1. Hansen Online figure 1 GAPDH LANA 10 20 30 40 Skin P1Skin P2Skin P3 KS 330 KS P2 KS 248KS 606 KS 602 Threshold Cycle SkinKaposi sarcoma A B SkinKSSkinKSSkinKS

2. KS biopsy Skin C Hansen Online figure 1 Cont.

3. A Hansen Online figure 2 B K12-6-5pK12-11 * *** ** -6 -2 2 6 microRNA Delta Ct ** pSIN Individual lentivirus Cluster C 0 0.2 0.4 0.6 0.8 1 1.2 0ng Cluster K12-1K12-3K12-4-3pK12-5K12-6-3pK12-7K12-8K12-9K12-11 Relative RLU:PRO normalized to 0ng Cluster miRNA Reporter Construct 0ng Cluster 250ng Cluster 500ng Cluster * * ** * * * * * * *

4. D K12-6-3P MAF-3723bp UGCUUUUAACAAAAAAGCAUCU :I:IIIIIIIIII GAGUUGUCGGGCUUUUGGUAGU 5’ 3’ 5’ GUCUAGCUGGGCCUGAUGUCAA I:I:::IIIIIIII CGCUUGCCUUUUCACUAAAGUU MAF-2738bp K12-2 5’ 3’ 5’ CCGUACCUAAUCCACGACGACC III:IIIIIIIIIII AGGUUGUGUUUGGUGCUGCUAA MAF-3425bp K12-6-5p 5’ 3’ 5’ AGCCUGUGUCCGAUUCGUAAUU :I::IIIIIIII GUUGUGUAGAAUUAAGCAUUUU MAF-3850bp K12-11 5’ 3’ 5’ GAGUUGUCGGGCUUUUGGUAGU ::IIIII:IIII UGUACAUUAAAAAAAAUCAUCA MAF-4350bp K12-6-3p 5’ 3’ 5’ Hansen Online figure 2 Cont. K12-6-3P MAF-2638bp CUGAUCAGGAGCAAAGCCAUCC IIIIIIIII:IIIIII GAGUUGUCGGGCUUUUGGUAGU 5’ 3’ 5’ K12-1 MAF-2019bp 5’3’ 5’ UGCAGAACUGGAUUUUCUGUAAC :II::III:IIIIII CGAAUGUGGGUCAAAGGACAUUA AGC GGAUCUCAUGACGCCAAAUCGA ::IIIIIIIIIII AAAGAGUUAGGUCUGUUUAGCU MAF-1566bp K12-4-5p 5’ 3’5’ 3’ MAF-582bp CUCACUCCUUCUCAACCCAUCU IIII:::IIIIIIII GAGUUGUCGGGCUUUUGGUAGU 5’ 3’5’ 3’ K12-6-3p AGC GUAUUGAAAACCAAAGUAUUAA :IIIIII:IIIII AGCCUGUGUCCGAUUCGUAAUU MAF-1748bp 5’ 3’5’ 3’ K12-11 GCG

5. E 0.2.4.6.8 1 1.2 1.4 1.6 pSIN K12-1K12-2K12-4K12-5K12-6K12-7K12-8 K12-10K12-11 K12-9 Relative MAF mRNA levels * * Hansen Online figure 2 Cont.

6. Cluster 0 0.2 0.4 0.6 0.8 1 1.2 Relative MAF mRNA levels pCDNA ABC Hansen Online figure 3 * ** 0 1 2 3 4 5 6 7 Cluster NTC Cluster i11 Cluster i6 Relative MAF mRNA levels 0 1 2 3 4 5 6 7 pCDNA NTC pCDNA i11 pCDNA i6 Relative MAF mRNA levels

7. A GenesiMAFKLECClusterTotal NRCAM TFEC SLC1A1 111111 111111 111111 333333 CYYR11102 PALMD1012 HDAC91102 OSTM11102 IFI271102 APBB21012 HSPB81012 IGF2BP31012 CSF2RB1102 EVI51102 PTPRG1102 LOC401570112 TNIK1012 GULP11102 AKAP121102 Hansen Online figure 4 siControl siMAF 0 1 2 3 MAML2FLT1CXCR4CXCL12MAF Relative mRNA levels ** * * B

8. Hansen Online figure 5 LEC markersBEC markers 0 2 4 6 8 10 LEC PROX1 MAF FLT4 PDPN LYVE ITGB3 FLT1 SLC1A1 NRCAM HDAC9 TFEC CXCR4 GULP1 CXCL12 Relative mRNA levels normalized to LEC A B