CN114276993A - 一种用于分离大鼠下丘脑弓状核神经元的方法 - Google Patents
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Abstract
本发明公开了一种用于分离大鼠下丘脑弓状核神经元的方法,包括找出下丘脑中弓状核神经元核团的差异表达最显著的若干个标志物;根据标志物在其他细胞群中的表达差异筛选出在弓状核区域中唯一显著高表达的标志物,分别为Gck、S100g、Six6和Sox14;采用流式细胞术分选下丘脑中含有Sox14、S100g、Gck和Six6这四个标志物的阳性细胞,所获得的阳性细胞群中弓状核神经元核团浓度比较高;本发明基于空间转录组技术,通过流式细胞术分选,从而实现弓状核神经元核团分离;本发明提供的下丘脑弓状核神经元核团的分离方法,无需养殖转基因大鼠,操作成本低并且对仪器和平台依赖度较低,适宜在科研单位中推广和普及。
Description
技术领域
本发明涉及生物医学技术领域,具体是一种用于分离大鼠下丘脑弓状核神经元的方法。
背景技术
神经元是构成神经系统结构的基本功能单位。中枢神经系统的神经元具有两种典型的组织结构形式,一种是层状结构,例如大脑皮质;另一种是核团结构,例如下丘脑。下丘脑是动物大脑进化中比较保守又高度异质性的一个区域,其内部神经元核团类型多样化,对内分泌,睡眠与昼夜节律,生殖与性行为以及饮食与能量平衡等都具有关键的调控作用。
下丘脑位于大脑腹面,丘脑下钩的下方,构成第三脑室的下壁,向下延伸与垂体柄相连。从解剖学上从前向后可分为三个区,视上部位于视交叉上方,由视上核和室旁核所组成;结节部位于漏斗后方;乳头部位于乳头体。其中弓状核位于内侧基底部,邻近第三脑室和正中隆起,是许多神经内分泌细胞聚集的区域,包括生长激素释放因子样神经元、β内啡肽样神经元、神经紧张素样神经元、P物质样神经元、神经肽Y样神经元、多巴胺神经元、促肾上腺皮质激素样神经元、γ-氨基丁酸样神经元等。弓状核在神经内分泌调节过程中处于重要地位,参与包括垂体功能、自主神经活动、镇痛和神经免疫等多个方面在内的调控作用。
下丘脑内部各神经元核团缺乏明显的组织学界限。目前对某种特定神经元进行科学研究主要集中在生理和细胞生物学层面,却无法有效地开展更多的分子生物学研究,就是因为缺乏一种能够精确分离下丘脑不同神经元核团的方法。人们利用转基因技术对某些特定标记物制备荧光融合蛋白,通过荧光来示踪神经元核团。但这种方法存在一定的假阳性,而且融合蛋白会影响标记物蛋白连接端的空间结构,存在破坏标记物正常功能的可能性,且转基因动物制备周期长、造价昂贵、后续需要不间断饲养和保种从而增加人力和财力成本,不能为一般科研单位所接受。
总而言之,目前缺乏一种可有效并精准分离下丘脑不同类型神经元核团的方法,且这种方法操作简单、花费不高、对仪器和平台依赖度较低,能在广大科研单位中所普及并接受。
发明内容
本发明的目的在于提供一种用于分离大鼠下丘脑弓状核神经元的方法,以解决上述背景技术中提出的问题;
为实现上述目的,本发明提供如下技术方案:一种用于分离大鼠下丘脑弓状核神经元的方法,所述方法包括如下步骤:
一种用于分离大鼠下丘脑弓状核神经元的方法,所述方法包括如下步骤:
步骤一、找出下丘脑中弓状核神经元核团的差异表达最显著的若干个标志物;
步骤二、根据标志物在其他细胞群中的表达差异筛选出在弓状核区域中唯一显著高表达的标志物,分别为Gck、S100g、Six6和Sox14;
标志物Gck如SEQUENCE LISTING ID NO.1所示的核苷酸序列;
标志物S100g如SEQUENCE LISTING ID NO.2所示的核苷酸序列;
标志物Six6如SEQUENCE LISTING ID NO.3所示的核苷酸序列;
标志物Sox14如SEQUENCE LISTING ID NO.4所示的核苷酸序列。
步骤三、采用流式细胞术分别分选下丘脑中Sox14、S100g、Gck和Six6这四个标志物的阳性细胞,即为弓状核神经元核团。
作为本发明的一种优选技术方案,上述步骤一的具体方法如下:
S11、取SD大鼠全脑切片,放置于载玻片的捕获区域上,固定和透化全脑切片,捕获区域捕获细胞释放的RNA;
S12、将载玻片上的细胞群降维聚类为14个细胞群,其中9号群在位置上与脑图谱定位的弓状核一致;找出9号细胞群中差异表达最显著的前9个标志物。
作为本发明的一种优选技术方案,上述步骤一中选出的标志物分别为Fezf1、Kiss1、Ghrh、Sox14、S100g、Ces1d、Gck、Crhr2和Six6。
作为本发明的一种优选技术方案,上述步骤二的具体方法如下:
S21、计算Fezf1、Kiss1、Ghrh、Sox14、S100g、Ces1d、Gck、Crhr2和Six6标志物在14个细胞群中的表达量;
S22、筛选出在9号细胞群内部唯一高表达的标志物,分别为Sox14、S100g、Gck和Six6。
与现有技术相比,本发明的有益效果是:
本发明基于空间转录组技术,通过下丘脑不同神经元核团中标志物表达的蛋白进行流式细胞术分选,从而实现弓状核神经元核团分离;本发明提供的下丘脑弓状核神经元核团的分离方法,操作简单,无需养殖转基因大鼠,操作成本低并且对仪器和平台依赖度较低,适宜在科研单位中推广和普及。
附图说明
图1为9个标志物在14个细胞群中的表达量的小提琴图;
图2为本发明中流式分选下丘脑中含有Sox14标志物的神经元细胞过程中游离的单细胞占比图;
图3为本发明中流式分选下丘脑含有Sox14标志物的神经元细胞过程中FSC/SSC结果图;
图4为本发明中流式分选下丘脑含有Sox14标志物的神经元细胞过程中FSC large细胞群进一步分选结果图;
图5为本发明中流式分选下丘脑中含有S100g标志物的神经元细胞过程中游离的单细胞占比图;
图6为本发明中流式分选下丘脑中含有S100g标志物的神经元细胞过程中选取活细胞的结果图;
图7为本发明中流式分选下丘脑中含有S100g标志物的神经元细胞过程中FSC/SSC结果图;
图8为本发明中流式分选下丘脑中含有S100g标志物的神经元细胞过程中FSClarge细胞群进一步分选结果图;
图9为本发明中流式分选下丘脑中含有Gck标志物的神经元细胞过程中游离的单细胞占比图;
图10为本发明中流式分选下丘脑中含有Gck标志物的神经元细胞过程中FSC/SSC结果图;
图11为本发明中流式分选下丘脑中含有Gck标志物的神经元细胞过程中FSClarge细胞群进一步分选结果图;
图12为本发明中流式分选下丘脑中含有Six6标志物的神经元细胞过程中游离的单细胞占比图;
图13为本发明中流式分选下丘脑中含有Six6标志物的神经元细胞过程中FSC/SSC结果图;
图14为本发明中流式分选下丘脑中含有Six6标志物的神经元细胞过程中FSClarge细胞群进一步分选结果图。
具体实施方式
为了使本领域的技术人员更好地理解本申请方案,下面将结合本申请实施例中的附图对本申请实施例中的技术方案进行清楚、完整的描述,显然,所描述的实施例仅仅是本申请一部分的实施例,而不是全部的实施例;基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动成果前提下所获得的所有其他实施例,都应当属于本申请保护的范围;
