1.Significance of EGFR, Her-2 and VEGF expressions in cervical intraepithelial neoplasia and squamous cell carcinoma
Li GENG ; Yu DENG ; Zhongqiu WANG
Cancer Research and Clinic 2013;25(11):750-753
Objective To investigate the expressions of EGFR,Her-2 and VEGF in cervical intraepithelial neoplasia (CIN) and cervical squamous cell carcinoma,as well as its clinic value of carcinogenesis,progression and metastasis in ccrvical squamous cell carcinoma.Methods EGFR,Her-2 and VEGF were evaluated by immunohistochemistry in tissues from normal cervix,CIN and squamous cell carcinoma.Results The expressions of EGFR,Her-2 and VEGF were negative in normal cervix.The positive rate of EGFR,Her-2 and VEGF in CIN tissues were 35.0 % (14/40),37.5 % (15/40),42.5 % (17/40),while in cervical carcinoma tissues were 70.0 % (35/50),78.0 % (39/50),76.0 % (38/50) respectively,which had statistical significance.There was relationship between the expressions of EGFR,Her-2,VEGF proteins with pathological grade andlymph node metastasis of squamous cell carcinoma.The expressions of Her-2 and VEGF correlated with the clinical stage of quamous cell carcinoma.Conclusion The expressions of EGFR,Her-2 and VEGF may be correlated with the occurrence,development and metastasis of cervical carcinoma.It may be used as an important marker to evaluate the malignant degree of cervical carcinoma and it can be helpful in the treatment of cervical carcinoma.
2.Effect of all-trans retinoic acid combined with trichostatin A on the nude mice bearing human follicular thyroid carcinoma
Chinese Journal of Nuclear Medicine 2011;31(6):373-377
ObjectiveTo study the changes of iodine uptake of the follicular thyroid carcinoma cell line (FTC-133) and nude mice bearing human follicular thyroid carcinoma after the induction with alltrans retinoic acid (ATRA),trichostatin A (TSA) or ATRA combined with TSA.MethodsAfter the induction with ATRA,TSA,or ATRA combined with TSA in different concentrations for 96 h,the iodine uptake of FTC-133 cells was observed.The concentrations for different groups were as follows:ATRA 1.0 ×10-6 mol/L(Alow group),ATRA 1.0 × 10-4 mol/L(Ahigh group),TSA 1.65 ×10-7 mol/L(T group),Alow +T group,Ahigh +T group and ethanol (control group).Cell quantities and morphology were observed by HE staining.FTC-133 cells were subcutaneously injected into nude mice.Twelve nude mice were randomly divided into 4 groups after tumor formation:ATRA group (2 mg/kg,intragastric administration),TSA group (10 mg/kg,intraperitoneal injection),combined therapy group (ATRA + TSA,the same doses as above) and saline control group (10 ml/kg,intragastric and intraperitoneal administration,respectively).Drugs were administered to the tumor-bearing mice according to the mouse body mass daily.At the 22nd day,the tumor-bearing mice were injected with 37 MBq 131I intraperitoneally.The biodistribution of 131I and gamma imaging were performed at 4,6,12 and 24 h after the injection respectively.Histopathological examinations of the tumor samples were taken after imaging completion.The results were analyzed by analysis of variance (ANOVA) with SPSS 13.0.ResultsThe cellular iodine uptake were (23 885 ± 616.0 ) and ( 13 849 ±728.2) counts · min-1 · 10-6 cells in the Alow + T group and Ahigh + T group respectively,and the data were (985 ± 84.2) - ( 17 600 ± 782.7 ) counts · min-1 · 10-6 in the other groups ( F =600.879,P <0.001 ).The % ID/g of tumor at 6 h was 6.17 ±0.46 in the combined group and it increased to 9.34 ±0.61 at 12 h and 11.19 ± 0.98 at 24 h.The % ID/g of tumor in the other groups were from ( 1.97 ± 0.34)to (5.14 ± 0.65 ).The tumor qualities of the 4 groups were significantly different ( F =3.723,P < 0.05 ).ConclusionThe iodine uptake of the tumor could be enhanced in the tumor-bearing mice administered with ATRA combined with TSA,a potential way for treating follicular thyroid carcinoma.
