1.Rubioncolin C targets cathepsin D to induce autophagosome accumulation and suppress gastric cancer.
Liang ZHANG ; Jun-Jie CHEN ; Man-Xiang GU ; Yi-Fan ZHONG ; Yuan SI ; Ying LIU
China Journal of Chinese Materia Medica 2025;50(5):1267-1275
This study aimed to explore the molecular mechanism of rubioncolin C(RuC) in inhibiting gastric cancer(GC). AGS and MGC803 cell lines were selected as cellular models. After treating the cells with RuC at different concentrations, the effects of RuC on the proliferation ability of GC cells were assessed using the CCK-8 method, real-time cellular analysis(RTCA), and colony formation assays. Transmission electron microscopy was used to observe subcellular structural changes. Immunofluorescence was applied to detect LC3 fluorescent foci. Acridine orange staining was used to evaluate the state of intracellular lysosomes. Western blot was employed to detect the expression of autophagy-related proteins LC3Ⅱ, P62, and lysosomal cathepsin D(CTSD). The SuperPred online tool was used to predict the target proteins that bound to RuC, and molecular docking analysis was conducted to identify the interaction sites between RuC and CTSD. The drug affinity responsive target stability(DARTS) assay was performed to detect the direct binding interaction between RuC and CTSD. The results showed that RuC significantly inhibited the proliferation and colony formation of GC cells at low concentrations, with 24-hour half-maximal inhibitory concentrations(IC_(50)) of 3.422 and 2.697 μmol·L~(-1) for AGS and MGC803 cells, respectively. After 24 hours of treatment with RuC at concentrations of 1, 2, and 3 μmol·L~(-1), the colony formation rates for AGS cells were 61.0%±1.5%, 28.0%±0.5%, and 18.2%±0.5%, respectively, while the rates for MGC803 cells were 56.0%±0.5%, 23.3%±1.0%, and 11.8%±1.0%, all of which were significantly reduced. Transmission electron microscopy revealed that RuC promoted an increase in autophagosome formation in GC cells. Immunofluorescence detection showed that LC3 fluorescent foci of GC cells increased with the increase in RuC dose. RuC up-regulated the expression of autophagy-related proteins LC3Ⅱ and P62 in GC cells. Acridine orange staining indicated that RuC altered the acidic environment of lysosomes. SuperPred online prediction identified CTSD as a potential target protein of RuC. Western blot analysis revealed that RuC induced the up-regulation of the inactive precursor of CTSD in GC cells. CTSD activity assays indicated that RuC reduced the activity of CTSD. Molecular docking simulations found that RuC bound to the substrate-binding region of CTSD, forming hydrogen bonds with the Tyr205 and Asp231 residues. Microscale thermophoresis and DARTS assays further confirmed that RuC directly bound to CTSD. In summary, RuC inhibits lysosomal activity by targeting and down-regulating the expression of CTSD, thereby inducing autophagosome accumulation in GC cells.
Humans
;
Stomach Neoplasms/enzymology*
;
Cathepsin D/chemistry*
;
Cell Line, Tumor
;
Molecular Docking Simulation
;
Cell Proliferation/drug effects*
;
Autophagosomes/metabolism*
;
Autophagy/drug effects*
2.Current situation of clinical trial registration in acupuncture anesthesia: A scoping review.
Yue LI ; You-Ning LIU ; Zhen GUO ; Mu-En GU ; Wen-Jia WANG ; Yi ZHU ; Xiao-Jun ZHUANG ; Li-Ming CHEN ; Jia ZHOU ; Jing LI
Journal of Integrative Medicine 2025;23(3):256-263
BACKGROUND:
Modern acupuncture anesthesia is a combination of Chinese and Western medicine that integrates the theories of acupuncture with anesthesia. However, some clinical studies of acupuncture anesthesia lack specific descriptions of randomization, allocation concealment, and blinding processes, with subsequent systematic reviews indicating a risk of bias.
OBJECTIVE:
Clinical trial registration is essential for the enhancement of the quality of clinical trials. This study aims to summarize the status of clinical trial registrations for acupuncture anesthesia listed on the World Health Organization International Clinical Trials Registry Platform (ICTRP).
SEARCH STRATEGY:
We searched the ICTRP for clinical trials related to acupuncture anesthesia registered between January 1, 2001 and May 31, 2023. Additionally, related publications were retrieved from PubMed, Cochrane Library, Embase, China National Knowledge Infrastructure, China Science and Technology Journal Database, and Wanfang Data. Registrations and publications were analyzed for consistency in trial design characteristics.
