1.Effects of thumbtack-needle embedding therapy of auricular acupuncture on gastrointestinal function and intestinal microflora in patients with gastric cancer after operation.
Mengjiao JING ; Yuanyuan ZHANG ; Yuanjuan SHEN ; Yongjun PENG ; Hesheng WANG
Chinese Acupuncture & Moxibustion 2025;45(3):300-311
OBJECTIVE:
To observe the effects of thumbtack-needle embedding therapy of auricular acupuncture on gastrointestinal function and intestinal microflora in the patients with gastric cancer after operation, and to explore its mechanism.
METHODS:
A total of 80 patients with gastric cancer after radical operation were randomly divided into an observation group (40 cases, 3 cases discontinued) and a control group (40 cases, 3 cases discontinued). The patients of both groups received the perioperative care for accelerating recovery. Additionally, in the observation group, the thumbtack-needle embedding therapy of auricular acupuncture was delivered at the auricular points of unilateral side, including Wei (CO4), Pi (CO13), Dachang (CO7), Xiaochang (CO6), Yuanzhong (AT2,3,4i), Erzhong (HX1), Sanjiao (CO17) and Jiaowozhong (TF3), and the needles were embedded and retained for 72 h. The postoperative recovery time of gastrointestinal function (the postoperative bowel sound recovery time, the first exhaust time, the first defecation time), the postoperative hospital stay and pain visual analogue scale (VAS) score were observed in the two groups. Before operation and on day 5 after operation, the serum gastrin level was detected in the two groups. The third-generation 16S rRNA sequencing technology was used to detect the composition and relative abundance of intestinal flora in the two groups before and after operation.
RESULTS:
Compared with the control group, the postoperative bowel sound recovery time, the first exhaust time and the first defecation time were shortened in the observation group (P<0.05). In the observation group, the VAS scores at 24 h, 48 h, and 72 h after surgery were lower than those of the control group, respectively (P<0.05). There was no significant differences in postoperative hospital stay and serum gastrin level between the two groups (P>0.05). The alpha diversity analysis showed that the differences in Shannon index, Simpson index, Pielou_J index and Pd_fath index were not significant statistically after intervention between the two groups (P>0.05). After intervention, the community structure of the fecal sample was similar at each taxonomic level between the two groups, and although the proportion between species was various, the difference was not significant (P>0.05). After intervention, there were 55 species with the differences between the two groups, 17 species of them presented significant difference in relative abundance in the observation group and 38 species in the control group. Regarding the level of genus, the levels of Klebsiell and Enterobacter increased (P<0.05) and the level of Streptococcus decreased (P<0.05) in the observation group. The main microbial groups that played an important role were Coprobacillaceae, Sutterellaceae and Yersiniaceae in the observation group. KEGG function prediction indicated that the function of intestinal microflora was mainly associated with the cofactor and vitamin metabolism, carbohydrate metabolism, and amino acid metabolism.
CONCLUSION
The thumbtack-needle embedding therapy of auricular acupuncture improves the postoperative gastrointestinal function of the patients with gastric cancer probably through regulating the structure and relative abundance of intestinal microflora and affecting the energy metabolism.
Humans
;
Male
;
Female
;
Middle Aged
;
Acupuncture, Ear/instrumentation*
;
Gastrointestinal Microbiome
;
Aged
;
Stomach Neoplasms/therapy*
;
Adult
;
Acupuncture Points
;
Gastrointestinal Tract/microbiology*
;
Intestines/physiopathology*
;
Postoperative Period
;
Acupuncture Therapy
2.Effect of electroacupuncture on intestinal function after gastric cancer surgery.
Junjie GUAN ; Miaomiao GE ; Yuling CAI ; Ting WANG ; Zhiwei JIANG ; Jianhua SUN ; Gang WANG
Chinese Acupuncture & Moxibustion 2025;45(6):751-756
OBJECTIVE:
To observe the effect of electroacupuncture combined with enhanced recovery after surgery (ERAS) protocol on promoting intestinal function in patients after gastric cancer surgery.
