PURPOSE: A salivary gland-transplantation animal model is provided to ensure easy accessability and to transplant to regional lymph nodes or distant site. CONSTITUTION: A method for analyzing tumor metastasis mode using a salivary gland-transplantation animal model comprises: a step of transplanting tumor cells to salivary gland of a normal animal to induce tumor; and a step of measuring tumor cell metastasis in a tissue or organic besides salivary gland. A method for screening an anticancer drug using the salivary gland-transplantation tumor animal model comprises: a step of transplanting tumor cells to salivary gland of a normal animal except for human body; a step of administering anticancer drug candidate to the animal; and a step of measuring growth or metastasis of the tumor cells.
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