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合,下面将结合实施例来详细说明本申请。
实施例1
本发明提供了一种用于分离大鼠下丘脑弓状核神经元的方法,具体如下。
步骤1、找出下丘脑中弓状核神经元核团的差异表达最显著的若干个标志物;具体方法如下:
S11、取SD大鼠全脑切片,放置于载玻片的捕获区域上,固定和透化全脑切片,捕获区域上的探针捕获细胞释放的RNA;
S12、将载玻片上的细胞群降维聚类为14个细胞群,其中9号群在位置上与脑图谱定位的弓状核一致;找出9号细胞群中差异表达最显著的前9个标志物,分别为Fezf1、Kiss1、Ghrh、Sox14、S100g、Ces1d、Gck、Crhr2和Six6;图1是9个标志物在14个细胞群中的表达量的小提琴图;
步骤2、根据标志物在其他13个细胞群中的表达差异筛选出在弓状核区域中唯一显著高表达的标志物。
具体方法如下:
S21、计算Fezf1、Kiss1、Ghrh、Sox14、S100g、Ces1d、Gck、Crhr2和Six6标志物在14个细胞群中的表达量;
S22、筛选出在9号细胞群内部唯一高表达的标志物;结果如图1所示,分别为Gck、S100g、Six6和Sox14;
标志物Gck如SEQUENCE LISTING ID NO.1所示的核苷酸序列;
标志物S100g如SEQUENCE LISTING ID NO.2所示的核苷酸序列;
标志物Six6如SEQUENCE LISTING ID NO.3所示的核苷酸序列;
标志物Sox14如SEQUENCE LISTING ID NO.4所示的核苷酸序列。
步骤3、采用流式细胞术分选下丘脑含有Sox14标志物的神经元细胞,即为弓状核神经元核团,Sox14标志物表达的蛋白质位于神经元细胞的内部,Sox14标志物表达的蛋白质如SEQUENCE LISTING ID NO.8所示的核苷酸序列。具体方法如下:
S31、取出生后45天的SD大鼠的下丘脑30份,制备成单细胞悬液;将单细胞悬液放置于含10%胎牛血清、1%叠氮化钠的冰磷酸盐缓冲盐溶液中重悬至约5x 106细胞/mL;
S32、向每份重悬细胞液中添加30μL Sox14抗体,加入等体积的冰乙醇,在-20℃固定过夜,次日取出,以400g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬;再以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬,如此重复操作3次;
S33、向每份重悬细胞液中添加15μL抗兔FITC二抗(Abcam制造),在-20℃固定过夜,次日取出,以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬;再以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬,如此重复操作3次;
S34、首先采用FSCA/H设门去除步骤S33所得细胞重悬液中的黏连细胞,得到独立的单细胞,此步骤中单细胞收率为30.77%,如图2所示;然后使用FSA/SSA(FSC是指forwardscatter,中文翻译为前向散射光,前向散射光参数和细胞的大小成正比;SSC是指sidescater,中文翻译为侧向散射光,侧向散射光参数反映的是细胞的复杂程度)设门去除碎片,根据FSC参数大小将细胞分为获得FSA large和FSA small两群细胞,FSA large细胞群为神经元细胞群。如图3所示,FSA large细胞占单细胞的比率为83.99%;进一步对FSAlarge细胞群进行分选,获得Sox14阳性大细胞即为目标神经元细胞,如图4所示,Sox14阳性大细胞占FSA large细胞比率为8.21%,所以提取到的目标神经元细胞占总细胞的比率为2.12%。
实施例2
实施例2中步骤1和步骤2与实施例1完全相同,本实施例中不再叙述。
步骤3、采用流式细胞术分选下丘脑中S100g标志物的阳性细胞,即为弓状核神经元核团,S100g标志物表达的蛋白质位于神经元的细胞膜上,S100g标志物表达的蛋白质如SEQUENCE LISTING ID NO.6所示的核苷酸序列。具体方法如下:
S31、取出生后45天的SD大鼠的下丘脑30份,制备成单细胞悬液;将单细胞悬液放置于含10%胎牛血清、1%叠氮化钠的冰磷酸盐缓冲盐溶液中重悬至约5x 106细胞/mL;
S32、向每份重悬细胞液中添加30μLS100g抗体,加入等体积的冰乙醇,在-20℃固定过夜,次日取出,以400g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬;再以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬,如此重复操作3次;
S33、向每份重悬细胞液中添加15μL抗兔FITC二抗(Abcam制造),在-20℃固定过夜,次日取出,以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬;再以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬,如此重复操作3次;
S34、首先采用FSCA/H设门去除步骤S33所得细胞重悬液中的黏连细胞,得到独立的单细胞,此步骤中单细胞收率为64.35%,如图5所示;然后选择活细胞,如图6所示,此步骤中活细胞收率为93.53%,然后使用FSA/SSA(FSC是指forward scatter,中文翻译为前向散射光,前向散射光参数和细胞的大小成正比;SSC是指side scater,中文翻译为侧向散射光,侧向散射光参数反映的是细胞的复杂程度)设门去除碎片,根据FSC参数大小将细胞分为获得FSA large和FSA small两群细胞,FSA large细胞群为神经元细胞群。如图7所示,FSA large细胞占单细胞的比率为19.50%;进一步对FSA large细胞群进行分选,获得Sox14阳性大细胞即为目标神经元细胞,如图8所示,Sox14阳性大细胞占FSA large细胞比率为5.91%,所以提取到的目标神经元细胞占总细胞的比率为0.69%,所取得的目标神经元细胞为活细胞。
实施例3
实施例3中步骤1和步骤2与实施例1完全相同,本实施例中不再叙述。
步骤3、采用流式细胞术分选下丘脑中Gck标志物的阳性细胞,即为弓状核神经元核团,Gck标志物表达的蛋白质位于神经元细胞的内部,Gck标志物表达的蛋白质如SEQUENCE LISTING ID NO.5所示的核苷酸序列。具体方法如下:
S31、取出生后45天的SD大鼠的下丘脑30份,制备成单细胞悬液;将单细胞悬液放置于含10%胎牛血清、1%叠氮化钠的冰磷酸盐缓冲盐溶液中重悬至约5x 106细胞/mL;
S32、向每份重悬细胞液中添加30μL Gck抗体,加入等体积的冰乙醇,在-20℃固定过夜,次日取出,以400g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬;再以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬,如此重复操作3次;
