1.Mechanism of Si Junzitang in Treatment of Liver Injury in Rats with Spleen Qi Deficiency Syndrome Based on Liver and Spleen Correlation
Peng PENG ; Min BAI ; Jin JIN ; Qihui YUAN ; Xiaoyi YANG ; Juan DU ; Yongqiang DUAN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(24):11-20
ObjectiveTo investigate the mechanism of Si Junzitang in treating liver injury in rats with spleen Qi deficiency syndrome based on transcriptomics and to experimentally verify its effects. MethodsSixty male SD rats were randomly divided into blank group, model group, low-dose Si Junzitang (6 g·kg-1·d-1), medium-dose Si Junzitang group (12 g·kg-1·d-1), high-dose Si Junzitang group (24 g·kg-1·d-1), and natural recovery group, with 10 rats in each group. A composite multifactorial modeling method (forced swimming + intragastric administration of Xiao Chengqitang + irregular diet) was used to establish a spleen Qi deficiency model. After 30 days of continuous intervention, body weight and 3-hour food intake were measured, and macroscopic symptom scores for spleen Qi deficiency syndrome were evaluated. Serum levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in each group were detected, and hematoxylin and eosin (HE) staining was used to observe histopathological changes in liver tissue. Transcriptome sequencing (RNA-Seq) was used to identify differentially expressed genes (DEGs) among the blank, model, and high-dose Si Junzitang groups. Gene ontology(GO) and Kyoto encyclopedia of genes and genome(KEGG) enrichment analyses were performed on the DEGs. Immunofluorescence (IF) and Western blot were used to detect NOD-like receptor protein 3 (NLRP3), apoptosis-associated speck-like protein (ASC), Caspase-1, and the N-terminal domain of gasdermin D (GSDMD-N). Immunohistochemistry (IHC) was used to detect the expression of downstream inflammatory cytokines interleukin-1β (IL-1β), interleukin-6 (IL-6), and interleukin-18 (IL-18). ResultsCompared with the blank group, the model group showed significantly reduced body weight and 3-hour food intake, significantly increased macroscopic symptom scores, and elevated serum AST and ALT levels (P<0.01), with mild inflammatory liver injury observed histologically. Compared with the model group, Si Junzitang at all doses significantly improved these parameters and alleviated liver injury in a dose-dependent manner (P<0.05,P<0.01). RNA-Seq analysis revealed 1 254 DEGs between the blank and model groups, and 842 DEGs between the model and high-dose Si Junzitang groups. GO and KEGG enrichment analyses indicated that the NOD-like receptor signaling pathway was activated in liver injury associated with spleen Qi deficiency, suggesting that the NLRP3 inflammasome may be a key target. Results from IF, IHC, and Westernblot showed that compared with the blank group, the expression of NLRP3, ASC, Caspase-1, GSDMD-N, and the downstream inflammatory cytokines IL-1β, IL-6, and IL-18 were significantly increased in the model group (P<0.01), while these levels were markedly decreased in the high-dose Si Junzitang group (P<0.01). ConclusionSi Junzitang effectively improves mild inflammatory liver injury in rats with spleen Qi deficiency syndrome in a dose-dependent manner. Its mechanism may be associated with inhibition of the NLRP3/ASC/Caspase-1 signaling pathway, downregulation of the pyroptosis executioner protein GSDMD-N, and reduction of pyroptosis-related inflammatory cytokine release.
2.Study on the efficacy of automatic-controlled pressure cupping for lumbar disc herniation.
Bo-Chen PENG ; Min-Shan FENG ; Li LI ; Gui-Ju REN ; Yi-Zhen YUAN ; Li-Jie CHANG ; Shu-Ying REN ; Liu ZENG ; Guang-Wei LIU ; Li-Guo ZHU ; Na YUAN
China Journal of Orthopaedics and Traumatology 2025;38(11):1133-1138
OBJECTIVE:
To observe the clinical efficacy and safety of automatic pressure-controlled pressure cupping in patients with lumbar disc herniation, and compare it with traditional cupping.
METHODS:
A total of 100 patients diagnosed with lumbar disc herniation from January 2022 to August 2024 were selected and divided into two groups:the automatic pressure-controlled pressure cupping group (controlled pressure cupping group) and the traditional cupping group (control group), 50 cases in each group. In the controlled pressure cupping group, there were 18 males and 32 females, with an age of (51.98±12.69) years;in the control group, there were 16 males and 34 females, with an age of (51.32±12.05) years. The visual analogue scale(VAS), comfort score, and lumbar range of motion were observed before treatment and after the 1st, 3rd, and 7th treatments to evaluate the efficacy and safety.
