hello,大家好攒岛,今天我們學(xué)習(xí)一些簡(jiǎn)單的內(nèi)容摩窃,關(guān)于我們單細(xì)胞測(cè)序得到的TCR、BCR分析得到的數(shù)據(jù)如何進(jìn)行良好的展示累盗,我們來(lái)看看下面的分析部分。參考文章為Single-cell analysis pinpoints distinct populations of cytotoxic CD4+ T cells and an IL-10+CD109+ TH2 cell population in nasal polyps突琳,2021年8月發(fā)表于SCIENCE IMMUNOLOGY若债,影響因子18分,文章的內(nèi)容相當(dāng)樸實(shí)拆融,方法簡(jiǎn)單蠢琳,分析內(nèi)容也直擊要害啊终,值得大家讀一讀,但是我們分享就分享一些獨(dú)特的分析點(diǎn)傲须。
Ball-packing plots
做過(guò)單細(xì)胞免疫的童鞋對(duì)于單細(xì)胞TCR蓝牲、BCR的分析應(yīng)該都不陌生,一方面我們需要好好分析自己的數(shù)據(jù)泰讽,參考很多的文獻(xiàn)方法例衍,另一方面也要只管的展現(xiàn)信息量足夠最多且直觀的圖片,我們先來(lái)看看這個(gè)圖的解釋:Ball-packing plots depicting the size of clones within a cluster. Each ball is one clone, and “clone size” depicts the number of cells of an individual clone. Each cluster is color-coded in accord with the original UMAP (Fig. 1A), and the clusters are positioned at a roughly similar position.(看來(lái)是建立在單細(xì)胞轉(zhuǎn)錄組數(shù)據(jù)定義結(jié)果之上的已卸,一個(gè)點(diǎn)代表一種克隆型佛玄,點(diǎn)的大小代表了克隆型的多少,顏色就是細(xì)胞類型累澡,信息量很足)梦抢。
圖展示的意義:
To enumerate the clonal heterogeneity of each cluster(甚至可以擴(kuò)展一點(diǎn),展示兩種細(xì)胞類型之間的共有克隆型愧哟。)This depicted clear clonal expansions in most effector CD4+ T cell subsets, whereas both CD4+ TCM clusters were primarily composed of single TCR clones.很多時(shí)候奥吩,我們需要這樣的分析來(lái)直觀展示我們的免疫分析結(jié)果。
第二種方式翅雏,洛倫茲曲線(Lorenz curves)
關(guān)于洛倫茲曲線圈驼,原本并不是用于分析單細(xì)胞數(shù)據(jù)的,大家可以直接百度洛倫茲曲線望几,就會(huì)有相關(guān)的內(nèi)容展示給大家绩脆,但是洛倫茲曲線用在這里恰到好處,我們先來(lái)看看圖片的解釋:Lorenz curve of the proportion of clonotypes within a cluster versus proportion of total cells within that same cluster橄抹。
展示意義:
To determine which clusters exhibited the greatest clonal expansions靴迫,This showed that the largest clonal expansions were present in CD4+ CTL, with prominent clonal outgrowths also observed in TFH, TH2, and Treg cells . Overall, analysis of TH cell clonotypes in nasal polyp tissue depicted highly compartmentalized clonal expansions in effector CD4+ T cells including CD4+ CTL and TH2 cells.(簡(jiǎn)單的講,就是克隆expansions楼誓,最好是疾病和對(duì)照的對(duì)比結(jié)果)玉锌。
圖片的橫坐標(biāo)是克隆的比例,縱坐標(biāo)是細(xì)胞的比例疟羹,曲線一開(kāi)始越陡峭主守,說(shuō)明前幾種克隆型占據(jù)了細(xì)胞的大多數(shù),也就是存在克隆的expansions榄融,對(duì)比看效果會(huì)更好参淫。
好了,今天我們學(xué)習(xí)一些簡(jiǎn)單的知識(shí)愧杯,大家學(xué)習(xí)一下涎才,用在自己的分析上,學(xué)以致用力九,逐步成長(zhǎng)耍铜。
生活很好邑闺,等你超越