1.Exosome-mediated lnc-ABCA12-3 promotes proliferation and glycolysis but inhibits apoptosis by regulating the tolllike receptor 4uclear factor kappa-B signaling pathway in esophageal squamous cell carcinoma
Junliang MA ; Yijun LUO ; Yingjie LIU ; Cheng CHEN ; Anping CHEN ; Lubiao LIANG ; Wenxiang WANG ; Yongxiang SONG
The Korean Journal of Physiology and Pharmacology 2023;27(1):61-73
Esophageal squamous cell carcinoma (ESCC) is a kind of malignant tumor with high incidence and mortality in the digestive system. The aim of this study is to explore the function of lnc-ABCA12-3 in the development of ESCC and its unique mechanisms. RT-PCR was applied to detect gene transcription levels in tissues or cell lines like TE-1, EC9706, and HEEC cells. Western blot was conducted to identify protein expression levels of mitochondrial apoptosis and toll-like receptor 4 (TLR4)uclear factor kappa-B (NF-κB) signaling pathway. CCK-8 and EdU assays were carried out to measure cell proliferation, and cell apoptosis was examined by flow cytometry. ELISA was used for checking the changes in glycolysis-related indicators.Lnc-ABCA12-3 was highly expressed in ESCC tissues and cells, which preferred it to be a candidate target. The TE-1 and EC9706 cells proliferation and glycolysis were obviously inhibited with the downregulation of lnc-ABCA12-3, while apoptosis was promoted. TLR4 activator could largely reverse the apoptosis acceleration and relieved the proliferation and glycolysis suppression caused by lnc-ABCA12-3 downregulation. Moreover, the effect of lnc-ABCA12-3 on ESCC cells was actualized by activating the TLR4/NF-κB signaling pathway under the mediation of exosome. Taken together, the lnc-ABCA12-3 could promote the proliferation and glycolysis of ESCC, while repressing its apoptosis probably by regulating the TLR4/NF-κB signaling pathway under the mediation of exosome.
2.Comparison of different obesity indices in predicting risk of hypertension among adults in Gansu Province
Qingyun SHI ; Binghua CHEN ; Wanrong LUO ; Yaqiong WANG ; Hao HUANG ; Qian ZHANG ; Jiao MA ; Binguo YAN ; Chenlu WU ; Leilei PEI ; Fangyao CHEN ; Yijun KANG ; Shaonong DANG ; Xinhua WANG ; Hong YAN ; Yaling ZHAO ; Yi ZHAO
Journal of Xi'an Jiaotong University(Medical Sciences) 2022;43(4):581-587
【Objective】 To compare the ability of body mass index (BMI), body fat percentage (BFP), waist circumference (WC), waist-to-height ratio (WHtR), visceral fat index (VFI) and the combinations of two kinds of obesity indices to predict the risk of hypertension. 【Methods】 Data collected in the baseline survey of “Gansu Province’s Urban and Rural Natural Population Cohort Establishment and Tumor Follow-up Study” were analyzed. Area under the curve (AUC) of ROC curve with covariates was used to analyze and compare the effects of individual obesity evaluation index and the combination of two kinds of obesity indices in predicting the risk of hypertension. 【Results】 Analyses of data of 20,079 adults showed that the AUC of BMI, WC, WHtR, BFP and VFI was 0.636, 0.604, 0.615, 0.614 and 0.619, respectively. AUC of the combination of BMI and WC (0.643) was higher than that of BMI (0.636); however, the change rate of AUC was only 1.09%. AUC of the combinations of WC, WHtR and VFI, the three central obesity evaluation indices, and BFP, a general obesity evaluation index, were lower than that of BMI. The optimal cutoff value for BMI was 24.2 kg/m2. 【Conclusion】 The effect of BMI in predicting the risk of hypertension is better than that of BFP, WC, WHtR and VFI. The effects of the combinations of the two kinds of obesity evaluation indices are not better than that of BMI. To prevent and control hypertension, adults should keep their BMI under overweight.