S33、向每份重悬细胞液中添加15μL抗兔FITC二抗(Abcam制造),在-20℃固定过夜,次日取出,以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬;再以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬,如此重复操作3次;
S34、首先采用FSCA/H设门去除步骤S33所得细胞重悬液中的黏连细胞,得到独立的单细胞,此步骤中单细胞收率为38.47%,如图9所示;然后使用FSA/SSA(FSC是指forwardscatter,中文翻译为前向散射光,前向散射光参数和细胞的大小成正比;SSC是指sidescater,中文翻译为侧向散射光,侧向散射光参数反映的是细胞的复杂程度)设门去除碎片,根据FSC参数大小将细胞分为获得FSA large和FSA small两群细胞,FSA large细胞群为神经元细胞群。如图10所示,FSA large细胞占单细胞的比率为78.28%;进一步对FSAlarge细胞群进行分选,获得Sox14阳性大细胞即为目标神经元细胞,如图11所示,Sox14阳性大细胞占FSA large细胞比率为6.28%,所以提取到的目标神经元细胞占总细胞的比率为1.9%。
实施例4
实施例4中步骤1和步骤2与实施例1完全相同,本实施例中不再叙述。
步骤3、采用流式细胞术分选下丘脑中Six6标志物的阳性细胞,即为弓状核神经元核团,Six6标志物表达的蛋白质位于神经元细胞的内部,Six6标志物表达的蛋白质如SEQUENCE LISTING ID NO.7所示的核苷酸序列。具体方法如下:
S31、取出生后45天的SD大鼠的下丘脑30份,制备成单细胞悬液;将单细胞悬液放置于含10%胎牛血清、1%叠氮化钠的冰磷酸盐缓冲盐溶液中重悬至约5x 106细胞/mL;
S32、向每份重悬细胞液中添加30μL Six6抗体,加入等体积的冰乙醇,在-20℃固定过夜,次日取出,以400g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬;再以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬,如此重复操作3次;
S33、向每份重悬细胞液中添加15μL抗兔FITC二抗(Abcam制造),在-20℃固定过夜,次日取出,以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬;再以500g的速度离心10min,接着在冰磷酸盐缓冲盐溶液中重悬,如此重复操作3次;
S34、首先采用FSCA/H设门去除步骤S33所得细胞重悬液中的黏连细胞,得到独立的单细胞,此步骤中单细胞收率为44.77%,如图12所示;然后使用FSA/SSA(FSC是指forward scatter,中文翻译为前向散射光,前向散射光参数和细胞的大小成正比;SSC是指side scater,中文翻译为侧向散射光,侧向散射光参数反映的是细胞的复杂程度)设门去除碎片,根据FSC参数大小将细胞分为获得FSA large和FSA small两群细胞,FSA large细胞群为神经元细胞群。如图13所示,FSA large细胞占单细胞的比率为52.70%;进一步对FSA large细胞群进行分选,获得Sox14阳性大细胞即为目标神经元细胞,如图14所示,Sox14阳性大细胞占FSA large细胞比率为7.42%,所以提取到的目标神经元细胞占总细胞的比率为1.8%。
以上所述的,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
序列表
<110> 上海昆盟生物科技有限公司
<120> 一种用于分离大鼠下丘脑弓状核神经元的方法
<130> 2021
<160> 8
<170> SIPOSequenceListing 1.0
<210> 1
<211> 2442
<212> RNA
<213> 大鼠属(Rattus norvegicus)
<400> 1
gccuaucuuu ugcaacacuc agccagacag uccucaccug caacaggugg ccucaggagu 60
caggaacauc ucuacuuccc caacgacccc uggguugucc ucucagagau ggcuauggau 120
acuacaaggu guggagccca guuguugacu cugggcacca acaaaugcac gaaugcaugc 180
ucccugcugu gcagagcggg uacucacaac gggcacauga acccucgcug ccgaacagag 240
caggcggccg ccacacagcu gcccaccugc agaguccagc uacucuugaa cuaucaugug 300
gagggucgag cagauccugg cagaguucca gcugcaggag gaagaccuga agaaggugau 360
gagccggaug cagaaggaga uggaccgugg ccugaggcug gagacccacg aggagaaguc 420
ggagacuuuc ucuccuuaga ccugggagga accaacuuca gagugaugcu ggucaaagug 480
ggagaggggg aggcagggca guggagcgug aagacaaaac accagaugua cuccaucccc 540
gaggacgcca ugacgggcac ugccgagaug cucuuugacu acaucucuga augcaucucu 600
gacuuccuug acaagcauca gaugaagcac aagaaacugc cccugggcuu caccuucucc 660
uucccuguga ggcacgaaga ccuagacaag ggcauccucc ucaauuggac caagggcuuc 720
aaggccucug gagcagaagg gaacaacauc guaggacuuc uccgagaugc uaucaagagg 780
agaggggacu uugagaugga ugugguggca auggugaacg acacaguggc cacaaugauc 840
uccugcuacu augaagaccg ccaaugugag gucggcauga uugugggcac uggcugcaau 900
gccugcuaca uggaggaaau gcagaaugug gagcuggugg aaggggauga gggacgcaug 960
ugcgucaaca cggagugggg cgccuucggg gacucgggcg agcuggauga guuccuacug 1020
gaguaugacc ggauggugga ugaaagcuca gcgaaccccg gucagcagcu guacgagaag 1080
aucaucggug ggaaguauau gggcgagcug guacgacuug ugcugcuuaa gcugguggac 1140
