TY - JOUR T1 - 5-Azacytidine Enhances Porcine Circovirus Type 2 Replication in PK15 Cells via MAPK Pathway Activation and Immune Dysregulation A1 - Rong Hua A1 - Zhong Jie A1 - An Ning JF - International Journal of Veterinary Research and Allied Sciences JO - Int J Vet Res Allied Sci SN - 3062-357X Y1 - 2024 VL - 4 IS - 1 DO - 10.51847/Qrli1HREoX SP - 92 EP - 104 N2 - Porcine circovirus type 2 (PCV2) is the major etiological agent responsible for post-weaning multisystemic wasting syndrome (PMWS), a disease that disrupts immune functions and continues to threaten the global swine population. 5-Azacytidine (5-Aza), a recognized inhibitor of DNA methyltransferase activity, can modulate numerous biological and pathological events, including those associated with viral infections, through the suppression of gene transcription. Yet, its influence on PCV2 replication remains unclear. In the present work, PK15 porcine kidney cells were employed to assess how 5-Aza affects PCV2 infection. The results indicated that 5-Aza treatment substantially increased PCV2 infectivity in these cells. Transcriptomic profiling showed that PCV2 infection activates multiple immune-related signaling routes, while 5-Aza may intensify infection via MAPK pathway activation, promoting inflammatory and apoptotic gene expression. These findings may provide new perspectives for the therapeutic management of PCV2. UR - https://esvpub.com/article/5-azacytidine-enhances-porcine-circovirus-type-2-replication-in-pk15-cells-via-mapk-pathway-activati-pal0haptcv44014 ER -