Last updated: 2021-02-12

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Knit directory: melanoma_publication_old_data/

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Rmd 2e443a5 toobiwankenobi 2021-02-09 remove files that are not needed

Introduction

Preparations

knitr::opts_chunk$set(echo = TRUE, message= FALSE)
knitr::opts_knit$set(root.dir = rprojroot::find_rstudio_root_file())

Load libraries

sapply(list.files("code/helper_functions", full.names = TRUE), source)
        code/helper_functions/calculateSummary.R
value   ?                                       
visible FALSE                                   
        code/helper_functions/censor_dat.R
value   ?                                 
visible FALSE                             
        code/helper_functions/detect_mRNA_expression.R
value   ?                                             
visible FALSE                                         
        code/helper_functions/DistanceToClusterCenter.R
value   ?                                              
visible FALSE                                          
        code/helper_functions/findMilieu.R code/helper_functions/findPatch.R
value   ?                                  ?                                
visible FALSE                              FALSE                            
        code/helper_functions/getInfoFromString.R
value   ?                                        
visible FALSE                                    
        code/helper_functions/getSpotnumber.R
value   ?                                    
visible FALSE                                
        code/helper_functions/plotCellCounts.R
value   ?                                     
visible FALSE                                 
        code/helper_functions/plotCellFractions.R
value   ?                                        
visible FALSE                                    
        code/helper_functions/plotDist.R
value   ?                               
visible FALSE                           
        code/helper_functions/scatter_function.R
value   ?                                       
visible FALSE                                   
        code/helper_functions/sceChecks.R
value   ?                                
visible FALSE                            
        code/helper_functions/validityChecks.R
value   ?                                     
visible FALSE                                 
library(ComplexHeatmap)
library(SingleCellExperiment)
library(ggplot2)
library(ggrepel)
library(dplyr)
library(data.table)
library(stringr)
library(sf)
library(concaveman)
library(RANN)

Load data

sce = readRDS(file = "data/data_for_analysis/sce_RNA.rds")

Chemokine Patch Detection and Analysis

Detect Pachtes for Single Chemokines

Here we use our patch detection algorithm to detect patches of cells that express a certain chemokine. The following settings are used: - We loop through all chemokines. If a cell produces mulitple chemokines, each chemokine is treated in a separate round of patch detection. - min_clust_size: 1, even a single cell without producing neighbours is considered a patch. In the next chunk, we select only patches that at least contain 10 producing cells. - distance patch neighbours: 25µm - expansion milieu: 30µm

start = Sys.time()
cur_sce <- data.frame(colData(sce))
# loop through all chemokines
for(i in names(cur_sce[,grepl(glob2rx("C*L*"),names(cur_sce))])) {

  # find clusters
  sce <- findPatch(input_sce = sce, 
                    IDs_of_interest = cur_sce[cur_sce[,names(cur_sce) == i] == 1,]$cellID, 
                    'cellID', 
                    'Center_X', 'Center_Y', 
                    'ImageNumber', 
                    distance = 25, 
                    min_clust_size = 1,
                    output_colname = paste(tolower(i), "only_clust", sep = ""))

  
  # define cells within/surrounding a cluster of chemokine producing cells
  sce <- findMilieu(sce, 
                     'cellID', 
                     'Center_X', 
                     'Center_Y', 
                     'ImageNumber', 
                     paste(tolower(i), "only_clust", sep = ""), 
                     distance = 30,
                     output_colname = paste(tolower(i), "only_comm", sep = ""))
} 
Time difference of 5.274443 secs
[1] "patches successfully added to sce object"
Time difference of 15.56936 mins
[1] "milieus successfully added to sce object"
Time difference of 4.553741 secs
[1] "patches successfully added to sce object"
Time difference of 11.55816 mins
[1] "milieus successfully added to sce object"
Time difference of 3.889479 secs
[1] "patches successfully added to sce object"
Time difference of 11.36563 mins
[1] "milieus successfully added to sce object"
Time difference of 16.43745 secs
[1] "patches successfully added to sce object"
Time difference of 18.64624 mins
[1] "milieus successfully added to sce object"
Time difference of 8.968791 secs
[1] "patches successfully added to sce object"
Time difference of 18.86026 mins
[1] "milieus successfully added to sce object"
Time difference of 11.36862 secs
[1] "patches successfully added to sce object"
Time difference of 17.36886 mins
[1] "milieus successfully added to sce object"
Time difference of 11.9613 secs
[1] "patches successfully added to sce object"
Time difference of 25.63973 mins
[1] "milieus successfully added to sce object"
Time difference of 1.488697 secs
[1] "patches successfully added to sce object"
Time difference of 5.464931 mins
[1] "milieus successfully added to sce object"
Time difference of 16.08479 secs
[1] "patches successfully added to sce object"
Time difference of 15.67529 mins
[1] "milieus successfully added to sce object"
Time difference of 0.8059049 secs
[1] "patches successfully added to sce object"
Time difference of 3.03025 mins
[1] "milieus successfully added to sce object"
Time difference of 7.857941 secs
[1] "patches successfully added to sce object"
Time difference of 11.07932 mins
[1] "milieus successfully added to sce object"
end = Sys.time()
print(end-start)
Time difference of 2.595871 hours

Define pure clusters that contain more than 10 producing cells

Here we select patches which contain at least 10 producing cells. We then assign a to all milieu cells from that patch the milieu ID that was already assigned above. All smaller patches get a 0.

