隨著單細胞組學研究的飛速發(fā)展,組織提核技術(shù)逐漸成為單細胞研究中的必要手段。單核測序相較單細胞測序有著諸多優(yōu)勢:簡單快捷的實驗步驟,更少細胞解離引起的類型偏好,解除細胞大小對微流控捕獲效率的偏好,減少解離時應激基因誘導的轉(zhuǎn)錄假象,使細胞直徑過大、細胞形狀不規(guī)則、凍存組織做單細胞研究成為可能。目前神經(jīng)細胞[1-3]、心臟[4]、腎臟[5-6]、肝臟[7-8]、脂肪[9-10]等的單細胞研究均可選用細胞核進行實驗。
然而提核技術(shù)也存在一定問題,比如提核后的細胞核狀態(tài)不好、細胞核的得率較低、細胞核易粘連、碎片和雜質(zhì)過多且難以去除等。
為提高科研服務水平,優(yōu)化提核技術(shù),助力單細胞研究,博奧晶典研究人員經(jīng)過不斷鉆研,攻克技術(shù)難關(guān),成功研發(fā)出【動物組織細胞核分離試劑盒】。目前此款試劑盒已成功測試新鮮組織、凍存組織的多種組織類型,包括小鼠腦、人腦、小鼠心臟、小鼠腎臟、小鼠肝臟、人腦、人卵巢、人肺、豬心臟、肝臟、脂肪等等,數(shù)據(jù)結(jié)果表現(xiàn)優(yōu)秀。
圖1 博奧晶典自研組織細胞核分離試劑盒
檢驗原理
該試劑盒通過利用表面活性劑破壞組織細胞的膜和蛋白質(zhì)結(jié)構(gòu),釋放細胞核,使之處于游離狀態(tài),然后通過密度梯度離心純化細胞核。得到的純凈細胞核可適用于單細胞核轉(zhuǎn)錄組、單細胞 ATAC-seq 和單細胞多組學等實驗。
主要組成成分
表1:博奧晶典自研組織細胞核分離試劑盒主要組成成分表
部分測試數(shù)據(jù)展示
圖2 人卵巢 OCT 包埋組織(左上)、豬心臟(右上)、人腦(左下)、小鼠腎臟(右下)提核結(jié)果
圖3 小鼠腦提核數(shù)據(jù)展示(細胞活率0.12%、結(jié)團率5.86%)
圖4 小鼠腦提核樣本的3’單細胞轉(zhuǎn)錄組小測結(jié)果(細胞數(shù)7746,基因中位數(shù)1582)
經(jīng)過以上數(shù)據(jù)展示,可以發(fā)現(xiàn)博奧晶典自主研發(fā)的核分離試劑盒在各類新鮮組織、凍存組織提核的實驗中表現(xiàn)很好。尤其是從小鼠腦單細胞核轉(zhuǎn)錄組的實際小測數(shù)據(jù)和分析結(jié)果來看,在測序飽和度不高的前提下,捕獲細胞數(shù)、基因中位數(shù)、Fraction Reads in Cell 等重要指標非常良好。此外細胞分群效果良好,星形膠質(zhì)細胞、少突膠質(zhì)細胞、小神經(jīng)膠質(zhì)細胞、興奮性神經(jīng)元、抑制性神經(jīng)元等關(guān)鍵細胞類型均得到了很好的鑒定,各細胞類型的數(shù)量和比例符合理論值。
經(jīng)過上述介紹,相信您對這款試劑盒已經(jīng)有了一些了解,博奧晶典始終以更高標準的服務、追求卓越的態(tài)度提供科研服務,希望博奧晶典自研【動物組織細胞核分離試劑盒】可以助您更好的開展單細胞組學實驗,為您提供更加準確的單細胞組學方案。
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