author_facet Wang, B
Benoist, C
Mathis, D
Wang, B
Benoist, C
Mathis, D
author Wang, B
Benoist, C
Mathis, D
spellingShingle Wang, B
Benoist, C
Mathis, D
The Journal of experimental medicine
The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
Immunology
Immunology and Allergy
author_sort wang, b
spelling Wang, B Benoist, C Mathis, D 0022-1007 1540-9538 Rockefeller University Press Immunology Immunology and Allergy http://dx.doi.org/10.1084/jem.183.6.2427 <jats:p>15 [correction of 1,5] deoxyspergualin (DSG) is a potent immunosuppressant whose mechanism of action is still somewhat of a mystery. We have studied the generation of lymphocytes in mice treated with this drug. The differentiation of T cells in the thymus was blocked at an important early control point: the CD4-8- --&amp;gt; CD4+8+ transition, known to depend on the expression of a preTCR complex that includes the variable TCR-beta, but not TCR-alpha, chain. In clear contrast, a later control point, the CD4+8+ --&amp;gt; CD4+8- or CD4-8+ transition, dependent on the display of a conventional alpha:beta TCR complex, appeared unaffected, as did activation of mature T cells both in vitro and in vivo. Interestingly, preB cell differentiation in the bone marrow was blocked at a precisely equivalent point: the A-C --&amp;gt; C' transition, controlled by expression of a pre-receptor complex containing the Ig heavy, but not light, chain. Mature B cells seemed unperturbed. These findings have theoretical implications, suggesting common signaling pathways in early lymphocytes that are distinct from those employed by more mature cells, and are also of practical interest, to be considered in the design of DSG treatment protocols.</jats:p> The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation. The Journal of experimental medicine
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title The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_unstemmed The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_full The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_fullStr The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_full_unstemmed The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_short The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_sort the immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between pret and preb cell differentiation.
topic Immunology
Immunology and Allergy
url http://dx.doi.org/10.1084/jem.183.6.2427
publishDate 1996
physical 2427-2436
description <jats:p>15 [correction of 1,5] deoxyspergualin (DSG) is a potent immunosuppressant whose mechanism of action is still somewhat of a mystery. We have studied the generation of lymphocytes in mice treated with this drug. The differentiation of T cells in the thymus was blocked at an important early control point: the CD4-8- --&amp;gt; CD4+8+ transition, known to depend on the expression of a preTCR complex that includes the variable TCR-beta, but not TCR-alpha, chain. In clear contrast, a later control point, the CD4+8+ --&amp;gt; CD4+8- or CD4-8+ transition, dependent on the display of a conventional alpha:beta TCR complex, appeared unaffected, as did activation of mature T cells both in vitro and in vivo. Interestingly, preB cell differentiation in the bone marrow was blocked at a precisely equivalent point: the A-C --&amp;gt; C' transition, controlled by expression of a pre-receptor complex containing the Ig heavy, but not light, chain. Mature B cells seemed unperturbed. These findings have theoretical implications, suggesting common signaling pathways in early lymphocytes that are distinct from those employed by more mature cells, and are also of practical interest, to be considered in the design of DSG treatment protocols.</jats:p>
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author Wang, B, Benoist, C, Mathis, D
author_facet Wang, B, Benoist, C, Mathis, D, Wang, B, Benoist, C, Mathis, D
author_sort wang, b
container_issue 6
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container_title The Journal of experimental medicine
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description <jats:p>15 [correction of 1,5] deoxyspergualin (DSG) is a potent immunosuppressant whose mechanism of action is still somewhat of a mystery. We have studied the generation of lymphocytes in mice treated with this drug. The differentiation of T cells in the thymus was blocked at an important early control point: the CD4-8- --&amp;gt; CD4+8+ transition, known to depend on the expression of a preTCR complex that includes the variable TCR-beta, but not TCR-alpha, chain. In clear contrast, a later control point, the CD4+8+ --&amp;gt; CD4+8- or CD4-8+ transition, dependent on the display of a conventional alpha:beta TCR complex, appeared unaffected, as did activation of mature T cells both in vitro and in vivo. Interestingly, preB cell differentiation in the bone marrow was blocked at a precisely equivalent point: the A-C --&amp;gt; C' transition, controlled by expression of a pre-receptor complex containing the Ig heavy, but not light, chain. Mature B cells seemed unperturbed. These findings have theoretical implications, suggesting common signaling pathways in early lymphocytes that are distinct from those employed by more mature cells, and are also of practical interest, to be considered in the design of DSG treatment protocols.</jats:p>
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spelling Wang, B Benoist, C Mathis, D 0022-1007 1540-9538 Rockefeller University Press Immunology Immunology and Allergy http://dx.doi.org/10.1084/jem.183.6.2427 <jats:p>15 [correction of 1,5] deoxyspergualin (DSG) is a potent immunosuppressant whose mechanism of action is still somewhat of a mystery. We have studied the generation of lymphocytes in mice treated with this drug. The differentiation of T cells in the thymus was blocked at an important early control point: the CD4-8- --&amp;gt; CD4+8+ transition, known to depend on the expression of a preTCR complex that includes the variable TCR-beta, but not TCR-alpha, chain. In clear contrast, a later control point, the CD4+8+ --&amp;gt; CD4+8- or CD4-8+ transition, dependent on the display of a conventional alpha:beta TCR complex, appeared unaffected, as did activation of mature T cells both in vitro and in vivo. Interestingly, preB cell differentiation in the bone marrow was blocked at a precisely equivalent point: the A-C --&amp;gt; C' transition, controlled by expression of a pre-receptor complex containing the Ig heavy, but not light, chain. Mature B cells seemed unperturbed. These findings have theoretical implications, suggesting common signaling pathways in early lymphocytes that are distinct from those employed by more mature cells, and are also of practical interest, to be considered in the design of DSG treatment protocols.</jats:p> The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation. The Journal of experimental medicine
spellingShingle Wang, B, Benoist, C, Mathis, D, The Journal of experimental medicine, The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation., Immunology, Immunology and Allergy
title The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_full The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_fullStr The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_full_unstemmed The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_short The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
title_sort the immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between pret and preb cell differentiation.
title_unstemmed The immunosuppressant 15-deoxyspergualin [correction of 1,5-deoxyspergualin] reveals commonality between preT and preB cell differentiation.
topic Immunology, Immunology and Allergy
url http://dx.doi.org/10.1084/jem.183.6.2427