Ins1 gene up-regulated in a beta-cell line derived from Ins2 knockout mice. 2003

Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
Department of Genetics, Development and Molecular Pathology, Institut Cochin, INSERM, CNRS, Université René Descartes, Paris, France.

The authors have derived a new beta-cell line (betaIns2(-/-lacZ)) from Ins2-/- mice that carry the lacZ reporter gene under control of the Ins2 promoter. betaIns2(-/-lacZ) cells stained positively using anti-insulin antibody, expressed beta-cell-specific genes encoding the transcription factor PDX-1, glucokinase, and Glut-2, retained glucose-responsiveness for insulin secretion, and expressed the lacZ gene. Analysis of Ins1 expression by reverse transcriptase-polymerase chain reaction (RT-PCR) showed that Ins1 transcripts were significantly raised to compensate for the lack of Ins2 transcripts in betaIns2(-/-lacZ) cells, as compared to those found in betaTC1 cells expressing both Ins1/Ins2. Thus, transcriptional up-regulation of the remaining functional insulin gene in Ins2-/- mice could potentially contribute to the beta-cell adaptation exhibited by these mutants, in addition to the increase in beta-cell mass that we previously reported. We have also shown that lacZ expression, as analyzed by determining beta-galactosidase activity, was up-regulated by incubating betaIns2(-/-lacZ) cells with GLP-1 and/or IBMX, 2 known stimulators of insulin gene expression. These cells thus represent a new tool for testing of molecules capable of stimulating Ins2 promoter activity.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D007328 Insulin A 51-amino acid pancreatic hormone that plays a major role in the regulation of glucose metabolism, directly by suppressing endogenous glucose production (GLYCOGENOLYSIS; GLUCONEOGENESIS) and indirectly by suppressing GLUCAGON secretion and LIPOLYSIS. Native insulin is a globular protein comprised of a zinc-coordinated hexamer. Each insulin monomer containing two chains, A (21 residues) and B (30 residues), linked by two disulfide bonds. Insulin is used as a drug to control insulin-dependent diabetes mellitus (DIABETES MELLITUS, TYPE 1). Iletin,Insulin A Chain,Insulin B Chain,Insulin, Regular,Novolin,Sodium Insulin,Soluble Insulin,Chain, Insulin B,Insulin, Sodium,Insulin, Soluble,Regular Insulin
D007333 Insulin Resistance Diminished effectiveness of INSULIN in lowering blood sugar levels: requiring the use of 200 units or more of insulin per day to prevent HYPERGLYCEMIA or KETOSIS. Insulin Sensitivity,Resistance, Insulin,Sensitivity, Insulin
D007515 Islets of Langerhans Irregular microscopic structures consisting of cords of endocrine cells that are scattered throughout the PANCREAS among the exocrine acini. Each islet is surrounded by connective tissue fibers and penetrated by a network of capillaries. There are four major cell types. The most abundant beta cells (50-80%) secrete INSULIN. Alpha cells (5-20%) secrete GLUCAGON. PP cells (10-35%) secrete PANCREATIC POLYPEPTIDE. Delta cells (~5%) secrete SOMATOSTATIN. Islands of Langerhans,Islet Cells,Nesidioblasts,Pancreas, Endocrine,Pancreatic Islets,Cell, Islet,Cells, Islet,Endocrine Pancreas,Islet Cell,Islet, Pancreatic,Islets, Pancreatic,Langerhans Islands,Langerhans Islets,Nesidioblast,Pancreatic Islet
D008822 Mice, Transgenic Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN. Transgenic Mice,Founder Mice, Transgenic,Mouse, Founder, Transgenic,Mouse, Transgenic,Mice, Transgenic Founder,Transgenic Founder Mice,Transgenic Mouse
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D003433 Crosses, Genetic Deliberate breeding of two different individuals that results in offspring that carry part of the genetic material of each parent. The parent organisms must be genetically compatible and may be from different varieties or closely related species. Cross, Genetic,Genetic Cross,Genetic Crosses
D005947 Glucose A primary source of energy for living organisms. It is naturally occurring and is found in fruits and other parts of plants in its free state. It is used therapeutically in fluid and nutrient replacement. Dextrose,Anhydrous Dextrose,D-Glucose,Glucose Monohydrate,Glucose, (DL)-Isomer,Glucose, (alpha-D)-Isomer,Glucose, (beta-D)-Isomer,D Glucose,Dextrose, Anhydrous,Monohydrate, Glucose
D000078790 Insulin Secretion Production and release of insulin from PANCREATIC BETA CELLS that primarily occurs in response to elevated BLOOD GLUCOSE levels. Secretion, Insulin
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

Related Publications

Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
January 2023, Acta endocrinologica (Bucharest, Romania : 2005),
Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
January 2022, Acta endocrinologica (Bucharest, Romania : 2005),
Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
February 2001, Diabetes,
Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
March 2015, Diabetologia,
Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
November 2009, Scandinavian journal of immunology,
Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
April 1995, Proceedings of the National Academy of Sciences of the United States of America,
Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
April 2011, The Journal of biological chemistry,
Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
February 2014, Cell and tissue research,
Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
December 2004, Gene expression patterns : GEP,
Loïc Leroux, and Béatrice Durel, and Valérie Autier, and Louise Deltour, and Danielle Bucchini, and Jacques Jami, and Rajiv L Joshi
November 2009, Nutrition research (New York, N.Y.),
Copied contents to your clipboard!