Pancreatic cancer is one of the most malignant tumors with a high mortality rate attributed to its widespread metastasis.A number of cellular signal transduction pathways involved in multiple genes play an important role in regulating this complex metastatic cascade of pancreatic cancer.NF-kappa B is one of the crucial signaling pathways.Studies has indicated that NF-kappa B could modulate a series of biological events relevant to tumor progress by controlling multiple targeted genes expression,such as cell proliferation,anti-apoptosis,angiogenesis,epithelial-mesenchymal transition,inflammation,stress response,etc.Furthermore,it can also up-regulate Hedgehog and MMPs signaling pathways.To help us better understand the potential mechanism and identify more sensitive tumor markers and selective targets,this review will underline the significant roles of NF-kappa B signaling pathway in regulatory network of pancreatic cancer metastasis.

Objective To explore the clinical application and value of percutaneous treatment of pancreatic pseudocysts guided by CT.Methods The percutaneous external draining of pancreatic pseudocyst caused by various causes was performed under CT guidance in 29 cases, including 21 males and 8 females, age from 22 to 71 years, average (48.2?13.6) years. After the point, the angle,and the depth of puncture were measured on CT images, pseudocyst puncture and catheterization of external draining were made and followed up. Results 30 procedures of puncture in 29 lesions were done, the successful rate was 100%. Puncture path included frontal in 17 cases(18 times of puncture), lateral in 8 cases ; back in 4 cases, and 30 drainage catheters were placed. All cases were followed up except one case, follow up time ranged from 1 to 20 months [average (8 07?4 04) months]. Following disappearance of pseudocyst, catheters were extracted in 19 cases except 2 cases with pseudocyst recurrance. Follow up time from 4 to 14 months[average (8.29?4.03) months]. 5 cases had surgerical operations again after draining 1-4 months, 4 cases were still being followed up. The effective rate of therapy was 65.52%(19/29). Conclusion The technique of percutaneous catheter external draining of pancreatic pseudocyst guided by CT is mildly invasive and simple, and has high successful rate.

Objective To observe the changes of glycocholic acid (CG) and evaluate the diagnostic value of CG combined with total bile acid (TBA) and leucine aminopeptidase (LAP) in various liver diseases.Methods From October 2016 to March 2017,210 serum samples of healthy people,asymptomatic hepatitis B virus (HBV) infected,hepatitis,biliary obstruction,hepatocirrhosis and primary hepatocellular carcinoma patients were collected.CG and LAP were detected by corresponding kits,and liver function,coagulation function and other indicators of patients were collected and analyzed statistically.Results The serum level of CG were elevated in the 4 liver disease groups and differed statistically from the normal group or the asymptomatic HBV infected group.CG level was positively correlated with LAP (r =0.380,P ＜ 0.01).In liver function indexes,CG was correlated with total bilirubin (TB),direct bilirubin (DB),TBA and alkaline phosphatase (AKP).At the same time,CG was correlated with fibrinogen(Fib),thrombin time(TT).LAP and TBA were introduced into regression equation Y =-0.835 + 0.157X1 +0.312X2 (X1:LAP,X2:TBA,R2 =0.685) as final variables in multivariate linear regression to analyse the influencing factors of CG.Receiver operator characteristic (ROC) curve analysis showed that CG had the strongest ability to diagnose liver diseases in combination with LAP.Conclusions The change of CG level is of great significance in all kinds of liver diseases.The combination of LAP has the strongest ability to diagnose liver diseases.