gagaaccuuc uguuccacgg agaggccucg gagcagcugc gcacgcgugg ugcuuuugag 1200
acccguuucg ugucacaagu ggagagcgac uccggggacc gaaagcagau ccacaacauc 1260
cuaagcacuc uggggcuucg acccucuguc accgacugcg acauugugcg ccgugccugu 1320
gaaagcgugu ccacucgcgc cgcccauaug ugcuccgcag gacuagcugg ggucauaaau 1380
cgcaugcgcg aaagccgcag ugaggacgug augcgcauca cugugggcgu ggauggcucc 1440
guguacaagc ugcacccgag cuucaaggag cgguuucacg ccagugugcg caggcugaca 1500
cccaacugcg aaaucaccuu caucgaauca gaggagggca gcggcagggg agccgcgcug 1560
gucucugcgg uggccugcaa gaaggcuugc augcuggccc agugaaaucc aggucauaug 1620
gaccgggacc uggguuccac ggggacucca cacaccacaa augcucccag cccaccgggg 1680
caggagaccu auucugcugc uaccccugga aaauggggag aggccccugc aagccgaguc 1740
ggccaguggg acagcccuag ggcucucagc cuggggcagg gggcugggag gaagaagagg 1800
aucagaggcg ccaaggccuu ucuugcuaga aucaacuaca gaaaauggcg gaaaauacuc 1860
aggacuugca cuuucacgau ucuugcuucc caagcguggg ucuggccucc caagggaaug 1920
cuuccuggac cuugcaaugg ccuggcuucc cuggggggga cacaccuuca uggggaggua 1980
acuucagcag uucggccaga ccagacccca ggagaguaag ggcugcuagu cacccagacc 2040
uggcuguuuu cuugucugug gcugaagagg ccggggagcc augagagacu gacuauccgg 2100
cuacauggag aggacuuucc aggcaugaac augccagaga cuguugccuu cauauaccuc 2160
cacccgagug gcuuacaguu cugggaugaa cccucccagg agaugccaga gguuagagcc 2220
ccagaguccu ugcucuaagg ggaccagaaa ggggaggccu cacucugcac uauucaagca 2280
ggaaucaucu ccaacacuca ggucccugac ccaggaggaa gaagccaccc ucaguguccc 2340
uccaagagac cacccagguc cuucucuccc ucguucccaa augccagccu cucuaccugg 2400
gacugugggg gaguuuuuaa uuaaauauuu aaaacuacuu ca 2442
<210> 2
<211> 405
<212> RNA
<213> 大鼠属(Rattus norvegicus)
<400> 2
agaccucacc uguuccuguc ugacucuggc agcacucacu gacagcaagc agcacagaaa 60
aaugagcgcu aagaaaucuc ccgaagaaau gaagagcauu uuucaaaaau augcagccaa 120
agaaggcgau ccaaaccagc uguccaagga ggagcugaag cugcugauuc agucagaguu 180
ccccagccuc cugaaggcuu caaguacucu agacaaucuc uuuaaagagc uggauaagaa 240
cggugaugga gaaguuagcu augaagaauu cgaaguuuuc uucaaaaagu uaucacaaug 300
aagccagaag aaggagcucc gacaccaccu acugauugaa uccuauccaa ucccaaagau 360
cuagcuguga gagcaagaua cuguuaauaa agcaaauucu gagac 405
<210> 3
<211> 3999
<212> RNA
<213> 大鼠属(Rattus norvegicus)
<400> 3
aucuagcugg cuggcguguc cuagcugagc aagcgcagcc gaacccaacc cacaucucuu 60
ccaggcggga aggcuccccc ccgacuuugu aacccccagc cgcaccccgc ucggccggcg 120
ggcaucugcu gccugucccg cccggggcgc ccgcgcagcc ucgauguucc agcugcccau 180
uuugaauuuc agcccccagc aaguagccgg gguaugcgag acccuggagg aaagcggcga 240
cguggagcgc cucggucgcu uccugugguc gcugcccgug gccccggcag ccugugaggc 300
ccucaacaaa aaugagucgg ugcugcgcgc gagagccauc guggccuucc acgguggcaa 360
cuaccgcgag cucuaccaca uucuggaaaa ucauaaguuu acuaaggaau cgcacgccaa 420
gcugcaggca cuguggcucg aagcucauua ccaggaggca gagaagcugc guggacgacc 480
ccuggggcca guagacaagu accggguaag gaagaaguuc ccgcugccgc ggaccauuug 540
ggauggcgaa cagaagacuc acugcuucaa ggagcgcaca cggcaccugc uucgagagug 600
guaccuucag gacccauauc ccaaccccag caaaaagcga gagcucgccc aagcaaccgg 660
acugaccccc acgcaggugg gcaacugguu caaaaaccgc agacaaagag accgggcagc 720
ugcagccaag aacagacucc agcaacaggu ucugucgcag ggccccgggc gggugcuacg 780
