1.Study on the correlation between electrocardiogram and serum enzyme and electrolyte in patients with primary liver cancer
Lixia ZHANG ; Shuanghua PAN ; Yingping HE
Practical Oncology Journal 2016;30(6):523-526
Objective To investigate the relationship between electrocardiogram and serum alanine ami-notransferase and electrolytes in patients with primary liver cancer .Methods Clinical data of 241 patients with primary liver cancer treated in our hospital were retrospectively studied .Single factor analysis was used to analyze the risk factors of abnormal electrocardiogram in patients with primary liver cancer .The multivariate logistic re-gression analysis was performed to analyze the factors that were statistically significant .Results Single factor a-nalysis showed that age,gamma glutamyl transferase(GGT),electrolyte is associated with ECG abnormalities in the patients with primary hepatocellular carcinoma (P<0.05).Multivariate logistic regression analysis showed that,the GGT and electrolyte anomaly led to primary hepatocellular carcinoma in the patients with abnormal ECG independent risk factors .Conclusion The level of electrolyte ,age≥60 and GGT anomaly and primary electro-cardiogram in patients with hepatocellular carcinoma ( HCC ) is a close relationship for active hepatoprotective , maintain electrolyte balance therapeutic intervention for patients with hepatocellular carcinoma ( HCC) .
2.The role and mechanisms ofω-3 polyunsaturated fatty acids in inducing cell apoptosis and anti-prolif-eration in multiple myeloma
Yu ZHAO ; Xiaoting ZHU ; Yinan WANG
Practical Oncology Journal 2016;30(6):516-522
Objective To explore the role and mechanisms of ω-3 polyunsaturated fatty acids (ω-3PUFA) alone or in combination with dexamethasone ( DEX) in inducing cell apoptosis and anti -proliferation in multiple myeloma(MM).Methods DEX resistance MM cell line MM1R were treated with different concentra-tions of Eicosapentaenoic acid(EPA)or Docosahexaenoic acid(DHA)alone or in combination with DEX for 24hrs or 48hrs.Cell proliferation was detected by MTT .Cell cycle and apoptosis were measured by flow cytometry .The levels of apoptosis related proteins were analyzed by Western blot .Results The proliferation of MM1R was in-hibited by different concentrations (10,20,50,100μM)of EPA or DHA alone or in combination with 10μM DEX in a dose-and time-dependent manner .Inhibition effect was significantly higher in combinative groups than in single agent groups(P<0.05).The percentage of G0/G1 phase and cell apoptosis rate in MM1R treated with dif-ferent concentrations of EPA or DHA alone was increased in a dose -dependent manner ,and being significantly higher in combinative groups than in single agent groups (P<0.05).The expressive levels of cleaved caspase -3 and Bax were up-regulated ,while pro-caspase-3 and BCL-2 were down-regulated in a dose-dependent manner.Conclusion ω-3PUFA can inhibit DEX resistant MM cell proliferation ,arrest cell cycle and induce cell apoptosis ,and has a synergistic anti -resistant effect in combination with DEX ,may serve as a new ,effective MM drugs.
3.The effect of iterative times on the segment weight optimization in IMRT plan of postoperative cervical cancer
Yuliang WU ; Songmei HE ; Chun ZHANG ; Weiyi WU ; Shunjing CUI ; Yanhai ZHAO
Practical Oncology Journal 2016;30(6):507-510
Objective To explore the use of Swedish medical company CMS 4.6.4 radiotherapy XIO system for the design process of cervical cancer postoperative IMRT plans in different iterative times of the same case,and to observe the Segment Weight Optimization(SWO)effect generated after the plan results.Methods Ten cases of cervical cancer patients were chosen ,the use of XIO 4.6.4 CMS treatment system was performed for the development of the intensity modulated radiation therapy .In the SWO process , iterative times were used to generate different plans ,without affecting the clinical dose target area requirements , and compared the organs at risk( OAR) by determining whether there were differences between dose and the number of segments ,monitor units (MU).Results For the same patients,different iterative times within a certain range of SWO IMRT plan were selected to compare the different iterative times plan ,femoral head,rectum and the bladder dose did not change the basic plan.The total number of segments and MU did not change significantly (P>0.05).Conclusion IM-RT plans in the use of CMS XIO 4.6.4 design of cervical cancer after operation in the process of using the itera-tive times below 100 times for SWO is the most suitable method for ensuring the organ dosimetry in radiotherapy . The total number of segments and the MU reduces the radiotherapy plan time so as to improve work efficiency .
