Abstract: Provided are a compound for enhancing anticancer effect of targeted anticancer drugs and chemotherapeutic agents currently in use, more particularly, to an analog compound of the oligopeptide AQTGTGKT and a composition comprising the same, wherein the analog compound exhibits an excellent anticancer effect without any side effects when mixed with an anticancer drug for combined therapy, as compared with a control group and each of single treatment groups, thereby a significant synergistic effect in inhibiting cancer growth is provided, with minimizing side effects including damage to functions and activities that appear in normal tissues, bone marrow dysfunction, gastrointestinal disturbance, alopecia, anticancer drug resistance, and the like. In addition, the oligopeptide has a smaller molecular weight than that of an antibody, and thus causing less concern on immune reaction due to its smaller molecular weight than that of an antibody, and providing advantage of readily permeating into tissue.

Abstract: The present invention relates to a novel oligopeptide, and a pharmaceutical composition for preventing or treating cancer, comprising same as an active ingredient. The oligopeptide of the present invention has an advantage in that the molecular weight thereof is less than that of an antibody, and thus the risk of an immune response is low, and it has better tissue permeability. The oligopeptide can exhibit the effect of inhibiting the proliferation of malignant tumors by selectively acting on cancer cells or cancer tissue.

Abstract: The present invention relates to a method of spreading E-book distribution through sharing of children's reading histories. The method of the present invention includes: (a) accessing by a first user terminal a reading community operating server; (b) purchasing or loaning by the first user terminal of an e-book; (c) displaying the book image data of the E-book on a page of the first user terminal; (d) updating reading history representation information for representing a book history of the first user terminal as a visual image; and (e) opening the reading history representation information of the first user terminal, and accessing by a second user terminal the reading community operating server in order to view the reading history representation information of the first user terminal.