3.Is oral microbiome of children able to maintain resistance and functional stability in response to short-term interference of ingesta?
Fangqiao WEI ; Xiangyu SUN ; Yufeng GAO ; Haoyu DOU ; Yang LIU ; Lili SU ; Haofei LUO ; Ce ZHU ; Qian ZHANG ; Peiyuan TONG ; Wen REN ; Zhe XUN ; Ruochun GUO ; Yuanlin GUAN ; Shenghui LI ; Yijun QI ; Junjie QIN ; Feng CHEN ; Shuguo ZHENG
Protein & Cell 2021;12(6):502-510
4.Effects of doxorubicin-loaded tumor-derived extracellular vesicles on cell proliferation and apoptosis of human hepatocellular carcinoma
Yuyu LUO ; Wenjun YUE ; Ying LUO ; Yingtang GAO ; Jinjuan ZHANG ; Hui LIU ; Yijun WANG
Chinese Journal of Hepatobiliary Surgery 2020;26(4):247-252
Objective:To investigate the effects of doxorubicin (Dox)-loaded tumor-derived extracellular vehicles (EVs) on cell proliferation and apoptosis of human hepatocellular carcinoma.Methods:The extracellular vesicles loaded with Adriamycin (EVs-Dox) were prepared by the method of directly co-incubation. The morphology of EVs-Dox was detected by transmission electron microphotometer. The diameter of EVs-Dox was determined by dynamic light scattering (DLS). Western blotting was utilized to detect the expression of CD63, HSP 70 and TSG 101 in the EVs-Dox. The encapsulation efficiency of EVs-Dox was calculated by tandem mass spectrometry (LC-MS/MS). The drug release experiment in vitro was utilized to simulate the drug release of drug-loaded vesicles in vivo. PKH67-labeled EVs-Dox was showed cellular uptake. After treatment with EVs-Dox, MTS assay and flow cytometry assay were conducted to investigate the effects of EVs-Dox on cell proliferation and apoptosis of PLC/PRF/5.Results:The EVs-Dox showed an elliptical double-layer membrane structure of different sizes under transmission electron microscope. The diameter of EVs-Dox was (115.9±5.2) nm.Western blotting data showed high expression of CD 63, HSP 70 and TSG 101 in the EVs-Dox. The encapsulation efficiency of EVs-Dox was 0.77%. The in vitro release experiment showed that the drug-loaded vesicles could release the drug slowly. PKH67-labeled EVs-Dox showed that carcinoma cells can uptake EVs-Dox within 16h. MTS assay showed that the cell viability rate of (54.9±3.2) % was significantly lower than that of in the Dox group [(77.7±5.4)%, P<0.05]. EVs-Dox inhibited hepatocellular carcinoma proliferation. Flow cytometry assay showed that the apoptosis rate of EVs-Dox (47.9±7.0) % was higher than that in the Dox group [(38.0±1.5)%, P<0.05]. Conclusion:EVs-Dox inhibits cell proliferation and accelerates apoptosis of hepatocellular carcinoma cells.
