1.Effects of Siglec-E on parthenolide inhibiting microglia M1 polarization and targeting MAPK/NF-κB pathway
Wenying FU ; Pengbo WANG ; Xiangyu TANG ; Liyuan FENG ; Yuting HUANG ; Peng LI
Journal of Army Medical University 2024;46(7):651-660
Objective To explore the impact of the sialic acid binding lectin-E(Siglec-E)on the inhibitory properties of parthenolide(PTL)against lipopolysaccharide(LPS)-induced M1 polarization of microglia(BV2).Methods ①Single cell sequencing data of Siglece related mouse brain tissue was obtained from Gene Expression Omnibus(GEO)database and divided into the WT group(n=3)and the Siglece-/-group(n=4).The microglia cells were screened,and the enrichment analysis was performed to analyze related differential genes and pathways.BV2 cells were constructed by the shRNA interference technique and were divided into NC-shRNA and Siglece-shRNA to detect the expression level of Siglec-E(Siglece).② NC-shRNA and Siglece-shRNA cells were respectively divided into the Control group,LPS group,PTL group and PTL+LPS group(n=3).The mRNA levels of markers of M1 polarization in microglia,iNOS,IL-1 β and IL-6,were detected by RT-qPCR.Siglecefl/fl and Cx3cr1cre mice were mated to obtain microglia-specific Siglece deletion(Siglecefl/fl×Cx3cr1cre)mice,and LPS-induced neuroinflammation model was established.③ Nine WT and Siglecefl/fl×Cx3cr1cre male mice were assigned to the Control group,LPS group and PTL+LPS group(n=3).RT-qPCR,immunofluorescence assay and Western blotting were used to verify the knock-out effect and polarization-related pathways,and to investigate the mechanism of Siglec-E affecting PTL inhibition of M1 polarization of microglia.Results Compared with the NC-shRNA group,the expression of Siglec-E in the Siglece-shRNA group was significantly decreased(P<0.01),indicating that the Siglec-E knock-down cell model was successfully established.With the stimulation of LPS,mRNA levels ofiNOS,IL-1 β and IL-6 were significantly up-regulated compared with the Control group both in shRNA cells and Siglece-shRNA cells(P<0.01).With the influence of PTL and LPS,the markers of M1 polarization in NC-shRNA cells mentioned before were significantly decreased(P<0.05),while for Siglice-shRNA cells,there were no significant changes in the markers of M1 polarization.PTL inhibited the phosphorylation of JNK and IκB protein(P<0.01)and the nuclear translocation of NF-κB in BV2 cells,down-regulated Siglec-E,and weakened the inhibitory effect.Compared with mice in the WT group,the expression of Siglec-E in microglia of Siglecefl/fl×Cx3cr1cre mice was decreased significantly(P<0.01),and the inhibitory effect of PTL on the phosphorylation of NF-κB in microglia of Siglecefl/fl×Cx3cr1cre mice was also decreased.Conclusion The absence of Siglec-E in microglia attenuates the inhibition of M1 polarization by the MAPK/NF-κB pathway targeted by PTL.
2.The Difficulties and Methodological Suggestions for the Recommendation Formation of Clinical Practice Guidelines of Traditional Chinese Medicine
Yicheng GAO ; Rui CAO ; Zhihan LIU ; Yuting FENG ; Qianyun CHAI ; Minjing LUO ; Ruyu XIA ; Yutong FEI
Journal of Traditional Chinese Medicine 2024;65(3):251-255
Currently, there are many difficulties in formulating recommendations of traditional Chinese medicine (TCM) clinical practice guidelines. This paper analyzed and summarized the unique or prominent difficult issues in the formulation of recommendations faced by TCM guidelines, such as experts' professional background and experience bringing about the preferance from the academic emotion, inconsistency between different academic schools making it difficult to reach consensus, lack of guiding principles of the decision weight of different dimensions for recommendations. Therefore, methodological suggestions have been put forward, including organizing parallel TCM and western medicine consensus group, improving the method of combining TCM and western medicine paradigm, attaching great importance to the evidence-based governance of academic schools, and promoting the research on different dimensions for recommendation formulation, which may provide a methodological reference for the guideline development.
