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Targeting c-Myc with a novel Peptide Nuclear Delivery Device
Biologics such as peptides and antibodies are a well-established class of therapeutics. However, their intracellular delivery remains problematic. In particular, methods to efficiently inhibit intra-nuclear targets are lacking. We previously described that Pseudomonas Exotoxin A reaches the nucleopl...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7576588/ https://www.ncbi.nlm.nih.gov/pubmed/33082422 http://dx.doi.org/10.1038/s41598-020-73998-x |
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author | Ting, Trinda Anne Chaumet, Alexandre Bard, Frederic Andre |
author_facet | Ting, Trinda Anne Chaumet, Alexandre Bard, Frederic Andre |
author_sort | Ting, Trinda Anne |
collection | PubMed |
description | Biologics such as peptides and antibodies are a well-established class of therapeutics. However, their intracellular delivery remains problematic. In particular, methods to efficiently inhibit intra-nuclear targets are lacking. We previously described that Pseudomonas Exotoxin A reaches the nucleoplasm via the endosomes-to-nucleus trafficking pathway. Here, we show that a non-toxic truncated form of PE can be coupled to peptides and efficiently reach the nucleoplasm. It can be used as a Peptide Nuclear Delivery Device (PNDD) to deliver polypeptidic cargos as large as Glutathione- S-transferase (GST) to the nucleus. PNDD1 is a fusion of PNDD to the c-myc inhibitor peptide H1. PNDD1 is able to inhibit c-Myc dependent transcription at nanomolar concentration. In contrast, H1 fused to various cell-penetrating peptides are active only in the micromolar range. PNDD1 attenuates cell proliferation and induces cell death in various tumor cell lines. In particular, several patient-derived Diffuse Large B-Cell Lymphomas cell lines die after exposure to PNDD1, while normal B-cells survive. Altogether, our data indicate that PNDD is a powerful tool to bring active cargo to the nucleus and PNDD1 could be the basis of a new therapy against lymphoma. |
format | Online Article Text |
id | pubmed-7576588 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-75765882020-10-21 Targeting c-Myc with a novel Peptide Nuclear Delivery Device Ting, Trinda Anne Chaumet, Alexandre Bard, Frederic Andre Sci Rep Article Biologics such as peptides and antibodies are a well-established class of therapeutics. However, their intracellular delivery remains problematic. In particular, methods to efficiently inhibit intra-nuclear targets are lacking. We previously described that Pseudomonas Exotoxin A reaches the nucleoplasm via the endosomes-to-nucleus trafficking pathway. Here, we show that a non-toxic truncated form of PE can be coupled to peptides and efficiently reach the nucleoplasm. It can be used as a Peptide Nuclear Delivery Device (PNDD) to deliver polypeptidic cargos as large as Glutathione- S-transferase (GST) to the nucleus. PNDD1 is a fusion of PNDD to the c-myc inhibitor peptide H1. PNDD1 is able to inhibit c-Myc dependent transcription at nanomolar concentration. In contrast, H1 fused to various cell-penetrating peptides are active only in the micromolar range. PNDD1 attenuates cell proliferation and induces cell death in various tumor cell lines. In particular, several patient-derived Diffuse Large B-Cell Lymphomas cell lines die after exposure to PNDD1, while normal B-cells survive. Altogether, our data indicate that PNDD is a powerful tool to bring active cargo to the nucleus and PNDD1 could be the basis of a new therapy against lymphoma. Nature Publishing Group UK 2020-10-20 /pmc/articles/PMC7576588/ /pubmed/33082422 http://dx.doi.org/10.1038/s41598-020-73998-x Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Ting, Trinda Anne Chaumet, Alexandre Bard, Frederic Andre Targeting c-Myc with a novel Peptide Nuclear Delivery Device |
title | Targeting c-Myc with a novel Peptide Nuclear Delivery Device |
title_full | Targeting c-Myc with a novel Peptide Nuclear Delivery Device |
title_fullStr | Targeting c-Myc with a novel Peptide Nuclear Delivery Device |
title_full_unstemmed | Targeting c-Myc with a novel Peptide Nuclear Delivery Device |
title_short | Targeting c-Myc with a novel Peptide Nuclear Delivery Device |
title_sort | targeting c-myc with a novel peptide nuclear delivery device |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7576588/ https://www.ncbi.nlm.nih.gov/pubmed/33082422 http://dx.doi.org/10.1038/s41598-020-73998-x |
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