1.eIF3a function in immunity and protection against severe sepsis by regulating B cell quantity and function through m6A modification.
Qianying OUYANG ; Jiajia CUI ; Yang WANG ; Ke LIU ; Yan ZHAN ; Wei ZHUO ; Juan CHEN ; Honghao ZHOU ; Chenhui LUO ; Jianming XIA ; Liansheng WANG ; Chengxian GUO ; Jianting ZHANG ; Zhaoqian LIU ; Jiye YIN
Acta Pharmaceutica Sinica B 2025;15(3):1571-1588
eIF3a is a N 6-methyladenosine (m6A) reader that regulates mRNA translation by recognizing m6A modifications of these mRNAs. It has been suggested that eIF3a may play an important role in regulating translation initiation via m6A during infection when canonical cap-dependent initiation is inhibited. However, the death of animal model studies impedes our understanding of the functional significance of eIF3a in immunity and regulation in vivo. In this study, we investigated the in vivo function of eIF3a using eIF3a knockout and knockdown mouse models and found that eIF3a deficiency resulted in splenic tissue structural disruption and multi-organ damage, which contributed to severe sepsis induced by Lipopolysaccharide (LPS). Ectopic eIF3a overexpression in the eIF3a knockdown mice rescued mice from LPS-induced severe sepsis. We further showed that eIF3a maintains a functional and healthy immune system by regulating B cell function and quantity through m6A modification of mRNAs. These findings unveil a novel mechanism underlying sepsis, implicating the pivotal role of B cells in this complex disease process regulated by eIF3a. Furthermore, eIF3a may be used to develop a potential strategy for treating sepsis.
2.Clinical analysis of neuroendoscopic surgery for 30 children with cerebellar tumors
Fang LIU ; Xiaohua ZHANG ; Jun WANG ; Zhuo CHEN ; Nini AN ; Ying TAN ; Yu ZENG ; Jian LIU ; Jun LIU ; Junwu FU ; Ke DAI ; Chao WANG
Chinese Journal of Applied Clinical Pediatrics 2024;39(8):589-591
Objective:To explore the application value and surgical experience of neuroendoscopic resection for pediatric patients with cerebellar tumors.Methods:This was a case series study.The clinical data and outcomes of 30 pediatric patients with cerebellar tumors treated through neuroendoscopic surgery in the Department of Neurosurgery, the Guizhou Hospital of Shanghai Children′s Medical Center and Guizhou Provincial People′s Hospital from January 2021 to January 2024 were retrospectively analyzed.Results:Twenty-six patients underwent total resection, 3 patients underwent subtotal resection, and 1 patient underwent biopsy.Postoperative pathological findings showed 9 cases of medulloblastoma, 3 cases of ependymoma, 17 cases of astrocytoma (5 cases of World Health Organization Grade Ⅰ, 3 cases of Grade Ⅱ, and 9 cases of Grade Ⅲ), and 1 case of cerebellar benign lesion.During the perioperative period, malignant arrhythmia occurred and induced death in 1 case, cerebellar mutism occurred in 12 cases, and ataxia occurred in 22 cases.During the 1-36 months of follow-up, 2 cases developed communicating hydrocephalus at the 2 nd and the 6 th month, respectively, and improved after ventriculoperitoneal shunt; cerebellar mutism was relieved to varying degrees after an average postoperative follow-up period of (115±23) days(46-194 days), and ataxia was alleviated after an average postoperative follow-up period of (127±42) days(27-173 days).Tumors relapsed in 5 cases during the last follow-up. Conclusions:Neuroendoscopy provides an alternative to the microscope for experienced operators to achieve the surgical exposure requirements during the resection of pediatric cerebellar vermis tumors.
