1.A multicenter study of neonatal stroke in Shenzhen,China
Li-Xiu SHI ; Jin-Xing FENG ; Yan-Fang WEI ; Xin-Ru LU ; Yu-Xi ZHANG ; Lin-Ying YANG ; Sheng-Nan HE ; Pei-Juan CHEN ; Jing HAN ; Cheng CHEN ; Hui-Ying TU ; Zhang-Bin YU ; Jin-Jie HUANG ; Shu-Juan ZENG ; Wan-Ling CHEN ; Ying LIU ; Yan-Ping GUO ; Jiao-Yu MAO ; Xiao-Dong LI ; Qian-Shen ZHANG ; Zhi-Li XIE ; Mei-Ying HUANG ; Kun-Shan YAN ; Er-Ya YING ; Jun CHEN ; Yan-Rong WANG ; Ya-Ping LIU ; Bo SONG ; Hua-Yan LIU ; Xiao-Dong XIAO ; Hong TANG ; Yu-Na WANG ; Yin-Sha CAI ; Qi LONG ; Han-Qiang XU ; Hui-Zhan WANG ; Qian SUN ; Fang HAN ; Rui-Biao ZHANG ; Chuan-Zhong YANG ; Lei DOU ; Hui-Ju SHI ; Rui WANG ; Ping JIANG ; Shenzhen Neonatal Data Network
Chinese Journal of Contemporary Pediatrics 2024;26(5):450-455
Objective To investigate the incidence rate,clinical characteristics,and prognosis of neonatal stroke in Shenzhen,China.Methods Led by Shenzhen Children's Hospital,the Shenzhen Neonatal Data Collaboration Network organized 21 institutions to collect 36 cases of neonatal stroke from January 2020 to December 2022.The incidence,clinical characteristics,treatment,and prognosis of neonatal stroke in Shenzhen were analyzed.Results The incidence rate of neonatal stroke in 21 hospitals from 2020 to 2022 was 1/15 137,1/6 060,and 1/7 704,respectively.Ischemic stroke accounted for 75%(27/36);boys accounted for 64%(23/36).Among the 36 neonates,31(86%)had disease onset within 3 days after birth,and 19(53%)had convulsion as the initial presentation.Cerebral MRI showed that 22 neonates(61%)had left cerebral infarction and 13(36%)had basal ganglia infarction.Magnetic resonance angiography was performed for 12 neonates,among whom 9(75%)had involvement of the middle cerebral artery.Electroencephalography was performed for 29 neonates,with sharp waves in 21 neonates(72%)and seizures in 10 neonates(34%).Symptomatic/supportive treatment varied across different hospitals.Neonatal Behavioral Neurological Assessment was performed for 12 neonates(33%,12/36),with a mean score of(32±4)points.The prognosis of 27 neonates was followed up to around 12 months of age,with 44%(12/27)of the neonates having a good prognosis.Conclusions Ischemic stroke is the main type of neonatal stroke,often with convulsions as the initial presentation,involvement of the middle cerebral artery,sharp waves on electroencephalography,and a relatively low neurodevelopment score.Symptomatic/supportive treatment is the main treatment method,and some neonates tend to have a poor prognosis.
2.Analysis of risk factors of mortality in infants and toddlers with moderate to severe pediatric acute respiratory distress syndrome.
