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    • 8. 发明授权
    • Method for increasing sensitivity to chemically induced terminal
differentiation
    • 增加化学诱导终末分化敏感性的方法
    • US5330744A
    • 1994-07-19
    • US270643
    • 1988-11-14
    • Sandro PontremoliRonald BreslowPaul A. MarksRichard A. Rifkind
    • Sandro PontremoliRonald BreslowPaul A. MarksRichard A. Rifkind
    • A61K31/16A61K31/475A61K49/00A61K31/205
    • A61K31/475A61K31/16
    • The present invention provides a method of selectively inducing terminal differentiation of neoplastic cells and thereby inhibiting proliferation of such cells which comprises treating the cells so as to render them resistant to an antitumor agent and contacting the resulting resistant cells under suitable conditions with an amount of a compound effective to selectively induce terminal differentiation of such cells. The compound has a structure:[R-A ]-B-[A.sub.1 -B.sub.1 -].sub.a [A.sub.2 -B.sub.2 -].sub.b [A.sub.3 -R.sub.1 ].The invention also concerns a method of treating a patient having a tumor characterized by proliferation of neoplastic which comprises administering to the patient an amount of an antitumor agent to render the cells resistant to the antitumor agent and subsequently administering to the patient an amount of the compound effective to selectively induce terminal differentiation of such neoplastic cells and thereby inhibit their proliferation.
    • 本发明提供了选择性诱导肿瘤细胞的终末分化并由此抑制这些细胞增殖的方法,包括治疗细胞以使其对抗肿瘤剂具有抗性,并在合适的条件下使得到的抗性细胞与一定量的 有效选择性诱导这些细胞的终末分化的化合物。 化合物具有以下结构:[R-A] -B- [A1-B1-] a [A2-B2-] b [A3-R1]。 本发明还涉及一种治疗具有以肿瘤增殖为特征的肿瘤的患者的方法,其包括向患者施用一定量的抗肿瘤剂以使细胞对抗肿瘤剂具有抗性,并且随后向患者施用一定量的化合物 有效地选择性诱导这些肿瘤细胞的末端分化,从而抑制其增殖。