Examples of Accessible Functions

Firstly, assume you have already installed UCSCXenaShiny package.

library(UCSCXenaShiny)
#> =========================================================================================
#> UCSCXenaShiny version 2.2.0
#> Project URL: https://github.com/openbiox/UCSCXenaShiny
#> Usages: https://openbiox.github.io/UCSCXenaShiny/
#> 
#> If you use it in published research, please cite:
#>   Shensuo Li, Yuzhong Peng, Minjun Chen, Yankun Zhao, Yi Xiong, Jianfeng Li, Peng Luo, 
#>   Haitao Wang, Fei Zhao, Qi Zhao, Yanru Cui, Sujun Chen, Jian-Guo Zhou, Shixiang Wang,  
#>   Facilitating integrative and personalized oncology omics analysis with UCSCXenaShiny, 
#>   Communications Biology, 1200 (2024),  https://doi.org/10.1038/s42003-024-06891-2
#> =========================================================================================
#>                               --Enjoy it--

Tutorial Book

From UCSCXenaShiny v2, we provide a comprehensive tutorial book for introducing how to use the datasets, functions, and the Shiny application.

Fetch Data

We provide function to retrieve multi-dimensional data including genomic, epigenomic, transcriptomic, and proteomic data from TCGA (note, this actually contains data from TCGA/TARGET/GTEx databases) and CCLE Pan-Cancer dataset for single identifier (e.g., gene, protein).

Check parameters:

args(query_pancan_value)
#> function (molecule, data_type = c("mRNA", "transcript", "protein", 
#>     "mutation", "cnv", "methylation", "miRNA", "fusion", "promoter", 
#>     "APOBEC"), database = c("toil", "ccle", "pcawg"), reset_id = NULL, 
#>     opt_pancan = .opt_pancan) 
#> NULL

For TCGA gene expression data, we use Xena dataset with ID TcgaTargetGtex_rsem_gene_tpm which includes 19131 samples with tumor tissue samples and normal tissue samples. The expression value unit is log2(tpm+0.001).

Let’s check several examples.

Fetch Gene Expression

gene_expr <- query_pancan_value("TP53")
#> =========================================================================================
#> UCSCXenaTools version 1.4.8
#> Project URL: https://github.com/ropensci/UCSCXenaTools
#> Usages: https://cran.r-project.org/web/packages/UCSCXenaTools/vignettes/USCSXenaTools.html
#> 
#> If you use it in published research, please cite:
#> Wang et al., (2019). The UCSCXenaTools R package: a toolkit for accessing genomics data
#>   from UCSC Xena platform, from cancer multi-omics to single-cell RNA-seq.
#>   Journal of Open Source Software, 4(40), 1627, https://doi.org/10.21105/joss.01627
#> =========================================================================================
#>                               --Enjoy it--
#> Try querying data #1
#> Try querying data #2
#> Try querying data #3
#> Try querying data #4
#> Try querying data #5
#> Warning in value[[3L]](cond): Tried 5 times but failed, please check URL or
#> your internet connection or try it later!
#> Saving data to file /tmp/RtmpA2DCMA/UCSCXenaShiny/4822f991b17cbdab3831c455be7620b2.rds
#> More info about dataset please run following commands:
#>   library(UCSCXenaTools)
#>   XenaGenerate(subset = XenaDatasets == "TcgaTargetGtex_rsem_gene_tpm") %>% XenaBrowse()

str(gene_expr)
#> List of 2
#>  $ expression: NULL
#>  $ unit      : chr "log2(tpm+0.001)"

Fetch Transcript Expression

transcript_expr <- query_pancan_value("ENST00000000233", data_type = "transcript")

Fetch Gene CNV

gene_cnv <- query_pancan_value("TP53", data_type = "cnv")

Fetch Gene Mutation

gene_mut <- query_pancan_value("TP53", data_type = "mutation")

Fetch miRNA mature strand expression

miRNA_expr <- query_pancan_value("hsa-let-7a-2-3p", data_type = "miRNA")