Objective To investigate the expression level of nucleobindin-2 (NUCB2/Nesfatin-1) in nasopharyngeal carcinoma (NPC) patients, other patients with head and neck cancer, rhinitis patients, and healthy subjects in the serum, and evaluate the clinical application value of NUCB2/Nesfatin-1 combined with three items of Epstein-Barr (EB) virus (EA-IgA;VCA-IgA;Rta-IgG) in NPC diagnosis.Methods From Xiangya Hospital of Central South University during January 2017 to June 2017, nasopharyngeal carcinoma patients, other patients with head and neck cancer, rhinitis patients, and healthy subjects samples were 140 cases, respectively.The corresponding kits were used to detect nesfatin-1, EA-IgA, VCA-IgA, and Rta-IgG.Results The serum level of nesfatin-1 in NPC patients was the highest, and the difference was statistically significant compared to other groups.The serum levels of EA-IgA, VCA-IgA, and Rta-IgG were the highest in NPC patients, and were significantly different from those in other groups.Nesfatin-1 was significantly correlated with VCA-IgA and Rta-IgG.There was no significant correlation between nesfatin-1, EA-IgA and NPC staging;Multiple linear regression analysis was used to analyze the influencing factors of nesfatin-1, and the regression equation was Y =208.029 + 17.96X1 + 146.702X2 + 398.879X3 (X1:age;X2:VCA-IgA;X3:Rta-IgG;R2 =0.236).Receiver operating characteristic (ROC) curve analysis showed that nesfatin-I combined with VCA-IgA and Rta-IgG had the best efficiency in the diagnosis of NPC.In single index evaluation, nesfatin-1 has the lowest specificity, but the highest sensitivity.Conclusions The sensitivity of nesfatin-1 for NPC diagnosis is polar altitude, it can make up for the deficiency of EA-IgA, VCA-IgA, and Rta-IgG in diagnosing NPC.The combination of VCA-IgA and Rta-IgG can greatly improve the ability of diagnosing NPC.

Objective To explore the relationship between urinary iodine level and breast cancer,we compare urinary iodine excretion levels in patients with breast cancer,benign breast disease,other female malignant tumors and control subjects in Xiangya Hospital of Central South University.Methods From December 2018 to January 2019,64 patients with newly diagnosed breast cancer in Xiangya Hospital of Central South University were selected as case group,benign breast disease group (n =49),other female malignant tumor group (n =39) and health examination group (n =50) as control group.Urinary iodine was determined by colorimetry.According to the urinary iodine level the patients divided into three groups:iodine excess (＞300 μg/L),medium iodine (100-300 μg/L) and iodine deficiency (＜ 100 μg/L).The relationship between urinary iodine and clinicopathology of breast cancer was analyzed.Results The level of urinary iodine in benign breast nodule group 319.13 (163.98) μg/L ＞ breast cancer group 273.96 (151.30) μg/L ＞ female other malignant tumor group 212.95 (161.71) μg/L ＞ normal control group 199.15 (194.45) μg/L,with significantly differance (H =9.936,P =0.019).Urinary iodine level in the normal control group was significantly lower than that in the benign breast disease group (P =0.013).The patients were further divided into three groups according to the urinary iodine level:iodine excess,iodine medium and iodine deficiency,the number of urine iodine ＜ 100 μg/L in the normal control group was significantly higher than that in the breast cancer group (P =0.021).The level of urinary iodine was negatively correlated with the size of the primary focus of breast cancer (Z =-2.307,P =0.021).The effect of urinary iodine was analyzed by multiple linear regression method.The size of primary focus was included in the regression equation (R2 =0.136,P=0.007),but had nothing to do with lymph node metastasis and the expression status of estrogen receptor (ER),androgen receptor (AR),progesterone receptor (PR) and human epidermal growth factor receptor-2 (HER-2).Conclusions There is a negative linear correlation between urinary iodine level and the size of primary focus of breast cancer,but it has nothing to do with lymph node metastasis and the expression of ER,AR,PR and HER-2.