cucggagggu gagggcacgc cagaggugcu gggcgucgcc uccaguccug cugccagucu 840
guccagcaag gcggccacuu cggccaucuc caucacaucc agcgacagcg agugcgacau 900
cugaccuguu cacucaucac acuuagaaac agaauccagu guaaaaauca gaugcacaaa 960
auaagagagg accggaccag caaauacgac gcuggccccg uggccaggga ccggcgggcc 1020
uaaacugcuc uuguagggag uuucuaucgc aacucugggg cgugcgguga ggccugaccc 1080
aaugccauuu cucuucacgu ugcuuuuccu ggaggaucug gcugcaaaga cucauuugga 1140
acagaacugc acgcugagcg ccugcccuug agucuccugu ggguauuuca uuugucgaaa 1200
ggacgguguu auauauauau auguauguau aacuuuuccu uugaagguuu cuuuuuaaaa 1260
aaaacaaaac aaaacauaua uaugcuguuu auuuacuuau uuaaaagacu uccaugauag 1320
guuucucugu agcuugggga acuugcuguu cuaaaugagc gagcucaugc auucugugug 1380
aagaagccaa auaauaaaac accuugguga guaaccuuuc uuaaugaagg gagcugcuau 1440
cucagauuuu aaaaaaucac ucguauuccc uuuaccgggc augcaggaug gaauccuguc 1500
caaauagucu cucugacuuc ucuauuuccu uugauaucuc aguaucuauu uuuaaacaac 1560
cacggauaaa ccgcuaacca cuggccacau cggauuguau aaaaguguag cauauguaua 1620
cacaaacaua ugcacauugu cauuguccca gaauuuggag cauagauacg ccgucccgcc 1680
guccacgcca gcgcuuuaca uuccgcacac gggugaucau gguuugccca ccucaucauu 1740
uuuauuaagu guuagugauu uucaagaaca auucgagaag acaaauucua gacucaggca 1800
augaauccua uuuuacaaaa aaaaugcaaa gacgugcgug agaauuuuau gauaaaaaag 1860
uguuuccauu uuguuugagg cccucgccca cucagaagaa gugugugcgc acucaugauc 1920
guagggcgag cauauagagc auguagaauu uuacuaaugc augcaguuuu uaucaagacc 1980
auuaaaaaag aucggagagc uugucaguaa cuagacuagc aucuuccugc uucagacaug 2040
gguuuuaguc aaguaaauua uuuuuaccaa gagaaaucag uauacagguu auauauugac 2100
cagaaagcaa gcuacagaga aaugacaggc auuuucuaaa ucaaugcucu cuacauuuaa 2160
caugcaaaca auucaucagg aacuucauug ccuugggagu aaccuuaguu aaaauauaaa 2220
auauuguuag cauguaacug uucuuuuuac auacacaggu auauaccaca ugcacgugca 2280
ggcguacaca cacacacaca cacacacaca cacacuacca uuuuugcacu aagaaaguaa 2340
auaauauuca gauaaucuaa gauuuugcuu ucucuaguaa aauggauugc acauuacaaa 2400
auuugacauu gaucuuuaaa ucacuugagc uggacuucuc acccaguuag aguucuuuua 2460
auucaccucu cuguccuaaa agguauucca caggucaaac aaacaccugc uaauguuucu 2520
gaaggcaaaa aagguuaaag uaccaaacaa augaaaaaug aaguuacaaa agacaauaga 2580
uagucaagug acuauuggaa gccagggaug ugagaaaagg cuaauguaug uacgcaugua 2640
uguuuaugua uguauguuug uauguaugug uguuuguaug aauguaugca uacaugcaug 2700
cauguuugua ugucacuuaa gcagagcugg cuucuguggg cuuuaaaauu aucaucacug 2760
uccaaauguu ccuuaucuag aaaaucuuug caaauugaaa cugucauagc aaaagagcag 2820
uagauggaca aguuuaggga gcauuuguga uugaauaggu aauucucaaa uugaaccaac 2880
gcacuacagu gguccaugcu accucugcug auuucuaaag ucccugguag uacuuugauu 2940
gccaaggagc agucuggggc accagaggag agugcaaaug cuaagaaaau auuccuuuuc 3000
cugguccuga gagugacaac ccauagcgac cugaaacuga guagcuccuu aauuuuguac 3060
ccuugguuag uggugguauu gugacucuaa cuggcagacc ucgggagguu uaggaucagu 3120
cuggccuaca aggugagcuc caggcuagcc augucuacac ggugagguuu uuguuuuuaa 3180
cacagagugu uucagaaaac accaacauau uucacccgag guucucucac cucacccuag 3240
ucuagaauca gccuagcagg auugcgcuuc aaugggaaau uccuggcucu caaucuuaca 3300
guccagcucu gucuccucuc auuucaguua uagaugaucc agaaccagua auuggagagg 3360
cucacuggca aauuucauuu cuuauuuuuu gugaucccag gucaaguaga aaagaaggaa 3420