cur_sce <- data.frame(colData(sce))

for(i in names(cur_sce[,grepl(glob2rx("*only_clust"),names(cur_sce))])) {
 
   # select cluster with more than 10 producing cells
  clust <- cur_sce %>%
    group_by_at(i) %>%
    summarise(n=n()) %>%
    distinct_at(i, .keep_all = TRUE) %>%
    filter(n>10)
  
  # remove cluster 0 (non-producing cells)
  clust <- clust[clust[,i] > 0,]
  
  # create new column
  name <- str_split(i, "_")[[1]][1]
  name <- paste0(name,"_pure")
  cur_sce[,name] <- 0
  
  # add cluster id to new column for all cells (producing AND non-producing) that are part of that community
  if(nrow(clust) > 0){
    colname_comm <- paste0(str_split(i, "_")[[1]][1],"_comm")
    cur_sce[cur_sce[,colname_comm] %in% clust[,i][[1]], name] <- as.numeric(cur_sce[cur_sce[,colname_comm] %in% clust[,i][[1]], colname_comm])
  }
}
Warning: The `i` argument of ``[`()` can't be a matrix as of tibble 3.0.0.
Convert to a vector.
This warning is displayed once every 8 hours.
Call `lifecycle::last_warnings()` to see where this warning was generated.
# add to sce
sce$ccl4_pure <- cur_sce$ccl4only_pure
sce$ccl18_pure <- cur_sce$ccl18only_pure
sce$cxcl8_pure <- cur_sce$cxcl8only_pure
sce$cxcl10_pure <- cur_sce$cxcl10only_pure
sce$cxcl12_pure <- cur_sce$cxcl12only_pure
sce$cxcl13_pure <- cur_sce$cxcl13only_pure
sce$ccl2_pure <- cur_sce$ccl2only_pure
sce$ccl22_pure <- cur_sce$ccl22only_pure
sce$cxcl9_pure <- cur_sce$cxcl9only_pure
sce$ccl8_pure <- cur_sce$ccl8only_pure
sce$ccl19_pure <- cur_sce$ccl19only_pure

Save SCE

saveRDS(sce, file = "data/data_for_analysis/sce_RNA.rds")

sessionInfo()
R version 4.0.3 (2020-10-10)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 20.04 LTS

Matrix products: default
BLAS/LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/libopenblasp-r0.3.8.so

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C              
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=C             
 [7] LC_PAPER=en_US.UTF-8       LC_NAME=C                 
 [9] LC_ADDRESS=C               LC_TELEPHONE=C            
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
 [1] parallel  stats4    grid      stats     graphics  grDevices utils    
 [8] datasets  methods   base     

other attached packages:
 [1] RANN_2.6.1                  concaveman_1.1.0           
 [3] sf_0.9-7                    stringr_1.4.0              
 [5] data.table_1.13.6           dplyr_1.0.2                
 [7] ggrepel_0.9.0               ggplot2_3.3.3              
 [9] SingleCellExperiment_1.12.0 SummarizedExperiment_1.20.0
[11] Biobase_2.50.0              GenomicRanges_1.42.0       
[13] GenomeInfoDb_1.26.2         IRanges_2.24.1             
[15] S4Vectors_0.28.1            BiocGenerics_0.36.0        
[17] MatrixGenerics_1.2.0        matrixStats_0.57.0         
[19] ComplexHeatmap_2.4.3        workflowr_1.6.2            

loaded via a namespace (and not attached):
 [1] jsonlite_1.7.2         GenomeInfoDbData_1.2.4 yaml_2.2.1            
 [4] pillar_1.4.7           lattice_0.20-41        glue_1.4.2            
 [7] digest_0.6.27          RColorBrewer_1.1-2     promises_1.1.1        
[10] XVector_0.30.0         colorspace_2.0-0       htmltools_0.5.0       
[13] httpuv_1.5.4           Matrix_1.3-2           pkgconfig_2.0.3       
[16] GetoptLong_1.0.5       zlibbioc_1.36.0        purrr_0.3.4           
[19] scales_1.1.1           whisker_0.4            later_1.1.0.1         
[22] git2r_0.28.0           tibble_3.0.4           generics_0.1.0        
[25] ellipsis_0.3.1         withr_2.3.0            magrittr_2.0.1        
[28] crayon_1.3.4           evaluate_0.14          fs_1.5.0              
[31] class_7.3-17           tools_4.0.3            GlobalOptions_0.1.2   
[34] lifecycle_0.2.0        V8_3.4.0               munsell_0.5.0         
[37] cluster_2.1.0          DelayedArray_0.16.0    compiler_4.0.3        
[40] e1071_1.7-4            rlang_0.4.10           classInt_0.4-3        
[43] units_0.6-7            RCurl_1.98-1.2         rstudioapi_0.13       
[46] rjson_0.2.20           circlize_0.4.12        bitops_1.0-6          
[49] rmarkdown_2.6          gtable_0.3.0           curl_4.3              
[52] DBI_1.1.0              R6_2.5.0               knitr_1.30            
[55] clue_0.3-58            rprojroot_2.0.2        KernSmooth_2.23-18    
[58] shape_1.4.5            stringi_1.5.3          Rcpp_1.0.5            
[61] vctrs_0.3.6            png_0.1-7              tidyselect_1.1.0      
[64] xfun_0.20