3. Effect of Gupi Xiaoji Decoction on mitochondrial structure and function of human hepatoma cell line HepG2
Zhuo LIU ; Shu-Xian YU ; Hui-Ying JIAN ; Pu-Hua ZENG ; Zhuo LIU ; Xiao-Ning TAN ; Ke-Xin LI ; Zhen ZHANG ; Zhuo LIU ; Xue-Fei TIAN ; Wen-Hui GAO
Chinese Pharmacological Bulletin 2023;39(4):781-786
Aim To observe the effect of Gupi Xiaoji Decoction (GPXJY) on the structure and function of mitochondria of human hepatoma cell HepG2 cells and explore its possible mechanism. Methods CCK8 was used to detect cell proliferation, Mito-Tracker Green fluorescence staining was used to observe the mitochondrial structure, flow cytometry was used to detect the membrane potential, Elisa was used to detect the ATP content, fluoroscopic electron microscopy was used to observe the microstructure changes, and high-content screening(HCS) was used to detect the related proteins. Results Fluorescence staining showed that GPXJY damaged the mitochondria of HepG2 cells and decreased the content of ATP. The results of flow cytometry showed that GPXJY could reduce the mitochondrial membrane potential of HepG2 cells. The results of electron microscope showed that GPXJY made the mitochondria of cancer cells swell and so on. HCS found that GPXJY significantly reduced the average fluorescence intensity of Bcl-2 in HepG2 cells, and significantly increased the average fluorescence intensity of apoptosis promoting proteins Bax, cytochrome-c, caspase-3 and cleaved-caspase-3, which was statistically significant. Conclusion GPXJY can regulate the structure and function of mitochondria in HepG2 cells.
4.Surgical Outcomes and Complications in 1 041 Patients Following Radical Cystectomy in a Single Center
Zhen-hua LIU ; Xiang-dong LI ; Ze-fu LIU ; Zi-ke QIN ; Kai YAO ; Hui HAN ; Fang-jian ZHOU ; Zhuo-wei LIU
Journal of Sun Yat-sen University(Medical Sciences) 2022;43(5):818-827
ObjectiveTo investigate the perioperative safety and complications of radical cystectomy (RC). MethodsThe clinicopathological indexes, postoperative complications and prognosis of patients who underwent RC at Sun Yat-sen University Cancer Centre from January 2001 to August 2020 were retrospectively collected and analyzed. Among them, patients from 2011 to 2020 were further analyzed and compared according to the open surgery group (ORC), laparoscopic group (LRC) and robot-assisted laparoscopic group (RARC). Independent sample t test, Chi-square test, K-M survival curve and other statistical methods were used to describe the complications and prognosis of patients, and Logistic regression was used to analyze the influencing factors of complications of RC. ResultsAmong the 1041 patients who underwent RC surgery from 2001 to 2020, the median age was 63 (55-69) years. In terms of the gender ratio, men were the majority at 86 percent. Compared with that of the first 10 years, the complication rate of the second 10 years decreased significantly (37.4% vs. 26.7%). Complications of 667 patients who underwent RC surgery were analyzed from 2010 to 2020, with a median follow-up of 34 months. A total of 415 patients were enrolled in the ORC group, 161 in the LRC group, and 91 in the RARC group. Ileal conduit (659 cases, 63.3%) accounted for the highest proportion of all urinary diversion methods, while orthotopic neobladder accounted for the second (343 cases, 32.9%). The incidence of all grade complications was 30.5%, and the most common complication was urinary complications. The incidence of total complications and grade ≥3 complications in the ORC group was higher than that in the LRC and RARC groups (Total complications: ORC, 30.8%; LRC,21.1%, RARC,24.2%; P=0.047; Grade ≥3 complications: ORC, 14.7%; LRC,9.3%; RARC,6.6%; P=0.043). ConclusionsWith the improvement of surgical techniques and experience, the incidence of recent postoperative complications after radical resection of bladder cancer in our center has decreased. Compared with open surgery, minimally invasive surgery has some advantages in reducing the complication rate.
5.Minimal clinically important difference of the frequency of bowel movement for patients with chronic severe functional constipation treated with acupuncture.
Yan-Ke AI ; Zhi-Shun LIU ; Bao-Yan LIU ; Yan-Hong ZHANG ; Yang LI ; Hai-Shu SUN ; Xue CAO ; Jia LIU ; Zhuo-Xin YANG ; Hai-Bo YU ; Xing-Xian HUANG ; Li-Yun HE
Chinese Acupuncture & Moxibustion 2022;42(11):1247-1250
OBJECTIVE:
To estimate the minimal clinically important difference (MCID) of the frequency of bowel movement for the patients with chronic severe functional constipation treated with acupuncture so as to provide the evidence for the clinical decision.
