1.Terms Related to The Study of Biomacromolecular Condensates
Ke RUAN ; Xiao-Feng FANG ; Dan LI ; Pi-Long LI ; Yi LIN ; Zheng WANG ; Yun-Yu SHI ; Ming-Jie ZHANG ; Hong ZHANG ; Cong LIU
Progress in Biochemistry and Biophysics 2025;52(4):1027-1035
Biomolecular condensates are formed through phase separation of biomacromolecules such as proteins and RNAs. These condensates exhibit liquid-like properties that can futher transition into more stable material states. They form complex internal structures via multivalent weak interactions, enabling precise spatiotemporal regulations. However, the use of inconsistent and non-standardized terminology has become increasingly problematic, hindering academic exchange and the dissemination of scientific knowledge. Therefore, it is necessary to discuss the terminology related to biomolecular condensates in order to clarify concepts, promote interdisciplinary cooperation, enhance research efficiency, and support the healthy development of this field.
2.Recent progress in the development of inhibitors of the Lassa virus
Zhen-Lin LIU ; Zhi-Hao LI ; Qi LIU ; Cong WANG
Chinese Journal of Zoonoses 2024;40(6):578-582,589
Lassa virus(LASV),a member of Arenaviridae family,is the cause of severe acute hemorrhagic fever,known as Lassa fever,which has an overall fatality rate of 1%,but up to 15%in hospitalized patients.LASV is mainly endemic in West Africa.At present,there is no approved drug or vaccine for LASV,and treatment is limited to ribavirin in the early dis-ease stage.Although some drugs have entered the clinical stage,most have been studied in cellular and animal models.Accord-ing to the Centers for Disease Control and Prevention,LASV is a Class A pathogen due to a high mortality rate and limited treatment options.The World Health Organization has identified Lassa fever as a top priority for research and development.This article reviews recent progress in the development of LASV inhibitors.
3.Antiviral activity and mechanism of pinecone extract of pinus yunnanensis against Lassa virus infection
Zhen-Lin LIU ; Man-Lin ZHANG ; Qi LIU ; Cong WANG
Chinese Journal of Zoonoses 2024;40(10):905-912
A Lassa pseudovirus system and Lassa cell-cell fusion were used to detect the anti-LASV activity of Pineta crude extract.The Lassa pseudovirus system was constructed with the lentivirus skeleton plasmid PNL-4-3.Luc.R-E.After transfec-tion into 293T cells with Lassa-coated protein granules,a fake Lassa virus containing luciferase reporter gene was generated.The anti-LASV activity of pine tar crude extract was detected in a BSL-2 biosafety laboratory.Second,a Lassa cell-cell fusion model was constructed by enzymatically cutting,linking,and identifying existing plasmids to obtain recombinant plasmids,which were transfected into 293T cells to obtain fluorescent cells with Lassa envelope protein on the surface.These cells were mixed with Huh-7 target cells in 96-well plates,and membrane fusion occurred at 37 ℃ under acidic conditions.Subsequently,a membrane fusion system was used to detect the anti-LASV activity of pine tar crude extract.The specific period of action of pine tar crude extract on LASV pseudovirus infection was analyzed,and the antiviral target of pine tar crude extract was an-alyzed with time of addition and time of removal tests.The protein content of p24 was detected by western blotting to determine the viral cleavage effect of pine tar crude extract.The crude ex-tract of pine tar effectively inhibited LASV infection.Four lineages of LASV pseudoviruses(LASV lineages Ⅰ,Ⅱ,Ⅲ,and Ⅳ)were used to infect target cells,and the IC50 values were as follows:42.06 μg/mL,22.26 μg/mL,80.57 μg/mL,and 19.32 μg/mL inhibited the cell-cell fusion activity mediated by LASV envelope protein(GPC),and the IC50 values were as fol-lows:122.9 μg/mL,64.43 μg/mL,90.05 μg/mL and 195.6 μg/mL.The crude extract of Songta had broad-spectrum antiviral effects,and effectively inhibited infection with arenavirus,including lymphocytic choriomeningitis virus,Luho virus,and Junin virus pseudovirus.The IC50 values were 2.72 μg/mL,12.02 μg/mL,and 29.95 μg/mL,respectively.The crude extract of pine tar acted in early stages of LASV infection.The inhibitory rate after was significantly higher with addition of crude extract within 2 h rather than 4 h after infection,and the adsorption and fusion of LASV pseudovirus were largely blocked.The crude extract of pine tar had no cleavage effect on LASV pseudovirus,and no significant difference in p24 protein content was ob-served between the treated group and the untreated group.This study confirmed that crude Yunnan pine tree extract effectively inhibits LASV infection in vitro,and has broad-spectrum antiviral effects.The experimental results showed that crude pine tar extract acts mainly in early stages of viral infection,by blocking viral adsorption and fusion.These findings provide a reference for further research on the inhibitory effects of pinecone extract toward LASV.
