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Neural invasion in pancreatic carcinoma

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Hepatobiliary & Pancreatic Diseases International 2002年第3期1卷 469-476页

作者： Bin Liu Kui-Yang Lu the department of General Surgery, the affiliated hospital of xuzhou medical college, xuzhou 221002, China department of General Surgery the Affiliated Hospital of Xuzhou Medical College Xuzhou 221002 China. liubinxy@***

Background: Neural invasion is a special metastatic route in pancreatic cancer and responsible for the high recurrence in curatively resected cases. Objective: To summarize the characteristics and mechanisms of neural invasion in pancreatic carcino- ma for the better treatment of this disease. Data sources: The international literatures were re- viewed about the definition, incidence and mecha- nisms of neural invasion and its clinicopathology, di- agnosis and treatment. Data synthesis: Neural invasion is defined when the medial perineurium is involved by cancer cells, ac- counting for 45 %--100 % of all cases. It can be divid- ed into different kinds or stages according to its loca- tions and the number of nerve fascicles involved. In- vasion along vascularity, lymphatic vessels, perineu- ral space and neurotropism is considered as its pri- mary mechanisms. No clinicopathologic factors are correlated with neural invasion. Intravascular ultra- sound, CT scan and immunostaining K-ras gene a- nalysis can be used to diagnose neural invasion pre-, intra- or postoperatively. Conclusion: Neural invasion is an important prognos- tic factor for the recurrence of pancreatic carcinoma after pancreatectomy. Because of its high incidence, pancreatectomy with extended radical retroperitoneal dissection should be considered as a basic procedure in the treatment of pancreatic carcinoma.

关键词： pancreatic neoplasm perineural invasion mechanism prognosis treatment

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Activation of ERK/CREB pathway in spinal cord contributes to chronic constrictive injury-induced neuropathic pain in rats

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Acta Pharmacologica Sinica 2005年第7期26卷 789-798页

作者： Xue-song SONG~2 Jun-li CAO~(3.4,5) Yan-bing XU~3.Jian-hua HE~3.Li-cai ZHANG~3.Yin-ming ZENG~(3.4)2 department of anesthesiology,First Clinical college of N.Bethune Centre of Health Sciences,Jilin University,Changchun 13.021,China {3.,affiliated hospital of xuzhou medical college,xuzhou 221002,China 4 Jiangsu Institute of anesthesiology,xuzhou 221002,China departmentofanesthesiology FirstClinicalCollegeofN.BethuneCentreofHealthSciencesJilinUniversityChangchun130021China

Aim:To investigate whether activation and translocation of extracellular signal-regulated kinase(ERK)is involved in the induction and maintenance of neuro-pathic pain,and effects of activation and translocation of ERK on expression ofpCREB and Fos in the chronic neuropathic ***:Lumbar intrathecalcatheters were chronically implanted in male Sprague-Dawley *** left sciaticnerve was loosely ligated proximal to the sciatica's trifurcation at approximately 1.0mm intervals with 4-0 silk *** mitogen-activated protein kinase kinase(MEK)inhibitor U0126 or phosphorothioate-modified antisense oligonucleotides(ODN)were intrathecally administered every 12 h,1 d pre-chronic constrictioninjury(CCI)and 3.d *** and mechanical nociceptive thresholdswere assessed with the paw withdrawal latency(PWL)to radiant heat and vonFrey *** expression of pERK,pCREB,and Fos were assessed by bothWestern blotting and immunohistochemical ***:Intrathecal injec-tion of U0126 or ERK antisense ODN significantly attenuated CCI-induced me-chanical allodynia and thermal *** significantly increased the ex-pression of p-ERK-IR neurons in the ipsilateral spinal dorsal horn to injury,not inthe contralateral spinal dorsal *** time courses of pERK expression showedthat the levels of both cytosol and nuclear pERK,but not total ERK,were in-creased at all points after CCI and reached a peak level on postoperative d *** significantly increased the expression of pCREB and ***-CREB-positive neurons were distributed in all laminae of the bilateral spinal cord and Foswas expressed in laminae I and II of the ipsilateral spinal dorsal *** of U0126 or ERK antisense ODN markedly suppressed the increase ofCCI-induced pERK,pCREB and c-Fos expression in the spinal ***:The activation of ERK pathways contributes to neuropathic pain in CCI rats,andthe function of pERK may partly be accomplished via the cAMP

