1.Research progress of long non-coding RNA in tumor epithelial-mesenchymal transition
Yi ZHAO ; Xingxing ZHANG ; Min XU
Journal of International Oncology 2015;(8):599-601
Long non-coding RNA (lncRNA)is a kind of RNA molecule which is longer than 200 nucleotides and has no capacity of coding proteins.Accumulating evidences have indicated that several lncRNAs,such as HOTAIR,MALAT-1 ,H1 9 and BANCR may promote tumor metastasis by inducing epitheli-al-mesenchymal transition.
2.Expressions and roles of long non-coding RNA UCA1 in tumors
Yi ZHAO ; Xingxing ZHANG ; Min XU
Journal of International Oncology 2015;(7):519-521
Urothelial carcinoma associated antigen 1(UCA1)is a highly bladder cancer-specific long non-coding RNA(lncRNA),and it does not have the function of encoding protein. UCA1 differentially expre-sses in various fetal tissues,but its expression is turned off in most adult tissues. It reactivates during tumori-genesis. Researches indicate that UCA1 may regulate cell proliferation,apoptosis,metastasis and chemoresis-tance of tumors,such as bladder cancer,breast cancer and hepatocellular cancer.
3.Application of retinal tomography in primary open angle glaucoma
Wei WANG ; Xingxing LI ; Haixia ZHAO
Chinese Journal of Rehabilitation Theory and Practice 2005;11(1):56-57
ObjectiveTo study the application of retinal tomography in primary open angle glaucoma diagnosis.MethodsThe differences between POAG, high myopia with suspected glaucoma and normal volunteers on the rim area, rim volume and the thickness of retinal nerve fiber layer (RNFL) thickness in quadrants under Heideberg retinal tomography-Ⅱ(HRT-Ⅱ) were analyzed.ResultsIn the cases of POAG and high myopia with suspected glaucoma, the values of rim area, rim volume and RNFL thickness were significantly lower than that in normal group.ConclusionRetinal tomography can be used in the diagnosis of POAG.
4.Combined surgery and sclerotherapy for massive venous malformations of the tongue.
Xingxing HUANG ; Haixiao ZOU ; Xiaoke GUO ; Yifang ZHAO
Chinese Journal of Plastic Surgery 2016;32(1):14-17
OBJECTIVETo explore the curative effect of surgery and selerotherapy for massive venous malformations of the tongue.
METHODSFrom January 2005 to December 2014, subtotal resection or debulking for 15 cases of massive venous malformation in the tongue was undertaken with multiple sessions of pre- and post-operative injection therapy of pingyangmycin, lauromacrogol and absolute ethanol.
RESULTSAll signs associated with the lesions including eating, sleep and speech disorders disappeared after treatment. Complete or near complete resolution was achieved in 9 cases, and a significant reduction in size in a further 6 cases after surgical excision and peri-operative sclerotherapy.
CONCLUSIONSFor massive venous malformations of the tongue, surgical excision combined with multiple sessions of sclerotherapy is a good treatment option.
Bleomycin ; analogs & derivatives ; therapeutic use ; Combined Modality Therapy ; methods ; Ethanol ; therapeutic use ; Humans ; Injections, Intralesional ; Polyethylene Glycols ; therapeutic use ; Sclerosing Solutions ; therapeutic use ; Sclerotherapy ; Tongue ; blood supply ; Treatment Outcome ; Vascular Malformations ; therapy ; Veins ; abnormalities
5.Correlation between serum tumor markers and the diagnosis and staging of pancreatic cancer
Hengzhong FANG ; Jiong CHEN ; Jinqian ZHAO ; Hong XU ; Xingxing ZHU
International Journal of Surgery 2016;43(3):171-173
Objective Resarech on the correlation between serum tumor markers CA19-9,CEA,CAS0 and the early diagnosis and staging of pancreatic cancer.Methods To compare the serum levels of the CA19-9,CEA,CA50 in 51 patients with pancreatic cancer,10 benign tumor patients and 12 chronic pancreatitis patients admitted to the Department of general surgery,Anhui Provincial Hospital from January 2013 to October 2015.Results CA19-9 expression in different stages of pancreatic cancer and other pancreatic diseases were statistically significant (P < 0.05).The difference of CEA and CA50 expression in pancreatic cancer and other pancreatic diseases was statistically significant (P<0.05).But the CEA in stage Ⅰ and stage Ⅱ,stage Ⅰ and stage Ⅲ,stage Ⅱ and stage Ⅲ patients with clear expression of the difference was not statistically significant (P > 0.05).The was no significant difference in the expression of CA50 in pancreatic cancer stage Ⅰ and stage Ⅱ,Ⅲ and Ⅳ (P > 0.05).The positive rate of CA19-9 in the diagnosis of pancreatic cancer was higher than that of CEA and CA50.The positive rate of CA19-9,CEA,CAS0 and were the highest in the diagnosis of pancreatic cancer.Conclusions The expression levels of CA19-9,CEA and CA50 in serum have a certain relevance to the early diagnosis of pancreatic cancer,and the value of CA19-9 is the highest in the stage of pancreatic cancer.