3.Effects of PATL1 on the proliferation and migration of gastric cancer cells and its mechanism of action
Zeyu Xu ; Zhiyong Lai ; Yifan Ren ; Feng Wu ; Yuting Peng ; Jun Xu
Acta Universitatis Medicinalis Anhui 2024;59(1):133-139
Objective :
Objective
Methods :
The expression levels of PATL1 in pancar- cinoma,gastric cancer and normal tissues were analyzed by TCGA database.The expression level of PATL1 in 40 human gastric cancer tissues and paired adjacent tissues was evaluated by quantitative real-time PCR (RT-qPCR) . The Kaplan-Meier Plotter database was used to analyze the prognosis of PATL1 in gastric cancer patients.The gas- tric cancer cell line AGS was transfected with PATL1 interference vector,and the interference effect was evaluated by RT-qPCR. The effects of PATL1 on the proliferation and migration of AGS were detected by cell counting kit-8 ( CCK-8) ,Transwell test and scratch healing test.The effects of interference with PATL1 on the expression of cel- lular-myelocytomatosis viral oncogene ( c-Myc) and autophagy related 7 ( ATG7) proteins in gastric cancer cells were detected by Western blot assay.
Results :
RT-qPCR showed that the expression of PATL1 in human gastric cancer tissue was higher than that in normal gastric tissue (P<0. 001) ,and PATL1 was correlated with the progno- sis of patients with enteric gastric cancer (P<0. 000 1) .After PATL1 was knocked down,the number of prolifera- ting and migrating gastric cancer cells decreased (P<0. 05) .Western blot test results showed that the expression level of ATG7 protein decreased after PATL1 was knocked down (P<0. 05) .
Conclusion
PATL1 may inhibit the proliferation and migration of gastric cancer cells through crosstalk with c-Myc and ATG7 .
4.Rhinosinusitis in children and its impact on bronchial asthma
Yuting GENG ; Yu MIAO ; Jinrong WANG ; Jiangnan FENG
International Journal of Pediatrics 2024;51(10):689-693
Asthma and rhinosinusitis are both common respiratory diseases in children,with a high rate of co-morbidity,and both affect each other.The theory of “same airway,same disease” has been confirmed in recent years.However,rhinosinusitis is often underdiagnosed,and correctly recognizing,diagnosing and treating rhinosinusitis in a timely manner is conducive to asthma control.Both rhinosinusitis and asthma are highly heterogeneous diseases,with diverse and complex inflammatory endotypes and biomarkers,including eosinophils and neutrophils.This article reviews the epidemiology of rhinosinusitis and asthma co-morbidities,the inflammatory endotypes and biomarkers of rhinosinusitis,the impact of rhinosinusitis on asthma and its mechanism of influence,and the impact of treating rhinosinusitis on asthma control.
5.Fangchinoline induces antiviral response by suppressing STING degradation
Wang JINYONG ; Xie FANG ; Jia XIN ; Wang XUEJIAO ; Kong LINGDONG ; Li YIYING ; Liang XUE ; Zhang MEIQI ; He YUTING ; Feng WANDI ; Luo TONG ; Wang YAO ; Xu ANLONG
Journal of Pharmaceutical Analysis 2024;14(6):902-913
The stimulator of interferon genes(STING),an integral adaptor protein in the DNA-sensing pathway,plays a pivotal role in the innate immune response against infections.Additionally,it presents a valuable therapeutic target for infectious diseases and cancer.We observed that fangchinoline(Fan),a bis-benzylisoquinoline alkaloid(BBA),effectively impedes the replication of vesicular stomatitis virus(VSV),encephalomyocarditis virus(EMCV),influenza A virus(H1 N1),and herpes simplex virus-1(HSV-1)in vitro.Fan treatment significantly reduced the viral load,attenuated tissue inflammation,and improved survival in a viral sepsis mouse model.Mechanistically,Fan activates the antiviral response in a STING-dependent manner,leading to increased expression of interferon(1FN)and interferon-stimulated genes(ISGs)for potent antiviral effects in vivo and in vitro.Notably,Fan interacts with STING,preventing its degradation and thereby extending the activation of IFN-based antiviral responses.Collectively,our findings highlight the potential of Fan,which elicits antiviral immunity by suppressing STING degra-dation,as a promising candidate for antiviral therapy.