关键词： extracellular signal-regulated kinases cyclic AMP-response DNA-binding protein pain hyperalgesia spinal cord

GABAA receptor partially mediated propofol-induced hyperalgesia at superspinal level and analgesia at spinal cord level in rats

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Acta Pharmacologica Sinica 2004年第12期25卷 53-59页

作者： Qin-yun WANG2,3. Jun-li CAO2, Yin-ming ZENG2, Ti-jun DAI2,4 2Jiangsu Institute of anesthesiology, Jiangsu Province Key Laboratory of anesthesiology, xuzhou, {3., China 3.4} of anesthesiology, the1st affiliated hospitalof Soochow University, Suzhou 215006, China Jiangsu Institute of anesthesiology Jiangsu Province Key Laboratory of Anesthesiology department of anesthesiology the 1st Affiliated Hospital of Soochow University

AIM: To observe effects of propofol on nociceptive response at superspinal and spinal level in rats. METHODS: Two hundreds and fifty-eight Sprague-Dawley male rats were randomized into thirty-two groups. Propofol and bicuculline were microinjected into lateral ventricle (icv), ventrolateral periaqueductal gray (vlPAG), intrathecal (ith), and intraperitoneal (ip). The noxious responses were evaluated by hot plate and formalin test. RESULTS: In hot-plate test, systemic and superspinal administration of propofol (40 mg·kg-1 ip, 100 μg in 10 μL, icv, and 4 μg in 0.4 μL vlPAG microinjection) produced hyperalgesia (P3. min by microinjection of bicuculline (10 ng in 0.4 μL, vlPAG) (P3.%, 54.8 %, 80.8 %, and 97.4 % at 10, 20, 3. and 40 min by ith bicuculline (P3. min by ith bicuculline (P<0.05) after formalin injection. Hyperalgesia produced by ip propofol in both hot plate and formalin test could not be antagonized by vlPAG administration of bicuculline. CONCLUSION: GABAA receptor partly mediated propofol-induced hyperalgesia at superspinal and analgesia at spinal cord in rats.

关键词： GABA receptors propofol pain ventrolateral periaqueductal gray spinal cord

Effect of puerarin on myocardial perfusion and ventricular wall motion in patients with acute coronary syndrome

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Journal of Geriatric Cardiology 2008年第3期5卷 155-158页

作者： Ling Niu Dongye Li Yong Xia Defeng Pan Xiaoping Wang Yan Yan Li Liang Tongda Xu Cardiovascular Institute of xuzhou medical college, {3. of Cardiology, affiliated hospital, xuzhou medical college, xuzhou, Jiangsu 221002, China Cardiovascular Institute of xuzhou medical college Department of Cardiology Xuzhou Medical College Xuzhou Jiangsu 221002 China

Objective To investigate the effects of puerarin (Pur) on myocardial perfusion and ventricular wall motion in patients with acute coronary syndrome (ACS).Methods Thirty-seven patients with ACS were randomly divided into two groups:conventional treatment group (n= 17,11 males,range of age:3.-80 years,average age:60.9±4.9 years) and Pur treatment group (n=20,12 males,range of age:40-76 years,average age:62.7±3.5 years).Patients in the conventional treatment group received standard treatment according to the current guidelines,while patients in the Pur treatment group received intravenous administration of Pur (500 mg/day) for 10 days plus conventional ***-time myocardial contrast echocardiography (RT-MCE) was performed to evaluate the change in myocardial perfusion index (MPI) and ventricular wall motion index (VWMI) at admission and 10 days after *** At 10 days after treatment,MPI was significantly higher (P<0.01) and VWMI significantly lower (P<0.01) in the Pur group comparing with those in the conventional *** Puerarin might improve myocardial microcirculation perfusion and ventricular wall motion in patients with ACS.

