AustralieFrV1, Istex, Corpus, bibRecord, 001611

Five novel antigens illustrate shared phenotype between mouse thymic stromal cells, thymocytes, and peripheral lymphocytes

Identifieur interne : 001611 ( Istex/Corpus ); précédent : 001610; suivant : 001612

Five novel antigens illustrate shared phenotype between mouse thymic stromal cells, thymocytes, and peripheral lymphocytes

Auteurs : Carolyn L. Tucek ; Dale I. Godfrey ; Richard L. Boyd

Source :

International Immunology [ 0953-8178 ] ; 1992-09.

RBID : ISTEX:754AEC3B066B684BD71FC5AB9BBAE57F002534A4

Abstract

Previously, we characterized by immunohistology a group of rat anti-mouse thymic stromal mAbs (MTS 12, 32, 33, 35, and 37), which recognized novel plasma membrane determinants on both thymic stromal cells (TSCs) and thymocytes. The present study investigates in more detail this incidence of shared phenotype by an extensive flow cytometric analysis of MTS mAb reactivity on TSCs, thymocyte subsets, peripheral lymphocytes, and bone marrow cells. Examination of freshly isolated or cultured heterogeneous TSCs and TSC clones confirmed that the mAb identified plasma membrane molecules on distinct subsets of these cells. All but MTS 12 reacted with epithelial cells. Triple-labelling illustrated that MTS 32, 33, and 37 were also reactive with more than 90% of total thymocytes, but varied in their distribution on the four major CD4 and CD8 defined subsets. MTS 12, staining with thymic vascular endothelium by immunohistology, labelled more than 95% of each subset. MTS 35 reactivity in each subset correlated strongly with only the immature populations. Examination of peripheral lymphocytes by triple- and double-labelling unexpectedly showed that MTS 33, 35, and 37 did not recognize peripheral T cells but labelled all B cells. MTS 32 was negative for B cells, but positive for all CD8+ T cells, yet only a subset of CD4+ T cells. Further, MTS 33, 35, and 37 were present on a significant percentage of bone marrow cells. MTS 12 reacted with virtually all peripheral T and B cells, and about 50% bone marrow leukocytes. Collectively these results reveal the same novel epitopes on different thymic cell types and subsets thereof, highlighting specific similarities between cells of apparently diverse lineages. These findings may be of importance in the delineation of intercellular communications within the thymus and emphasize the integrated nature of the microenvironment in this organ.

Url:

https://api.istex.fr/document/754AEC3B066B684BD71FC5AB9BBAE57F002534A4/fulltext/pdf

