Last updated: 2023-05-26

Checks: 5 1

Knit directory: LungCancer_SotilloLab/analysis/

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Load packages and dataset

Packages

#package
library(SummarizedExperiment)
library(PHONEMeS) #PHONEMeS-ILP
library(BioNet)
library(OmnipathR)
library(hash)
library(MultiAssayExperiment)
library(PhosR)
library(directPA)
library(tidyverse)
source("../code/utils.R")
knitr::opts_chunk$set(warning = FALSE, message = FALSE, autodep = TRUE)
data(PhosphoSitePlus)
load("../output/allResList_RUN5_timeBased.RData")

Using Decoupler for estimating kinase activity (for Figure 6A)

Preprocessing

Construct a mouse version of phonemesPKN

### Construct kinase-substrate interaction network
omnipath_ptm <- get_signed_ptms(enzsub = import_omnipath_enzsub(organism = 10090),
                        interactions = import_omnipath_interactions(organism = 10090))
omnipath_ptm <- omnipath_ptm[omnipath_ptm$modification %in% c("dephosphorylation", "phosphorylation"), ]

# Filter out ProtMapper
omnipath_ptm_filtered <- omnipath_ptm %>%
  dplyr::filter(!(stringr::str_detect(omnipath_ptm$source, "ProtMapper") & n_resources == 1))

# select target (substrate_genesymbol) and source (enzyme_genesymbol)
KSN <- omnipath_ptm_filtered[, c(4, 3)]

# add phosphorylation site to target
KSN$substrate_genesymbol <- paste(KSN$substrate_genesymbol, omnipath_ptm_filtered$residue_type, sep = "_")
KSN$substrate_genesymbol <- paste(KSN$substrate_genesymbol, omnipath_ptm_filtered$residue_offset, sep = "")

# set direction and likelihood of interaction
KSN$mor <- ifelse(omnipath_ptm_filtered$modification == "phosphorylation", 1, -1)
KSN$likelihood <- 1

# we remove ambiguous modes of regulations
KSN$id <- paste(KSN$substrate_genesymbol, KSN$enzyme_genesymbol, sep = "")
KSN <- KSN[!(duplicated(KSN$id) | duplicated(KSN$id, fromLast = TRUE)), ]
KSN <- KSN[, -5]

# rename KSN to fit decoupler format
names(KSN)[1:3] <- c("target", "source", "interaction")
KSN <- KSN[c("source", "interaction", "target")]

phonemesPKN <- KSN %>% filter(interaction ==1)
#rm(KSN, omnipath_ptm, omnipath_ptm_filtered, omnipath_sd, omniR, sif)

Using Decoupler to estimate kinase activities

Function for calculating kinase scores

calcKinaseScore <- function(resTab, phonemesPKN, pCut = 0.05, ifFDR = FALSE) {
  
  decoupler_network <- phonemesPKN %>% 
    dplyr::rename("mor" = interaction) %>% 
    tibble::add_column("likelihood" = 1)
  
  # get differential phosphorylation sites
  resTab <- resTab %>%
    arrange(pval) %>% distinct(site, .keep_all = TRUE)
  
  if (ifFDR) {
    resTab <- mutate(resTab, pval = adj_pval)
  }
  
  inputTab <- filter(resTab, pval <= pCut, site %in% phonemesPKN$target) %>%
    select(site, t_statistic) %>% dplyr::rename(t = t_statistic) %>%
    data.frame() %>% column_to_rownames("site")
  
  decoupler_network <- decoupleR::intersect_regulons(mat = inputTab, 
                                                   network = decoupler_network, 
                                                   .source = source, 
                                                   .target = target, 
                                                   minsize = 5)
  
  correlated_regulons <- decoupleR::check_corr(decoupler_network) %>% 
    dplyr::filter(correlation >= 0.9)
   
  decoupler_network <- decoupler_network %>% 
    dplyr::filter(!source %in% correlated_regulons$source.2)
  
  kinase_activity <- decoupleR::run_wmean(mat = as.matrix(inputTab), 
                                      network = decoupler_network,
                                      sparse = FALSE)
  
  return(kinase_activity)
}

Calculate kinase activity score for each time point and comparison

phosRes <- allResList$diffRatio
kinResTab <- lapply(names(phosRes),function(eachTime) {
   lapply(unique(phosRes[[eachTime]]$compare), function(eachCompare) {
     resTab <- phosRes[[eachTime]] %>% filter(compare == eachCompare)
     calcKinaseScore(resTab,phonemesPKN, pCut = 1, ifFDR = FALSE) %>% mutate(time = eachTime, compare = eachCompare)
   }) %>% bind_rows() 
}) %>% bind_rows() %>%
  filter(statistic == "wmean") %>%
  select(-statistic, -condition) %>%
  mutate(timeCompare = paste0(time, "_", compare))

scoreTab <- select(kinResTab, source, score, timeCompare)
pTab <- select(kinResTab, source, p_value, timeCompare)