Bo Liang FANG ; Feng XU ; Guo Ping LU ; Xiao Xu REN ; Yu Cai ZHANG ; You Peng JIN ; Ying WANG ; Chun Feng LIU ; Yi Bing CHENG ; Qiao Zhi YANG ; Shu Fang XIAO ; Yi Yu YANG ; Xi Min HUO ; Zhi Xian LEI ; Hong Xing DANG ; Shuang LIU ; Zhi Yuan WU ; Ke Chun LI ; Su Yun QIAN ; Jian Sheng ZENG
Chinese Journal of Pediatrics 2023;61(3):216-221
Objective: To identify the risk factors in mortality of pediatric acute respiratory distress syndrome (PARDS) in pediatric intensive care unit (PICU). Methods: Second analysis of the data collected in the "efficacy of pulmonary surfactant (PS) in the treatment of children with moderate to severe PARDS" program. Retrospective case summary of the risk factors of mortality of children with moderate to severe PARDS who admitted in 14 participating tertiary PICU between December 2016 to December 2021. Differences in general condition, underlying diseases, oxygenation index, and mechanical ventilation were compared after the group was divided by survival at PICU discharge. When comparing between groups, the Mann-Whitney U test was used for measurement data, and the chi-square test was used for counting data. Receiver Operating Characteristic (ROC) curves were used to assess the accuracy of oxygen index (OI) in predicting mortality. Multivariate Logistic regression analysis was used to identify the risk factors for mortality. Results: Among 101 children with moderate to severe PARDS, 63 (62.4%) were males, 38 (37.6%) were females, aged (12±8) months. There were 23 cases in the non-survival group and 78 cases in the survival group. The combined rates of underlying diseases (52.2% (12/23) vs. 29.5% (23/78), χ2=4.04, P=0.045) and immune deficiency (30.4% (7/23) vs. 11.5% (9/78), χ2=4.76, P=0.029) in non-survival patients were significantly higher than those in survival patients, while the use of pulmonary surfactant (PS) was significantly lower (8.7% (2/23) vs. 41.0% (32/78), χ2=8.31, P=0.004). No significant differences existed in age, sex, pediatric critical illness score, etiology of PARDS, mechanical ventilation mode and fluid balance within 72 h (all P>0.05). OI on the first day (11.9(8.3, 17.1) vs.15.5(11.7, 23.0)), the second day (10.1(7.6, 16.6) vs.14.8(9.3, 26.2)) and the third day (9.2(6.6, 16.6) vs. 16.7(11.2, 31.4)) after PARDS identified were all higher in non-survival group compared to survival group (Z=-2.70, -2.52, -3.79 respectively, all P<0.05), and the improvement of OI in non-survival group was worse (0.03(-0.32, 0.31) vs. 0.32(-0.02, 0.56), Z=-2.49, P=0.013). ROC curve analysis showed that the OI on the thind day was more appropriate in predicting in-hospital mortality (area under the curve= 0.76, standard error 0.05,95%CI 0.65-0.87,P<0.001). When OI was set at 11.1, the sensitivity was 78.3% (95%CI 58.1%-90.3%), and the specificity was 60.3% (95%CI 49.2%-70.4%). Multivariate Logistic regression analysis showed that after adjusting for age, sex, pediatric critical illness score and fluid load within 72 h, no use of PS (OR=11.26, 95%CI 2.19-57.95, P=0.004), OI value on the third day (OR=7.93, 95%CI 1.51-41.69, P=0.014), and companied with immunodeficiency (OR=4.72, 95%CI 1.17-19.02, P=0.029) were independent risk factors for mortality in children with PARDS. Conclusions: The mortality of patients with moderate to severe PARDS is high, and immunodeficiency, no use of PS and OI on the third day after PARDS identified are the independent risk factors related to mortality. The OI on the third day after PARDS identified could be used to predict mortality.
Female
;
Male
;
Humans
;
Child, Preschool
;
Infant
;
Child
;
Critical Illness
;
Pulmonary Surfactants/therapeutic use*
;
Retrospective Studies
;
Risk Factors
;
Respiratory Distress Syndrome/therapy*
3.Experimental study of cardioprotective effects of Cinnamomi Ramulus and Cinnamomi Cortex formula granules on myocardial ischemia/reperfusion injury in rats based on efficacy of "warming and coordinating heart Yang".
