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Network pharmacology of triptolide in cancer cells : implications for transcription factor binding

Seo, Ean Jeong ; Dawood, Mona ; Hult, Annika K. LU ; Olsson, Martin L. LU orcid and Efferth, Thomas (2021) In Investigational New Drugs 39(6). p.1523-1537
Abstract

Background Triptolide is an active natural product, which inhibits cell proliferation, induces cell apoptosis, suppresses tumor metastasis and improves the effect of other therapeutic treatments in several cancer cell lines by affecting multiple molecules and signaling pathways, such as caspases, heat-shock proteins, DNA damage and NF-ĸB. Purpose We investigated the effect of triptolide towards NF-ĸB and GATA1. Methods We used cell viability assay, compare and cluster analyses of microarray-based mRNA transcriptome-wide expression data, gene promoter binding motif analysis, molecular docking, Ingenuity pathway analysis, NF-ĸB reporter cell assay, and electrophoretic mobility shift assay (EMSA) of GATA1. Results Triptolide inhibited the... (More)

Background Triptolide is an active natural product, which inhibits cell proliferation, induces cell apoptosis, suppresses tumor metastasis and improves the effect of other therapeutic treatments in several cancer cell lines by affecting multiple molecules and signaling pathways, such as caspases, heat-shock proteins, DNA damage and NF-ĸB. Purpose We investigated the effect of triptolide towards NF-ĸB and GATA1. Methods We used cell viability assay, compare and cluster analyses of microarray-based mRNA transcriptome-wide expression data, gene promoter binding motif analysis, molecular docking, Ingenuity pathway analysis, NF-ĸB reporter cell assay, and electrophoretic mobility shift assay (EMSA) of GATA1. Results Triptolide inhibited the growth of drug-sensitive (CCRF-CEM, U87.MG) and drug-resistant cell lines (CEM/ADR5000, U87.MGΔEGFR). Hierarchical cluster analysis showed six major clusters in dendrogram. The sensitive and resistant cell lines were statistically significant (p = 0.65 × 10–2) distributed. The binding motifs of NF-κB (Rel) and of GATA1 proteins were significantly enriched in regions of 25 kb upstream promoter of all genes. IPA showed the networks, biological functions, and canonical pathways influencing the activity of triptolide towards tumor cells. Interestingly, upstream analysis for the 40 genes identified by compare analysis revealed ZFPM1 (friend of GATA protein 1) as top transcription regulator. However, we did not observe any effect of triptolide to the binding of GATA1 in vitro. We confirmed that triptolide inhibited NF-κB activity, and it strongly bound to the pharmacophores of IκB kinase β and NF-κB in silico. Conclusion Triptolide showed promising inhibitory effect toward NF-κB, making it a potential candidate for targeting NF-κB.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Microarrays, Natural products, Network pharmacology, Phytochemicals, Precision medicine
in
Investigational New Drugs
volume
39
issue
6
pages
1523 - 1537
publisher
Springer
external identifiers
  • pmid:34213719
  • scopus:85109296285
ISSN
0167-6997
DOI
10.1007/s10637-021-01137-y
language
English
LU publication?
yes
id
927259d1-af66-49e9-a0f1-a195f7476d98
date added to LUP
2021-08-12 14:31:11
date last changed
2024-06-15 14:07:51
@article{927259d1-af66-49e9-a0f1-a195f7476d98,
  abstract     = {{<p>Background Triptolide is an active natural product, which inhibits cell proliferation, induces cell apoptosis, suppresses tumor metastasis and improves the effect of other therapeutic treatments in several cancer cell lines by affecting multiple molecules and signaling pathways, such as caspases, heat-shock proteins, DNA damage and NF-ĸB. Purpose We investigated the effect of triptolide towards NF-ĸB and GATA1. Methods We used cell viability assay, compare and cluster analyses of microarray-based mRNA transcriptome-wide expression data, gene promoter binding motif analysis, molecular docking, Ingenuity pathway analysis, NF-ĸB reporter cell assay, and electrophoretic mobility shift assay (EMSA) of GATA1. Results Triptolide inhibited the growth of drug-sensitive (CCRF-CEM, U87.MG) and drug-resistant cell lines (CEM/ADR5000, U87.MGΔEGFR). Hierarchical cluster analysis showed six major clusters in dendrogram. The sensitive and resistant cell lines were statistically significant (p = 0.65 × 10<sup>–2</sup>) distributed. The binding motifs of NF-κB (Rel) and of GATA1 proteins were significantly enriched in regions of 25 kb upstream promoter of all genes. IPA showed the networks, biological functions, and canonical pathways influencing the activity of triptolide towards tumor cells. Interestingly, upstream analysis for the 40 genes identified by compare analysis revealed ZFPM1 (friend of GATA protein 1) as top transcription regulator. However, we did not observe any effect of triptolide to the binding of GATA1 in vitro. We confirmed that triptolide inhibited NF-κB activity, and it strongly bound to the pharmacophores of IκB kinase β and NF-κB in silico. Conclusion Triptolide showed promising inhibitory effect toward NF-κB, making it a potential candidate for targeting NF-κB.</p>}},
  author       = {{Seo, Ean Jeong and Dawood, Mona and Hult, Annika K. and Olsson, Martin L. and Efferth, Thomas}},
  issn         = {{0167-6997}},
  keywords     = {{Microarrays; Natural products; Network pharmacology; Phytochemicals; Precision medicine}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{1523--1537}},
  publisher    = {{Springer}},
  series       = {{Investigational New Drugs}},
  title        = {{Network pharmacology of triptolide in cancer cells : implications for transcription factor binding}},
  url          = {{http://dx.doi.org/10.1007/s10637-021-01137-y}},
  doi          = {{10.1007/s10637-021-01137-y}},
  volume       = {{39}},
  year         = {{2021}},
}