METHODS:
In this study, 813 patients with chronic severe functional constipation treated with acupuncture in two previous randomized controlled trials were included. Through the anchor-based method (anchored by the item 28 "satisfaction with previous treatment" of the patient assessment of constipation-quality of life [PAC-QOL]) and the distribution-based method, the MCID of the weekly frequency of complete spontaneous bowel movement (CSBM) and spontaneous bowel movement (SBM) was analyzed statistically in the patients.
RESULTS:
The MCID of the mean weekly frequency of CSBM and SBM was 1.3 times and 1.6 times in patients with chronic severe functional constipation treated with acupuncture, respectively.
CONCLUSION
The mean increase of the weekly CSMB is ≥ 1.3 times and that of SBM is ≥ 1.6 times after treatment when compared with the baseline respectively, suggesting the clinical significance.
Humans
;
Quality of Life
;
Minimal Clinically Important Difference
;
Treatment Outcome
;
Constipation/therapy*
;
Acupuncture Therapy
6.Circular RNA-encoded peptides and proteins: implications to cancer.
Shuang Ao KE ; Shengnan ZHAO ; Yu LIU ; Qing ZHUO ; Xiangwen TONG ; Yao XU
Chinese Journal of Biotechnology 2022;38(9):3131-3140
Circular RNA (circRNA) is a single-stranded circular closed RNA molecule formed from linear RNA through reverse splicing. circRNAs are stable, highly conserved, and tissue-specific. circRNAs can regulate physiological and pathological processes through various mechanisms such as formation of competing endogenous RNA and interaction with binding proteins. It has been recently revealed that circRNAs can be translated into peptides and proteins to participate in the initiation and development of cancer. circRNAs are promising diagnostic and prognostic markers for human cancers as well as potential drug targets for cancer therapy. This review summarized the research progresses related to circRNA-encoded peptides and proteins in a variety of cancers. These peptides and proteins are translated through two different mechanisms that depend on internal ribosome entry site and m6A, respectively. We also summarized the potential use of circRNA-encoded peptides and proteins in the diagnosis, treatment, prognosis and mechanistic studies of various cancers.
Humans
;
Internal Ribosome Entry Sites
;
Neoplasms/genetics*
;
Peptides, Cyclic
;
RNA/genetics*
;
RNA, Circular/genetics*
7.Molecular mechanisms of Gupi Xiaoji decoction inducing apoptosis of human hepatoma HepG2 cells.
Zhuo LIU ; Xue-Fei TIAN ; Wen-Hui GAO ; Xiao-Ning TAN ; Hui-Ying JIAN ; Ke-Xin LI ; Zhen ZHANG ; Pu-Hua ZENG
Chinese Journal of Applied Physiology 2022;38(3):247-251
Objective: To investigate the molecular mechanisms of Gupi Xiaoji decoction on apoptosis of human hepatoma cells HepG2. Methods: HepG2 cells were divided into 4 groups: control group (Control), blank serum group (Blank), Gupi Xiaoji Yin serum group (GPXJY) and cisplatin group (Positive). Eight duplicate holes were set in each group. After treated with Gupi Xiaoji Decoction-containing serum or cisplatin for 24 hours, the cell viability, the number of viable cells, the state of apoptosis, the cell cycle and the mitochondrial membrane potential were detected, and the level of lipid peroxidation (MDA) and glycolysis rate of the cells were detected. The expressions of apoptotic Bax, Bcl-2, and Caspase-3 proteins, and the contents of triacylglycerol (TG), cholesterol (TC), pyruvate and glucose in the cell supernatant were detected. Results: Compared with the control group, in the GPXJY group, the inhibition rate was increased (P<0.05), the number of cells was decreased, the number of apoptosis-positive cells was increased (P<0.01), the number of cells in the G1 phase was increased significantly (P<0.05), and the cell membrane potential was decreased (P<0.05,P<0.01), the glycolytic function was inhibited significantly, the MDA level was increased, the expressions of Bax and Caspase-3 in the GPXJY group were increased, and the expression of Bcl-2 was decreased (P<0.05, P<0.01). In cell supernatant, the TC, TG and glucose contents were decreased significantly, and the pyruvate content was increased significantly (P<0.05,P<0.01). Conclusion: Gupi Xiaoji Decoction can induce apoptosis of HepG2 cells and may play a role in energy metabolism.
