期刊文献+
共找到10篇文章
< 1 >
每页显示 20 50 100
人恶性脑膜瘤原代细胞的培养及小鼠颅内原位成瘤模型的建立 被引量:3
1
作者 胡梅新 刘家乐 +4 位作者 陈宣伯 徐安琪 舒松仁 汪潮湖 刘忆 《南方医科大学学报》 CAS CSCD 北大核心 2018年第3期340-345,共6页
目的培养稳定的恶性脑膜瘤原代细胞以及建立颅内原位成瘤模型。方法改良法培养术前高度可疑恶性脑膜瘤原代细胞,稳定传代后细胞免疫荧光鉴定;将细胞用立体定向仪接种于6只裸鼠大脑右侧顶叶,同时用注射器种植于6只裸鼠皮下;6周后处死裸鼠... 目的培养稳定的恶性脑膜瘤原代细胞以及建立颅内原位成瘤模型。方法改良法培养术前高度可疑恶性脑膜瘤原代细胞,稳定传代后细胞免疫荧光鉴定;将细胞用立体定向仪接种于6只裸鼠大脑右侧顶叶,同时用注射器种植于6只裸鼠皮下;6周后处死裸鼠,HE染色和免疫组化检测肿瘤的增殖以及对周边脑组织的侵犯。结果成功培养并稳定传代恶性脑膜瘤原代细胞(术后病理:间变型恶性脑膜瘤),细胞免疫荧光检测Vimentin(+)和EMA(+),生长曲线呈"S"型,FITC法流式细胞术检测Q3区域占95.99±2.58%;6周后,皮下成瘤组可见明显肿瘤结节,原位成瘤组裸鼠明显消瘦;成瘤组织切片染色皮下成瘤组和颅内成瘤组Ki-67表达约36±5.35%,颅内成瘤组周边脑组织侵犯明显。结论成功培养人恶性脑膜瘤原代细胞并实现稳定传代,首次探究人恶性脑膜瘤原代细胞原位成瘤模型的建立。 展开更多
关键词 恶性脑膜 原代细胞培养 细胞鉴定 颅内成瘤模型 Ki-67
下载PDF
RAD51C表达下调对小鼠卵巢癌体内成瘤和VEGF、NRP-2表达的调控
2
作者 卢小丽 李夏影 +2 位作者 王芬 刘丝荪 芦春斌 《南昌大学学报(医学版)》 2024年第5期44-49,68,共7页
目的探讨RAD51旁系同源基因C(RAD51C)表达下调对小鼠卵巢癌体内成瘤和血管内皮生长因子(VEGF)、神经纤毛蛋白-2(NRP-2)表达调控的影响。方法使用A2780卵巢癌细胞,通过培养检测细胞中RAD51C的表达,构建3种RAD51C干扰载体(SiRNA-47、SiRNA... 目的探讨RAD51旁系同源基因C(RAD51C)表达下调对小鼠卵巢癌体内成瘤和血管内皮生长因子(VEGF)、神经纤毛蛋白-2(NRP-2)表达调控的影响。方法使用A2780卵巢癌细胞,通过培养检测细胞中RAD51C的表达,构建3种RAD51C干扰载体(SiRNA-47、SiRNA-183和SiRNA-285),并包装成慢病毒,转染细胞,逆转录实时定量聚合酶链式反应(RT-qPCR)验证转染效果,进行稳筛,构建稳转细胞株。使用Balb/c雌性裸鼠建立细胞系来源的异体移植肿瘤模型(CDX)模型,将18只建模成功的裸鼠分为3组:A2780细胞组(Control组)、A2780细胞+空载体对照组(NC组)、A2780细胞+RAD51C干扰组(Si-RAD51C组),每组各6只。Control组注射生理盐水,NC组注射空载慢病毒50μL,Si-RAD51C组注射RAD51C干扰慢病毒50μL。观察各组成瘤情况,取肿瘤组织,采用蛋白质印迹法(WB)、免疫组织化学检测RAD51C、VEGF、NRP-2蛋白表达情况。结果RT-qPCR验证RAD51C干扰慢病毒转染效果以SiRAN-285最明显(P<0.05)。Si-RAD51C组与Control组、NC组比较瘤体的体积最小、重量也最轻,且RAD51C、NRP-2及VEGF蛋白的表达显著降低(P<0.05)。结论RAD51C干扰慢病毒可抑制小鼠A2780卵巢癌细胞肿瘤的形成,且对RAD51C、NRP-2及VEGF蛋白的表达均有抑制作用。 展开更多
关键词 RAD51旁系同源基因C 卵巢癌 血管内皮生长因子 神经纤毛蛋白-2 裸鼠成瘤模型 体外实验 小鼠
下载PDF
pEGFP-ING4抑制裸鼠皮下人U87移植瘤生长及肿瘤血管生成 被引量:1
3
作者 邓跃飞 赵义营 +1 位作者 雷炳喜 牛江涛 《中国神经精神疾病杂志》 CAS CSCD 北大核心 2011年第6期329-332,共4页
目的探讨pEGFP-ING4对裸鼠体内人U87细胞移植瘤生长及对肿瘤血管生成的影响。方法将成功构建的18只人U87细胞裸鼠皮下移植瘤模型,随机分为pEGFP-ING4和pEGFP-C2转染组及PBS空白对照组3组,测量各组肿瘤的体积变化,荧光显微镜观察转染瘤... 目的探讨pEGFP-ING4对裸鼠体内人U87细胞移植瘤生长及对肿瘤血管生成的影响。方法将成功构建的18只人U87细胞裸鼠皮下移植瘤模型,随机分为pEGFP-ING4和pEGFP-C2转染组及PBS空白对照组3组,测量各组肿瘤的体积变化,荧光显微镜观察转染瘤体内绿色荧光蛋白(green fluorescent protein,GFP)的表达情况,免疫组织化学SABC法检测微血管密度(microvessel density,MVD)。