1.Association between intestinal barrier disruption in liver failure and the cGAS-STING signaling pathway
Qiao TANG ; Chao ZHOU ; Ning ZHANG ; Man GONG
Journal of Clinical Hepatology 2025;41(3):574-579
Liver failure is a common severe syndrome of liver diseases with high mortality. The function and structural integrity of the intestinal barrier as an entity are closely associated with the development and progression of liver failure. The cGAS-STING signaling pathway can participate in innate immune response by recognizing DNA produced by pathogen invasion and host cell damage and inducing the production of type I interferon. Numerous studies have shown that activation of the cGAS-STING pathway can significantly impact the cellular structure, mucosal components, and commensal bacteria of the intestinal barrier. This article reviews the interplay between the cGAS-STING signaling pathway and intestinal barrier disruption in liver failure, in order to provide novel insights for the clinical management of liver failure.
2.Establishment and Implementation of Post-marketing Benefit-risk Assessment Strategy for Traditional Chinese Medicine
Meng QIAO ; Wenxi PENG ; Qiang ZHANG ; Chao LEI ; Yanming XIE ; Zhifei WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(18):253-260
The field of post-marketing benefit-risk assessment for traditional Chinese medicine(TCM) is still in its nascent stage, lacking a universally accepted and cohesive evaluation framework and standards. This study presented a strategy developed for the benefit-risk assessment of post-marketing of TCM, and explored the critical techniques and specific implementation steps involved in the assessment process. Initially, appropriate qualitative assessment frameworks and quantitative analysis models were selected for the integrated qualitative and quantitative benefit-risk assessment. Subsequently, key technologies were outlined, including the establishment of a benefit-risk indicator system, the assignment of indicator weights, and the definition of criteria attributes. Furthermore, the implementation steps were elaborated, which involved defining decision-making issues, data collection, evaluation methodologies, variability factors, and sensitivity analysis. Finally, a case study of the benefit-risk assessment of a TCM injection for hepatitis B treatment was conducted to validate the feasibility of the proposed strategy. The objective of this research was to provide theoretical support and practical references for the development of a comprehensive post-marketing benefit-risk assessment system for TCM.
3.Construction of Evidence Body for Revision of Safety Information on Package Inserts of Chinese Patent Medicines in Post-marketing: Taking Xiaoke'an Capsules as an Example
Zijia CHEN ; Meng QIAO ; Chao LEI ; Zhifei WANG ; Yanming XIE
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(10):217-224
ObjectiveTo construct the evidence body for revision of safety information on package inserts of Chinese patent medicines in post-marketing by taking Xiaoke'an capsules as an example, so as to provide reference for the revision of instructions of Chinese patent medicines in post-marketing. MethodThe construction of the evidence body was guided by the theory of traditional Chinese medicine(TCM) and the Technical Guiding Principles for Revision of Safety Information Items in Instructions for TCMs After Marketing, and 8 categories and 25 specific items were taken as the main body of the evidence body, and information inclusion, integration, screening and improvement were carried out, then expert demonstrations were conducted, and finally modifications were made based on the opinions of the Center for Drug Evaluation to complete the revision of the safety information in the instructions of Xiaoke'an capsules. Result[Adverse reactions] of Xiaoke'an capsules was revised to "monitoring data show that the following adverse reactions can be seen with this product:individual hypoglycemic reaction reports". [Contraindications] was revised to "contraindicated for those allergic to this product and its ingredients". [Precautions] was revised to "(1)pregnant women should use with caution, (2)elderly people should consult a physician, (3)people with spleen deficiency and dampness, spleen and stomach deficiency and cold, or those who eat less and have diarrhea should use with caution, (4)this product contains ginseng, should not be taken at the same time with TCM prescriptions or patent medicines containing veratrum and Wulingzhi, (5)pay attention to monitoring blood sugar during medication, (6)if any other discomfort occurs during medication, you should seek medical attention in time". The warning was revised to "use with caution by pregnant women, and pay attention to regular monitoring of blood sugar". ConclusionIn accordance with the content and process of the evidence body for the revision of safety information in the instructions, the revision of the safety information in the instructions of Xiaoke'an capsules has been completed, providing a strong basis for the rational and safe use of medication in the clinic.
