Objective: To observe the clinical value of three dimensional conformal radiation therapy (3D-CRT) followed by radical surgery and discuss the best radiation technique for cervical cancer patients after radical hysterectomy. Methods: From February of 2003 to June of 2006, 155 stage I-IIIa cervical cancer patients received postoperative radiotherapy in our department after radical surgery. They were randomly divided into two groups. There were 81 patients in 3D-CRT group and 74 patients in traditional radiation group. According to FIGO staging, there were 45 cases in stage I, 77 in stage II a, 31 in stage II b, and 2 in stage III a. Pathological examination confirmed that 148 cases had squamous carcinoma and 7 cases had adenocarcinoma. The target volume included supravaginal portion, the cervical stump, paracervical tissue, common iliac, internal and external iliac, obturator, and sacral lymph nodes, and the pelvic lymphatic drainage area. For 3D-CRT group we designed four-field or two-field rotating irradiation in the left-right and the anterior-posterior direction. For traditional radiation group we designed two-field irradiation, anterior-posterior, at opposed lateral directions. The radiation dose ranged from 48-50 Gy. Stage II b patients with a cervical stump recurrence received postoperative boost irradiation by 8-10 Gy. Results: There were no significant difference in 0.5-year, 1-year, 1.5-year, and 2-year local control rate between 3D-CRT group and traditional radiation group (P > 0.05). The occurrence of early and late complications was significantly lower in 3D-CRT group than that in traditional radiation group (P < 0.05). There was significant difference in gastrointestinal reaction and urinary system reaction between the two groups (P <0.05). In postoperative radiotherapy, 3D-CRT was superior compared with traditional two-field radiation at opposed lateral directions. Conclusion: 3D-CRT is superior compared with traditional two-dimensional radiation. Four-field rotating radiation in 3D-CRT induces focused and even dose distribution and causes less side effects and complications. The side-field and cervical stump-targeted boost irradiation are apparent advantages of 3D-CRT.

Plant transgenic system secures a safe,economical and reliable supply of recombinant proteins.Plant oilbody expression system simplifies the downstream purification steps and reduces capital investment based on the nature of oleosin including high expression and easy extraction.The structures and characteristics of seed oil body and oleosin were reviewed.And the research progress and industry of the seed oil body expression system,as a new bioreactor,to produce valuable recombinant proteins were discussed.The benefits and questions of the oil body expression system were also set forth.New medicine haFGF based on the oilbody system is being developed,and its biological activity is being analyzed.As a new resource for medicine protein,oilbody expression system will be perfected and applied broadly.

OBJECTIVETo identify novel multi-drug resistance-related genes, and to explore the mechanisms of multi-drug resistance.

METHODSMulti-drug resistant cell line Lovo/5-FU was established by incubation with increasing dose of 5-FU. The sensitivity to 5-FU and cis-diaminodichloroplatinum (CDDP) was measured by MTT assay. Two dimensional electrophoresis plus mass spectrum(2-DE/MS) was used to identify the differentially expressed protein between Lovo and Lovo/5-FU. The identified protein was then verified by Western blot analysis.

RESULTSThe IC50 concentrations of Lovo/5-FU to 5-FU and CDDP were increased by 31 and 3 times, compared with Lovo (both P<0.01). 2DE-MS showed that CAP-G and RhoGDI2 were up-regulated, whereas 6-PGL, DCI, Prdx-6 and Maspin were down-regulated in Lovo/5-FU. Western blot analysis confirmed that the expression levels of RhoGDI2 and CAP-G in Lovo/5-FU were increased by 6.14 and 2.98 fold respectively (both P<0.01), whereas Maspin was decreased to 5.2% of Lovo(P<0.01).

CONCLUSIONSMulti-gene and multi-pathway are involved in the development of multi-drug resistance of colorectal cancer cells. CAP-G, RhoGDI2 and Maspin are potential multi-drug resistant genes.

Cell Line, Tumor ; Colonic Neoplasms ; genetics ; Drug Resistance, Multiple ; genetics ; Drug Resistance, Neoplasm ; genetics ; Humans ; Microfilament Proteins ; genetics ; Nuclear Proteins ; genetics ; Serpins ; genetics ; rho Guanine Nucleotide Dissociation Inhibitor beta ; genetics

OBJECTIVETo investigate the induction of antitumor immune responses and therapeutic effects of 10-hydroxycamptothecinc-treated (HCPT) DC-Hepa fusion vaccines by DC fused with hepal-6 cell from hepatoma.

