1. General introduction of YY12. Expression of YY1 in various human cancers: Prognostic significance3. Regulation of YY1 transcription and post-transcription4. YY1 and proliferation5. Role of microRNAs targeting YY16. YY1 repression of various genes in various cancers7. YY1 regulation of EMT and metastasis8. YY1 regulation of the cancer stem cell phenotype 9. YY1 regulation of autophagy10. YY1 regulation of resistance to chemotherapy11. YY1 regulation of resistance to immunotherapy12. YY1 phosphorylation13. YY1 epigenetic regulation14. YY1 regulation of the Warburg Effect15. YY1 inhibitors16. YY1 versus YY217. Future perspectives and conclusions