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表面标志

表面标志的相关文献在1989年到2022年内共计111篇,主要集中在基础医学、肿瘤学、临床医学 等领域,其中期刊论文77篇、会议论文2篇、专利文献229956篇;相关期刊66种,包括山东医科大学学报:社会科学版、检验医学教育、生物技术通报等; 相关会议2种,包括2010广州-东莞首届国际小型猪学术论坛、第一届国际肿瘤干细胞学术会议等;表面标志的相关文献由333位作者贡献,包括唐小千、战文斌、邢婧等。

表面标志—发文量

期刊论文>

论文:77 占比:0.03%

会议论文>

论文:2 占比:0.00%

专利文献>

论文:229956 占比:99.97%

总计:230035篇

表面标志—发文趋势图

表面标志

-研究学者

  • 唐小千
  • 战文斌
  • 邢婧
  • 绳秀珍
  • 田洪飞
  • 凯文·托德·巴勒姆
  • 安德鲁·欧文·麦克劳德
  • 迟恒
  • 周忠海
  • 姜晓宇
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 韩强; 张志刚; 刘坤; 朱贤兑; 金媛媛; 张志斐; 杨兆勇
    • 摘要: 目的研究脐血单个核细胞来源NK细胞的培养方法及其对不同类型肿瘤细胞的杀伤活性。方法自脐静脉消毒后全封闭采集脐血,肝素抗凝,分离单个核细胞,用NK细胞培养基培养14 d,流式细胞仪检测其表面标志,并使用RTCA实时无标记细胞分析技术检测细胞增殖曲线,观察NK效应细胞按效靶比1:1、5:1与10:1对肿瘤细胞的杀伤作用。结果培养14 d的脐血单个核细胞,细胞总数扩增294倍,其中NK细胞扩增5580倍。NK细胞CD3^(-)CD56^(+)阳性率为97.93%,与杀伤功能相关的重要分子CD16、NKG2D、NKp30、NKp44的表达阳性率均在95%以上。对A549肺癌细胞株作用6 h的杀伤活性,在1:1~10:1效靶比范围内,随着效靶比增加,杀伤活性从(78.16±2.41)%逐渐增强到(95.71±3.21)%;并且在效靶比1:1的情况下,随着作用时间从6 h延长到24 h,杀伤活性也从(78.16±2.41)%逐渐增强到(96.33±2.15)%。结论建立了无需分选细胞、无需滋养层细胞、操作简单、通用性强的脐血NK细胞培养方法,获得的NK细胞纯度高,对肿瘤细胞的杀伤作用强。
    • 金洵; 丁曙晴; 时飞跃; 王玲玲; 任军; 吴正参
    • 摘要: 目的 探寻可供临床和教学参考的八髎穴骨度折量定位方法.方法 对南京医科大学附属南京医院2016年1月至6月的100例俯卧位盆腔CT片进行回顾性分析,以5 mm 层厚连续横断面扫描,建立3D 图像.测量 L5棘突下至尾骨尖、L5棘突下至骶管裂孔、L5棘突下至髂后上棘、L5棘突下至八髎穴、后正中线至八髎穴、后正中线至髂后上棘等距离.结果 ①设立骶部骨度表,得到4个骶部折量寸:即 L5棘突下至尾骨尖约6寸,L5棘突下至骶管裂孔约3寸,L5棘突下至髂后上棘的垂直距离约1寸,髂后上棘至后正中线约2寸.②根据骶部骨度分寸,八髎穴可定位如下:上髎位于后正中线旁开1.1寸,L5棘突下1寸;次髎位于后正中线旁开1寸,L5棘突下1.7寸;中髎位于后正中线旁开0.9寸,L5棘突下2.5寸;下髎位于后正中线旁开0.9寸,L5棘突下3.5寸.③根据骶部体表标志,八髎穴可定位如下:从骶部纵向距离观察,上髎穴约平髂后上棘,次髎穴约平 L5棘突下和骶管裂孔连线的中点,中髎穴约平 L5棘突下和尾骨尖连线的中点,下髎穴约平骶管裂孔;从骶部横向距离观察,次髎穴位于髂后上棘至后正中线距离的一半,八髎穴呈"倒八字"型排列,其连线与后正中线的夹角约25°.结论 以表面标志为基础,用比例关系和骨度分寸来定位八髎穴,具有临床参考价值.%OBJECTIVE To explore Baliao points location method by proportional bone measurement and provide reference for clinic and teaching.METHODS 100 prone pelvic CT images performed from January 2016 to June in Nanjing Hospital Af-filiated to Nanjing Medical University was analyzed retrospectively.Three-D images were established by continuous cross sec-tion scanning with 5 mm layer thickness.The distances of L5 spinous process to coccyx tip,L5 spinous process to sacral hia-tus,L5 spinous process to the posterior superior iliac spine,L5 spinous process to Baliao points,posterior midline to Baliao points and posterior midline to the posterior superior iliac spine were measured.RESULTS ①Four sacral bone measurements were obtained through establishing sacral bone scale,they were about 6 cun from L5 spinous process to coccyx tip,3 cun from L5 spinous process to sacral hiatus,about 1 cun from L5 spinous process to the posterior superior iliac spine vertically,about 2 cun from posterior superior iliac spine to posterior midline.