Thanks for your comment. yes, that's my point the vst doesn't perform the batch correction; even after using limma::removeBatchEffect still, the counts are somehow the same. And in WGCNA I see modules that are highly correlated with sex, age, and cell type proportions, ... Are there other methods or normalized counts that can be corrected for the batches that I can use as input for WGCNA?
Hi everyone,
I am analyzing Bulk RNA-Seq data, I generated the counts with HTSeqcount and I analyzed them with DESeq2.
Then, I want to get the normalized counts corrected for the variables in my design matrix (Like age, sex, RIN, ...) to use it as an input for WGCNA.
But I realized when I am using variance normalized counts (vst-counts) from DESeq2 they are not corrected for variables in my design matrix.
I was wondering which normalized counts I can use that can be corrected for variables in my design matrix, therefore it can be used as an input for WGCNA?
I also tried to use "limma::removeBatchEffect" but still, it didn't really correct my count for those variables.
I would be grateful if anyone could provide/recommend any solutions, please!
Here is the code that I used in my DESeq2:
dds <- DESeqDataSetFromHTSeqCount(sampleTable=sampleTable,
directory=folder,
design=~Plate+RIN+Sex+Age+condition+PC3+PC2+PC1)
dds <- estimateSizeFactors(dds)
keep <- rowSums( counts(dds) >= 10 ) >= 20 #filters out genes
dds <- dds[keep,]
colData(dds)$condition <- relevel(colData(dds)$condition, ref = "Control")
dds<- DESeq(dds)
vsd <- vst(dds, blind = FALSE)
I want to get the normalized counts adjusted for sex, RIN, plate, age, PC1, PC2, PC3
Thank you in advance!
2 answers
Please correct your title there is typo WGCAN for WGCNA. You can get normalized counts as follows-
normalized_counts=counts(dds, normalized=TRUE)
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