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Effect of acupuncture on hippocampal mitochondrial proteome expression in SAMP8 mouse model with Alzheimer disease
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Effect of acupuncture on hippocampal mitochondrial proteome expression in SAMP8 mouse model with Alzheimer disease
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Journal Article
Effect of acupuncture on hippocampal mitochondrial proteome expression in SAMP8 mouse model with Alzheimer disease
2018
Overview
Objective
To observe the effect of acupuncture on the expression of mitochondrial proteome in hippocampus of senescence-accelerated mouse prone 8 (SAMP8) mice models with Alzheimer disease (AD), and to explore the possible protective mechanism of acupuncture on mitochondria.
Methods
Sixty 6-month-old male SAMP8 mice were randomly divided into an acupuncture at acupoint group, an acupuncture at non-acupoint group and a model group, 20 mice in each group. The 20 male senescence-accelerated mouse/resistance 1 (SAMR1) mice of the same age were used as a normal control group. Shenshu (BL 23), Baihui (GV 20), Xuehai (SP 10) and Geshu (BL 17) were selected for acupuncture intervention in acupuncture at acupoint group. After an 8-week intervention, mitochondrial tissues were extracted from the hippocampus. Differentially expressed proteins were identified by subcellular organelle proteomics. Western blot was used to verify the expressions of some related proteins in hippocampal mitochondria.
Results
Compared with the model group, there were 13 differentially expressed protein spots in the acupuncture at acupoint group, of which, 9 were up-regulated, including neurofilament light polypeptide (NFL), actin (cytoplasmic 1, database ID: ACTB), tubulin beta-2A chain (TBB2A), tropomodulin-2 (TMOD2), pyruvate dehydrogenase E1 component subunit beta (PDHE1-β), NADH-ubiquinone oxidoreductase 75 kDa subunit (database ID: NDUS1), heat shock cognate 71 kDa protein (HSC71), pyruvate dehydrogenase E1 component subunit alpha (PDHE1-α) and ATP synthase beta subunit (ATP-β); 4 were down-regulated, including glial fibrillary acidic protein (GFAP), pyruvate dehydrogenase phosphatase 1 (PDP1), mitochondrial-processing peptidase subunit alpha (MMP-α) and adenosine kinase (ADK). According to the information provided in the protein database, most of the differentially expressed proteins involve the regulation of mitochondrial function and structure. The expression levels of NFL and TBB2A in the normal control group and the acupuncture at acupoint group were significantly higher than those in the acupuncture at non-acupoint group (
P
<0.05). ATP-β and NDUS1 expression levels were significantly higher in the acupuncture at acupoint group than those in the acupuncture at non-acupoint group (
P
<0.05); there was no significant difference between the acupuncture at non-acupoint group and the model group (
P
>0.05).
Conclusion
Acupuncture may achieve the potential therapeutic effect on AD by regulating the structure and functional proteins of hippocampal mitochondria.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
Subject
