Chemistry: molecular biology and microbiology – Animal cell – per se ; composition thereof; process of... – Two or more cell types – per se – in co-culture
Patent
1995-06-07
1999-07-27
Saucier, Sandra E.
Chemistry: molecular biology and microbiology
Animal cell, per se ; composition thereof; process of...
Two or more cell types, per se, in co-culture
435 703, 435371, 435373, 435375, 435377, C12N 508, C12P 2104
Patent
active
059289422
ABSTRACT:
Methods are provided for the establishment and maintenance in long term culture of hormone secreting cells. Cells are derived from tumorous or non-tumorous animal or human tissues, including ovary, endometrium, trophoblast, pituitary, thyroid, and pancreas. The cells secrete into the culture medium hormones such as estrogens, progestins, follicle-stimulating hormone, luteinizing hormone, human chorionic gonadotrophin, thyroxin, glucagon, and insulin, depending on the tissue of origin of individual cell cultures. Contact with an appropriate secretogogue causes the cells to respond with increased hormone secretion. For instance, ovarian follicular cells respond to follicle-stimulating hormone with increased estrogen and progesterone secretion. Pancreatic cells respond to elevated glucose with increased insulin secretion. The cells proliferate in in vitro for up to one year or longer, during which time they retain their hormone-secretion profile. The cells may be frozen for storage, and retain their hormone-secretion profile after thawing. The cell cultures are useful for the production of human hormones, for the bio-assay of drugs such as therapeutic gonadotrophins, for the testing of drug efficacy and design, and for toxicity testing of drugs and chemicals. The cells may also be implanted in an individual to replace deficient hormone secretion. For instance, insulin secreting pancreatic cells may be implanted in a diabetic individual as an adjunct or replacement therapy for exogenously administered insulin.
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Pacific Biomedical Research, Inc.
Saucier Sandra E.
Smith Karen S.
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