1.Long Noncoding RNA HEIH Promotes Colorectal Cancer Tumorigenesis via Counteracting miR-939-Mediated Transcriptional Repression of Bcl-xL.
Chunhui CUI ; Duanyang ZHAI ; Lianxu CAI ; Qiaobin DUAN ; Lang XIE ; Jinlong YU
Cancer Research and Treatment 2018;50(3):992-1008
PURPOSE: Studies have found that long noncoding RNA HEIH (lncRNA-HEIH) is upregulated and facilitates hepatocellular carcinoma tumor growth. However, its clinical significances, roles, and action mechanism in colorectal cancer (CRC) remains unidentified. MATERIALS AND METHODS: lncRNA-HEIH expression in CRC tissues and cell lines was measured by quantitative real-time polymerase chain reaction. Cell CountingKit-8, ethynyl deoxyuridine incorporation assay, terminal deoxynucleotidyl transferase dUTP nick end labeling staining, and nude mice xenografts assays were performed to investigate the roles of lncRNA-HEIH. RNA pull-down, RNA immunoprecipitation, chromatin immunoprecipitation, and luciferase reporter assays were performed to investigate the action mechanisms of lncRNA-HEIH. RESULTS: In this study, we found that lncRNA-HEIH is significantly increased in CRC tissues and cell lines. lncRNA-HEIH expression is positively associated with tumor size, invasion depth, and poor prognosis of CRC patients. Enhanced expression of lncRNA-HEIH promotes CRC cell proliferation and decreases apoptosis in vitro, and promotes CRC tumor growth in vivo. Whereas knockdown of lncRNA-HEIH inhibits CRC cell proliferation and induces apoptosis in vitro, and suppresses CRC tumor growth in vivo. Mechanistically, lncRNA-HEIH physically binds to miR-939. The interaction between lncRNA-HEIH and miR-939 damages the binding between miR-939 and nuclear factor κB (NF-κB), increases the binding of NF-κB to Bcl-xL promoter, and promotes the transcription and expression of Bcl-xL. Moreover, Bcl-xL expression is positively associatedwith lncRNA-HEIH in CRC tissues. Blocking the interaction between lncRNA-HEIH and miR-939 abolishes the effects of lncRNA-HEIH on CRC tumorigenesis. CONCLUSION: This study demonstrated that lncRNA-HEIH promotes CRC tumorigenesis through counteracting miR-939-mediated transcriptional repression of Bcl-xL, and suggested that lncRNA-HEIH may serve as a prognostic biomarker and therapeutic target for CRC.
Animals
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Apoptosis
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Carcinogenesis*
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Carcinoma, Hepatocellular
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Cell Line
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Cell Proliferation
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Chromatin Immunoprecipitation
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Colorectal Neoplasms*
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Deoxyuridine
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DNA Nucleotidylexotransferase
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Heterografts
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Humans
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Immunoprecipitation
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In Vitro Techniques
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Luciferases
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Mice
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Mice, Nude
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Prognosis
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Real-Time Polymerase Chain Reaction
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Repression, Psychology*
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RNA
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RNA, Long Noncoding*
2.Preliminary exploration on evaluation system of hospital young talent orientation training based on AHP method
Tongtong CUI ; Xia WANG ; Yao ZHANG ; Yanjuan JIANG ; Deyang LIN ; Jinlong LV ; Yu CUI ; Jia MA ; Jinning DUAN
Chinese Journal of Medical Science Research Management 2018;31(3):215-218
Objective Aimed to develop the evaluation system and weight of hospital orientation training.Methods Literature review,Delphi,questionnaire,AHP to develop the evaluation system and determined the weight with Satty's method.Results The evaluation system includes 3 division's 13 items.Conclusions Course content,teaching method,course difficultness and occupational plan ning play the most important role,and should be paid more attention.