agaacuaauu aguaaacuga uguacaagaa uuugagauua uaaaaauccu aaccuacucg 3480
ccauauucga augacugaaa cagaaggaaa caucuacucu cuccggaaau agagcaagcc 3540
ucagaaacua agcuuucucu guauggaaca acguuuaaug gcccuuacgg aaaauguuuc 3600
ccuaucugca uuggugaagg cuuuuaaaua uauuauuuac cuaaauuaac aagcugccca 3660
agaauuacau uuaaaguagu uauaaugcuu caaaaacaug cagauuuauu aaucugauuu 3720
cauguugaaa ucuuggggca ccaacauugu ucgaaagaua uuuuugaaug uguaccggaa 3780
aucugguguc acguaauugc ucugugauua auucuuggaa ugaccccagg uuggaaauua 3840
ggccagaccu ucaaacaucu acuuaucuaa ucaccugaau cagcccauaa acacguauua 3900
ugaaaauuuu cuuuuuuaaa aaaaaucaau uuuauccuag ccuaagcugc guuaaaaauc 3960
gaggcaguag aaaggcucca auaaagguuc ugaaucgag 3999
<210> 4
<211> 1937
<212> RNA
<213> 大鼠属(Rattus norvegicus)
<400> 4
gagaaggcga aggugaagag ggagcgaagg aggagccucc ugcccucgcc agaaaauuac 60
cuagccacuu aaucccaaga cucugguacu ugggccccaa ucucuggugc ccacagacuc 120
caggccgaga guccucuccu ccccgcugcc cuuccuacuc uucggccccc ugggggcugc 180
cugggggcug ggacuggcau gaucaguuga aaacuuugca gggucagcuc uucucucuga 240
uuuuuccucu gcggcuccga gacgagggga cuucagaguc ccgggcucag gacggacaga 300
aagacagacg gccaaccgcg cccaggcacg cccgcagagc cccugcauuc cccgcccccg 360
cccgccucgc cgggaccaug uccaaaccuu cagaccacau caagaggccc augaaugccu 420
ucaugguaug gucccggggc cagcggcgca agauggccca ggaaaauccc aagaugcaca 480
acucggagau cagcaaacgc cuaggcgccg aauggaagcu ccuguccgag gcagagaagc 540
ggccuuacau cgacgaagcc aaaaggcugc gcgcccagca caugaaggag caccccgacu 600
acaaguaccg gccucggcgc aagccgaaga accugcucaa gaaagacagg uaugucuucc 660
cccugcccua ccugggcgac acggacccgc ucaaggcggc cggccugccc gugggggcuu 720
ccgacggccu ccugagcgcg cccgagaaag cccgggccuu cuugccgccg gccucggcgc 780
cuuacucccu gcuggacccu gcgcaauuua guuccagugc cauccagaag augggugaag 840
ugccccacac guuggccacc agcgcgcugc ccuacgcguc cacccugggc uaucagaacg 900
gcgccuucgg cagucucagc ugccccagcc agcauacgca cacgcacccg ucccccacca 960
acccgggcua cguggugccc uguaacugua ccgccugguc ugccuccacc cugcagcccc 1020
cugucgccua cauccucuuc ccaggcauga ccaagacugg cauagacccu uauucgucag 1080
cccacgcuac ggccauguaa cccccagcuu ggccgggacc ugaagggugg uguggaagca 1140
gagaucugau uccuuuccuu ugcaccuagu cuggcccaca gaugccucug ggucaggccu 1200
acugcugccc ccugcccacc ccagacucug ccucucucuu ccaggggaaa agggaggggc 1260
cgccauccug gacccaaggc acagacucgu gcuggaaauu uccaaacguu uagaaagcua 1320
cacauguucc ccucucccga cucucccaaa gcaaaccucc gacuguaccc ccuuuggaca 1380
aaaaaaaaag uaggcaauuu gcuuuauuua cgucccccuc acuguccgcg gauaggcuuu 1440
ggacucggaa cucccagauc cugguauuau aucuagaaca ugcguauaua uauuuuuccu 1500
uucccacuga agaaaagagc ugagucuugc ugcugugcca ucagacccag cuaggcacca 1560
uuugcucuuc ccgugugggg gugagaggcu uaaaaguuua aaacuucagg aagggaaacc 1620
uuucuguuuc aaaccauacu guggucgugu uugcuucgau aaagagaaaa aaaaaaaaag 1680
gaaccaugug gcuuuucacu uuguguaccg caguacuccu agacaccuaa guuuacuuuu 1740
agacagaaug ucagguaaug aaaucaggaa guagaaagug gacaaaaacc uuaaaauaau 1800
aauaaaaaaa aacauccuac auggucauaa auguuuugac aaugucuugg aaauguaccu 1860
agaaggauuu uuuuuucuca uuccucuguu cauuuuguug aacaaagacg uuuuaaauaa 1920
agacaaucug ucacugc 1937
<210> 5
<211> 498
