Non-mammalian transgenic animal model for cellular proliferative diseases

Abstract

Non-mammalian, transgenic animals, e.g. flies, that exhibit neoplastic phenotypes, i.e. spontaneously produce metastatic tumors, are provided. Also provided are methods of using the subject transgenic non-mammalian animals to identify compounds having activity with respect to cellular proliferative, and particularly neoplastic, diseases. Finally, kits for screening compounds for anti-neoplastic activity are provided.

Description

[0001] This patent application is a continuation of U.S. patent application Ser. No. 09 / 472,661, filed Dec. 27, 1999, which claims priority to the filing date of the U.S. Provisional Patent Application Ser. No. 60 / 147,433 filed Aug. 4, 1999, the disclosure of which is herein incorporated by reference.[0002] 1. Field of the Invention[0003] The field of this invention is animal models of cellular proliferative diseases.[0004] 2. Background of the Invention[0005] Cancer remains one of the leading causes of death in the United States. Clinically, a broad variety of medical approaches, including surgery, radiation therapy and chemotherapeutic drug therapy are currently being used in the treatment of human cancer (see the textbook CANCER: Principles & Practice of Oncology, 2d Edition, De Vita et al., eds., J. B. Lippincott Company, Philadelphia, Pa., 1985). With respect to chemotherapeutic drug therapy approaches, a broad variety of different types of active agents have been identified th...

AI Technical Summary

Benefits of technology

[0033] As mentioned above, the subject transgenic flies find particular utility in screening assays designed to identify therapeutic compounds for cellular proliferative conditions, particularly neoplastic conditions. Through use of the subject transgenic flies (or cells derived therefrom depending on the particular screening assay), one can identify compounds that have activity with respect to a neoplastic disease. Compounds have activity with respect to a neoplastic disease if they modulate or have an effect on at least one parameter or symptom of the disease, such as loss abnormal cell division or complications associated therewith, where the modulatory activity may be to reduce or enhance the magnitude of the symptom, depending on the nature of the disease and the symptom. Thus, the screening methods of subject invention can be used to identify compounds that modulate the progression of neoplastic diseases, e.g. by binding to, modulating, enhancing or repressing the activity of a protein or peptide involved in the progression of the neoplastic disease, and / or compounds that ameliorate, alleviate or even remove the phenotypic symptoms of the disease, where such activity may or may not be the result of activity with respect to the underlying mechanism of the disease. Screening to determine drugs that lack effect on the neoplastic condition is also of interest. Assays of the invention make it possible to identify compounds which ultimately: (1) have a positive affect with respect to a neoplastic disease condition and as such are therapeutics, e.g. agents which arrest or reverse the neoplastic condition or ameliorate or alleviate the symptoms of such a condition; or (2) have an adverse affect with respect to the neoplastic disease and as such should be avoided as therapeutic agents.

Problems solved by technology

However, despite the large number of compounds that have been identified to date, no ideal drug therapeutic has yet been discovered.

However, mice are expensive, have a slow reproduction time, and generate small numbers of offspring.

As such, they are less than ideal for many high throughput screening assays.

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