Single-nucleus RNA Sequencing
單細(xì)胞核測序技術(shù)是在單細(xì)胞水平上發(fā)展起來的技術(shù),該技術(shù)可將凍存樣本直接制核捕獲,且依舊保存單細(xì)胞測序的高分辨率,能夠準(zhǔn)確區(qū)分細(xì)胞異質(zhì)性,揭示單個(gè)細(xì)胞的基因結(jié)構(gòu)和基因表達(dá)狀態(tài)。因其對樣本包容性高,核測序的出現(xiàn)解決了某些珍貴凍存樣本,異形細(xì)胞樣本無法進(jìn)行單細(xì)胞實(shí)驗(yàn)的問題,在心肺疾病,神經(jīng)發(fā)育等領(lǐng)域助力臨床治療和診斷,加速精準(zhǔn)醫(yī)療時(shí)代。
1、突破性改進(jìn)制核手段:跳過樣本消化步驟,直接凍存組織進(jìn)行制核。這種方法可以大大節(jié)省時(shí)間和資源,并且提高制核效率,細(xì)胞核捕獲率高達(dá)65%-80%
2. 消除細(xì)胞解離偏差:消除由于消化偏好性造成的細(xì)胞解離偏差,保證制核質(zhì)量遠(yuǎn)高于上機(jī)捕獲要求,可以為后續(xù)的分析提供更準(zhǔn)確的結(jié)果
3. 嚴(yán)格質(zhì)量把控:烈冰全程進(jìn)行嚴(yán)格的質(zhì)量把控,從實(shí)驗(yàn)設(shè)計(jì)到分析產(chǎn)出提供一站式服務(wù)流程,確保客戶獲得高質(zhì)量的數(shù)據(jù)和分析結(jié)果,并提供全面的支持和解決方案。
4. 核測序經(jīng)驗(yàn)豐富,助力發(fā)表高分SCI文獻(xiàn)
(圖片來源:Jing Wu?et al., Nature Neuroscience,2023)
樣本類型:
1.凍存組織、培養(yǎng)的細(xì)胞系等,一般取黃豆粒大小;
2.-80℃冰箱保存,送樣時(shí)干冰運(yùn)輸
客戶樣本--細(xì)胞核制備--核質(zhì)控檢測--單細(xì)胞核捕獲--細(xì)胞/轉(zhuǎn)錄本標(biāo)簽添加--文庫構(gòu)建--上機(jī)測序
Zhang, et al. Science Bulletin, 2020 Dec.
注:圖為獼猴腦組織細(xì)胞亞群鑒定t-SNE圖展示
Zhang, et al. Science Bulletin, 2020 Dec.
注:Marker基因的Violin圖(左)和bubble plot圖(右)
Zhang, et al. Science Bulletin, 2020 Dec.
注:該圖為不同細(xì)胞亞群間差異基因聚類分析圖(Heatmap)
Zhang, et al. Science Bulletin, 2020 Dec.
Zhang, et al. Science Bulletin, 2020 Dec.
Zhang C, et al. J Immunother Cancer, 2021;9:e002312.
注:細(xì)胞間狀態(tài)轉(zhuǎn)換的pesudotime軌跡圖(左)和Heatmap圖(右)
烈冰助力文獻(xiàn):
[1] Single-nucleus transcriptomic mapping of blast-induced traumatic brain injury in mice hippocampus,Scientific Data,2023,IF=9.8
[2] Integrating spatial and single-nucleus transcriptomic data elucidates microglial-specific responses in female cynomolgus macaques with depressive-like behaviors,Nature Neuroscience,2023, IF=25
[3] Targeting gut microbiota–derived kynurenine to predict and protect the remodeling of the pressure_overloaded young heart,Science Advances,2023,IF=13.6
[4] Silencing of NOTCH3 Signaling in Meniscus Smooth Muscle Cells Inhibits Fibrosis and Exacerbates Degeneration in a HEYL-Dependent Manner, Advanced Science, 2023,IF=15.1
[5] The molecular taxonomy of primate amygdala via single-nucleus RNA-sequencing analysis,Science Bulletin,202012, IF=18.9