1.Synergistic Effect and Mechanism of FUT8 Inhibitor 2FF With DOX for Cancer Treatment
Zhi-Dong XIE ; Xiao-Lian ZHANG
Progress in Biochemistry and Biophysics 2025;52(2):478-486
ObjectiveChemotherapy is one of the important therapeutic approaches for cancer treatment. However, the emergence of multidrug resistance and side effects significantly limit its application. To address these challenges, chemotherapy is often combined with other drugs or therapies. Among the 13 human fucosyltransferases (FUTs) identified, FUT8 (alpha-(1,6)-fucosyltransferase) is the only enzyme responsible for core fucosylation. Core fucosylation plays an important role in cancer occurrence, metastasis and chemotherapy resistance, making the suppression of FUT8 a potential strategy for reversing multidrug resistance. This study aims to evaluate the feasibility of combining the small molecule FUT8 inhibitor 2FF (2-deoxy-2-fluoro-L-fucose) with the clinical chemotherapeutic drug doxorubicin (DOX) for treating malignant tumors. MethodsThe human hepatocellular carcinoma cell line HepG2 and mouse colon cancer cell line CT26 cells were treated with 2FF, DOX or their combination and core fucosylation levels were assessed using Lectin blot. HepG2 and CT26 cells were exposed to 50 μmol/L 2FF for 72 h, followed by treatment with a gradient concentration of DOX for 24 h. Cell viability and IC50 values were determined via the CCK-8 assay. Transwell invasion assays were conducted to evaluate the combined effect of 2FF and DOX on the invasion ability of HepG2 cells. Flow cytometry was performed to analyze the impact of 2FF, DOX and their combination on membrane PD-L1 expression of HepG2 cells. To assess the in vivo effect, 6- to 8-week-old female BALB/c mice (20-25 g), were subcutaneously injected with 1×106 CT26 cells into the right axilla (four groups, six mice in each group). After the average tumor volume reached 100 mm3, mice were treated with DOX, 2FF, their combination, or saline (mock group) every other day. DOX was administrated intraperitoneally (2 mg/kg), 2FF intravenously (5 mg/kg), and the combination group, received the both treatment. Tumor size was measured every other day using a vernier caliper. ResultsThis study demonstrated that DOX upregulates the core fucosylation levels in HepG2 and CT26 cells,while 2FF effectively inhibits this DOX-induced effect. Furthermone, 2FF enhanced the sensitivity of HepG2 and CT26 cells to DOX. The combination of 2FF and DOX synergistically inhibited the invasion ability of HepG2 cells, and enhanced the anti-tumor efficacy of CT26 subcutaneous tumor model in BALB/c mice. However the combination treatment led to weight loss in mice. In addition, DOX increased the cell surface PD-L1 expression in HepG2 cells, which was effectively suppressed by 2FF. ConclusionThe FUT8 inhibitor 2FF effectively suppresses DOX-induced upregulation of core fucosylation and PD-L1 levels in tumor cells, and 2FF synergistically enhances the anticancer efficacy of DOX.
2.Dawn of CAR-T cell therapy in autoimmune diseases
Yuxin LIU ; Minghao DONG ; Yunhui CHU ; Luoqi ZHOU ; Yunfan YOU ; Xiaowei PANG ; Sheng YANG ; Luyang ZHANG ; Lian CHEN ; Lifang ZHU ; Jun XIAO ; Wei WANG ; Chuan QIN ; Daishi TIAN
Chinese Medical Journal 2024;137(10):1140-1150
Chimeric antigen receptor (CAR)-T cell therapy has achieved remarkable success in the treatment of hematological malignancies. Based on the immunomodulatory capability of CAR-T cells, efforts have turned toward exploring their potential in treating autoimmune diseases. Bibliometric analysis of 210 records from 128 academic journals published by 372 institutions in 40 countries/regions indicates a growing number of publications on CAR-T therapy for autoimmune diseases, covering a range of subtypes such as systemic lupus erythematosus, multiple sclerosis, among others. CAR-T therapy holds promise in mitigating several shortcomings, including the indiscriminate suppression of the immune system by traditional immunosuppressants, and non-sustaining therapeutic levels of monoclonal antibodies due to inherent pharmacokinetic constraints. By persisting and proliferating in vivo, CAR-T cells can offer a tailored and precise therapeutics. This paper reviewed preclinical experiments and clinical trials involving CAR-T and CAR-related therapies in various autoimmune diseases, incorporating innovations well-studied in the field of hematological tumors, aiming to explore a safe and effective therapeutic option for relapsed/refractory autoimmune diseases.