DOI: 10.1093/intimm/4.9.1021

Links to Exploration step

ISTEX:754AEC3B066B684BD71FC5AB9BBAE57F002534A4

Le document en format XML

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<front><div type="abstract">Previously, we characterized by immunohistology a group of rat anti-mouse thymic stromal mAbs (MTS 12, 32, 33, 35, and 37), which recognized novel plasma membrane determinants on both thymic stromal cells (TSCs) and thymocytes. The present study investigates in more detail this incidence of shared phenotype by an extensive flow cytometric analysis of MTS mAb reactivity on TSCs, thymocyte subsets, peripheral lymphocytes, and bone marrow cells. Examination of freshly isolated or cultured heterogeneous TSCs and TSC clones confirmed that the mAb identified plasma membrane molecules on distinct subsets of these cells. All but MTS 12 reacted with epithelial cells. Triple-labelling illustrated that MTS 32, 33, and 37 were also reactive with more than 90% of total thymocytes, but varied in their distribution on the four major CD4 and CD8 defined subsets. MTS 12, staining with thymic vascular endothelium by immunohistology, labelled more than 95% of each subset. MTS 35 reactivity in each subset correlated strongly with only the immature populations. Examination of peripheral lymphocytes by triple- and double-labelling unexpectedly showed that MTS 33, 35, and 37 did not recognize peripheral T cells but labelled all B cells. MTS 32 was negative for B cells, but positive for all CD8+ T cells, yet only a subset of CD4+ T cells. Further, MTS 33, 35, and 37 were present on a significant percentage of bone marrow cells. MTS 12 reacted with virtually all peripheral T and B cells, and about 50% bone marrow leukocytes. Collectively these results reveal the same novel epitopes on different thymic cell types and subsets thereof, highlighting specific similarities between cells of apparently diverse lineages. These findings may be of importance in the delineation of intercellular communications within the thymus and emphasize the integrated nature of the microenvironment in this organ.</div>
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<abstract><p>Previously, we characterized by immunohistology a group of rat anti-mouse thymic stromal mAbs (MTS 12, 32, 33, 35, and 37), which recognized novel plasma membrane determinants on both thymic stromal cells (TSCs) and thymocytes. The present study investigates in more detail this incidence of shared phenotype by an extensive flow cytometric analysis of MTS mAb reactivity on TSCs, thymocyte subsets, peripheral lymphocytes, and bone marrow cells. Examination of freshly isolated or cultured heterogeneous TSCs and TSC clones confirmed that the mAb identified plasma membrane molecules on distinct subsets of these cells. All but MTS 12 reacted with epithelial cells. Triple-labelling illustrated that MTS 32, 33, and 37 were also reactive with more than 90% of total thymocytes, but varied in their distribution on the four major CD4 and CD8 defined subsets. MTS 12, staining with thymic vascular endothelium by immunohistology, labelled more than 95% of each subset. MTS 35 reactivity in each subset correlated strongly with only the immature populations. Examination of peripheral lymphocytes by triple- and double-labelling unexpectedly showed that MTS 33, 35, and 37 did not recognize peripheral T cells but labelled all B cells. MTS 32 was negative for B cells, but positive for all CD8+ T cells, yet only a subset of CD4+ T cells. Further, MTS 33, 35, and 37 were present on a significant percentage of bone marrow cells. MTS 12 reacted with virtually all peripheral T and B cells, and about 50% bone marrow leukocytes. Collectively these results reveal the same novel epitopes on different thymic cell types and subsets thereof, highlighting specific similarities between cells of apparently diverse lineages. These findings may be of importance in the delineation of intercellular communications within the thymus and emphasize the integrated nature of the microenvironment in this organ.</p>
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<name><surname>Tucek</surname>
<given-names>Carolyn L.</given-names>
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<name><surname>Godfrey</surname>
<given-names>Dale I.</given-names>
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<name><surname>Boyd</surname>
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<corresp id="cor1"><sup>1</sup>
Current address: INSERM U345-CHU Necker, 156 rue de Vaugirard, 75015 Paris, France</corresp>

<corresp id="cor2"><sup>2</sup>
Department of Immunology, DNAX Reasearch Institute Of Molecular and Celluar Biology, Palo Alto, CA 94304, USA</corresp>

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<p>Previously, we characterized by immunohistology a group of rat anti-mouse thymic stromal mAbs (MTS 12, 32, 33, 35, and 37), which recognized novel plasma membrane determinants on both thymic stromal cells (TSCs) and thymocytes. The present study investigates in more detail this incidence of shared phenotype by an extensive flow cytometric analysis of MTS mAb reactivity on TSCs, thymocyte subsets, peripheral lymphocytes, and bone marrow cells. Examination of freshly isolated or cultured heterogeneous TSCs and TSC clones confirmed that the mAb identified plasma membrane molecules on distinct subsets of these cells. All but MTS 12 reacted with epithelial cells. Triple-labelling illustrated that MTS 32, 33, and 37 were also reactive with more than 90% of total thymocytes, but varied in their distribution on the four major CD4 and CD8 defined subsets. MTS 12, staining with thymic vascular endothelium by immunohistology, labelled more than 95% of each subset. MTS 35 reactivity in each subset correlated strongly with only the immature populations. Examination of peripheral lymphocytes by triple- and double-labelling unexpectedly showed that MTS 33, 35, and 37 did not recognize peripheral T cells but labelled all B cells. MTS 32 was negative for B cells, but positive for all CD8<sup>+</sup>
 T cells, yet only a subset of CD4<sup>+</sup>
 T cells. Further, MTS 33, 35, and 37 were present on a significant percentage of bone marrow cells. MTS 12 reacted with virtually all peripheral T and B cells, and about 50% bone marrow leukocytes. Collectively these results reveal the same novel epitopes on different thymic cell types and subsets thereof, highlighting specific similarities between cells of apparently diverse lineages. These findings may be of importance in the delineation of intercellular communications within the thymus and emphasize the integrated nature of the microenvironment in this organ.</p>

