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๐Ÿ“Œ AC Cardiotoxicity

๐Ÿ“Œ Load Required Libraries

library(tidyverse) 
library(ggfortify)
library(cluster)
library(edgeR)
library(limma)
library(Homo.sapiens)
library(BiocParallel)
library(qvalue)
library(pheatmap)
library(clusterProfiler)
library(AnnotationDbi)
library(org.Hs.eg.db)
library(RColorBrewer)
library(readr)
library(TxDb.Hsapiens.UCSC.hg38.knownGene)
library(ComplexHeatmap)
library(circlize)
library(grid)
library(reshape2)
library(dplyr)

# Load UCSC transcript database
txdb <- TxDb.Hsapiens.UCSC.hg38.knownGene

๐Ÿ“Œ Read and Process DEG Data

Entrez_IDs <- c(
  6272, 8029, 11128, 79899, 54477, 121665, 5095, 22863, 57161, 4692,
  8214, 23151, 56606, 108, 22999, 56895, 9603, 3181, 4023, 10499,
  92949, 4363, 10057, 5243, 5244, 5880, 1535, 2950, 847, 5447,
  3038, 3077, 4846, 3958, 23327, 29899, 23155, 80856, 55020, 78996,
  23262, 150383, 9620, 79730, 344595, 5066, 6251, 3482, 9588, 339416,
  7292, 55157, 87769, 23409, 720, 3107, 54535, 1590, 80059, 7991,
  57110, 8803, 323, 54826, 5916, 23371, 283337, 64078, 80010, 1933,
  10818, 51020
)

# Load DEG data
load_deg <- function(name) {
  read.csv(paste0("data/DEGs/Toptable_", name, ".csv"))
}

samples <- c("CX_0.1_3", "CX_0.1_24", "CX_0.1_48", 
             "CX_0.5_3", "CX_0.5_24", "CX_0.5_48",
             "DOX_0.1_3", "DOX_0.1_24", "DOX_0.1_48", 
             "DOX_0.5_3", "DOX_0.5_24", "DOX_0.5_48")

deg_list <- lapply(samples, load_deg)
names(deg_list) <- samples

# Subset and annotate DEG tables
get_subset <- function(df, name) {
  parts <- strsplit(name, "_")[[1]]
  df %>%
    filter(Entrez_ID %in% Entrez_IDs) %>%
    dplyr::select(Entrez_ID, logFC, adj.P.Val) %>%
    mutate(Drug = parts[1], Conc = parts[2], Time = parts[3])
}

combined_data <- bind_rows(mapply(get_subset, deg_list, names(deg_list), SIMPLIFY = FALSE))

# Add Gene symbol and significance
combined_data <- combined_data %>%
  mutate(Gene = mapIds(org.Hs.eg.db, keys = as.character(Entrez_ID),
                       column = "SYMBOL", keytype = "ENTREZID", multiVals = "first"),
         Significance = ifelse(adj.P.Val < 0.05, "*", ""))

๐Ÿ“Œ rsID + Study annotation

๐Ÿ“ŒCreate a matrix and heatmap

ha_top <- HeatmapAnnotation(
  Drug = drug,
  Conc = conc,
  Time = time,
  col = list(
    Drug = c("CX" = "blue", "DOX" = "red"),
    Conc = c("0.1" = "lightgreen", "0.5" = "darkgreen"),
    Time = c("3" = "yellow", "24" = "orange", "48" = "purple")
  ),
  annotation_height = unit(c(2, 2, 2), "cm")
)

