As there were only two samples per group in the exosomal protein spectrum assay, to avoid the problem of accuracy of the results, we searched the GEO dataset for RNA high-throughput sequencing results of endometriosis (GSE25628 for tissue and GSE58178 for primary stromal cells), which showed that the mRNA expression levels of MSN in ectopic endometrial tissues (primary stromal cells) were higher than those in the normal group (GSE25628, p < 0.001; GSE58178, p < 0.05) (Figure 3A). This evidence concerns the gene MSN and endometriosis.