RESULTS:
All patients completed the treatment intervention, with complete follow-up data collected. No adverse reactions or complications occurred during treatment and follow-up. After the 3rd treatment, the VAS score of the controlled pressure cupping group was (2.38±0.49), which was lower than that of the control group (2.94±0.68), with a statistically significant difference (P<0.001). In the controlled pressure cupping group, the VAS scores after the 1st, 3rd, and 7th treatments were significantly better than those before treatment (P=0.026);in the control group, the VAS scores after the 3rd and 7th treatments were better than those before treatment, but the difference was not statistically significant(P=0.182). Repeated-measures analysis of variance (ANOVA) on VAS scores at different time points in both groups showed that there were statistically significant differences in inter-group, time, and interaction effects (P<0.05). After the 1st treatment, in the controlled pressure cupping group, 0 patients felt comfortable, 42 patients (84%) felt mild discomfort, and 8 patients (16%) felt moderate discomfort;in the control group, 0 patients felt comfortable, 28 patients (56%) felt mild discomfort, and 22 patients(44%) felt moderate discomfort;the difference between the two groups was statistically significant(P=0.005). After the 3rd treatment, in the controlled pressure cupping group, 30 patients(60%) felt comfortable, 20 patients (40%) felt mild discomfort, and 0 patients felt moderate discomfort; in the control group, 9 patients (18%) felt comfortable, 41 patients (82%) felt mild discomfort, and 0 patients felt moderate discomfort;the difference between the two groups was statistically significant(P<0.001). There was no statistically significant difference in comfort between the two groups after the 7th treatment(P>0.001). There was no statistically significant difference in lumbar range of motion between the two groups before and after treatment(P>0.05);compared with before treatment, the lumbar range of motion of both groups after treatment was significantly improved, with statistically significant differences (P<0.001).
CONCLUSION
Automatic pressure-controlled pressure cupping can effectively relieve symptoms in patients with lumbar disc herniation, with excellent safety.
Humans
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Female
;
Male
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Intervertebral Disc Displacement/physiopathology*
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Middle Aged
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Adult
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Lumbar Vertebrae/physiopathology*
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Cupping Therapy/methods*
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Pressure
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Aged
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Treatment Outcome
3.Preliminary efficacy and safety of a dose-intensified C5VD regimen in 24 children with locally advanced hepatoblastoma.
Jia-Xin PENG ; Can HUANG ; An-An ZHANG ; Ya-Li HAN ; Hai-Shan RUAN ; Xiao-Xia WANG ; Min XU ; Yuan XIN ; Li-Ting YU ; Zhi-Bao LYU ; Sha-Yi JIANG ; Yi-Jin GAO
Chinese Journal of Contemporary Pediatrics 2025;27(10):1247-1252
OBJECTIVES:
To assess the preliminary efficacy and safety of a dose-intensified C5VD regimen (cisplatin, 5-fluorouracil, vincristine, and doxorubicin) in children with locally advanced hepatoblastoma.
METHODS:
This prospective study enrolled 24 children with newly diagnosed, locally advanced hepatoblastoma who received the dose-intensified C5VD regimen at Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, and Shanghai Children's Hospital between January 2020 and December 2023. Clinical characteristics, treatment outcomes, and chemotherapy-related toxicities were analyzed.
RESULTS:
Of the 24 patients, 13 were male and 11 were female, with a median age at diagnosis of 18.7 months (range: 3.5-79.4 months). All patients achieved complete macroscopic resection of hepatic lesions without liver transplantation. Serum alpha-fetoprotein levels decreased significantly after two chemotherapy cycles. During a median follow-up of 38.4 months (range: 15.8-50.7 months), all patients maintained continuous complete remission, with 3-year event-free survival and overall survival rates of 100%. Across 144 chemotherapy cycles, the incidence rates of grade 3-4 neutropenia, thrombocytopenia, and infections were 97%, 77%, and 71%, respectively; no treatment-related deaths occurred. Notably, 5 patients (21%) developed Brock grade ≥3 hearing loss, of whom 1 required a hearing aid.
CONCLUSIONS
The dose-intensified C5VD regimen demonstrates significant efficacy with an overall favorable safety profile in the treatment of newly diagnosed, locally advanced pediatric hepatoblastoma. Grade 3-4 myelosuppression and infection are the predominant toxicities. However, high‑dose cisplatin-induced ototoxicity remains a concern, highlighting the need for improved otoprotective strategies.