3.The inhibitory effect of artesunate on hepatocellular carcinoma cells by regulating expression of GADD45A and NACC1
Guan-Tong SHEN ; Jin-Yao DONG ; Jing FENG ; Nan QIN ; Gen-Lai DU ; Fei ZHU ; Ke LIAN ; Xin-Yu LIU ; Qing-Liang LI ; Xun-Wei ZHANG ; Ru-Yi SHI
Chinese Pharmacological Bulletin 2024;40(6):1089-1097
Aim To explore the effect and mechanism of the artesunate(ART)on hepatocellular carcinoma(HCC).Methods The cell lines MHCC-97H and HCC-LM3 were used to be detected.MTT and clone formation were used to determine the cell proliferation;Wound healing was used to detect the cell migration;Transwell was used to test the cell invasion.Flow-cy-tometry was used to detect cell apoptosis and cell cy-cle.RNA-seq and qRT-PCR was used to detect the genes expression.Results The proliferation,migra-tion and invasion of treated cells were obviously inhibi-ted(P<0.01).Moreover,the apoptosis rate in-creased significantly,so did the proportion of G2/M cells.Transcriptomic analysis identified GADD45A as a potential target of ART through RNA-sequencing da-ta,and suggested that ART might induce apoptosis and cell cycle arrest through regulating the expression of GADD45A.In addition,the results of mechanism studies and signaling analysis suggested that GADD45A had interaction with its upstream gene NACC1(nucle-us accumbens associated 1).Moreover,after ART treatment,the expressions of GADD45A and NACC1 were changed significantly.Conclusion ART may be a potential drug to resist HCC by affecting the expres-sion of GADD45A and its upstream gene NACC1,which provides a new drug,a new direction and a new method for the clinical treatment of HCC.
4.Effects of GanoExtra combined with CTX on lung metastasis and immune function in mice
Shu LIAN ; Ting-Jian WU ; Jie CHEN ; Chun-Lian ZHONG ; Yu-Sheng LU ; Ye LI ; Chang-Hui WU ; Kun ZHANG ; Li JIA ; Xiao-Dong XIE
Chinese Pharmacological Bulletin 2024;40(7):1335-1342
Aim To investigate the enhanced efficacy and reduced toxicity of GanoExtra in combination with cyclophosphamide(CTX)on inhibiting lung metastasis and immune function in mice.Methods The CCK-8 method was used to verify the cytotoxic effects of Gano-Extra on MCF-7 and 4T1 tumor cells.In vivo experi-ment,a mouse model of lung metastasis of breast canc-er was established by injecting 4T1 tumor cells into the tail vein,which was divided into four groups including 4T1 model group,CTX group,GanoExtra group and GanoExtra+CTX group.The control group was set.After 21 days,the mice were euthanized under anes-thesia,and the body weight of the mice was recorded.Average lung index and spleen index were calculated.The mouse spleen lymphocyte transformation experi-ment was used to determine the activity of spleen cells.The NK cell activity assay was used to determine the activity of NK cells.Blood cells were determined in mouse blood samples.Flow cytometry was used to de-termine the levels of CD4+and CD8+T cells in blood samples.ELISA was used to measure the levels of TNF-α and IL-6 in serum.HE staining was used to ob-serve the pathological morphological changes in tumors and various tissues;and CFSE staining was used to de-termine the proliferative effect of GanoExtra on CD8+cells.Results In vitro GanoExtra at 50 mg·L-1 sig-nificantly inhibited the activity of MCF-7 and 4T1 tumor cells.In the breast cancer pulmonary metastasis model,compared with the model group,the spleen in-dex and blood WBCs content were significantly re-duced,while the activity of NK cells,spleen cells,and the proportion of RBCs,CD 3+and CD 8+T cells in the blood were significantly increased.At the end of the treatment,compared with the CTX group,the number of lung metastases and lung index of the Gano-Extra+CTX group were significantly reduced,and the levels of HGB,CD8+cells,IL-6,and TNF-α in the blood of mice were significantly increased.GanoExtra at 10 mg·L-1 significantly promoted the proliferation of CD8+T cells in vitro.Conclusions GanoExtra can enhance the inhibitory effect of CTX on tumor metasta-sis,alleviate adverse reactions such as splenomegaly and pulmonary enlargement caused by CTX,and have a health-promoting function of promoting the prolifera-tion of CD8+T cells to enhance the immune efficacy of the body.
