Abstract

The protein-tyrosine kinase receptor Tyro-3 is expressed in postnatal brain where it is abundant in cortex, hippocampus and the granule cells of the cerebellum. We have generated a rabbit polyclonal antiserum which recognized the cytoplasmic tail region of this receptor. This antibody specifically stains apparent dendritic structures in CAl hippocampal neurons. we are interested in identifying the precise location of the Tyro-3 protein within these dendrites in order to determine if it is restricted in expression to the synapse or to other specialized structures such as dendritic spines. The molecule gas6 has been identified as a possible ligand for Tyro-3. We are also intersted in determining the location of this ligand in relationsh to that of its receptor. We will be using the confocal and EM facilities and the expertise of the NCMIR staff to carry out the light and EM localization. We will use a combination of single and double labeling light microscopy to first map the distribution of Tyro-3. Work on this part of the project is underway. This work will be followed by high resolution EM mapping using colloidal gold or photo-oxidation approaches.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR004050-08
Application #
5224713
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
8
Fiscal Year
1996
Total Cost
Indirect Cost

  Publications

Funakoshi, Shunsuke; Miki, Kenji; Takaki, Tadashi et al. (2016) Enhanced engraftment, proliferation, and therapeutic potential in heart using optimized human iPSC-derived cardiomyocytes. Sci Rep 6:19111
Rubio-Marrero, Eva N; Vincelli, Gabriele; Jeffries, Cy M et al. (2016) Structural Characterization of the Extracellular Domain of CASPR2 and Insights into Its Association with the Novel Ligand Contactin1. J Biol Chem 291:5788-802
Yin, Xinghua; Kidd, Grahame J; Ohno, Nobuhiko et al. (2016) Proteolipid protein-deficient myelin promotes axonal mitochondrial dysfunction via altered metabolic coupling. J Cell Biol 215:531-542
Zhao, Claire Y; Greenstein, Joseph L; Winslow, Raimond L (2016) Roles of phosphodiesterases in the regulation of the cardiac cyclic nucleotide cross-talk signaling network. J Mol Cell Cardiol 91:215-27
Rajagopal, Vijay; Bass, Gregory; Walker, Cameron G et al. (2015) Examination of the Effects of Heterogeneous Organization of RyR Clusters, Myofibrils and Mitochondria on Ca2+ Release Patterns in Cardiomyocytes. PLoS Comput Biol 11:e1004417
Schachtrup, Christian; Ryu, Jae Kyu; Mammadzada, Könül et al. (2015) Nuclear pore complex remodeling by p75(NTR) cleavage controls TGF-? signaling and astrocyte functions. Nat Neurosci 18:1077-80
Sanders, Matthew A; Madoux, Franck; Mladenovic, Ljiljana et al. (2015) Endogenous and Synthetic ABHD5 Ligands Regulate ABHD5-Perilipin Interactions and Lipolysis in Fat and Muscle. Cell Metab 22:851-60
Takeshima, Hiroshi; Hoshijima, Masahiko; Song, Long-Sheng (2015) Ca²? microdomains organized by junctophilins. Cell Calcium 58:349-56
Mills, Elizabeth A; Davis, Chung-ha O; Bushong, Eric A et al. (2015) Astrocytes phagocytose focal dystrophies from shortening myelin segments in the optic nerve of Xenopus laevis at metamorphosis. Proc Natl Acad Sci U S A 112:10509-14
Kim, K-Y; Perkins, G A; Shim, M S et al. (2015) DRP1 inhibition rescues retinal ganglion cells and their axons by preserving mitochondrial integrity in a mouse model of glaucoma. Cell Death Dis 6:e1839

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