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Ipecac root extracts and isolated circular peptides differentially suppress inflammatory immune response characterised by proliferation, activation and degranulation capacity of human lymphocytes in vitro
Circular peptides are attractive lead compounds for drug development; this study investigates the immunomodulatory effects of defined root powder extracts and isolated peptides (called cyclotides) from Carapichea ipecacuanha (Brot.) L. Andersson (‘ipecac’). Changes in the viability, proliferation an...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7614192/ https://www.ncbi.nlm.nih.gov/pubmed/35653889 http://dx.doi.org/10.1016/j.biopha.2022.113120 |
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author | Falanga, Chiara Madlen Steinborn, Carmen Muratspahić, Edin Zimmermann-Klemd, Amy Marisa Winker, Moritz Krenn, Liselotte Huber, Roman Gruber, Christian W. Gründemann, Carsten |
author_facet | Falanga, Chiara Madlen Steinborn, Carmen Muratspahić, Edin Zimmermann-Klemd, Amy Marisa Winker, Moritz Krenn, Liselotte Huber, Roman Gruber, Christian W. Gründemann, Carsten |
author_sort | Falanga, Chiara Madlen |
collection | PubMed |
description | Circular peptides are attractive lead compounds for drug development; this study investigates the immunomodulatory effects of defined root powder extracts and isolated peptides (called cyclotides) from Carapichea ipecacuanha (Brot.) L. Andersson (‘ipecac’). Changes in the viability, proliferation and function of activated human primary T cells were analysed using flow cytometry-based assays. Three distinct peptide-enriched extracts of pulverised ipecac root material were prepared via C(18) solid-phase extraction and analysed by reversed-phase HPLC and mass spectrometry. These extracts induced caspase 3/7 dependent apoptosis, thus leading to a suppressed proliferation of activated T cells and a reduction of the number of cells in the G2 phase. Furthermore, the stimulated T cells had a lower activation potential and a reduced degranulation capacity after treatment with ipecac extracts. Six different cyclotides were isolated from C. ipecacuanha and an T cell proliferation inhibiting effect was determined. Furthermore, the degranulation capacity of the T cells was diminished specifically by some cyclotides. In contrast to kalata B1 and its analog T20K, secretion of IL-2 and IFN- γ was not affected by any of the caripe cyclotides. The findings add to our increased understanding of the immunomodulating effects of cyclotides, and may provide a basis for the use of ipecac extracts for immunomodulation in conditions associated with an exessive immune responses. |
format | Online Article Text |
id | pubmed-7614192 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
record_format | MEDLINE/PubMed |
spelling | pubmed-76141922023-02-17 Ipecac root extracts and isolated circular peptides differentially suppress inflammatory immune response characterised by proliferation, activation and degranulation capacity of human lymphocytes in vitro Falanga, Chiara Madlen Steinborn, Carmen Muratspahić, Edin Zimmermann-Klemd, Amy Marisa Winker, Moritz Krenn, Liselotte Huber, Roman Gruber, Christian W. Gründemann, Carsten Biomed Pharmacother Article Circular peptides are attractive lead compounds for drug development; this study investigates the immunomodulatory effects of defined root powder extracts and isolated peptides (called cyclotides) from Carapichea ipecacuanha (Brot.) L. Andersson (‘ipecac’). Changes in the viability, proliferation and function of activated human primary T cells were analysed using flow cytometry-based assays. Three distinct peptide-enriched extracts of pulverised ipecac root material were prepared via C(18) solid-phase extraction and analysed by reversed-phase HPLC and mass spectrometry. These extracts induced caspase 3/7 dependent apoptosis, thus leading to a suppressed proliferation of activated T cells and a reduction of the number of cells in the G2 phase. Furthermore, the stimulated T cells had a lower activation potential and a reduced degranulation capacity after treatment with ipecac extracts. Six different cyclotides were isolated from C. ipecacuanha and an T cell proliferation inhibiting effect was determined. Furthermore, the degranulation capacity of the T cells was diminished specifically by some cyclotides. In contrast to kalata B1 and its analog T20K, secretion of IL-2 and IFN- γ was not affected by any of the caripe cyclotides. The findings add to our increased understanding of the immunomodulating effects of cyclotides, and may provide a basis for the use of ipecac extracts for immunomodulation in conditions associated with an exessive immune responses. 2022-08-01 2022-05-30 /pmc/articles/PMC7614192/ /pubmed/35653889 http://dx.doi.org/10.1016/j.biopha.2022.113120 Text en https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Falanga, Chiara Madlen Steinborn, Carmen Muratspahić, Edin Zimmermann-Klemd, Amy Marisa Winker, Moritz Krenn, Liselotte Huber, Roman Gruber, Christian W. Gründemann, Carsten Ipecac root extracts and isolated circular peptides differentially suppress inflammatory immune response characterised by proliferation, activation and degranulation capacity of human lymphocytes in vitro |
title | Ipecac root extracts and isolated circular peptides differentially suppress inflammatory immune response characterised by proliferation, activation and degranulation capacity of human lymphocytes in vitro |
title_full | Ipecac root extracts and isolated circular peptides differentially suppress inflammatory immune response characterised by proliferation, activation and degranulation capacity of human lymphocytes in vitro |
title_fullStr | Ipecac root extracts and isolated circular peptides differentially suppress inflammatory immune response characterised by proliferation, activation and degranulation capacity of human lymphocytes in vitro |
title_full_unstemmed | Ipecac root extracts and isolated circular peptides differentially suppress inflammatory immune response characterised by proliferation, activation and degranulation capacity of human lymphocytes in vitro |
title_short | Ipecac root extracts and isolated circular peptides differentially suppress inflammatory immune response characterised by proliferation, activation and degranulation capacity of human lymphocytes in vitro |
title_sort | ipecac root extracts and isolated circular peptides differentially suppress inflammatory immune response characterised by proliferation, activation and degranulation capacity of human lymphocytes in vitro |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7614192/ https://www.ncbi.nlm.nih.gov/pubmed/35653889 http://dx.doi.org/10.1016/j.biopha.2022.113120 |
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