5.Medication Therapy Management Practice of A Chronic Disease Patient with Adverse Drug Reactions Caused by Candesartan
Lili LIU ; Yi FENG ; Wensheng LIU ; Yijun WANG ; Chaoyi REN ; Yuyu LUO
China Pharmacy 2019;30(11):1559-1564
OBJECTIVE: To provide reference for the evaluation of the correlation between drugs and adverse drug reaction (ADR) and the implementation of medication therapy management (MTM). METHODS: Clinical information of a elderly patient with chronic disease (hypertension and coronary heart disease) whose suffered from leukocyte and platelet counts reduction and abnormal liver biochemical examination after taking candesartan were analyzed retrospectively in outpatient department of Tianjin Third Central Hospital. MTM pharmacists analyzed the correlation of candesartan with ADR using Naranjo evaluation scale method. The reasons for abnormal liver biochemical examination were analyzed by Naranjo evaluation scale method combined with Roussel Uclaf causality analysis method (called RUCAM method for short). The medication reconciliation was conducted according to the results, and pharmacists cooperated with doctors to set individualized medication regimen and follow-up. RESULTS: By Naranjo evaluation scale method, analysis results showed that candesartan was “probably related” to ADR. By RUCAM method, analysis results showed that candesartan was “probably related” to liver biochemical abnormalities. MTM pharmacists suggested that candesartan should be stopped in time and the patient’s medication should be adjusted. The physician and the patient adopted the pharmacist’s advice. After 38 days of drug withdrawal, the patient’s ADR symptoms disappeared, and leukocyte count, platelet count and liver biochemical examination were normal. After adjustment of medication, the patient was followed up for 6 months with normal blood pressure. CONCLUSIONS: Naranjo evaluation scale method and RUCAM are simple and feasible in evaluating the correlation of drugs with ADR and hepatotoxicity. The two methods are consistent in evaluating the correlation between drugs and hepatotoxicity. Naranjo scale method and RUCAM method can be combined to analyze the correlation between drugs and ADR with abnormal liver biochemical examination.
6. Therapeutic effect of early directional catheterization on malignant middle cerebral artery infarction
Maogang CHEN ; Wensu YU ; Chenglong DONG ; Yijun DENG ; Suwen ZHU ; Jinbiao LUO ; Handong WANG ; Shujie SUN
Chinese Journal of Emergency Medicine 2019;28(10):1282-1286
Objective:
To investigate the efficacy and safety of cuboid stereotactic aspiration of necrotic brain tissue for treating malignant middle cerebral artery infarction in the elderly patients.
Methods:
Sixteen elderly patients with malignant middle cerebral artery infarction were selected from June 2017 to January 2019 in our hospital. Patients were followed up for 6 months to evaluate the efficacy of stereotactic aspiration of necrotic brain tissue using the modified Rankin Scale (mRS).
Results:
The 30-day mortality was 18.75%. Among the 16 elderly patients, 6 (37.5%) had an mRS score of 3 (defined as moderate disability), 6 (37.5%) had an mRS score of 4 (defined as moderate to severe disability), 1 (6.25%) had an mRS score of 5 (defined as severe disability), and 3 (18.75%) had an mRS score of 6. The probability of 6-month favorable outcome, defined as an mRS score of ≤3, was 37.5%, and the 6-month mortality was 18.75%.
Conclusions
It is a simple, minimally invasive, effective and safe method to treat malignant middle cerebral artery infarction in the elderly patients with cuboid stereotactic aspiration of necrotic brain tissue, which needs to be confirmed by further randomized controlled studies.
7.Theory and practice of involved-field radiotherapy for esophageal squamous cell carcinoma
Yijun LUO ; Xiaoli WANG ; Jinming YU ; Minghuan LI
Chinese Journal of Radiation Oncology 2017;26(8):965-969
Chemoradiotherapy is a major treatment for inoperable esophageal carcinoma (EC).However, there is still controversy over the target volume for radiation, particularly nodal target volume.EC is characterized by a high rate of lymph node metastasis, and its metastatic pattern is not always predictable.Elective nodal irradiation (ENI) will increase the radiation field, which may increase the incidence of adverse events.Some investigators used involved-field irradiation (IFI) to reduce treatment-related toxicities without compromising survival.Studies have demonstrated that regional and distant micrometastases can be controlled, to some extent, by chemotherapy, incidental irradiation, and the abscopal effects of radiation.With either ENI or IFI, EC recurrence is usually found in the primary tumor and at distant sites, without survival difference.These data suggest that IFI is feasible in EC patients.