关键词： acute coronary syndrome myocardial perfusion index ventricular wall motion index puerarin

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Effects of allicin on both telomerase activity and apoptosis in gastric cancer SGC-7901 cells

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World Journal of Gastroenterology 2003年第9期9卷 1930-1934页

作者： Li Sun Xu Wang department of Oncology,affiliated hospital of xuzhou medical college,xuzhou 221002,Jiangsu Province,China department of Oncology Affiliated Hospital of Xuzhou Medical College Xuzhou 221002 Jiangsu Province China.

AIM: To investigate the effects of allicin on both telomeraseactivity and apoptosis in gastric cancer SGC-7901 ***: The gastric cancer SGC-7901 adenocarcinomacells were treated with allicin and the cell cycle, inhibitoryrate, apoptosis, telomerase activity and morphologic changeswere studied by MTT assay, flow cytometry (FCM), TRAP-PCR-ELISA assay, light microscope, electron microscoperespectively. Results were compared with that of AZT (3.-Azido-3.-deoxythymidine).RESULTS: SGC-7901 cells were suppressed after exposureto allicin of 0.016 mg/ml, 0.05 mg/ml, and 0.1 mg/mi for48 h. Compared with the control, the difference wassignificant (P＜0.05). Allicin could induce apoptosis of thecells in a dose-dependent and non-linear manner andincrease the proportion of cells in the G2/M phase. Comparedwith the control, the difference was significant in terms ofthe percentage of cells in the G2/M phase (P＜0.05). Allicincould inhibit telomerase activity in a time-dependent anddose-dependent pattern. After exposure to allicin at 0.016mg/ml for 24 hours, SGC-7901 cells showed typicalmorphologic ***: Allicin can inhibit telomerase activity andinduce apoptosis of gastric cancer SGC-7901 cells. Allicinmay be more effective than AZT.

关键词：胃癌 SGC-7901细胞大蒜素端粒酶细胞凋亡

Ginkgo biloba extract suppresses hypertrophy and extracellular matrix accumulation in rat mesangial cells

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Acta Pharmacologica Sinica 2006年第9期27卷 1222-1230页

作者： Jian-yun WANG~2 Xiao-xing YIN~(2,6)Yun-ming WU~2 Dao-quan TANG~2 Yuan-yuan GAO~2 Mei-rong WAN~4 Xiao-yu HOU~3.Bei ZHANG~5 2 department of Pharmacy,3.Provincial Key Lab for Brain Diseases Bioinformation,xuzhou medical {3.,xuzhou 221002,China 4 Center-Laboratory,affiliated hospital of xuzhou medical college,xuzhou 221002,China 5 department of Obstetrics and Gynecology,The Third People's hospital of xuzhou,xuzhou 221002,China departmentofPharmacy ProvincialKeyLabforBrainDiseasesBioinformation XuzhouMedicalCollegeXuzhou221002China Center-Laboratory AffiliatedHospitalofXuzhouMedicalCollegeXuzhou221002China

Aim:To observe the effects of Ginkgo biloba extract（EGb）on the hypertrophy ofmesangial cells and the accumulation of extracellular matrix（ECM）in ***:Cultured mesangial cells were allotted into 7 groups:normal group,solvent control group,high glucose group,low dose of EGb group,moderatedose of EGb group,high dose of EGb group,and captopril *** of cellantioxidases,S phase percentage and G0/G1phase percentage,collagen Ⅳ andlaminin,Smad2/3.and Smad7,TGF-β1mRNA were measured by different ***:For EGb-treated groups,when compared with high glucose group,thecell percentage of S phase was raised and the percentage of G0/G1was *** intensity of oxidative stress was *** expression of Smad2/3.wasgreatly decreased and Smad7 was *** Ⅳ,laminin and TGF-β1mRNA were also ***:EGb can suppress cell hypertrophy andthe accumulation of ECM in rat mesangial cells,which means it could play a vitalrole in the delay of glomerulosclerosis in diabetic nephropathy.

