1.Effect and Mechanisms of Chinese Medicine and Its Active Ingredients in Enhancing Antibacterial Activities of Antibiotics: A Review
Ling CHEN ; Xueqin JIANG ; Tao YUAN ; Sufang KUANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):305-313
With the increasing severity of bacterial antibiotic resistance, finding new ways to overcome this global challenge has become an urgent task. Chinese medicine, with abundant resources, offers potential for discovering diverse bioactive ingredients to enhance antibiotic efficacy and alleviate the crisis of bacterial antibiotic resistance. This review summarizes bacterial resistance mechanisms, prevention strategies, and the roles and mechanisms of Chinese medicine and its active ingredients in enhancing the efficacy of existing antibiotics. Two major resistance mechanisms—bacterial obstruction of antibiotic uptake and weakening of intracellular antibiotic activity—are introduced, with corresponding prevention and control strategies outlined. Based on the regulatory effects of active ingredients from Chinese medicine on bacteria, their mechanisms for enhancing antibiotic efficacy are categorized into two types, including improving the bacterial uptake of antibiotics and reducing the bacterial resistance to antibiotics. The former mainly enhances extracellular antibiotic uptake by regulating membrane permeability, biofilm formation, and metabolic pathways. The latter weakens intracellular antibiotic resistance by inhibiting efflux pumps and bacterial resistance targets. Furthermore, compound formulas of Chinese medicine, characterized by multi-component, multi-target, and multi-pathway interventions, exert similar antimicrobial effects and mechanisms with active ingredients, offering rich resources for developing antibiotic-enhancing applications. Finally, the review highlights the challenges such as insufficient structural research on active ingredients and potential druggability issues in their application for antibiotic enhancement. This will provide insights for advancing the research on Chinese active ingredients in antibiotic therapy and offers novel strategies to combat bacterial antibiotic resistance.
2.Effect and Mechanisms of Chinese Medicine and Its Active Ingredients in Enhancing Antibacterial Activities of Antibiotics: A Review
Ling CHEN ; Xueqin JIANG ; Tao YUAN ; Sufang KUANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):305-313
With the increasing severity of bacterial antibiotic resistance, finding new ways to overcome this global challenge has become an urgent task. Chinese medicine, with abundant resources, offers potential for discovering diverse bioactive ingredients to enhance antibiotic efficacy and alleviate the crisis of bacterial antibiotic resistance. This review summarizes bacterial resistance mechanisms, prevention strategies, and the roles and mechanisms of Chinese medicine and its active ingredients in enhancing the efficacy of existing antibiotics. Two major resistance mechanisms—bacterial obstruction of antibiotic uptake and weakening of intracellular antibiotic activity—are introduced, with corresponding prevention and control strategies outlined. Based on the regulatory effects of active ingredients from Chinese medicine on bacteria, their mechanisms for enhancing antibiotic efficacy are categorized into two types, including improving the bacterial uptake of antibiotics and reducing the bacterial resistance to antibiotics. The former mainly enhances extracellular antibiotic uptake by regulating membrane permeability, biofilm formation, and metabolic pathways. The latter weakens intracellular antibiotic resistance by inhibiting efflux pumps and bacterial resistance targets. Furthermore, compound formulas of Chinese medicine, characterized by multi-component, multi-target, and multi-pathway interventions, exert similar antimicrobial effects and mechanisms with active ingredients, offering rich resources for developing antibiotic-enhancing applications. Finally, the review highlights the challenges such as insufficient structural research on active ingredients and potential druggability issues in their application for antibiotic enhancement. This will provide insights for advancing the research on Chinese active ingredients in antibiotic therapy and offers novel strategies to combat bacterial antibiotic resistance.
