The invention relates to compositions and methods for reducing excessive vascular development and treat related disorders. In one aspect, the invention provides methods for treating, reducing or inhibiting vascular development in a subject in need thereof. The methods of the invention comprises administering to the subject an effective amount of a HK2 depleting agent that decreases the level of expression and/or activity of HK2. In some embodiments, the level of expression and/or activity of fibroblast growth factor receptor (FGFR), FGF ligand and/or FGF signaling is/are decreased. The invention also includes methods for diagnosing excessive vascular development and for measuring the efficacy of a treatment for an excessive vascular development in a subject in need thereof. The invention further includes a pharmaceutical composition for treating or reducing angiogenesis or lymphangiogenesis, comprising a HK2 depleting agent and a pharmaceutical acceptable carrier.
