1.Clinical characteristics of children infected with SARS-CoV-2 Omicron variant combined with allergic disease.
Bing Jie WANG ; Chao WANG ; Na DONG ; Ying DING ; Lang YUAN ; Rong YIN ; Yong Shuang FANG ; Yan Hua NIU ; Yi HU ; Quan LU ; Xiao Yan DONG
Chinese Journal of Pediatrics 2023;61(1):61-65
Objective: To investigate the clinical characteristics of children with allergic diseases suffering from SARS-CoV-2 Omicron variant strains. Methods: This was a cross-sectional study. A total of 43 pediatric patients with allergic diseases infected by SARS-CoV-2 from April 25, 2022 to June 8, 2022 in Shanghai Jiao Tong University School of Medicine were selected as the allergic disease group, while 114 cases without underlying diseases and 16 cases with other underlying diseases were selected as control groups diagnosed at the same period. Clinical data including clinical features, laboratory tests, duration of hospitalization, and the time to negative turn of novel coronavirus nucleic acid were collected and analysed. Kruskal-Wallis H test, chi-square test or Fisher exact test were used for comparison among three groups. Results: Among the 43 patients with allergic diseases, 28 were males and 15 were females, with an age of 4.4 (2.1, 8.2) years on admission, including 32 mild cases and 11 common cases. The allergic disease group included 20 cases (46.5%) of atopic dermatitis and eczema, followed by 14 cases (32.6%) of rhinitis, 8 cases (18.6%) of food allergies, 7 cases (16.3%) of asthma, 4 cases (9.3%) of allergic conjunctivitis and 2 cases (4.7%) of drug allergy. Among the 114 cases without underlying diseases, 57 were males and 57 were females, with an age of 2.8 (1.2, 5.6) years on admission, including 93 mild cases and 21 common cases. Among the 16 cases with other underlying diseases, 9 were males and 7 were females, with an age of 3.0 (2.6, 10.8) years on admission, including 13 cases mild and 3 cases common cases. Children with allergic diseases had higher frequency of sore throat and vomiting than those without underlying diseases (10 cases (23.3%) vs.9 cases (7.9%), 14 cases (32.6%) vs. 11 cases (9.6%), χ²=6.93, 12.24, both P<0.05). The lymphocyte count of patients with allergic disease was lower than those without underlying disease (1.1 (0.7,1.7)×109 vs. 1.6 (1.1,2.7)×109/L, H=-28.00,P=0.005). There were no significant differences in age, gender, typing of SARS-CoV-2, the duration of hospitalization, cycle threshold values of SARS-CoV-2 and the time to negative turn of novel coronavirus nucleic acid among the three groups (all P>0.05). Conclusions: Children with allergic diseases may suffer from sore throat and vomiting more frequently when infected with SARS-CoV-2 Omicron variant. The combination of allergic diseases hardly influenced the disease course of SARS-CoV-2 in children.
Male
;
Female
;
Humans
;
Child
;
SARS-CoV-2
;
Cross-Sectional Studies
;
COVID-19
;
China/epidemiology*
;
Food Hypersensitivity
;
Pharyngitis
2.Isolation of Leclercia adecarboxylata Producing Carbapenemases in A Newborn Female.
Shuang MENG ; Bei Bei MIAO ; Jie LI ; Jian Wen YIN ; Ze Liang LIU ; Xue Qi JIANG ; Xin Yi GONG ; Juan LI
Biomedical and Environmental Sciences 2023;36(9):874-879
Leclercia adecarboxylata is a Gram-negative bacterium belonging to the Enterobacteriaceae family. To our knowledge, this is the first report of a carbapenem-resistant L. adecarboxylata strain isolated from a healthy newborn. The L. adecarboxylata strain isolated in this study carried four plasmids that may serve as reservoirs for antibiotic resistance genes. Plasmids 2 and 4 did not harbor any antimicrobial resistance genes. Plasmid 3 is a novel plasmid containing three resistance genes. The bla IMP gene harbored in the strain was most similar to bla IMP-79 at the nucleotide level, with a similarity of 99.4% (737/741). This case highlights the importance of considering L. adecarboxylata as a potential cause of infections in children.
Infant, Newborn
;
Child
;
Humans
;
Female
;
Enterobacteriaceae Infections/microbiology*
;
Enterobacteriaceae/genetics*
;
Anti-Bacterial Agents/therapeutic use*
;
Plasmids
3.Characteristics and related factors of viral nucleic acid negative conversion in children infected with Omicron variant strain of SARS-CoV-2.
