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Chemical Characteristics of Platycodon grandiflorum and its Mechanism in Lung Cancer Treatment.

ABSTRACT: Objective: The technology, network pharmacology and molecular docking technology of the ultra performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (UPLC-Q-TOF-MS/MS) were used to explore the potential molecular mechanism of Platycodon grandiflorum (PG) in the treatment of lung cancer (LC). Methods: UPLC-Q-TOF-MS/MS technology was used to analyze the ingredients of PG and the potential LC targets were obtained from the Traditional Chinese Medicine Systems Pharmacology database, and the Analysis Platform (TCMSP), GeneCards and other databases. The interaction network of the drug-disease targets was constructed with the additional use of STRING 11.0. The pathway enrichment analysis was carried out using Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) in Metascape, and then the "Drug-Ingredients-Targets-Pathways-Disease" (D-I-T-P-D) network was constructed using Cytoscape v3.7.1. Finally, the Discovery Studio 2016 (DS) software was used to evaluate the molecular docking. Results: Forty-seven compounds in PG, including triterpenoid saponins, steroidal saponins and flavonoids, were identified and nine main bioactive components including platycodin D were screened. According to the method of data mining, 545 potential drug targets and 2,664 disease-related targets were collected. The results of topological analysis revealed 20 core targets including caspase 3 (CASP3) and prostaglandin-endoperoxide synthase 2 (PTGS2) suggesting that the potential signaling pathway potentially involved in the treatment of LC included MAPK signaling pathway and P13K-AKT signaling pathway. The results of molecular docking proved that the bound of the ingredients with potential key targets was excellent. Conclusion: The results in this study provided a novel insight in the exploration of the mechanism of action of PG against LC.

SUBMITTER: Deng Y

PROVIDER: S-EPMC7906976 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Chemical Characteristics of Platycodon grandiflorum and its Mechanism in Lung Cancer Treatment.

Deng Yaling Y Ye Xianwen X Chen Yufan Y Ren Hongmin H Xia Lanting L Liu Ying Y Liu Minmin M Liu Haiping H Zhang Huangang H Wang Kairui K Zhang Jinlian J Zhang Zhongwei Z

Frontiers in pharmacology 20210212

Objective: The technology, network pharmacology and molecular docking technology of the ultra performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (UPLC-Q-TOF-MS/MS) were used to explore the potential molecular mechanism of Platycodon grandiflorum (PG) in the treatment of lung cancer (LC). Methods: UPLC-Q-TOF-MS/MS technology was used to analyze the ingredients of PG and the potential LC targets were obtained from the Traditional Chinese Medic ...[more]

PMID: 33643040

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Project description:BackgroundCampanulaceae species are known to have highly rearranged plastid genomes lacking the acetyl-CoA carboxylase (ACC) subunit D gene (accD), and instead have a nuclear (nr)-accD. Plastid genome information has been thought to depend on studies concerning Trachelium caeruleum and genome announcements for Adenophora remotiflora, Campanula takesimana, and Hanabusaya asiatica. RNA editing information for plastid genes is currently unavailable for Campanulaceae. To understand plastid genome evolution in Campanulaceae, we have sequenced and characterized the chloroplast (cp) genome and nr-accD of Platycodon grandiflorum, a basal member of Campanulaceae.ResultsWe sequenced the 171,818 bp cp genome containing a 79,061 bp large single-copy (LSC) region, a 42,433 bp inverted repeat (IR) and a 7840 bp small single-copy (SSC) region, which represents the cp genome with the largest IR among species of Campanulaceae. The genome contains 110 genes and 18 introns, comprising 77 protein-coding genes, four RNA genes, 29 tRNA genes, 17 group II introns, and one group I intron. RNA editing of genes was detected in 18 sites of 14 protein-coding genes. Platycodon has an IR containing a 3' rps12 operon, which occurs in the middle of the LSC region in four other species of Campanulaceae (T. caeruleum, A. remotiflora, C. takesimana, and H. asiatica), but lacks accD, clpP, infA, and rpl23, as has been found in these four species. Platycodon nr-accD contains about 3.2 kb intron between nr-accD.e1 and nr-accD.e2 at the same insertion point as in other Campanulaceae. The phylogenies of the plastid genomes and accD show that Platycodon is basal in the Campanulaceae clade, indicating that IR disruption in Campanulaceae occurred after the loss of accD, clpP, infA, and rpl23 in the cp genome, which occurred during plastid evolution in Campanulaceae.ConclusionsThe plastid genome of P. grandiflorum lacks the rearrangement of the IR found in T. caeruleum, A. remotiflora, C. takesimana, and H. asiatica. The absence of accD, clpP, infA, and rpl23 in the plastid genome is a synapomorphic characteristic of Campanulaceae. The chloroplast genome phylogeny supports the hypothesis that chloroplast genomic arrangement occurred after accD nuclear transfer and loss of the four genes in the plastid of early Campanulaceae as a lineage of asterids.

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Chemical Characteristics of Platycodon grandiflorum and its Mechanism in Lung Cancer Treatment.

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Chemical Characteristics of <i>Platycodon grandiflorum</i> and its Mechanism in Lung Cancer Treatment.

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