DONG Hanyu,WANG Chun,LIU Chunying,et al.Mechanisms of Shenmai Injection in Improving Cisplatin Resistance in Non-small Cell Lung Cancer[J].Chinese Journal of Experimental Traditional Medical Formulae,2026,32(06):131-142.
DONG Hanyu,WANG Chun,LIU Chunying,et al.Mechanisms of Shenmai Injection in Improving Cisplatin Resistance in Non-small Cell Lung Cancer[J].Chinese Journal of Experimental Traditional Medical Formulae,2026,32(06):131-142.DOI: 10.13422/j.cnki.syfjx.20251027.
Mechanisms of Shenmai Injection in Improving Cisplatin Resistance in Non-small Cell Lung Cancer增强出版
To investigate whether Shenmai injection (SMI) improves cisplatin resistance in non-small cell lung cancer (NSCLC) by modulating lipid metabolism and inducing ferroptosis.
Methods
2
Human lung adenocarcinoma cisplatin-resistant A549/DDP cells were divided into the following groups: Blank group, cisplatin group (23.3 μmol·L
-1
cisplatin), SMI group (20 g·L
-1
SMI), cisplatin combined with SMI group (23.3 μmol·L
-1
cisplatin + 20 g·L
-1
SMI), cisplatin combined with ferroptosis inhibitor/inducer Ferrostatin-1/Erastin group (23.3 μmol·L
-1
cisplatin + 10 μmol·L
-1
Ferrostatin-1/5 μmol·L
-1
Erastin), and cisplatin combined with SMI and Ferrostatin-1/Erastin group (23.3 μmol·L
-1
cisplatin + 20 g·L
-1
SMI + 10 μmol·L
-1
Ferrostatin-1/5 μmol·L
-1
Erastin). Network pharmacology, transcriptomics and metabolomics, Cell Counting Kit-8 (CCK-8) assay, transmission electron microscopy (TEM), colorimetric assays, and Western blot analysis were employed to evaluate the effects of these treatments on A549/DDP cell viability, lipid droplet formation, lipid metabolite levels, mitochondrial function, lipid peroxidation, glutathione (GSH) content, total and ferrous iron content, and effects on ferroptiosis and autophagy related protein expression levels.
Results
2
SMI improved cisplatin resistance in NSCLC mainly by targeting lipid metabolism-related pathways in A549/DDP cells, affecting tumor cell lipid metabolism via autophagy, ferroptosis, and glycerophospholipid metabolism pathways. Compared with the cisplatin group, the cisplatin combined with SMI group showed significantly decreased cell viability (
P
<
0.01), increased lipid droplet accumulation (
P
<
0.01), and reduced mitochondrial maximal respiration, basal respiration, mitochondrial membrane potential, GSH content, total iron, and ferrous iron (all
P
<
0.01). Mitochondrial reactive oxygen species (ROS) was significantly elevated(
P
<
0.01), and lipid peroxidation levels were significantly increased. Protein expression analysis showed significant downregulation of solute carrier family 7 member 11 (SLC7A11) and p62 (
P
<
0.05,
P
<
0.01) and upregulation of ferritin heavy chain (FTH) and microtubule-associated protein 1 light chain 3Ⅱ (LC3Ⅱ) (
P
<
0.05,
P
<
0.01). Compared with the cisplatin combined with SMI group, addition of Ferrostatin-1 significantly increased cell viability (
P
<
0.05), decreased mitochondrial ROS levels (
P
<
0.05), alleviated mitochondrial shrinkage, and reduced lipid peroxidation. Conversely, addition of Erastin further decreased cell viability (
P
<
0.01).
Conclusion
2
SMI improves cisplatin resistance in NSCLC by inducing oxidative stress, which may trigger ferroptosis through upregulation of lipophagy.
关键词
Keywords
references
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Related Institution
Key Laboratory of Ministry of Education for Traditional Chinese Medicine Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine
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