②Baliao points could be located as follows on the basis of sacral bone scale:Shangliao(BL 3 1)was located in 1.1 cun next to posterior midline,1 cun below L5 spinous process;Ciliao(BL 32)was located in 1 cun next to posterior midline,1.7 cun below L5 spinous process;Zhongliao(BL 33)was located in 0.9 cun next to posterior midline,2.5 cun below L5 spinous process;Xialiao(BL 34)was located in 0.9 cun next to posterior mid-line,3.5 cun below L5 spinous process.③Baliao points could be located as follows according to body surface signs of partes sacralis:from the longitudinal distance of partes sacralis,Shangliao(BL 3 1)was parallel with the posterior superior iliac spine;Ciliao(BL 32)was parallel with the midpoint of L5 spinous process and sacral hiatus;Zhongliao(BL 33)was parallel with the midpoint of L5 spinous process and coccygeal tip;Xialiao(BL 34)was parallel with the sacral hiatu.From the trans-verse distance of partes sacralis,Ciliao(BL 32)was located in the midpoint of the posterior superior iliac spine and posterior midline.Baliao points were lined as reversal"八",and the angle between the connection of Baliao points and the posterior mid-line was 25 degrees.But the body surface signs and bone standard could only provide the most likely location for Baliao,so Baliao points location could be confirmed through combining point identification and touching the hollow.CONCLUSIONS On the basis of body surface signs,transforming"measurement"to"standard",and locating Baliao points according to proportion-al relationship and bone degree,which are worthy of clinical reference.
    • 王福平; 张锋; 赵同标
    • 摘要: 为建立高效简便的人尿源干细胞(Human urine-derived stem cells,hUSCs)培养和鉴定体系,在无菌条件下收集青年志愿者的尿液分离培养人尿源干细胞,然后用克隆计数、形态观察、核型分析、生长曲线测定、表面标志物检测、成骨和成脂分化等方法对hUSCs进行鉴定.人尿源干细胞克隆具有纤维样、鹅卵石样和丝连样三种形态.第二代hUSCs高表达抗原CD44、CD73和CD90,阳性率均高于99.6%;而低表达抗原CD34和CD45,阳性率均低于0.3%.第六代hUSCs高表达抗原CD44和CD73,阳性率均高于99.5%;而低表达抗原CD34和CD45,阳性率均低于0.5%.第六代hUSCs仍然具有很强的增殖能力和稳定的核型,并经诱导可分化为骨细胞和脂肪细胞.该研究建立了高效简便的hUSCs培养和鉴定体系.
    • 范文帅; 阎作勤