结果荧光显微镜下pEGFP-ING4组和pEGFP-C2组均观察到GFP表达,接种后第21d、28d、35d各组皮下肿瘤体积(mm3)为:PBS组(201.8±19.3,418.9±26.4,622.1±51.3),pEGFP-C2组(197.6±18.9,398.4±20.4,593.7±48.7),pEGFP-ING4组(138.9±8.4,198.7±21.5,293.2±31.6),肿瘤接种后在同一时间点内,pEGFP-ING4组肿瘤体积明显小于另外两组(P<0.05);MVD检测(个/mm2):PBS组(15.83±0.98),pEGFP-C2组(15.83±1.62),pEGFP-ING4组(4.17±1.17),与另外两组比较,pEGFP-ING4组MVD明显降低(P<0.01)。结论 ING4基因能够明显抑制人U87细胞裸鼠皮下移植瘤的生长,抑制胶质瘤血管的生成可能是其抗肿瘤的重要机理之一。 展开更多
关键词 生长抑制基因4血管生成瘤模型胶质
下载PDF
皮肤鳞状细胞癌小鼠模型建立与应用的研究进展 被引量:3
4
作者 姜伟乾 陶然 +2 位作者 许育健 张聚磊 韩岩 《解放军医学院学报》 CAS 北大核心 2023年第1期86-91,共6页
皮肤鳞状细胞癌(简称皮肤鳞癌)是常见的恶性肿瘤之一,建立相应的动物模型在发病机制研究、药物检测、临床前研究等方面具有重要作用。本文从皮肤鳞癌小鼠模型种类、建模方法、优缺点和应用领域等方面进行总结,以期为临床工作和科研探索... 皮肤鳞状细胞癌(简称皮肤鳞癌)是常见的恶性肿瘤之一,建立相应的动物模型在发病机制研究、药物检测、临床前研究等方面具有重要作用。本文从皮肤鳞癌小鼠模型种类、建模方法、优缺点和应用领域等方面进行总结,以期为临床工作和科研探索提供参考。 展开更多
关键词 皮肤鳞癌 小鼠模型 细胞系移植成瘤模型 诱导成瘤模型 基因工程成瘤模型 人源性肿移植成瘤模型
下载PDF
犬乳腺肿瘤裸鼠模型建立及其生长特性
5
作者 刘镇 饶家榕 +4 位作者 吕俊瑾 芶思 李惠珍 林辉 远立国 《畜牧兽医学报》 CAS CSCD 北大核心 2019年第4期861-869,共9页
为研究犬乳腺肿瘤发展的生物学特性及动态演变过程,建立犬乳腺肿瘤裸鼠模型,探讨其发生及发展规律。将绿色荧光蛋白(GFP)导入到犬乳腺肿瘤CHMm系和CHMp系细胞,将细胞悬液注射种植至裸鼠右侧第二对乳头处,建立裸鼠模型。通过活体成像技... 为研究犬乳腺肿瘤发展的生物学特性及动态演变过程,建立犬乳腺肿瘤裸鼠模型,探讨其发生及发展规律。将绿色荧光蛋白(GFP)导入到犬乳腺肿瘤CHMm系和CHMp系细胞,将细胞悬液注射种植至裸鼠右侧第二对乳头处,建立裸鼠模型。通过活体成像技术与病理学检测技术,研究不同时间段裸鼠体内肿瘤的动态变化。结果显示:倒置荧光显微镜下可观察到GFP标记的CHMm-GFP和CHMp-GFP细胞均发出稳定的绿色荧光信号,种植后第6天出现肉眼可见肿瘤。通过对接种后第25、35、45和60天荧光信号进行检测和病理检查,绘制肿瘤生长曲线和体重变化曲线;且在接种后第25天裸鼠活体成像时,CHMm-GFP系裸鼠体内荧光信号最强,而CHMp-GFP系则在第35天时,裸鼠体内荧光信号最强。在接种后第25天的离体脏器成像检测时,发现两组裸鼠各有1只淋巴结开始显现荧光信号;第35天3只裸鼠淋巴结内均显示荧光信号,其他脏器无荧光信号。第25天病理组织切片检测,两种细胞系分别有1只裸鼠的肿瘤转移至淋巴结内;在第35、45和60天时解剖裸鼠,发现肿瘤均已转移到淋巴结。建立了两个细胞系犬乳腺肿瘤裸鼠模型,两个细胞系在裸鼠体内不同时段呈现不同的生长特性,且均可转移,为深入研究乳腺肿瘤发生和发展规律提供参考。 展开更多
关键词 犬乳腺肿细胞 成瘤模型 裸鼠 生长特性
下载PDF
前列腺肿瘤干细胞在现实中并不存在
6
作者 CHEN MING 马振坤 李磊 《现代泌尿外科杂志》 CAS 2013年第5期495-497,共3页
肿瘤干细胞(cancer stem cell,CSC)模型提出:肿瘤是由一小群肿瘤干细胞演化而来的,并与不同分化程度的细胞共同构成肿瘤,其中肿瘤干细胞具有自我更新能力,并且在表观遗传影响下分化形成不同的非致瘤性细胞,最终形成肿瘤。因此... 肿瘤干细胞(cancer stem cell,CSC)模型提出:肿瘤是由一小群肿瘤干细胞演化而来的,并与不同分化程度的细胞共同构成肿瘤,其中肿瘤干细胞具有自我更新能力,并且在表观遗传影响下分化形成不同的非致瘤性细胞,最终形成肿瘤。因此,鉴定并描述这些为数极少的肿瘤干细胞对于治疗此类肿瘤非常关键。 展开更多
关键词 发生 成瘤模型 干细胞 前列腺
下载PDF
前列腺肿瘤干细胞是真实存在的
7
作者 LEE SOO OK 马振坤 李磊 《现代泌尿外科杂志》 CAS 2013年第5期497-499,共3页
前列腺(包括正常组织和肿瘤)干细胞虽然无法像胚胎干细胞或间充质干细胞那样分化为其他类型的细胞,但其可分化为前列腺管腔上皮细胞,并具有向神经内分泌细胞分化的潜能。
关键词 发生 成瘤模型 干细胞 前列腺
下载PDF