6.Correlation between the distribution of airborne pollen and the positive sIgE test in patients with allergic rhinitis in Taiyuan City in spring from 2022 to 2023
Jing ZHANG ; Yuting JIANG ; Lu GAO ; Dongdong YU ; Chan HE ; Huliang CUI ; Haojiang WANG ; Yan FENG
Chinese Journal of Preventive Medicine 2024;58(6):823-829
This study was to investigate the relationship between spring pollen distribution concentration, species and the detection results of air-borne pollen allergens in Taiyuan City, Shanxi Province during March to May 2022 and March to May 2023.A retrospective study was conducted in the Otorhinolaryngology Head and Neck Surgery Clinic of the First Hospital of Shanxi Medical University.Pollen particles will be monitored by gravity sedimentation method on the roof of the outpatient department of the First Hospital of Shanxi Medical University in downtown Taiyuan from March to May 2022-2023, and pollen species and quantity will be observed and recorded under an optical microscope.The air-borne pollen allergen detection results of all allergic rhinitis patients in the otolaryngology Head and Neck surgery Department of the First Hospital of Shanxi Medical University were extracted from the relevant outpatient system. SPSS software and Pearson correlation analysis were used to compare the correlation between the allergens and the dominant air-borne pollen monitoring results. Results are as follows: (1)A total of 18 species of spring pollen in Taiyuan City were monitored in 2022-2023, with 101 177.5 grains, and the dominant airborne pollen was poplar (16.69%) and pine (29.06%) pollen. The pollen of poplar (11.96%), elm (7.89%) and cypress (8.68%) were dominant in early spring; Pine (25.16%) pollen predominated in late spring. The two peaks of pollen dispersal in Taiyuan were in late March (15 479 grains) and early and mid May (15 094/15 343 grains).(2) The positive rates of allergens in serum specific IgE detection were: wormwood (46%, 248/541 cases), tree combination (26%, 143/541 cases), ragweed (19%, 101/541 cases), humulus scandens (9%, 49/541 cases).(3)There was a linear positive correlation between the positive rate of air-borne pollen allergens in allergic rhinitis patients in the Department of Otolaryngology Head and Neck Surgery in the First Hospital of Shanxi Medical University and the dominant air-borne pollen concentration in the same period ( P<0.05, r=0.999). In conclusion, two spring pollen dispersal peaks were formed in late March and early to mid May in Taiyuan City, and the dominant air-borne pollens were poplar and pine pollens. The positive rate of air borne pollen allergen sIgE showed that wormwood allergy was the highest.There was a positive correlation between the concentration of air-borne pollen and the positive rate of air-borne pollen allergens in patients with allergic rhinitis in the Department of otorhinolaryngology and head and neck surgery in Taiyuan in 2022 and 2023.The monitoring of pollen distribution in spring can provide an important scientific basis for clinical workers to formulate prevention and treatment plans for patients with allergic rhinitis in the season, and provide data reference for the epidemiological investigation of allergic diseases in Taiyuan in the future.
7.Exploration and validation of optimal cut-off values for tPSA and fPSA/tPSA screening of prostate cancer at different ages
Xiaomin LIU ; Hongyuan DUAN ; Dongqi ZHANG ; Chong CHEN ; Yuting JI ; Yunmeng ZHANG ; Zhuowei FENG ; Ya LIU ; Jingjing LI ; Yu ZHANG ; Chenyang LI ; Yacong ZHANG ; Lei YANG ; Zhangyan LYU ; Fangfang SONG ; Fengju SONG ; Yubei HUANG
Chinese Journal of Oncology 2024;46(4):354-364
Objective:To determine the total and age-specific cut-off values of total prostate specific antigen (tPSA) and the ratio of free PSA divided total PSA (fPSA/tPSA) for screening prostate cancer in China.Methods:Based on the Chinese Colorectal, Breast, Lung, Liver, and Stomach cancer Screening Trial (C-BLAST) and the Tianjin Common Cancer Case Cohort (TJ4C), males who were not diagnosed with any cancers at baseline since 2017 and received both tPSA and fPSA testes were selected. Based on Cox regression, the overall and age-specific (<60, 60-<70, and ≥70 years) accuracy and optimal cut-off values of tPSA and fPSA/tPSA ratio for screening prostate cancer were evaluated with time-dependent receiver operating characteristic curve (tdROC) and area under curve (AUC). Bootstrap resampling was used to internally validate the stability of the optimal cut-off value, and the PLCO study was used to externally validate the accuracy under different cut-off values.Results:A total of 5 180 participants were included in the study, and after a median follow-up of 1.48 years, a total of 332 prostate cancer patients were included. In the total population, the tdAUC of tPSA and fPSA/tPSA screening for prostate cancer were 0.852 and 0.748, respectively, with the optimal cut-off values of 5.08 ng/ml and 0.173, respectively. After age stratification, the age specific cut-off values of tPSA in the <60, 60-<70, and ≥70 age groups were 3.13, 4.82, and 11.54 ng/ml, respectively, while the age-specific cut-off values of fPSA/tPSA were 0.153, 0.135, and 0.130, respectively. Under the age-specific cut-off values, the sensitivities of tPSA screening for prostate cancer in males <60, 60-70, and ≥70 years old were 92.3%, 82.0%, and 77.6%, respectively, while the specificities were 84.7%, 81.3%, and 75.4%, respectively. The age-specific sensitivities of fPSA/tPSA for screening prostate cancer were 74.4%, 53.3%, and 55.9%, respectively, while the specificities were 83.8%, 83.7%, and 83.7%, respectively. Both bootstrap's internal validation and PLCO external validation provided similar results. The combination of tPSA and fPSA/tPSA could further improve the accuracy of screening.Conclusion:To improve the screening effects, it is recommended that age-specific cut-off values of tPSA and fPSA/tPSA should be used to screen for prostate cancer in the general risk population.