3.Retrospective clinical study on cryopreservation-free integrated autologous hematopoietic stem cell transplantation model for newly diagnosed multiple myeloma
Xi YANG ; Chenglong LI ; Jiao CHEN ; Feifei CHE ; Rong XIAO ; Hui LI ; Juan HUANG ; Tao JIANG ; Haiqing YANG ; Huan WANG ; Xiaochuan KUANG ; Xiaobing HUANG
Chinese Journal of Hematology 2024;45(5):488-494
Objective:To explore the efficacy and safety of cryopreservation-free integrated autologous hematopoietic stem cell transplantation (HSCT) model for patients with multiple myeloma.Methods:A total of 96 patients with newly diagnosed multiple myeloma (NDMM) between July 31, 2020, and December 31, 2022, were retrospectively analyzed, of which 41 patients in the observation group received integrated non-cryopreserved transplantation mode. After hematopoietic stem cells were mobilized and collected, melphalan was started immediately for pre-transplant conditioning, and non-cryopreserved grafts from the medical blood transfusion refrigerator were directly injected intravenously into the patient within 24-48 h after the melphalan conditioning. The control group consisted of 55 patients who received traditional transplantation mode. After hematopoietic stem cells were collected, stem cell cryopreservation was performed in liquid nitrogen, and then the transplant plans were started at the right time. All patients received mobilization of autologous hematopoietic stem cells using the G-CSF combined with the plerixafor.Results:① A total of 34 patients (82.9% ) with VGPR plus CR in the observation group were significantly higher than 33 patients (60.0% ) in the control group ( P=0.016). ②Compared with the control group, the incidence of grade 1 oral mucosal inflammation was higher in the observation group ( P<0.001) ; however, the incidence of grades 2 and 3 oral mucosal inflammation was lower ( P=0.004, P=0.048), and neither group experienced grade 4 or above oral mucosal inflammation. The incidence of grade 1 diarrhea was higher in the observation group ( P=0.002), whereas the incidence of grade 3 diarrhea was lower ( P=0.007). No statistically significant difference was observed in the incidence of grade 4 diarrhea ( P=0.506), and neither group experienced grade 5 diarrhea. ③ The incidence of bacterial infection in the observation group was lower than that in the control group (34.1% vs 65.5%, P=0.002), whereas no statistically significant difference was observed in the incidence of fungal infection (29.3% vs 31.4%, P=0.863) and viral infection (4.88% vs 3.64%, P=0.831). ④No statistically significant difference was observed in the implantation time of granulocytes and platelets between the observation and control groups [10 (8-20) days vs 11 (8-17) days, P=0.501; 13 (10-21) days vs 15 (10-20) days, P=0.245]. ⑤ All patients did not receive lenalidomide treatment 100 days post-transplantation. At 30 days post-transplantation, the CTL, NK, and Th cell counts in the observation group were lower than those in the control group ( P<0.001, P=0.002, P=0.049), and the NKT cell counts were higher than those in the control group ( P=0.024). At 100 days post-transplantation, the CTL, NKT, and Th cell counts in the observation group were higher than those in the control group ( P=0.025, P=0.011, P=0.007), and no statistically significant difference in NK cell counts was observed between the two groups ( P=0.396). ⑥ The median follow-up was 18 (4-33) months. The overall 2-year survival rates of the observation and control groups post-transplantation were 91.5% and 78.2%, respectively ( P=0.337). The recurrence-free survival rates were 85.3% and 77.6%, respectively ( P=0.386), and the cumulative recurrence rates were 9.8% and 16.9%, respectively ( P=0.373) . Conclusion:In NDMM, the cryopreservation-free integrated autologous HSCT model can achieve similar therapeutic effects as traditional transplantation models, with lower rates of severe mucosal inflammation and infection compared with traditional transplantation models.
4.Advances in pharmacological effects of ginseng,acorus calamus and its couplet medicine on Alzheimer's disease
Yu-Chen ZHU ; Bo-Yu KUANG ; Jin-Ping LIANG ; Xiao-Lei PEI ; Jia-Zhu ZHAO ; Shi-Feng CHU ; Nai-Hong CHEN ; Yan-Tao YANG
Chinese Pharmacological Bulletin 2024;40(5):817-822
The pathogenesis of Alzheimer's disease(AD)is complex and unclear.Existing drugs can only alleviate its symp-toms,and there is an urgent need to develop effective therapeutic drugs.As the representative drugs of tonic and enlightening medicine,ginseng and acorus calamus have pharmacological effects to improve memory,improve learning ability and reduce cognitive impairment,which are commonly used in Chinese med-icine for the treatment of dementia.The combination of ginseng and acorus calamus can further promote the active ingredients in-to brain to exert their medicinal effects,and delay the process of AD through anti-inflammatory,anti-oxidative stress,modulation of neuronal-synaptic plasticity and other multiple pathways,with multi-level,multi-system and multi-target action characteristics.This paper attempts to summarize the existing research results and lay the foundation for further exploring the synergistic mech-anism of action of ginseng-acorus calamus combination and the dose-effect relationship of the combination,so as to provide a sci-entific basis for the development of innovative Chinese medicines for the prevention and treatment of AD.