4.Improvement effect and mechanism of sanguinarine on inflammatory pain in rats with lumbar disc herniation
Zhen RUAN ; Shenghua HE ; Xuehua GONG ; Song QIAO ; Chao WANG
China Pharmacy 2024;35(9):1087-1093
OBJECTIVE To study the improvement effect and mechanism of sanguinarine (SG) on inflammatory pain in rats with lumbar disc herniation (LDH) and its mechanism. METHODS LDH model rats were established and divided into model group, SG low-dose, medium-dose and high-dose groups (1.00, 2.50, 6.25 mg/kg), high-dose of SG+Anisomycin [mitogen-activated protein kinase (MAPK) activator] group (6.25 mg/kg SG+5 mg/kg Anisomycin), with 10 rats in each group. Another 10 rats were included as the control group. Each group was given corresponding drugs intraperitoneally, while the control group and model group were given an equal volume of normal saline intraperitoneally, once a day, for 7 consecutive days. The general situation and neurological changes of rats in each group were observed, and the pain threshold [including paw withdrawal mechanical threshold (PWMT) and paw withdrawal thermal latency (PWTL)] of rats was determined; the histopathological changes of dorsal root ganglion (DRG) were observed in rats. The serum levels of inflammatory factors [tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β)] and pain factors [neuropeptide Y (NPY), 5-hydroxytryptamine (5-HT)] in rats were detected.The positive expressions of ionized-calcium binding adaptor molecule-1 (Iba-1) in spinal cord microglia and glial fibrillary acidic protein (GFAP) in astrocytes were observed. The expressions of proteins related to MAPK/extracellular signal-regulated kinase (ERK)/nuclear factor κB (NF-κB) signaling pathway, TNF-α and IL-1β proteins were detected in DRG tissue of rats. RESULTS Compared with the control group, the rats in the model group showed decreased appetite, hindlimb movement disorders, and disordered neuronal cell arrangement, the neurological score, the levels of TNF-α, IL-1β, NPY, the positive expressions of Iba-1 and GFAP, the phosphorylations of p38 MAPK, ERK1/2 and NF-κB p65, the protein expressions of TNF-α and IL-1β were significantly increased (P<0.05); PWMT, PWTL and the levels of 5-HT were significantly reduced (P<0.05). Compared with the model group, the rats of SG groups showed some relief in their mental appetite and hindlimb motor disorders, the intervertebral disc structure of DRG was restored, and the levels of the above quantitative indicators had significantly reversed (P<0.05). Anisomycin reversed the improvement effect of SG on inflammatory pain in LDH rats. CONCLUSIONS SG can improve inflammatory pain by inhibiting the activation of microglia in DRG tissue of LDH rats, reducing the release of inflammatory factors, and increasing pain threshold, and its mechanism of action may be related to the inhibition of MAPK/ERK/NF- κB signaling pathway.
5.New interpretation of the theoretical connotation of the correspondence between prescription and syndrome from the longitudinal perspective of"traditional Chinese medicine state"
Shijie QIAO ; Chao FU ; Ziyao CAI ; Wen TANG ; Zhanglin WANG ; Zhibin WANG ; Kang TONG ; Mingzhu LI ; Hairui HAN ; Duoduo LIN ; Shaodong ZHANG ; Huangwei LEI ; Yang WANG ; Candong LI
Journal of Beijing University of Traditional Chinese Medicine 2024;47(6):760-764
The correspondence between prescription and syndrome is the advantage and characteristic of traditional Chinese medicine(TCM)treatment.However,the pathogenesis of clinical diseases is complex and the condition is changeable,and the clinical application is difficult to achieve the maximum effect under the existing cognition of the correspondence between prescription and syndrome.In this paper,the five categories of physiological characteristics,pathological characteristics,constitution,syndrome,and disease of the longitudinal classification of"TCM state"are introduced into the correspondence of prescription and syndrome.Under the vertical perspective of"TCM state",the theoretical connotation of the correspondence between prescription and syndrome is interpreted as"correspondence between prescription and state",namely correspondence of"prescription-physiological characteristics",correspondence of"prescription-pathological characteristics",correspondence of"prescription-constitution",correspondence of"prescription-syndrome",and correspondence of"prescription-disease".It is hoped to accurately grasp the corresponding connotation of the correspondence between prescription and syndrome,in order to deepen the clinical thinking mode of TCM.
6.Effect of silencing MPZL1 on tumor cell stemness and drug resistance of A549 / Tax cells via β-catenin signaling
Chao Zang ; Qiao Ge ; Chao Li ; Haining Hong ; Wei Li
Acta Universitatis Medicinalis Anhui 2024;59(1):99-105
Objective :
To explore the effect of MPZL1 knockdown in A549 Taxol resistant (A549 / Tax) cells and whether it affect drug resistance and tumor cell stemness by regulating β-catenin.