Fei LUAN ; Zi-Qin LEI ; Li-Xia PENG ; Zhi-Li RAO ; Ruo-Cong YANG ; Nan ZENG
China Journal of Chinese Materia Medica 2023;48(3):725-735
This study aimed to parallelly investigate the cardioprotective activity of Cinnamomi Ramulus formula granules(CRFG) and Cinnamomi Cortex formula granules(CCFG) against acute myocardial ischemia/reperfusion injury(MI/RI) and the underlying mechanism based on the efficacy of "warming and coordinating the heart Yang". Ninety male SD rats were randomly divided into a sham group, a model group, CRFG low and high-dose(0.5 and 1.0 g·kg~(-1)) groups, and CCFG low and high-dose(0.5 and 1.0 g·kg~(-1)) groups, with 15 rats in each group. The sham group and the model group were given equal volumes of normal saline by gavage. Before modeling, the drug was given by gavage once a day for 7 consecutive days. One hour after the last administration, the MI/RI rat model was established by ligating the left anterior descending artery(LAD) for 30 min ischemia followed by 2 h reperfusion except the sham group. The sham group underwent the same procedures without LAD ligation. Heart function, cardiac infarct size, cardiac patho-logy, cardiomyocyte apoptosis, cardiac injury enzymes, and inflammatory cytokines were determined to assess the protective effects of CRFG and CCFG against MI/RI. The gene expression levels of nucleotide-binding oligomerization domain-like receptor family pyrin domain protein 3(NLRP3) inflammasome, apoptosis-associated speck-like protein containing a CARD(ASC), cysteinyl aspartate specific proteinase-1(caspase-1), Gasdermin-D(GSDMD), interleukin-1β(IL-1β), and interleukin-18(IL-18) were determined by real-time quantitative polymerase chain reaction(RT-PCR). The protein expression levels of NLRP3, caspase-1, GSDMD, and N-GSDMD were determined by Western blot. The results showed that both CRFG and CCFG pretreatments significantly improved cardiac function, decreased the cardiac infarct size, inhibited cardiomyocyte apoptosis, and reduced the content of lactic dehydrogenase(LDH), creatine kinase MB isoenzyme(CK-MB), aspartate transaminase(AST), and cardiac troponin Ⅰ(cTnⅠ). In addition, CRFG and CCFG pretreatments significantly decreased the levels of IL-1β, IL-6, and tumor necrosis factor-α(TNF-α) in serum. RT-PCR results showed that CRFG and CCFG pretreatment down-regulated the mRNA expression levels of NLRP3, caspase-1, ASC, and downstream pyroptosis-related effector substances including GSDMD, IL-18, and IL-1β in cardiac tissues. Western blot revealed that CRFG and CCFG pretreatments significantly decreased the protein expression levels of NLRP3, caspase-1, GSDMD, and N-GSDMD in cardiac tissues. In conclusion, CRFG and CCFG pretreatments have obvious cardioprotective effects on MI/RI in rats, and the under-lying mechanism may be related to the inhibition of NLRP3/caspase-1/GSDMD signaling pathway to reduce the cardiac inflammatory response.
Male
;
Animals
;
Rats
;
Rats, Sprague-Dawley
;
Interleukin-18
;
Myocardial Reperfusion Injury
;
NLR Family, Pyrin Domain-Containing 3 Protein
;
Tumor Necrosis Factor-alpha
;
Myocardial Infarction
;
Caspase 1
4.CiteSpace knowledge map of research hotspots and frontiers of Polygalae Radix.