Data Visualization

Visualize Single Gene Expression in PANCAN Dataset

vis_toil_TvsN(Gene = "TP53", Mode = "Violinplot", Show.P.value = FALSE, Show.P.label = FALSE)
#> Reading cache data /tmp/RtmpA2DCMA/UCSCXenaShiny/4822f991b17cbdab3831c455be7620b2.rds
#> Try querying data #1
#> Try querying data #2
#> Try querying data #3
#> Try querying data #4
#> Try querying data #5
#> Warning in value[[3L]](cond): Tried 5 times but failed, please check URL or
#> your internet connection or try it later!
#> Saving data to file /tmp/RtmpA2DCMA/UCSCXenaShiny/4822f991b17cbdab3831c455be7620b2.rds
#> More info about dataset please run following commands:
#>   library(UCSCXenaTools)
#>   XenaGenerate(subset = XenaDatasets == "TcgaTargetGtex_rsem_gene_tpm") %>% XenaBrowse()
#> Warning in vis_toil_TvsN(Gene = "TP53", Mode = "Violinplot", Show.P.value =
#> FALSE, : No data available
#> NULL

Compare Gene Expression Level in Single Cancer Type

vis_toil_TvsN_cancer(
  Gene = "TP53",
  Mode = "Violinplot",
  Show.P.value = TRUE,
  Show.P.label = TRUE,
  Method = "wilcox.test",
  values = c("#DF2020", "#DDDF21"),
  TCGA.only = FALSE,
  Cancer = "ACC"
)
#> Reading cache data /tmp/RtmpA2DCMA/UCSCXenaShiny/4822f991b17cbdab3831c455be7620b2.rds
#> Try querying data #1
#> Try querying data #2
#> Try querying data #3
#> Try querying data #4
#> Try querying data #5
#> Warning in value[[3L]](cond): Tried 5 times but failed, please check URL or
#> your internet connection or try it later!
#> Saving data to file /tmp/RtmpA2DCMA/UCSCXenaShiny/4822f991b17cbdab3831c455be7620b2.rds
#> More info about dataset please run following commands:
#>   library(UCSCXenaTools)
#>   XenaGenerate(subset = XenaDatasets == "TcgaTargetGtex_rsem_gene_tpm") %>% XenaBrowse()
#> Warning in vis_toil_TvsN_cancer(Gene = "TP53", Mode = "Violinplot",
#> Show.P.value = TRUE, : No data available
#> NULL

Compare Gene Expression Level in Different Anatomic Regions

This function needs gganatogram package, which is not on CRAN. Please install it before using this function.

if (require("gganatogram")) {
  vis_pancan_anatomy(Gene = "TP53", Gender = c("Female", "Male"), option = "D")
}

Click to see the output

Visualize Relationship between Gene Expression and Prognosis in the PANCAN Dataset

vis_unicox_tree(
  Gene = "TP53",
  measure = "OS",
  values = c("grey", "#E31A1C", "#377DB8")
)
#> Reading cache data /tmp/RtmpA2DCMA/UCSCXenaShiny/4822f991b17cbdab3831c455be7620b2.rds
#> Try querying data #1
#> Try querying data #2
#> Try querying data #3
#> Try querying data #4
#> Try querying data #5
#> Warning in value[[3L]](cond): Tried 5 times but failed, please check URL or
#> your internet connection or try it later!
#> Saving data to file /tmp/RtmpA2DCMA/UCSCXenaShiny/4822f991b17cbdab3831c455be7620b2.rds
#> More info about dataset please run following commands:
#>   library(UCSCXenaTools)
#>   XenaGenerate(subset = XenaDatasets == "TcgaTargetGtex_rsem_gene_tpm") %>% XenaBrowse()
#> Warning in vis_unicox_tree(Gene = "TP53", measure = "OS", values = c("grey", :
#> No data available
#> NULL

Other Functions and Data

All exported data and functions are organized at here.