4.Studies on sLe~(a/x) and Hematogenous Metastasis of Cancer
Yun-Li PENG ; Jing LI ; Mei-Yu GENG ;
China Biotechnology 2006;0(06):-
The expression of sLea/x which correlates with conventional histopathologic parameters serves as a useful indicator for the prognosis of metastatic disease. The bindings between sLea/x and their common ligand E-selectin initiate hematogenous metastasis of cancer. Certain bioactive conformation is crucial for the interaction between sLea/x and their ligands. Thus, a new class of compounds that mimic the structures of sLea/x can potently inhibit not only their functional bindings to selectins, but also the metastasis of cancer. This review is mainly on the sLea/x molecular structure,biosynthesis,distribution, especially the relationship between sLea/x and hematogenous metastasis of cancer and the design of drugs that mimic the structures of sLea/x.
5.Clinical value of 64-row CT angiography in detection of carotid atherosclerotic plaque
Xiaoyan YU ; Weijun TANG ; Ruijiang ZHU ; Haoxiong LI ; Daoying GENG
Chinese Journal of General Practitioners 2009;8(11):792-795
Objective To explore clinical significance of muhidetector(64-row)computed tomography carotid atherosclerosis angiography(MDCTA)in detecting carotid atherosclerotic plaque.Methods Data of 116 patients with carotid atherosclerosis undergone with MDCTA stayed at Huashan Hospital,Shanghai from January to August,2008 were analyzed retrospectively.Results Three hundred and seventy-seven plaques were identified among all the 116 patients in the study,with an incidence of calcified plaque of 63.40 percent,and more detected at the common carotid artery(27.85%).the carotid bifurcation(39.78%)and the internal carotid artery (21.48%).There was significantly statistical difference in plaque types between those with mild,moderate and severe carotid stenosis(P=0.000)and between those aged equal to or lower than 50 years and equal to or greater than 70 years(P=0.005).Plaque types at the common carotid artery were significantly difierent from those at the carotid bifurcation(P=0.000)and at the internal carotid artery(P=0.000).Results of regression analysis showed a positive and significant association between carotid occlusion and clinical symptomatology(with a coefficient of correlation of 1.080.P=0.023)and inverse association between calcified plaque and clinical symptomatology(with a coefficient of correlation of 0.688,P=0.006).Conclusions Not only imaging characteristics of carotid atherosclerotic plaque can be accurately assessed by MDCTA,but also measurement of its stenosis degree.Assessment of plaque type,degree of stenosis and distribution of plaque in different Vascular segments with MDCTA can be used to predict clinical occurrence of cerebevaseular events in patients with carotid atherosclerosis.
7.Observation on the Influence of Valsartan Combined with Bailing Capsules on Urinary Albumin Excretion Rate in Early Stage of Type 2 Diabetic Nephropathy
Li WU ; Dajun YAN ; Shijuan JING ; Jianmin YU ; Jilu GENG
China Pharmacist 2014;(9):1532-1533,1534
Objective:To observe the influence of valsartan combined with Bailing capsules on urinary albumin excretion rate in early stage of type 2 diabetic nephropathy ( DN) , and explore its protection in early DN. Methods:Sixty patients with early DN were randomly divided into two groups. On the basis of diet control and blood glucose regulation, the control group (n=30) was given valsartan 160 mg, qd, while the prevention group (n=30) was treated by valsartan (160 mg·d-1) combined with Bailing capsules (2. 0g, po, tid), and the treatment course was 12 weeks. The urinary albumin excretion rate ( UAER) , mean arterial blood pressure ( MAP) , serum creat-inine ( Scr) and hemoglobin A1c ( HbA1c) were measured and compared before and after the treatment in the two groups. Results:UAER in the two groups was significantly reduced after the treatment compared with that before the treatment (P<0. 01), and that in the prevention group was obviously lower than that in the control group (P<0. 01). MAP in the two groups was significantly decreased after the treatment as well (P<0. 01), while there was no significant difference between the two groups. Scr and Hb Alc in the two groups showed no significant changes before and after the treatment (P>0. 05). Conclusion:Valsartan combined with Bailing capsules shows certain effects in the treatment of early stage of type 2 diabetic nephropathy by decreasing the urinary albumin excretion.