Hong-Jun ZHOU ; Lu ZHANG ; Jin-Hao ZENG ; Zhi-Lei WANG ; Li LIU ; Ju HUANG ; Wen-Hao LIAO ; Feng-Chen JIN ; Yu-Jie WEI ; Jian-Yuan TANG
China Journal of Chinese Materia Medica 2023;48(6):1664-1672
In this study, the Web of Science and China National Knowledge Infrastructure(CNKI) were searched comprehensively for the literature about the research on Polygalae Radix. After manual screening, 1 207 Chinese articles and 263 English articles were included in this study. Excel was used to draw the line chart of the annual number of relevant publications. CiteSpace 6.1.R3 was used for the visual analysis of author cooperation, publishing institutions, keyword co-occurrence, keyword clustering, and bursts in the research on Polygalae Radix. The results showed that the number of articles published in Chinese and English increased linearly, which indicated the rising research popularity of Polygalae Radix. WANG J and LIU X were the authors publishing the most articles in Chinese and English, respectively. Shanxi University of Chinese Medicine and Chinese Academy of Medical Sciences were the research institutions with the largest number of Chinese and English publications in this field, respectively. The institutions publishing the relevant articles in English formed a system with the Chinese Academy of Medical Sciences as the core. According to the keywords, the research hotspots of Polygalae Radix included variety selection and breeding, quality standard, extraction and identification of active chemical components, prescription compatibility, processing, clinical medication rules, and pharmacological mechanism. The research frontiers were the molecular mechanisms of Polygalae Radix and its active components in exerting the protective effect on brain nerve, regulating receptor pathways, alleviating anxiety and Alzheimer's disease, as well as data mining and clinical medication summary. This study has reference significance for the topic selection and frontier identification of the future research on Polygalae Radix.
Plant Breeding
;
China
;
Plant Roots/chemistry*
;
Brain
;
Publications
5.Repair of KuwadaⅡand Ⅲ Achilles tendon defects through modified medial J-shaped approach with autologous fascia lata transplantation.
Yi-Min QI ; Weng-Bo YANG ; Chun-Zhi JIANG ; Yi-Wen ZENG ; Lei WU
China Journal of Orthopaedics and Traumatology 2022;35(1):11-14
OBJECTIVE:
To investigate the clinical effect of modified medial J-shaped incision of Achilles tendon combined with fascia lata transplantation in the treatment of Kuwada typeⅡand Ⅲ Achilles tendon defects.
METHODS:
From January 2016 to August 2018, the clinical data of 15 patients with KuwadaⅡand Ⅲ Achilles tendon defects treated with modified J-shaped approach with autologous fascia lata transplantation were retrospectively analyzed, including 14 males and 1 female, with an average age of 31.7 years old ranging from 24 to 43. There were 9 cases of KuwadaⅡdefect and 6 cases of KuwadaⅢ defect. Postoperative observations were made for incision complications, and the Arner-Lindholm scoring standard was used to evaluate the function of the affected foot at the last follow-up.
RESULTS:
All 15 cases were followed up from 3 to 16 months with an average of 9.2 months. No skin necrosis or infection occurred after operation, and no Achilles tendon rupture occurred again. According to the Arner-Lindholm scoring standard, 13 cases were excellent, 2 cases were good.
CONCLUSION
Modified medial J-shaped incision is a satisfactory approach for repairing Achilles tendon defects. It is helpful to prevent postoperative incision complications, which double-strengthen the Achilles tendon strength, so that patients can perform early rehabilitation and functional exercises with satisfactory clinical results.
Achilles Tendon/surgery*
;
Adult
;
Fascia Lata
;
Female
;
Humans
;
Male
;
Retrospective Studies
;
Rupture
;
Treatment Outcome
6.Ethyl Acetate Fraction of Dicliptera chinensis (L.) Juss. Ameliorates Liver Fibrosis by Inducing Autophagy via PI3K/AKT/mTOR/p70S6K Signaling Pathway.
Yuan LIU ; Yan-Meng BI ; Ting PAN ; Ting ZENG ; Chan MO ; Bing SUN ; Lei GAO ; Zhi-Ping LYU
Chinese journal of integrative medicine 2022;28(1):60-68
OBJECTIVE:
To investigate the molecular mechanism underlying the anti-hepatic fibrosis activity of ethyl acetate fraction Dicliptera chinensis (L.) Juss. (EDC) in human hepatic stellate cells (HSCs) in vitro and in a carbon tetrachloride (CCl4)-induced hepatic fibrosis mouse model in vivo.