Humans
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Hepatoblastoma/pathology*
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Male
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Female
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Infant
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Liver Neoplasms/pathology*
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Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
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Child, Preschool
;
Prospective Studies
;
Doxorubicin/adverse effects*
;
Child
;
Cisplatin/adverse effects*
;
Vincristine/adverse effects*
;
Fluorouracil/adverse effects*
4.Glutamine signaling specifically activates c-Myc and Mcl-1 to facilitate cancer cell proliferation and survival.
Meng WANG ; Fu-Shen GUO ; Dai-Sen HOU ; Hui-Lu ZHANG ; Xiang-Tian CHEN ; Yan-Xin SHEN ; Zi-Fan GUO ; Zhi-Fang ZHENG ; Yu-Peng HU ; Pei-Zhun DU ; Chen-Ji WANG ; Yan LIN ; Yi-Yuan YUAN ; Shi-Min ZHAO ; Wei XU
Protein & Cell 2025;16(11):968-984
Glutamine provides carbon and nitrogen to support the proliferation of cancer cells. However, the precise reason why cancer cells are particularly dependent on glutamine remains unclear. In this study, we report that glutamine modulates the tumor suppressor F-box and WD repeat domain-containing 7 (FBW7) to promote cancer cell proliferation and survival. Specifically, lysine 604 (K604) in the sixth of the 7 substrate-recruiting WD repeats of FBW7 undergoes glutaminylation (Gln-K604) by glutaminyl tRNA synthetase. Gln-K604 inhibits SCFFBW7-mediated degradation of c-Myc and Mcl-1, enhances glutamine utilization, and stimulates nucleotide and DNA biosynthesis through the activation of c-Myc. Additionally, Gln-K604 promotes resistance to apoptosis by activating Mcl-1. In contrast, SIRT1 deglutaminylates Gln-K604, thereby reversing its effects. Cancer cells lacking Gln-K604 exhibit overexpression of c-Myc and Mcl-1 and display resistance to chemotherapy-induced apoptosis. Silencing both c-MYC and MCL-1 in these cells sensitizes them to chemotherapy. These findings indicate that the glutamine-mediated signal via Gln-K604 is a key driver of cancer progression and suggest potential strategies for targeted cancer therapies based on varying Gln-K604 status.
Glutamine/metabolism*
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Myeloid Cell Leukemia Sequence 1 Protein/genetics*
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Humans
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Proto-Oncogene Proteins c-myc/genetics*
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Cell Proliferation
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Signal Transduction
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Neoplasms/pathology*
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F-Box-WD Repeat-Containing Protein 7/genetics*
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Cell Survival
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Cell Line, Tumor
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Apoptosis
5.Recent advances in regulating the cell cycle through inhibiting CDKs for cancer treatment.
Weijiao CHEN ; Xujie ZHUANG ; Yuanyuan CHEN ; Huanaoyu YANG ; Linhu SHEN ; Sikai FENG ; Wenjian MIN ; Kai YUAN ; Peng YANG
Chinese Journal of Natural Medicines (English Ed.) 2025;23(3):286-298
The inhibition of cyclin-dependent kinases (CDKs) is considered a promising strategy for cancer treatment due to their role in cell cycle regulation. However, CDK inhibitors with no selectivity among CDK families have not been approved. A CDK inhibitor with high selectivity for CDK4/6 exhibited significant treatment effects on breast cancer and has become a heavy bomb on the market. Subsequently, resistance gradually decreased the efficacy of selective CDK4/6 inhibitors in breast cancer treatment. In this review, we first introduce the development of selective CDK4/6 inhibitors and then explain the role of CDK2 activation in inducing resistance to CDK4/6 inhibitors. Moreover, we focused on the development of CDK2/4/6 inhibitors and selective CDK2 inhibitors, which will aid in the discovery of novel CDK inhibitors targeting the cell cycle in the future.