METHODS:
Forty-four patients who underwent radical gastrectomy for gastric cancer were randomly divided into an experimental group (22 cases, 3 cases were excluded) and a control group (22 cases, 4 cases were excluded). Both groups received treatment under ERAS protocol, the experimental group was given electroacupuncture at bilateral Neiguan (PC6), Hegu (LI4), Zusanli (ST36) and Quchi (LI11), disperse-dense wave was selected, with frequency of 2 Hz/100 Hz. The control group received placebo electroacupuncture intervention, with the same acupoints as the experimental group, electrode pads were placed on the acupoints without electrical stimulation. Each session lasted 30 min, starting from 1 h after surgery, once every 24 h, until the patient resumed anal flatus. The intestinal sound rate of both groups was observed 24 h before surgery and 24, 48 h after surgery. The bowel sound recovery time (BSRT), time to first anal flatus, time to first defecation, and tolerance to oral enteral nutrition suspension were compared between the two groups. The levels of serum C-reactive protein (CRP), interleukin (IL)-2, IL-4, IL-6, IL-10, IL-12, IL-17, tumor necrosis factor-α (TNF-α) and interferon-γ (IFN-γ) were measured 24 h before surgery and 24 h after surgery in both groups.
RESULTS:
The intestinal sound rate 24 h after surgery was decreased compared with that 24 h before surgery in the two groups (P<0.05), the intestinal sound rate 24, 48 h after surgery in the experimental group was higher than that in the control group (P<0.05). The BSRT in the experimental group was earlier than that in the control group (P<0.05) .The levels of serum CRP, IL-6, IL-10 24 h after surgery in the experimental group were higher than those 24 h before surgery (P<0.05), while the levels of serum CRP, IL-4, IL-6, IL-10, IFN-γ in the control group were higher than those 24 h before surgery (P<0.05); the levels of serum CRP、IL-4、IFN-γ 24 h after surgery in the experimental group were lower than those in the control group (P<0.05) .The tolerance rate of oral enteral nutrition suspension in the experimental group was 84.2% (16/19), which was higher than 50.0% (9/18) in the control group (P<0.05).
CONCLUSION
Electroacupuncture combined with ERAS protocol can improve the intestinal motility, shorten the BSRT, enhance the tolerance of oral intake, and reduce inflammatory response in patients after gastric cancer surgery.
Adult
;
Aged
;
Female
;
Humans
;
Male
;
Middle Aged
;
Acupuncture Points
;
C-Reactive Protein/metabolism*
;
Electroacupuncture
;
Gastrectomy
;
Interleukin-10
;
Interleukin-6
;
Intestines/physiopathology*
;
Stomach Neoplasms/therapy*
3.Herb-spreading moxibustion as an adjuvant treatment for chemotherapy-induced nausea and vomiting of spleen and stomach deficiency cold in gastric cancer: a randomized controlled trial.
Zhongting ZHAO ; Xiaohua WANG ; Jie CAO ; Fan FAN
Chinese Acupuncture & Moxibustion 2025;45(12):1723-1729
OBJECTIVE:
To observe the clinical efficacy of herb-spreading moxibustion as an adjuvant treatment for chemotherapy-induced nausea and vomiting (CINV) of spleen and stomach deficiency cold in gastric cancer.
METHODS:
Seventy-six patients with CINV of spleen and stomach deficiency cold in gastric cancer were randomly divided into an observation group (38 cases, 1 case was discontinued, 1 case dropped out) and a control group (38 cases, 1 case was discontinued). The patients in both groups were treated with cisplatin+tigio regimen chemotherapy, and were treated with basic anti-nausea drugs on the 1st to 3rd day of chemotherapy. The observation group was treated with herb-spreading moxibustion at Zhongwan (CV12) acupoint area (covering from Shangwan [CV13] to Shenque [CV8] of the conception vessel, and from both sides to the kidney meridian of foot-shaoyin). The herb was selected as Fuzi Lizhong decoction, once a day, about 50 min each time, with 3 consecutive days as one treatment course, with an interval of 1 day between each course, for a total of 3 treatment courses. The grading of nausea and vomiting degree in the two groups were recorded on the 1st, 3rd, 7th and 14th days of chemotherapy. Karnofsky performance status (KPS) score in the two groups was observed before treatment and on the 1st, 3rd, 7th and 14th days of chemotherapy. The TCM symptom grading and TCM syndrome score of the two groups before and after treatment were compared, and the clinical efficacy and safety of the two groups were evaluated.