INCLUSION CRITERIA:
Clinical trials that utilized one of several acupuncture-related therapies in combination with pharmacological anesthesia during the perioperative period were eligible for this review.
DATA EXTRACTION AND ANALYSIS:
Data extracted from articles included type of surgical procedure, perioperative symptoms, study methodology, type of intervention, trial recruitment information, and publication information related to clinical enrollment.
RESULTS:
A total of 166 trials related to acupuncture anesthesia from 21 countries were included in the analysis. The commonly reported symptoms in the included studies were postoperative nausea and vomiting (19.9%) and postoperative pain (13.3%). The concordance between the publications and the trial protocols in the clinical registry records was poor, with only 31.7% of the studies being fully compatible. Inconsistency rates were high for sample size (39.0%, 16/41), blinding (36.6%, 15/41), and secondary outcome indicators (24.4%, 10/41).
CONCLUSION
The volume of acupuncture anesthesia clinical trials registered in international trial registries over the last 20 years is low, with insufficient disclosure of results. Postoperative nausea and vomiting as well as postoperative pain, are the most investigated for acupuncture intervention. Please cite this article as: Li Y, Liu YN, Guo Z, Gu ME, Wang WJ, Zhu Y, Zhuang XJ, Chen LM, Zhou J, Li J. Current situation of clinical trial registration in acupuncture anesthesia: A scoping review. J Integr Med. 2025; 23(3): 256-263.
Humans
;
Acupuncture Analgesia
;
Acupuncture Therapy
;
Anesthesia
;
Clinical Trials as Topic
;
Registries
3.Analysis of differences in the quality of bowel preparation in patients of different age groups undergoing colonoscopy and measures for improvement
Jun GU ; Yan-Yan ZHU ; Jun-Wei ZOU ; Yi-Gui HUANG
Modern Interventional Diagnosis and Treatment in Gastroenterology 2024;29(6):653-659
Objective To explore improvements in bowel preparation for patients of different ages by analyzing the factors influencing differences in the quality of bowel preparation for patients undergoing colonoscopy.Methods One hundred and forty-eight patients who underwent colonoscopy in our hospital from January 2022 to June 2023 were selected and divided into adequate(n=106)and inadequate(n=42)groups based on the Ottawa bowel preparation scale scoring criteria,and into young(n=41),middle-aged(n=91),and elderly(n=16)groups based on the age of the patients,with higher than the median age being considered as the high age patients and lower than the median age as the low age patients.Clinical data were collected,logistic regression was used to analyze the factors affecting the quality of bowel preparation,and multivariate regression was used to analyze the risk factors for inadequate bowel preparation in patients of different age strata.Results The overall pass rate of bowel preparation in 148 patients was 71.62%.The middle-aged group was significantly lower than the young group(x2=7.392,P=0.007).The ①-segment colon OBPS scores(sigmoid colon and rectum),②-segment colon OBPS scores(descending colon and transverse colon),and ③-segment colon OBPS scores(cecum and ascending colon)were lower in the senior patients than in the younger patients(all P<0.05).Age,constipation,bowel cleanser dose<75%,solid residue in the last bowel movement,and waiting>6 hours for microscopy were independent risk factors for inadequate bowel preparation.After adjusting for age,having solid residue in the last bowel movement,and waiting>8 hours for microscopy were risk factors for inadequate bowel preparation in the young group of patients.Constipation,bowel cleanser dose<75%,solid residue in the last bowel movement and waiting time for microscopy were risk factors for inadequate bowel preparation in patients in the middle-aged group.The risk effect value of waiting>8 hours for microscopy was higher than waiting 6 to 8 hours for microscopy(OR=3.657 and OR=1.215,all P<0.05).Conclusion Age is a risk factor for the quality of bowel preparation in patients undergoing colonoscopy,and different bowel preparation strategies should be used for different age groups.
4.Superior vena cava syndrome and pulmonary artery stenosis in a patient with lung metastases of bladder cancer
Jian-Ke LI ; Ya-Nan GU ; Jun-Hao LI ; Liang-Wen WANG ; Ning-Zi TIAN ; Wei CHEN ; Xiao-Lin WANG ; Yi CHEN
Fudan University Journal of Medical Sciences 2024;51(2):277-279,284
Superior vena cava syndrome(SVCS)is a group of clinical syndromes caused by obstruction of the superior vena cava and its major branches from various causes.Pulmonary artery stenosis(PS)is a complication of lung cancer or mediastinal tumours.SVCS combined with PS due to pulmonary metastases from bladder cancer is extremely rare and has not been reported in the literature.Here we reported an old male patient with pulmonary metastases from bladder cancer presenting with swelling of the head,neck and both upper limbs.SVCS combined with PS was clarified by pulmonary artery computed tomography angiography(CTA)and digital subtraction angiography(DSA).Endovascular stenting was used to treat SVCS.Angiography also showed that PS had not caused pulmonary hypertension and did not need to be treated.The swelling of the patient's head,neck and upper limbs was gradually reduced after the procedure.
