Objective:To report the results of national surveillance on the distribution and antimicrobial resistance profile of clinical Gram-negative bacteria isolates from bloodstream infections in China in 2022.Methods:The clinical isolates of Gram-negative bacteria from blood cultures in member hospitals of national bloodstream infection Bacterial Resistant Investigation Collaborative System（BRICS）were collected during January 2022 to December 2022. Antibiotic susceptibility tests were conducted by agar dilution or broth dilution methods recommended by Clinical and Laboratory Standards Institute（CLSI）. WHONET 5.6 and SPSS 25.0 software were used to analyze the data.Results:During the study period，9 035 strains of Gram-negative bacteria were collected from 51 hospitals，of which 7 895（87.4%）were Enterobacteriaceae and 1 140（12.6%）were non-fermenting bacteria. The top 5 bacterial species were Escherichia coli（ n=4 510，49.9%）， Klebsiella pneumoniae（ n=2 340，25.9%）， Pseudomonas aeruginosa（ n=534，5.9%）， Acinetobacter baumannii complex（ n=405，4.5%）and Enterobacter cloacae（ n=327，3.6%）. The ESBLs-producing rates in Escherichia coli， Klebsiella pneumoniae and Proteus spp. were 47.1%（2 095/4 452），21.0%（427/2 033）and 41.1%（58/141），respectively. The prevalence of carbapenem-resistant Escherichia coli（CREC）and carbapenem-resistant Klebsiella pneumoniae（CRKP）were 1.3%（58/4 510）and 13.1%（307/2 340）；62.1%（36/58）and 9.8%（30/307）of CREC and CRKP were resistant to ceftazidime/avibactam combination，respectively. The prevalence of carbapenem-resistant Acinetobacter baumannii（CRAB）complex was 59.5%（241/405），while less than 5% of Acinetobacter baumannii complex was resistant to tigecycline and polymyxin B. The prevalence of carbapenem-resistant Pseudomonas aeruginosa（CRPA）was 18.4%（98/534）. There were differences in the composition ratio of Gram-negative bacteria in bloodstream infections and the prevalence of main Gram-negative bacteria resistance among different regions，with statistically significant differences in the prevalence of CRKP and CRPA（ χ2=20.489 and 20.252， P<0.001）. The prevalence of CREC，CRKP，CRPA，CRAB，ESBLs-producing Escherichia coli and Klebsiella pneumoniae were higher in provinicial hospitals than those in municipal hospitals（ χ2=11.953，81.183，10.404，5.915，12.415 and 6.459， P<0.01 or <0.05），while the prevalence of CRPA was higher in economically developed regions（per capita GDP ≥ 92 059 Yuan）than that in economically less-developed regions（per capita GDP <92 059 Yuan）（ χ2=6.240， P=0.012）. Conclusions:The proportion of Gram-negative bacteria in bloodstream infections shows an increasing trend，and Escherichia coli is ranked in the top，while the trend of CRKP decreases continuously with time. Decreasing trends are noted in ESBLs-producing Escherichia coli and Klebsiella pneumoniae. Low prevalence of carbapenem resistance in Escherichia coli and high prevalence in CRAB complex have been observed. The composition ratio and antibacterial spectrum of bloodstream infections in different regions of China are slightly different，and the proportion of main drug resistant bacteria in provincial hospitals is higher than those in municipal hospitals.

