RNASE1 and Kaposi's sarcoma: For RPL41P3, GO analysis revealed involvement in chemokine binding, CoA-transferase activity, and G-protein-coupled serotonin receptor activity, all of which are associated with SIPF development (Figure S1); lncRNA-RP11-609D21.3 was principally associated with carbohydrate transporter, endoribonuclease, and ribonuclease A activities, and with spliceosome activity, ferroptosis, and Kaposi's sarcoma-associated herpesvirus infection (Figure S2).