Overview of the Black Garlic Movement in the Fields of Research and Marketing 被引量:2
8
作者 Jin-Ichi Sasaki 《Journal of Life Sciences》 2015年第2期65-74,共10页
Newly developed black garlic had made a sensational debut with a strong anti-tumor potency proved by the mouse tumor model in 2006 from our laboratory. At that time few researches on it have been conducted due to less... Newly developed black garlic had made a sensational debut with a strong anti-tumor potency proved by the mouse tumor model in 2006 from our laboratory. At that time few researches on it have been conducted due to less popularity of the products even among the researching field. Since then some of the bio-functional works of the black garlic gradually appeared along with gaining of its popularity. Representative bio-activities reported up to now are: (1) enhancement of anti-tumor potency in the mouse tumor model; (2) immune system enforcement, and suppressive act against allergic symptoms caused by decreasing IL-4 cytokine production; (3) bacteria killing potency; (4) anti-oxidant activity; (5) reduction of carcinogenic potency; (6) lowering cholesterol level and preventive work against obesity; (7) controlling high blood pressure; (8) beneficial effect against diabetics; (9) regenerative effect to the burned skin (Clinical study case) et al. On the black garlic business (marketing), the Aomori Black Garlic Union (Association) had been established in Aomori Prefecture to offer the citizen high quality, high safety and high security black garlic (products) aiming at contribution for health improvement. All union members are now exerting themselves to the most to attain the high quality production of the black garlic. The quality proving certification seal will be issued to the products that passed the quality approval test by the third party inspections to place it on the their products. This system is now effectively working to guarantee the garlic quality and differentiate the Union member's products from others at the markets. 展开更多
关键词 Black garlic anti-tumor potency anti-oxidant activity anti-bacterial act black garlic union quality approval test.