Rong YIN ; Quan LU ; Jia Li JIAO ; Kai LIN ; Chao WANG ; Lang YUAN ; Ying DING ; Na DONG ; Bing Jie WANG ; Yan Hua NIU ; Yong Shuang FANG ; Wei LIU ; Yi Fan SUN ; Bing ZOU ; Xiao E ZHANG ; Pei XIAO ; Lei SUN ; Xin DU ; Ying Ying ZHU ; Xiao Yan DONG
Chinese Journal of Pediatrics 2022;60(12):1307-1311
Objective: To understand the characteristics and associated factors of viral nucleic acid conversion in children infected with Omicron variant strain of SARS-CoV-2 in Shanghai. Methods: The clinical symptoms, laboratory results and other data of 177 children infected with SARS-CoV-2 who were hospitalized in Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University (designated hospital for SARS-CoV-2 infection in Shanghai) from April 25 to June 8, 2022 were retrospectively analyzed. According to the chest imaging findings, the children were divided into mild and common type groups. According to their age, the unvaccinated children were divided into<3 years old group and 3-<18 years old group. According to the vaccination status, the children aged 3-<18 year were divided into non-vaccination group, 1-dose vaccination group and 2-dose vaccination group. Comparison between groups was performed by independent sample t-test and analysis of variance, and multivariate linear regression analysis was used for multivariate analysis. Results: Among the 177 children infected with Omicron variant of SARS-CoV-2, 96 were males and 81 were females, aged 3 (1, 6) years. The time of viral nucleic acid negative conversion was (10.3±3.1) days. The 177 children were 138 cases of mild type and 39 cases of common type. Among the children aged 3-<18 years old, 55 cases were not vaccinated, 5 cases received 1-dose and 36 cases received 2-dose vaccination. Among the 36 children who received 2 doses of vaccination, the time of viral nucleic acid negative conversion was shorter in those vaccinated within 6 months than those over 6 months ((7.1±1.9) vs. (10.8±3.0) d, t=-3.23, P=0.004). Univariate analysis showed that the time of nucleic acid negative conversion of SARS-CoV-2 was associated with age, underlying diseases, gastrointestinal symptoms, white blood cell count, proportion of neutrophils, proportion of lymphocytes, and the number of doses of SARS-CoV-2 vaccine (t=3.87, 2.55, 2.04, 4.24, 3.51, 2.92, F=16.27, all P<0.05). Multiple linear regression analysis showed that older age (β=-0.33, 95% CI -0.485--0.182, P<0.001) and more doses of vaccination (β=-0.79, 95% CI -1.463--0.120, P=0.021) were associated with shortened nucleic acid negative conversion time in children, while lower lymphocyte proportion (β=-0.02, 95% CI -0.044--0.002, P=0.031) and underlying diseases (β=1.52, 95% CI 0.363-2.672, P=0.010) were associated with prolonged nucleic acid negative conversion time in children. Conclusion: The children infected with Omicron variant of SARS-CoV-2 with reduced lymphocyte proportion and underlying diseases may have longer time of viral nucleic acid negative conversion,while children with older age and more doses of vaccination may have shorter time of viral nucleic acid negative conversion.
Child
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Female
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Male
;
Humans
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Child, Preschool
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Adolescent
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SARS-CoV-2
;
COVID-19 Vaccines
;
Nucleic Acids
;
COVID-19
;
Retrospective Studies
;
China/epidemiology*
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Translocation, Genetic
;
Hospitals, Pediatric
4.Tojapride Reverses Esophageal Epithelial Inflammatory Responses on Reflux Esophagitis Model Rats.
Xiao-Lan YIN ; Linda ZHONG ; Cheng-Yuan LIN ; Xiao-Shuang SHI ; Jiao ZHANG ; Zheng-Yi CHEN ; Hui CHE ; Xiang-Xue MA ; Ya-Xin TIAN ; Yuan-Zhi DUAN ; Lin LU ; Hai-Jie JI ; Ying-Pan ZHAO ; Xu-Dong TANG ; Feng-Yun WANG
Chinese journal of integrative medicine 2021;27(8):604-612
OBJECTIVE:
To investigate the mechanism of Tojapride, a Chinese herbal formula extract, on strengthening the barrier function of esophageal epithelium in rats with reflux esophagitis (RE).