    • 摘要: 成体间充质干细胞的多向分化潜能为再生医学领域的组织修复提供了新的希望.但是,间充质干细胞表面标志的表达存在一定差异,这些表面标志影响间充质干细胞的分化能力和分化方向.因此,研究成体间充质干细胞的表面标志,选择表面标志的合理搭配,有利于促进组织的修复.%The multipotential of adult mesenchymal stem cell (MSC) provides a promising therapeutic modality for tissue repair in regenerative medicine.However,MSCs are heterogeneous in expression of surface marker which has an effect on differentiative capacity and differentation direction of MSC.It is worthwhile to study the role of surface marker on adult MSC and select appropriate cells for better tissue regeneration.
    • 尹荟菁; 邓炯
    • 摘要: 癌干细胞是目前癌症研究的热点之一。肺癌干细胞与正常肺干细胞有许多共同之处,包括自我更新能力和多分化潜能。许多癌干细胞分子标志为肺癌干细胞所共有,如CD133、CD44、乙醛脱氢酶(aldehyde dehydrogenase, ALDH)以及ATP结合转运蛋白G超家族成员2(ATP-binding cassette sub-family G member 2, ABCG2)。肺癌干细胞的扩增与作用不仅受胚胎干细胞途径如Notch、Hedgehog和Wnt调控,也受肿瘤信号途径如表皮生长因子受体(epidermal growth factor receptor, EGFR)、信号传导转录激活因子3(signal transducer and activator of transcription 3, STAT3)和磷脂酰肌醇3激酶(phosphatidylinositol 3 kinase, PI3K)等的调控。由于癌干细胞在肿瘤复发、转移和耐药性等方面发挥着重要作用,揭示肺癌干细胞与正常干细胞的区别,鉴定并靶向癌干细胞特异性表面标志物及其介导的信号通路,将有望改善肺癌治疗效果和提高患者生存率。%Cancer stem cells (CSCs) are emerging as a hot topic for cancer research. Lung CSCs share many char-acteristics with normal lung stem cells (SCs), including self-renewal and multi-potency for differentiation. Many molecular markers expressed in various types of CSCs were also found in lung CSCs, such as CD133, CD44, aldehyde dehydrogenase (ALDH) and ATP-binding cassette sub-family G member 2 (ABCG2). Similarly, proliferation and expansion of lung CSCs are regulated not only by signal transduction pathways functioning in normal lung SCs, such as Notch, Hedgehog and Wnt path-ways, but also by those acting in tumor cells, such as epidermal growth factor receptor (EGFR), signal transducer and activator of transcription 3 (STAT3) and phosphatidylinositol 3 kinase (PI3K) pathways. As CSC plays an critical role in tumor recur-rence, metastasis and drug-resistance, understanding the difference between lung CSCs and normal lung SCs, identifying and targeting CSC markers or related signaling pathways may increase the effcacy of therapy on lung cancer and improved survival of lung cancer patients.
    • 李佳; 安恒庆; 王峰; 王文光; 帕洛克·迪力木拉提; 王玉杰; 木拉提·热夏提
