Process for the preparation of permanent animal and human cell lines and their use

Abstract From the Canadian patent

Process for obtaining permanently culturable animal and human cell lines and the use thereof. The present invention provides a process for obtaining permanently culturable animal and human cell lines by fusion of normal animal and human cells with biological components which bring about a culturability in vitro, wherein normal animal or human cells are fused with cell fragments of transformed cells which alone are not capable of multiplication and then cultured in a culture medium without selection substances. The cell lines thus obtained can be used for obtaining cell products and for testing active substances.