METHODS:
Ten out of 85 SD rats were randomly selected as the sham group (n10), and 75 rats were developed a reflux esophagitis model (RE) by the esophageal and duodenal side-to-side anastomosis. Fifty successful modeling rats were divided into different medicated groups through a random number table including the model, low-, medium-, and high-dose of Tojapride as well as omeprazole groups (n10). Three doses of Tojapride [5.73, 11.46, 22.92 g/(kg•d)] and omeprazole [4.17 mg/(kg•d)] were administrated intragastrically twice daily for 3 weeks. And the rats in the sham and model groups were administered 10 mL/kg distilled water. Gastric fluid was collected and the supernatant was kept to measure for volume, pH value and acidity. Esophageal tissues were isolated to monitor the morphological changes through hematoxylin-eosin (HE) staining, and esophageal epithelial ultrastructure was observed by transmission electron microscopy. The expressions of nuclear factor kappa-light-chain-enhancer of activated B cells p65 (NF-KBp65), κB kinase beta (IKKß), occludin, and zonula occludens-1 (ZO-1) in the esophageal tissues were measured by immunohistochemistry and Western blot, respectively.
RESULTS:
The gastric pH value in the model group was significantly lower than the sham group (P<0.05). Compared with the model group, gastric pH value in the omeprazole and medium-dose of Tojapride groups were significantly higher (P<0.05). A large area of ulceration was found on the esophageal mucosa from the model rats, while varying degrees of congestion and partially visible erosion was observed in the remaining groups. Remarkable increase in cell gap width and decrease in desmosome count was seen in RE rats and the effect was reversed by Tojapride treatment. Compared with the sham group, the IKKß levels were significantly higher in the model group (P<0.05). However, the IKKß levels were down-regulated after treatment by all doses of Tojapride (P<0.01 or P<0.05). The occluding and ZO-1 levels decreased in the model group compared with the sham group (Ps0.01 or Ps0.05), while both indices were significantly up-regulated in the Tojapride-treated groups (P<0.01 or P<0.05).
CONCLUSIONS
Tojapride could improve the pathological conditions of esophageal epithelium in RE rats. The underlying mechanisms may involve in down-regulating the IKKß expression and elevating ZO-1 and occludin expression, thereby alleviating the inflammation of the esophagus and strengthening the barrier function of the esophageal epithelium.
5.Automatic Framework Acquisition and Visualization Analysis of Ancient Chinese Medicine Literature Relating to Tumor
Yan-lan KANG ; Rui-heng XIAO ; Shi ZHANG ; Yi JIANG ; Li-ping SHEN ; Ju-hua YIN ; Xiao-li XIN ; Peng ZHANG ; Ruo-yan QIN ; Ling-shuang LIU
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(10):152-160
Objective:To obtain ancient traditional Chinese medicine(TCM)literatures relating to tumor and visual analysis by an automatic framework tool, in order to systematically sort out the development of ancient Chinese medicine oncology. Method:Based on the database platform of ancient TCM books,names of tumor-related diseases in ancient TCM books were retrieved by Selenium WebDriver, an automation framework tool under Python 3.8. Lxml's etree library was used to parse the data. Statistics was made for "classification", "authors", "completion time" and "summary" of relevant ancient books automatically. After the data was checked and processed, Tableau 2019.2 software was used for data visualization analysis. And ancient Chinese medicine literatures relating to tumor were consulted at the database manually,with the dynasties as the clue,and the symptoms,etiology,pathogenesis and prognosis as the emphasis,this paper explores the development process of TCM oncology. Result:A total of 774 349 bytes of text data of 1 128 entries in 242 ancient books were included automatically. According to the findings, there were simple classification and time distribution of tumor diseases in ancient TCM books in the pre-Qin period, with a simple view on the pathogenesis of tumor diseases. From the Han dynasty to the Tang dynasty, the number of relevant literature records and the types and disease names had gradually increased,which further enriched the cognition of tumor nature,signs,classification methods,differential diagnosis;in Song and Ming dynasties,the proportion of Chinese prescription books and surgery books had increased gradually,with the largest number of abdominal organ tumor names among all dynasties;from Qing dynasty to the Republic of China,literatures relating to tumor name and classification were the most improved,and then the TCM tumor syndrome differentiation and treatment system had been formed. Conclusion:It was found that TCM oncology originated in the pre-Qin dynasty,and was improved in the Han and Tang dynasties, mature in the Song and Ming dynasties and completed in the Qing dynasty and the Republic of China. The data visualization method with integrated automation framework and parsing tools is helpful to analyze the subdivision characteristics of ancient TCM literatures,which is convenient,efficient and innovative,in the expectation to provide a classic reference for contemporary TCM studies.