<212> PRT
<213> 大鼠属(Rattus norvegicus)
<400> 5
Met Ala Met Asp Thr Thr Arg Cys Gly Ala Gln Leu Leu Thr Leu Gly
1 5 10 15
Thr Asn Lys Cys Thr Asn Ala Cys Ser Leu Leu Cys Arg Ala Gly Thr
20 25 30
His Asn Gly His Met Asn Pro Arg Cys Arg Thr Glu Gln Ala Ala Ala
35 40 45
Thr Gln Leu Pro Thr Cys Arg Val Gln Leu Leu Leu Asn Tyr His Val
50 55 60
Glu Gly Arg Ala Asp Pro Gly Arg Val Pro Ala Ala Gly Gly Arg Pro
65 70 75 80
Glu Glu Gly Asp Glu Pro Asp Ala Glu Gly Asp Gly Pro Trp Pro Glu
85 90 95
Ala Gly Asp Pro Arg Gly Glu Val Gly Asp Phe Leu Ser Leu Asp Leu
100 105 110
Gly Gly Thr Asn Phe Arg Val Met Leu Val Lys Val Gly Glu Gly Glu
115 120 125
Ala Gly Gln Trp Ser Val Lys Thr Lys His Gln Met Tyr Ser Ile Pro
130 135 140
Glu Asp Ala Met Thr Gly Thr Ala Glu Met Leu Phe Asp Tyr Ile Ser
145 150 155 160
Glu Cys Ile Ser Asp Phe Leu Asp Lys His Gln Met Lys His Lys Lys
165 170 175
Leu Pro Leu Gly Phe Thr Phe Ser Phe Pro Val Arg His Glu Asp Leu
180 185 190
Asp Lys Gly Ile Leu Leu Asn Trp Thr Lys Gly Phe Lys Ala Ser Gly
195 200 205
Ala Glu Gly Asn Asn Ile Val Gly Leu Leu Arg Asp Ala Ile Lys Arg
210 215 220
Arg Gly Asp Phe Glu Met Asp Val Val Ala Met Val Asn Asp Thr Val
225 230 235 240
Ala Thr Met Ile Ser Cys Tyr Tyr Glu Asp Arg Gln Cys Glu Val Gly
245 250 255
Met Ile Val Gly Thr Gly Cys Asn Ala Cys Tyr Met Glu Glu Met Gln
260 265 270
Asn Val Glu Leu Val Glu Gly Asp Glu Gly Arg Met Cys Val Asn Thr
275 280 285
Glu Trp Gly Ala Phe Gly Asp Ser Gly Glu Leu Asp Glu Phe Leu Leu
290 295 300
Glu Tyr Asp Arg Met Val Asp Glu Ser Ser Ala Asn Pro Gly Gln Gln
305 310 315 320
Leu Tyr Glu Lys Ile Ile Gly Gly Lys Tyr Met Gly Glu Leu Val Arg
325 330 335
Leu Val Leu Leu Lys Leu Val Asp Glu Asn Leu Leu Phe His Gly Glu
340 345 350
Ala Ser Glu Gln Leu Arg Thr Arg Gly Ala Phe Glu Thr Arg Phe Val
355 360 365
Ser Gln Val Glu Ser Asp Ser Gly Asp Arg Lys Gln Ile His Asn Ile
370 375 380
Leu Ser Thr Leu Gly Leu Arg Pro Ser Val Thr Asp Cys Asp Ile Val
385 390 395 400
Arg Arg Ala Cys Glu Ser Val Ser Thr Arg Ala Ala His Met Cys Ser
405 410 415
Ala Gly Leu Ala Gly Val Ile Asn Arg Met Arg Glu Ser Arg Ser Glu
420 425 430
Asp Val Met Arg Ile Thr Val Gly Val Asp Gly Ser Val Tyr Lys Leu
435 440 445
His Pro Ser Phe Lys Glu Arg Phe His Ala Ser Val Arg Arg Leu Thr
450 455 460
Pro Asn Cys Glu Ile Thr Phe Ile Glu Ser Glu Glu Gly Ser Gly Arg
465 470 475 480
Gly Ala Ala Leu Val Ser Ala Val Ala Cys Lys Lys Ala Cys Met Leu
485 490 495
Ala Gln
<210> 6
<211> 79
<212> PRT
<213> 大鼠属(Rattus norvegicus)
<400> 6
Met Ser Ala Lys Lys Ser Pro Glu Glu Met Lys Ser Ile Phe Gln Lys
1 5 10 15
Tyr Ala Ala Lys Glu Gly Asp Pro Asn Gln Leu Ser Lys Glu Glu Leu
20 25 30
Lys Leu Leu Ile Gln Ser Glu Phe Pro Ser Leu Leu Lys Ala Ser Ser
35 40 45
Thr Leu Asp Asn Leu Phe Lys Glu Leu Asp Lys Asn Gly Asp Gly Glu
50 55 60
Val Ser Tyr Glu Glu Phe Glu Val Phe Phe Lys Lys Leu Ser Gln
65 70 75
<210> 7
<211> 246
<212> PRT
<213> 大鼠属(Rattus norvegicus)
<400> 7
Met Phe Gln Leu Pro Ile Leu Asn Phe Ser Pro Gln Gln Val Ala Gly
1 5 10 15
Val Cys Glu Thr Leu Glu Glu Ser Gly Asp Val Glu Arg Leu Gly Arg
20 25 30