#add zero to not estimated values
fullTab <- scoreTab %>%
  pivot_wider(names_from = timeCompare, values_from = score) %>%
  mutate(across(starts_with("time_"), replace_na, 0)) %>%
  pivot_longer(starts_with("time_"), names_to = "timeCompare", values_to = "score" ) %>%
  left_join(distinct(kinResTab, timeCompare, time, compare), by = "timeCompare") %>%
  left_join(pTab, by = c("source","timeCompare")) %>%
  mutate(p_value = ifelse(is.na(p_value),1,p_value)) %>%
  dplyr::rename(kinase = "source")

Table output of kinase activity scores

writexl::write_xlsx(select(fullTab, kinase, score, time, compare, p_value), "../docs/kinase_activity_decoupler.xlsx")

kinase_activity_decoupler.xlsx

Heatmap plot for kinase activity

plotTab <- mutate(fullTab, sig = ifelse(p_value <=0.05, "*", ""))%>%
  mutate(time = paste0(str_remove(time,"time_"), "h"))
ggplot(plotTab, aes(x=time, y = kinase,fill = score)) +
  geom_tile() +
  geom_text(aes(label = sig), vjust = 0.5) +
  facet_wrap(~compare) +
  scale_fill_gradient2(low = "blue", high = "red", mid = "white", midpoint = 0) +
  scale_x_discrete(expand = c(0,0)) +scale_y_discrete(expand = c(0,0)) +
  theme_bw() +
  ylab("Kinase")

ggsave("../docs/kinase_decoupler_heatmap.pdf", height = 15, width = 10)

PDF file: kinase_decoupler_heatmap.pdf

KinasePA analysis for estimating difference in kinase activity scores (perhaps for a supplementary plot)

Phospho at 10min

10 mins

Differential results

resList <- allResList$diffRatio$time_0.17 %>%
  filter(compare %in% c("combo_DMSO","brigatinib_DMSO", "dasatinib_DMSO")) 

phosTab <- resList %>%
  mutate(site = paste0(str_replace(toupper(site),"_",";"),";")) %>%
  select(site, t_statistic, compare) %>% 
  arrange(abs(t_statistic)) %>%
  distinct(site, compare,.keep_all = TRUE) %>%
  pivot_wider(names_from = compare, values_from = t_statistic) %>%
  data.frame() %>% column_to_rownames("site")

Pair-wise comparison

Combo versus brigatinib

pdf("../docs/DPA_combo_briga_10min.pdf", height = 9, width = 9)
z1 <- perturbPlot2d(Tc=phosTab[,c(1,2)], annotation=PhosphoSite.mouse, cex=0.5, xlim=c(-8, 8), ylim=c(-8, 8), main="Combo versus brigatinib (10 min)")
dev.off()
quartz_off_screen 
                2 

PDF file: DPA_combo_briga_10min.pdf

Combo versus dasatinib

pdf("../docs/DPA_combo_dasa_10min.pdf", height = 9, width = 9)
z1 <- perturbPlot2d(Tc=phosTab[,c(1,3)], annotation=PhosphoSite.mouse, cex=0.5, xlim=c(-8, 8), ylim=c(-8, 8), main="Combo versus dasatinib (10 min)")
dev.off()
quartz_off_screen 
                2 

PDF file: DPA_combo_dasa_10min.pdf

16 h

Differential results

resList <- allResList$diffRatio$time_16 %>%
  filter(compare %in% c("combo_DMSO","brigatinib_DMSO","dasatinib_DMSO"))

phosTab <- resList %>%
  mutate(site = paste0(str_replace(toupper(site),"_",";"),";")) %>%
  select(site, t_statistic, compare) %>% 
  arrange(abs(t_statistic)) %>%
  distinct(site, compare,.keep_all = TRUE) %>%
  pivot_wider(names_from = compare, values_from = t_statistic) %>%
  data.frame() %>% column_to_rownames("site")

phosTab <- phosTab[,c("combo_DMSO","brigatinib_DMSO","dasatinib_DMSO")]

Combo versus brigatinib

pdf("../docs/DPA_combo_briga_16h.pdf", height = 9, width = 9)

z1 <- perturbPlot2d(Tc=phosTab[,c(1,2)], annotation=PhosphoSite.mouse, cex=0.5, xlim=c(-8, 8), ylim=c(-8, 8), main="Combo versus brigatinib (16h)")
dev.off()
quartz_off_screen 
                2 

PDF file: DPA_combo_briga_16h.pdf

Combo versus dasatinib

pdf("../docs/DPA_combo_dasa_16h.pdf", height = 9, width = 9)
z1 <- perturbPlot2d(Tc=phosTab[,c(1,3)], annotation=PhosphoSite.mouse, cex=0.5, xlim=c(-8, 8), ylim=c(-8, 8), main="Combo versus dasatinib (16h)")
dev.off()
quartz_off_screen 
                2 

PDF file: DPA_combo_dasa_16h.pdf


sessionInfo()
R version 4.2.0 (2022-04-22)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Big Sur/Monterey 10.16

