Abstract: Recombinant transgenic mice expressing leukemia inhibitory factor (LIF) in the pituitary. The transgenic mice of the invention are suitable for use as animal models of pituitary disorders, as well as for identifying compounds which stimulate growth hormone production, for the treatment of physiological disorders associated with growth retardation and pituitary developmental retardation disorders, such as chraneopharyngioma, and pituitary cysts, among others.

Abstract: An analogue peptide that comprises the variable regions of the light or heavy chains of an antibody of a first species selectively binding to a carcinoma antigen has 1 to 46 amino acids of the framework regions per chain substituted with amino acids such as those present in equivalent positions in antibodies of a species other than the first species, or fragments thereof comprising 1 to 3 variable region CDRs per chain and optionally flanking regions thereof of 1 to 10 or more amino acids, alone or with an N-terminal fragment of 1 to 10 or more amino acids, combinations or mixtures thereof. The polypeptide may also comprise an effector agent and/or be glycosylated, and is presented as a composition with a carrier. The analogue peptides are used in diagnostic kits for carcinomas and methods for in vivo imaging and treating a primary or metastasized carcinoma, and in vitro diagnosing a carcinoma, ex vivo purging neoplastic cells from a biological fluid.