6.Association between serum vitamin D level and immune imbalance in advanced schistosomiasis patients with liver fibrosis
Li-Yun ZHOU ; Li-Fang ZHANG ; Yi-Ming WU ; Shuang-Yin HAN
Chinese Journal of Schistosomiasis Control 2021;33(1):22-27
Objective To examine the relationship between serum vitamin D level and immune imbalance in advanced schistosomiasis patients with liver fibrosis. Methods A total of 120 advanced schistosomiasis patients with liver fibrosis that were admitted to the Department of Schistosomiasis of The First Hospital of Jiaxing City from May 2016 to September 2018 were recruited as the observation group, and 50 healthy volunteers randomly sampled from the hospital during the same period served as the control group. The serum IgG antibody, IgA antibody, C3 complement, C4 complement, CD4+ cell proportion, CD8+ cell proportion, 25-hydroxyvitamin D [25(OH)D] levels were compared between the two groups. Liver fibrosis was classified into grade I, II and III according to the classification criteria of liver fibrosis by ultrasonography, and the serum IgG antibody, IgA antibody, C3 complement, C4 complement, CD4+ proportion, CD8+ proportion, 25(OH)D levels were compared among patients with grade I, II and III liver fibrosis. In addition, all patients were classified into the sufficient group, the insufficient group and the deficient group according to the serum vitamin D level, and the serum IgG antibody, IgA antibody, C3 complement, C4 complement, CD4+ proportion, CD8+ proportion, 25(OH)D levels were compared among these three groups. Moreover, the associations of the serum vitamin D level with these immune indicators were examined. Results The 120 advanced schistosomiasis patients with liver fibrosis included 58 men and 62 women, and had a mean age of (72.00 ± 3.00) years. There were 32 cases with grade I liver fibrosis, 46 cases with grade II liver fibrosis, and 42 cases with grade III liver fibrosis. There were no significant differences between the observation group and the control group in terms of serum D-dimer, total cholesterol (TC), triglyceride (TG), C3 complement or C4 complement levels (t = 2.467, 0.322, 0.790, -2.432 and -2.630, all P values > 0.05); however, there were significant differences seen in alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood calcium, blood phosphorus, IgG antibody, IgA antibody, CD4+ proportion, CD8+ proportion, and 25(OH)D levels (t = 5.130, 6.382, -1.341, 2.361, 8.708, 11.783, -2.995, -6.543 and -3.022, all P values < 0.05). In addition, there were significant differences in AST, ALT, blood phosphorus, IgA antibody, C3 complement, CD8+ cell proportion and 25(OH)D levels among patients with grades I, II and III liver fibrosis (F = 19.704, 16.254, 62.669, 49.347, 5.430, 5.434 and 5.783, all P values < 0.05). There were significant differences in ALT, blood phosphorus, IgA antibody, CD8+ cell proportion and 25(OH)D levels between patients with grades I and III liver fibrosis (all P values < 0.05), and significant differences were seen between patients with grades II and III liver fibrosis in terms of blood phosphorus, IgA antibody and CD8+ cell proportion (all P values < 0.05), while there was a significant difference in the CD8+ cell proportion between patients with grades I and II liver fibrosis (P < 0.05). Moreover, there were significant differences among the sufficient, insufficient and deficient groups in terms of IgG antibody, IgA antibody, C3 complement, CD4+ cell proportion and CD8+ cell proportion (F = 13.303, 59.623, 8.698, 9.969 and 12.805, all P values < 0.05), and there was a significant difference in the CD8+ cell proportion between the insufficient and deficient groups (P < 0.05). Pearson correlation analysis revealed that serum 25(OH)D level were negatively associated with IgG and IgA antibody levels (r = -0.754 and -0.773, both P values < 0.05), and positively associated with C3 complement, CD4+ cell proportion and CD8+ cell proportion in advanced schistosomiasis patients with liver fibrosis (r = 0.827, 0.850 and 0.830, all P values < 0.05). Conclusion Immune imbalance occurs in advanced schistosomiasis patients with liver fibrosis, and serum vitamin D level may correlate with immune imbalance in advanced schistosomiasis patients with liver fibrosis.
