Current pharmaceutical design · 2026
ZhiXiaoSanZheng Decoction Ameliorates HGPA-induced HK-2 Cell Injury and Mitochondrial Metabolic Imbalance by Regulating the AMPK/PPARα/CPT1A Pathway.
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Chen Huixi, Xia Chenhui, Li Yaotan, Sun Weiwei, Wang Yaoxian
Аннотация
INTRODUCTION: ZhiXiaoSanZheng Decoction (ZXSZD) is a modern clinical Traditional Chinese Medicine (TCM) formula that exerts favorable clinical efficacy in the treatment of Diabetic Kidney Disease (DKD). However, its potential renal tubular protective mechanism remains unclear.
METHODS: Ultra-high-performance liquid chromatography-tandem mass spectrometry was employed to analyze and characterize the chemical ingredients of ZXSZD. An in vitro cell model was established by stimulating HK-2 cells with High Glucose-Palmitic Acid (HGPA) to mimic the metabolic microenvironment of DKD. Oil Red O staining was performed to assess intracellular lipid accumulation. Western blot and immunofluorescence assays were used to determine the protein expression levels of key molecules in the AMPK/ PPARα/CPT1A signaling pathway. Additionally, mitochondrial membrane potential, intracellular ATP content, activities of mitochondrial respiratory chain complexes (I and IV), oxidative stress levels, and concentrations of inflammatory cytokines were quantified.
RESULTS: A total of 141 chemical ingredients were preliminarily identified in ZXSZD. In HGPA-induced HK- 2 cells, ZXSZD significantly attenuated intracellular lipid accumulation, upregulated the protein expression of p-AMPK, PPARα, and CPT1A, ameliorated energy metabolism impairment and mitochondrial dysfunction, and suppressed oxidative stress as well as inflammatory responses.
DISCUSSION: The results indicate that ginkgolide effectively binds and stabilizes the ApoE4 N-terminal domain, supporting its potential role in modulating a key pathological factor in Alzheimer's disease. Its superior pharmacokinetic profile and interaction dynamics compared with those of curcumin and resveratrol suggest broader therapeutic relevance. These in silico insights provide a mechanistic basis for further investigation into ginkgolide's neuroprotective effects.
CONCLUSION: ZXSZD ameliorates energy metabolism impairment and mitochondrial dysfunction in HGPAinduced HK-2 cells by activating the AMPK/PPARα/CPT1A signaling pathway, while also inhibiting oxidative stress and inflammation.
METHODS: Ultra-high-performance liquid chromatography-tandem mass spectrometry was employed to analyze and characterize the chemical ingredients of ZXSZD. An in vitro cell model was established by stimulating HK-2 cells with High Glucose-Palmitic Acid (HGPA) to mimic the metabolic microenvironment of DKD. Oil Red O staining was performed to assess intracellular lipid accumulation. Western blot and immunofluorescence assays were used to determine the protein expression levels of key molecules in the AMPK/ PPARα/CPT1A signaling pathway. Additionally, mitochondrial membrane potential, intracellular ATP content, activities of mitochondrial respiratory chain complexes (I and IV), oxidative stress levels, and concentrations of inflammatory cytokines were quantified.
RESULTS: A total of 141 chemical ingredients were preliminarily identified in ZXSZD. In HGPA-induced HK- 2 cells, ZXSZD significantly attenuated intracellular lipid accumulation, upregulated the protein expression of p-AMPK, PPARα, and CPT1A, ameliorated energy metabolism impairment and mitochondrial dysfunction, and suppressed oxidative stress as well as inflammatory responses.
DISCUSSION: The results indicate that ginkgolide effectively binds and stabilizes the ApoE4 N-terminal domain, supporting its potential role in modulating a key pathological factor in Alzheimer's disease. Its superior pharmacokinetic profile and interaction dynamics compared with those of curcumin and resveratrol suggest broader therapeutic relevance. These in silico insights provide a mechanistic basis for further investigation into ginkgolide's neuroprotective effects.
CONCLUSION: ZXSZD ameliorates energy metabolism impairment and mitochondrial dysfunction in HGPAinduced HK-2 cells by activating the AMPK/PPARα/CPT1A signaling pathway, while also inhibiting oxidative stress and inflammation.