4.The study on SIRT4 gene expression and prognostic factors in osteosarcoma
Qingyu SHI ; Liancai LI ; Wei MAI ; Junjie BAO ; Chunyu SONG ; Guofan QU
Practical Oncology Journal 2016;30(6):502-506
Objective To explore SIRT4 gene expression in tumor tissue and investigate the clinicol-pathological features in osteosarcoma .Methods In this study ,SIRT4 protein expression was detected in 106 os-teosarcoma tissues and 36 paired neighboring non -tumorous tissues by immunohistochemistry and determined the correlation between the SIRT 4 expression and the clinicopathological features .Results SIRT4 protein was dra-matically decreased in osteosarcoma cells compared with neighboring non -tumorous bone cells .The low expres-sion of SIRT4 was notably associated with a poor overall survival and disease -free survival in osteosarcoma pa-tients.By using univariate and multivariate analyses ,we confirmed that the increased SIRT 4 expression was an in-dependent factor in predicting better prognosis for patients .Conclu is on SIRT4 expression might be an inde-pendent biomarker for prognostic evaluation of osteosarcoma .
5.Effects of glycogen synthase kinase-3βon migration and invasion of human osteosarcoma cells
Wei MAI ; Lingyu KONG ; Chunyu SONG ; Zhichao XING ; Guoyuan WANG ; Guofan QU
Practical Oncology Journal 2016;30(6):492-496
Objective To investigate the role of glycogen synthase kinase -3beta(GSK3β)on invasion and metastasis of human osteosarcoma cells .Methods Expression and phosphorylation of GSK 3βwere examined in osteosarcoma cell lines and tumor tissue from osteosarcoma patients by Western blot .The effects of small mole-cule GSK3βinhibitors on cell metastasis were detected by cell invasion assay and cell migration assay .Results Osteosarcoma cell lines showed increased GSK 3βexpression and abnormal activity regulation .In tumor tissue of patients with osteosarcoma metastasis and non -metastasis,GSK3βwere detected expression and abnormal activi-ty,especially in tumor tissue of the patients with osteosarcoma metastasis .Inhibition of GSK3βactivity resulted in inhibiting cells invasion and migration in osteosarcoma cell line .Conclusion In this research,we demonstrated that GSK3βencouraged osteosarcoma cells metastasis .The result will open up a potential target for clinical treat-ment of osteosarcoma .
6.Construction and screening of RPL23-siRNA interference fragments
Wenmiao PENG ; Zhimin ZHANG ; Meng HU ; Lifang YU ; Bicheng ZHANG ; Zhiguo RAO ; Chuanrong QIN
Practical Oncology Journal 2016;30(6):487-491
Ob jective To construct and screen out the RPL 23-siRNA interference fragments ,providing the basis for the following experiments about the correlation with RPL 23 and gastric cancer .Methods The RPL23-siRNA,synthesized chemically through lipofection ,were selected from three target sequences by RNA in-terference and detected by real -time PCR and Western blot .Results Compared with normal cell group and RPL23 control group ,the mRNA and protein expression of RPL 23 in the other 3 interference groups were signifi-cantly decreased(P<0.01).Multiple comparisons showed that the interference efficiency of RPL 23 -siRNA1 group was significantly higher than that of RPL 23-siRNA2 group and RPL23-siRNA3 group(P<0.01).Con-clusion The RPL23-siRNA interference fragment can be successfully constructed and screened out ,which pro-vides the basis for the following experiments .
7.The study on immunity and tumor recurrence of oral cancer patients with the combination therapy of hy-perbaric oxygen treatment and postoperative adjuvant chemotherapy
Practical Oncology Journal 2016;30(6):533-537
Objective To study the treatment influences on immunity and tumor recurrence of oral canc -er patients with the combination therapy of hyperbaric oxygen treatment and postoperative adjuvant chemotherapy . Methods In the period from March 2011 to March 2014 ,84 patients were clearly diagnosed with oral cancer and randomly divided into hyperbaric oxygen treatment combined postoperative adjuvant chemotherapy group ( group A,n=42)and postoperative adjuvant chemotherapy group (group B,n=42).From day 1 prior to the last day of chemotherapy ,patients in group A were treated with hyperbaric oxygen ,and patients in group B were just accepted chemotherapy.After chemotherapy,we tested the levels of CD3 +,CD4 +,CD8 +and NK cells by flow cytometry, and the expression of IL -2,IL-4,IL-10 and INF-γby ELISA essay.All patients had been followed for two years.Results The levels of CD4 +and NK cells in group A were higher than group B (P<0.05),but the levels of CD3 +and CD8 +between the two groups were obviously different (P>0.05).Compared with group B,the ratio of CD4 +and CD8 +was increased in group A(P<0.05).The levels of cytokines involved IL -2,IL-4,IL-10 and INF-γin group A were higher than the levels of group B ( P<0 .05 ) .Follow-up results showed that pa-tients treated with hyperbaric oxygen combined postoperative adjuvant chemotherapy had less recurrence in 2 years(P<0.05).Conclusion Hyperbaric oxygen combined postoperative adjuvant chemotherapy can improve the patients′immune function ,and to be effective in preventing two years′recurrence .
