lyt 1 − , and Lyt 2 − . On the other hand, a predominant type of the IL 2‐responsive cells in BALB/c nu/nu mice were Thy 1 − , Lyt 1 − , and Lyt 2 − , though some were Thy 1 + . Nonspecific killer activity against tumor cells increased to variable extents in all of the lymphoid cells of both strains after culture with rIL 2. Our results indicate that mouse responder cells to rIL 2 have the following characteristics. First, the responder cells exist abundantly among spleen, lymph nodes, and thymus in normal mice, though their cell lineages are heterogeneous; one is of T cell lineage and the other of natural killer (NK) cell lineage. Second, nude mice are defective in the responder cells of T cell lineage but not of NK cell lineage. Moreover, the responder cells in nude mice predominantly accumulate in the lymph nodes but not other lymphoid organs.