Objective:To report the results of national surveillance on the distribution and antimicrobial resistance profile of clinical Gram-positive bacteria isolates from bloodstream infections in China in 2022.Methods:The clinical isolates of Gram-positive bacteria from blood cultures in member hospitals of National Bloodstream Infection Bacterial Resistant Investigation Collaborative System（BRICS）were collected during January 2022 to December 2022. Antibiotic susceptibility tests were conducted by agar dilution or broth dilution methods recommended by Clinical and Laboratory Standards Institute（CLSI）. WHONET 5.6 and SPSS 25.0 software were used to analyze the data.Results:A total of 3 163 strains of Gram-positive pathogens were collected from 51 member units，and the top five bacteria were Staphylococcus aureus（ n=1 147，36.3%），coagulase-negative Staphylococci（ n=928，29.3%）， Enterococcus faecalis（ n=369，11.7%）， Enterococcus faecium（ n=296，9.4%）and alpha-hemolyticus Streptococci（ n=192，6.1%）. The detection rates of methicillin-resistant Staphylococcus aureus（MRSA）and methicillin-resistant coagulase-negative Staphylococci（MRCNS）were 26.4%（303/1 147）and 66.7%（619/928），respectively. No glycopeptide and daptomycin-resistant Staphylococci were detected. The sensitivity rates of Staphylococcus aureus to cefpirome，rifampin，compound sulfamethoxazole，linezolid，minocycline and tigecycline were all >95.0%. Enterococcus faecium was more prevalent than Enterococcus faecalis. The resistance rates of Enterococcus faecium to vancomycin and teicoplanin were both 0.5%（2/369），and no vancomycin-resistant Enterococcus faecium was detected. The detection rate of MRSA in southern China was significantly lower than that in other regions（ χ2=14.578， P=0.002），while the detection rate of MRCNS in northern China was significantly higher than that in other regions（ χ2=15.195， P=0.002）. The detection rates of MRSA and MRCNS in provincial hospitals were higher than those in municipal hospitals（ χ2=13.519 and 12.136， P<0.001）. The detection rates of MRSA and MRCNS in economically more advanced regions（per capita GDP≥92 059 Yuan in 2022）were higher than those in economically less advanced regions（per capita GDP<92 059 Yuan）（ χ2=9.969 and 7.606， P=0.002和0.006）. Conclusions:Among the Gram-positive pathogens causing bloodstream infections in China， Staphylococci is the most common while the MRSA incidence decreases continuously with time；the detection rate of Enterococcus faecium exceeds that of Enterococcus faecalis. The overall prevalence of vancomycin-resistant Enterococci is still at a low level. The composition ratio of Gram-positive pathogens and resistant profiles varies slightly across regions of China，with the prevalence of MRSA and MRCNS being more pronounced in provincial hospitals and areas with a per capita GDP≥92 059 yuan.

Objective:To analyze the levels of antibody to measles virus in cord blood of newborns in Ankang city, and provide reference for the development of measles prevention and control measures and strategies.Methods:From January to December, 2023, 1 058 pregnant women from 10 county-level general hospitals in Ankang city were recruited in this study. Neonatal umbilical cord blood samples were collected for detecting IgG antibody against measles with ELISA. SPSS 21.0 software was used to analyze the positive rate of antibody to measles virus and the influencing factors.Results:The overall positive rate of IgG antibody to measles virus was 89.22% (944/1 058), and the geometric mean concentration (GMC) was 570.26 mlU/ml. The positive rates of IgG antibody against measles virus in umbilical cord blood of neonates born to women aged ≤20, 21-25, 26-30, 31-35, and ≥36 years old were 91.07% (51/56), 90.27% (232/257), 89.54% (351/392), 88.12% (230/261), and 86.96% (80/92), respectively (χ 2=1.355, P=0.852). Multivariate logistic regression analysis showed that the positive rate of IgG antibody against measles virus in umbilical cord blood samples was higher in neonates with gestational age ≥37 weeks than in those with gestational age <37 weeks [OR (95%CI): 0.403 (0.262-0.622)]. Besides, the positive rate was also higher in newborns with a birth weight of 3.0-3.5 kg than in those with birth weight <3 kg or ≥3.5 kg [OR (95%CI): 0.868 (0.462-1.629), 1.765(1.087-2.865)]. Conclusions:The positive rate and the GMC of IgG antibody to measles virus in neonatal umbilical cord blood decrease with maternal age. It is recommended that women of childbearing age should receive supplementary immunization with measles-containing vaccine before pregnancy.

Objective To investigate the efficacy of lapatinib combined with microwave hyperthermia in the treatment of human epidermal growth factor receptor 2(HER2)positive advanced breast cancer.Methods A total of 134 patients with HER2-positive advanced breast cancer treated in Huzhou Central Hospital from January 2019 to January 2020 were selected and divided into control group and observation group according to the lottery method,with 67 cases in each group.Both groups were treated with lapatinib,and the patients of observation group was treated with microwave hyperthermia on this basis.Tumor markers[carbohydrate antigen 153(CA153),carcinoembryonic antigen(CEA),tissue peptide antigen(TPA)],the number of circulating tumor cells(CTC),vimentin expression and quality of life were compared between two groups before and after treatment.The clinical efficacy and survival status of two groups were analyzed.Results After treatment,CA153,CEA,TPA,the number of CTC and vimentin expression in two groups were significantly lower than before treatment,and the quality of life score was significantly higher than before treatment(P<0.05).CA153,CEA,TPA,the number of CTC and vimentin expression in observation group were significantly lower than those in control group,and the quality of life score was significantly higher than that in control group(P<0.05).The total effective rate of observation group was significantly higher than that of control group(χ2=5.350,P=0.021).There was no significant difference in adverse reactions between two groups(P>0.05).After 24 months of follow-up,the overall survival and progression-free survival of observation group were significantly longer than those of control group,and the 24-month cumulative survival rate was higher than that of control group(P<0.05).Conclusion Lapatinib combined with microwave hyperthermia has a good effect in the treatment of HER2-positive advanced breast cancer,which can change vimentin expression,inhibit disease progression and prolong the survival of patients.