RESULTS:
On the 7th and 14th days of chemotherapy, the grading of nausea degree in the observation group was lower than that in the control group (P<0.05). On the 3rd, 7th and 14th days of chemotherapy, the grading of vomiting degree in the observation group was lower than that in the control group (P<0.05, P<0.01). Compared before treatment, the KPS scores of the two groups on the 1st day of chemotherapy and the control group on the 7th day of chemotherapy were decreased (P<0.05, P<0.01), and the KPS scores of the observation group on the 7th day of chemotherapy and the two groups on the 14th day of chemotherapy were increased (P<0.01). On the 7th and 14th days of chemotherapy, the KPS scores of the observation group were higher than those of the control group (P<0.01). After treatment, the each item grading of TCM symptom in the two groups was better than that before treatment (P<0.01), except for loose stool, the each item grading of TCM symptom in the observation group was better than that in the control group (P<0.05, P<0.01). After treatment, the scores of TCM syndrome in the two groups were lower than those before treatment (P<0.01), and the score in the observation group was lower than that in the control group (P<0.01). The obvious effective rate of the observation group was 58.3% (21/36), which was higher than 24.3% (9/37) of the control group (P<0.01). No adverse events occurred in both groups.
CONCLUSION
Herb-spreading moxibustion as an adjuvant treatment for CINV of spleen and stomach deficiency cold in gastric cancer can effectively relieve nausea and vomiting, and improve the symptoms of TCM, and improve the quality of life of patients. The clinical efficacy is satisfactory and the safety is good.
Humans
;
Moxibustion
;
Male
;
Female
;
Middle Aged
;
Stomach Neoplasms/drug therapy*
;
Nausea/physiopathology*
;
Vomiting/physiopathology*
;
Aged
;
Adult
;
Acupuncture Points
;
Antineoplastic Agents/therapeutic use*
;
Drugs, Chinese Herbal/administration & dosage*
;
Spleen/drug effects*
;
Stomach/drug effects*
4.Research progress on NCOA4-mediated ferritinophagy and related diseases.
Chen JIA ; Hong-Ji LIN ; Fang CUI ; Rui LU ; Yi-Ting ZHANG ; Zhi-Qin PENG ; Min SHI
Acta Physiologica Sinica 2025;77(1):194-208
Nuclear receptor co-activator 4 (NCOA4) acts as a selective cargo receptor that binds to ferritin, a cytoplasmic iron storage complex. By mediating ferritinophagy, NCOA4 regulates iron metabolism and releases free iron in the body, thus playing a crucial role in a variety of biological processes, including growth, development, and metabolism. Recent studies have shown that NCOA4-mediated ferritinophagy is closely associated with the occurrence and development of iron metabolism-related diseases, such as liver fibrosis, renal cell carcinoma, and neurodegenerative diseases. In addition, a number of clinical drugs have been identified to modulate NCOA4-mediated ferritinophagy, significantly affecting disease progression and treatment efficacy. This paper aims to review the current research progress on the role of NCOA4-mediated ferritinophagy in related diseases, in order to provide new ideas for targeted clinical therapy.
Humans
;
Nuclear Receptor Coactivators/physiology*
;
Ferritins/metabolism*
;
Animals
;
Neurodegenerative Diseases/metabolism*
;
Iron/metabolism*
;
Autophagy/physiology*
;
Liver Cirrhosis/metabolism*
;
Carcinoma, Renal Cell/metabolism*
;
Kidney Neoplasms/physiopathology*
5.Research progress of PANoptosis in cancer.