Methods :
A549 and A549 / Tax cells were treated with different concentrations of doxorubicin and paclitaxel to observe the differences in drug resist- ance between the two cells.Quantitative real-time PCR (qRT-PCR) and Western blot were used to detect the MP- ZL1 expression level in A549 and A549 / Tax cells. After knockdown or overexpression of MPZL1 in A549 / Tax cells,cells were divided into control group,small hairpin RNA negative control ( sh-NC) group,MPZL1 knock- down(sh-MPZL1) group,overexpression negative control ( OE-NC) group,MPZL1 overexpression ( OE-MPZL1) group.Cell counting kit-8 ( CCK-8 ) and clone formation assay were utilized to investigate cell proliferation and clone formation ablity.Western blot assay was used to detect the protein expression after the cells treated with Wnt / β-catenin signaling inhibitor XAV939 and activator CHIR-99201 .
Results :
The half inhibitory concentration ( IC50 ) of doxorubicin and paclitaxel in A549 / Tax cells significantly increased compared to A549 cells(P<0. 01) . MPZL1 presented a higher expression trend in A549 / Tax cells.The IC50 values of A549 / Tax for doxorubicin and paclitaxel were 2. 731 mg / ml and 4. 939 μg / ml after MPZL1 knockdown,compared to 4. 541 mg / ml and 13. 55 μg / ml in the NC group (P<0. 01) .The results of CCK-8 and clone formation assay showed that the knockdown of MPZL1 reduced the viability of cells proliferation and clonal formation ability (P<0. 05) .Western blot results in- dicated that the expression levels of MPZL1 protein,tumor cell stemness associated proteins ( CD44,CD133) ,β - catenin and multidrug resistance protein 1 (MDR1) ,lung resistance-related protein ( LRP) were significantly re- duced in the sh-MPZL1 group. Furthermore ,XAV939 could inhibit the expression levels of MPZL1 ,CD44, CD133,MDR1,LRP and β-catenin(P<0. 01) .The inhibitory effect of knockdown MPZL1 on the aforementioned proteins was significantly reversed by CHIR-99201 treatment.
Conclusion
MPZL1 is highly expressed in A549 / Tax cells.Knockdown MPZL1 suppresses the tumor cell stemness and proliferation,thereby reversing the drug re- sistance of doxorubicin and paclitaxel in A549 / Tax cells.
7.General considerations for quality control of recombinant protein PEGylation drug production
Rong LIU ; Wu-Chao LI ; Jing-Feng HU ; Xiao-Hong LU ; Qiao-Qiao FENG
The Chinese Journal of Clinical Pharmacology 2024;40(4):629-632
Polyethylene glycosylation(PEGylation)of recombinant protein drugs are modified by PEG.To preserve the biological activity of the prototype recombinant protein,it overcomes the drawbacks of fast metabolism,poor stability,and the need for multiple doses of the prototype protein in vivo,but also has specificity.In the case of limited guidelines for quality control,discussions are conducted on the control of raw materials used in production,process control during production,quality control of intermediate and final products,stability research,and other aspects,in order to provide reference for the control and development of recombinant protein PEGylation drugs.
8.Application strategy of the"You Gu Wu Yun"theory to reduce the toxicity of traditional Chinese medicine from the perspective of"traditional Chinese medicine state"
Shijie QIAO ; Zongchen WEI ; Ziyao CAI ; Chao FU ; Shunan LI ; Zhanglin WANG ; Liqing HUANG ; Kang TONG ; Wen TANG ; Zhibin WANG ; Hairui HAN ; Duoduo LIN ; Shaodong ZHANG ; Huangwei LEI ; Yang WANG ; Candong LI
Journal of Beijing University of Traditional Chinese Medicine 2024;47(11):1506-1511
Based on the"You Gu Wu Yun"theory in traditional Chinese medicine(TCM),this paper believes that"Gu"in"You Gu Wu Yun"is extended to"state"from the perspective of"TCM state".In order to avoid the adverse reactions of TCM,the macro,meso,and micro three views should be used together,and macro,meso,and micro parameters should be integrated.We should also carefully identify the physiological characteristics,pathological characteristics,constitution,syndrome,and disease of human body by combining qualitative and quantitative method,highlighting the relationship between the prescription and the"state".The correspondence between prescription and the"state"will reduce the risk of adverse reactions of TCM.In this paper,we hope to focus on the guiding role of the"You Gu Wu Yun"theory in TCM research,to give full play to the characteristics and advantages of TCM,and to dialectically treat the role of TCM.