ObjectiveTo investigate the effect of rutin on the browning of 3T3-L1 preadipocytes and the mechanism. MethodCell counting kit-8 （CCK-8） assay was used to detect the effect of different concentration of rutin （3.125， 6.25， 12.5， 25， 50， 100， 200 μmol·L^-1） on 3T3-L1 cell activity， and Western blot to examine the effect of rutin （12.5， 25， 50 μmol·L^-1） on the expression of thermogenesis-associated proteins uncoupling protein 1 （UCP1）， PR domain containing 16 （PRDM16） and peroxisome proliferator-activated receptor γ coactivator-1α （PGC-1α） in adipocytes. After the optimal concentration of rutin was determined， the effect of rutin on lipid droplet formation in adipocytes was observed based on oil red O staining， and the expression of nuclear respiratory factor 1 （NRF1）， nuclear respiratory factor 2 （NRF2） and mitochondrial transcription factor A （TFAM）， which were the landmark proteins of mitochondrial biosynthesis， was detected by Western blot. ResultCompared with the blank group， 200 μmol·L^-1 rutin inhibited 3T3-L1 cell activity （P<0.01）. Compared with the blank group， at the concentration of 12.5， 25， 50 μmol·L^-1 rutin significantly promoted the expression of thermogenesis-associated proteins （UCP1， PRDM16， and PGC-1α） （P<0.01）， which was determined as the optimal concentration. Compared with the blank group， 50 μmol·L^-1 rutin significantly increased the immunofluorescence intensity of mitochondrial UCP1 protein in 3T3-L1 cells （P<0.01） and the expression of the markers of mitochondrial biosynthesis （NRF1， NRF2， and TFAM） （P<0.01）. In addition， 50 μmol·L^-1 rutin significantly inhibited lipid droplet formation of 3T3-L1 adipocytes （P<0.01）. ConclusionRutin inhibited lipid droplet deposition in 3T3-L1 adipocytes and increased the expression of thermogenesis-related proteins （UCP1， PRDM16， and PGC-1α） and markers of mitochondrial biosynthesis （NRF1， NRF2， and TFAM）， thereby inducing the browning of 3T3-L1 adipocytes. This lays a basis for the development of drugs that safely regulate the browning of white cells.

Objective:To investigate the short-term and medium-term changes of the left ventricular ejection fraction (LVEF) and the predictive value of relevant electrocardiogram (ECG) indexes in children with dilated cardiomyopathy (DCM) complicated with complete left bundle branch block (CLBBB).Methods:Children clinically diagnosed with DCM in the Department of Heart Center, Women and Children′s Hospital, Qingdao University and Beijing Anzhen Hospital, Capital Medical University between November 2011 and August 2020 were retrospectively recruited.According to the combination of CLBBB, they were divided into CLBBB group and non-CLBBB group.Echocardiogram and ECG were regularly performed.Short-term and medium-term changes of LVEF based on the 1-5-year follow-up data were compared between groups.COX proportional hazards model and Kaplan-Meier multiplicative limit method were used to analyze the predictive value of ECG indexes of LVEF changes in children with DCM combined with CLBBB.Results:Ninety-four children with DCM were enrolled, including 35 cases in CLBBB group and 59 cases in non-CLBBB group.There was no difference in baseline LVEF between groups.However, significant differences were found in QRS duration, corre-cted QT interval(QTc), R peak time in lead V 5 (T V5R) and QRS notching or slurring between groups ( P<0.05). LVEF of all children showed an upward trend within one year after onset, while the Z value of eft ventricular end diastolic diameter(LVEDd) showed a downward trend, and the two indexes tended to be stable within 1 - 5 years.The Z value of LVEDd in CLBBB group was significantly higher than that of non-CLBBB group, while LVEF was significantly lower (all P<0.05). The mean LVEF of CLBBB group slightly fluctuated around 50%, that of LVEF in non-CLBBB group was 60%.The multivariate COX regression analysis showed that QRS duration ( HR=0.979; 95% CI: 0.960-0.999, P<0.05) and QTc ( HR=0.988; 95% CI: 0.979-0.998, P<0.05) were independent predictors of LVEF recovery in children with DCM.Kaplan-Meier method showed a significant difference of LVEF normalization between DCM children with different QRS durations ( P<0.05), which was also detected in those with QTc interval ( P<0.05). Conclusions:LVEF of children with DCM combined with CLBBB increases in the short term after standard treatment, and then being stable.CLBBB can affect the recovery of left ventricular systolic function in children with DCM.Moreover, QRS duration and QTc interval are independent predictors of LVEF recovery in DCM children.

