Studies have shown that IL-24 is the only cytokine capable of inhibiting tumor growth and neovascularization as well as stimulating immune system. IL-24 exerts its inhibition effects through pathways independent of p53, Rb, p16 and other tumor suppressor genes and has no effect on normal cells. IL-24 has emerged as a hot topic in cancer therapy research.

Child ; Diagnosis, Differential ; Gastrointestinal Diseases ; diagnosis ; etiology ; physiopathology ; therapy ; Gastrointestinal Tract ; physiopathology ; Health Knowledge, Attitudes, Practice ; Humans ; Pediatrics ; Prognosis

Gastrointestinal Diseases ; Gastrointestinal Motility ; Humans ; Research ; trends

Adaptive Immunity ; Bacterial Infections ; immunology ; prevention & control ; Biological Evolution ; Epithelial Cells ; immunology ; Gastrointestinal Diseases ; immunology ; prevention & control ; Humans ; Immunity, Innate ; Lymphocytes ; immunology ; Mucous Membrane ; cytology ; immunology ; Receptors, Pattern Recognition ; immunology ; Toll-Like Receptors ; immunology

A collective intelligent perception-supported and RDAWA-based reader-driven acquisition model of li-brary holdings was proposed with the development of academic library holdings as its background .The design ideas of RDAWA were described , the master framework of RDAWA was analyzed , the considerations in design of RDAWA that simplified the input procedure and met the reading requirements of readers were elaborated with the biblio-graphic information database , data analysis module and acquisition order generation algorithm summarized .

Objective To assess the regional left ventricular (LV) rotation motion in the patients with rheumatic mitral stenosis (MS) with velocity vector imaging (VVI).Methods This study included 38 patients with isolated MS (mild,moderate and severe) and 55 healthy control subjects.Short-axis parasternal views at the basal and apical level of LV were taken.Peak value of rotation angle and rotation velocity,as well as time to peak value were measured by VVI workplace offline respectively.Results ①In the healthy control subjects LV rotates clockwisely at the base and counterclockwisely at the apex,the same as the patients with MS.② In th patients with MS,rotaion angle and rotation velocity were significantly reduced at the apical level(P ＜0.001),rotation velocity were significantly reduced at some segments of basal level (anterior,lateral,septal) (P ＜ 0.05).③Compared with the healthy control,the difference of time to peak roation angle between base and apex was significantly longer in patients with MS (P ＜0.05).④ There were no significant differences among mild,moderate and severe MS (P ＞0.05).Conclusions The patients with MS may suffer from systolic dysfunctin even in the early stage identified by the alteration of LV rotation motion,which is independent of the hemodynamic severity of MS.

BACKGROUND:Stem celltherapy research has been able to continue to observe the different types of stem cells, but there is stil no single imaging mode for a comprehensive evaluation of the effect of stem celltherapy.
OBJECTIVE:To review the tracing of cellmarkers and imaging technology in stem celltherapy and to prospect the clinical application of molecular imaging in stem celltherapy.
METHODS:The first author retrieved the PubMed for articles (January 2005 to December 2012) regarding application of molecular imaging in stem celltherapy, cellmarking methods and imaging technology, ideal imaging mode for stem celltherapy, and tracing of different stem cells using molecular imaging method. The key words were“molecular imaging, stem celltherapy, celltransplantation, regenerative medicine”in English. Twenty of 269 papers were included in result analysis.
RESULTS AND CONCLUSION:At present, the ability to continuously monitor the biological processes of the transplanted stem cells relies on the histological analysis at different times. However, molecular imaging can observe in vivo complex system functions at the molecular, cellular, organ, and whole body level. As the technology improves, the change in the molecular level can be assessed in the context of the living organism. At the same time, a number of methods are available and meeting the demands to track stem cells by molecular imaging. Imaging technology increases the feasibility of stem celltherapy, and contributes to clarify the new biological mechanism during the stem celltherapy.

Background and purpose:Triple-negative breast cancer (TNBC) possesses high risk of relapse and metastasis. Clinically, there are no speciifc targeted-therapies to TNBC except chemotherapy. Therefore, studying the mechanism of relapse and metastasis has signiifcance to improve the patients’ survival rate. This experiment aimed to study the effect of MAPK activation on migration and invasion of triple-negative breast cancer cells. Methods:Difference of migration and invasion between lung-high metastasis breast cancer cell line 231-HM and its parental cell line 231-p were first examined by cell scratch and transwell;Then, metastasis-associated proteins and MAPK-associated molecules were detected by Western blot; Last, 231-p cells were treated with P38/MAPK inhibitor and used to determine cell migration, invasion, and metastasis-associated proteins thereafter. Results:Compared with the parental cell line 231-p, 231-HM cells displayed obviously higher ability of migration and invasion. With the increased expression of Caveolin-1and β-catenin, the phosphorylation of MAPK-associated molecules including P38, Erk1/2, and MEK was highly decreased. Treatment of 231-p cells with low concentration (10 μmol/L) of the P38/MAPK inhibitor SB202190 increased the migration and invasion of 231-p cells, and the expression of Caveolin-1 andβ-catenin. Conclusion:Activation of MAPK signaling inhibits the migration and invasion of triple-negative breast cancer.

Objective:Our purpose was to establish an ideal chronic pressure-afterload heart failure rat model which has the transition from cardiac hypertrophy to heart failure. Methods: Chronic pressure-afterload heart failure rat model was induced by gradually constricting the ascending aorta of young rats. Young rats were randomly divided into 2 groups: the constricted and sham-operated groups. Clinical manifestation, tail-cuff blood pressure, organ weight, and hemodynamic data were observed at various time after operation. Results: The overall survival rate was 87%. Tail-cuff pressure began to increase in 4 weeks after operation. Left ventricular hypertrophy appeared in 12 weeks and heart failure in 5 months. Conclusion:It's a practical and reproducible model of cardiac hypertrophy that progresses to chronic heart failure.