Results 11 to 20 of about 261,154 (148)

递呈BAC5 单抗识别位点的M13噬菌体克隆系的建立 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2000
【目的】获得可递呈抗低分化和未分化癌细胞单克隆抗体(BAC5 单抗)抗原表位的M13噬菌体克隆系。【方法】以 BAC5 单抗为靶抗体, 对由M13噬菌体构建的随机12 肽文库进行生物淘洗。用抗体竞争方法从阳性克隆中选出与BAC5 单抗结 合率较高的克隆系。通过ELISA 方法检测BAC5 单抗对上述克隆的选择性识别。【结果】经过3 轮淘洗, 获得的阳性克隆率为 77 %(35/ 45)。来自C2、C17 和C29 号克隆的噬菌体对外加BAC5 单抗的结合率分别为71.6 %、49.4 %和64.0%
肖锡宾   +5 more
doaj   +1 more source

尖吻蝮蛇蛇毒纤溶因子单克隆抗体的制备 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1999
目的: 制备从尖吻蝮蛇蛇毒中分离的纤溶因子的单克隆抗体, 为克隆基因提供特异性的探针。方法: 将纤溶因 子免疫 Balb/C 小鼠,取脾细胞与 SP 2/0 骨髓瘤细胞融合, 筛选稳定分泌抗体的细胞株。采用血纤维蛋白平板法,观察单克隆 抗体能否抑制纤溶因子的纤溶作用。结果: 获得 2 株稳定分泌单克隆抗体的细胞株。 Western 印迹显示该单克隆抗体能特异 地与纤溶因子结合,与其它蛋白无交叉反应, 此外,这 2株单克隆抗体具有抑制纤溶因子溶解人血纤维蛋白的作用。结论: 这 2 ...
邱鹏新 黎明涛 苏兴文 陈家树 颜光美
doaj   +1 more source

人BLyS 基因克隆、表达和抗人BLyS 单克隆抗体的制备 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2002
【目的】研制抗人BLyS 单克隆抗体, 以进一步探讨人BLyS 与自身免疫性疾病的关系。【方法】将人BLy S 基因 克隆到融合蛋白原核表达载体pGEX-4T-1 中, 构建重组质粒pGEX-4T-1/hBLyS , 用此重组质粒转化大肠杆菌BL21, 加IPTG 诱导大肠杆菌表达GST-hBLy S 融合蛋白, 用此融合蛋白免疫BALB/c 鼠, 取鼠脾细胞与骨髓瘤细胞融合, 用ELISA 法筛选阳 性克隆, 用免疫印迹和流式细胞仪进一步鉴定抗体的特异性。【结果】重组质粒双酶切结果和DNA ...
张志方
doaj   +1 more source

日本血吸虫成虫抗原基因的克隆和序列分析 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1997
摘 要 本实验在用感染兔血清和单克隆抗体对日本血吸虫(大陆株)成虫cDNA 表达文库进行筛选的基 础上, 对筛选出的阳性克隆插入片段DNA 进行了亚克隆和序列分析。
doaj   +1 more source

MRSA-PBP2a单克隆抗体乳胶凝集检测法的建立

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2008
【目的】 应用抗PBP2a单克隆抗体,以化学交联法致敏羧化聚苯乙烯乳胶,建立快速检测MRSA-PBP2a的乳胶凝集法?【方法】 以辛酸-硫酸铵法纯化PBP2a单克隆抗体,将纯化后单克隆抗体和羧化乳胶经碳化二亚胺(EDC)共价偶联,并对偶联条件(偶联抗体浓度?乳胶浓度?偶联时间和偶联缓冲液)进行探索和优化,建立检测PBP2a的乳胶凝集法?【结果】 140 mg/L的抗体浓度与15 g/L的羧化聚苯乙烯乳胶,在pH 5.8缓冲液中偶联8 h后有较好的凝集效果和偶联效率,所建立的乳胶凝集法敏感性和特异性良好?【
doaj   +1 more source

抗组氨酰-tRNA合成酶单克隆抗体的制备及初步鉴定

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2008
【目的】 制备均一性和特异性高的抗组氨酰-tRNA 合成酶抗体,为研究皮肌炎和多肌炎的检测提供方法,为制备检测试剂盒提供原料?【方法】 采用常规融合和间接ELISA检测法,获取杂交瘤细胞株;Protein G Sepharose 4FF和Sephadex G50结合对含有单克隆抗体的腹水进行纯化;SDS-PAGA电泳技术进行单克隆抗体的鉴定?【结果】 筛选获得了2株稳定分泌阳性抗体的杂交瘤细胞株,分别命名为W001和W002;杂交瘤细胞克隆后,100%的检测孔保持了分泌抗组氨酰-tRNA合成酶抗体的能力;
doaj   +1 more source

Fatty acid β‐oxidation and mitochondrial fusion are involved in cardiac microvascular endothelial cell protection induced by glucagon receptor antagonism in diabetic mice 脂肪酸β‐氧化和线粒体融合参与胰高血糖素受体拮抗剂对糖尿病小鼠心脏微血管内皮细胞的保护作用

open access: yesJournal of Diabetes, Volume 15, Issue 12, Page 1081-1094, December 2023., 2023
Highlights Glucagon receptor (GCGR) monoclonal antibody (mAb) improves cardiac function and attenuates microvascular damage in db/db mice. GCGR mAb ameliorates the oxidative stress of cardiac microvascular endothelial cells in diabetic mice. GCGR mAb counteracts the diabetes‐induced upregulation of carnitine palmitoyltransferase 1B, optic atrophy type ...
Peng Wang   +6 more
wiley   +1 more source

Cytokine transcriptome profiling in acute experimental canine atopic dermatitis skin lesions after IL‐31 inhibition with lokivetmab

open access: yesVeterinary Dermatology, Volume 34, Issue 4, Page 327-338, August 2023., 2023
Background – The caninised monoclonal antibody lokivetmab (LKV), directed at interleukin (IL)‐31, is very effective at controlling pruritus in most dogs with atopic dermatitis (AD). However, evidence exists that IL‐31 is not required for the induction of acute allergic skin inflammation, which might explain why this treatment is less efficacious in ...
Chie Tamamoto‐Mochizuki   +4 more
wiley   +1 more source

Factors that shape large‐scale gradients in clonality

open access: yesJournal of Biogeography, Volume 50, Issue 5, Page 827-837, May 2023., 2023
Abstract Aim Many plant species reproduce clonally. However, ecologists still have much to learn about the factors that shape large‐scale patterns in plant clonal growth and reproduction, especially in the southern hemisphere. We addressed this knowledge gap by quantifying relationships between reproductive mode and a suite of plant characteristics and
Hongxiang Zhang   +4 more
wiley   +1 more source

A masked, randomised clinical trial evaluating the efficacy and safety of lokivetmab compared to saline control in client‐owned dogs with allergic dermatitis

open access: yesVeterinary Dermatology, Volume 32, Issue 5, Page 477-e131, October 2021., 2021
Background – Interleukin (IL)‐31 is an important mediator in canine atopic dermatitis (cAD) and also may be dysregulated in other allergic diseases. Hypothesis/Objectives – To demonstrate the efficacy and safety of lokivetmab (canine anti‐IL‐31 monoclonal antibody) for treatment of pruritus associated with allergic dermatitis in dogs.
Leen Van Brussel   +4 more
wiley   +1 more source

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