ObjectiveTo investigate the medicinal effect of total flavonoids of mulberry leaves on regulating liver lipid metabolism disorder in diabetes mellitus type 2 （T2DM） rats， and the mechanism based on liver peroxidase proliferators activate receptors-α （PPAR-α） and carnitine palmityl transferase-1 （CPT-1） proteins. MethodTotal flavonoids of mulberry leaves were extracted and purified by ethanol extraction + macroporous resin purification and then identified. T2DM rat model was induced by high fat diet （HFD） + streptozocin（STZ）method. Rats with blood glucose ≥ 11.1 mmol·L^-1 were divided into three administration groups with the high dose （300 mg·kg^-1）， medium dose （150 mg·kg^-1）， and low dose （75 mg·kg^-1） of total flavonoids of mulberry leaves for 8 weeks， respectively， to observe the weight and blood glucose of the rats. The pathological changes of rat livers were observed by hematoxylin-eosin （HE） staining. Biochemical method was used to detect the levels of total cholesterol （TC）， triglyceride （TG）， low density lipoprotein-cholesterol （LDL-C）， and high density lipoprotein-cholesterol （HDL-C） of blood lipid metabolism in rats. The messenger ribonucleic acid （mRNA） and protein expressions of PPAR-α and CPT-1 were determined by real-time quantitative polymerase chain reaction （Real-time PCR） and Western blot. ResultAfter 8 weeks of intervention of total flavonoids of mulberry leaves， compared with the control group， the food intake， liver index， and fasting blood glucose of rats in the model group increased significantly （P<0.01）. Compared with the model group， the food intake， fasting blood glucose， and liver index of rats in the administration groups decreased significantly （P<0.01）. The results of HE staining showed that the liver tissue structure of rats in the control group was complete and there was no obvious abnormality. The model group showed vacuolar degeneration and inflammatory infiltration of hepatocytes of rats. There was no obvious abnormality in the liver structure of rats in the administration groups. The results of blood lipid showed that compared with the control group， the levels of TC， TG， and LDL-C increased significantly （P<0.01）， but the level of HDL-C decreased significantly （P<0.01） in the model group. Compared with the model group， the levels of TC， TG， and LDL-C decreased significantly （P<0.05， P<0.01）， whereas the level of HDL-C increased significantly （P<0.01） in the administration groups. The results of Real-time PCR showed that compared with the control group， the mRNA expression of PPAR-α and CPT-1 of rats in the model group decreased significantly （P<0.01）. Compared with the model group， the mRNA expressions of PPAR-α and CPT-1 of rats in the high-dose group increased significantly （P<0.01）. The results of Western blot showed that compared with the control group， the protein expressions of PPAR-α and CPT-1 of rats in the model group decreased significantly （P<0.01）. Compared with the model group， the protein expressions of PPAR-α and CPT-1 of rats in the high-dose group increased significantly （P<0.05， P<0.01）. ConclusionTotal flavonoids of mulberry leaves can effectively reduce blood glucose and improve liver lipid metabolism disorder in T2DM rats. The total flavonoids of mulberry leaves could regulate lipid metabolism and play a hypoglycemic role by activating and regulating PPAR-α and CPT-1 proteins and promoting oxidative decomposition of fatty acids.