Yi-Ling LUO ; Liu-Yan CHEN ; Yao-Bin WANG ; Su-Fang ZHOU
Acta Physiologica Sinica 2025;77(2):277-288
PANoptosis is a type of programmed cell death regulated by the PANoptosome with key features of pyroptosis, apoptosis and/or necroptosis. As the most complex programmed cell death, PANoptosis emphasizes the compensatory role among multiple programmed cell deaths, and can regulate malignant phenotypes such as proliferation, migration, and invasion of tumor cells through multiple signaling pathways, thus affecting malignant tumor progression. It has been found that PANoptosis plays a dual role in tumor progression and treatment. Therefore, it is clinically important to understand the molecular mechanisms by which PANoptosis affects tumorigenesis, development and progression. This paper reviews the molecular mechanisms of apoptosis, pyroptosis and necroptosis, and discusses the activation and regulation mechanisms of PANoptosis and PANoptosome as well as the research progress on the role of PANoptosis in tumors, aiming to provide new ideas for cancer treatment and prognostic assessment.
Humans
;
Neoplasms/physiopathology*
;
Pyroptosis/physiology*
;
Apoptosis/physiology*
;
Necroptosis/physiology*
;
Signal Transduction
;
Animals
6.Research progress on the regulation of ferroptosis by non-coding RNAs in esophageal squamous cell cancer.
Jia-Min WANG ; Pan LIU ; Rui ZHU ; Dan SU
Acta Physiologica Sinica 2025;77(3):563-572
Esophageal squamous cell carcinoma (ESCC) is a prevalent malignancy of the digestive tract that poses a significant threat to human health, with an incidence rate that continues to rise globally. Increasing research highlights the crucial role of non-coding RNAs (ncRNAs), including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), in regulating ferroptosis and contributing to the malignant progression of ESCC. These ncRNAs influence the proliferation, apoptosis, and invasion capabilities of ESCC cells by modulating iron metabolism and redox balance. miRNAs can regulate cellular iron accumulation and oxidative stress by targeting ferroptosis-related genes; lncRNAs may indirectly affect iron metabolic pathways by competitively binding to miRNAs; circRNAs, through a sponge effect, may regulate the activity of miRNAs. This review systematically summarizes the mechanisms of ncRNAs-mediated regulation of ferroptosis in ESCC, focusing on molecular mechanisms, regulatory networks, and their specific roles in the ferroptosis process. Additionally, the potential of ncRNAs in ESCC diagnosis, prognosis assessment, and therapeutic intervention is discussed, aiming to provide new insights and targets for ferroptosis-based tumor therapy.
Ferroptosis/genetics*
;
Humans
;
Esophageal Neoplasms/physiopathology*
;
Esophageal Squamous Cell Carcinoma
;
MicroRNAs/physiology*
;
RNA, Long Noncoding/physiology*
;
RNA, Circular
;
RNA, Untranslated/physiology*
7.Effect of Biyan Jiedu Capsules on proliferation and apoptosis of nasopharyngeal carcinoma cells based on PI3K/Akt pathway.
Ting LIN ; Yang-Yang TAO ; Ying-Gang TANG ; Ju YUAN ; Hui-Ping DU ; Lin-Yu DENG ; Fang-Liang ZHOU ; Ying-Chun HE
China Journal of Chinese Materia Medica 2025;50(7):1920-1927
To investigate the effects of Biyan Jiedu Capsules on the proliferation and apoptosis of nasopharyngeal carcinoma cells and their molecular mechanism, nasopharyngeal carcinoma cells CNE1 and CNE2 were used. They were divided into control group(30% blank serum medium), low-(10% drug-containing serum + 20% blank serum medium), medium-(20% drug-containing serum + 10% blank serum medium), and high-(30% drug-containing serum medium) concentration group of Biyan Jiedu Capsules according to in vitro experiment. After 24 h of intervention, the effects of Biyan Jiedu Capsules on the proliferation of CNE1 and CNE2 were detected by CCK-8 assay, clonal formation experiment, and EdU staining. The effect of Biyan Jiedu Capsules on apoptosis of CNE1 and CNE2 was detected by flow cytometry. Western blot was used to detect the effect of Biyan Jiedu Capsules on the expression of X-linked apoptosis inhibitor protein(XIAP), survivin, proliferating cell nuclear antigen(PCNA), and PI3K/Akt pathway-related proteins in CNE1 and CNE2. The results showed that compared with the control group, the survival rate of CNE1 and CNE2 in the medium and high concentration groups of Biyan Jiedu Capsules could be decreased in a concentration-dependent way(P<0.05, P<0.01). At the same time, EdU staining and clonal formation experiments showed that the proliferation of CNE1 and CNE2 was significantly inhibited in the medium and high concentration groups of Biyan Jiedu Capsules(P<0.05, P<0.01). Flow cytometry showed that the apoptosis rate of CNE1 and CNE2 was significantly increased in all concentration groups of Biyan Jiedu Capsules(P<0.01), and the apoptosis rate was concentration-dependent. Western blot showed that the expressions of XIAP, survivin, PCNA, p-PI3K, and p-Akt in all concentration groups of Biyan Jiedu Capsules were significantly down-regulated(P<0.05, P<0.01). In conclusion, Biyan Jiedu Capsules can inhibit the proliferation and induce apoptosis of nasopharyngeal carcinoma cells possibly by down-regulating the PI3K/Akt signaling pathway.
