Neurobiology of Disease -Internexin Is Structurally and Functionally Associated with the Neurofilament Triplet Proteins in the Mature CNS
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چکیده
Aidong Yuan,1,3 Mala V. Rao,1,3 Takahiro Sasaki,1 Yuanxin Chen,1,2 Asok Kumar,1,3 Veeranna,1,3 Ronald K. H. Liem,5 Joel Eyer,6 Alan C. Peterson,7 Jean-Pierre Julien,8 and Ralph A. Nixon1,3,4 1Center for Dementia Research and 2Department of Medical Physics, Nathan Kline Institute, Orangeburg, New York 10962, Departments of 3Psychiatry and 4Cell Biology, New York University School of Medicine, New York, New York 10016, 5Department of Pathology, College of Physicians and Surgeons, Columbia University, New York, New York 10032, 6Laboratoire Neurobiologie et Transgenese, Institut National de la Santé et de la Recherche Médicale, Centre Hospitalier Universitaire, 49033 Angers Cedex, France, 7Molecular Oncology Group, McGill University, Royal Victoria Hospital, Montreal, Québec, Canada H3A1A1, and 8Centre de Recherche du Centre Hospitalier de l’Université Laval, Département d’anatomie et Physiologie de l’Université Laval, Québec, Québec, Canada G1V 4G2
منابع مشابه
Peripherin is a subunit of peripheral nerve neurofilaments: implications for differential vulnerability of CNS and peripheral nervous system axons.
Peripherin, a neuronal intermediate filament protein implicated in neurodegenerative disease, coexists with the neurofilament triplet proteins [neurofilament light (NFL), medium (NFM), and heavy (NFH) chain] but has an unknown function. The earlier peak expression of peripherin than the triplet during brain development and its ability to form homopolymers, unlike the triplet, which are obligate...
متن کاملAssembly of type IV neuronal intermediate filaments in nonneuronal cells in the absence of preexisting cytoplasmic intermediate filaments
We report here on the in vivo assembly of alpha-internexin, a type IV neuronal intermediate filament protein, in transfected cultured cells, comparing its assembly properties with those of the neurofilament triplet proteins (NF-L, NF-M, and NF-H). Like the neurofilament triplet proteins, alpha-internexin coassembles with vimentin into filaments. To study the assembly characteristics of these pr...
متن کاملAlpha-internexin, a novel neuronal intermediate filament protein, precedes the low molecular weight neurofilament protein (NF-L) in the developing rat brain.
alpha-Internexin is a 66 kDa protein that copurifies with intermediate filaments (IF) from rat spinal cord and optic nerve. This protein is axonally transported in rat optic nerve along with the neurofilament triplet proteins in slow component a. Polymerization in vitro and distribution in vivo confirm that alpha-internexin is a neuronal IF. We raised 2 highly specific monoclonal antibodies to ...
متن کاملDysfunctions of neuronal and glial intermediate filaments in disease.
Intermediate filaments (IFs) are abundant structures found in most eukaryotic cells, including those in the nervous system. In the CNS, the primary components of neuronal IFs are alpha-internexin and the neurofilament triplet proteins. In the peripheral nervous system, a fifth neuronal IF protein known as peripherin is also present. IFs in astrocytes are primarily composed of glial fibrillary a...
متن کاملPeripherin Is a Subunit of Peripheral Nerve Neurofilaments: Implications for Differential Vulnerability of CNS and PNS Axons
Peripherin, a neuronal intermediate filament protein implicated in neurodegenerative disease, coexists with the neurofilament triplet proteins (NFL, NFM, and NFH) but has an unknown function. The earlier peak expression of peripherin than the triplet during brain development and its ability to form homopolymers, unlike the triplet, which are obligate heteropolymers, have supported a widely held...
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تاریخ انتشار 2006