METHODSThe fused cells were isolated by magnetic cell sorting and adherent culture. Cell apoptosis was detected by Rhodamine123/PI double-labeled assay, CTL activity by 4 h (51)Cr releasing assay. Protective and therapeutic effects of the fusion vaccine to the tumor-bearing mice was also observed.

RESULTSThe apoptosis rate was 29.7%+/-4.1% when DC-Hepa fusion vaccine was treated with 50 microg/ml HCPT for 24 h. After treatment with the HCPT-DC-Hepa fusion vaccine, the tumor grew obviously slowly, survival period of the mice was prolonged, induced more potent CTL cytotoxicity, and resisted against the rechallenge of Hepal-6 cells.

CONCLUSIONVaccination with HCPT-DC-Hepa fusion vaccine could elicit potent antitumor responses, which will provide a new approach to the DC-mediated therapeutic antitumor immunity.

Animals ; Antineoplastic Agents, Phytogenic ; pharmacology ; Apoptosis ; Camptothecin ; analogs & derivatives ; pharmacology ; Cancer Vaccines ; administration & dosage ; genetics ; immunology ; Cell Fusion ; Cytotoxicity, Immunologic ; Dendritic Cells ; immunology ; transplantation ; Female ; Liver Neoplasms ; immunology ; pathology ; Mice ; Mice, Inbred C57BL ; Neoplasm Transplantation ; Rats ; T-Lymphocytes, Cytotoxic ; immunology ; Tumor Cells, Cultured

Objective To understand detection results and difference in multidrug-resistant organisms(MDROs) in intensive care unit(ICU)and non-ICU.Methods Strains isolated from clinical specimens of hospitalized patients in a hospital from January 2015 to December 2016 were analyzed, 6 kinds of MDROs were conducted targeted monitoring, isolation and antimicrobial resistance of 6 kinds of MDROs from ICU and non-ICU patients were compared. Results A total of 1 013 strains of 6 kinds of MDROs were monitored, isolation rate was13.13％.Isolation rate of MDROs in ICU was higher than that of non-ICU (24.60％vs 5.47％, P＜0.001).Carbapenem-resistant Acinetobacter baumannii(CRAB)was the main isolated MDROs, accounting for 69.40％;of different pathogenic organisms, isolation rate of CRAB was the highest(55.75％).The main MDROs detected in ICU and non-ICU were both CRAB, accounting for 76.32％and 48.62％respectively;Of isolated pathogens, isolation rate of MDROs in ICU was higher than that of non-ICU(47.95％vs 8.02％, P＜0.001).Antimicrobial resistance rates of Escherichia coli isolated from ICU to ticarcillin/clavulanic acid, ceftriaxone, cefotaxime, cefepime, imipenem, meropenem, amikacin, and gentamicin were all higher than that of non-ICU, resistant to piperacillin was lower than non-ICU, difference was statistically significant(all P≤0.05);resistance rates of Klebsiella pneumoniae from ICU to common antimicrobial agents(except piperacillin)were all higher than non-ICU(all P＜0.05).Resistance rates of Acinetobacter baumannii and Pseudomonas aeruginosa from ICU to common antimicrobial agents were all higher than non-ICU (all P＜0.05).Resistance rates of Staphylococcus aureus isolated from ICU to oxacillin, ciprofloxacin, tetracycline, and rifampicin were all higher than non-ICU (all P＜0.05), and resistance rates of Enterococcus faeciumto quinupristin/dafoeleptin and tetracycline were both lower than non-ICU (both P＜0.05).Conclusion Isolation rate of MDROs in ICU is high, resistance rates to most antimicrobial agents are also higher than non-ICU, monitoring on MDROs in ICU should be strengthened, and according prevention and control measures should be formulated.

OBJECTIVETo investigate the expression of Ezrin in gastric cancer, its role in tumor metastasis.

METHODSEzrin expression in tumor tissues from 90 gastric cancer cases and in normal gastric mucosa from 12 cases with benign disease was examined by immunohistochemical staining. Ezrin expression in gastric cancer cell lines was also detected by Western blot, and in vitro invasion assay was used to examine the invasive ability of the cell lines.

RESULTSThe expression rate of Ezrin was significantly higher in gastric cancer tissues than that in normal tissues (P< 0.05), and significantly correlated with lymph node metastasis (P< 0.05). Western blot showed that MKN-45 cell line had the highest expression of Ezrin among 5 gastric cancer cells. MKN-45 possessed highest invasion ability.

CONCLUSIONEzrin expression is up-regulated, and may be associated with lymph node metastasis in gastric cancer.