下载PDF
Expressions of MVD, VEGF, Ki67 in Residual Prostate Cancer after Cryoablation 被引量:2
9
作者 Yong LI Zhi GUO +1 位作者 Yan-ping HAN Xiu-ying GUO 《Clinical oncology and cancer researeh》 CAS CSCD 2011年第1期27-32,共6页
OBJECTIVE To analyze the effects of cryoablation on the mice bearing Rm-I prostate cancer through detecting tumor angiogenesis and cancer cell proliferation in the mice after cryoablation, and to explore the effects o... OBJECTIVE To analyze the effects of cryoablation on the mice bearing Rm-I prostate cancer through detecting tumor angiogenesis and cancer cell proliferation in the mice after cryoablation, and to explore the effects of cryoablation on vascular endothelium growth factor (VEGF), Ki67 protein expression and microvessel density (MVD) in the mice bearing prostate cancer. METHODS Sixty Rm-1 mouse models of prostate cancer were established. Experimental mice were randomized into 2 groups: the cryoablation group (n = 30) and the control group (n = 30). After file therap)4 tumor tissues of the mice in group A and B were obtained at day 0 (without cryoablation), 1st, 3rd, 5th, 7th, 14th day, respectivelj6 after cryoablation, and the expressions of MVD, VEGF and Ki67 proteins were detected at the same time points. RESULTS The expressions of MVD, VEGF and Ki67 proteins in group A were decreased. The lowest values of the factors were detected on the 3rd day after cryoablation, and increased slowly after that. The expressions of MVD, VEGF and Ki67 proteins in the control group were not changed. Significant changes of the expressions of MVD, VEGF and Ki67 proteins in the group A were found at different time points. Correlation analysis suggested a positive correlation between the expressions of VEGF and MVD proteins (r = 0.8793), a positive correlation between the expressions of Ki67 and MVD proteins (r = 0.7614), and a positive correlation between the expressions of VEGF and ki67 proteins (r = 0.6921). CONCLUSION After argon-helium cryoablation treatment for the mice bearing prostate cancer, the expressions of MVD, VEGF and Ki67 proteins in local tumor were reduced on the 1st day. The lowest values of the factors were detected on the 3rd day after cryoablation, and then increased after that. Cryoablation combined with other modalities of treatment may effectively improve the treatment effects of cryoablation for prostate cancer. 展开更多
关键词 CRYOABLATION prostate cancer MVD VEGF Ki67.
下载PDF
Multifunctional FeCo-Graphitic Carbon Nanocrystals for Combined Imaging, Drug Delivery and Tumor-Specific Photothermal Therapy in Mice 被引量:4
10
作者 Sarah P. Sherlock Hongjie Dai 《Nano Research》 SCIE EI CAS CSCD 2011年第12期1248-1260,共13页
Ultrasmall FeCo-graphitic carbon shell nanocrystals (FeCo/GC) are promising multifunctional materials capable of highly efficient drug delivery in vitro and magnetic resonance imaging in vivo. In this work, we demon... Ultrasmall FeCo-graphitic carbon shell nanocrystals (FeCo/GC) are promising multifunctional materials capable of highly efficient drug delivery in vitro and magnetic resonance imaging in vivo. In this work, we demonstrate the use of FeCo/GC for highly effective cancer therapy through combined drug delivery, tumor-selective near-infrared photothermal therapy, and cancer imaging of a 4T1 syngeneic breast cancer model. The graphitic carbon shell of the ~4 nm FeCo/GC readily loads doxorubicin (DOX) via π-π stacking and absorbs near-infrared light giving photothermal heating. When used for cancer treatment, intravenously administrated FeCo/GC-DOX led to complete tumor regression in 45% of mice when combined with 20 min of near-infrared laser irradiation selectively heating the tumor to 43-45 ℃. In addition, the use of FeCo/GC-DOX results in reduced systemic toxicity compared with free DOX and appears to be safe in mice monitored for over 1 yr. FeCo/GC-DOX is shown to be a highly integrated nanoparticle system for synergistic cancer therapy leading to tumor regression of a highly aggressive tumor model. 展开更多
关键词 NANOCRYSTALS photothermal therapy DOXORUBICIN HYPERTHERMIA magnetic resonance imaging
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部