Journal ArticleDOI
Mutations in the parkin gene cause autosomal recessive juvenile parkinsonism
Tohru Kitada,Shuichi Asakawa,Nobutaka Hattori,Hiroto Matsumine,Yasuhiro Yamamura,Shinsei Minoshima,Masayuki Yokochi,Yoshikuni Mizuno,Nobuyoshi Shimizu +8 more
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TLDR
Mutations in the newly identified gene appear to be responsible for the pathogenesis of Autosomal recessive juvenile parkinsonism, and the protein product is named ‘Parkin’.Abstract:
Parkinson's disease is a common neurodegenerative disease with complex clinical features1. Autosomal recessive juvenile parkinsonism (AR-JP)2,3 maps to the long arm of chromosome 6 (6q25.2-q27) and is linked strongly to the markers D6S305 and D6S253 (ref. 4); the former is deleted in one Japanese AR-JP patient5. By positional cloning within this microdeletion, we have now isolated a complementary DNA clone of 2,960 base pairs with a 1,395-base-pair open reading frame, encoding a protein of 465 amino acids with moderate similarity to ubiquitin at the amino terminus and a RING-finger motif at the carboxy terminus. The gene spans more than 500 kilobases and has 12 exons, five of which (exons 3–7) are deleted in the patient. Four other AR-JP patients from three unrelated families have a deletion affecting exon 4 alone. A 4.5-kilobase transcript that is expressed in many human tissues but is abundant in the brain, including the substantia nigra, is shorter in brain tissue from one of the groups of exon-4-deleted patients. Mutations in the newly identified gene appear to be responsible for the pathogenesis of AR-JP, and we have therefore named the protein product ‘Parkin’.read more
Citations
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PARK2 enhancement is able to compensate mitophagy alterations found in sporadic Alzheimer's disease
TL;DR: The findings indicate that mitophagy alterations can be considered a new hallmark of sporadic AD and validate the use of fibroblasts for modelling this pathology.
Journal ArticleDOI
Oxidative stress, mitochondrial respiration, and Parkinson's disease.
TL;DR: It remains an open question to what extent the mitochondrial damage seen in Parkinson's disease is of genetic origin and how much is caused by H2O2 generated during enhanced turnover of DA, especially during treatment with L‐dopa.
Journal ArticleDOI
Protein misfolding in neurodegenerative diseases
Eleftherios I Agorogiannis,G. I. Agorogiannis,Alexandros Papadimitriou,Georgios M. Hadjigeorgiou +3 more
TL;DR: Understanding of the biochemical mechanisms involved in protein misfolding and fibrillization may optimize the planning of common therapeutic approaches for neurodegenerative diseases, directed towards reversal of protein mis Folding, blockade of protein oligomerization and interference with the action of toxic proteins.
Journal ArticleDOI
Autophagy impairment in Parkinson's disease.
TL;DR: How the mutations in different subtypes of PD can affect different stages of autophagy is described and a promising therapeutic strategy that is being explored for its potential to protect cells against the toxicity of aggregate-prone proteins in neurodegenerative diseases is explored.
Journal ArticleDOI
Defective autophagy in Parkinson's disease: role of oxidative stress.
TL;DR: The scientific evidence supporting different concepts on how autophagy is dysregulated in PD is examined and apparently contradictory views on the role of oxidative stress in autophagic regulation are attempted to reconcile.
References
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Book
Molecular Cloning: A Laboratory Manual
TL;DR: Molecular Cloning has served as the foundation of technical expertise in labs worldwide for 30 years as mentioned in this paper and has been so popular, or so influential, that no other manual has been more widely used and influential.
Journal ArticleDOI
Mutation in the α-synuclein gene identified in families with Parkinson's disease
Mihael H. Polymeropoulos,Christian Lavedan,Elisabeth Leroy,Susan E. Ide,Anindya Dehejia,Amalia Dutra,Brian L. Pike,Holly Root,Jeffrey Rubenstein,Rebecca Boyer,Edward S. Stenroos,Settara C. Chandrasekharappa,Aglaia Athanassiadou,Theodore Papapetropoulos,William G. Johnson,Alice Lazzarini,Roger C. Duvoisin,Giuseppe Di Iorio,Lawrence I. Golbe,Robert L. Nussbaum +19 more
TL;DR: A mutation was identified in the α-synuclein gene, which codes for a presynaptic protein thought to be involved in neuronal plasticity, in the Italian kindred and in three unrelated families of Greek origin with autosomal dominant inheritance for the PD phenotype.
Journal ArticleDOI
Alpha-synuclein in Lewy bodies.
Maria Grazia Spillantini,Marie L. Schmidt,Virginia M.-Y. Lee,John Q. Trojanowski,Ross Jakes,Michel Goedert +5 more
TL;DR: Strong staining of Lewy bodies from idiopathic Parkinson's disease with antibodies for α-synuclein, a presynaptic protein of unknown function which is mutated in some familial cases of the disease, indicates that the LewY bodies from these two diseases may have identical compositions.
Journal ArticleDOI
Mitochondrial complex I deficiency in Parkinson's disease.
TL;DR: Results indicated a specific defect of Complex I activity in the substantia nigra of patients with Parkinson's disease, which adds further support to the proposition that Parkinson’s disease may be due to an environmental toxin with action(s) similar to those of MPTP.
Journal ArticleDOI
The ubiquitin-proteasome proteolytic pathway
TL;DR: Two studies clearly demonstrate that the ubiquitin-proteasome system is involved not only in complete destruction of its protein substrates, but also in limited proteolysis and posttranslational processing in which biologically active peptides or fragments are generated.
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