    • 摘要: BACKGROUND:Hair folicle stem cels have been confirmed to have stronger proliferative ability than interfolicular epidermal stem cels, which have been an issue of concern in seed cel research. OBJECTIVE:To compare the biological characteristics of rat hair folicle stem cels cultured by tissue explant method and enzymatic digestion method. METHODS: Under stereomicroscope, hair folicles were isolated from the rat whiskers, and then tissue explant method and two-step enzymatic digestion method were employed to culture hair folicle stem cels. Cels were purified using repeated differential adhesion method, and cel growth and morphology were observed periodicaly. Flow cytometry was used to detect the expression of CD34 and β1 integrin in passage 3 hair folicle stem cels. RESULTS AND CONCLUSION:Cels cultured by two-step enzymatic digestion method grew faster with more amount than those cultured by tissue explants method. Flow cytometry showed that the expressions of PE-CD34 and FITC-β1 were (39.52±19.57)% and (93.46±4.73)% for the two-step enzymatic digestion group, and (19.20±11.53)% and (363.57±14.42)% for the tissue explant method, respectively. There was a significant difference between the two methods. In conclusion, these two methods are able to culture high-activity hair folicle stem cels, which can be chosen according to different experimental requirements.%背景:研究证实毛囊干细胞比毛囊间表皮干细胞更有增生能力,近年来受到广泛关注,成为种子细胞的研究热点。目的:比较组织块法和两步酶法培养大鼠毛囊干细胞的生物学特性。方法:体式显微镜下分离大鼠触须部的毛囊,分别用组织块法和两步酶法培养毛囊干细胞,利用反复差速贴壁法纯化细胞,定期观察细胞生长状况及形态,流式细胞仪检测第3代毛囊干细胞CD34、β1整合素的表达。结果与结论:两步酶法获得的细胞生长速度快,获得的细胞量多,而组织块法获得的细胞生长速度较慢,获得的细胞量也少。流式细胞仪分析显示酶消化法培养组 PE-CD34、FITC-β1整合素的表达分别为(39.52±19.57)%和(93.46±4.73)%,组织块法培养组相应为(19.20±11.53)%和(363.57±14.42)%,两组间差异有显著性意义(P <0.05)。总的来说,两种方法均能培养出实验所需毛囊干细胞,可根据不同实验需求选择恰当的培养方法。
    • 李佳; 安恒庆; 王峰; 王文光; 帕洛克·迪力木拉提; 王玉杰; 木拉提·热夏提
    • 摘要: 背景:研究证实毛囊干细胞比毛囊间表皮干细胞更有增生能力,近年来受到广泛关注,成为种子细胞的研究热点。目的:比较组织块法和两步酶法培养大鼠毛囊干细胞的生物学特性。方法:体式显微镜下分离大鼠触须部的毛囊,分别用组织块法和两步酶法培养毛囊干细胞,利用反复差速贴壁法纯化细胞,定期观察细胞生长状况及形态,流式细胞仪检测第3代毛囊干细胞CD34、β1整合素的表达。结果与结论:两步酶法获得的细胞生长速度快,获得的细胞量多,而组织块法获得的细胞生长速度较慢,获得的细胞量也少。流式细胞仪分析显示酶消化法培养组PE-CD34、FITC-β1整合素的表达分别为(39.52±19.57)%和(93.46±4.73)%,组织块法培养组相应为(19.20±11.53)%和(363.57±14.42)%,两组间差异有显著性意义(P〈0.05)。总的来说,两种方法均能培养出实验所需毛囊干细胞,可根据不同实验需求选择恰当的培养方法。
    • 张宏涛
    • 摘要: 卵巢癌是妇科常见恶性肿瘤之一,其初次治疗疗效好,但后期易复发,目前研究表明这与卵巢癌干细胞有着密切关系,卵巢癌干细胞可耐受常规化疗,在肿瘤实体被消灭后能形成新的肿瘤,引起复发,不同表面标记的卵巢癌干细胞表现出不同的特性,本文着重对卵巢癌干细胞的治疗进行综述。
    • 吴澄; 钟丰文; 罗列
    • 摘要: 目的:研究人肺癌干细胞的表面特征.方法:将肺癌细胞株制成单细胞悬液,接种到96孔板,每孔只有一个细胞,观察每孔细胞的存活,增殖以及分裂情况,将接种后能够持续分裂增殖的肿瘤细胞(实验组)和常规培养的肿瘤细胞(对照组)分别进行CD133细胞免疫组化,比较两组细胞的阳性表达率,将两组细胞按不同浓度梯度接种裸鼠,分析两组细胞的成瘤能力.结果:(1)仅有4.11%的肿瘤细胞具有增殖形成细胞克隆的能力.(2)单细胞体外培养具有增殖能力的细胞CD133阳性率明显高于常规培养的肿瘤细胞.(3)体外能够持续分裂的细胞成瘤能力强于常规培养的肿瘤细胞.结论:CD133可能是人肺癌干细胞的表面标志.
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