General descriptionGlucose-stimulated insulin secretion (GSIS) is potentiated by pancreatic beta cells and is critical to the physiological control of blood glucose levels. Insulin secretion is impaired in type 2 diabetes, and insight into the mechanisms and regulation of insulin secretion is fundamental to understanding the roles of beta cells in metabolic disease.
The rat insulinoma cell line INS-1 is a well-established model for studies of pancreatic islet beta-cell function ; however, the GSIS response of INS-1 cells may decrease over time. The INS-1 832/3 cell line is a subclone of INS-1 that was selected for robust GSIS, producing and secreting both rat and human insulin. INS-1 832/3 harbors a human insulin expression cassette allowing for human insulin secretion to be maintained over extended passages with selection . INS-1 832/3 cells are widely used to study the mechanisms of cellular insulin secretion, storage and synthesis. INS-1 832/3 cells may be characterized by granular staining for synaptotagmin, as described for the parental cell line . The INS-1 832/3 cell line exhibits the unique feature of additional insulin secretion in response to natural incretin hormones such as glucagon-like peptide 1 (GLP1), pituitary adenylate cyclase-activating peptide (PACAP), and gastric inhibitory peptide (PIP) , making INS-1 832/3 a valuable tool for physiologically relevant investigations of insulin regulation.
Source:
INS-1 832/3 is a derivative of INS-1 cells originally established from an x-ray induced insulinoma in rat1. The INS-1 832/3 cell line is a subclone of INS-1 that was stably transfected with a CMV promoter-human insulin expression plasmid carrying a geneticin (G418)-resistance marker for selection .
ApplicationINS-1 832/3 rat insulinoma cell line is a useful model for insulin secretion regulation and pancreatic islet beta-cell function studies.
Research Category
Metabolism
Research Sub Category
Diabetes
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Biochem/physiol ActionsCancer Cells
Preparation NoteStore in liquid nitrogen. The cells can be cultured for at least 10 passages after initial thawing without significantly affecting the cell marker expression and functionality.
Analysis Note• Each vial contains ≥ 1X10⁶ viable cells.
• Cells are tested negative for infectious diseases by a Mouse/Rat Comprehensive CLEAR panel by Charles River Animal Diagnostic Services.
• Cells are verified to be of rat origin and negative for inter-species contamination from mouse, chinese hamster, Golden Syrian hamster, human and non-human primate (NHP) as assessed by a Contamination CLEAR panel by Charles River Animal Diagnostic Services.
• Cells are negative for mycoplasma contamination.
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