Humans
;
Apoptosis/drug effects*
;
Cell Proliferation/drug effects*
;
Nasopharyngeal Carcinoma
;
Nasopharyngeal Neoplasms/physiopathology*
;
Proto-Oncogene Proteins c-akt/genetics*
;
Cell Line, Tumor
;
Drugs, Chinese Herbal/pharmacology*
;
Phosphatidylinositol 3-Kinases/genetics*
;
Signal Transduction/drug effects*
;
Capsules
;
Carcinoma/drug therapy*
8.Astragali Radix-Curcumae Rhizoma drug pair inhibits growth of osteosarcoma by affecting cell adhesion and angiogenesis via PI3K/Akt/HIF-1α pathway.
Dao-Tong YUAN ; Zhi-Meng ZHANG ; Rui GONG ; Xi-Min JIN ; Can-Ran WANG ; Jie ZHAO
China Journal of Chinese Materia Medica 2025;50(8):2217-2228
This study aims to investigate the optimal ratio of Astragali Radix-Curcumae Rhizoma(AC) for inhibiting the proliferation of 143B osteosarcoma cells, and to investigate the mechanism by which AC inhibits osteosarcoma growth and metastasis through angiogenesis and cell adhesion mediated by the phosphatidylinositol 3-kinase(PI3K)/protein kinase B(Akt)/hypoxia inducible factor-1α(HIF-1α) pathway. A subcutaneous 143B tumor-bearing nude mouse model was successfully established and randomly divided into the model group, and the AC 1∶1, 2∶1, and 4∶1 groups. Body weight, tumor volume, and tumor weight were recorded. Real-time quantitative polymerase chain reaction(RT-qPCR) and Western blot were used to detect the mRNA and protein expression levels of PI3K, Akt, phosphorylated Akt(p-Akt), HIF-1α, vascular endothelial growth factor A(VEGFA), transforming growth factor-β1(TGF-β1), epithelial cadherin(E-cadherin), neural cadherin(N-cadherin), vimentin, matrix metalloproteinase 2(MMP2), matrix metalloproteinase 9(MMP9), B-cell lymphoma-2(Bcl-2), Bcl-2-associated X protein(Bax), and caspase-3 in the hypoxic core region of the tumor tissue. A cell hypoxia model was established, and the effects of AC-medicated serum(model group, AC 1∶1, 2∶1, and 4∶1 groups) on angiogenesis, proliferation, adhesion, invasion, and migration of 143B osteosarcoma cells were examined through CCK-8, flow cytometry, Transwell assay, cell adhesion assay, and HUVEC tube formation assay. The results showed that compared with the model group, the tumor weight and volume were smallest in the 2∶1 group. The expression levels of PI3K, Akt, p-Akt, HIF-1α, VEGFA, and TGF-β1 were significantly decreased, and the protein expression of E-cadherin was significantly increased, while the protein expression of N-cadherin, vimentin, MMP2, and MMP9 was significantly decreased. Additionally, the protein expression of Bax and caspase-3 was significantly increased, and Bcl-2 protein expression was significantly decreased. In vitro experiments showed that after intervention with AC-medicated serum at a 2∶1 ratio, the cell activity, adhesion, invasion, and migration of 143B cells were significantly reduced, apoptosis was significantly increased, and HUVEC tube formation was significantly decreased. In conclusion, the 2∶1 ratio of AC showed the most effective inhibition of 143B cell growth. AC can inhibit the growth and metastasis of osteosarcoma 143B cells by regulating the PI3K/Akt/HIF-1α signaling pathway, inhibiting angiogenesis and reducing cell adhesion, invasion, and migration.
