Chinese Journal of Tissue Engineering Research ›› 2024, Vol. 28 ›› Issue (16): 2505-2511.doi: 10.12307/2024.355

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Protective mechanism of alendronate granule in a rat osteoporosis model based on TMT proteomic analysis

Huang Huimin1, 2, Xie Bingying1, 2, Huang Jingwen2, 3, Huang Xiaobin2, 3, Xie Lihua2, 3, Li Shengqiang2, 3, Ge Jirong2, 3   

  1. 1Fujian University of Traditional Chinese Medicine, Fuzhou 350003, Fujian Province, China; 2Institute of Basic Research, Fujian Academy of Chinese Medicine Science, Fuzhou 350003, Fujian Province, China; 3Key Laboratory of Combined Traditional Chinese and Western Medicine for Prevention and Treatment of Osteoporosis (Fujian Academy of Chinese Medicine Science, Rehabilitation Hospital Affiliated to Fujian University of Traditional Chinese Medicine), Fuzhou 350003, Fujian Province, China
  • Received:2023-04-25 Accepted:2023-06-19 Online:2024-06-08 Published:2023-07-29
  • Contact: Li Shengqiang, MD, Researcher, Institute of Basic Research, Fujian Academy of Chinese Medicine Science, Fuzhou 350003, Fujian Province, China; Key Laboratory of Combined Traditional Chinese and Western Medicine for Prevention and Treatment of Osteoporosis (Fujian Academy of Chinese Medicine Science, Rehabilitation Hospital Affiliated to Fujian University of Traditional Chinese Medicine), Fuzhou 350003, Fujian Province, China
  • About author:Huang Huimin, Master candidate, Fujian University of Traditional Chinese Medicine, Fuzhou 350003, Fujian Province, China; Institute of Basic Research, Fujian Academy of Chinese Medicine Science, Fuzhou 350003, Fujian Province, China
  • Supported by:
    National Natural Science Foundation of China, No. 81774350 (to LSQ); Natural Science Foundation of Fujian Province, No. 2021J01915 (to LSQ); Chinese Medicine Research Project Plan of Fujian Province, No. 2021zylc42 (to LSQ)

Abstract: BACKGROUND: The mechanisms and targets of alendronate in the treatment of osteoporosis still need to be investigated in depth. 
OBJECTIVE: To investigate the mechanism by which alendronate regulates bone metabolism in rats with osteoporosis and to perform a bioinformatics analysis of differentially expressed proteins. 
METHODS: Female Sprague-Dawley rats were randomly divided into three groups (n=12 per group): model group, alendronate group and sham-operated group. Animal models of osteoporosis were prepared using ovariectomy in the model and alendronate groups. At 4 weeks after modeling, rats in the alendronate group were gavaged with alendronate; the other two groups were given the equal volume of normal saline. After 12 weeks of continuous gavage, the bone mineral density of the tibia was measured and the lumbar spine of the rats was taken for proteomic analysis using Tandem mass tag-liquid chromatography-tandem mass spectrometry technique to identify differentially expressed proteins for gene ontology, Kyoto Encyclopedia of Genes and Genomes pathway and protein-protein interaction analysis.
RESULTS AND CONCLUSION: There were 32 up-regulated proteins and 51 down-regulated proteins identified between the alendronate group and model group. Gene ontology enrichment analysis showed that the differentially expressed proteins were mainly involved in molecular functions, such as binding and catalytic activity, and in biological processes, such as cellular process and metabolic process. Kyoto Encylopedia of Genes and Genomes enrichment analysis showed that the differentially expressed proteins in the alendronate group and model group were mainly involved in the biosynthesis of pantothenate and coenzyme A. Protein-protein interaction analysis indicated that among the differentially expressed proteins in the alendronate group and model group, Hspa1l, Enpp3, Unc45a, Myh9 and Cant1 were located at the nodes of the protein-protein interaction network and were closely related to bone metabolism. Overall, these findings indicate that alendronate may regulate bone metabolism in the rat model of osteoporosis by regulating the expression of differentially expressed proteins and biosynthesis of pantothenate and coenzyme A.

Key words: alendronate, Tandem mass tag technology, osteoporosis, proteomics, protein-protein interaction, differentially expressed protein, bone metabolism

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