Investigate the expression of key genes potentially involed in DBA pathogenesis

Read in processed data and a subset of gene sets.

Perform differential expression analysis for SCAN normalized gene sets

Perform differential expression analysis for RMA normalized gene sets

Check for differential expression of key genes.

combined.RMA.GSE41817.table["ALAS2",]
##            logFC  AveExpr          t   P.Value adj.P.Val         B
## ALAS2 -0.5505513 9.661347 -0.4643075 0.6528458 0.9838692 -5.490981
combined.RMA.GSE41817.table["GATA1",]
##            logFC  AveExpr         t   P.Value adj.P.Val         B
## GATA1 -0.1546032 7.470615 -0.724291 0.4862765 0.9769421 -5.349734
combined.RMA.GSE41817.table["HBB",]
##          logFC  AveExpr         t   P.Value adj.P.Val         B
## HBB 0.03214361 14.54898 0.1516793 0.8826006 0.9924939 -5.581608
combined.RMA.GSE89540.table.DBAvControl["ALAS2",]
##           logFC  AveExpr        t   P.Value adj.P.Val         B
## ALAS2 0.8265718 10.14716 1.691234 0.1047621 0.4713699 -4.347265
combined.RMA.GSE89540.table.DBAvControl["GATA1",]
##           logFC  AveExpr        t   P.Value adj.P.Val         B
## GATA1 0.2458813 9.988942 1.417341 0.1702439  0.530045 -4.679587
combined.RMA.GSE89540.table.DBAvControl["HBB",]
##         logFC  AveExpr        t   P.Value adj.P.Val         B
## HBB 0.2207331 7.126908 1.310875 0.2032776 0.5632296 -4.796093
combined.RMA.GSE89540.table.DBAvControl["ALAS2",]
##           logFC  AveExpr        t   P.Value adj.P.Val         B
## ALAS2 0.8265718 10.14716 1.691234 0.1047621 0.4713699 -4.347265
combined.RMA.GSE89540.table.DBAvControl["GATA1",]
##           logFC  AveExpr        t   P.Value adj.P.Val         B
## GATA1 0.2458813 9.988942 1.417341 0.1702439  0.530045 -4.679587
combined.RMA.GSE89540.table.DBAvControl["HBB",]
##         logFC  AveExpr        t   P.Value adj.P.Val         B
## HBB 0.2207331 7.126908 1.310875 0.2032776 0.5632296 -4.796093
combined.RMA.GSE89540.table.DBA_GATA1vControl["ALAS2",]
##            logFC  AveExpr          t   P.Value adj.P.Val         B
## ALAS2 -0.4852665 10.14716 -0.6814724 0.5026091 0.9997145 -4.910827
combined.RMA.GSE89540.table.DBA_GATA1vControl["GATA1",]
##           logFC  AveExpr         t   P.Value adj.P.Val        B
## GATA1 0.2441328 9.988942 0.9658723 0.3444962 0.9997145 -4.76994
combined.RMA.GSE89540.table.DBA_GATA1vControl["HBB",]
##          logFC  AveExpr         t   P.Value adj.P.Val         B
## HBB -0.3027845 7.126908 -1.234162 0.2300276 0.9997145 -4.598055
combined.RMA.GSE89540.table.DBA_GATA1vDBA["ALAS2",]
##           logFC  AveExpr         t    P.Value adj.P.Val         B
## ALAS2 -1.311838 10.14716 -1.914837 0.06846548  0.841491 -3.983151
combined.RMA.GSE89540.table.DBA_GATA1vDBA["GATA1",]
##              logFC  AveExpr            t   P.Value adj.P.Val         B
## GATA1 -0.001748427 9.988942 -0.007189932 0.9943274 0.9987077 -5.269669
combined.RMA.GSE89540.table.DBA_GATA1vDBA["HBB",]
