Bone protective effects of the polysaccharides from Grifola frondosa on ovariectomy-induced osteoporosis in mice via inhibiting PINK1/Parkin signaling, oxidative stress and inflammation

Qinghua Liu; Qianqian Yao; Changqin Li; Hui Yang; Yanbo Liang; Heqi Yang; Meng Meng; Qiang Xiao; Jian Qin

doi:10.1016/j.ijbiomac.2024.132370

Bone protective effects of the polysaccharides from Grifola frondosa on ovariectomy-induced osteoporosis in mice via inhibiting PINK1/Parkin signaling, oxidative stress and inflammation

Int J Biol Macromol. 2024 May 18;270(Pt 2):132370. doi: 10.1016/j.ijbiomac.2024.132370. Online ahead of print.

Authors

Qinghua Liu¹, Qianqian Yao², Changqin Li², Hui Yang², Yanbo Liang², Heqi Yang², Meng Meng³, Qiang Xiao⁴, Jian Qin⁵

Affiliations

¹ Department of Clinical Laboratory, The Second Affiliated Hospital of Shandong First Medical University, No.366 Taishan Street, Tai'an 271000, China.
² Department of Radiology, The Second Affiliated Hospital of Shandong First Medical University, No.366 Taishan Street, Tai'an 271000, China.
³ State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China.
⁴ Department of Cardiovascular Medicine, The Second Affiliated Hospital of Shandong First Medical University, No.366 Taishan Street, Tai'an 271000, China.
⁵ Department of Radiology, The Second Affiliated Hospital of Shandong First Medical University, No.366 Taishan Street, Tai'an 271000, China. Electronic address: qinjian@sdfmu.edu.cn.

PMID: 38763253
DOI: 10.1016/j.ijbiomac.2024.132370

Abstract

Background: Polysaccharides from Grifola frondosa(GFP) have gained worldwide attention owing to their promising biological activities and potential health benefits.

Purpose: This study aimed to investigate the effects of GFP on alleviation of osteoporosis in ovariectomized (OVX) mice and examine the underlying mechanism.

Method: A mouse model of postmenopausal osteoporosis was established by OVX method, Forty eight C57BL/6 female mice were randomly divided into Normal group, OVX alone (Model group, n = 8), OVX + 10 mg/kg GFP (GFP-L group, n = 8), OVX + 20 mg/kg GFP (GFP-M group, n = 8), OVX + 40 mg/kg GFP (GFP-H group, n = 8), OVX + 10 mg/kg Estradiol valerate (Positive group, n = 8).

Results: The results showed that compared with Model group, the concentrations of interleukin (IL)-1β, interleukin (IL)-6 and Tumor necrosis factor-α (TNF-α) were significantly reduced, the activity of superoxide dismutase (SOD) and glutathione (GSH) were significantly increased, the content of myeloperoxidase (MPO) and malondialdehyde (MDA) were significantly reduced, and the proteins levels of PINK1, Parkin, Beclin-1 and LC3-II were significantly decreased in the GFP groups.

Conclusion: This study demonstrates that GFP alleviates ovariectomy-induced osteoporosis via reduced secretion of inflammatory cytokines, improvement in the oxidative stress status in the body, and inhibition of the PINK1/Parkin signaling pathway.

Keywords: Grifola frondose; Osteoporosis; Oxidative stress; PINK1/Parkin signal pathway; Water-soluble polysaccharide.