Isolation of nanobodies against Xenopus embryonic antigens using immune and non-immune phage display libraries.

The use of Xenopus laevis as a model for vertebrate developmental biology is limited by a lack of antibodies specific for embryonic antigens. This study evaluated the use of immune and non-immune phage display libraries for the isolation of single domain antibodies, or nanobodies, with specificities...

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Main Authors: Keiji Itoh, Alice H Reis, Andrew Hayhurst, Sergei Y Sokol
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0216083
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author Keiji Itoh
Alice H Reis
Andrew Hayhurst
Sergei Y Sokol
author_facet Keiji Itoh
Alice H Reis
Andrew Hayhurst
Sergei Y Sokol
author_sort Keiji Itoh
collection DOAJ
description The use of Xenopus laevis as a model for vertebrate developmental biology is limited by a lack of antibodies specific for embryonic antigens. This study evaluated the use of immune and non-immune phage display libraries for the isolation of single domain antibodies, or nanobodies, with specificities for Xenopus embryonic antigens. The immune nanobody library was derived from peripheral blood lymphocyte RNA obtained from a llama immunized with Xenopus gastrula homogenates. Screening this library by immunostaining of embryonic tissues with pooled periplasmic material and sib-selection led to the isolation of several monoclonal phages reactive with the cytoplasm and nuclei of gastrula cells. One antigen recognized by a group of nanobodies was identified using a reverse proteomics approach as nucleoplasmin, an abundant histone chaperone. As an alternative strategy, a semi-synthetic non-immune llama nanobody phage display library was panned on highly purified Xenopus proteins. This proof-of-principle approach isolated monoclonal nanobodies that specifically bind Nuclear distribution element-like 1 (Ndel1) in multiple immunoassays. Our results suggest that immune and non-immune phage display screens on crude and purified embryonic antigens can efficiently identify nanobodies useful to the Xenopus developmental biology community.
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spelling doaj.art-07473f47543c4fd19b2c99767c96ade12022-12-21T17:16:42ZengPublic Library of Science (PLoS)PLoS ONE1932-62032019-01-01145e021608310.1371/journal.pone.0216083Isolation of nanobodies against Xenopus embryonic antigens using immune and non-immune phage display libraries.Keiji ItohAlice H ReisAndrew HayhurstSergei Y SokolThe use of Xenopus laevis as a model for vertebrate developmental biology is limited by a lack of antibodies specific for embryonic antigens. This study evaluated the use of immune and non-immune phage display libraries for the isolation of single domain antibodies, or nanobodies, with specificities for Xenopus embryonic antigens. The immune nanobody library was derived from peripheral blood lymphocyte RNA obtained from a llama immunized with Xenopus gastrula homogenates. Screening this library by immunostaining of embryonic tissues with pooled periplasmic material and sib-selection led to the isolation of several monoclonal phages reactive with the cytoplasm and nuclei of gastrula cells. One antigen recognized by a group of nanobodies was identified using a reverse proteomics approach as nucleoplasmin, an abundant histone chaperone. As an alternative strategy, a semi-synthetic non-immune llama nanobody phage display library was panned on highly purified Xenopus proteins. This proof-of-principle approach isolated monoclonal nanobodies that specifically bind Nuclear distribution element-like 1 (Ndel1) in multiple immunoassays. Our results suggest that immune and non-immune phage display screens on crude and purified embryonic antigens can efficiently identify nanobodies useful to the Xenopus developmental biology community.https://doi.org/10.1371/journal.pone.0216083
spellingShingle Keiji Itoh
Alice H Reis
Andrew Hayhurst
Sergei Y Sokol
Isolation of nanobodies against Xenopus embryonic antigens using immune and non-immune phage display libraries.
PLoS ONE
title Isolation of nanobodies against Xenopus embryonic antigens using immune and non-immune phage display libraries.
title_full Isolation of nanobodies against Xenopus embryonic antigens using immune and non-immune phage display libraries.
title_fullStr Isolation of nanobodies against Xenopus embryonic antigens using immune and non-immune phage display libraries.
title_full_unstemmed Isolation of nanobodies against Xenopus embryonic antigens using immune and non-immune phage display libraries.
title_short Isolation of nanobodies against Xenopus embryonic antigens using immune and non-immune phage display libraries.
title_sort isolation of nanobodies against xenopus embryonic antigens using immune and non immune phage display libraries
url https://doi.org/10.1371/journal.pone.0216083
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AT andrewhayhurst isolationofnanobodiesagainstxenopusembryonicantigensusingimmuneandnonimmunephagedisplaylibraries
AT sergeiysokol isolationofnanobodiesagainstxenopusembryonicantigensusingimmuneandnonimmunephagedisplaylibraries