</abstract>

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<kwd>cellular interactions</kwd>

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<mods version="3.6"><titleInfo><title>Five novel antigens illustrate shared phenotype between mouse thymic stromal cells, thymocytes, and peripheral lymphocytes</title>
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<titleInfo type="alternative" contentType="CDATA"><title>Five novel antigens illustrate shared phenotype between mouse thymic stromal cells, thymocytes, and peripheral lymphocytes</title>
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<name type="personal"><namePart type="given">Carolyn L.</namePart>
<namePart type="family">Tucek</namePart>
<affiliation>Department of Pathology and Immunology, Monash Medical School, Commercial Road, Prahran, 3181 Victoria, Australia</affiliation>
<affiliation>1Current address: INSERM U345-CHU Necker, 156 rue de Vaugirard, 75015 Paris, France</affiliation>
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<name type="personal"><namePart type="given">Dale I.</namePart>
<namePart type="family">Godfrey</namePart>
<affiliation>Department of Pathology and Immunology, Monash Medical School, Commercial Road, Prahran, 3181 Victoria, Australia</affiliation>
<affiliation>2Department of Immunology, DNAX Reasearch Institute Of Molecular and Celluar Biology, Palo Alto, CA 94304, USA</affiliation>
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<name type="personal"><namePart type="given">Richard L.</namePart>
<namePart type="family">Boyd</namePart>
<affiliation>Department of Pathology and Immunology, Monash Medical School, Commercial Road, Prahran, 3181 Victoria, Australia</affiliation>
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<dateIssued encoding="w3cdtf">1992-09</dateIssued>
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<abstract>Previously, we characterized by immunohistology a group of rat anti-mouse thymic stromal mAbs (MTS 12, 32, 33, 35, and 37), which recognized novel plasma membrane determinants on both thymic stromal cells (TSCs) and thymocytes. The present study investigates in more detail this incidence of shared phenotype by an extensive flow cytometric analysis of MTS mAb reactivity on TSCs, thymocyte subsets, peripheral lymphocytes, and bone marrow cells. Examination of freshly isolated or cultured heterogeneous TSCs and TSC clones confirmed that the mAb identified plasma membrane molecules on distinct subsets of these cells. All but MTS 12 reacted with epithelial cells. Triple-labelling illustrated that MTS 32, 33, and 37 were also reactive with more than 90% of total thymocytes, but varied in their distribution on the four major CD4 and CD8 defined subsets. MTS 12, staining with thymic vascular endothelium by immunohistology, labelled more than 95% of each subset. MTS 35 reactivity in each subset correlated strongly with only the immature populations. Examination of peripheral lymphocytes by triple- and double-labelling unexpectedly showed that MTS 33, 35, and 37 did not recognize peripheral T cells but labelled all B cells. MTS 32 was negative for B cells, but positive for all CD8+ T cells, yet only a subset of CD4+ T cells. Further, MTS 33, 35, and 37 were present on a significant percentage of bone marrow cells. MTS 12 reacted with virtually all peripheral T and B cells, and about 50% bone marrow leukocytes. Collectively these results reveal the same novel epitopes on different thymic cell types and subsets thereof, highlighting specific similarities between cells of apparently diverse lineages. These findings may be of importance in the delineation of intercellular communications within the thymus and emphasize the integrated nature of the microenvironment in this organ.</abstract>
<note type="author-notes">1Current address: INSERM U345-CHU Necker, 156 rue de Vaugirard, 75015 Paris, France</note>
<subject><genre>keywords</genre>
<topic>cell lineages</topic>
<topic>cellular interactions</topic>
<topic>lymphoid cells</topic>
<topic>stroma</topic>
<topic>thymus</topic>
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<relatedItem type="host"><titleInfo><title>International Immunology</title>
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<part><date>1992</date>
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<identifier type="DOI">10.1093/intimm/4.9.1021</identifier>
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Five novel antigens illustrate shared phenotype between mouse thymic stromal cells, thymocytes, and peripheral lymphocytes

Five novel antigens illustrate shared phenotype between mouse thymic stromal cells, thymocytes, and peripheral lymphocytes

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