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| 1 | Endostatin enhances antitumor effect of tumor antigen-pulsed dendritic cell therapy in mouse xenograft model of lung carcinoma显示文摘Objective: To investigate the antitumor effect of endostatin combined with tumor antigen-pulsed dendritic cell(DC)-T cell therapy on lung cancer.Methods: Transplanted Lewis lung cancer(LLC) models of C57BL/6 mice were established by subcutaneous injection of LLC cells in left extremity axillary. Tumor antigen-pulsed DC-T cells from spleen cells and bone of mice were cultured in vitro. Tumor-bearing mice were randomly divided into three groups, including DCT+endostatin group, DC-T group, and phosphate-buffered saline(PBS) control group. Microvessel density(MVD) of tumor tissue in tumor-bearing mice was determined by immunohistochemistry(IHC). The expressions of vascular endothelial growth factor(VEGF) and hypoxia-inducible factor-1α(HIF-1α) were determined by Western blotting and IHC staining. The proportions of CD8+ T cells, mature dendritic cells(m DC), tumor-associated macrophages [TAM(M1/M2)], and myeloid-derived suppressor cells(MDSC) in suspended cells of tumor tissue were determined by flow cytometry. The expressions of interleukin(IL)-6, IL-10, IL-17, transforming growth factor-β(TGF-β) and interferon-γ(IFN-γ) in suspended cells of tumor tissue were detected by enzyme-linked immune sorbent assay(ELISA).Results: DC-T cells combined with endostatin remarkably suppressed tumor growth. MVD of mice in DCT+endostatin group was significantly lower than that of the control group and DC-T monotherapy group. The expressions of VEGF, IL-6 and IL-17 in tumors were markedly decreased, but IFN-γ and HIF-1α increased after treating with DC-T cells combined with endostatin, compared to control group and DC-T group. In the DCT+endostatin group, the proportions of MDSC and TAM(M2 type) were significantly decreased, m DC and TAM(M1 type) were up-regulated, and CD8+ T cells were recruited to infiltrate tumors, in contrast to PBS control and DC-T monotherapy. DC-T cells combined with endostatin potently reduced the expressions of IL-6, IL-10, TGF-β and IL-17 in tumor tissue, and enhanced the expression of IFN-γ.Conclusions: The study indicated the synergic antitumor effects between endostatin and tumor antigen-pulsed DC-T cells, which may be a prospective therapy strategy to achieve potent antitumor effects on lung cancer. | ring Liang Xiaolin Liu Qi Xie Guoling Chen Xingyu Li Yanrui Jia Beibei Yin Xun Qu Yan Li | 2016 | Chinese Journal of Cancer Research2016,28,4: | 8 |
| 2 | Osteogenic potential of human periosteum-derived progenitor cells in PLGA scaffold using allogeneic serum显示文摘The use of periosteum-derived progenitor cells (PCs) combined with bioresorbable materials is an attractive approach for tissue engineering. The aim of this study was to characterize the osteogenic differentiation of PC in 3-dimensional (3D) poly-lactic-co-glycolic acid (PLGA) fleeces cultured in medium containing allogeneic human serum. PCs were isolated and expanded in monolayer culture. Expanded cells of passage 3 were seeded into PLGA constructs and cultured in osteogenic me- dium for a maximum period of 28 d. Morphological, histological and cell viability analyses of three-dimensionally cultured PCs were performed to elucidate osseous synthesis and deposition of a calcified matrix. Furthermore, the mRNA expression of type I collagen, osteocalcin and osteonectin was semi-quantitively evaluated by real-time reverse transcriptase-polymerase chain reac- tion (RT-PCR). The fibrin gel immobilization technique provided homogeneous PCs distribution in 3D PLGA constructs. Live-dead staining indicated a high viability rate of PCs inside the PLGA scaffolds. Secreted nodules of neo-bone tissue formation and the presence of matrix mineralization were confirmed by positive von Kossa staining. The osteogenic differentiation of PCs was further demonstrated by the detection of type I collagen, osteocalcin and osteonectin gene expression. The results of this study support the concept that this tissue engineering method presents a promising method for creation of new bone in vivo. | ZHENG Yi-xiong RINGE Jochen LIANG Zhong LOCH Alexander CHEN Li SITTINGER Michael | 2006 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2006,7,10: | 8 |
| 3 | Novel structure for magnetic rotation bands in 60 Ni显示文摘 | P.W. Zhao S.Q. Zhang J. Peng H.Z. Liang P. Ring J. Meng | 2011 | Physics Letters B2011,,3: | 1 |
| 4 | Osteogenic potential of human periosteum-derived progenitor cells in PLGA scaffold using allogeneic serum显示文摘 | Yi-xiong Zheng Jochen Ringe Zhong Liang Alexander Loch Li Chen Michael Sittinger | 2006 | Journal of Zhejiang University SCIENCE B2006,,10: | 1 |
| 5 | WATER-SOLUBLE FULLERENE DERIVATIVES, SYNTHESIS AND CHARACTERIZA显示文摘WATER-SOLUBLE FULLERENE DERIVATIVES,SYNTHESIS AND CHARACTERIZATION OF β-ALANINE C_(60) ADDUCTSWATER-SOLUBLEFULLERENEDERIVATIV... | Liang Bing GAN Chu Ring LUO Lian Bin XU De Jing ZHOU Chun Hui HUANG(Department of Chemistry, Peking University, Beijing, 100871, China)Shan Kai ZHAO(Instrumentation Analysis and Research Center, Zhong Shan University, Guangzhou. 510275) | 1994 | Chinese Chemical Letters1994,5,4: | 1 |