关键词： ginkgo biloba extract glomerulosclerosis oxidative stress TGF-β1 Smads

Inhibition of Proliferation and Induction of Apoptosis in Human Renal Carcinoma Cells by Anti-telomerase Small Interfering RNAs

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Acta Biochimica et Biophysica Sinica 2006年第7期38卷 500-506页

作者： Jun-Nian ZHENG~(1,3.*)Ya-Feng SUN~(2#)Dong-Sheng PEI~2 Jun-Jie LIU~1 Jia-Cun CHEN~1 Wang LI~1 Xiao-Qing SUN~1 Qi-Duo SHI~3.Rui-Fa HAN~3.Teng-Xiang MA~3. 1 Laboratory of Urology,affiliated hospital of xuzhou medical college,xuzhou 221002,China 2 Research Center for Biochemistry and Molecular Biology,xuzhou {3. college,xuzhou 221002,China 3.Institute of Urology,Tianjin {3. University,Tianjin 3.0070,China LaboratoryofUrology AffiliatedHospitalofXuzhouMedicalCollegeXuzhou221002China ResearchCenterforBiochemist'ryandMolecularBiology XuzhouMedicalCollegeXuzhou221002China

Telomerase is an attractive molecular target for cancer therapy because it is present in mostmalignant cells but is undetectable in most normal somatic *** telomerase consists of two subunits,an RNA component(hTR)and a human telomerase reverse transcriptase component(hTERT).Smallinterfering RNA(siRNA),one kind of RNA interferences,has been demonstrated to be an effective methodto inhibit target gene expression in human *** investigated the effects of siRNA targeting at both hTRand hTERT mRNA on the inhibition of telomerase activity in human renal carcinoma cells(HRCCs).Theproliferation and apoptosis of HRCCs were *** treatment of HRCCs using hTR and hTERTsiRNAs resulted in significant decrease of hTR mRNA,hTERT mRNA and hTERT *** siRNA canalso inhibit the telomerase activity and the proliferation of ***,they can induce apoptotic celldeath in a dose-dependent *** these findings,we propose that the inhibition of telomerase activityusing siRNA targeting hTR and hTERT might be a rational approach in renal cancer therapy.

关键词： hTERT hTR telomerase siRNA renal cell carcinoma proliferation apoptosis

Treatment with Vector-expressed Small Hairpin RNAs against Ki67 RNA-induced Cell Growth Inhibition and Apoptosis in Human Renal Carcinoma Cells

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Acta Biochimica et Biophysica Sinica 2006年第4期38卷 254-261页

作者： Jun-Nian ZHENG~(1,3.) Ya-Feng SUN~(2#) Dong-Sheng PEI~2 Jun-Jie LIU~1 Teng-Xiang MA~3.Rui-Fa HAN~3.Wang LI~1 Dian-Bao ZHENG~1 Jia-Cun CHEN~1 Xiao-Qing SUN~1 1 Laboratory of Urology,affiliated hospital of xuzhou medical college,xuzhou 221002,China 2 Research Center for Biochemistry and Molecular Biology,xuzhou {3. college,xuzhou 221002,China 3.Institute of Urology,{3. University of Tianjin,Tianjin 3.0211,China LaboratoryofUrology AffiliatedHospitalofXuzhouMedicalCollegeXuzhou221002China ResearchCenterforBiochemistryandMolecularBiology XuzhouMedicalCollegeXuzhou221002China InstituteofUrology MedicalUniversityofTianjin

