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Aqueous extract of Protaetia brevitarsis larvae increases mTOR-mediated growth rate in zebrafish larvae

Asian Pacific Journal of Tropical Biomedicine 2023年第8期13卷 339-347页

作者： jayasingha arachchige chathuranga chanaka jayasingha Kyoung Tae Lee Yung Hyun Choi Gi-Young Kim Department of Marine Life Science Jeju National UniversityJeju 63243Republic of Korea Forest Bioresources Department Forest Microbiology DivisionNational Institute of Forest ScienceSuwon 16631Republic of Korea Department of Biochemistry College of Korean MedicineDong-Eui UniversityBusan 47227Republic of Korea

Objective:To evaluate the effects of an aqueous extract of Protaetia brevitarsis(AEPB)on the growth of zebrafish and preosteoblast MC3T3-E1 ***:The effects of AEPB on the linear growth and the expression of growth-related genes in zebrafish and MC3T3-E1 cells were assessed using various molecular ***,the involvement of the mammalian target of rapamycin(mTOR)pathway in AEPB-induced growth was investigated by employing the mTOR inhibitor ***:AEPB administration led to a significant and dose-dependent increase in zebrafish larvae growth over ***,AEPB treatment upregulated the expression of growth hormone-1(GH-1),insulin-like growth factor-1(IGF-1),growth hormone receptor-1(GHR-1),and cholecystokinin-a(CCKA)in ***,AEPB stimulated the expression and release of IGF-1 and accelerated mTOR expression in MC3T3-E1 *** addition,rapamycin hindered AEPB-induced linear growth in zebrafish larvae and suppressed the expression of growth-promoting genes by inhibiting mTOR ***:AEPB shows growth-promoting effects by upregulating growth-related genes and activating the mTOR signaling *** investigations are warranted to elucidate its mechanisms of action and explore its potential application in the development of growth-enhancing supplements for various purposes.

关键词： Protaetia brevitarsis Growth rate Growth hormone Insulin-like growth factor mTOR MC3T3-E1

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Aqueous extract of freeze-dried Protaetia brevitarsis larvae promotes osteogenesis by activating β-catenin signaling

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Asian Pacific Journal of Tropical Biomedicine 2022年第3期12卷 115-123页

作者： jayasingha arachchige chathuranga chanaka jayasingha Kyoung Tae Lee Yung Hyun Choi Chang-Hee Kang Mi-Hwa Lee Gi-Young Kim Department of Marine Life Science Jeju National UniversityJeju 63243Republic of Korea Research Institute for Basic Sciences Jeju National UniversityJeju 63243Republic of Korea Forest Biomaterials Research Center National Institute of Forest ScienceJinju 52817Republic of Korea Department of Biochemistry College of Korean MedicineDong-Eui UniversityBusan 47227Republic of Korea Nakdonggang National Institute of Biological Resources Sangju 37242Republic of Korea

Objective:To investigate the effect of an aqueous extract of Protaetia brevitarsis(AEPB)on osteogenesis using preosteoblast MC3T3-E1 cells and zebrafish ***:Flow cytometric analysis was used to measure the *** phosphatase activity was detetmined using p-nitrophenyl phosphate as a *** deposition was detected using alizarin red staining along with osteogenic marker expression in preosteoblast MC3T3E1 *** addition,vertebral formation in zebrafish larvae was detected using calcein staining and osteogenic gene ***:AEPB highly promoted the expression of osteogenic markers including runt-related transcription factor 2,osterix,and alkaline phosphatase,along with elevated levels of mineralization in MC3T3-E1 ***,AEPB accelerated vertebral formation in zebrafish larvae accompanied by upregulated expression of osteogenic ***535,an inhibitor of Wnt/β-catenin,suppressed AEPB-induced osteogenic gene expression and vertebral formation,indicating that AEPB stimulates osteogenesis by activating the Wnt/β-catenin signaling ***:AEPB stimulates osteoblast differentiation and bone formation by activatingβ-***,AEPB is a promising material that induces osteogenesis,and is useful for the treatment of bone resorption diseases.

关键词： Protaetia brevitarsis Osteoblast differentiation Bone formation β-catenin MC3T3-E1

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