# Row annotation
rsid_factor <- factor(rsid_info$rsID)
study_factor <- factor(rsid_info$Study, levels = c("GWAS1", "GWAS2", "TWAS"))

rsid_colors <- setNames(rainbow(length(levels(rsid_factor))), levels(rsid_factor))
study_colors <- setNames(RColorBrewer::brewer.pal(length(levels(study_factor)), "Set2"), levels(study_factor))

ha_left <- rowAnnotation(
  rsID = anno_text(rsid_info$rsID, location = 0, just = "left", gp = gpar(fontsize = 9)),
  rsID_color = rsid_factor,
  Study = study_factor,
  col = list(
    rsID_color = rsid_colors,
    Study = study_colors
  ),
  show_legend = c(rsID = FALSE, rsID_color = FALSE, Study = TRUE),
  annotation_name_side = "top",
  annotation_width = unit(c(4.3, 0.25, 0.25), "cm")
)

# Draw final heatmap
Heatmap(logFC_matrix,
        name = "logFC",
        top_annotation = ha_top,
        left_annotation = ha_left,
        cluster_columns = FALSE,
        cluster_rows = FALSE,
        show_row_names = TRUE,
        show_column_names = FALSE,
        cell_fun = function(j, i, x, y, width, height, fill) {
          grid.text(signif_matrix[i, j], x, y, gp = gpar(fontsize = 9))
        },
        column_title = "AC Toxicity-Associated Genes: CX-5461 vs DOX",
        column_title_gp = gpar(fontsize = 14, fontface = "bold")
)

Version Author Date
c70ab13 sayanpaul01 2025-05-06
2f74123 sayanpaul01 2025-04-24
910b6fb sayanpaul01 2025-04-20

๐Ÿ“Œ DOX Cardiotoxicity

# Load necessary libraries
library(tidyverse)
library(ComplexHeatmap)
library(circlize)
library(org.Hs.eg.db)
library(reshape2)
library(grid)

# Set Entrez ID order
Entrez_IDs <- c(847, 873, 2064, 2878, 2944, 3038, 4846, 51196, 5880, 6687,
                7799, 4292, 5916, 3077, 51310, 9154, 64078, 5244, 10057, 10060,
                89845, 56853, 4625, 1573, 79890)

# Load annotated gene table
annotated_genes <- read.csv("data/Annotated_DOX_Gene_Table.csv")

# Load DEG data
CX_0.1_3 <- read.csv("data/DEGs/Toptable_CX_0.1_3.csv")
CX_0.1_24 <- read.csv("data/DEGs/Toptable_CX_0.1_24.csv")
CX_0.1_48 <- read.csv("data/DEGs/Toptable_CX_0.1_48.csv")
CX_0.5_3 <- read.csv("data/DEGs/Toptable_CX_0.5_3.csv")
CX_0.5_24 <- read.csv("data/DEGs/Toptable_CX_0.5_24.csv")
CX_0.5_48 <- read.csv("data/DEGs/Toptable_CX_0.5_48.csv")
DOX_0.1_3 <- read.csv("data/DEGs/Toptable_DOX_0.1_3.csv")
DOX_0.1_24 <- read.csv("data/DEGs/Toptable_DOX_0.1_24.csv")
DOX_0.1_48 <- read.csv("data/DEGs/Toptable_DOX_0.1_48.csv")
DOX_0.5_3 <- read.csv("data/DEGs/Toptable_DOX_0.5_3.csv")
DOX_0.5_24 <- read.csv("data/DEGs/Toptable_DOX_0.5_24.csv")
DOX_0.5_48 <- read.csv("data/DEGs/Toptable_DOX_0.5_48.csv")

# Subsetting helper
get_subset <- function(df) {
  df[df$Entrez_ID %in% Entrez_IDs, c("Entrez_ID", "logFC", "adj.P.Val")]
}