Apoptosis
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Carcinoma, Hepatocellular
;
Caspase 3/metabolism*
;
Cisplatin
;
Drugs, Chinese Herbal
;
Glucose
;
Hep G2 Cells
;
Humans
;
Liver Neoplasms
;
Proto-Oncogene Proteins c-bcl-2/metabolism*
;
Pyruvates
;
bcl-2-Associated X Protein/metabolism*
8.Effect of Gupi Xiaoji Decoction on Pyroptosis of HepG2.2.15 Cells Based on Network Pharmacology and Molecular Docking
Hui-ying JIAN ; Wen-hui GAO ; Xiao-ning TAN ; Zhuo LIU ; Zhen ZHANG ; Ke-xin LI ; Pu-hua ZENG
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(6):159-166
ObjectiveTo screen the active antitumor components of Gupi Xiaoji decoction by network pharmacology and molecular docking based on the pyroptosis mediated by cysteinyl aspartate-specific protease 1 (Caspase-1) and explore its molecular mechanism in intervening in the pyroptosis of HepG2.2.15 cells through in vitro experiments. MethodThe compounds and targets of Gupi Xiaoji decoction were screened out by Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP) to obtain the corresponding gene symbols. The targets of Caspase-1 were collected from GeneCards,online mendelian inheritance in man(OMIM),PharmGKB,and TTD,and the compound-gene target regulatory network was constructed by Cytoscape. The protein-protein interaction(PPI) network was established and analyzed by STRING. The mechanism of the effective components of Gupi Xiaoji decoction on Caspase-1 was predicted by gene ontology(GO) functional enrichment and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment analyses. The molecular docking was verified with AutoDock Vina. The plasma medicated with Gupi Xiaoji Decoction was prepared and HepG2.2.15 cells were cultured in vitro. HepG2.2.15 cells were divided into a blank plasma group,a VX-765 group,a VX-765+medicated plasma group, and a medicated plasma group. After 48 hours of intervention with 15% medicated plasma, the expression and distribution of gasdermin D-N (GSDMD-N) on the surface of the cell membrane were detected by immunofluorescence staining. The release of lactic dehydrogenase (LDH), interleukin(IL)-1β,and IL-18 in the cell supernatant was measured by enzyme-linked immunosorbent assay(ELISA) kits. The expression of Caspase-1 and GSDMD-N was measured by Western blot. ResultThe mitogen-activated protein kinase 14 (MAPK14),MAPK1,protein kinase B1 (Akt1), MAPK8, V-Jun sarcoma virus oncogene homolog (JUN), and TP53 screened by network pharmacology were the main targets. The compounds 7-hydroxy-5,8-dimethoxy-2-phenyl-chromone,wogonin,rhamnazin,moslosooflavone,isorhamnetin,7-O-methylisomucronulatol,formononetin,calycosin,luteolin,quercetin,kaempferol,β-sitosterol,and baicalein screened by network pharmacology were the main active components of Gupi Xiaoji decoction. Go enrichment analysis showed that multiple biological processes were involved, including responses to oxidative stress and metal ions,ubiquitin-like protein ligase binding,and phosphatase binding. KEGG pathway enrichment analysis showed MAPK pathway,nuclear factor(NF)-κB pathway,p53 pathway, and hypoxia-inducible factor-1(HIF-1) pathway were involved. Molecular docking showed that the targets had good binding with the components. In vitro experiments displayed that compared with the blank plasma group,the VX-765 group showed weakened GSDMD-N fluorescence signal,reduced release of LDH,IL-1β,and IL-18,and declining expression of Caspase-1 and GSDMD-N(P<0.01), and the medicated plasma group showed increased GSDMD-N fluorescence signal, increased release of LDH,IL-1β,and IL-18,and up-regulated expression of Caspase-1 and GSDMD-N(P<0.01). ConclusionGupi Xiaoji Decoction can induce the pyroptosis of HepG2.2.15 cells by regulating Caspase-1 through multiple targets and multiple pathways.