4.Establishment and effect evaluation of multidisciplinary team-based blood glucose management model with the participation of clinical pharmacists in a hospital
Lin CONG ; Fang SONG ; Da WANG ; Yi LU
Journal of Shenyang Medical College 2024;26(4):389-392,448
Objective:To establish a multidisciplinary team-based blood glucose management model with the participation of clinical pharmacists,and to evaluate the effect of this model on blood glucose management in hospitalized patients.Methods:A clinical pharmacists involved multidisciplinary team-based blood glucose management model was built to manage the blood glucose of inpatients.A total of 45 patients were employed and randomly divided into two groups,including common management group and multidisciplinary team-based management group.The fasting and 2-hour postprandial blood glucose levels at the fifth day after treatment,the length of hospital stay,adverse events,and medication compliance within 2 months after discharge between the two groups were compared.Results:The fasting blood glucose of the study group after 5 d treatment had no significant difference with the control group(P>0.05).The 2-hour postprandial blood glucose of the study group was significantly lower and closer to the target level than that of the control group(P<0.05).The length of hospital stay in the study group was significantly shorter than that in the control group,and the medication compliance within 2 months after discharge was significantly higher than that in the control group(P<0.05).There was no significant difference in adverse events between the two groups(P>0.05).Conclusion:The clinical pharmacists involved multidisciplinary team-based blood glucose management model has a definite effect on the blood glucose management of inpatients,including accelerating blood glucose attainment,effectively shortening the length of hospital stay,and significantly improving the medication compliance of inpatients.
5.11C-methionine PET/CT radiomics model for evaluating isocitrate dehydrogenase1 status of glioblastoma
Yue PAN ; Haodan DANG ; Xiaolin MENG ; Cong ZHANG ; Yu LIN ; Ruimin WANG ; Baixuan XU
Chinese Journal of Medical Imaging Technology 2024;40(6):832-837
Objective To explore the value of 11C-methionine(MET)PET/CT radiomics model for evaluating isocitrate dehydrogenase1(IDH1)status of glioblastoma.Methods Data of 157 patients with glioblastoma who underwent 11C-MET PET/CT examination,including 68 cases of IDH1 mutation and 89 cases of IDH1 wild-type were retrospectively analyzed.The patients were divided into training set(n=125)and validation set(n=32)at the ratio of 8:2.Based on PET/CT images,lesions ROI were delineated and radiomics features were extracted and screened to establish radiomics models with logistic regression(LR),support vector machine(SVM)and decision trees(DT),respectively.Meanwhile,the nomogram based on patients'age and radiomics features was drawn.The efficacy of radiomics models and clinical-radiomics nomogram for evaluating IDH1 status were comparatively observed.Results The area under the curve(AUC)of DT radiomics model for evaluating IDH1 status of glioblastoma in training set was 0.910,higher than that of LR(0.697)and SVM(0.698)models(both P<0.05).In validation set,the AUC of DT model for evaluating IDH1 status of glioblastoma was 0.805,which was higher than that of LR model(0.740)and clinical-radiomics nomogram(0.704)(both P<0.05).Conclusion 11C-MET PET/CT radiomics model based on DT was helpful for evaluating IDH1 status of glioblastoma.