# Subset and annotate
add_metadata <- function(data, drug, conc, time) {
  data %>% mutate(Drug = drug, Conc = conc, Time = time)
}

combined_data <- bind_rows(
  add_metadata(get_subset(CX_0.1_3), "CX", 0.1, 3),
  add_metadata(get_subset(CX_0.1_24), "CX", 0.1, 24),
  add_metadata(get_subset(CX_0.1_48), "CX", 0.1, 48),
  add_metadata(get_subset(CX_0.5_3), "CX", 0.5, 3),
  add_metadata(get_subset(CX_0.5_24), "CX", 0.5, 24),
  add_metadata(get_subset(CX_0.5_48), "CX", 0.5, 48),
  add_metadata(get_subset(DOX_0.1_3), "DOX", 0.1, 3),
  add_metadata(get_subset(DOX_0.1_24), "DOX", 0.1, 24),
  add_metadata(get_subset(DOX_0.1_48), "DOX", 0.1, 48),
  add_metadata(get_subset(DOX_0.5_3), "DOX", 0.5, 3),
  add_metadata(get_subset(DOX_0.5_24), "DOX", 0.5, 24),
  add_metadata(get_subset(DOX_0.5_48), "DOX", 0.5, 48)
)

# Add gene symbol and significance
combined_data <- combined_data %>%
  mutate(Gene = mapIds(org.Hs.eg.db, keys = as.character(Entrez_ID),
                       column = "SYMBOL", keytype = "ENTREZID", multiVals = "first"),
         Significance = ifelse(adj.P.Val < 0.05, "*", ""))

# Merge with mechanistic category
combined_data <- left_join(combined_data, annotated_genes, by = c("Entrez_ID" = "ENTREZID"))

# Reorder by Entrez_ID
combined_data$Entrez_ID <- factor(combined_data$Entrez_ID, levels = Entrez_IDs)

# Preserve correct gene order
ordered_genes <- combined_data %>%
  distinct(Entrez_ID, Gene) %>%
  arrange(factor(Entrez_ID, levels = Entrez_IDs)) %>%
  pull(Gene)

# Create logFC and significance matrices
logFC_matrix <- acast(combined_data, Gene ~ paste(Drug, Conc, Time, sep = "_"), value.var = "logFC")
logFC_matrix <- logFC_matrix[ordered_genes, ]

signif_matrix <- acast(combined_data, Gene ~ paste(Drug, Conc, Time, sep = "_"), value.var = "Significance")
signif_matrix <- signif_matrix[ordered_genes, ]

# Desired column order: group by drug โ†’ conc โ†’ time
desired_order <- c(
  "CX_0.1_3", "CX_0.1_24", "CX_0.1_48",
  "CX_0.5_3", "CX_0.5_24", "CX_0.5_48",
  "DOX_0.1_3", "DOX_0.1_24", "DOX_0.1_48",
  "DOX_0.5_3", "DOX_0.5_24", "DOX_0.5_48"
)
logFC_matrix <- logFC_matrix[, desired_order]
signif_matrix <- signif_matrix[, desired_order]

# Column metadata
split_cols <- strsplit(colnames(logFC_matrix), "_")
drug <- sapply(split_cols, function(x) x[1])
conc <- sapply(split_cols, function(x) x[2])
time <- sapply(split_cols, function(x) x[3])

# Top annotation
ha_top <- HeatmapAnnotation(
  Drug = drug,
  Conc = conc,
  Time = time,
  col = list(
    Drug = c("CX" = "blue", "DOX" = "red"),
    Conc = c("0.1" = "lightgreen", "0.5" = "darkgreen"),
    Time = c("3" = "yellow", "24" = "orange", "48" = "purple")
  ),
  annotation_height = unit(c(2, 2, 2), "cm")
)

# Mechanistic category row annotation
category_mapping <- combined_data %>%
  distinct(Gene, Mechanistic_Implication) %>%
  filter(Gene %in% ordered_genes) %>%
  arrange(match(Gene, ordered_genes))

category_colors <- structure(
  c("darkorange", "steelblue", "darkgreen", "firebrick", "gold", "mediumpurple", "cyan"),
  names = unique(category_mapping$Mechanistic_Implication)
)

ha_left <- rowAnnotation(
  Category = category_mapping$Mechanistic_Implication,
  col = list(Category = category_colors),
  show_annotation_name = TRUE,
  annotation_name_side = "top"
)

