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Single-Cell Analysis Reveals Isotype-Specific Autoreactive B Cell Repertoires in Sjögren’s Syndrome

Author(s)
Nguyen, Cuong Q.; Ogunniyi, Adebola Oluwakayode; Karabiyik, Afife; Love, John C
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Abstract
Microengraving is a novel technology that uses an array of microfabricated subnanoliter wells to isolate and characterize secreted proteins from larger number of single cells. This printing technique permits the capture and characterization of secreted antibodies on glass slides. Here, we profiled the antigenic repertoires of B cells reacting against salivary gland tissues in Sjögren’s syndrome (SjS), an autoimmune disease targeting the exocrine glands. Single-cell suspensions of spleen and cervical lymph node cells prepared from normal C57BL/6 and SjS-susceptible (SjSs) C57BL/6.NOD-AecAec2 mice were dispersed into subnanoliter wells (nanowells). Capture slides preincubated with mouse immunoglobulins were used for printing. Detection antibodies included fluorescence conjugated anti-IgG1, salivary gland lysates of C57BL/6 and SjSs mice. Results indicate an increase in the frequency of IgG1-secreting cells in the spleen of SjSs mice compared to C57BL/6 mice. Cells from the lymph node of SjSs mice yield higher instances of IgG1 reactive against salivary gland antigens than cells from the lymph nodes of C57BL/6 mice. These data demonstrate the isotype-specific reactivity of antibodies during the autoimmune process, and further reveals significant differences in the non-autoimmune and autoimmune antibody repertoires. These results support the generation of self-reactive B cell repertoires during the autoimmune process, at the same time, verifying that microengraving of single cells might allow for identification of novel biomarkers in SjS.
Date issued
2013-03
URI
http://hdl.handle.net/1721.1/79395
Department
Massachusetts Institute of Technology. Department of Chemical Engineering; Koch Institute for Integrative Cancer Research at MIT
Journal
PLoS ONE
Publisher
Public Library of Science
Citation
Nguyen, Cuong Q., Adebola O. Ogunniyi, Afife Karabiyik, and J. Christopher Love. Single-Cell Analysis Reveals Isotype-Specific Autoreactive B Cell Repertoires in Sjögren’s Syndrome. Edited by John A. Chiorini. PLoS ONE 8, no. 3 (March 13, 2013): e58127.
Version: Final published version
ISSN
1932-6203

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