6.Formulation and technology of oxymatrine-astragaloside IV coloaded liposomes based on quality by design
Liang-yin WEI ; Xia LI ; Hong WANG ; Lin-qing HUANG ; Cong-yan LIU ; Yan CHEN
Acta Pharmaceutica Sinica 2024;59(1):232-242
To optimize the formulation and technology of oxymatrine-astragaloside IV coloaded liposomes (Om-As-Lip) based on quality by design (QbD) principles, and further to verify the feasibility of its amplification process, Om-As-Lip was prepared by ethanol injection combined with pH gradient method. The critical material attributions of Om-As-Lip were evaluated by dual-risk analysis tools and Plackett-Burman design (PBD). The formulation of Om-As-Lip was further optimized with the Box-Behnken design (BBD). The design space was also established based on the contour plots of BBD. In order to further investigate the amplification process of Om-As-Lip, the critical process parameters of high-pressure homogenization (HPH) were optimized by single-factor test, and the quality of the final product was also evaluated. The results of risk analysis and PBD confirmed that the astragaloside concentration, cholesterol concentration, and phospholipid ratio (HSPC∶SPC) were the ctitical material attributes. The model established by BBD had a good predictability, and the optimized mass ratio of As to phospholipids was 1∶40, cholesterol to phospholipids was 1∶10, HSPC to SPC was 51∶9. The design space of Om-As-Lip was as follows: the ratio of cholesterol to phospholipids was 1∶12-1∶5 and HSPC to SPC was 1∶7-17∶3. The optimized high-pressure homogenization pressure was 600 bar, temperature was 4 ℃, and cycle times was 6 times for HPH-Om-As-Lip. The quality of Om-As-Lip prepared based on the QbD concept can meet the expected CQAs, and the formulation and technology established can provide a reliable experimental basis for its future development and applications.
7.Pan-cancer analysis revealed the correlation between SPP1 and clinical prognosis of multiple tumors
Jie CHEN ; Mo ZHANG ; Zhan-Yu MEN ; Lin CHEN ; Lu WANG ; Xiao-Cong PANG
The Chinese Journal of Clinical Pharmacology 2024;40(12):1827-1831
Objective This study utilized bioinformatics to investigate the role of secreted phosphoprotein 1(SPP1)in tumors and assess its differential expression and prognostic significance across human cancers.Method Cancer sample data was sourced from the Cancer Genome Atlas(TCGA)and Genotype-tissue Expression(GTEx)database.Analysis of gene expression differences in pan-cancer involving SPP1 utilized the CPTAC database,correlations between SPP1 and patient survival outcomes were assessed using GEPIA2,and alterations in gene mutations for SPP1 across 32 cancers were appraised via the CbioPortal tool.Results Across 32 tumor types,SPP1 mRNA disparity is observed in eight cancer types,decreasing only in clear cell renal carcinoma while increasing in other malignancies.Expression in tumor stage is specific;SPP1 mRNA negatively correlates with patient overall survival(OS)and disease-free survival(DFS);low methylation associated with SPP1 gene activity promotes oncogene activation,impacting tumor cell generation,apoptosis,and proliferation,thereby influencing cancer progression;SPP1 primarily exhibits missense mutations that correlate with poor prognoses in prostate and stomach cancer patients.Conclusion Through pan-cancer studies,SPP1's selective expression in human malignancies was validated and found to be strongly correlated with clinical prognosis.This suggests that SPP1 is a viable target for cancer prognostic precision.
8.Immunoinfiltration correlation analysis of secreted phosphoprotein SPP1 in multiple tumors
Jie CHEN ; Lin CHEN ; Yan-Lun GU ; Mo ZHANG ; Zhan-Yu MEN ; Lu WANG ; Xiao-Cong PANG
The Chinese Journal of Clinical Pharmacology 2024;40(13):1968-1971
Objective To utilize bioinformatic approaches to elucidate the correlation between secreted phosphoprotein 1(SPP1)and immune infiltration in various malignancies,elucidating the mechanism of gene function in cancer-immune cell interplay.Methods Cancer samples were derived from the Cancer Genome Atlas(TCGA)and Genotype-tissue Expression(GTEx)database,examining SPP1 expression difference between tumors and normal tissues using Gene Expression Profiling Interactive Analysis(GEPIA2),and its correlation with different immune cells in extracellular matrix via TIMER2 Database.SPP1's association with interacting molecules was scrutinized on the STRING website,followed by assessment of its distinct functional state across various cancers from Cancer Single-cell State Atlas Database(Cancer SEA).Results In 32 tumor types,SPP1 mRNA is significantly elevated in 23 types of cancers and correlates heavily with fibroblast,integrin family,and CD44.Furthermore,the SPP1 gene exhibits profound specificity in tumor functions such as vascular invasion,metastasis,DNA damage,and repair.Conclusion Specific expression of SPP1 in tumors signifies a significant correlation with tumor immune cells in the extracellular matrix,promoting tumor progression and invasion.This suggests that targeted monitoring of SPP1 could serve as a prospective cancer diagnostics/therapeutics biomarker.