# Draw heatmap
Heatmap(logFC_matrix,
        name = "logFC",
        top_annotation = ha_top,
        left_annotation = ha_left,
        show_row_names = TRUE,
        row_names_gp = gpar(fontsize = 10),
        show_column_names = FALSE,
        cluster_rows = FALSE,
        cluster_columns = FALSE,
        column_title = "Genes in DOX cardiotoxicity-associated loci\nresponse to CX5461 and DOX",
        column_title_gp = gpar(fontsize = 16, fontface = "bold"),
        cell_fun = function(j, i, x, y, width, height, fill) {
          grid.text(signif_matrix[i, j], x, y, gp = gpar(fontsize = 10))
        }
)

Version Author Date
7e4af99 sayanpaul01 2025-05-04
2f74123 sayanpaul01 2025-04-24

sessionInfo()
R version 4.3.0 (2023-04-21 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 11 x64 (build 26100)

Matrix products: default


locale:
[1] LC_COLLATE=English_United States.utf8 
[2] LC_CTYPE=English_United States.utf8   
[3] LC_MONETARY=English_United States.utf8
[4] LC_NUMERIC=C                          
[5] LC_TIME=English_United States.utf8    

time zone: America/Chicago
tzcode source: internal

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

other attached packages:
 [1] reshape2_1.4.4                          
 [2] circlize_0.4.16                         
 [3] ComplexHeatmap_2.18.0                   
 [4] TxDb.Hsapiens.UCSC.hg38.knownGene_3.18.0
 [5] RColorBrewer_1.1-3                      
 [6] clusterProfiler_4.10.1                  
 [7] pheatmap_1.0.12                         
 [8] qvalue_2.34.0                           
 [9] BiocParallel_1.36.0                     
[10] Homo.sapiens_1.3.1                      
[11] TxDb.Hsapiens.UCSC.hg19.knownGene_3.2.2 
[12] org.Hs.eg.db_3.18.0                     
[13] GO.db_3.18.0                            
[14] OrganismDbi_1.44.0                      
[15] GenomicFeatures_1.54.4                  
[16] GenomicRanges_1.54.1                    
[17] GenomeInfoDb_1.38.8                     
[18] AnnotationDbi_1.64.1                    
[19] IRanges_2.36.0                          
[20] S4Vectors_0.40.2                        
[21] Biobase_2.62.0                          
[22] BiocGenerics_0.48.1                     
[23] edgeR_4.0.16                            
[24] limma_3.58.1                            
[25] cluster_2.1.8.1                         
[26] ggfortify_0.4.17                        
[27] lubridate_1.9.4                         
[28] forcats_1.0.0                           
[29] stringr_1.5.1                           
[30] dplyr_1.1.4                             
[31] purrr_1.0.4                             
[32] readr_2.1.5                             
[33] tidyr_1.3.1                             
[34] tibble_3.2.1                            
[35] ggplot2_3.5.2                           
[36] tidyverse_2.0.0                         
[37] workflowr_1.7.1                         

