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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. 相似文献
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Sinan Balci Mustafa Karabiyik Askin Kocabas Coskun Kocabas Atilla Aydinli 《Plasmonics (Norwell, Mass.)》2010,5(4):429-436
Surface plasmon polariton (SPP) waveguides formed by coupled plasmonic cavities on metallic Moire surfaces have been investigated
both experimentally and numerically. The Moire surface, fabricated by interference lithography, contains periodic arrays of
one-dimensional cavities. The coupling strength between the cavities has been controlled by changing the periodicities of
the Moire surface. The ability to control the coupling strength allows us to tune the dispersion and the group velocity of
the plasmonic coupled cavity mode. Reflection measurements and numerical simulation of the array of SPP cavities have shown
a coupled resonator type plasmonic waveguide band formation within the band gap. Coupling coefficients of cavities and group
velocities of SPPs are calculated for a range of cavity sizes from weakly coupled regime to strongly coupled regime. 相似文献
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Ozlem Yedier-Bayram Bengul Gokbayrak Alisan Kayabolen Ali Cenk Aksu Ayse Derya Cavga Ahmet Cingz Ezgi Yagmur Kala Goktug Karabiyik Rauf Günsay Beril Esin Tunc Morova Frat Uyulur Hamzah Syed Martin Philpott Adam P. Cribbs Sonia H. Y. Kung Nathan A. Lack Tamer T. Onder Tugba Bagci-Onder 《Cell death & disease》2022,13(8)
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