9.Application of miniprobe endoscopic ultrasound in endoscopic surgery of small-diameter and low-grade rectum neuroendocrine neoplasm
Jian-Jun LI ; Chao-Qiang FAN ; Xin YANG ; Xue PENG ; Hao LIN ; Xu-Biao NIE ; Shi-Ming YANG ; Qiu-Jian QIAO ; Jian-Ying BAI
Journal of Regional Anatomy and Operative Surgery 2024;33(1):59-62
Objective To evaluate the value of miniprobe endoscopic ultrasound(EUS)in guiding endoscopic treatment of small-diameter(maximum diameter less than 1 cm)and low-grade(G1 grade)rectum neuroendocrine neoplasm(R-NEN),and to provide evidence and clues for its clinical application and further research.Methods The clinical data of 85 cases of low-grade(G1 grade)R-NEN with a maximum diameter of less than 1 cm who underwent endoscopic treatment in our center from January 2014 to December 2020 were retrospectively analyzed.The patients were divided into the EUS group(37 cases)and control group(48 cases)according to whether EUS was performed before endoscopic treatment.The positive rate of incision margin,the incidence of complications,the recurrence rate,the hospital stay,the cost of hospitalization and endoscopic therapy were compared between the two groups.Results The positive rate of incision margin in the EUS group was significantly lower than that in control group(P<0.05).There was no significant difference in the incidence of complications,tumor recurrence rate,hospital stay or hospital costs between the two groups(P>0.05).There was statistically significant difference in the endoscopic therapy between the two groups(P<0.05).Conclusion Evaluating the lesion depth of small-diameter and low-grade(G1 grade)R-NEN before surgery by miniprobe EUS and selecting endoscopic surgery according to its results of can significantly reduce the residual risk of resection margin tumors.
10.Analysis of influencing factors of pancreatic fat deposition and the association with islet function in type 2 diabetes mellitus
Hui HUA ; Chao-Yu ZHU ; Yuan-Yuan XIAO ; Fu-Song JIANG ; Qing-Ge GAO ; Ji QIAO ; Li WEI
Medical Journal of Chinese People's Liberation Army 2024;49(5):527-533
Objective To analyze the influencing factors of pancreatic fat deposition in patients with type 2 diabetes mellitus(T2DM),and to explore the relationship between pancreatic fat deposition and islet function.Methods A survey on diabetes prevalence was conducted among 548 residents in the Nicheng community of Pudong New Area from October 2015 to December 2016,including 301 patients with T2DM and 247 subjects with normal glucose tolerance(NGT).General information of the subjects were recorded,blood biochemical and insulin indexes were measured,body composition was measured by dual-energy X-ray absorptiometry,and insulin resistance index(HOMA-IR)and islet cell sensitivity index(HOMA-β)were calculated.Fatty liver and pancreatic fat deposition were detected by ultrasound.Both the T2DM group and NGT group were further divided into two subgroups according to the pancreatic fat deposition.Differences in general demographic information,biochemical and body fat indices among the groups were compared.Multivariate logistic regression was used to analyze the influencing factors of pancreatic fat deposition.Results In the NGT group,the subgroup with pancreatic fat deposition showed higher levels of age,waist circumference,waist-to-hip ratio(WHR),body mass index(BMI),fasting insulin levels(FINS),2-hour postprandial insulin levels(2 h INS),triglycerides(TG),uric acid(UA),alanine aminotransferase(ALT),fatty liver prevalence,abdominal fat percentage,and abdomen-to-hip ratio(AHR),compared with the subgroup without pancreatic fat deposition.High-density lipoprotein cholesterol(HDL-C)and limb fat percentage were lower in the subgroup with pancreatic fat deposition.In the T2DM group,the subgroup with pancreatic fat deposition showed higher levels of waist circumference,BMI,FINS,2 h INS,TG,UA,ALT,aspartate aminotransferase(AST),fatty liver prevalence,and abdominal fat percentage,compared with the subgroup without pancreatic fat deposition,with statistically significant differences(P<0.05).The HOMA-IR and HOMA-β in both NGT and T2DM groups with pancreatic fat deposition were significantly higher than those in the groups without pancreatic fat deposition.The prevalence of insulin resistance also significantly increased,with statistically significant differences(P<0.05).The results of multivariate logistic regression analysis showed that HDL-C,HOMA-β,abdominal fat percentage,age and fatty liver were the influencing factors for pancreatic fat deposition in NGT.Conclusion Elderly individuals with abdominal obesity and fatty liver are more prone to developing pancreatic fat deposition,which can affect islet function and aggravate the insulin resistance.


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