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Journal of Ethnopharmacology 2020-May

Scutellaria barbata and Hedyotis diffusa herb pair for breast cancer treatment: Potential mechanism based on network pharmacology.

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Odkaz sa uloží do schránky
Ting-Ting
Gan-Lin Zhang
Cun-Fang Dai
Bo-Ran Zhang
Ke-Xin Cao
Chun-Guo Wang
Guo-Wang Yang
Xiao-Min Wang

Kľúčové slová

Abstrakt

The Scutellaria barbata and Hedyotis diffusa (SH) herb pair is extensively used in Traditional Chinese Medicine for both efficacy enhancement and toxicity reduction, of TCM widely using for efficacy enhancing and toxicity reducing in breast cancer treatment in China and Asian countries. Superior clinical efficacy observations based on high dosages (≥60 g) motivated us to explore appropriate dosages and the underlying mechanisms of action.To explore the efficacy and potential mechanisms of actions of SH through in vitro and in vivo experiments and network pharmacology.SH lyophilized powder (SHLP) was prepared from decoctions and the active ingredients were identified using high performance liquid chromatography (HPLC). Proliferation and migration experiments in vitro and tumor growth in vivo were performed to evaluate the effects of SHLP on breast cancer. Corresponding potential target genes for SHLP components and breast cancer were extracted from established databases and the Protein-Protein Internetwork of shared genes were constructed using STRING database. Kyoto Encyclopedia of Genes and Genomes (KEGG) functional annotation clusters were acquired and the top 30 pathways were presented. At last, as one of pathways indicated by enriched results, apoptosis was validated with flow cytometric analysis and caspase-3, 8, 9 activities.Seventy-five ingredients were identified from SHLP by HPLC. High SHLP doses inhibited proliferation and migration of three types of breast cancer cells in vitro and tumor growth in nude mice. After target genes extraction and intersection, the top 30 KEGG clusters were enriched, including VEGF, Micro-RNAs and cell cycle, besides, key genes in apoptosis were mapped. In the last, apoptosis was validated with flow cytometric analysis and caspase-3, 8, 9 activities after SHLP treatment.High SHLP dosages inhibited breast cancer in vitro and in vivo, enriched by network pharmacology and confirmed by flow cytometric analysis and caspase activation, with apoptosis identified as one of the mechanisms of action of SHLP. SHLP administration with higher doses is recommended for clinical usage.

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