8.Efficacy of recombinant human endostatin combined with vinorelbine-cisplatin regimen in newly diag-nosed patients with advanced non-small cell lung cancer patients with bone metastases and the impact on expression of serum VEGF
Rui ZHANG ; Zhiyu WANG ; Shuai WANG ; Hui ZHAO
Practical Oncology Journal 2016;30(6):527-532
Objective To explore the efficacy of recombinant human endostatin ( Rh-endostatin ) com-bined with vinorelbine -cisplatin( NP) regimen for newly diagnosed patients with advanced non -small cell lung cancer(NSCLC)with bone metastases and the impact on expression of serum vascular endothelial growth factor (VEGF).Methods From January 1,2009 to February 1,2012,a total of 40 with newly diagnosed,advanced NSCLC patients with bone metastases were enrolled in this study and randomly assigned to the treatment (N=20) or control(N=20)group.The control group was only given the NP regimen chemotherapy and the treatment group was treated with Rh-endostatin combined with NP regimen .The changes in clinical effects of the two groups and serum VEGF levels were observed .Results After two cycles of systemic chemotherapy ,objective response rate (ORR)and disease control rate(DCR)of the treatment group were 30.0% and 80.0%significantly higher than 5.0%and 45.0%of the control group(P<0.05).Serum VEGF Level did not significantly change before and af-ter treatments in the two groups (P>0.05).Conclusion Rh-endostatin combined with NP regimen can im-prove the efficiency of treatment for newly diagnosed patients with advanced NSCLC with bone metastases and does not increase adverse reactions whereas no significant difference in serum VEGF Levels .
9.Effects of autophagy on the proliferation and migration of cervical cancer cells
Yi YANG ; Yan DING ; Aiqing YU ; Shirong YAN
Practical Oncology Journal 2016;30(6):481-486
Objective To investigate the effect of autophagy on the proliferation and migration of cervi-cal cancer cells ,as well as the underlining mechanisms .Methods Rapamycin was used to induce the autophagy in HeLa cells,formation of autophagosomes was observed by staining with acridine orange under fluorescence mi -croscope.Western blot was used to detect the expression of LC 3 and PI3K/Akt/mTOR in HeLa cells.The LC3 plasmid was transfected into HeLa cells .The distribution of LC3 in cells and the expression of LC3 was identified by fluorescence microscope and Western blot ,respectively.The autophagy was inhibited with 3-methyladenine(3-MA )in HeLa cells.The cell proliferation was monitored by RTCA real -time instrument.Transwell chamber was carried out to assess cell migration .Results After 6h of rapamycin treatment ,the expression of LC3B was in-creased in HeLa cells ( P<0 .05 ) .The proliferative and migration ability were weakened compared to wild type HeLa cells(P<0.05).The same results in the presence of 3-MA.The expression of PI3K/AKT/mTOR path-way proteins were activated by rapamycin treatment and LC 3 overexpression(P<0.05).Conclusion Autophagy can suppress the proliferation and migration in cervical cancer cells ,which may relate to PI3K/Akt/mTOR path-way.
10.The research advances of zinc transporter LIV-1 in esophageal squamous cell carcinoma
Practical Oncology Journal 2016;30(6):572-576
LIV-1(SLC39A6/ZIP6),primarily located on the cell membrane ,is one of the LZT subfami-ly members among the zinc transportprotein family .It possess six to eight transmembrane spanning domains ,with regions of concentrated histidine residues ,which has been shown to participate in the process of embryonic devel-opment as well as the growth and proliferation of tumors .It has been clearly established that LIV -1 played an important role in the development of esophageal squamous cell carcinoma and its overexpression ,which turned out to be a negative correlation upon the cancer′s prognosis has been verified to be a potent therapeutic target .Here-in,the advances of zinc transporter LIV -1 and the potential significance of the transporter to esophageal squa-mous cell carcinoma are reviewed .