Osteosarcoma/pathology*
;
Animals
;
Proto-Oncogene Proteins c-akt/genetics*
;
Hypoxia-Inducible Factor 1, alpha Subunit/genetics*
;
Humans
;
Mice
;
Cell Adhesion/drug effects*
;
Cell Proliferation/drug effects*
;
Neovascularization, Pathologic/metabolism*
;
Drugs, Chinese Herbal/administration & dosage*
;
Phosphatidylinositol 3-Kinases/genetics*
;
Cell Line, Tumor
;
Mice, Nude
;
Signal Transduction/drug effects*
;
Astragalus Plant/chemistry*
;
Bone Neoplasms/physiopathology*
;
Male
;
Rhizome/chemistry*
;
Mice, Inbred BALB C
;
Angiogenesis
9.Preparation, characterization, and in vitro anti-liver tumor activity of bufalin nanoparticles with Scrophularia ningpoensis polysaccharide and ursodeoxycholic acid as carriers.
Zhen ZHENG ; Bi-Qi DENG ; Xue-Mei CHEN ; Li-Qiao ZHU ; Hua-Gang SHENG
China Journal of Chinese Materia Medica 2025;50(11):3013-3023
Bufalin(BF)has a significant anti-tumor effect, but its clinical application is severely restricted by its high toxicity and poor water solubility. In this study, Scrophularia ningpoensis polysaccharide(SNP)and ursodeoxycholic acid(UDCA) were synthesized into an SNP-UDCA conjugate. BF was encapsulated to prepare BF/SNP-UDCA nanoparticles(NPs). The amphiphilic compound SNP-UDCA was synthesized via the one-step method, and its structure was characterized by Fourier-transform infrared spectroscopy(FT-IR)and proton nuclear magnetic resonance(~1H-NMR). The preparation process of BF/SNP-UDCA NPs was optimized through single-factor investigations. The encapsulation efficiency and drug-loading capacity of BF/SNP-UDCA NPs were determined by high-performance liquid chromatography(HPLC). The molecular form of BF/SNP-UDCA NPs was characterized by using a transmission electron microscope, X-ray diffraction(XRD), and differential scanning calorimeter(DSC). Additionally, the stability of BF/SNP-UDCA NPs was evaluated. The release behavior of BF/SNP-UDCA NPs at different pH values was determined by dialysis. The in vitro anti-tumor effect of BF/SNP-UDCA NPs was evaluated by MTT cytotoxicity assay, flow cytometry for apoptosis, and cellular uptake. The in vitro liver targeting was evaluated by measuring cellular uptake by laser confocal microscopy. The results demonstrated that the SNP-UDCA conjugate was successfully synthesized through an esterification reaction between SNP and UDCA. The preparation process of BF/SNP-UDCA NPs was as follows: the feed ratio of SNP-UDCA to BF was 2∶1, the ultrasonic time was 30 minutes, and the stirring time was two hours. The prepared BF/SNP-UDCA NPs were spherical in shape, with a particle size of(252.74±6.05)nm, an encapsulation efficiency of 65.00%±2.51%, and a drug-loading capacity of 6.80%±0.44%. The XRD and DSC results indicated that BF was encapsulated within the NPs and existed in a molecular or amorphous state. The short-term stability of BF/SNP-UDCA NPs and stability in DMEM medium are good, and their in vitro release behavior followed the first-order equation and was pH-dependent according to the in vitro experiment. Compared with BF, BF/SNP-UDCA NPs at the same concentration showed significantly stronger cytotoxicity and apoptotic effects on HepG2 cells(P<0.05, P<0.01). The uptake of coumarin 6(C6)/SNP-UDCA NPs in HepG2 cells was time-dependent and higher than that in HeLa cells at the same concentration of C6/SNP-UDCA NPs. Moreover, after treatment with SNP, the uptake of C6/SNP-UDCA NPs in HepG2 cells decreased. In conclusion, the preparation process of BF/SNP-UDCA NPs was simple and feasible. BF/SNP-UDCA NPs could enhance the targeting ability and inhibitory effect of BF on liver cancer cells. This study will provide a foundation for liver-targeting nanoformulations of BF.
