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Cordyceps militaris is a commonly used medicinal mushroom containing various therapeutic effects such as anti-inflammatory, anti-allergic, and anti-cancer activities. This study examined whether Cordyceps militaris on germinated soybeans (GSC) has a suppressive effect on a v-ki-ras2 Kirsten rat sarcoma viral oncogene homolog (KRAS)-driven colorectal cancer which is notorious for its un-druggable features and the ineffectiveness of conventional therapies against it. GSC extract was prepared and its proximate composition and amino acids were analyzed. The suppressive effects were investigated with the KRAS-driven colorectal cancer cell-line, SW480. SW480 proliferation, clonogenic potential, apoptosis, and the RAS/extracellular signal-regulated kinase (ERK) pathway under the GSC treatment were analyzed by 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay, flow cytometry, and Western blot, respectively. An in vivo experiment with the SW480 xenograft mouse model was performed. As a result, GSC suppressed cell proliferation by inducing the apoptosis of KRAS-driven colorectal cancer cells and inhibited clonogenic capabilities. The decrease of KRAS and ERK phosphorylation was detected by Western blot. Tumor growth was significantly suppressed when GSC was introduced to the tumor-xenograft mouse model. In conclusion, GSC suppressed KRAS-driven colorectal cancer growth both in vitro and in vivo, and can be used as an alternative or simultaneous approach in colorectal cancer therapy.
Pubmed ID: 30577618
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View all literature mentionsPrivately held company that develops and produces antibodies, ELISA kits, ChIP kits, proteomic kits, and other related reagents used to study cell signaling pathways that impact human health.
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