##          logFC  AveExpr         t   P.Value adj.P.Val         B
## HBB -0.5235176 7.126908 -2.217959 0.0370743  0.841491 -3.596159
combined.SCAN.GSE41817.table["ALAS2",]
##             logFC  AveExpr          t   P.Value adj.P.Val         B
## ALAS2 -0.09132189 1.419722 -0.1640895 0.8732244 0.9819691 -5.718714
combined.SCAN.GSE41817.table["GATA1",]
##             logFC   AveExpr          t   P.Value adj.P.Val         B
## GATA1 -0.02416415 0.2051725 -0.3425272 0.7396831 0.9600617 -5.674126
combined.SCAN.GSE41817.table["HBB",]
##           logFC  AveExpr          t   P.Value adj.P.Val         B
## HBB -0.08926071 3.521007 -0.6092507 0.5571654 0.9300153 -5.551434
combined.SCAN.GSE89540.table.DBAvControl["ALAS2",]
##           logFC AveExpr        t    P.Value adj.P.Val         B
## ALAS2 0.5103011 2.28445 1.722819 0.09971455 0.4576909 -4.341236
combined.SCAN.GSE89540.table.DBAvControl["GATA1",]
##           logFC  AveExpr        t   P.Value adj.P.Val         B
## GATA1 0.1523924 2.112046 1.343062 0.1936826 0.5514939 -4.805164
combined.SCAN.GSE89540.table.DBAvControl["HBB",]
##         logFC  AveExpr        t    P.Value adj.P.Val         B
## HBB 0.2195968 1.375869 1.906629 0.07043691 0.4360524 -4.087057
combined.SCAN.GSE89540.table.DBAvControl["ALAS2",]
##           logFC AveExpr        t    P.Value adj.P.Val         B
## ALAS2 0.5103011 2.28445 1.722819 0.09971455 0.4576909 -4.341236
combined.SCAN.GSE89540.table.DBAvControl["GATA1",]
##           logFC  AveExpr        t   P.Value adj.P.Val         B
## GATA1 0.1523924 2.112046 1.343062 0.1936826 0.5514939 -4.805164
combined.SCAN.GSE89540.table.DBAvControl["HBB",]
##         logFC  AveExpr        t    P.Value adj.P.Val         B
## HBB 0.2195968 1.375869 1.906629 0.07043691 0.4360524 -4.087057
combined.SCAN.GSE89540.table.DBA_GATA1vControl["ALAS2",]
##            logFC AveExpr          t  P.Value adj.P.Val         B
## ALAS2 -0.2618262 2.28445 -0.6066959 0.550599 0.9998879 -5.108358
combined.SCAN.GSE89540.table.DBA_GATA1vControl["GATA1",]
##              logFC  AveExpr           t   P.Value adj.P.Val         B
## GATA1 -0.008369694 2.112046 -0.05062757 0.9601039 0.9998879 -5.246356
combined.SCAN.GSE89540.table.DBA_GATA1vControl["HBB",]
##           logFC  AveExpr          t   P.Value adj.P.Val         B
## HBB -0.08145771 1.375869 -0.4854194 0.6324379 0.9998879 -5.158011
combined.SCAN.GSE89540.table.DBA_GATA1vDBA["ALAS2",]
##            logFC AveExpr         t    P.Value adj.P.Val         B
## ALAS2 -0.7721273 2.28445 -1.859647 0.07709698  0.982447 -4.054036
combined.SCAN.GSE89540.table.DBA_GATA1vDBA["GATA1",]
##            logFC  AveExpr         t   P.Value adj.P.Val         B
## GATA1 -0.1607621 2.112046 -1.010752 0.3237156  0.982447 -4.889537
combined.SCAN.GSE89540.table.DBA_GATA1vDBA["HBB",]
##          logFC  AveExpr        t   P.Value adj.P.Val         B
## HBB -0.3010545 1.375869 -1.86472 0.0763522  0.982447 -4.047981