loaded via a namespace (and not attached):
  [1] splines_4.3.0               later_1.3.2                
  [3] BiocIO_1.12.0               ggplotify_0.1.2            
  [5] bitops_1.0-9                filelock_1.0.3             
  [7] polyclip_1.10-7             graph_1.80.0               
  [9] XML_3.99-0.18               lifecycle_1.0.4            
 [11] doParallel_1.0.17           rprojroot_2.0.4            
 [13] processx_3.8.6              lattice_0.22-7             
 [15] MASS_7.3-60                 magrittr_2.0.3             
 [17] sass_0.4.10                 rmarkdown_2.29             
 [19] jquerylib_0.1.4             yaml_2.3.10                
 [21] httpuv_1.6.15               cowplot_1.1.3              
 [23] DBI_1.2.3                   abind_1.4-8                
 [25] zlibbioc_1.48.2             ggraph_2.2.1               
 [27] RCurl_1.98-1.17             yulab.utils_0.2.0          
 [29] tweenr_2.0.3                rappdirs_0.3.3             
 [31] git2r_0.36.2                GenomeInfoDbData_1.2.11    
 [33] enrichplot_1.22.0           ggrepel_0.9.6              
 [35] tidytree_0.4.6              codetools_0.2-20           
 [37] DelayedArray_0.28.0         DOSE_3.28.2                
 [39] xml2_1.3.8                  ggforce_0.4.2              
 [41] shape_1.4.6.1               tidyselect_1.2.1           
 [43] aplot_0.2.5                 farver_2.1.2               
 [45] viridis_0.6.5               matrixStats_1.5.0          
 [47] BiocFileCache_2.10.2        GenomicAlignments_1.38.2   
 [49] jsonlite_2.0.0              GetoptLong_1.0.5           
 [51] tidygraph_1.3.1             iterators_1.0.14           
 [53] foreach_1.5.2               tools_4.3.0                
 [55] progress_1.2.3              treeio_1.26.0              
 [57] Rcpp_1.0.12                 glue_1.7.0                 
 [59] gridExtra_2.3               SparseArray_1.2.4          
 [61] xfun_0.52                   MatrixGenerics_1.14.0      
 [63] withr_3.0.2                 BiocManager_1.30.25        
 [65] fastmap_1.2.0               callr_3.7.6                
 [67] digest_0.6.34               gridGraphics_0.5-1         
 [69] timechange_0.3.0            R6_2.6.1                   
 [71] colorspace_2.1-0            Cairo_1.6-2                
 [73] biomaRt_2.58.2              RSQLite_2.3.9              
 [75] generics_0.1.3              data.table_1.17.0          
 [77] rtracklayer_1.62.0          prettyunits_1.2.0          
 [79] graphlayouts_1.2.2          httr_1.4.7                 
 [81] S4Arrays_1.2.1              scatterpie_0.2.4           
 [83] whisker_0.4.1               pkgconfig_2.0.3            
 [85] gtable_0.3.6                blob_1.2.4                 
 [87] XVector_0.42.0              shadowtext_0.1.4           
 [89] htmltools_0.5.8.1           fgsea_1.28.0               
 [91] RBGL_1.78.0                 clue_0.3-66                
 [93] scales_1.3.0                png_0.1-8                  
 [95] ggfun_0.1.8                 knitr_1.50                 
 [97] rstudioapi_0.17.1           tzdb_0.5.0                 
 [99] rjson_0.2.23                nlme_3.1-168               
[101] curl_6.2.2                  GlobalOptions_0.1.2        
[103] cachem_1.1.0                parallel_4.3.0             
[105] HDO.db_0.99.1               restfulr_0.0.15            
[107] pillar_1.10.2               vctrs_0.6.5                
[109] promises_1.3.2              dbplyr_2.5.0               
[111] evaluate_1.0.3              magick_2.8.6               
[113] cli_3.6.1                   locfit_1.5-9.12            
[115] compiler_4.3.0              Rsamtools_2.18.0           
[117] rlang_1.1.3                 crayon_1.5.3               
[119] ps_1.8.1                    getPass_0.2-4              
[121] plyr_1.8.9                  fs_1.6.3                   
[123] stringi_1.8.3               viridisLite_0.4.2          
[125] munsell_0.5.1               Biostrings_2.70.3          
[127] lazyeval_0.2.2              GOSemSim_2.28.1            
[129] Matrix_1.6-1.1              patchwork_1.3.0            
[131] hms_1.1.3                   bit64_4.6.0-1              
[133] KEGGREST_1.42.0             statmod_1.5.0              
[135] SummarizedExperiment_1.32.0 igraph_2.1.4               
[137] memoise_2.0.1               bslib_0.9.0                
[139] ggtree_3.10.1               fastmatch_1.1-6            
[141] bit_4.6.0                   gson_0.1.0                 
[143] ape_5.8-1