8.Comparison of the latest cancer statistics, cancer epidemic trends and determinants between China and the United States
Yuting JI ; Siwen LIU ; Yunmeng ZHANG ; Hongyuan DUAN ; Xiaomin LIU ; Zhuowei FENG ; Jingjing LI ; Zhangyan LYU ; Yubei HUANG
Chinese Journal of Oncology 2024;46(7):646-656
Objective:To provide supports for the cancer prevention and control strategies in China by comparing the disease burden, epidemic trends, 5-year relative survival rate and major determinants of common cancers between China and the United States.Methods:A descriptive secondary analysis was conducted using data extracted from the GLOBOCAN database, the Surveillance, Epidemiology, and End Results database, Global Burden of disease 2019 database, and previous studies. The main indicators included the cases of malignant tumors in different sites, the cases of deaths, the age-standardized incidence (world standard incidence) and mortality (world standard mortality), the 5-year relative survival rate, and population attributable fraction (PAF).Results:In 2022, an estimated 4.825 million new cases and 2.574 million deaths of malignant neoplasms in China. The world standard incidence rate (201.6/100 000) in China was lower than that in the United States (367.0/100 000), and the world standard mortality rate (96.5/100 000) was higher than that in the United States (82.3/100 000). Lung cancer ranked first in the disease burden of malignant tumors in China, the new cases and deaths accounted for 22.0% and 28.5% of all malignant tumors, respectively. The top three malignant tumors in China were breast cancer (11.5%), prostate cancer (9.7%) and lung cancer (9.5%), which were also among the top five causes of death. However, the second to fifth leading causes of death from malignant tumors in China were digestive system tumors (liver cancer 12.3%, stomach cancer 10.1%, colorectal cancer 9.3%, and esophageal cancer 7.3%). From 2000 to 2018, the world standard incidence of malignant tumors showed an increasing trend and the world standard mortality of malignant tumors showed a decreasing trend in China, while the world standard incidence and mortality of malignant tumors in the United States showed a significant decreasing trend after 2000. The incidence of breast cancer, colorectal cancer and thyroid cancer increased rapidly in China, while the incidence and mortality of stomach cancer, liver cancer and esophageal cancer decreased, but they still had a heavy disease burden. From 2003 to 2015, the overall 5-year relative survival rate of malignant tumors increased from 30.9% to 40.5% in China. However, with the exception of esophageal cancer, the 5-year relative survival rates of other major malignant tumors were lower than those in the United States. In 2019, the PAF of malignant tumors death attributable to potential modifiable risk factors was 48.3% in China, which was similar to the United States (49.8%). Of these, smoking was the most important attributable risk factor, and the PAF was more than 30% both in China and the United States. In addition, about 18.8% of malignant tumors were caused by preventable chronic infections, such as hepatitis B virus and Helicobacter pylori, while less than 4% of malignant tumors in the United States were caused by infection.Conclusions:China has made great progress in the prevention and treatment of malignant tumors, but it still faces a serious disease burden. The cancer spectrum is changing from developing countries to developed countries. We should pay attention to modifiable factors, take comprehensive measures, and prevent cancer scientifically.
