CHARACTERIZATION OF NEUROTENSIN(6-13) FROM AN HEPATIC FIBROLAMELLAR CARCINOMA
- Author(s)
- READ, D; Shulkes, A; Fernley, R; Simpson, R;
- Details
- Publication Year 1991-07,Volume 12,Issue #4,Page 887-892
- Journal Title
- PEPTIDES
- Publication Type
- Journal Article
- Abstract
- Neurotensin(6-13) has been isolated and sequenced as the major form of neurotensin-like immunoreactivity (NTLI) in a human hepatic fibrolamellar carcinoma. Circulating NTLI in the patient, especially C-terminal, was very high. In additional studies, NT(6-13) was synthesized and compared with the purified tumor NTLI by HPLC analysis and by testing stability in plasma in vitro. These methods confirmed that the tumor NTLI was identical to NT(6-13). Since the metabolic clearance rate of synthetic NT(6-13) in sheep was 30-fold higher than NT(1-13), it suggests that the elevated plasma levels are the result of impaired clearance and/or markedly elevated production.
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- CONVERTING ENZYME; SMALL-INTESTINE; PLASMA; RAT; PEPTIDASES; METABOLISM; LIVER; DEGRADATION; MEMBRANES; SECRETION
- Publisher's Version
- https://doi.org/10.1016/0196-9781(91)90152-F
- Terms of Use/Rights Notice
- Refer to copyright notice on published article.
Creation Date: 1991-07-01 12:00:00