METHODS:
For in vitro study, HSCs were pre-treated with platelet-derived growth factor (10 ng/mL) for 2 h to ensure activation and treated with EDC for 24 h and 48 h, respectively. The effect of EDC on HSCs was assessed using cell counting kit-8 assay, EdU staining, transmission electron microscopy, immunofluorescence staining, and Western blot, respectively. For in vivo experiments, mice were intraperitoneally injected with CCl4 (2 ° L/g, adjusted to a 25% concentration in olive oil), 3 times per week for 6 weeks, to develop a hepatic fibrosis model. Forty 8-week-old male C57BL/6 mice were divided into 4 groups using a random number table (n=10), including control, model, positive control and EDC treatment groups. Mice in the EDC and colchicine groups were intragastrically administered EDC (0.5 g/kg) or colchicine (0.2 mg/kg) once per day for 6 weeks. Mice in the control and model groups received an equal volume of saline. Biochemical assays and histological examinations were used to assess liver damage. Protein expression levels of α -smooth muscle actin (α -SMA) and microtubule-associated protein light chain 3B (LC3B) were measured by Western blot.
RESULTS:
EDC reduced pathological damage associated with liver fibrosis, downregulated the expression of α -SMA and upregulated the expression of LC3B (P<0.05), both in HSCs and the CCl4-induced liver fibrosis mouse model. The intervention of bafilomycin A1 and rapamycin in HSCs strongly supported the notion that inhibition of autophagy enhanced α -SMA protein expression levels (P<0.01). The results also found that the levels of phosphoinositide (PI3K), p-PI3K, AKT, p-AKT, mammalian target of rapamycin (mTOR), p-mTOR, and p-p70S6K all decreased after EDC treatment (P<0.05).
CONCLUSIONS
EDC has anti-hepatic fibrosis activity by inducing autophagy and might be a potential drug to be further developed for human liver fibrosis therapy.
Acetates
;
Animals
;
Autophagy
;
Carbon Tetrachloride
;
Hepatic Stellate Cells
;
Liver/pathology*
;
Liver Cirrhosis/pathology*
;
Male
;
Mice
;
Mice, Inbred C57BL
;
Phosphatidylinositol 3-Kinases
;
Proto-Oncogene Proteins c-akt/metabolism*
;
Ribosomal Protein S6 Kinases, 70-kDa
;
Signal Transduction
;
TOR Serine-Threonine Kinases/metabolism*
7.Prevalence and risk factors of Giardia lamblia infections among colorectal cancer patients in Henan Province
Hui-hui CHEN ; Yan DENG ; Zhi LI ; Zhen-lei WANG ; Zeng-ci RUN ; Ting ZHANG ; Yu-chun CAI ; Hong-wei ZHANG ; Zhu-hua HU ; Jun-hu CHEN ; Li-guang TIAN ; Jian LI
Chinese Journal of Schistosomiasis Control 2022;34(4):370-377
Objective To investigate the epidemiological characteristics and identify the risk factors of Giardia lamblia infections among patients with colorectal cancer in Henan Province. Methods A cross-sectional study was performed for questionnaire surveys among colorectal cancer patients in Henan Cancer Hospital during the period from March to July, 2021. Patients’ stool samples were collected, and the triosephosphate isomerase (tpi) gene of G. lamblia was amplified in stool samples using nested PCR assay to characterize the parasite genotype. Univariate analysis and multivariate logistic regression analyses were employed to identify the risk factors of G. lamblia infections among colorectal cancer patients. Results A total of 307 colorectal cancer patients were investigated, including 176 males (57.3%) and 131 females (42.7%). PCR assay detected 8.1% [95% confidential interval (CI): (0.056, 0.117)] prevalence of G. lamblia infections among the study subjects, and there was no significant difference in the prevalence between men [9.1%, 95% CI: (0.057, 0.143)] and women [6.9%, 95% CI: (0.037, 0.125)] (χ2 = 0.495, P = 0.482). In addition, there was no age-specific prevalence of G. lamblia infections among the participants (χ2 = 1.534, P = 0.675). Multivariate logistic regression analysis identified use of septic tanks [odds ratio (OR) = 3.336, 95% CI: (1.201, 9.267)], daily use of well water [OR = 3.042, 95% CI: (1.093, 8.465)] and raising livestock [OR = 3.740, 95% CI: (1.154, 12.121)] as risk factors of G. lamblia infections among colorectal cancer patients, and the prevalence of abdominal pain was significantly greater in colorectal cancer patients with G. lamblia infections than in those without infections (P = 0.017). Among the 25 patients with G. lamblia infections, assemblage A was characterized in 24 (96.0%) cases and assemblage B in one case (4.0%). Conclusions The prevalence of G. lamblia is high among colorectal cancer patients in Henan Province, and assemblage A is the dominant genotype of G. lamblia. Use of septic tanks, daily use of well water and raising livestock are risk factors of G. lamblia infections among patients with colorectal cancer.