Short hairpin RNAs (shRNAs) transcribed *** polymerase Ⅲ promoters can triggersequence-selective gene silencing in mammalian *** virtue of their excellent function in knocking downexpression of cancer-associated genes,shRNAs could be used as new therapeutic agents for *** of Ki67 in renal cancer has been correlated to a more aggressive tumor phenotype,inhibitionof Ki67 protein expression by means of shRNAs seems to be a promising approach for the therapy of *** this study,we constructed an expression plasmid encoding shRNAs against the Ki67 gene,namedpSilencerKi67,and transfected it into human renal carcinoma *** pSilencerKi67 was shown to signifi-cantly knock down the expression of the Ki67 gene in human renal carcinoma cells,resulting in inhibitingproliferation and inducing apoptotic cell death that can be maintained for at least *** findings offer thepromise of using vector-based shRNAs against Ki67 in renal cancer gene therapy.

关键词： Ki67 gene shRNAs renal cell carcinoma proliferation apoptosis

Intrathecal administration of Cav3.2 and Cav3.3.antisense oligonucleotide reverses tactile allodynia and thermal hyperalgesia in rats following chronic compression of dorsal root of ganglion

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Acta Pharmacologica Sinica 2006年第12期27卷 1547-1552页

作者： Xian-jie WEN~(1,2)Zhang-jun LI~2 Zhi-xin CHEN~2 Zhi-yuan FANG~3.Chen-xiang YANG~1 Heng LI~1 Yin-ming ZENG~(2,4)1 department of anesthesiology,the First People's hospital of FoShan & {3. FoShan hospital of Sun-Yat Sen University,Foshan 528000,China 2 Jiangsu Province Institute of anesthesiology,xuzhou medical college,xuzhou 221002,China 3.department of anesthesiology,the Municipal hospital of Suzhou,Suzhou 215002,China 1department of anesthesiology the First People s Hospital of FoShan &#38 affiliated FoShan hospital of Sun-Yat Sen University Foshan 528000 China 2Jiangsu Province Institute of Anesthesiology Xuzhou Medical College Xuzhou 221002 China 2Jiangsu Province Institute of anesthesiology Xuzhou Medical College Xuzhou 221002 China 2Jiangsu Province Institute of anesthesiology Xuzhou Medical College Xuzhou 221002 China 3.0} of anesthesiology the Municipal Hospital of Suzhou Suzhou 215002 China 1department of anesthesiology the First People s Hospital of FoShan &#38 affiliated FoShan hospital of Sun-Yat Sen University Foshan 528000 China 1department of anesthesiology the First People s Hospital of FoShan &#38 affiliated FoShan hospital of Sun-Yat Sen University Foshan 528000 China 2Jiangsu Province Institute of anesthesiology Xuzhou Medical College Xuzhou 221002 China

Aim:The present study aimed to elucidate the role of T-subtype calcium channels（Cav3.1,Cav3.2,and Cav3.3.in the pathogenesis of neuropathic pain at spinal ***:The chronic compression of the dorsal root ganglion（CCD）rat modelwas *** antisense oligonucleotide of Cav3.1,Cav3.2,and Cav3.3.or nor-mal saline（NS）were intrathecally administered twice per day from the first day tothe fourth day after *** mechanical withdrawal threshold and pawthermal withdrawal latency were measured to evaluate the tactile allodynia andthermal hyperalgesia,***:CCD rats developed reliable tactileallodynia and thermal hyperalgesia after *** administration ofantisense oligonucleotide of Cav3.2 and Cav3.3.significantly relieved tactileallodynia and thermal hyperalgesia in CCD rats,but not ***:Cav3.2and Cav3.3.subtype calcium channels in the spinal cord may play an important rolein the pathogenesis of neuropathic pain,which may contribute to the manage-ment of the neuropathic pain.

关键词： T-type calcium channels neuropathic pain spinal cord antisense oligonucleotide