Phe Leu Trp Ser Leu Pro Val Ala Pro Ala Ala Cys Glu Ala Leu Asn
35 40 45
Lys Asn Glu Ser Val Leu Arg Ala Arg Ala Ile Val Ala Phe His Gly
50 55 60
Gly Asn Tyr Arg Glu Leu Tyr His Ile Leu Glu Asn His Lys Phe Thr
65 70 75 80
Lys Glu Ser His Ala Lys Leu Gln Ala Leu Trp Leu Glu Ala His Tyr
85 90 95
Gln Glu Ala Glu Lys Leu Arg Gly Arg Pro Leu Gly Pro Val Asp Lys
100 105 110
Tyr Arg Val Arg Lys Lys Phe Pro Leu Pro Arg Thr Ile Trp Asp Gly
115 120 125
Glu Gln Lys Thr His Cys Phe Lys Glu Arg Thr Arg His Leu Leu Arg
130 135 140
Glu Trp Tyr Leu Gln Asp Pro Tyr Pro Asn Pro Ser Lys Lys Arg Glu
145 150 155 160
Leu Ala Gln Ala Thr Gly Leu Thr Pro Thr Gln Val Gly Asn Trp Phe
165 170 175
Lys Asn Arg Arg Gln Arg Asp Arg Ala Ala Ala Ala Lys Asn Arg Leu
180 185 190
Gln Gln Gln Val Leu Ser Gln Gly Pro Gly Arg Val Leu Arg Ser Glu
195 200 205
Gly Glu Gly Thr Pro Glu Val Leu Gly Val Ala Ser Ser Pro Ala Ala
210 215 220
Ser Leu Ser Ser Lys Ala Ala Thr Ser Ala Ile Ser Ile Thr Ser Ser
225 230 235 240
Asp Ser Glu Cys Asp Ile
245
<210> 8
<211> 240
<212> PRT
<213> 大鼠属(Rattus norvegicus)
<400> 8
Met Ser Lys Pro Ser Asp His Ile Lys Arg Pro Met Asn Ala Phe Met
1 5 10 15
Val Trp Ser Arg Gly Gln Arg Arg Lys Met Ala Gln Glu Asn Pro Lys
20 25 30
Met His Asn Ser Glu Ile Ser Lys Arg Leu Gly Ala Glu Trp Lys Leu
35 40 45
Leu Ser Glu Ala Glu Lys Arg Pro Tyr Ile Asp Glu Ala Lys Arg Leu
50 55 60
Arg Ala Gln His Met Lys Glu His Pro Asp Tyr Lys Tyr Arg Pro Arg
65 70 75 80
Arg Lys Pro Lys Asn Leu Leu Lys Lys Asp Arg Tyr Val Phe Pro Leu
85 90 95
Pro Tyr Leu Gly Asp Thr Asp Pro Leu Lys Ala Ala Gly Leu Pro Val
100 105 110
Gly Ala Ser Asp Gly Leu Leu Ser Ala Pro Glu Lys Ala Arg Ala Phe
115 120 125
Leu Pro Pro Ala Ser Ala Pro Tyr Ser Leu Leu Asp Pro Ala Gln Phe
130 135 140
Ser Ser Ser Ala Ile Gln Lys Met Gly Glu Val Pro His Thr Leu Ala
145 150 155 160
Thr Ser Ala Leu Pro Tyr Ala Ser Thr Leu Gly Tyr Gln Asn Gly Ala
165 170 175
Phe Gly Ser Leu Ser Cys Pro Ser Gln His Thr His Thr His Pro Ser
180 185 190
Pro Thr Asn Pro Gly Tyr Val Val Pro Cys Asn Cys Thr Ala Trp Ser
195 200 205
Ala Ser Thr Leu Gln Pro Pro Val Ala Tyr Ile Leu Phe Pro Gly Met
210 215 220
Thr Lys Thr Gly Ile Asp Pro Tyr Ser Ser Ala His Ala Thr Ala Met
225 230 235 240
Claims (4)
1.一种用于分离大鼠下丘脑弓状核神经元的方法,其特征在于,所述方法包括如下步骤:
步骤一、找出下丘脑中弓状核神经元核团的差异表达最显著的若干个标志物;
步骤二、根据标志物在其他细胞群中的表达差异筛选出在弓状核区域中唯一显著高表达的标志物,分别为Gck、S100g、Six6和Sox14;
标志物Gck如SEQUENCE LISTING ID NO.1所示的核苷酸序列;
标志物S100g如SEQUENCE LISTING ID NO.2所示的核苷酸序列;
标志物Six6如SEQUENCE LISTING ID NO.3所示的核苷酸序列;
标志物Sox14如SEQUENCE LISTING ID NO.4所示的核苷酸序列;
步骤三、采用流式细胞术分别分选下丘脑中Sox14、S100g、Gck和Six6这四个标志物的阳性细胞,即为弓状核神经元核团。
2.根据权利要求1所述的一种用于分离大鼠下丘脑弓状核神经元的方法,其特征在于,所述步骤一的具体方法如下:
S11、取SD大鼠全脑切片,放置于载玻片的捕获区域上,固定和透化全脑切片,捕获区域捕获细胞释放的RNA;
S12、将载玻片上的细胞群降维聚类为14个细胞群,其中9号群在位置上与脑图谱定位的弓状核一致;找出9号细胞群中差异表达最显著的前9个标志物。
3.根据权利要求2所述的一种用于分离大鼠下丘脑弓状核神经元的方法,其特征在于,所述步骤一中选出的标志物分别为Fezf1、Kiss1、Ghrh、Sox14、S100g、Ces1d、Gck、Crhr2和Six6。
4.根据权利要求3所述的一种用于分离大鼠下丘脑弓状核神经元的方法,其特征在于,所述步骤二的具体方法如下:
S21、计算Fezf1、Kiss1、Ghrh、Sox14、S100g、Ces1d、Gck、Crhr2和Six6标志物在14个细胞群中的表达量;
S22、筛选出在9号细胞群内部唯一高表达的标志物,分别为Gck、S100g、Six6和Sox14。
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