HOXA7 is a sequence-specific transcription factor that functions as a developmental regulator controlling anterior-posterior axis patterning 1. The protein contains conserved homeodomain and acidic domains, undergoes tissue-specific and stage-specific alternative splicing, and exhibits dynamic subcellular localization between nuclear and cytoplasmic compartments 12. Mechanistically, HOXA7 acts as a transcriptional repressor of differentiation-dependent genes. In keratinocytes, HOXA7 inhibits transglutaminase 1, involucrin, and keratin 10 expression through protein kinase C-dependent regulation, thereby suppressing terminal differentiation while maintaining proliferation 3. In hematopoiesis, conditional HOXA7 expression enables expansion of megakaryocyte-erythroid progenitors, which differentiate into mature blood cells and platelets upon inactivation 4. During ovarian folliculogenesis, HOXA7 is upregulated in proliferating granulosa cells through GDF-9 signaling and correlates with cell division 2. Clinically, HOXA7 exhibits altered expression in multiple malignancies. In oral squamous cell carcinoma, elevated HOXA7 correlates with advanced tumor stage, poor differentiation, and metastasis, suggesting diagnostic and therapeutic potential 5. In ovarian and acute myeloid leukemia, microRNA-193a-5p suppresses HOXA7 to inhibit proliferation and induce apoptosis; conversely, MEIS1-HOXA7 co-expression associates with chemotherapy resistance 67. These findings establish HOXA7 as a critical regulator of cell proliferation-differentiation balance with significant disease relevance.