Abstract: The present invention aims to provide a growth inhibitor for cancer stem cells resistant to existing anticancer drug therapies, which growth inhibitor acts on the cells through growth inhibition and apoptosis. The growth inhibitor for cancer stem cells contains a retinoid agonist, preferably tamibarotene, alone or in combination with a rexinoid agonist, preferably bexarotene, as an effective component(s). The growth inhibitor for cancer stem cells enhances the effects of various anticancer drugs when the growth inhibitor is used in combination with the anticancer drugs.

Abstract: The present invention aims to provide a growth inhibitor for cancer stem cells resistant to existing anticancer drug therapies, which growth inhibitor acts on the cells through growth inhibition and apoptosis. The growth inhibitor for cancer stem cells contains a retinoid agonist, preferably tamibarotene, alone or in combination with a rexinoid agonist, preferably bexarotene, as an effective component(s). The growth inhibitor for cancer stem cells enhances the effects of various anticancer drugs when the growth inhibitor is used in combination with the anticancer drugs.

Abstract: To provide a kit for cancer treatment and a pharmaceutical composition for cancer treatment that can inhibit the growth of tumors and cancers in mammals more than ever. The kit for cancer treatment includes a combination of two different drugs in a kit formulation. The first drug contains a synthetic retinoid or a pharmaceutically acceptable organic or inorganic acid addition salt thereof, and the second drug contains a chemotherapeutic agent for cancer treatment. A synthetic retinoid that can be suitably used is a benzoic acid derivative represented by the following formula (I): or a pharmaceutically acceptable organic or inorganic acid addition salt thereof.

Abstract: The present invention provides a practical preparation form of Tamibarotene and dosage form thereof, which exhibit high absorptivity by the body with minimized toxicity, and which are safe and stable without any risk of contamination. It is provided a Tamibarotene capsule preparation which encapsulates a composition comprising an oil component as its base and Tamibarotene as an active ingredient dissolved in the base. It is preferred that the oil component be propylene glycol fatty acid esters or polyethylene glycols. It is also preferred that the Tamibarotene capsule preparation comprise 0.1-50 mg/mL of the Tamibarotene based on the oil component.

Abstract: To provide a kit for cancer treatment and a pharmaceutical composition for cancer treatment that can inhibit the growth of tumors and cancers in mammals more than ever. The kit for cancer treatment includes a combination of two different drugs in a kit formulation. The first drug contains a synthetic retinoid or a pharmaceutically acceptable organic or inorganic acid addition salt thereof, and the second drug contains a chemotherapeutic agent for cancer treatment. A synthetic retinoid that can be suitably used is a benzoic acid derivative represented by the following formula (I): or a pharmaceutically acceptable organic or inorganic acid addition salt thereof.

Abstract: There is provided a novel pyrrole-imidazole polyamide compound for alkylating the specific base sequence of DNA, the polyamide compound being capable of being synthesized through fewer reaction steps than known hybrid molecules and having a combination of a high reactivity in DNA alkylation and the ability to recognize a sequence. Furthermore, there is provided an alkylating agent and a molecule serving as a drug, the alkylating agent and the molecule containing the polyamide compound.