Cell Line, Tumor ; Cytoskeletal Proteins ; genetics ; metabolism ; Female ; Gene Expression ; Humans ; Lymphatic Metastasis ; Male ; Neoplasm Invasiveness ; Neoplasm Staging ; Protein Array Analysis ; Stomach Neoplasms ; metabolism ; pathology

OBJECTIVETo investigate the application of proteomics in the field of serology,and to screen the differential expression proteins related with poorly differentiated gastric carcinoma.

METHODSTwo-dimensional electrophoresis (2-DE) was applied to segregate the total proteins in the serum form gastric cancer patients and health volunteers. After staining,the differential expression proteins were analyzed using PDQuest software,and identified using matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF-MS).

RESULTSElectrophoresis figures with high resolution and reproducibility were obtained. Six differential expression proteins were found only in the serum from gastric cancer patients, while four other proteins from healthy volunteers.

CONCLUSIONSProtein expression is differential in the serum from the gastric cancer patients and health volunteers. It is hopeful to find the biomarkers related with poorly differentiated gastric carcinoma using proteomics.

Adult ; Aged ; Biomarkers, Tumor ; blood ; Electrophoresis, Gel, Two-Dimensional ; Female ; Humans ; Male ; Proteomics ; Serum ; chemistry ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; Stomach Neoplasms ; blood ; pathology

Adult ; Chemoembolization, Therapeutic ; adverse effects ; Cholangitis, Sclerosing ; diagnosis ; etiology ; Humans ; Liver ; pathology ; Male ; Young Adult

OBJECTIVETo investigate the expression of cancer-related gene MPS-1 in gastric cancer and to evaluate its significance in clinical diagnosis and therapy.

METHODSThe mRNA expression of MPS-1 was determined by polymerase chain reaction after reverse transcription (RT-PCR) in cancer tissues and adjacent non-cancerous tissues from 42 cases with gastric cancer. The expression levels of MPS-1 in 6 gastric cancer cell lines (AGS, MKN-45, SGC 7901, KATO III, N-87 and SNU-1) were also determined by RT-PCR and Western blot.

RESULTSThe MPS-1 mRNA was expressed in all tissues and cell lines. The mRNA expression level of MPS-1 in cancer tissues were 1.37+/- 0.87, significantly higher than 0.99+/- 0.67 in adjacent normal gastric mucous tissues (P< 0.01). The expression of MPS-1 was correlated with TNM stage (P< 0.05), but not with age, gender, tumor size and differentiation. The expression level of MPS-1 mRNA in the primary lesions was hig her in the patients with TNM stages III, IV than those with TNM stages I, II. Meanwhile, RT-PCR and Western blot showed the same results that MPS-1 expression was higher in the six gastric cancer cell lines as compared with that in the normal gastric cell line GES-1.

CONCLUSIONThe high expression of MPS-1 in gastric cancer indicates that MPS-1 might play an important role in gastric carcinogenesis,which may provide a new target in immunotherapy for gastric cancer.

Cell Cycle Proteins ; genetics ; Cell Line, Tumor ; Female ; Humans ; Male ; Oligonucleotide Array Sequence Analysis ; Protein-Serine-Threonine Kinases ; genetics ; Protein-Tyrosine Kinases ; RNA, Neoplasm ; genetics ; Reverse Transcriptase Polymerase Chain Reaction ; Stomach Neoplasms ; genetics ; metabolism ; pathology

The study was to observe the effect of rhG-CSF (lishengsu) in treating leukopenia caused by radiotherapy and chemotherapy in patients with breast cancer. 100 cases of breast cancer received modified radical mastectomy were randomized into two groups with the same treatment of one cycle chemotherapy using the protocol of CAF at two weeks after the operations and then radiotherapy. The patients in treated group received rhG-CSF 75 micro g per day s.c. for 5 - 7 days constantly, and additional 3 - 5 days according to leukopenia during radiotherapy. The patients in control group did not receive rhG-CSF during the chemo- and radio-therapy. The results shows that nadir of WBC and neutrophil counts in the treated group was higher than that in control significantly. In conclusion, effect of lishengsu on leucopenia in process of chemotherapy and radiotherapy shows definite therapeutic effect, the side effects are not remarkable.
Adult ; Breast Neoplasms ; therapy ; Combined Modality Therapy ; Female ; Granulocyte Colony-Stimulating Factor ; adverse effects ; therapeutic use ; Humans ; Leukopenia ; drug therapy ; Middle Aged ; Recombinant Proteins