Disclosed herein, the invention pertains to methods and compositions that find use in radiosensitization of tumors and tumor samples based on the ability of a tumor sample to cleave a MTS molecule of the present invention. The MTS molecules of the present invention have a formula as disclosed herein and wherein A is a peptide with a sequence comprising 5 to 9 consecutive acidic amino acids, wherein the amino acids are selected from: aspartates and glutamates; B is a peptide with a sequence comprising 5 to 20 consecutive basic amino acids; X and Y are linkers; P is an optional pre-targeting moiety; M is an optional macromolecular carrier; and T is a radiosensitization agent for delivery to a target, including for example a therapeutic compound.
本发明涉及根据肿瘤样品裂解本发明
MTS分子的能力对肿瘤和肿瘤样品进行放射增敏的方法和组合物。本发明的
MTS分子具有如本文所公开的式,其中A是具有包含5至9个连续酸性
氨基酸序列的
多肽,其中
氨基酸选自
天冬氨酸和谷
氨酸;B是具有包含5至20个连续碱性
氨基酸序列的
多肽;X和Y是连接体;P是任选的前靶向分子;M是任选的大分子载体;T是用于递送至靶点(例如包括治疗化合物)的放射增敏剂。