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Database screening of herbal monomers regulating autophagy by constructing a "disease-gene-drug" network.


ABSTRACT: BACKGROUND: Studies suggest an important role of autophagy as a target for cancer therapy. We constructed a "disease-gene-drug" network using the modular approach of bioinformatics and screened herbal monomers demonstrating functions related to autophagy regulation. METHODS: Based on the microarray results of the gene expression omnibus (GEO) database (GSE2435 and GSE31040, starvation-induced autophagy model), we used the human protein reference database (HPRD) to obtain the protein-protein interaction (PPI) network. In addition, we used the CFinder software to identify several functional modules, performed gene ontology-biological process (GO-BP) functional enrichment analysis using the DAVID software, constructed a herbal monomer-module gene regulatory network using literature search and the Cytoscape software, and then analyzed the relationships between autophagy, genes, and herbal monomers. RESULTS: We screened 544 differentially expressed genes related to autophagy, 375 pairs of differentially expressed genes, and 7 gene modules, wherein the functions of module 3 (composed of 7 genes) were enriched in "cell death". Using the constructed herbal monomer-module gene regulatory network, we found that 30 herbal monomers can simultaneously regulate these 7 genes, indicating a potential regulatory role in autophagy. CONCLUSIONS: Database screening using the disease-gene-drug network can provide new strategies and ideas for the application of herbal medicines in cancer therapy.

SUBMITTER: Hao C 

PROVIDER: S-EPMC4295301 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Database screening of herbal monomers regulating autophagy by constructing a "disease-gene-drug" network.

Hao Chenjun C   Yang Zhengpeng Z   Gao Bo B   Lu Ming M   Meng Xianzhi X   Qiao Xin X   Xue Dongbo D   Zhang Weihui W  

BMC complementary and alternative medicine 20141204


<h4>Background</h4>Studies suggest an important role of autophagy as a target for cancer therapy. We constructed a "disease-gene-drug" network using the modular approach of bioinformatics and screened herbal monomers demonstrating functions related to autophagy regulation.<h4>Methods</h4>Based on the microarray results of the gene expression omnibus (GEO) database (GSE2435 and GSE31040, starvation-induced autophagy model), we used the human protein reference database (HPRD) to obtain the protein  ...[more]

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