6.Study on the Sustained Release of BSA from Chitosan-OREC/BSA Films Coated Mats in Vitro
Ruifen XU ; Qingxia ZHAO ; Xin CHEN ; Xingxing ZHENG ; Xuyang FENG
Journal of Modern Laboratory Medicine 2017;32(4):119-121,124
Objective To investigate the sustained release of BSA from chitosan-OREC/BSA films coated mats in vitro.Methods The negatively charged cellulose acetate (CA) fibrous mats were modified with multilayers of the positively charged chitosan or chitosan-OREC intercalated composites and the negatively charged bovine serum albumin (BSA) via electrostatic layer-by-layer (LBL) self-assembly technique.The adsorption and rinsing steps were repeated until the desired number of deposition bilayers was obtained.The in vitro BSA encapsulation and release experiments demonstrated that OREC could affect the degree of protein loading capacity and release ficiency of the LBL films coating.Results In the pH-gradient release assay,only a small amount of BSA was released from the mats in 1 h.As the time increased,the release rate of BSA of all the samples gradually went up to the maximum data within 8 h.For the samples with identical number of bilayers and record time,obvious increasing of the release amount could be seen in pH 7.4,in comparison with pH 1.2.Besides,doubling bilayers film-coated mats generally.Meanwhile,it was slightly distinguishable between 5 and 5.5 as well as 10 and 10.5 bilayers (t=0.651~ 1.324,P>0.05).Interestingly,it could be seen that protein release of the chitosan-OREC/BSA films coated mats remarkably increased compared with that of chitosan/BSA films coated mats(t=2.264~ 2.305,P<0.05).Conclusion The release of protein in the initial time could be controlled by adjusting the number of deposition bilayers,the outmost layer and the composition of coating bilayers.
7.Effect of long non-coding RNA UCA1 on invasion and metastasis of pancreatic cancer cell lines
Youli ZHANG ; Yi ZHAO ; Xingxing ZHANG ; Guoying WANG ; Aihua GONG ; Xin NI ; Min XU
Basic & Clinical Medicine 2015;(9):1223-1227
Objective To explore the expression of urothelial carcinoma-associated 1 ( UCA1 ) in pancreatic cancer cell lines and its influence on the invasion and metastasis of the pancreatic cancer cells .Methods The expression of UCA1 in pancreatic cancer tissues and paired adjacent normal tissues ( 11 cases ) and 5 pancreatic cancer cell lines was analyzed by real-time PCR.The level of UCA1 in BxPC-3 was knocked down by small interfering RNA . The ability of invasion and migration in vitro of transfected BxPC-3 was detected by Transwell invasion assay and wound healing assay .The protein levels of MMP-2 and MMP-9 were measured by Western blot experiment .Results The expression level of UCA1 in pancreatic cancer tissues was higher than that in paired adjacent normal tissues , and UCA1 differentially expressed in 5 pancreatic cancer cell lines .Down-regulation of UCA1 by siRNA suppressed the expression of MMP-2 and MMP-9 in BxPC3, and dramatically impaired the ability of invasion and migration of BxPC-3.Conclusions UCA1 is over-expressed in pancreatic cancer , and down-regulation of UCA1 attenuates the capacity of invasion and metastasis in vitro of BxPC-3 by decreasing MMP-2 and MMP-9.
8.Long-term Efficiency of Percutaneous Transluminal Septal Myocardial Ablation for Treating the Patients With Hypertrophic Obstructive Cardiomyopathy
Liwen LIU ; Xingxing LI ; Ruoxi GU ; Xiaozeng WANG ; Quanmin JING ; Geng WANG ; Xin ZHAO ; Yaling HAN
Chinese Circulation Journal 2015;(8):757-761
Objective: To evaluate the long-term efifciency of percutaneous transluminal septal myocardial ablation (PTSMA) for treating the patients with hypertrophic obstructive cardiomyopathy (HOCM).
Methods: A total of 66/94 (70.2%) HOCM patients received PTSMA in Shenyang PLA general hospital from 2001-10 to 2012-10 were retrospectively studied. The left ventricular out lfow gradient (LVOFG) was measured at before and after the operation, ECG and echocardiography were examined at 1 month, 6 months and 1 year after operation, and then examined once per year for (63.8±28.5) months.
Results: There were 26 patients lost contact during follow-up period, 40 returned to routine clinical check-up and 2 patients died thereafter, 1 because of sudden death and 1 because of cerebral bleeding. The pre-operative average LVOTG was (102.7 ± 47.5) mmHg, compared with the values at 6 months post-operation and long term (>6 months) after operation (33.9 ± 30.2) mmHg and (29.7 ± 25.4) mmHg,P<0.001. The pre-operative average inter ventricular septal (IVS) was (20.1 ± 3.6) mm, compared with the values at 6 months post-operation and long term after operation (17.5 ± 2.9) mm and (16.4 ± 3.6) mm, P=0.028 andP<0.001. There were 7 patients with NYHA class at II-III and having occasional chest suppression and short of breath. There were no heart transplantation, frequent premature ventricular contraction, tachycardia and other malignant arrhythmia occurred in 38 survivors.