5.A novel nomogram-based model to predict the postoperative overall survival in patients with gastric and colorectal cancer
Siwen WANG ; Kangjing XU ; Xuejin GAO ; Tingting GAO ; Guangming SUN ; Yaqin XIAO ; Haoyang WANG ; Chenghao ZENG ; Deshuai SONG ; Yupeng ZHANG ; Lingli HUANG ; Bo LIAN ; Jianjiao CHEN ; Dong GUO ; Zhenyi JIA ; Yong WANG ; Fangyou GONG ; Junde ZHOU ; Zhigang XUE ; Zhida CHEN ; Gang LI ; Mengbin LI ; Wei ZHAO ; Yanbing ZHOU ; Huanlong QIN ; Xiaoting WU ; Kunhua WANG ; Qiang CHI ; Jianchun YU ; Yun TANG ; Guoli LI ; Li ZHANG ; Xinying WANG
Chinese Journal of Clinical Nutrition 2024;32(3):138-149
Objective:We aimed to develop a novel visualized model based on nomogram to predict postoperative overall survival.Methods:This was a multicenter, retrospective, observational cohort study, including participants with histologically confirmed gastric and colorectal cancer who underwent radical surgery from 11 medical centers in China from August 1, 2015 to June 30, 2018. Baseline characteristics, histopathological data and nutritional status, as assessed using Nutrition Risk Screening 2002 (NRS 2002) score and the scored Patient-Generated Subjective Global Assessment, were collected. The least absolute shrinkage and selection operator regression and Cox regression were used to identify variables to be included in the predictive model. Internal and external validations were performed.Results:There were 681 and 127 patients in the training and validation cohorts, respectively. A total of 188 deaths were observed over a median follow-up period of 59 (range: 58 to 60) months. Two independent predictors of NRS 2002 and Tumor-Node-Metastasis (TNM) stage were identified and incorporated into the prediction nomogram model together with the factor of age. The model's concordance index for 1-, 3- and 5-year overall survival was 0.696, 0.724, and 0.738 in the training cohort and 0.801, 0.812, and 0.793 in the validation cohort, respectively.Conclusions:In this study, a new nomogram prediction model based on NRS 2002 score was developed and validated for predicting the overall postoperative survival of patients with gastric colorectal cancer. This model has good differentiation, calibration and clinical practicability in predicting the long-term survival rate of patients with gastrointestinal cancer after radical surgery.
6.Effect of injection volume on clinical efficacy after minimally invasive puncture and drainage in the treatment of moderate basal ganglia cerebral hemorrhage underlying controlling the dosage of drugs in the elderly
Liang WANG ; Wei DONG ; Lian ZHENG ; Jinmiao ZHANG ; Ding YUAN ; Guo CHENG
Chinese Journal of Nervous and Mental Diseases 2024;50(5):268-273
Objective To investigate the effect of injection volume on clinical efficacy after minimally invasive puncture and drainage in the treatment of moderate basal ganglia cerebral hemorrhage underlying controlling the dosage of drugs in the elderly.Methods After successfully inserting the puncture needle into the center point in the largest layer long axis,the liquid hematoma was aspirated,and 40,000 units urokinase was injected into the hematoma cavity twice a day(2 mL in the small volume Group(SG),and 4 mL in the large volume group(LG),respectively).The needle were then adjusted and removed according to the hematoma clearance.The clearance rate of hematoma,intracranial pressure,edema volume,mortality,incidence of complications,neurological deficit score(NDS)and activities of daily living(ADL)were compared and analyzed.Results There were no significant differences in the first hematoma clearance rate,postoperative ICP and mortality between the two groups(P>0.05).Comparing to the SG,there was a relative higher postoperative hematoma clearance rate and lower volume of perihematoma edema in the LG(P<0.05).Meanwhile,the needle retention time,urokinase usage and cumulative complications at 28 days after operation were lower than in the SG(P<0.05).For two parameters representing long-term outcome,the NDS and ADL scores were much better in LG than in SG(P<0.05).Conclusion Large volume injection can effectively drain the hematoma,shorten the needle retention time,reduce the usage of urokinase,decrease the incidence of postoperative complications and improve the prognosis of patients,thereby providing effective and safe method in treating moderate basal ganglia cerebral hemorrhage in the elderly.
