Bromodomain Adjacent to Zinc finger domain 1B (BAZ1B), Bromodomain PHD finger Transcription Factor (BPTF), Bromodomain containing 4 (BRD4) and CHD4 are key components of various epigenetic complexes implicated in cancer growth, progression and/or metastasis formation [32, 37, 45–50]. The gene discussed is BAZ1B; the disease is cancer.