PROBLEM TO BE SOLVED: To provide nucleic acid constructs, pharmaceutical compositions, and methods which can be used to regulate angiogenesis in specific cell regions.SOLUTION: The invention relates to a modified-preproendothelin-1 (PPE 1) promoter which exhibits increased activity and specificity in endothelial cells, and a nucleic acid construct which can be used to either activate cytotoxicity in specific cell subsets, thus, enabling treatment of diseases characterized by aberrant neovascularization or cell growth, or induce the growth of new blood vessels, thus, enabling treatment of ischemic diseases. The invention further relates to modifications of the PPE promoter, which enhance its expression in response to physiological conditions including hypoxia and angiogenesis, as well as novel angiogenic endothelial-specific combined therapies.【課題】特定の細胞領域の血管形成を制御するために使用できる核酸構築物、医薬組成物及び方法の提供。【解決手段】内皮細胞にて増大した活性及び特異性を示す修正プレプロエンドセリン-1(PPE-1)プロモーター及び特定の細胞サブセットの細胞傷害性を活性化し迷入血管の新生もしくは細胞の増殖が特徴である疾患、又は新生血管の増殖を誘発し虚血性疾患、を治療できる核酸構築物。さらに、低酸素症及び血管形成などの生理的症状に応答してPPEプロモーターの発現を高めるPPEプロモーターの修正並びに新規な血管形成内皮特異的併用療法。【選択図】なし