Humans
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Cell Cycle/drug effects*
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Protein Kinase Inhibitors/chemistry*
;
Cyclin-Dependent Kinases/metabolism*
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Neoplasms/genetics*
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Antineoplastic Agents/pharmacology*
;
Animals
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Breast Neoplasms/enzymology*
;
Cyclin-Dependent Kinase 4/metabolism*
6.To Explore the Mechanism of Huayu Xiaopi Decoction in the Intervention of Precancerous Lesions of Gastric Cancer Based on Network Pharmacology and Molecular Docking Technique and in vivo Experiment
Ziyou LIU ; Yongqiang DUAN ; Yaorong AN ; Yanying ZHANG ; Bing SONG ; Min BAI ; Xiaomei YUAN ; Yue PENG ; Mengyong XIAO ; Weiqiang LI
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(4):1092-1103
Objective To predict the target and molecular mechanism of Huayu Xiaopi decoction in the intervention of Precancerous lesions of gastric cancer(PLGC)based on network pharmacology and molecular docking technology,and to conduct experimental verification.Methods A total of 60 SPF SD male rats were randomly selected as blank control,and the other rats were replicated in PLGC model.After successful modeling,the rats were randomly divided into model group,folic acid group(2 mg·kg-1·d-1),Huayu Xiaopi decoction high,medium and low dose groups(24.8,12.4,6.2 g·kg-1·d-1),which were continuously administered for 90 days.The body mass and food intake of rats at 3 h were recorded,and the gastric histopathology was observed by HE staining.Network pharmacology and molecular docking techniques were used to predict the potential targets of Huayu Xiaopi decoction in PLGC intervention,and the core targets were verified by Western blot technique.Results Compared with the blank group,the body mass and 3 h food intake of rats in the model group were significantly decreased(P<0.05),the gastric mucosa of rats was significantly thinner,the glands were significantly reduced and disordered,and the intestinal metaplasia goblet cells and a large number of inflammatory cells were visible in some areas.Compared with the model group,the body mass and 3 h food intake of rats in each administration group were improved to varying degrees.Huayu Xiaopi Decoction improved significantly in medium and high doses(P<0.05),the gastric mucosa was repaired in different degrees,the glandular arrangement tended to be orderly,and the inflammatory cells in the interstitial were gradually reduced.The results of network pharmacology and molecular docking showed that TP53,JUN and MAPK3/1(ERK1/2)were the core targets of Huayu Xiaopi decoction in the intervention of PLGC.Molecular biological detection results showed that compared with blank group,the protein phosphorylation levels of TP53,c-Jun and ERK1/2 in gastric tissue of model group were significantly increased(P<0.05).Compared with model group,the protein phosphorylation levels of TP53,c-Jun and ERK1/2 in gastric tissue of rats in all administration groups were decreased to different degrees,and significantly decreased in Huayu Xiaopi decoction high-dose and medium-dose groups(P<0.05).Conclusion Huayu Xiaopi Decoction can significantly improve the survival condition of PLGC rats and promote gastric mucosal repair,the specific mechanism of which may be related to the decrease of ERK1/2,c-Jun and TP53 protein phosphorylation levels in gastric tissue of PLGC rats,and then regulate the downstream signaling molecular response.
7.Clinical Observation on Acupuncture at the Core Muscle Group Combined with Rehabilitation Training in the Treatment of Chronic Non-specific Low Back Pain
Jing YANG ; Hong-Mei WANG ; Ping YUAN ; Juan SHEN ; Min LIU ; Peng-Liang HAO
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(8):2075-2081
Objective To observe the clinical effect of acupuncture at the core muscle group combined with rehabilitation training in the treatment of chronic non-specific low back pain.Methods A total of 96 patients with chronic non-specific low back pain were randomly divided into observation group and control group,48 cases in each group.The control group was given rehabilitation training,and the observation group was given acupuncture at core muscle group training on the basis of the control group.Patients in both groups were treated continuously for two weeks.After two weeks of treatment,the clinical efficacy of the two groups was evaluated.The changes of root mean square(RMS)values of transverse abdominal muscle and multifidus muscle were observed before and after treatment,as well as the scores of Oswestry Dysfunction Index,Roland-Morris Dysfunction Questionnaire and Quebec Low Back Pain Scale.The changes of serum β-endorphin,serum substance P and serum prostaglandin E2 levels were compared before and after treatment between the two groups.The patients were followed up for five months after treatment,and the recurrence of the two groups was evaluated.Results(1)The total effective rate was 93.75%(45/48)in the observation group and 81.25%(39/48)in the control group.The curative effect of the observation group was superior to that of the control group,and the difference was statistically significant(P<0.05).(2)After treatment,the Oswestry Dysfunction Index score,Roland-Morris Dysfunction Questionnaire score and Quebec Low Back Pain Disorder Scale score of the two groups were significantly improved(P<0.05),and the improvement of Oswestry Dysfunction Index score,Roland-Morris Dysfunction Questionnaire score and Quebec Low Back Pain Disorder Scale score in the observation group was significantly superior to that in the control group,the difference was statistically significant(P<0.05).(3)After treatment,the RMS values of transverse abdominal muscle and multifidus muscle in the two groups were significantly improved(P<0.05),and the observation group was significantly superior to the control group in improving the RMS values of transverse abdominal muscle and multifidus muscle,the difference being significant(P<0.05).(4)After treatment,the levels of β-endorphin,substance P and prostaglandin E2 in the two groups were significantly improved(P<0.05),and the observation group was significantly superior to the control group in improving the levels of β-endorphin,substance P and prostaglandin E2,the differences were statistically significant(P<0.05).(5)After treatment,the recurrence rate of the observation group was 6.25%(3/48),and that of the control group was 20.83%(10/48).The recurrence rate of the observation group was significantly lower than that of the control group,and the difference was statistically significant(P<0.05).Conclusion Acupuncture at the core muscle group combined with rehabilitation training in the treatment of chronic non-specific low back pain can significantly improve the clinical symptoms of patients,improve the levels of β-endorphin,substance P and prostaglandin E2,and the clinical effect is significant.