Objective:To learn about the iodine nutritional status and thyroid function of pregnant women in the areas of oral lipiodol pills in Xinjiang Uygur Autonomous Region (Xinjiang).Methods:In October 2019, using the probability proportionate to size sampling (PPS sampling) method, Aksu Prefecture (Aksu) of Xinjiang was divided into 5 sampling areas according to the directions of east, west, south, north and middle. One county was selected from each area, one township was selected from each county according to the directions of east, west, south, north and middle, and 20 pregnant women were selected from each township. The general demographic data of pregnant women were collected by questionnaires, and 24-hour urine samples, household salt samples and drinking water samples were collected for iodine detection, and serum samples were collected for thyroid function index detection.Results:A total of 555 pregnant women were investigated, including 121, 234 and 200 women in the early, middle and late pregnancy, with an average age of 26 years. Among them, the median of urinary iodine of women in early, middle and late pregnancy was 209.53, 204.27 and 225.29 μg/L, respectively, which was all in the appropriate state. The median of salt iodine was 24.70, 26.00 and 26.20 mg/kg, respectively, and the median of water iodine was 4.85, 3.30 and 4.85 μg/L, respectively. There were no significant difference in urinary iodine, salt iodine and water iodine during different pregnancy ( H= 1.61, 4.38, 2.63, P > 0.05). The prevalence rate of subclinical hypothyroidism, subclinical hyperthyroidism and hyperthyroidism in pregnant women was 4.32% (24/555), 0.54% (3/555) and 0.36% (2/555), respectively; and the highest prevalence rate was in the middle pregnancy, which was 7.26% (17/234), 1.28% (3/234) and 0.85% (2/234), respectively. The positive rate of autospecific antibody in pregnant women with normal thyroid function was 13.15% (73/555). The positive rate of thyroid peroxidase antibody (TPOAb) and thyroglobulin (TgAb) was 11.35% (63/555), 8.11% (45/555), respectively. After excluding the pregnant women with positive thyroid autospecific antibody, the range ( P2.5- P97.5) of thyroid stimulating hormone (TSH) in different pregnancy were close to or slightly higher than the recommended reference value in the "Guideline on Diagnosis and Management of Thyroid Diseases During Pregnancy and Postpartum (2nd ed)". Except that the P2.5 value of free thyroxine (FT 4) in early pregnancy was lower than the reference value, the FT 4 range in other pregnancy showed the same trend as that of TSH. The results of Spearman correlation analysis showed that free triiodothyronine (FT 3) and FT 4, TPOAb and TgAb, TgAb and FT 4 were positively correlated ( r= 0.497, 0.504, 0.216, P < 0.05), and TSH and FT 3 was negatively correlated ( r = - 0.194, P < 0.05) in the early pregnancy; FT 3 and FT 4, TPOAb and TgAb were positively correlated in the middle and late pregnancy ( r = 0.188, 0.527, 0.177, 0.623, P < 0.05); TSH was negatively correlated with FT 3 in the late pregnancy ( r = - 0.165, P < 0.05); there was no correlation between urinary iodine and thyroid function indexes ( P > 0.05). Conclusions:The water iodine in the outer environment of the oral lipiodol pills area Aksu in Xinjiang is low, and the iodine nutrition level of pregnant women is appropriate. Except that the P2.5 value of FT 4 in the early pregnancy is lower than the reference value, the TSH range close to or of women during each pregnancy and the FT 4 range of women in the middle and late pregnancy are slightly higher than the reference value, which still need continuous monitoring.

