1.Hepatocyte growth factor modified human umbilical cord mesenchymal stem cell therapy promotes remyelination after intracerebral hemorrhage in rats
Anmin LIU ; Ming LUO ; Wangqing CAI ; Fangcheng LI ; Guo LI ; Waisang POON
Chinese Journal of Pathophysiology 2000;0(10):-
AIM:To study the effects of neurological improvement and remyelination after intracranial hemorrhage(ICH)in rats by a novel therapeutic strategy with hepatocyte growth factor(HGF)gene transfected human umbilical cord mesenchymal stem cells(hUCMSCs)by lentiviral vector.METHODS:ICH was induced in 60 adult male Sprague-Dawley rats by a stereotactically guided injection of bacterial type IV collagenase into the right internal capsule.Non-modified hUCMSCs,HGF-modified hUCMSCs with lentiviral vector or PBS were administered left intraventricularly 7 d after right internal capsule ICH.All rats underwent modified neurological severity scores for 35 d.Luxol fast blue staining,immunohistological staining and Western blotting assessments for myelin basic protein(MBP)were applied.RESULTS:The ICH rats receiving HGF-modified hUCMSCs demonstrated significant functional recovery,determined by modified neurological severity scores,compared to the other groups from 2 weeks after cell therapy.As indicated by Luxol fast blue staining,the percent area of demyelination was obviously reduced in the HGF-hUCMSC treatment group compared to the PBS control group and hUCMSC-only treatment group at 5 weeks after ICH.The expression of MBP detected by immunohistological staining and Western blotting was significantly higher in HGF-hUCMSCs treated brain than that in other groups(P
2.Effect of rehabilitation on dysphagia and trismus induced by radiation in patients with nasopharyngeal carci-noma
Yiping WANG ; Yimin LIU ; Wangqing CAI ; Yonglin MAO ; Kui LU ; Ying PENG ; Yamei TANG
Chinese Journal of Physical Medicine and Rehabilitation 2009;31(12):832-834
Objective To evaluate the effect of rehabilitation training on dysphagia and trismus in patients with nasopharyngeal carcinoma after radiotherapy.Methods Fony-three post-radiotherapy nasopharyngeal carcino-ma patients were divided into a rehabilitation group and a control group.Both groups were subjected to routine treat-ment,while the rehabilitation group received rehabilitation training in addition.The patients were assessed with a wa-ter-swallowing test of swallowing.Late effects of normal tissues/subjective and objective medical analysis(LENT/SOMA)scored and inter-incisor distance were measured to assess trismus before and after treatment.Results The rehabilitation group displayed significant improvement in swallowing as well as increased inter-incisor distance.Con-clusions Rehabilitation training can improve swallowing,prevent or delay trismus and improve the quality of life of patients.
3.Effect of PDLIM4 gene on the prognosis of glioma and its cell radiosensitivity
Ming LUO ; Wangqing CAI ; Kaishu LI ; Jiahao LIU ; Weiping XUE ; Yimin LIU
Chinese Journal of Radiological Medicine and Protection 2017;37(10):725-729,762
Objective To investigate the effect of PDLIM4 (PDZ and LIM domain 4) gene on the prognosis and radiosensitivity of glioma. Methods The differentially expressed genes were analyzed by bioinformatics technique using GSE53733 gene chip. The expression of PDLIM4 protein was detected by Western blot. The effects of PDLIM4 gene on glioma prognosis and glioma cell radiosensitivity were studied by using real-time fluorescence quantitative PCR, siRNA, MTT and cell flow cytometry assays. Results PDLIM4 gene had the most significant differential expression in the chip (logFC=1. 055897, P<0. 05). The PCR assay of 40 glioma cases in our hospital confirmed that expression of PDLIM4 showed obvious difference between high- and low-grade gliomas (t =4. 44, P <0. 05), which was correlated with the survival of patients (χ2 =5. 52, P<0. 05). Moreover, PDLIM4 gene was involved in radioresistance of glioma cells (t = 35.99, P < 0.05). Conclusions PDLIM4 gene expression level correlates with malignant degree and prognosis of glioma and also contributes to cell radioresistance.