8.Cold stress reduces lifespan and mobility of C. elegans by mediating lipid metabolism disorder and abnormal stress.
Hao SHI ; Chao ZHANG ; Jia Min ZHAO ; Yi Wen LI ; Yun Jia LI ; Jun Jie LI ; Zhi Yun ZENG ; Lei GAO
Journal of Southern Medical University 2022;42(8):1159-1165
OBJECTIVE:
To investigate the changes of lipid metabolism and stress response of adult C.elegans exposed to non-freezing low temperature and explore the possible mechanism.
METHODS:
The survival rate and activity of adult C.elegans cultured at 20℃ or 4℃ were observed.Lipid metabolism of the cultured adult C.elegans was evaluated using oil red O staining and by detecting the expressions of the genes related with lipid metabolism.The effects of low temperature exposure on stress level of adult C.elegans were evaluated using mitochondrial fluorescence staining and by detecting the expression levels of stress-related genes and antioxidant genes at both the mRNA and protein levels.
RESULTS:
The lifespan and activity of adult C.elegans exposed to low temperature were significantly reduced with decreased lipid accumulation (P < 0.05) and decreased expressions of genes related with fatty acid synthesis and metabolism (fat-5, fat-6, fat-7, fasn-1, nhr-49, acs-2 and aco-1;P < 0.01).Cold stress significantly increased the expressions of heat shock proteins hsp-70 and hsp16.2(P < 0.05) but lowered the number of mitochondria (P < 0.0001) and the expressions of atfs-1, sod-2, sod-3 and gpx-1(P < 0.05).Knockout of fat-5, nhr-49 or both fat-5 and fat-6 obviously enhanced the sensitivity of C.elegans to cold stress as shown by further reduced activity (P < 0.05) and reduced survival rate at 24 h (P < 0.0001) under cold stress.
CONCLUSION
Exposure to a low temperature at 4℃ results in lowered lipid metabolism of adult C.elegans accompanied by a decreased mitochondrial number and quality control ability, which triggers high expressions of stress-related genes and causes reduction of antioxidant capacity, thus callsing lowered activity and reduced lifespan of C.elegans.