3.Role of transcatheter arterial embolization in the management of refractory hematuria of prostatic origin
Jinlong ZHANG ; Feng DUAN ; Kai YUAN ; Xiujun ZHANG ; Quanyu WANG ; Zhiqiang LI ; Jie PAN ; Xiaoguang LI ; Maoqiang WANG
Chinese Journal of Radiology 2019;53(2):121-126
Objective To evaluate the safety and efficacy of transcatheter arterial embolization (TAE) in the management of refractory hematuria of prostatic origin (RHPO). Methods This retrospective study from 6 hospitals in china consisted of 31 patients (mean age 75.0±7.5 years, range 58 to 84 years) who underent transcatheter arterial embolization (TAE) for RHPO between February 2011 and January 2017. Patients with RHPO who had complete imaging and clinical data were enrolled. Patients with incomplete clinical data, inability to assess hemostasis, and contraindications to TAE were excluded. The cause of RHPO was benign prostatic hyperplasia (BPH) in nine patients, prostate cancer in twelve, transurethral resection of prostate in four, open prostatectomy in two and prostatic sarcoma in four. Superselective arterial embolization, non-superselective arterial embolization or intra-arterial infusion chemotherapy was performed according to the etiology and angiography. Angiographic findings, technical success rate, clinical success rate, complications were recorded. Results Of the 31 patients, 6 patients (19.4%) were with active bleeding, 4 (12.9%) with aneurysm and 27 (87.1%) with abnormal neovascularization on the angiogram. The 31 patients underwent a totle of 37 TAE, the technical success rate was 100.0%(37/37) and the recent hemostasis success rate was 90.3%(28/31). The incidence of mild complications was 38.7%(13/31), there was no serious complication associated with TAE. Conclusion TAE is a safe and effective method for the treatment of refractory hematuria of prostatic origin.
4.Histopathological and immunohistochemical changes of gastric fundus and duodenum after bariatric embolization in the New Zealand rabbits
Jinxin FU ; Feng DUAN ; Jinlong ZHANG ; Bing YUAN ; Heng ZHANG ; Jieyu YAN ; Yang GUAN ; Yan WANG ; Kai YUAN ; Maoqiang WANG
Chinese Journal of Radiology 2023;57(3):306-310
Objective:To investigate the histopathological and immunohistochemical changes of gastric fundus and duodenum after bariatric embolization of left gastric artery and gastroduodenal artery in obesity New Zealand rabbit models.Methods:Twenty obesity New Zealand rabbit models were successfully established and divided into two groups using stratified randomization. Left gastric artery and gastroduodenal artery were embolized with gelatin sponge (350-560 μm) in experimental group, left gastric artery and gastroduodenal artery were perfused with normal saline in control group. All animals were sacrificed for pathological, immunohistochemical examination and Western Blot analysis 4 weeks post embolization, the density of ghrelin producing cells and the gray ratio of ghrelin protein band were measured and compared by the independent sample t test. Results:Macropathological examination showed ulceration in the anterior wall of the gastric body in one rabbit, histopathological examination showed mucosa ulceration in the gastric body in 3 rabbits in experimental group. Immunohistochemical examination showed that the ghrelin producing cells of gastric fundus and duodenum in the experimental group were significantly less than those in the control group (10.0±5.1 vs.27.7±3.4, t=12.35, P<0.05;5.6±2.6 vs. 12.3±2.1, t=4.73, P<0.05). Western Blot analysis showed that the gray ratio of ghrelin bands of gastric fundus and duodenum in the experimental group were significantly lower than that in the control group (0.65±0.05 vs.1.12±0.09, t=9.62, P<0.05;0.55±0.03 vs. 0.94±0.08, t=7.98, P<0.05). Conclusions:Immunohistochemical and Western Blot analysis showed that the ghrelin-producing cells of gastric fundus and duodenum in the experimental group were significantly less than those in the control group after bariatric embolization, histopathologic analysis indicated that bariatric embolization was a safe technique.
