Literature DB >> 15037123

Observation of A2E oxidation products in human retinal lipofuscin.

L B Avalle, Z Wang, J P Dillon, E R Gaillard.   

Abstract

Several retinal dystrophies are associated with the accumulation of lipofuscin in the retinal pigment epithelium (RPE). The only structurally characterized component of human retinal lipofuscin is the bis-retinoid pyridinium compound A2E. We report here on the observation of a monooxygenated product of A2E in the organic soluble portion of human retinal lipofuscin and in the organic extract of bovine RPE cells that have been fed A2E and irradiated. Liquid chromatography mass spectrometry confirms that the products are identical. This is the first observation of a photoproduct of A2E in human retinal lipofuscin.

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Year:  2004        PMID: 15037123     DOI: 10.1016/j.exer.2003.10.023

Source DB:  PubMed          Journal:  Exp Eye Res        ISSN: 0014-4835            Impact factor:   3.467


  15 in total

1.  Deuterium enrichment of vitamin A at the C20 position slows the formation of detrimental vitamin A dimers in wild-type rodents.

Authors:  Yardana Kaufman; Li Ma; Ilyas Washington
Journal:  J Biol Chem       Date:  2010-11-12       Impact factor: 5.157

2.  Molecule-specific imaging and quantitation of A2E in the RPE.

Authors:  Zsolt Ablonczy; Danielle B Gutierrez; Angus C Grey; Kevin L Schey; Rosalie K Crouch
Journal:  Adv Exp Med Biol       Date:  2012       Impact factor: 2.622

3.  Spatial localization of A2E in the retinal pigment epithelium.

Authors:  Angus C Grey; Rosalie K Crouch; Yiannis Koutalos; Kevin L Schey; Zsolt Ablonczy
Journal:  Invest Ophthalmol Vis Sci       Date:  2011-06-06       Impact factor: 4.799

4.  Spectral analysis of fundus autofluorescence pattern as a tool to detect early stages of degeneration in the retina and retinal pigment epithelium.

Authors:  Tatiana B Feldman; Marina A Yakovleva; Andrey V Larichev; Patimat M Arbukhanova; Alexandra Sh Radchenko; Sergey A Borzenok; Vladimir A Kuzmin; Mikhail A Ostrovsky
Journal:  Eye (Lond)       Date:  2018-05-22       Impact factor: 3.775

5.  Complement system dysregulation and inflammation in the retinal pigment epithelium of a mouse model for Stargardt macular degeneration.

Authors:  Roxana A Radu; Jane Hu; Quan Yuan; Darcy L Welch; Jacob Makshanoff; Marcia Lloyd; Stephen McMullen; Gabriel H Travis; Dean Bok
Journal:  J Biol Chem       Date:  2011-04-04       Impact factor: 5.157

6.  Mass spectrometry provides accurate and sensitive quantitation of A2E.

Authors:  Danielle B Gutierrez; Lorie Blakeley; Patrice W Goletz; Kevin L Schey; Anne Hanneken; Yiannis Koutalos; Rosalie K Crouch; Zsolt Ablonczy
Journal:  Photochem Photobiol Sci       Date:  2010-10-08       Impact factor: 3.982

7.  Cytotoxicity of all-trans-retinal increases upon photodegradation.

Authors:  Małgorzata Różanowska; Kinga Handzel; Michael E Boulton; Bartosz Różanowski
Journal:  Photochem Photobiol       Date:  2012-06-01       Impact factor: 3.421

8.  Immunochemical recognition of A2E, a pigment in the lipofuscin of retinal pigment epithelial cells.

Authors:  Chandima Abeywickrama; Hiroko Matsuda; Steffen Jockusch; Jilin Zhou; Young P Jang; Bi-Xing Chen; Yasuhiro Itagaki; Bernard F Erlanger; Koji Nakanishi; Nicholas J Turro; Janet R Sparrow
Journal:  Proc Natl Acad Sci U S A       Date:  2007-09-05       Impact factor: 11.205

9.  Heterogeneity of structure and fluorescence of single lipofuscin granule from retinal pigment epithelium of human donor eyes: study with the use of atomic force microscopy and near-field microscopy.

Authors:  A N Petrukhin; A A Astaf'ev; P N Zolotavin; T B Fel'dman; A E Dontsov; O M Sarkisov; M A Ostrovsky
Journal:  Dokl Biochem Biophys       Date:  2005 Nov-Dec       Impact factor: 0.788

10.  Morphological and physiological retinal degeneration induced by intravenous delivery of vitamin A dimers in rabbits.

Authors:  Jackie Penn; Doina M Mihai; Ilyas Washington
Journal:  Dis Model Mech       Date:  2014-12-12       Impact factor: 5.758

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