8.A Retrospective Study on the Qianyang Fengsui Dan Combined with Flying Needle Therapy in the Treatment of Kidney-Yang Deficiency Type of Insomnia
Hong-Yan YANG ; Bao-Ting XU ; Ling-Ling DONG ; Xiu-Hong LIU ; Yuan-Min LI ; Qing-Bo MIAO ; Chao-Peng LIU
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(3):664-670
Objective To analyze the clinical efficacy of the Qianyang Fengsui Dan(combined with flying needle therapy)in the treatment of kidney-yang deficiency type of insomnia.Methods A retrospective study was conducted to select 82 patients with insomnia admitted to the Department of Traditional Chinese Medicine of Dezhou Hospital of Traditional Chinese Medicine from November 2020 to November 2021,and they were divided into an observation group and a control group according to whether or not they were treated with Qianyang Fengsui Dan combined with flying needle therapy,with 41 cases in each group.The control group was treated with Estazolam,while the observation group was treated with Qianyang Fengsui Dan combined with flying needle therapy on the basis of the treatment of the control group,and the course of treatment was 1 month.The changes of Pittsburgh Sleep Quality Index(PSQI)scores and Epworth Sleepiness Scale(ESS)scores,as well as polysomnographic parameters were observed before and after treatment in the two groups.The changes of γ-aminobutyric acid(GABA),glutamate(GA),substance P(SP),and neuropeptide Y(NPY)levels were compared before and after treatment between the two groups.And followed up for 1 year to compare the incidence of relapce of the two groups of patients.Results(1)The total effective rate was 95.12%(39/41)in the observation group and 63.41%(26/41)in the control group,and the efficacy of the observation group was superior to that of the control group,and the difference was statistically significant(P<0.05).(2)After treatment,PSQI scores and ESS scores of patients in the two groups were significantly improved(P<0.05),and the observation group was significantly superior to the control group in improving PSQI scores and ESS scores,and the differences were statistically significant(P<0.05).(3)After treatment,sleep efficiency,awakening time,sleep latency,REM,and total sleep time were significantly improved in the two groups(P<0.05),and the observation group was significantly superior to the control group in improving sleep efficiency,awakening time,sleep latency,REM,and total sleep time,and the differences were statistically significant(P<0.05).(4)After treatment,the serum GABA,GA,SP,and NPY levels of patients in the two groups were significantly improved(P<0.05),and the observation group was significantly superior to the control group in improving the serum GABA,GA,SP,and NPY levels,and the differences were all statistically significant(P<0.05).(5)After treatment,follow-up for 1 year,the recurrence rate of the observation group was 0,and there were 7 cases of recurrence in the control group,and the recurrence rate of the control group was 17.07%(7/41),and the recurrence rate of the observation group was lower than that of the control group,and the difference was statistically significant(P<0.05).Conclusion The combination of flying needle therapy and Qianyang Fengsui Dan can effectively relieve insomnia and fatigue in patients with insomnia,reduce daytime drowsiness,regulate the release of blood monoamine neurotransmitters,and reduce the relapse rate,and its efficacy is superior to that of simple western medicine treatment.