5.MRI presentation and pathogenesis of tennis legs
Meng DAI ; Lian YANG ; Xiaoqing LIU ; Jinlong ZHENG ; Xiaoming LIU ; Deyu DUAN ; Xi LIU
Chinese Journal of Radiology 2019;53(7):579-582
Objective To evaluate the imaging features of MRI of tennis legs and to explore the pathogenesis of tennis legs. Methods A retrospective analysis was made on the MRI images of 38 patients with tennis legs which met the criteria and were clinically diagnosed in our hospital from May 2014 to June 2018. All patients underwent non?enhanced MRI. Coronal T1WI、T2WI fast spin echo (TSE) and transverse proton density weighted imaging (PDWI) were performed. The signs of fluid collection between gastrocnemius muscle (GM) and soleus muscle (SM),muscle and tendon injuries, superficial vein dilatation of calf were observed and recorded. Results Coronal T1WI, T2WI TSE and transverse PDWI sequences showed 30 (75.0%) places fluid collection (hematoma or effusion) between medial head of the gastrocnemius muscle (MCM) and SM, 11 (27.5%) places fluid collection (hematoma or effusion) between lateral head of gastrocnemius muscle(LGM)and SM,7 (17.5%) places fluid collection (hematoma or effusion) in MGM and 2 (5.0%) placesin SM. There were 17 (42.5%) places that hematoma or effusion spread around the fascia of the lower leg. The diameter and thickness of hematoma or effusion are about 1.7-22.3 cm and 0.2-3.5 cm, respectively. Rupture of the GM was seen in 37 (92.5%) places,including 37 places rupture of the MGM at the myotendinous junction, 15 places rupture of the LGM at the myotendinous junction, 24 places tendonrupture of MGM,3 places tendon rupture of MGM and LGM,and 2 places tendon rupture of LGM. The maximum diameter of tendon rupture was 1.2-27.0 mm. The muscle rupture of MGM was seen in one place, and muscle rupture of MGM and LGM was seen in one place at the same time. Rupture of the SM was seen in 15 (37.5%) places, including 15 places rupture of the SM at the myotendinous junction, 2 places muscle rupture of SM, 6 places tendonrupture of SM. The maximum diameter of tendon rupture was 2.5-14.9 mm. Rupture of plantaris tendon (PT) was seen in 4 (10.0%) places. Superficial vein dilatation was seen in 3 (7.5%) places. Conclusion This study shows that the rupture of the MGM at the myotendinous junction and the tendon is the main responsibility of tennis leg.
6.Whole-process ultrasound-guided percutaneous portal vein puncture islet transplantation for diabetes: a report of 16 cases
Jinliang DUAN ; Bowen ZHUANG ; Fang BAI ; Xiangchao LING ; Jinlong GONG ; Daopeng YANG ; Xiaofeng ZHU ; Xiaoshun HE ; Xiaoyan XIE ; Yanbing LI ; Changxi WANG ; Anbin HU
Chinese Journal of Organ Transplantation 2021;42(12):733-737
Objective:To explore the application value of whole-process ultrasound-guided percutaneous portal vein puncture islet transplantation.Methods:From October 2018 to May 2021, 16 diabetics underwent whole-process ultrasound-guided percutaneous portal vein puncture islet transplantation at First Affiliated Hospital of Sun Yat-sen University.The whole process was guided by ultrasound for completing percutaneous portal vein puncture catheterization, islet infusion monitoring, bleeding prevention and ablation hemostasis after bleeding.Results:Ten patients [8 males and 2 females with a mean age of(45.9±21.1)years]underwent 16 islet transplants, including one islet(5 cases), two islets(4 cases)and three islets(1 case). A single puncture was successfully performed without damage to other extrahepatic organs, persistent portal hypertension, portal vein embolism or infection.Bleeding at liver puncture site occurred in 3 cases and ultrasound radiofrequency ablation was performed for immediate hemostasis.Among them, postoperative blood glucose stabilized at 4~12 mmol/l post-operation.And 5 cases(31.3%)achieved insulin independence for>2 months and 10 cases(62.5%)lowered insulin dosage by>50% as compared with preoperative level.The level of fasting C-peptide recovered or was higher than normal in 10 cases(62.5%)and became obviously elevated in the remainders.In 11 cases(68.8%)of them, liver transaminase was briefly and mildly elevated post-operation, and no other complications were observed.Conclusions:The whole-process ultrasound-guided percutaneous portal vein islet transplantation is both safe and feseasible.It avoids the injury of transplanted kidney caused by contrast agent and radiological radiation to operator and patient.It is a method of islet transplantation worth a wider popularization.
