Research is exploring ways to overcome resistance to certain therapies in acute myeloid leukemia, with a focus on the role of the vascular niche and microenvironment. Studies are investigating various factors, including miR-126 inhibition, tumor-stroma interactions, and endothelial heterogeneity, to better understand and potentially target therapy resistance. The bone marrow niche and its interactions with leukemia cells are also being examined for their relevance to treatment resistance.