Objective To investigate the risk factors for early-stage complications among liver transplant recipients, and to establish and validate a risk prediction model for early-stage complications after transplantation. Methods A retrospective analysis was performed for the clinical data of 234 patients who underwent orthotopic liver transplantation in Department of Liver Transplantation, Tianjin First Central Hospital, from January 2016 to December 2018. According to the presence or absence of Clavien-Dindo grade ≥Ⅲ complications after liver transplantation, the patients were divided into complication group with 97 patients and non-complication group with 137 patients. The two groups were compared in terms of the indices including age, sex, body mass index (BMI), blood type, psoas muscle thickness/height (PMTH), Controlling Nutritional Status (CONUT) score, Model for End-Stage Liver Disease (MELD) score, total serum bilirubin, serum creatinine, international normalized ratio of prothrombin time, blood urea nitrogen, hemoglobin, white blood cell count, platelet count, amount of intraoperative red blood cell transfusion, amount of frozen plasma transfusion, blood loss, anhepatic phase, time of operation, donor age, donor BMI, cold ischemia time of donor liver, and warm ischemia time of donor liver. The independent samples t -test was used for comparison of normally distributed continuous data between two groups, and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups; the chi-square test was used for comparison of categorical data between two groups. Univariate analysis and the binary logistic regression analysis were used to investigate the risk factors for early-stage complications after liver transplantation, and a risk prediction model for complications after liver transplantation was established based on the method for establishing a scoring system using the logistic model provided by Framingham Research Center. Internal validation of the model was performed by C-index, receiver operating characteristic (ROC) curve, calibration curve, and the Hosmer-Lemeshow test, and the decision curve was used to evaluate the clinical applicability of the model. The Kaplan-Meier method was used to compare the incidence rate of early-stage complications after liver transplantation between the patients with different risk scores. Results Compared with the non-complication group, the complication group had significantly higher MELD score, proportion of patients with low PMTH, total serum bilirubin, serum creatinine, blood urea nitrogen, CONUT score, amount of intraoperative red blood cell transfusion, and amount of frozen plasma transfusion, as well as a significantly lower level of hemoglobin (all P < 0.1). The multivariate binary logistic regression analysis showed that MELD score (odds ratio [ OR ]=1.104, 95% confidence interval [ CI ]: 1.057-1.154, P < 0.05), PMTH ( OR =2.858, 95% CI : 1.451-5.626, P < 0.05), and CONUT score ( OR =1.481, 95% CI : 1.287-1.703, P < 0.05) were independent risk factors for grade ≥Ⅲ complications in the early stage after liver transplantation. MELD score, PMTH, and CONUT score were included in a predictive model, and this model had the highest score of 24 points, a C-index of 0.828, an area under the ROC curve of 0.812( P < 0.001), a sensitivity of 0.792, and a specificity of 0.751, suggesting that this predictive model had good discriminatory ability. The calibration curve of this model was close to the reference curve, and the Hosmer-Lemeshow test obtained a chi-square value of 8.528( P =0.382), suggesting that this predictive model had a high degree of fitting. The decision curve showed that most patients were able to benefit from the predictive model and achieved a high net benefit rate, suggesting that this predictive model had good clinical applicability. The score of 11 was selected as the cut-off value according to the optimal Youden index of 0.507, and the patients were divided into low-risk (< 8 points) group with 55 patients, moderate-risk (8-10 points) group with 63 patients, high-risk (11-14 points) group with 67 patients, and extremely high-risk (≥15 points) group with 49 patients. These four groups had a 90-day cumulative incidence rate of early-stage postoperative complications of 3.6%, 28.6%, 59.7%, and 75.5%, respectively, and the incidence rate of complications increased with the increase in risk score ( P < 0.001). Conclusion MELD score, PMTH, and CONUT score are independent risk factors for early-stage complications among liver transplant recipients, and the risk prediction model established based on these factors has a high predictive value in high-risk patients.

Objective To investigate the effect of silencing MFG-E8 gene on the sensitivity of SKOV3 cells to anticancer drugs and related mechanisms. Methods SKOV3 cells were transfected with MFG-E8 siRNA (Msi) and NC siRNA (Csi), respectively and the efficiency of transfection was confirmed by Western blot. The sensitivity of SKOV3 cells to cisplatin was observed by CCK-8 assay after transfection. The mRNA expression of ABCB1 and ABCC1 were detected by qRT-PCR. Effect of silencing MFG-E8 on the expression of ETM-related protein was detected by qRT-PCR and Western blot. Results MFG-E8 siRNA could effectively silence the expression of MFG-E8 protein. With the increasing drug concentration, the proliferation inhibition rate of each group also increased, and the cell proliferation inhibition rate of MFG-E8 siRNA group increased significantly (P < 0.01). Compared with NC siRNA group, downregulation of MFG-E8 expression led to decreased SKOV3 cell proliferation at 48h or 72h after 3 μg/ml cisplatin treat ment (P < 0.05). qRT-PCR results showed that the mRNA expression of ABCB1 and ABCC1 in Msi group were significantly lower than those in Csi group. qRT-PCR and Western blot results showed that silencing MFG-E8 gene down-regulated the mRNA and protein expression of N-Cadherin, Vimentin and Snail and up-regulated the expression of E-Cadherin. Conclusion Silencing the MFG-E8 gene can increase the sensitivity of SKOV3 cells against anti-tumor drugs and down-regulate the mRNA expression of ABCB1 and ABCC1, which may be related to the inhibition of EMT progression.