4.Decreased sorting nexin 10 expression predicts poor clinical outcomes of patients with gliomas
Mingliang HE ; Ming LUO ; Leping OUYANG ; Wangqing CAI ; Yinlun WENG ; Anmin LIU
Chinese Journal of Neuromedicine 2016;15(3):237-240
Objective To investigate the sorting nexin 10 (SNX10) expression in glioma tissues and its relationship with prognosis of the patients.Methods Thirty glioma specimens,collected from surgery and conformed by pathology in our hospital from January 2007 to December 2012,were used in our study,and in them,9 were WHO grade Ⅰ and Ⅱ and 21 were WHO grade Ⅲ and Ⅳ;and 30 nonneoplastic tissue specimens collected during decompression were used as control group.Immunohistochemical staining using polyclonal SNX10 antibody was performed on paraffin embedded specimens.The staining intensity was stratified as absent (-),weak (+),moderate (++) and strong (4+++).The relationships of SNX10 expression with several clinic pathologic indicators and prognosis were analyzed.Results High SNX10 expression was noted in 12 specimens and low SNX10 expression in 18 specimens of the glioma group.High SNX10 expression was noted in 25 specimens and low SNX10 expression in 5 specimens of the control group;the high SNX10 expression rate in glioma tissues was significantly lower than that in non-neoplastic brain tissues (P<0.05);the high SNX10 expression rate in high-grade glioma tissues was significantly lower than that in low-grade glioma tissues (P<0.05).The median survival time ofglioma patients with high SNX10 expression was 22.50±8.27 months,and that of glioma patients with low SNX10 expression was 15.50±0.99 months.The survival rate of glioma patients with low SNX10 expression was significantly lower than that of glioma patients with high SNX10 expression (34% vs.65%,P<0.05).By Cox multi-factor risk scale model,the expression level of SNX10 and grading of tumors were identified as the independent risk factors of patient's post-operative death;following the decreased SNX10 expression,the risk of postoperative death increased 1.983 times (95% confidence interval=1.602-2.314,P<0.05).Conclusions Decreased SNX10 expression is associated with occurrence and development of gliomas,and has a significant effect on patients' post-operative survival time.Decreased SNX10 expression level may be an important index of poor prognosis in glioma patients.
5.Expression and significance of heme oxygenase Ⅰ in gliomas
Leping OUYANG ; Kaishu LI ; Jiahao LIU ; Mingliang HE ; Wangqing CAI ; Yuefei DENG ; Anmin LIU
Chinese Journal of Neuromedicine 2017;16(6):559-563
Objective To investigate the expression and biological value of heme oxygenase I (HO-1) in gliomas. Methods Fifty-six patients with gliomas, admitted to and accepted surgery in our hospital from January 2010 to January 2015, were chosen in our study; WHO grade I was noted in 4 patients, grade Ⅱ in 16, grade Ⅲ in 10, and grade IV in 26 patients; patients with grade I and Ⅱ were as low-grade glioma group and patients with grade Ⅲ and IV were as high-grade glioma group. The HO-1 expression in the two groups was detected by immunohistochemistry. R-langrage survival tool was used to analyze the relation between HO-1 expression and prognosis of 1107 patients with gliomas selected from The Cancer Genome Atlas (TCGA) database. Results Significant differences of HO-1 expression were observed in different grades of gliomas (P<0.05), and HO-1 high-expression rate in the high-grade gliomas (75%) was significantly higher than that in the low-grade group (30%, P<0.05). HO-1 protein expression level in the high-grade gliomas was significantly higher than that in the low-grade group (P<0.05). Moreover, area under the curve (AUC) of the receiver operating characteristic curve was suggested that the HO-1 could be an ideal determine factor (AUC=0.747, P=0.002). Log rank analysis indicated that the accumulate survival rate in patients with low HO-1 expression was significantly higher than that in patients with high HO-1 expression (P<0.05). TCGA database analysis showed that simultaneous survival rate in patients with low HO-1 expression was significantly higher than that in patients with high HO-1 expression (P<0.05). Conclusion Expression of HO-1 is correlated with the malignant degrees and prognoses of gliomas, and it has potential to be a novel biological marker for the diagnosis and treatment of gliomas; furthermore, HO-1 could also be a target for the study and treatment of gliomas.