CN109486749A - 鹿茸细胞无血清培养法 - Google Patents
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Abstract
当代研究鹿茸含有近四十种有益物质,特别具有多肽、多胺、多醣,能增加核酸蛋白质合成,修复机体细胞和细胞再生,抑制肿瘤细胞,增加免疫、抗病毒,影响生命全程。但以鹿茸用药功效不显,提取成分困难,成本高,失去活性有药物残留。鹿茸细胞是鹿茸的最小生命单位,研究证明鹿茸细胞中多胺等活性物质多于鹿茸三倍,便于大量生产提取。按生物制药要求研究鹿茸细胞取得成功,获ZL03159604.5号发明专利。进而创新了鹿茸细胞无血清培养法,排除了血清有害成分及耐高温疯牛病毒的风险。建立了鹿茸细胞无血清培养基及取样工具,可从茸体上多点取材培养不同的前体细胞株(系),组建细胞库,满足工业化生产鹿茸细胞研制新型药物的根本须求。
Description
鹿茸药用始于我国,已有2千余年药用史。在马王堆出土的汉墓皂书中证实鹿茸治疗疾病、蛇咬等。长期视为名贵药材,用于强身健体,益气补阳,为亚洲各国特别在韩国所喜用。
药用鹿茸是梅花鹿、马鹿在额骨上生长的、具有茸毛幼嫩时期的、骨化前的鹿角。每年规律性生长脱落一次,生长快速每日能增长1-2公分超过癌细胞。幼鹿生后第二年开始生角,受日照、紫外线温度、生存环境影响体内性激素消涨,启动骨膜干细胞开始生长鹿茸,由鹿茸干细胞分化为鹿茸前体细胞,形成鹿茸组织神经血管、肋软骨、肋骨组织,成为鹿茸器官。之后,外部皮肤茸毛脱落,钙化后变为鹿的坚硬“武器”,次年春脱落,变成家庭装饰品,完成了一个生长周期。
这种特有的生物学现象从古至今受到关注。我们为了探寻奥秘,研究了鹿茸细胞体外培养取得成功,获得了鹿茸组织细胞培养法ZL03159604.5号发明专利。
鹿茸是鹿的第二性征,在生长过程中进行细胞分化,也是细胞组织功能活性最佳阶段,含有丰富的活性物质。当鹿茸钙化脱皮后形成坚硬的鹿角,活性物质则全部消失。大量试验表明,从鹿茸中提取多肽等活性物质成本高、数量低、有药物残留破坏活性。鹿茸细胞药理药化研究表明,重要的多肽等活性物质含量超鹿茸三倍以上,并且易于从细胞中提取药物单体成分。以大规模细胞培养生产可获得多种活性成分,提供研制生产高浓度、高含量特效新药,进行中药西治。对60岁左右人群补充鹿茸多肽、多胺等活性物质增加全身细胞复制代数,延长生命高龄百岁以上。提供特效新药治疗老年痴呆症、彻底治疗高血糖、高血压、高血脂,治疗预防癌症。
利用鹿茸细胞进行生物制药。鹿茸细胞无血清培养法排除由牛血清所带来的有害成分及损害,防止耐高温疯牛病病毒所能造成的风险。为此我们创立了鹿茸细胞无血清培养法。本培养法为鹿茸细胞在体外培养,在无血清成分的液态环境中能够快速生长,适用鹿茸干细胞以及分化的前体细胞培养。可应用于鹿茸细胞贴壁静止培养、转瓶旋转培养、悬浮培养,适用于工业化鹿茸细胞生产,为分离提取药化单体成分,制备新药奠定了基础。
鹿茸细胞无血清培养法的培养基配方组成及配制:
配制精确称量,依次加入流液,滤过除菌,通过无菌测试、质量检测、低温保存。
鹿茸细胞培养需要不断优化。鹿茸细胞培养实现大规模工业化生产单体药化成分,需要多次培养原代细胞,然后建立细胞株、设立种子库,从天然鹿茸提取选优淘劣,为工业化生产提供优良种细胞。鹿茸是实体组织取材困难,在实行无血清培养技术前,从鹿茸组织上采取原始材料,切割小块组织,施用外科刀对刃切割,手工操作难以均衡取样,取量少,生长速度不一致。现今我们裁外科刀对刀功取法改进,创新为平板细齿锉刀法。能从茸体上任何部位进行平锉,大量锉割组织取样,获得细小2mm立方组织块,用PBS离心清洗,达到全部去除血清成分、红细胞等,种入培养瓶,使均匀分布于生长液中同步大量生长原代细胞,并且缩短了培养时间。可从茸体任何部位除茸皮外,均可取样培养原代细胞。鹿茸上中下段细胞分化程度不同,所能获得的活性生长成分的分子质量也不同,因所含活性因子差异而获得不同的药物。这是使用新工具的技术特征。
鹿茸细胞无血清培养法实例:
进行鹿茸细胞贴壁培养、转瓶培养及悬浮培养为生物制药分离转化鹿茸多肽、多胺等活性物质而行使鹿茸细胞工业化无血清培养。
1、优选临床检查及结核病、布氏杆菌病血清学检疫。从中选择3-7岁阴性个体、产茸量高的健壮公鹿。
2、麻醉割取鹿茸,在半小时内送入实验室取材,茸表灭菌消毒。
3、以专用工具锯锉鹿茸组织加入PBS清洗离心,取组织块种入培养瓶,加入无血清专用培养基。
4、使组织块均匀分布在瓶壁上,在37℃中不可移动静止培养5天,镜检、纪录、照相。
5、约8-10天对大量生长的贴壁细胞进行消化培养。
6、培养8-10天消化收获原代培养细胞,编号冻存。
7、原代细胞传代到15代,之后每7天传代一次,直至形成细胞系。
8、传代达到50次,在正常状态可经过检测符合各种指标即建立细胞株。
9、建立细胞株的工作是长期系统性工作。
10、对种子细胞库进行常态专项管理。鹿茸细胞无血清培养法为鹿茸细胞静止培养、旋转培养、悬浮培养,为工业化生产奠定了坚实基础。
附图说明:附图为本申请单板多齿锉图。
锉刀齿高0.3、宽0.2、长0.2;
锉齿10X24排;
平板厚度0.2公分。
Claims (2)
1.鹿茸细胞无血清培养,其培养基组分:
2.鹿茸取材平板不锈钢锉刀附图:
锉刀齿高0.3、宽0.2、长0.2;
锉齿10X24排;
平板厚度0.2公分。
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