9.Association of alcohol consumption with aortic aneurysm and dissection risk:results from the UK Biobank cohort study
Liang YAOWEN ; Zou GUOXIANG ; Wang DINGCHEN ; Zeng WEIYUE ; Zhang JIARUI ; Huang XIAORAN ; Lin MIAO ; Mai CONG ; Song FEI'ER ; Zhang YUELIN ; Meng JINXIU ; Feng HONGLIANG ; Huang YU ; Li XIN
World Journal of Emergency Medicine 2024;15(6):465-474
BACKGROUND:Previous studies have reported inconsistent results with positive,negative,and J-shaped associations between alcohol consumption and the hazard of aortic aneurysm and dissection(AAD).This study aimed to examine the connections between weekly alcohol consumption and the subsequent risk of AAD. METHODS:The UK Biobank study is a population-based cohort study.Weekly alcohol consumption was assessed using self-reported questionnaires and the congenital risk of alcohol consumption was also evaluated using genetic risk score(GRS).Cox proportional hazards models were used to estimate hazard ratios(HRs)with 95%confidence intervals(CIs)for the associations between alcohol consumption and AAD.Several sensitivity analyses were performed to assess the robustness of the results. RESULTS:Among the 388,955 participants(mean age:57.1 years,47.4%male),2,895 incident AAD cases were documented during a median follow-up of 12.5 years.Compared with never-drinkers,moderate drinkers(adjusted HR:0.797,95%CI:0.646-0.984,P<0.05)and moderate-heavy drinkers(adjusted HR:0.794,95%CI:0.635-0.992,P<0.05)were significantly associated with a decreased risk of incident AAD.Interaction-based subgroup analysis revealed that the protective effect of moderate drinking was reflected mainly in participants younger than 65 years and women. CONCLUSION:Our findings support a protective effect of moderate alcohol consumption on AAD,but are limited to participants younger than 65 years and women.
10.Association of alcohol consumption with aortic aneurysm and dissection risk:results from the UK Biobank cohort study
Liang YAOWEN ; Zou GUOXIANG ; Wang DINGCHEN ; Zeng WEIYUE ; Zhang JIARUI ; Huang XIAORAN ; Lin MIAO ; Mai CONG ; Song FEI'ER ; Zhang YUELIN ; Meng JINXIU ; Feng HONGLIANG ; Huang YU ; Li XIN
World Journal of Emergency Medicine 2024;15(6):465-474
BACKGROUND:Previous studies have reported inconsistent results with positive,negative,and J-shaped associations between alcohol consumption and the hazard of aortic aneurysm and dissection(AAD).This study aimed to examine the connections between weekly alcohol consumption and the subsequent risk of AAD. METHODS:The UK Biobank study is a population-based cohort study.Weekly alcohol consumption was assessed using self-reported questionnaires and the congenital risk of alcohol consumption was also evaluated using genetic risk score(GRS).Cox proportional hazards models were used to estimate hazard ratios(HRs)with 95%confidence intervals(CIs)for the associations between alcohol consumption and AAD.Several sensitivity analyses were performed to assess the robustness of the results. RESULTS:Among the 388,955 participants(mean age:57.1 years,47.4%male),2,895 incident AAD cases were documented during a median follow-up of 12.5 years.Compared with never-drinkers,moderate drinkers(adjusted HR:0.797,95%CI:0.646-0.984,P<0.05)and moderate-heavy drinkers(adjusted HR:0.794,95%CI:0.635-0.992,P<0.05)were significantly associated with a decreased risk of incident AAD.Interaction-based subgroup analysis revealed that the protective effect of moderate drinking was reflected mainly in participants younger than 65 years and women. CONCLUSION:Our findings support a protective effect of moderate alcohol consumption on AAD,but are limited to participants younger than 65 years and women.

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