Bufanolides/pharmacology*
;
Nanoparticles/chemistry*
;
Humans
;
Drug Carriers/chemistry*
;
Ursodeoxycholic Acid/chemistry*
;
Antineoplastic Agents/pharmacology*
;
Polysaccharides/chemistry*
;
Scrophularia/chemistry*
;
Liver Neoplasms/physiopathology*
;
Hep G2 Cells
10.Glycyrrhetinic acid combined with doxorubicin induces apoptosis of human hepatocellular carcinoma HepG2 cells by regulating ERMMDs.
Ming-Shi PANG ; Xiu-Yun BAI ; Jue YANG ; Rong-Jun DENG ; Xue-Qin YANG ; Yuan-Yan LIU
China Journal of Chinese Materia Medica 2025;50(11):3088-3096
This study investigates the effect of glycyrrhetinic acid(GA) combined with doxorubicin(DOX) on apoptosis in HepG2 cells and its possible mechanisms. HepG2 cells were cultured in vitro, and cell viability was assessed using the cell counting kit-8(CCK-8) method. Flow cytometry was used to measure apoptosis levels in HepG2 cells. The cells were divided into the following groups: control group(0 μmol·L~(-1)), DOX group(2 μmol·L~(-1)), GA group(150 μmol·L~(-1)), and DOX + GA combination group(2 μmol·L~(-1) DOX + 150 μmol·L~(-1) GA), with treatments given for 24 hours. The colocalization level between the endoplasmic reticulum(ER) and mitochondria was assessed by colocalization fluorescence imaging. Fluorescence probes were used to measure the Ca~(2+) content in the ER and mitochondria. The qRT-PCR and Western blot were used to determine the mRNA and protein expression of sirtuin-3(SIRT3). Co-immunoprecipitation(CO-IP) was applied to investigate the interactions between voltage-dependent anion channel 1(VDAC1) and SIRT3, as well as between VDAC1, glucose-regulated protein 75(GRP75), and inositol 1,4,5-trisphosphate receptor(IP3R). The results showed that the combination of DOX and GA promoted apoptosis in HepG2 liver cancer cells. The colocalization level between the ER and mitochondria was significantly reduced, the Ca~(2+) content in the ER was significantly increased, and the Ca~(2+) content in the mitochondria was significantly decreased. The relative expression of VDAC1, GRP75, and IP3R was significantly reduced, and interactions between VDAC1, GRP75, and IP3R were observed. SIRT3 mRNA and protein expression levels were significantly increased, and an interaction between SIRT3 and VDAC1 was detected. The acetylation level of VDAC1 was significantly decreased. In conclusion, GA combined with DOX induces apoptosis in HepG2 cells by mediating the deacetylation of VDAC1 through SIRT3, weakening the interactions among VDAC1, GRP75, and IP3R. This regulates the formation of endoplasmic reticulum-mitochondrial membrane domains(ERMMDs), affects Ca~(2+) transport between the ER and mitochondria, and ultimately triggers cell apoptosis.
Humans
;
Apoptosis/drug effects*
;
Hep G2 Cells
;
Glycyrrhetinic Acid/pharmacology*
;
Doxorubicin/pharmacology*
;
Liver Neoplasms/genetics*
;
Carcinoma, Hepatocellular/physiopathology*
;
Mitochondria/metabolism*
;
Endoplasmic Reticulum/metabolism*
;
Cell Survival/drug effects*
;
Membrane Proteins/genetics*

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