8.Research advances in subventricular zone irradiation in glioblastoma
Chengang WANG ; Yijun LUO ; Minghuan LI ; Jinming YU
Chinese Journal of Radiation Oncology 2017;26(6):702-705
Glioblastoma multiforme (GBM,WHO grade IV) contains some glioma stem cells which have unique self-renewal capacity and multilineage potency.There are numerous neural stem cells in the subventricular zone (SVZ) of adult human brain;it may also act as a storehouse of glioma stem cells that can promote the development and recurrence of a tumor.GBM involving SVZ is prone to early recurrence and intracranial metastasis after resection,so irradiation of the SVZ potentially influences the survival of GBM patients.This review provides a summary of related experimental and clinical studies,and discusses the value of irradiation of the SVZ in GBM patients and the direction of future research.
9.Role of the Ventromedial Hypothalamic Orexin-1 and Orexin-1 Receptors in Regulation of Gastric Acid Secretion in Conscious Rats
Yijun ZOU ; Xiao LUAN ; Yang LIU ; Feifei GUO ; Xiangrong SUN ; Luo XU
Progress in Modern Biomedicine 2017;17(26):5048-5053
Objective:This study aimed to explore the Ventromedial Hypothalamic Orexin-1 and Orexin-1 Receptors in Regulation of Gastric Acid Secretion in Conscious Rats.Methods:Rats were anaesthetized and fitted with a stainless steel carmula placed just above the VMH or paracele,after random allocation orexin-A,[Pro34]-peptide YY and [CPP1-7,NPY19-23,Ala31,Aib32,Gln34] -pancreatic polypeptide were injected in the VMH;SB-334867 was intraperitoneal injection;atropine was subcutaneous injection;GR-231118 and CGP-71683 were injected in the paracele.Using pyloric ligation model,tests the effect of different drugs on rat gastric acid secretion and gastric juice volume.Results:OXA induced dose-dependent increase of gastric acid secretion;SB-334867 induced dose-dependent inhibition of gastric acid secretion.The stimulatory effect of OXA on acid secretion was inhibited by SB-334867;atropine induced dose-dependent increase of gastric acid secretion and block the effect of orexin-A on gastric acid secretion;the gastric acid secretion was inhibited by GR-231118 or CGP-71683,and GR-231118 or CGP-71683 were blocked the effect of orexin-A on gastric acid secretion;Intraventromedial hypothalamic injections of [CPP1-7,NPY19-23,Ala31,Aib32,Gln34]-pancreatic polypeptide increased gastric acid secretion.Conclusion:It is suggested that endogenous orexin-A acts on the ventromedial hypothalamus to stimulates acid secretion.This stimulatory effect is probably mediated through orexin receptor,Y1 and Y5 receptor,and the vagus nerve system.
10.Research advances in postoperative radiotherapy for esophageal squamous cell carcinoma
Yijun LUO ; Minghuan LI ; Yingming ZHU ; Jinming YU
Chinese Journal of Radiation Oncology 2016;25(8):891-894
Surgery remains an important therapeutic method for localized esophageal cancer, but the 5?year survival rate of patients undergoing surgical resection alone is only 20%?25%. Early studies show that postoperative radiotherapy reduced regional recurrence rate, but did not increase the survival rate. Most recent studies show that stage Ⅲ or lymph node?positive patients can obtain survival benefit from postoperative radiotherapy, and patients in pT2?3 N0 M0 stage may also benefit from postoperative radiotherapy. The recommended radiotherapy target volumes include bilateral supraclavicular areas, superior mediastinum, subcarinal area, and tumor bed. It is recommended in most studies that regional lymph nodes in the upper abdomen should be included in patients with lower?segment lesions. The locally advanced patients may benefit more from postoperative radiotherapy combined with chemotherapy. The significance of postoperative radiotherapy for esophageal squamous cell carcinoma, target volume design, and combined chemotherapy need individualized consideration and more clinical evidence.

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