7.An update on the role of long non-coding RNAs in psoriasis.
Jian-Kun SONG ; Shuang-Yi YIN ; Wei LI ; Xiao-Dong LI ; Yue LUO ; Ying LUO ; Meng XING ; Bin LI ; Le KUAI
Chinese Medical Journal 2020;134(4):379-389
Increasing evidence suggests that long non-coding RNAs (lncRNAs) are of vital importance for various biological processes, and dysregulation of lncRNAs is frequently associated with various diseases such as psoriasis. LncRNAs modulate gene expression at the transcriptional, post-transcriptional, and translational levels; however, the specific regulatory mechanisms of lncRNAs in psoriasis remain largely unexplored. This review provides an overview of recent studies investigating mechanisms and functions of lncRNAs in psoriasis, especially focusing on the role of lncRNAs in keratinocytes, T cells, and dendritic cells.
Humans
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Psoriasis/genetics*
;
RNA, Long Noncoding/genetics*
8.An investigation of severe neonatal hyperbilirubinemia in 13 hospitals of Jiangsu Province, China.
Qian-Qian LI ; Xiao-Yue DONG ; Yu QIAO ; Yu-Jie YIN ; Yan GAO ; Jin-Jun ZHOU ; Li YANG ; Rong-Ping ZHU ; Fu-Dong WANG ; Jun WAN ; Yan XU ; Zhao-Jun PAN ; Wei-Yuan WANG ; Jun-Mei YAN ; Shu-Ping HAN ; Hong-Yan LU ; Yu-Hua HU ; Shuang-Shuang LI ; Jin-Xiu WANG ; Ming-Fu WU ; Jun WANG ; Xiao-Yi DENG ; Zhang-Bin YU
Chinese Journal of Contemporary Pediatrics 2020;22(7):690-695
OBJECTIVE:
To investigate the incidence of severe neonatal hyperbilirubinemia and the management on the treatment and follow-up of this disease in Jiangsu Province, China.
METHODS:
The neonates with severe hyperbilirubinemia who were admitted to 13 hospitals in Jiangsu Province from January to December, 2018, were enrolled as subjects. A retrospective analysis was performed on their mediacal data and follow-up data.
RESULTS:
In 2018, 740 neonates with severe hyperbilirubinemia were reported from the 13 hospitals in Jiangsu Province, accounting for 2.70% (740/27 386) of the total number of neonates admitted to the department of neonatology. Among these neonates, 620 (83.8%) had severe hyperbilirubinemia, 106 (14.3%) had extremely severe hyperbilirubinemia, and 14 (1.9%) had hazardous hyperbilirubinemia. Four neonates (0.5%) were diagnosed with acute bilirubin encephalopathy. A total of 484 neonates (65.4%) were readmitted due to severe hyperbilirubinemia after discharge from the delivery institution, with a median age of 7 days, among whom 214 (44.2%) were followed up for jaundice at the outpatient service before readmission, with a median age of 6 days at the first time of outpatient examination. During hospitalization, 211 neonates (28.5%) underwent cranial MRI examinations, among whom 85 (40.3%) had high T1WI signal in the bilateral basal ganglia and the globus pallidus; 238 neonates (32.2%) underwent brainstem auditory evoked potential examinations, among whom 14 (5.9%) passed only at one side and 7 (2.9%) failed at both sides. The 17 neonates with acute bilirubin encephalopathy or hazardous hyperbilirubinemia were followed up. Except one neonate was lost to follow-up, and there were no abnormal neurological symptoms in the other neonates.
CONCLUSIONS
Neonates with severe hyperbilirubinemia account for a relatively high proportion of the total number of neonates in the department of neonatology. Jaundice monitoring and management after discharge from delivery institutions need to be strengthened. For neonates with severe hyperbilirubinemia, relevant examinations should be carried out more comprehensively during hospitalization and these neonates should be followed up comprehensively and systematically after discharge.
Bilirubin
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China
;
Evoked Potentials, Auditory, Brain Stem
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Humans
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Hyperbilirubinemia, Neonatal
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Infant, Newborn
;
Retrospective Studies
9.Network Meta-analysis of Yiqi Huoxue Chinese patent medicine for coronary heart disease with angina pectoris.