5.Advances in exosomes and Alzheimer's disease
Jin-Ping LIANG ; Yu-Chen ZHU ; Sha-Sha LIU ; Yang SUN ; Bo-Yu KUANG ; Shi-Feng CHU ; Nai-Hong CHEN ; Qi-Di AI ; Yan-Tao YANG
Chinese Pharmacological Bulletin 2024;40(9):1628-1633
Exosomes represent a class of nanoscale extracellular vesicles that facilitate the exchange of genetic information among various cells.Alzheimer's disease(AD)stands as a progressive neurodegenerative disorder characterized by its subtle and advan-cing onset,representing the foremost form of dementia lacking effective therapeutic interventions.Notably,investigations have illuminated the involvement of exosomes in the pathogenesis of AD,attributing diagnostic and therapeutic significance to their role,particularly concerning exosomal microRNAs(miRNA).The miRNAs carried by exosomes serve as potential biomarkers for AD,while also exhibiting potential benefits in ameliorating cognitive dysfunction in individuals afflicted by AD.This article aims to comprehensively review the origins of exosomes(encom-passing both mesenchymal cell-derived exosomes and brain-de-rived exosomes)and their potential as therapeutic agents targe-ting AD.
6.Peste des petits ruminants virus infection induces endoplasmic reticulum stress and apoptosis via IRE1-XBP1 and IRE1-JNK signaling pathways
Shuyi YUAN ; Yanfen LIU ; Yun MU ; Yongshen KUANG ; Shaohong CHEN ; Yun-Tao ZHAO ; You LIU
Journal of Veterinary Science 2024;25(2):e21-
Background:
Peste des petits ruminants (PPR) is a contagious and fatal disease of sheep and goats. PPR virus (PPRV) infection induces endoplasmic reticulum (ER) stress-mediated unfolded protein response (UPR). The activation of UPR signaling pathways and their impact on apoptosis and virus replication remains controversial.
Objectives:
To investigate the role of PPRV-induced ER stress and the IRE1-XBP1 and IRE1-JNK pathways and their impact on apoptosis and virus replication.
Methods:
The cell viability and virus replication were assessed by 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide assay, immunofluorescence assay, and Western blot. The expression of ER stress biomarker GRP78, IRE1, and its downstream molecules, PPRV-N protein, and apoptosis-related proteins was detected by Western blot and quantitative reverse transcription-polymerase chain reaction, respectively. 4-Phenylbutyric acid (4-PBA) and STF-083010 were respectively used to inhibit ER stress and IRE1 signaling pathway.
Results:
The expression of GRP78, IRE1α, p-IRE1α, XBP1s, JNK, p-JNK, caspase-3, caspase-9, Bax and PPRV-N were significantly up-regulated in PPRV-infected cells, the expression of Bcl-2 was significantly down-regulated. Due to 4-PBA treatment, the expression of GRP78, p-IRE1α, XBP1s, p-JNK, caspase-3, caspase-9, Bax, and PPRV-N were significantly downregulated, the expression of Bcl-2 was significantly up-regulated. Moreover, in PPRV-infected cells, the expression of p-IRE1α, p-JNK, Bax, and PPRV-N was significantly decreased, and the expression of Bcl-2 was increased in the presence of STF-083010.
Conclusions
PPRV infection induces ER stress and IRE1 activation, resulting in apoptosis and enhancement of virus replication through IRE1-XBP1s and IRE1-JNK pathways.
7. Mechanosensitive ion channel Piezo1 induces senescence of atrial fibroblasts by activating β-catenin
Xing-Dong YE ; Xue-Shan LUO ; Qiao-Qiao LI ; Jin-Tao HE ; Yu-Wen XU ; Hui YANG ; Chun-Yu DENG ; Su-Juan KUANG ; Meng-Zhen ZHANG ; Shu-Lin WU ; Fang RAO ; Yu-Mei XUE
Chinese Pharmacological Bulletin 2023;39(7):1234-1241
Aim To observe whether the mechanosensitive ion channel Piezo1 was involved in the senescence of atrial fibroblasts by activating β-catenin based on our previous study which found marked increase of Piezo1 mRNA in senescent atrial fibroblasts. Methods Primary mouse atrial fibroblasts (MAFs) were isolated from male C57BL/6 mice (3-4 weeks) by enzyme digestion, and tert-butyl hydroperoxide (TBHP) was used to induce the senescence of cells. The ratio of senescent cells was detected by senescence-associated β-galactosidase (SA-β-Gal) staining. The protein levels of Piezo1, β-catenin/p-β-catenin, senescence-associated proteins p53 and p21 in the cells treated with TBHP (100 μmol · L
8.Ginsenoside Rg5 enhances the radiosensitivity of lung adenocarcinoma via reducing HSP90-CDC37 interaction and promoting client protein degradation
Hansong BAI ; Jiahua LYU ; Xinyu NIE ; Hao KUANG ; Long LIANG ; Hongyuan JIA ; Shijie ZHOU ; Churong LI ; Tao LI