7.Discussion on the Differentiation Treatment Strategy of Borderline Hypertension Based on the Theory of "Examining the Symptoms First, Identifying the Constitutions as Reference, and Combining the Diseases and Patterns"
Xiaoxiao ZHANG ; Qingqing WANG ; Jinlong DUAN ; Jianguo LIN ; Ziyi SUN ; Xiaoning SUN ; Wenqian ZUO ; Kuiwu YAO
Journal of Traditional Chinese Medicine 2024;65(12):1224-1229
Based on the clinical thinking of combining diseases and patterns, we combined disease identification, pattern differentiation, and constitution identification, and put forward the theory of identifying and treating critical hypertension, which is "examining the symptoms first, identifying the constitutions as reference, and combining the diseases and patterns". Firstly, the starting point of identifying the disease is to examine the symptoms, and those with precise diagnosis and strong specificity will be diagnosed with the disease, while those with relatively broad diagnosis and fuzzy characteristics will be emphasised on identifying constitutions and differentiating patterns. Focusing on the impact of constitution identification on disease identification and pattern differentiation, constitution identification could be the basis when no symptoms to identify, and based on the theory of "constitution-disease correlation" and "constitution-pattern correlation" to improve the understanding of borderline hypertension from the group and individual level, which helps to identify and predict the development of the diseases and patterns; if the symptoms are complicated and difficult to identify, it is necessary to take syndrome as the outline, use the syndrome to unify the disease, and then refer to the constitution to legislate and prescribe medications. This paper summarizes the traditional Chinese medicine clinical differentiation and treatment strategy of borderline hypertension clear and easy to grasp, with a view to provide a feasible and efficient reference for prevention and treatment of borderline hypertension with traditional Chinese medicine.
8.Structural repurposing of SGLT2 inhibitor empagliflozin for strengthening anti-heart failure activity with lower glycosuria.
Yixiang XU ; Chao ZHANG ; Kai JIANG ; Xinchun YANG ; Feng CHEN ; Zhiyang CHENG ; Jinlong ZHAO ; Jiaxing CHENG ; Xiaokang LI ; Xin CHEN ; Luoyifan ZHOU ; Hao DUAN ; Yunyuan HUANG ; Yaozu XIANG ; Jian LI
Acta Pharmaceutica Sinica B 2023;13(4):1671-1685
Sodium-glucose cotransporter 2 (SGLT2) inhibitors have been reapproved for heart failure (HF) therapy in patients with and without diabetes. However, the initial glucose-lowering indication of SGLT2i has impeded their uses in cardiovascular clinical practice. A challenge of SGLT2i then becomes how to separate their anti-HF activity from glucose-lowering side-effect. To address this issue, we conducted structural repurposing of EMPA, a representative SGLT2 inhibitor, to strengthen anti-HF activity and reduce the SGLT2-inhibitory activity according to structural basis of inhibition of SGLT2. Compared to EMPA, the optimal derivative JX01, which was produced by methylation of C2-OH of the glucose ring, exhibited weaker SGLT2-inhibitory activity (IC50 > 100 nmol/L), and lower glycosuria and glucose-lowering side-effect, better NHE1-inhibitory activity and cardioprotective effect in HF mice. Furthermore, JX01 showed good safety profiles in respect of single-dose/repeat-dose toxicity and hERG activity, and good pharmacokinetic properties in both mouse and rat species. Collectively, the present study provided a paradigm of drug repurposing to discover novel anti-HF drugs, and indirectly demonstrated that SGLT2-independent molecular mechanisms play an important role in cardioprotective effects of SGLT2 inhibitors.