Create synthetic normal and normalize O’Brien et al. expression set

Check for differential expression of key genes in synthetic normal and after removing synthetic normal from O’Brien et al. expression set

#Synthetic normal
combined.RMA.GSE89540.sn.table.DBAvControl["ALAS2",]
##          logFC  AveExpr        t     P.Value  adj.P.Val         B
## ALAS2 1.417284 10.24341 2.902705 0.008663004 0.05770758 -2.476174
combined.RMA.GSE89540.sn.table.DBAvControl["GATA1",]
##            logFC  AveExpr         t    P.Value adj.P.Val         B
## GATA1 -0.1123234 9.166166 -2.393998 0.02634278 0.0836422 -3.384987
combined.RMA.GSE89540.sn.table.DBAvControl["HBB",]
##          logFC  AveExpr        t   P.Value adj.P.Val         B
## HBB 0.03936273 14.40339 1.175115 0.2534412 0.3840489 -5.100835
combined.RMA.GSE89540.sn.table.DBAvControl["ALAS2",]
##          logFC  AveExpr        t     P.Value  adj.P.Val         B
## ALAS2 1.417284 10.24341 2.902705 0.008663004 0.05770758 -2.476174
combined.RMA.GSE89540.sn.table.DBAvControl["GATA1",]
##            logFC  AveExpr         t    P.Value adj.P.Val         B
## GATA1 -0.1123234 9.166166 -2.393998 0.02634278 0.0836422 -3.384987
combined.RMA.GSE89540.sn.table.DBAvControl["HBB",]
##          logFC  AveExpr        t   P.Value adj.P.Val         B
## HBB 0.03936273 14.40339 1.175115 0.2534412 0.3840489 -5.100835
combined.RMA.GSE89540.sn.table.DBA_GATA1vControl["ALAS2",]
##           logFC  AveExpr        t   P.Value adj.P.Val         B
## ALAS2 0.1806823 10.24341 0.253984 0.8020424 0.8901072 -5.378335
combined.RMA.GSE89540.sn.table.DBA_GATA1vControl["GATA1",]
##            logFC  AveExpr         t  P.Value adj.P.Val         B
## GATA1 -0.1500157 9.166166 -2.194497 0.039895 0.5575744 -3.625563
combined.RMA.GSE89540.sn.table.DBA_GATA1vControl["HBB",]
##            logFC  AveExpr          t   P.Value adj.P.Val         B
## HBB -0.007314466 14.40339 -0.1498727 0.8823324 0.9374309 -5.395979
combined.RMA.GSE89540.sn.table.DBA_GATA1vDBA["ALAS2",]
##           logFC  AveExpr         t    P.Value adj.P.Val         B
## ALAS2 -1.236602 10.24341 -1.806776 0.08552529 0.3635934 -4.161713
combined.RMA.GSE89540.sn.table.DBA_GATA1vDBA["GATA1",]
##            logFC  AveExpr          t   P.Value adj.P.Val         B
## GATA1 -0.0376923 9.166166 -0.5731056 0.5728177 0.7711283 -5.297733
combined.RMA.GSE89540.sn.table.DBA_GATA1vDBA["HBB",]
##          logFC  AveExpr          t   P.Value adj.P.Val         B
## HBB -0.0466772 14.40339 -0.9940962 0.3317862  0.591083 -5.026388
#Normalized
combined.RMA.GSE89540.sn.norm.table.DBAvControl["ALAS2",]
##             logFC   AveExpr           t   P.Value adj.P.Val         B
## ALAS2 -0.02958282 -0.661185 -0.03202959 0.9747308 0.9900751 -5.670345
combined.RMA.GSE89540.sn.norm.table.DBAvControl["GATA1",]
##           logFC    AveExpr        t    P.Value adj.P.Val         B
## GATA1 0.5544215 -0.6197297 1.877433 0.07348117 0.4295649 -4.172982
combined.RMA.GSE89540.sn.norm.table.DBAvControl["HBB",]
##         logFC   AveExpr        t   P.Value adj.P.Val         B
## HBB 0.2711627 -3.961081 1.122357 0.2735427 0.6373178 -5.107011
combined.RMA.GSE89540.sn.norm.table.DBAvControl["ALAS2",]
##             logFC   AveExpr           t   P.Value adj.P.Val         B
## ALAS2 -0.02958282 -0.661185 -0.03202959 0.9747308 0.9900751 -5.670345
combined.RMA.GSE89540.sn.norm.table.DBAvControl["GATA1",]
##           logFC    AveExpr        t    P.Value adj.P.Val         B
## GATA1 0.5544215 -0.6197297 1.877433 0.07348117 0.4295649 -4.172982
combined.RMA.GSE89540.sn.norm.table.DBAvControl["HBB",]
##         logFC   AveExpr        t   P.Value adj.P.Val         B
## HBB 0.2711627 -3.961081 1.122357 0.2735427 0.6373178 -5.107011
combined.RMA.GSE89540.sn.norm.table.DBA_GATA1vControl["ALAS2",]
##            logFC   AveExpr          t   P.Value adj.P.Val         B
## ALAS2 -0.9953784 -0.661185 -0.7396815 0.4671397 0.9997934 -4.663227
combined.RMA.GSE89540.sn.norm.table.DBA_GATA1vControl["GATA1",]
##           logFC    AveExpr       t  P.Value adj.P.Val         B
## GATA1 0.5889701 -0.6197297 1.36887 0.184549 0.9997934 -4.514909
combined.RMA.GSE89540.sn.norm.table.DBA_GATA1vControl["HBB",]
##          logFC   AveExpr         t   P.Value adj.P.Val         B
## HBB -0.4186402 -3.961081 -1.189288 0.2467237 0.9997934 -4.564614
combined.RMA.GSE89540.sn.norm.table.DBA_GATA1vDBA["ALAS2",]
##            logFC   AveExpr          t   P.Value adj.P.Val         B
## ALAS2 -0.9657956 -0.661185 -0.7459769 0.4634028 0.9335219 -4.993166
combined.RMA.GSE89540.sn.norm.table.DBA_GATA1vDBA["GATA1",]
##           logFC    AveExpr          t  P.Value adj.P.Val         B
## GATA1 0.0345486 -0.6197297 0.08346093 0.934223 0.9924475 -5.190056
combined.RMA.GSE89540.sn.norm.table.DBA_GATA1vDBA["HBB",]
##         logFC   AveExpr         t   P.Value adj.P.Val         B
## HBB -0.689803 -3.961081 -2.036829 0.0535984 0.8306519 -3.842394