Journal of Pharmaceutical Analysis 2023;13(11):1296-1308
Ginsenoside Rg5 is a rare ginsenoside showing promising tumor-suppressive effects.This study aimed to explore its radio-sensitizing effects and the underlying mechanisms.Human lung adenocarcinoma cell lines A549 and Calu-3 were used for in vitro and in vivo analysis.Bioinformatic molecular docking prediction and following validation by surface plasmon resonance(SPR)technology,cellular thermal shift assay(CETSA),and isothermal titration calorimetry(ITC)were conducted to explore the binding between ginsenoside Rg5 and 90 kD heat shock protein alpha(HSP90α).The effects of ginsenoside Rg5 on HSP90-cell division cycle 37(CDC37)interaction,the client protein stability,and the downstream regulations were further explored.Results showed that ginsenoside Rg5 could induce cell-cycle arrest at the G1 phase and enhance irradiation-induced cell apoptosis.It could bind to HSP90α with a high affinity,but the affinity was drastically decreased by HSP90α Y61A mutation.Co-immunoprecipitation(Co-IP)and ITC assays confirmed that ginsenoside Rg5 disrupts the HSP90-CDC37 interaction in a dose-dependent manner.It reduced irradiation-induced upre-gulation of the HSP90-CDC37 client proteins,including SRC,CDK4,RAF1,and ULK1 in A549 cell-derived xenograft(CDX)tumors.Ginsenoside Rg5 or MRT67307(an IKKe/TBK1 inhibitor)pretreatment suppressed irradiation-induced elevation of the LC3-Ⅱ/β ratio and restored irradiation-induced downregulation of p62 expression.In A549 CDX tumors,ginsenoside Rg5 treatment suppressed LC3 expression and enhanced irradiation-induced DNA damage.In conclusion,ginsenoside Rg5 may be a potential radiosensitizer for lung adenocarcinoma.It interacts with HSP90α and reduces the binding between HSP90 and CDC37,thereby increasing the ubiquitin-mediated proteasomal degradation of the HSP90-CDC37 client proteins.
9.Recent advance in laboratory-related indicators of fibromyalgia syndrome
Sishi KUANG ; Hua CAI ; Mingxin GAO ; Yulu LIU ; Jin TAO ; Tingting ZHENG ; Yuan ZHANG
Chinese Journal of Neuromedicine 2023;22(6):642-647
Fibromyalgia syndrome (FMS), also known as fibromyalgia, is clinically characterized by diffuse chronic muscle and bone pain, accompanied by fatigue, sleep disturbances, depressive episodes, and cognitive and intestinal dysfunction. Due to lack of clear specific laboratory indicators and appropriate imaging examinations, FMS diagnosis is mostly based on clinical symptoms, but FMS clinical symptoms of lack specificity, and current clinical diagnostic criteria are mostly exclusive criteria, which is prone to missed diagnosis and misdiagnosis. In order to further promote the standardized diagnosis and treatment of FMS, this paper makes extensive references to laboratory-related diagnostic indexes of FMS (Tau, adiponectin, serum cathepsin S, cystatin C, serum ferritin, nitric oxide, neutrophil/lymphocyte ratio, platelet distribution width and mean platelet volume) at home and abroad, aiming to provide new ideas for early diagnosis and intervention of FMS.
10.Research progress of anti-pulmonary fibrosis drugs targeting autotaxin-lysophosphatidic acid axis
Hai-yan JIANG ; Lian KUANG ; Tian-yu ZHOU ; Hong-tao JIN
Acta Pharmaceutica Sinica 2023;58(10):2961-2969
Pulmonary fibrosis is an interstitial lung disease characterized by inflammatory injury and tissue structure destruction. Currently, there is a lack of effective therapeutic drugs for pulmonary fibrosis, and the mechanism is still unknown. Therefore, it is urgent to seek new targets for effective drugs. In pulmonary fibrosis, the level of autotaxin (ATX) in bronchoalveolar lavage fluid increases and stimulates the production of lysophosphatidic acid (LPA). The involvement of LPA receptors in activating a variety of G-protein-mediated signal transduction pathways leads to a range of related physiological effects, including pro-inflammatory signaling in epithelial cells, activation of transforming growth factor signaling, and stimulation of fibroblast accumulation. LPA receptor antagonists and ATX inhibitors have been concerned as new targets for pulmonary fiber therapy, and currently related drugs have entered clinical trials. In this paper, the pathophysiological effects of LPA and ATX in pulmonary fibrosis disease and related drug development progress were reviewed to provide reference information of new drug development for pulmonary fibrosis based on the ATX-LPA axis.

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