Objective:To investigate the cytokine profile expressed by CIK cells.Methods:CIK cells were induced from peripheral blood mononuclear cells in the presence of IFN-?,IL-1?,IL-2 and mAb against CD3. The phenotype and characterization of CIK cells were identified by flow cytometric analysis.Cytokine expression profiles were determined at mRNA level by semi-quantitative RT-PCR.Results:The percentage of CD3~+CD56~+ positive cells reached up to or higher than 50%.CIK cells couldn't express IFN-?、IFN-? and IFN-? under this kind of condition. But they could express IFNs principally on day 10 to 20. The level of ILs went down after steadily expressed on day 6 to 10(or 20).TNF-? and TRAIL constitutively expressed during the culture period in vitro. TNF-? maintained high expression on day 20.TGF-?_1 mainly expressed on day 30.Conclusion:CIK cells can widely express various kinds of cytokines in vitro.

The microfluidic channels integrated with microring resonator were designed. The salt coalescence on chip surface caused by liquid volatilization in open environment was avoided and only 30 μL of reaction solution was consumed. These channels significantly reduced the experiment cost. The design, fabrication and characterization of a highly sensitive and label-free silicon-on-insulator (SOI) microring optical resonator integrated with the microfluidic channels were demonstrated. The radius of the microring was 5 μm and the straight waveguide with a width of 450 nm was employed in the microring resonator. The microring resonator device had many advantages such as high sensitivity, label-free and real-time detection. Using different concentrations of ethanol solution with known refractive indices, the refractive index detection sensitivity was 76.09 nm/RIU and the volume refractive index detection limit was 5.25×10Symbolm_4 RIU. We also demonstrated the label-free quantitative specific detections of human immunoglobulin G (IgG) solutions using an antibody-modified microring resonator by measuring the resonance wavelength shift resulting from refraction index changes causing by the immobilization of antibodies and specific recognition between antibodies and antigens, respectively. The results showed that the microring optical resonator could real-time monitor the reaction between biological molecules, the resonator could be used in the quantitative detection and biological sensing.

Objective: To prepare an immunoconjugate of anti-EGFR monoclonal antibody (ETS) and adriamycin(ADR) and to investigute it's inhibitory effect on human epidermoid carcinoma (A431) in vitro and in vivo and it's side effect on C57BL/ 6J mice.Methods:The immunoconjugate(ETS-ADR) was prepared with an improved glutaraldehyde conjugate method and the cytotoxicity effects of EQ75-ADR on A431 cells and Wish cells were measured by MTT assay. A431 tumor-bearing nude mice and C57BL/6J experimental model were established and were used for testing the inhibitory edicts of EQ75-ADR. The side effect of EQ75-ADR was compared with ADR. Results:The EQ75-ADR showed specific cytotoxicity on A431cells,the ytotoxicity of EQ75-ADR was 50-fold, 14-fold and 10-fold more efficient than that of EQ75, ADR and mixture of EQ75 and ADR (EQ75+ ADR) respectively.The effect of EQ75-ADR on with cells was 10-fold less efficient than that of ADR and EQ75+ADR. As compared with the cytoxicity effect of EQ75-ADR on Wish cells with A431 cells, it showed 300-fold less efficient.Similar cytotoxicity results were shown in 2 h treatment experimental group. The EQ75-ADR exhibited significant anti-tumor activity on tumor-bearing nude mice,and the inhibition late is 92.2% (P

Objcetive: To explore the treatment of long segment defect of tibia by using tensor fascia lata combined with iliac flap or deep circumflex iliac pedicle iliac flap. Methods: From February 2012 to August 2017, The People′s Hospital of Zun Yi City Bo Zhou District treated 16 patients who had long segment defect of tibia.There were 11 males and 5 females, age from 22 to 58 years old, the average age was 42 years old. Iliac flap grafting with tensor fascia lata combined with iliac flap or deep circumflex iliac pedicle was used to treat the defect of long segment of tibia. There were 4 cases with simple tibial defect and 12 cases with skin defect. The longest tibial defect was 5-8 cm. Results: In this study, four patients used iliac flaps with deep circumflex iliac pedicle, the area of flaps ranged from 2.5 cm×5.0 cm to 5.0 cm×10.0 cm, while the area of iliac flaps ranged from 5.0 cm×2.5 cm to 8.0 cm×4.0 cm. Twelve patients used grafting with tensor fascia lata combined with iliac flap, the area of flaps ranged from 5.0 cm×12.0 cm to 12.0 cm×23.0 cm, while the area of iliac flaps ranged from 7.0 cm×2.0 cm to 8.0 cm×4.0 cm. All 16 cases of bone flap were survived, fracture healing, without surgical complications. The average follow-up period was 1.5 years, the flaps had good appearance in 10 cases and was slightly bloated in 6 cases; the ankle had normal motion in 14 cases and had poor dorsal extension in 2 cases. X-ray films showed that the bone flap repaired the bone defects and reached bone healing. Conclusions Vascularized tensor fascia lata combined with iliac flap or deep circumflex iliac pedicle iliac flap grafts increase local blood supply and accelerate the process of fracture healing.