Conclusion: PTSMA may reduce LVOTG, IVS thickness and improve the clinical symptoms in HOCM patients, the long-term efifcacy is reliable.
9.The 18F-fluorodeoxyglucose positron emission tomograhy in predicting residual retro-peritoneal tumor after chemotherapy of testis germ cell tumors
Shuo WANG ; Peng DU ; Xingxing TANG ; Chao AN ; Qiang ZHAO ; Ning ZHANG ; Yong YANG
Chinese Journal of Clinical Oncology 2017;44(12):608-611
Objective:To determine the value of 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) scans in identify-ing the residual retroperitoneal tumor after chemotherapy of testis germ cell tumors. Methods:Sixteen testis germ cell tumor patients with metastasis of retroperitoneal lymph nodes who were treated in our hospital from February 2014 to December 2016 were select-ed for the study from February 2014 to December 2016. After 4-6 cycles of chemotherapy, their CT scans showed residual masses with diameters greater than 2 cm. The retroperitoneal lymph nodes were dissected after the 18F-FDG PET exam. The post-surgery pathology results were compared with the results of the 18F-FDG PET exam. Results:Residual tumors were found in 5 of 10 patients with 18F-FDG PET positive. Residual tumor was absent in 4 of 6 patients with 18F-FDG PET negative, while residual mature teratoma tumors were found in two patients. The accuracy rate, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of the 18F-FDG PET exam were 56.25%(9/16), 71.42%(5/7), 44.44%(4/9), 50.00%(5/10), and 66.67%(4/6), respectively. Conclusion: 18F-FDG PET is highly sensitive. However, many factors influence the result of 18F-FDG PET. Mature teratoma leads to a false negative re-sult, whereas massive tissue inflammation leads to a false positive result. Therefore, more clinical examinations should be made.
10.Long-term toxicity to respiratory system of rats by low-dose perfluoroisobutylene exposure once and possible beneficial effect of early intervention via Qingkailing injection
Fang LIU ; Dongquan ZHANG ; Xingxing XU ; Chunping ZOU ; Zuliang HU ; Yuezhen LIU ; Jian ZHAO ; Rigao DING
Chinese Journal of Pharmacology and Toxicology 2016;30(5):517-525
OBJECTIVE To clarify the long-term toxicity to the respiratory system in a rat model of acute lung injury (ALI) induced by a single low-dose of perfluoroisobutylene(PFIB) inhalation expo?sure,and observe the possible beneficial effect of early intervention via Qingkailing(QKL) injection. METHODS Totally 224 male Wistar rats were randomly divided into 4 groups:normal control group in which air exposure was followed by a saline 10 mL · kg-1(ip),QKL control group in which QKL 10 mL · kg-1 was ip given after air exposure,PFIB exposure group in which rats were exposed to PFIB 280 mg·m-3 for 5 min only,and QKL treatment group in which QKL 10 mL·kg-1 was given ip at 1 h after PFIB exposure. Lung functions of rats were measured at 24 h,3,6,12,24,36 and 48 weeks after exposure. The arterial blood gas,lung coefficient,protein content in bronchoalveolar lavage fluid(BALF),hydroxy?proline(HYP) content in lung tissue and plasma,and other indicators were detected or analyzed. RESULTS Within 24 h after PFIB exposure,the lung coefficient and protein content in BALF were increased significantly(P<0.01),whereas the PaO2(P<0.01) and SaO2(P<0.05) indices in arterial blood decreased significantly in PFIB group compared with normal control. The inhalation time , exhalation time,tidal volume(TV),expired volume(EV)and relaxed time were reduced significantly (P<0.01). However,all the above indicators returned to normal in 3 weeks,but TV,EV and peak expiratory flow were significantly lower than in normal group at 48 weeks(P<0.05). HYP contents in lung tissues,compared with normal control(P<0.05),were reduced significantly within 24 h after PFIB exposure,increased significantly in 6 weeks(P<0.05),then returned to normal in 12 weeks. HYP contents in plasma increased significantly compared with normal control(P<0.05) within 24 h after PFIB exposure but returned to normal in 3 weeks. The protein contents in BALF of QKL treatment group were significantly lower than those in PFIB group(P<0.01) within 24 h after PFIB exposure. From 24 h to 24 weeks after PFIB exposure,changes of pulmonary functions were similar to those in PFIB group. At 48 weeks,TV and EV in QKL treatment group were more significantly increased than those in PFIB group(P<0.05). CONCLUSION Rats with ALI induced by a single low dose of PFIB exposure undergo compensatory repair except for pulmonary capacity and pulmonary ventilation functions. Early treatment with QKL reduces protein content of BALF and alleviates pulmonary edema,and has some beneficial effect on lung function recovery later.