Conjugates of trichothecenes and agents that bind to a defined population of cells are disclosed. Preferred are conjugates of trichothecene molecules with polyolonal or monoclonal antibodies or fragments thereof that recognize antigens that are present only on tumor cells or are augmented in their expression on tumor cells as compared to normal tissues. Trichothecene molecules are coupled to the agent through non-covalent and covalent linkages, such as peptide bonds, disulfide bonds, thioester bonds, or thioether bonds. A method for inhibiting the growth and metabolism of antigen- positive cells is also disclosed.
单端孢霉烯与能与特定细胞群结合的制剂的共轭物已被公开。较好的是单端孢霉烯分子与多克隆或单克隆
抗体或其片段的共轭物,这些
抗体或片段可识别仅存在于肿瘤细胞上的抗原,或与正常组织相比在肿瘤细胞上表达增强的抗原。单端孢霉烯分子通过肽键、二
硫键、
硫酯键或
硫醚键等非共价或共价键与制剂结合。还公开了一种抑制抗原阳性细胞生长和新陈代谢的方法。