Abstract

Partial hepatectomy in the rat dramatically disrupts hepatocellular microtubule in the remnant liver, as seen by confocal microscopy of liver sections. The resulting """"""""microtubuleless"""""""" hepatocyte has provided us with a unique in vivo system, in which a variety of studies can be carried out. We will examine the mechanism of microtubule disruption, including the role of cell cycle-specific gene products and the effects of hormones and growth factors. We will also determine the effect of microtubule disruption on 1) intracellular transport and sorting of vesicles, a process normally dependent on intact microtubule, and 2) gene targeting, which is greatly facilitated by partial hepatectomy and possibly by the concurrent loss of tubules. These studies, which employ the unique """"""""optical sectioning"""""""" capability of the laser scanning confocal microscope, have the advantage of utilizing native hepatocellular tissue rather than cells in culture, permitting us to observe events in a truly physiologic setting.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Type
Center Core Grants (P30)
Project #
5P30DK041296-10
Application #
6105405
Study Section
Project Start
1998-06-24
Project End
1999-05-31
Budget Start
Budget End
Support Year
10
Fiscal Year
1998
Total Cost
Indirect Cost

  Institution

Name
Albert Einstein College of Medicine
Department
Type
DUNS #
009095365
City
Bronx
State
NY
Country
United States
Zip Code
10461

  Publications

Walters, Ryan O; Arias, Esperanza; Diaz, Antonio et al. (2018) Sarcosine Is Uniquely Modulated by Aging and Dietary Restriction in Rodents and Humans. Cell Rep 25:663-676.e6
Liu, Zhongbo; Apontes, Pasha; Fomenko, Ekaterina V et al. (2018) Mangiferin Accelerates Glycolysis and Enhances Mitochondrial Bioenergetics. Int J Mol Sci 19:
Tekirdag, Kumsal; Cuervo, Ana Maria (2018) Chaperone-mediated autophagy and endosomal microautophagy: Joint by a chaperone. J Biol Chem 293:5414-5424
Zhao, Rongbao; Najmi, Mitra; Aluri, Srinivas et al. (2018) Concentrative Transport of Antifolates Mediated by the Proton-Coupled Folate Transporter (SLC46A1); Augmentation by a HEPES Buffer. Mol Pharmacol 93:208-215
Amengual, Jaume; Guo, Liang; Strong, Alanna et al. (2018) Autophagy Is Required for Sortilin-Mediated Degradation of Apolipoprotein B100. Circ Res 122:568-582
Schneider, Michael; Kumar, Vivek; Nordstrøm, Lars Ulrik et al. (2018) Inhibition of Delta-induced Notch signaling using fucose analogs. Nat Chem Biol 14:65-71
Iqbal, Niloy Jafar; Lu, Zhonglei; Liu, Shun Mei et al. (2018) Cyclin-dependent kinase 4 is a preclinical target for diet-induced obesity. JCI Insight 3:
Galsgaard, Katrine D; Winther-Sørensen, Marie; Ørskov, Cathrine et al. (2018) Disruption of glucagon receptor signaling causes hyperaminoacidemia exposing a possible liver-alpha-cell axis. Am J Physiol Endocrinol Metab 314:E93-E103
Shen, Ling; Liu, Yin; Tso, Patrick et al. (2018) Silencing steroid receptor coactivator-1 in the nucleus of the solitary tract reduces estrogenic effects on feeding and apolipoprotein A-IV expression. J Biol Chem 293:2091-2101
Dulyaninova, Natalya G; Ruiz, Penelope D; Gamble, Matthew J et al. (2018) S100A4 regulates macrophage invasion by distinct myosin-dependent and myosin-independent mechanisms. Mol Biol Cell 29:632-642

Showing the most recent 10 out of 451 publications