BACKGROUND:Photothermal therapy is a novel tumor treatment strategy that uses photothermal agents to transform light energy into heat energy to accomplish non-invasive tumor ablation.The rise of photothermal therapy and nanotechnology has provided a new perspective on breast cancer treatment.OBJECTIVE:To prepare a new type of near-infrared biomimetic nanoprobe that has been modified by breast cancer cell membrane,to investigate the effect of near-infrared fluorescence/ultrasound imaging in vitro,and to observe its targeting ability and photothermal therapy effect on homologous tumor cells in vitro.METHODS:Organic small molecule ITIC-4CI with A-D-A structure was used as photothermal agents;polylactic acid/glycolic acid copolymer as nanocarrier;4T1 cell membrane of mouse breast cancer cells as a surface modifier of nanoparticles;perfluorohexane(PFH)was loaded.A novel near-infrared biomimetic nanoprobe(4T1m/ITIC-4CI/PFH)was prepared by the double emulsion evaporation method and sonication method.The basic characterization of the nanoprobe and the homologous targeting ability were detected.The photothermal properties and photothermal stability of the probe were investigated,and the near-infrared fluorescence/ultrasound imaging effect of the probe under laser irradiation was observed.The CCK-8 assay and calcein/propidium iodide staining were used to assess the efficacy of photothermal therapy.RESULTS AND CONCLUSION:(1)The prepared 4T1m/ITIC-4CI/PFH nanoprobes had uniform size,high stability,and an average particle size of(92.7±2.3)nm.The probe's protein composition was identical to that of the 4T1 cell membrane.The nanoprobe's ability to target homologous 4T1 cells was validated by an in vitro cell uptake assay.(2)The nanoprobe had a red-shift absorption spectrum and tail emission extending to the near-infrared-Ⅱ,which emitted a bright near-infrared-Ⅱ fluorescence signal under laser irradiation.(3)After laser irradiation,the nanoprobe 4T1m/ITIC-4CI/PFH could be turned into microbubbles and enhanced ultrasound imaging.The results of CCK-8 assay and calcein/propidium iodide staining showed that the nanoprobe 4T1m/ITIC-4CI/PFH had an obvious photothermal killing effect on 4T1 cells.(4)The results show that the nanoprobe 4T1m/ITIC-4CI/PFH has the ability to target homologous tumors and enhance near-infrared-Ⅱ fluorescence imaging/ultrasound imaging and photothermal therapy effects.

Objective: The expression of spectrin beta chain, brain1(SPTBN1) were measured in nasopharyngeal carcinoma (NPC) cell lines, as well as tissues and serums of NPC cases and normal controls. The clinical value of SPTBN1 expression for NPC diagnosis were assessed along with the antibody levels of early antigen-IgA(EA-IgA) and viral capsid antigen-IgA(VCA-IgA). Methods: A total of 71 nasopharynx tissue specimens and 130 serum from both NPC cases and matched health controls were collected from December 2016 to December 2018. In logistic regression the levels of SPTBN1, EA-IgA, VCA-IgA were identified and included in an integrative risk prediction model. Discriminatory accuracy was measured by generation of receiver operator curves and estimation of area under the curve (AUC). Results: The SPTBN1 concentration in cell lines from NP69, 6-10B to 5-8F showed a decreasing trend (H=50.205, P<0.05). The SPTBN1 expression level in serums were significantly lower [73(42, 142)] compared to controls, while EA-IgA and VCA-IgA levels [3.42(1.29, 5.19),3.55(1.95, 5.01)]were higher in NPC serum samples (H_SPTBN1=24.105, H_EA-IgA=52.398, H_VCA-IgA=70.426, P<0.01). The findings were confirmed in tissues that the positive SPTBN1 rate were significantly lower in cases (86.7%) as compared to controls (43.9%, χ²=13.443, P<0.001). In the risk prediction model for NPC diagnosis, the AUC of SPTBN1 alone and the integrated regression model were 0.794 and 0.987, respectively (Z=4.900,P<0.01). Conclusions The lower expression of SPTBN1 was a potential marker in NPC diagnosis. The combined analysis of SPTBN1, EA-IgA and VCA-IgA may improve the sensitivity and specificity in NPC diagnosis.