8.Effect of continuous blood purification in the treatment of cardiorenal syndrome type Ⅰ
Yuanchao ZHANG ; Li YU ; Feng GENG ; Jing HU ; Shichong LIAO
Chinese Journal of Geriatrics 2015;34(7):771-773
Objective To evaluate the effect of continuous blood purification (CBP) on cardiorenal syndrome (CRS) type Ⅰ.Methods Clinical data of 42 patients with CRS type [at our hospital were collected from January 2012 to June 2014.We observed and compared changes in mean arterial pressure (MAP),heart rate,respiration rate,acute physiology and chronic health evaluation (APACHE) Ⅱ score,and urinary volume before and 5 days after CBP.Meanwhile,levels of serum creatinine (Scr),cysteine proteinase inhibitor Cystatin C (CysC),serum creatinine (cTn) and B-type natriuretic peptid (BNP) were monitored.In addition,dynamic changes in cardiac index (CI),intrathoracic blood volume index (ITBI),global end-diastolic volume index (GEDI),central venous pressure (CVP),and extravascular lung water index (ELVWI) were monitored using the pulse induced contour cardic output plus monitoring system (PiCCO plus),and changes in left ventricular ejection fraction (LVEF) before and 5 days after CBP was measured by color Doppler ultrasound.Results There was no significant difference in MAP in patients with CRS type Ⅰ before and 5 days after CBP (P=0.08).Tacbycardia and tachypnea improved,while urine volume increased and the APACHE Ⅱ score decreased significantly,5 days after CBP(allP<0.05).Plasma levels of Scr,CysC,cTn and BNP after treatment were lower than those before treatment [(126.8±68.3) μmol/L vs.(413.6±126.1) μmol/L,(1.1±0.8) g/L vs.(4.1±1.1) g/L,(2.6±0.4) μg/L vs.(3.5± 0.7) μg/L,(807.6±427.7) ng/L vs.(3300.3±567.6) ng/L,all P<0.05)].Myocardial contractility,cardiac preload and lung related parameters also significantly improved after CBP (allP <0.05).Conclusions CBP can alleviate clinical symptoms of CRS type Ⅰ,improve cardiac and renal function,and is promising as an important auxiliary measure for the treatment of patients with cardiorenal syndrome type Ⅰ.
9.Advances in AEG-1 mediated drug resistance
Kexin CHEN ; Chen LI ; Yu QIN ; Guodong YAO ; Jingshu GENG
Practical Oncology Journal 2014;(5):447-450
It has been demonstrated that astrocyte elevated gene 1 ( AEG-1 ) can promote tumor initia-tion and progression .Over expression of AEG -1 is correlated with tumor angiogenesis ,metastasis and chemother-apy resistance of tumor cells of different origins .The present article is a review on the mechanism of AEG -1 me-diated drug resistance .Studies have shown that AEG -1 participates in carcinogenesis through Ha -ras,myc,NF-κB and PI3K/Akt signalling pathways .AEG-1 can also promote autophagy through activating AMP Kinase . Other researchers demonstrate that AEG -1 promotes MDR1 protein translation by up-regulating MDR1 mRNA expression ,and thus increases polyribosome .It is testified that AEG-1 can influence drug susceptibility and ex-pression of MDR gene as a RNA binding protein .Multiple functions of AEG -1 in drug resistance in multiple cancers demonstrate that AEG -1 can be used as a novel target for antitumor drugs .
10.Effect of hemoperfusion plus hemofiltration in patients with hyperlipidemic pancreatitis
Yuanchao ZHANG ; Li YU ; Feng GENG ; Wei LIU
Chinese Journal of Hepatobiliary Surgery 2014;20(4):274-276
Objective To evaluate the effect of different blood purification modes on patients with hyperlipidemic pancreatitis (HLP).Methods 28 patients with HLP in our department were enrolled into this study from January 2010 to June 2013.The patients were randomly divided into the HP/CVVH group (15 patients) and CVVH group (13 patients).The clinical symptoms and signs of the two groups were observed.The plasma levels of TNF-α,IL-6,IL-8,blood triglyceride and APACHE Ⅱ score before and after treatment were compared between the two groups.The duration of mechanical ventilation,ICU stay and mortality rate were compared between the two groups.Results The clinical symptoms improved in the two groups after treatment.The plasma levels of TNF-α,IL-6,IL-8,blood triglyceride and APACHE Ⅱ score were all reduced.However,the plasma levels of TNF-o,IL-6,IL-8,blood triglyceride and APACHE Ⅱ score in the HP/CVVH group were lower than the CVVH group at the same time points,showing significant differences (P < 0.05).The duration of mechanical ventilation,ICU stay and mortality rate decreased in the HP/CVVH group (P < 0.05).Conclusions HP/CVVH was more efficacious in the treatment of HLP.