9.Recent advances in small-molecule inhibitors targeting influenza virus RNA-dependent RNA polymerase
Hui-nan JIA ; Rui-fang JIA ; Ji-wei ZHANG ; Yuan-min JIANG ; Chuan-feng LIU ; Ying ZHANG ; Xin-yong LIU ; Peng ZHAN
Acta Pharmaceutica Sinica 2024;59(1):43-60
Influenza virus causes serious threat to human life and health. Due to the inherent high variability of influenza virus, clinically resistant mutant strains of currently approved anti-influenza virus drugs have emerged. Therefore, it is urgent to develop antiviral drugs with new targets or mechanisms of action. RNA-dependent RNA polymerase is directly responsible for viral RNA transcription and replication, and plays key roles in the viral life cycle, which is considered an important target of anti-influenza drug design. From the point of view of medicinal chemistry, this review summarizes current advances in diverse small-molecule inhibitors targeting influenza virus RNA-dependent RNA polymerase, hoping to provide valuable reference for development of novel antiviral drugs.
10.Molecular characteristics of HA1 and NA genes of influenza A (H3N2) virus in Yancheng city from 2022 to 2024
Chunxiang LI ; Xiongying SUN ; Min YANG ; Peng SHEN ; Jiajing YUAN ; Min ZHANG ; Chen CHEN ; Changcheng LI ; Guoqing CHEN
Chinese Journal of Experimental and Clinical Virology 2024;38(4):446-453
Objective:To analyze the molecular evolutional characteristics of the hemagglutinin and neuraminidase genes of influenza A (H3N2) viruses isolated in Yancheng from 2022 to 2024.Methods:The throat swab specimens of influenza-like illness ( ILI) from sentinel surveillance hospital and outbreak sites were detected using the method of real time Rt-qPCR. The influenza A(H3N2) viruses were isolated using MDCK cells culture method from April 2022 to Marh 2024. The strains isolated from 2022 to 2024 were selected randomly and their sequences of the HA1 and NA genes were amplified through one step RT-PCR method and the PCR products were sequenced.The nucleotide and amino acid site variations and evolutionary characteristics of the genes were analyzed using relevant bioinformatics software. The mutations of genes and nucleic acid locus were analyzed and the evolutional trees were generated using bioinformatics software.Results:A total of 5 020 samples were collected between April 2022 and March 2024, the positive detection rate of influenza virus nucleic acid was 18.59%(933/5 020).The winter and spring influenza peaks were obvious in the two monitoring seasons from April 2022 to March 2024. Among them, the summer influenza peak was obvious in the monitoring season from April 2022 to March 2023, and the H3N2 subtype influenza virus was the dominant epidemic strain in the two monitoring seasons. Genetic evolution tree displayed: the clustering relationships of the respective branches of HA1 and NA genes of 32 strains isolated in Yancheng were basically the same.The HA1 and NA genes of 24 strains isolated from 2023-2024 in Yancheng and the 2022-2024 Northern Hemisphere vaccine strain A/Darwin/9/2021 (H3N2) were located in the 3C.2a1b2a.2a.3a.1 evolutionary lineage, while the 8 strains isolated in the 2022 in Yancheng and the 2021-2022 Northern Hemisphere vaccine strain A/Cambodia/e0826360/2020 (H3N2) were located in the 3C.2a1b.2a.1a evolutionary lineage.The 6 strains (A/JSTH/11735/2023, A/JSTH/11788/2023, A/JSTH/11974/2023, A/JSYD/353/2023, A/JSYD/354/2023, A/JSTH/138/2023) all exhibited variations in the F79L, N122D, P239S, and K276E amino acid sites, which were present in both sporadic and outbreak strains. Because the strains of the antigen epitopes, receptor binding sites and glycosylation sites in the HA1 genes had a certain degree of variations in Yancheng in the 2022-2024 year, the immunogenicity matching between the 24 strains isolated in the 2023-2024 and the Northern Hemisphere vaccine strain A/Darwin/9/2021 was good, while the immunogenicity matching between the 8 strains isolated in the 2022 and the Northern Hemisphere vaccine strain A/Cambodia/e0826360/2022 was good; 32 strains isolated from 2022 to 2024 had no mutations in catalytic residues and drug resistant sites of NA genes.Conclusion:These result indicated that the HA1 and NA genes of influenza A/H3N2 viruses circulated in Yancheng city from 2022 to 2024 are changed gradually.The accumulation of these mutations would result in antigenic drift of influenza A(H3N2) viruses and increase the mismatching of the recommended vaccine strain.Compared with the vaccine strain A/Darwin/9/2021(H3N2), the strains isolated in the 2022 had substantially result in antigenic drift on the whole.The influenza A(H3N2) viruses surveillance should be strengthened to find the new mutant of virus in time.

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