5.Research and determination of related substances in flumazenil
Xue-yan MIAO ; Yuan YANG ; Si-si LU ; Jin-mei MO ; Lin-kai HUANG ; Jia-jun WEI ; Yi-ping GU
Acta Pharmaceutica Sinica 2024;59(6):1765-1772
A high performance liquid chromatography (HPLC) method utilizing correction factors was established for the quantitative detection of related substances in flumazenil. Separation was achieved using an Agilent Pursuit XRs C18 column (250 mm × 4.6 mm, 5 μm) with an isocratic elution of dilute phosphoric acid, methanol, and tetrahydrofuran as the mobile phases. Correction factors calculated from a standard curve method were applied to determine the impurity content. The quantification of impurities in flumazenil was conducted using both external standard and correction factor methods, followed by validation and comparison of the two. For the identification of degradation products, a forced degradation approach was employed to prepare a flumazenil degradation solution, and the resulting impurities were confirmed by LC-MS analysis. The separation of flumazenil and its impurities was found to be efficient. The limits of quantification for impurities A, B, D, and E were established at 0.169 9, 0.314 7, 0.143 9, and 0.270 8 ng, respectively, with the limits of detection at 0.055 8, 0.096 9, 0.048 8, and 0.089 0 ng. These impurities demonstrated a strong linear relationship across the concentration ranges of 0.034 9-7.847 0, 0.038 7-8.710 7, 0.034 6-7.794 1, and 0.032 4-7.292 8 µg·mL-1, respectively (
6.Optimized expression of the diphtheria toxin mutant CRM197 in Escherichia coli and population analysis of serum antibody levels
Xiao-Li CHEN ; Yi-Xin GU ; Hai-Rui WANG ; Gui-Lan ZHOU ; Xin ZHANG ; Chang LIU ; Jian-Zhong ZHANG ; Zhu-Jun SHAO ; Mao-Jun ZHANG
Chinese Journal of Zoonoses 2024;40(5):430-434
A prokaryotic expression vector for the mutant diphtheria toxin CRM197 was constructed and expressed in Esch-erichia coli cells.Anti-CRM197 antibody concentrations were detected in serum samples of healthy volunteers.The crm 197 gene was codon-optimized in E.coli and cloned into the plasmid pET28a(+)under optimized expression conditions.CRM197 was purified using Ni-NTA spin columns and ion exchange chromatography,and confirmed by western blot analysis.The puri-fied CRM197 was used to detect specific anti-CRM197 antibody levels in serum samples of different age groups.The results showed that soluble codon-optimized CRM197 was successfully expressed under optimized expression conditions.The purity of CRM197 was more than 95%,as determined with Ni-NTA spin columns and ion exchange chromatography,consistent with the single specific bands obtained by western blot analysis and detection of serum levels of the anti-CRM197 antibody.Collec-tively,these results confirmed that the proposed expression strategy achieved high-yield production of soluble CRM197,al-though high levels in human serum may affect evaluation of immune interactions with glycan-CRM197 conjugates for applica-tion as a diagnostic antigen.The diphtheria mutant toxin CRM197 is used in many conjugate vaccines.The synthetic crm 197 gene with codon optimization in pET28a was transformed into E.coli Origami B(DE3)cells.CRM197 was induced by isopro-pyl β-d-1-thiogalactopyranoside and high level accumulation of soluble CRM197 was purified using Ni-NTA spin columns and ion exchange chromatography.The purity of the final prepara-tion reached 95%.CRM197 was used to detect the concentra-tions of the anti-CRM197 antibody in serum samples of healthy volunteers of different ages.The proposed expression strategy yielded high production of CRM197,which could interfere with evaluations of induced immune interactions by glycan-CRM197 conjugates and prohibit application as a diagnostic antigen.
7.Advances in bee venom research:novel drug candidate library for the treatment of inflammatory skin diseases
Qiang WU ; Yue YANG ; Peng LI ; Jiajie GU ; Degang DONG ; Jun YI
Chinese Journal of Comparative Medicine 2024;34(8):148-155,166
Inflammatory skin diseases(ISD)are characterized by persistent inflammatory cell infiltration and lingering and intractable skin lesions.At present,corticosteroids are the main drugs used in the treatment of ISD.However,due to the characteristics of recurrent and intractable ISD,long-term use of these hormone drugs may cause serious side effects in patients.In recent years,increasingly more studies are confirming that bee venom has significant anti-inflammatory,anti-apoptosis,anti-fibrosis,antibacterial,and other effects and could effectively treat ISD.In this paper,the main active components and anti-inflammatory mechanisms of bee venom are reviewed.The latest attempts to use bee venom for acne,atopic dermatitis,psoriasis,urticaria,and systemic lupus erythematosus are discussed,providing a reference for basic research and the clinical treatment of ISD.