Zhao-Chen JI ; Hai-Yin HU ; Feng-Wen YANG ; Li-Shuang ZHANG ; Xin-Yao JIN ; Hu-Cheng WANG ; Wen-Tai PANG ; Nan LI ; Ke-Yi WANG ; Jun-Hua ZHANG
China Journal of Chinese Materia Medica 2019;44(9):1927-1937
To assess the clinical efficacy of Yiqi Huoxue Chinese patent medicine for coronary heart disease with angina pectoris by using network Meta-analysis method. The relative randomized controlled trials( RCTs) of Yiqi Huoxue Chinese patent medicine for coronary heart disease with angina pectoris were retrieved from China National Knowledge Infrastructure( CNKI),Wan Fang,VIP and Chinese Biomedical Literature Database( CBM) in July 2018. Two researchers independently completed the literature screening,data extraction and quality evaluation according to the pre-determined inclusion and exclusion criteria,and the results were cross-checked.The data were analyzed by Win Bugs,and STATA software was used for plotting. Finally,114 RCTs were included,involving 7 Yiqi Huoxue Chinese patent medicines and 11 775 patients. Network Meta-analysis showed that the total effective rate for improvement in AP symptoms had 7 direct comparisons and 21 indirect comparisons,8 of which were statistically significant. The ECG improvement had 7 direct comparisons and 21 indirect comparisons,7 of which were statistically significant. In terms of the total effective rate of improvement in AP symptoms,the order of efficacy was as follows: Shensong Yangxin Capsules > Shexiang Baoxin Pills > Qishen Yiqi Dropping Pills > Tongxinluo Capsules > Wenxin Granules > Qishen Capsules > Naoxintong Capsules. In terms of ECG improvement,the order of efficacy was as follows: Shexiang Baoxin Pills > Tongxinluo Capsules > Naoxintong Capsules > Qishen Yiqi Dropping Pills> Wenxin Granules > Shensong Yangxin Capsules > Qishen Capsules. The results showed that Shensong Yangxin Capsules and Shexiang Baoxin Pills had certain advantages in the treatment of coronary heart disease with angina pectoris. Due to the small sample size,more studies were required to further verify the evidences.
Angina Pectoris
;
drug therapy
;
China
;
Coronary Disease
;
drug therapy
;
Drugs, Chinese Herbal
;
therapeutic use
;
Humans
;
Network Meta-Analysis
;
Nonprescription Drugs
;
Randomized Controlled Trials as Topic
10.Effects of XPO1 Inhibitor KPT-8602 on Proliferation and Apoptosis in U937 cells
Xiao-hui XIAO ; Yi-qing LI ; Ke-zhi HUANG ; Shuang-feng XIE ; Jie XIAO ; Li-ping MA ; Song-mei YIN ; Da-nian NIE
Journal of Sun Yat-sen University(Medical Sciences) 2019;40(1):37-45
【Objective】To explore the effects and the possible mechanism of KPT- 8602,a novel selective inhibitor of nuclear export protein (XPO1),on proliferation,cell cycle and apoptosis in human histiocytic lymphoma cell line U937 cells.【Methods】U937 cells were treated with different concentrations of KPT- 8602. Cell viability was assessed by CCK-8 assay. The cell cycle distribution and the apoptosis rate were analyzed by flow cytometry. The proteins expression of XPO1,p-AKT,AKT,Cleaved Caspase-3,p21 were determined by Western blot. Fluorescence microscope was used in observing the intracellular location of XPO1. 【Results】 KPT- 8602 inhibited the growth of U937 cells in a dose- dependent(P<0.001)and time- dependent manner(P<0.001),but normal PBMC were unaffected. 48 h after treatment with KPT-8602,a higher proportion of cells in G1 phase was observed(P<0.001)and the apoptosis rate increased(P=0.016)with drug concentration in U937 cells. XPO1 protein expression of U937 cells was significantly higher than normal PBMC(P=0.003). 48 h after treatment with KPT- 8602,the protein expression of XPO1 decreased(P=0.011),p-AKT decreased(P=0.011),and Cleaved Caspase- 3 increased(P=0.009). In addition,the protein expression of p21,the cargo protein of XPO1,increased in both the nuclei and the cytoplasm(P<0.05)after treatment with KPT- 8602. XPO1 decreased in both the nuclei and the cytoplasm under the fluorescence microscope after treatment with KPT- 8602.【Conclusion】KPT- 8602 can inhibit the proliferation of U937 cells,block the cell cycle at G1 phase,and induce cell apoptosis,which may partially be attributed to the down-regulation of XPO1 and inhibition of PI3K/AKT signaling.

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