7.Analysis of Helicobacter pylori infection in the natural population of Sanya City
Shi-Mei HUANG ; Lian-Guo LAN ; Da-Ya ZHANG ; Run-Xiang CHEN ; Xiao-Dong ZHANG ; Chen CHEN ; Fan ZENG ; Da LI ; Xian-Feng HUANG ; Qi WANG ; Shi-Ju CHEN ; Lei GAO ; Jun-Tao ZENG ; Fei-Hu BAI
Modern Interventional Diagnosis and Treatment in Gastroenterology 2024;29(2):141-145
Objective To explore the current status of H.pylori infection in the natural population of Sanya City,analyze its influencing factors,and provide a reference basis for the prevention and control of H.pylori infection.Methods A total of 677 residents from four districts of Sanya City were selected by overall stratified random sampling method,and were subjected to urea 14C breath test and questionnaire survey to calculate the positive rate of H.pylori in the natural population and analyze the influencing factors of H.pylori infection.Results A total of 606 residents were included,and the number of H.pylori positive detections was 261,with a positive detection rate of 38.5%.Among them,different ethnicity,marital status,smoking,eating vegetables and fruits,and literacy level were associated with H.pylori infection(P<0.05);gender,age,BMI,alcohol consumption,drinking water source,betel quid chewing,and the number of cohabitants were not significantly associated with H.pylori infection(P>0.05).Family infection was an independent risk factor for H.pylori infection in the natural population of Sanya City,and Li ethnicity,frequent consumption of fruits and vegetables,and college and higher education level were independent protective factors for H.pylori infection in the natural population of Sanya City.Conclusion The rate of H.pylori infection in the natural population of Sanya City is lower than the national average.Consuming more fruits and vegetables and improving the awareness of hygiene protection are conducive to the prevention of H.pylori infection;and the promotion of the family and related members with the same examination and treatment is important to avoid aggregation of infection within the family.
8.Research on the quality pre-audit management of the first page of medical records under the back-ground of DRG payment
Xiaohan CHEN ; Chenxue DONG ; Mengtian ZHANG ; Xinyue LIAN ; Minghua ZHANG
Modern Hospital 2024;24(6):874-877,984
Objective This paper discusses the role of pre-audit management in the quality management of the first page of medical records,and studies the feasible measures to improve the quality of the first page of medical records and assist DRG payment.Methods This paper analyzes the new measures to improve the quality of the first page of medical records in an A-Class tertiary hospital in Suzhou,and analyzes the quality of 2 644 medical records discharged during 2023.Results In order to effectively respond to the DRG payment reform,an A-Class tertiary hospital in Suzhou innovatively established a pre-audit man-agement mechanism,and improved the quality of the first page of medical records to a certain extent,but there are still problems such as non-standard filling,inconsistent medical record data and untimely completion of medical record documents.Conclusion The hospital should build consensus,attach importance to the quality management;standardize the filling,ensure the accuracy and completeness;communicate and collaborate,improve the soft and hard power of the hospital;improve the assessment,and optimize the incentive mechanism for the management to improve the quality of the first page of medical records and assist DRG payment.