8.Korean Thyroid Association Guidelines on the Management of Differentiated Thyroid Cancers; Overview and Summary 2024
Young Joo PARK ; Eun Kyung LEE ; Young Shin SONG ; Bon Seok KOO ; Hyungju KWON ; Keunyoung KIM ; Mijin KIM ; Bo Hyun KIM ; Won Gu KIM ; Won Bae KIM ; Won Woong KIM ; Jung-Han KIM ; Hee Kyung KIM ; Hee Young NA ; Shin Je MOON ; Jung-Eun MOON ; Sohyun PARK ; Jun-Ook PARK ; Ji-In BANG ; Kyorim BACK ; Youngduk SEO ; Dong Yeob SHIN ; Su-Jin SHIN ; Hwa Young AHN ; So Won OH ; Seung Hoon WOO ; Ho-Ryun WON ; Chang Hwan RYU ; Jee Hee YOON ; Ka Hee YI ; Min Kyoung LEE ; Sang-Woo LEE ; Seung Eun LEE ; Sihoon LEE ; Young Ah LEE ; Joon-Hyop LEE ; Ji Ye LEE ; Jieun LEE ; Cho Rok LEE ; Dong-Jun LIM ; Jae-Yol LIM ; Yun Kyung JEON ; Kyong Yeun JUNG ; Ari CHONG ; Yun Jae CHUNG ; Chan Kwon JUNG ; Kwanhoon JO ; Yoon Young CHO ; A Ram HONG ; Chae Moon HONG ; Ho-Cheol KANG ; Sun Wook KIM ; Woong Youn CHUNG ; Do Joon PARK ; Dong Gyu NA ;
International Journal of Thyroidology 2024;17(1):1-20
Differentiated thyroid cancer demonstrates a wide range of clinical presentations, from very indolent cases to those with an aggressive prognosis. Therefore, diagnosing and treating each cancer appropriately based on its risk status is important. The Korean Thyroid Association (KTA) has provided and amended the clinical guidelines for thyroid cancer management since 2007. The main changes in this revised 2024 guideline include 1) individualization of surgical extent according to pathological tests and clinical findings, 2) application of active surveillance in low-risk papillary thyroid microcarcinoma, 3) indications for minimally invasive surgery, 4) adoption of World Health Organization pathological diagnostic criteria and definition of terminology in Korean, 5) update on literature evidence of recurrence risk for initial risk stratification, 6) addition of the role of molecular testing, 7) addition of definition of initial risk stratification and targeting thyroid stimulating hormone (TSH) concentrations according to ongoing risk stratification (ORS), 8) addition of treatment of perioperative hypoparathyroidism, 9) update on systemic chemotherapy, and 10) addition of treatment for pediatric patients with thyroid cancer.
9.Efficacy and safety of various doses of hybutimibe monotherapy or in combination with atorvastatin for primary hypercholesterolemia: a multicenter, randomized, double-blind, double-dummy, parallel-controlled phase Ⅲ clinical trial.