9.Correlation between the distribution of airborne pollen and the positive sIgE test in patients with allergic rhinitis in Taiyuan City in spring from 2022 to 2023
Jing ZHANG ; Yuting JIANG ; Lu GAO ; Dongdong YU ; Chan HE ; Huliang CUI ; Haojiang WANG ; Yan FENG
Chinese Journal of Preventive Medicine 2024;58(6):823-829
This study was to investigate the relationship between spring pollen distribution concentration, species and the detection results of air-borne pollen allergens in Taiyuan City, Shanxi Province during March to May 2022 and March to May 2023.A retrospective study was conducted in the Otorhinolaryngology Head and Neck Surgery Clinic of the First Hospital of Shanxi Medical University.Pollen particles will be monitored by gravity sedimentation method on the roof of the outpatient department of the First Hospital of Shanxi Medical University in downtown Taiyuan from March to May 2022-2023, and pollen species and quantity will be observed and recorded under an optical microscope.The air-borne pollen allergen detection results of all allergic rhinitis patients in the otolaryngology Head and Neck surgery Department of the First Hospital of Shanxi Medical University were extracted from the relevant outpatient system. SPSS software and Pearson correlation analysis were used to compare the correlation between the allergens and the dominant air-borne pollen monitoring results. Results are as follows: (1)A total of 18 species of spring pollen in Taiyuan City were monitored in 2022-2023, with 101 177.5 grains, and the dominant airborne pollen was poplar (16.69%) and pine (29.06%) pollen. The pollen of poplar (11.96%), elm (7.89%) and cypress (8.68%) were dominant in early spring; Pine (25.16%) pollen predominated in late spring. The two peaks of pollen dispersal in Taiyuan were in late March (15 479 grains) and early and mid May (15 094/15 343 grains).(2) The positive rates of allergens in serum specific IgE detection were: wormwood (46%, 248/541 cases), tree combination (26%, 143/541 cases), ragweed (19%, 101/541 cases), humulus scandens (9%, 49/541 cases).(3)There was a linear positive correlation between the positive rate of air-borne pollen allergens in allergic rhinitis patients in the Department of Otolaryngology Head and Neck Surgery in the First Hospital of Shanxi Medical University and the dominant air-borne pollen concentration in the same period ( P<0.05, r=0.999). In conclusion, two spring pollen dispersal peaks were formed in late March and early to mid May in Taiyuan City, and the dominant air-borne pollens were poplar and pine pollens. The positive rate of air borne pollen allergen sIgE showed that wormwood allergy was the highest.There was a positive correlation between the concentration of air-borne pollen and the positive rate of air-borne pollen allergens in patients with allergic rhinitis in the Department of otorhinolaryngology and head and neck surgery in Taiyuan in 2022 and 2023.The monitoring of pollen distribution in spring can provide an important scientific basis for clinical workers to formulate prevention and treatment plans for patients with allergic rhinitis in the season, and provide data reference for the epidemiological investigation of allergic diseases in Taiyuan in the future.
10.Antiretroviral therapy attrition and its influencing factors among HIV-infected patients in Hainan
FENG Yuting ; XU Yujun ; ZHU Kaokao ; ZHANG Wenting
China Tropical Medicine 2024;24(3):304-
Objective To investigate the current status and attrition among HIV-infected persons receiving antiretroviral therapy (ART), and to analyze factors affecting attrition in Hainan. Methods In this study, HIV-infected patients who started ART treatment in Hainan Province from 2005 to 2022 were selected from the antiviral treatment submodule of China Disease Prevention and Control Information System.According to the inclusion and exclusion criteria,a total of 4 286 HIV-infected persons were receiving . A Cox proportional hazards regression model was used to analyze factors affecting attrition. Results Among the 4 286 study subjects, 3 718 were males (86.7%), with a sex ratio of 6.55∶1. Unmarried individuals accounted for 58.4%, and the average age was (39.68±13.17) years. Transmission through homosexual contact accounted for 49.8%, and 84.3% were in WHO clinical stage I. Treatment regimens containing Efavirenz (EFV) accounted for 71.7%. During a follow-up of 19 677.44 person-years, the overall attrition rate was 0.80 per 100 person-years, with the first-year post-ART initiation attrition rate being 21.10 per 100 person-years. The results of Cox regression analysis showed that the time of treatment initiation in 2016-2022 (AHR=2.40, 95%CI: 1.40-4.10), and the last HIV viral load (VL) 20-<1 000 copies/mL (AHR=3.69, 95%CI: 2.08-6.54), the last HIV-1 VL≥1 000 copies/mL (AHR=15.98, 95%CI: 9.46-27.01), and no last HIV-1 VL test (AHR=92.90, 95%CI: 57.68-149.62), the time interval from diagnosis to treatment for 1-12 months (AHR=1.62, 95%CI: 1.12-2.36), and an interval longer than 12 months (AHR=1.68, 95%CI: 1.07-2.62) were the main factors that increased the risk of attrition. Treatment regimens containing Lopinavir/ritonavir (Lpv/r) (AHR=0.34, 95%CI:0.18-0.66) and treatment regimens containing integrase strand transfer inhibitors (INSTIs) (AHR=0.24, 95%CI: 0.09-0.58) were the factors that reduced the risk of attrition after antiretroviral therapy. Conclusions The attrition of ART in HIV/AIDS patients in Hainan Province is related to a longer interval from diagnosis to treatment, treatment plan, and abnormal HIV viral load test results. Case-based measures should be taken to address factors influencing antiretroviral treatment attrition, while improving the timeliness of antiviral treatment and treatment management service quality to further improve the efficacy of antiviral treatment.


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