Animals
;
Antioxidants/metabolism*
;
Caenorhabditis elegans
;
Caenorhabditis elegans Proteins/genetics*
;
Cold-Shock Response
;
Lipid Metabolism
;
Lipid Metabolism Disorders
;
Longevity/genetics*
9.Expert consensus on diagnosis, prevention and treatment of perioperative lower extremity vein thrombosis in orthopedic trauma patients (2022 edition)
Wu ZHOU ; Faqi CAO ; Ruiyin ZENG ; Baoguo JIANG ; Peifu TANG ; Xinbao WU ; Bin YU ; Zhiyong HOU ; Jian LI ; Jiacan SU ; Guodong LIU ; Baoqing YU ; Zhi YUAN ; Jiangdong NI ; Yanxi CHEN ; Dehao FU ; Peijian TONG ; Dongliang WANG ; Dianying ZHANG ; Peng ZHANG ; Yunfei ZHANG ; Feng NIU ; Lei YANG ; Qiang YANG ; Zhongmin SHI ; Qiang ZHOU ; Junwen WANG ; Yong WANG ; Chengjian HE ; Biao CHE ; Meng ZHAO ; Ping XIA ; Liming XIONG ; Liehu CAO ; Xiao CHEN ; Hui LI ; Yun SUN ; Liangcong HU ; Yan HU ; Mengfei LIU ; Bobin MI ; Yuan XIONG ; Hang XUE ; Ze LIN ; Yingze ZHANG ; Yu HU ; Guohui LIU
Chinese Journal of Trauma 2022;38(1):23-31
Lower extremity deep vein thrombosis (DVT) is one of the main complications in patients with traumatic fractures, and for severe patients, the DVT can even affect arterial blood supply, resulting in insufficient limb blood supply. If the thrombus breaks off, pulmonary embolism may occur, with a high mortality. The treatment and rehabilitation strategies of thrombosis in patients with lower extremity fractures have its particularity. DVT in traumatic fractures patients has attracted extensive attention and been largely studied, and the measures for prevention and treatment of DVT are constantly developing. In recent years, a series of thrombosis prevention and treatment guidelines have been updated at home and abroad, but there are still many doubts about the prevention and treatment of DVT in patients with different traumatic fractures. Accordingly, on the basis of summarizing the latest evidence-based medical evidence at home and abroad and the clinical experience of the majority of experts, the authors summarize the clinical treatment and prevention protocols for DVT in patients with traumatic fractures, and make this consensus on the examination and assessment, treatment, prevention and preventive measures for DVT in patients with different fractures so as to provide a practicable approach suitable for China ′s national conditions and improve the prognosis and the life quality of patients.
10. Silencing AEBP2 Inhibits the Proliferation and Migration of Hepatocellular Carcinoma Cells via the PI3K/Akt Signaling Pathway
Cai-Yun LUO ; Zhi-Rui ZENG ; Shan LEI ; Qiang ZHANG ; Da-Quan SUN ; Ji-Gang PAN ; Guo-Qiang XU
Chinese Journal of Biochemistry and Molecular Biology 2022;38(6):789-798
Adipocyte enhancer binding protein 2, as a component protein of Polycomb repressive complex (PRC2), is involved in the proliferation and migration of many tumor cells. However, its role in HCC is still unclear. In this study, we identify that AEBP2 was upregulated in HCC samples from the UALCAN and Kaplan-Meier Plotter database, which was correlated to the overall survival time of HCC patients. Real-time quantitative PCR and Western blotting confirmed that the expression of AEBP2 in HCC cells was higher than normal liver cells. After silencing AEBP2 in HepG2 and Huh-7 cells, the effects of the proliferation, apoptosis, migration and invasion were detected by colony formation, CCK-8, flow cytometry, scratch healing and Transwell chamber, respectively. Compared with the control group, down-regulation of AEBP2 expression inhibited the proliferation, migration and invasion in HepG2 and Huh-7 cells, as well as promoted apoptosis (P<0. 05). Immunofluorescence and Western blotting results showed that AEBP2 silencing inhibited epithelial-mesenchymal transformation (EMT) (P < 0. 05). Bioinformatics analysis showed that AEBP2 is involved the PI3K/Akt signaling pathway. Western blotting results confirmed that silencing AEBP2 down-regulated the expression levels of PI3K, p-AKT (S473), mTOR, MMP-2 and MMP-9 proteins (P<0. 05). In addition, the effects of AEBP2 silencing on HepG2 cells migration and invasion could be reversed by PI3K/Akt pathway agonist insulin-like Growth Factors (IGF-1) (P < 0. 01). In summary, our study showed that AEBP2 promoted the proliferation and migration of HCC cell by regulating PI3K/AKT pathway. This study provided a theoretical basis for the role of AEBP2 in HCC.

Result Analysis
Print
Save
E-mail