9.The relationship between TLR4,JAK3 gene expression and Th17/Treg imbalance in peripheral blood of patients with ankylosing spondylitis
Zhiqiang ZHANG ; Weiwei WANG ; Tengjing DONG ; Hongkai LIAN
Tianjin Medical Journal 2024;52(10):1065-1068
Objective To explore the relationship between the expression of Toll like receptor 4(TLR4)and Janus protein tyrosine kinase 3(JAK3)genes and the imbalance of helper T cell 17(Th17)/regulatory T cells(Treg)in peripheral blood mononuclear cells(PBMCs)of patients with ankylosing spondylitis(AS).Methods A total of 101 AS patients were selected as the AS group.According to the AS Disease Activity Index(BASDAI)score,patients were divided into the AS stable phase(ASS)group(<4 points,42 cases)and the AS active phase(ASA)group(≥4 points,59 cases).Additionally,50 healthy volunteers who underwent physical examinations at our hospital during the same period were selected as the control group(health group).Real-time fluorescence quantitative polymerase chain reaction(RT-qPCR)was used to determine the mRNA expression of TLR4 and JAK3 in PBMCs,and the proportion of serum Th17 and Treg was measured and Th17/Treg levels were calculated.Results The levels of TLR4 mRNA and JAK3 mRNA in PBMCs of peripheral blood were higher in the AS group than those in the health group(P<0.05).The levels of Th17,proportion and Th17/Treg in peripheral blood were higher in the AS group than those of the health group(P<0.05).Higher levels of TLR4 mRNA,JAK3 mRNA,Th17,and Th17/Treg were risk factors for AS,while higher level of Treg was protective factors for AS.TLR4 mRNA and JAK3 mRNA in AS patients were positively correlated with Th17 ratio and Th17/Treg ratio,and negatively correlated with Treg ratio(P<0.05).Conclusion TLR4 and JAK3 genes are highly expressed and Th17/Treg is unbalanced in PBMC of AS patients.The high expression of TLR4 and JAK3 genes is closely related to Th17/Treg imbalance in AS patients.
10.Wogonin induces ferroptosis of rat CIA-FLS cells via NRF2/HO-1 sig-naling pathway
Lingfei HE ; Chaofan ZHANG ; Jie LIAN ; Aoxuan SHEN ; Qiannan DONG ; Xiao KANG ; Hao WU
Chinese Journal of Pathophysiology 2024;40(7):1276-1282
AIM:To investigate the mechanism by which wogonin(WOG)induces ferroptosis in collagen-in-duced arthritis rat fibroblast-like synoviocytes(rat CIA-FLS cells)through the nuclear factor E2-related factor 2(NRF2)/heme oxygenase-1(HO-1)signaling pathway.METHODS:Rat CIA-FLS cells were divided into:control group,low,medium,and high dose of(25,50 and 100 μmol/L)WOG group,ferroptosis inhibitor(LIP-1)group,LIP-1+high dose WOG group,HO-1 agonist cobalt protoporphyrin(COPP)group,and COPP+high dose WOG group.CCK-8 assay was used for cell viability.Crystal violet staining was used for for cell morphology.The levels of oxidative stress markers gluta-thione(GSH),malondialdehyde(MDA),and superoxide dismutase(SOD)were measured.DCFH-DA fluorescent probe was used to detect the intracellular reactive oxygen species(ROS)content as well as Western blot to detect the protein ex-pression levels of Kelch-like ECH-associated protein 1(KEAP-1),NRF2 and HO-1.RESULTS:Compared with the nor-mal control group,administration of WOG treatment resulted in a significant decrease in CIA-FLS cell viability(P<0.01),a significant increase in the level of oxidative stress(P<0.01),a significant increase in the content of ROS(P<0.01),a significant decrease in the level of expression of NRF2 and HO-1 proteins(P<0.01),and a significant increase in the level of KEAP-1(P<0.01)in the rat.Compared with the WOG group,the LIP-1-treated group showed a significant increase in cell viability(P<0.01),a significant decrease in the level of oxidative stress(P<0.01),and a significant de-crease in the content of ROS(P<0.01).Compared with the WOG group,the addition of COPP resulted in a significant in-crease in the protein expression levels of NRF2 and HO-1(P<0.01)and a significant decrease in KEAP-1 levels(P<0.01).CONCLUSION:WOG can induce ferroptosis in rat CIA-FLS cells by promoting oxidative stress through the NRF2/HO-1 signaling pathway.

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