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/4.2/Resources/lib/libRblas.0.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/4.2/Resources/lib/libRlapack.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

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

other attached packages:
 [1] forcats_0.5.1               stringr_1.4.1              
 [3] dplyr_1.0.9                 purrr_0.3.4                
 [5] readr_2.1.2                 tidyr_1.2.0                
 [7] tibble_3.1.8                ggplot2_3.4.1              
 [9] tidyverse_1.3.2             directPA_1.5               
[11] PhosR_1.6.0                 MultiAssayExperiment_1.22.0
[13] hash_2.2.6.2                OmnipathR_3.4.7            
[15] BioNet_1.56.0               RBGL_1.72.0                
[17] graph_1.74.0                PHONEMeS_2.0.1             
[19] SummarizedExperiment_1.26.1 Biobase_2.56.0             
[21] GenomicRanges_1.48.0        GenomeInfoDb_1.32.2        
[23] IRanges_2.30.0              S4Vectors_0.34.0           
[25] BiocGenerics_0.42.0         MatrixGenerics_1.8.1       
[27] matrixStats_0.62.0         

loaded via a namespace (and not attached):
  [1] readxl_1.4.0           backports_1.4.1        circlize_0.4.15       
  [4] workflowr_1.7.0        systemfonts_1.0.4      plyr_1.8.7            
  [7] igraph_1.3.4           digest_0.6.30          htmltools_0.5.4       
 [10] viridis_0.6.2          fansi_1.0.3            magrittr_2.0.3        
 [13] checkmate_2.1.0        memoise_2.0.1          googlesheets4_1.0.0   
 [16] tzdb_0.3.0             limma_3.52.2           Biostrings_2.64.0     
 [19] modelr_0.1.8           vroom_1.5.7            prettyunits_1.1.1     
 [22] colorspace_2.0-3       rvest_1.0.2            blob_1.2.3            
 [25] rappdirs_0.3.3         textshaping_0.3.6      haven_2.5.0           
 [28] xfun_0.31              crayon_1.5.2           RCurl_1.98-1.7        
 [31] jsonlite_1.8.3         glue_1.6.2             ruv_0.9.7.1           
 [34] gtable_0.3.0           gargle_1.2.0           zlibbioc_1.42.0       
 [37] XVector_0.36.0         DelayedArray_0.22.0    car_3.1-0             
 [40] shape_1.4.6            decoupleR_2.2.2        abind_1.4-5           
 [43] scales_1.2.0           pheatmap_1.0.12        DBI_1.1.3             
 [46] GGally_2.1.2           rstatix_0.7.0          Rcpp_1.0.9            
 [49] viridisLite_0.4.0      progress_1.2.2         bit_4.0.4             
 [52] proxy_0.4-27           preprocessCore_1.58.0  httr_1.4.3            
 [55] RColorBrewer_1.1-3     calibrate_1.7.7        ellipsis_0.3.2        
 [58] farver_2.1.1           pkgconfig_2.0.3        reshape_0.8.9         
 [61] sass_0.4.2             dbplyr_2.2.1           utf8_1.2.2            
 [64] labeling_0.4.2         tidyselect_1.1.2       rlang_1.0.6           
 [67] reshape2_1.4.4         later_1.3.0            AnnotationDbi_1.58.0  
 [70] munsell_0.5.0          cellranger_1.1.0       tools_4.2.0           
 [73] cachem_1.0.6           cli_3.4.1              generics_0.1.3        
 [76] RSQLite_2.2.15         statnet.common_4.6.0   broom_1.0.0           
 [79] evaluate_0.15          fastmap_1.1.0          ggdendro_0.1.23       
 [82] ragg_1.2.2             yaml_2.3.5             knitr_1.39            
 [85] bit64_4.0.5            fs_1.5.2               KEGGREST_1.36.3       
 [88] dendextend_1.16.0      xml2_1.3.3             compiler_4.2.0        
 [91] rstudioapi_0.13        curl_4.3.2             png_0.1-7             
 [94] e1071_1.7-11           ggsignif_0.6.3         reprex_2.0.1          
 [97] bslib_0.4.1            stringi_1.7.8          highr_0.9             
[100] logger_0.2.2           lattice_0.20-45        Matrix_1.5-4          
[103] vctrs_0.5.2            pillar_1.8.0           lifecycle_1.0.3       
[106] jquerylib_0.1.4        GlobalOptions_0.1.2    bitops_1.0-7          
[109] httpuv_1.6.6           R6_2.5.1               pcaMethods_1.88.0     
[112] promises_1.2.0.1       network_1.17.2         gridExtra_2.3         
[115] writexl_1.4.0          MASS_7.3-58            assertthat_0.2.1      
[118] rprojroot_2.0.3        withr_2.5.0            GenomeInfoDbData_1.2.8
[121] hms_1.1.1              grid_4.2.0             coda_0.19-4           
[124] class_7.3-20           rmarkdown_2.14         carData_3.0-5         
[127] googledrive_2.0.0      git2r_0.30.1           ggpubr_0.4.0          
[130] lubridate_1.8.0