9.Epidemiological study of bone and joint injury based on urban medical insurance database.
Si Wei DENG ; Ze Yi CHEN ; Zhi Ke LIU ; Jian WANG ; Lin ZHUO ; Shuang Qing GAO ; Jia Kuo YU ; Si Yan ZHAN
Journal of Peking University(Health Sciences) 2020;52(3):527-534
OBJECTIVE:
To estimate the prevalence rate of bone and joint injury in China and to describe the three-dimension distribution of the disease (area, time and people).
METHODS:
Based on a cross-sectional design, a retrospective study was conducted by using Chinese basic medical insurance database from January 1, 2013 to December 31, 2017 to analyze the epidemiological characteristics of bone and joint injury. The prevalence rate of bone and joint injury in each city was calculated, and then using meta-analyses to estimate the pooled prevalence of each area and the whole country. The pooled prevalence rates were compared among the different groups of populations, in terms of geographical area, time and population characteristics (age and gender).
RESULTS:
A total of 28 419 264 subjects were included in this study, including 705 793 patients with bone and joint injury. From 2013 to 2017, in Chinese basic medical insurance database, the overall prevalence rate of bone and joint injury was 141.5(95%CI: 90.4-203.7) per 10 000 population, and the prevalence rates of non-specific or polyarticular disease, knee disease, and shoulder disease were 101.6 (95%CI: 63.5-148.4)per 10 000 population, 22.5(95%CI:15.1-31.4)per 10 000 population and 10.9 (95%CI: 6.4-16.4)per 10 000 population. The prevalence rates varied across the areas, the highest rate was observed in North China, with the prevalence of 310.6 (95%CI: 12.6-989.7) per 10 000 population, and the lowest rate was observed in Southwest China, with the prevalence of 59.0 (95%CI: 37.5-85.2) per 10 000 population. The prevalence rate of bone and joint injury increased over the study period, from 111.1 (95%CI: 56.0-182.5)per 10 000 population in 2013 to 175.5 (95%CI: 116.8-245.5)per 10 000 population in 2017. The prevalence of bone and joint injury in the female population was 149.1 (95%CI: 94.2-215.9) per 10 000 population, which was higher than that of men [133.6(95%CI: 86.2-190.9) per 10 000 population]. The higher prevalence of knee disease, unspecified or polyarticular disease, and bone and joint injury were observed in people aged 60 years and older, while the prevalence of shoulder disease peaked in 40-59 years old people [20.6 (95%CI: 12.5-30.5) per 10 000 population].
CONCLUSION
This study reported a relative low prevalence of bone and joint injury in China from 2013 to 2017. The prevalence increased over the study period, and the highest prevalence rate was observed in North China. The prevalence rate showed differences among different groups of populations, and higher rates were observed in females and people aged 60 years and older.
Adult
;
China
;
Databases, Factual
;
Female
;
Humans
;
Insurance, Health
;
Male
;
Middle Aged
;
Prevalence
;
Retrospective Studies
;
Urban Population
10.Physical Activities and Its Influential Factors for Children with Intellectual Disabilities
Mei WANG ; Jun SHI ; Zhuo-Ying QIU ; An-Qiao LI ; Xin LI ; Yong ZHONG ; Ke HUANG ; Guo-Xiang WANG ; Qiao-Yan LIU ; Tian-Li ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2019;25(1):29-33
Objective To analyze the current status of physical activities for children with intellectual disabilities based on ICF, to discuss the effects of physical activities on the health, and the approaches and its precautions.Methods The theory and method of ICF had been adopted. Literature review and theoretical research methods were implemented.Results In the way of participating physical activity, children with intellectual disabilities would improve not only their physical fitness, but also their mood and quality of life, and reduce their health risks.Conclusion Children with intellectual disabilities faced barriers in physical activities. It recommended to develop policies and provide support and guidance services to promote their participation of physical activities. It is necessary to develop policies to encourage children with intellectual disabilities to participate in community-based physical activities and provide adaptive facility and equipment, guidance and supportive services.

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