Si Yu CAI ; Xiang GU ; Pei Jing LIU ; Rong Shan LI ; Jian Jun JIANG ; Shui Ping ZHAO ; Wei YAO ; Yi Nong JIANG ; Yue Hui YIN ; Bo YU ; Zu Yi YUAN ; Jian An WANG
Chinese Journal of Cardiology 2023;51(2):180-187
Objective: To evaluate the efficacy and safety of hybutimibe monotherapy or in combination with atorvastatin in the treatment of primary hypercholesterolemia. Methods: This was a multicenter, randomized, double-blind, double-dummy, parallel-controlled phase Ⅲ clinical trial of patients with untreated primary hypercholesterolemia from 41 centers in China between August 2015 and April 2019. Patients were randomly assigned, at a ratio of 1∶1∶1∶1∶1∶1, to the atorvastatin 10 mg group (group A), hybutimibe 20 mg group (group B), hybutimibe 20 mg plus atorvastatin 10 mg group (group C), hybutimibe 10 mg group (group D), hybutimibe 10 mg plus atorvastatin 10 mg group (group E), and placebo group (group F). After a dietary run-in period for at least 4 weeks, all patients were administered orally once a day according to their groups. The treatment period was 12 weeks after the first dose of the study drug, and efficacy and safety were evaluated at weeks 2, 4, 8, and 12. After the treatment period, patients voluntarily entered the long-term safety evaluation period and continued the assigned treatment (those in group F were randomly assigned to group B or D), with 40 weeks' observation. The primary endpoint was the percent change in low density lipoprotein cholesterol (LDL-C) from baseline at week 12. Secondary endpoints included the percent changes in high density lipoprotein cholesterol (HDL-C), triglyceride (TG), apolipoprotein B (Apo B) at week 12 and changes of the four above-mentioned lipid indicators at weeks 18, 24, 38, and 52. Safety was evaluated during the whole treatment period. Results: Totally, 727 patients were included in the treatment period with a mean age of (55.0±9.3) years old, including 253 males. No statistical differences were observed among the groups in demographics, comorbidities, and baseline blood lipid levels. At week 12, the percent changes in LDL-C were significantly different among groups A to F (all P<0.01). Compared to atorvastatin alone, hybutimibe combined with atorvastatin could further improve LDL-C, TG, and Apo B (all P<0.05). Furthermore, there was no significant difference in percent changes in LDL-C at week 12 between group C and group E (P=0.991 7). During the long-term evaluation period, there were intergroup statistical differences in changes of LDL-C, TG and Apo B at 18, 24, 38, and 52 weeks from baseline among the statins group (group A), hybutimibe group (groups B, D, and F), and combination group (groups C and E) (all P<0.01), with the best effect observed in the combination group. The incidence of adverse events was 64.2% in the statins group, 61.7% in the hybutimibe group, and 71.0% in the combination group during the long-term evaluation period. No treatment-related serious adverse events or adverse events leading to death occurred during the 52-week study period. Conclusions: Hybutimibe combined with atorvastatin showed confirmatory efficacy in patients with untreated primary hypercholesterolemia, which could further enhance the efficacy on the basis of atorvastatin monotherapy, with a good overall safety profile.
Male
;
Humans
;
Middle Aged
;
Atorvastatin/therapeutic use*
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use*
;
Hypercholesterolemia/drug therapy*
;
Cholesterol, LDL/therapeutic use*
;
Anticholesteremic Agents/therapeutic use*
;
Treatment Outcome
;
Triglycerides
;
Apolipoproteins B/therapeutic use*
;
Double-Blind Method
;
Pyrroles/therapeutic use*
10.Association between Serum Uric Acid and the Early Marker of Kidney Function Decline among Chinese Middle-Aged and Older Population: Evidence from the China Health and Retirement Longitudinal Study.
Xu TANG ; Lu XU ; Ruo Gu MENG ; Yi Qing DU ; Shi Jun LIU ; Si Yan ZHAN ; Tao XU
Biomedical and Environmental Sciences 2023;36(3):231-240
OBJECTIVE:
To evaluate the association between serum uric acid (SUA) and kidney function decline.
METHODS:
Data was obtained from the China Health and Retirement Longitudinal Study on the Chinese middle-aged and older population for analysis. The kidney function decline was defined as an annual estimated glomerular filtration rate (eGFR) decrease by > 3 mL/min per 1.73 m 2. Multivariable logistic regression was applied to determine the association between SUA and kidney function decline. The shape of the association was investigated by restricted cubic splines.
RESULTS:
A total of 7,346 participants were included, of which 1,004 individuals (13.67%) developed kidney function decline during the follow-up of 4 years. A significant dose-response relation was recorded between SUA and the kidney function decline ( OR 1.14, 95% CI 1.03-1.27), as the risk of kidney function decline increased by 14% per 1 mg/dL increase in SUA. In the subgroup analyses, such a relation was only recorded among women ( OR 1.22, 95% CI 1.03-1.45), those aged < 60 years ( OR 1.22, 95% CI 1.05-1.42), and those without hypertension and without diabetes ( OR 1.22, 95% CI 1.06-1.41). Although the dose-response relation was not observed in men, the high level of SUA was related to kidney function decline ( OR 1.83, 95% CI 1.05-3.17). The restricted cubic spline analysis indicated that SUA > 5 mg/dL was associated with a significantly higher risk of kidney function decline.
CONCLUSION
The SUA level was associated with kidney function decline. An elevation of SUA should therefore be addressed to prevent possible kidney impairment and dysfunction.
Aged
;
Female
;
Humans
;
Male
;
Middle Aged
;
China/epidemiology*
;
East Asian People
;
Glomerular Filtration Rate
;
Kidney/physiopathology*
;
Longitudinal Studies
;
Risk Factors
;
Uric Acid/blood*

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