Daniele Ghezzi

Summary

Affiliation: Foundation IRCCS Institute of Neurology "Besta"
Location: Milan, Italy
Summary:
The main interest of Dr. Ghezzi is the discovery of new genes responsible for mitochondrial disorders and the characterization of their role. These disorders are very heterogeneous and hence the diagnosis is often difficult. Moreover mitochondrial dysfunctions are now clearly related to a wide range of disease conditions, above all neurodegeneration (i.e. Parkinsons disease).

Publications

  1. Marongiu R, Ferraris A, Ialongo T, Michiorri S, Soleti F, Ferrari F, et al. PINK1 heterozygous rare variants: prevalence, significance and phenotypic spectrum. Hum Mutat. 2008;29:565 pubmed publisher
    ..Hence, their significance should be kept distinct from that of homozygous/compound heterozygous mutations, that cause parkinsonism inherited in a mendelian fashion. ..
  2. Ghezzi D, Baruffini E, Haack T, Invernizzi F, Melchionda L, Dallabona C, et al. Mutations of the mitochondrial-tRNA modifier MTO1 cause hypertrophic cardiomyopathy and lactic acidosis. Am J Hum Genet. 2012;90:1079-87 pubmed publisher
    ..Lastly, in vivo mtDNA translation was impaired in the mutant yeast strains. ..
  3. Ghezzi D, Viscomi C, Ferlini A, Gualandi F, Mereghetti P, DeGrandis D, et al. Paroxysmal non-kinesigenic dyskinesia is caused by mutations of the MR-1 mitochondrial targeting sequence. Hum Mol Genet. 2009;18:1058-64 pubmed publisher
    ..We found no difference in import efficiency and protein maturation between wild-type and mutant MR-1 variants. These results indicate that PNKD is due to a novel disease mechanism based on a deleterious action of the MTS. ..
  4. Steenweg M, Ghezzi D, Haack T, Abbink T, Martinelli D, van Berkel C, et al. Leukoencephalopathy with thalamus and brainstem involvement and high lactate 'LTBL' caused by EARS2 mutations. Brain. 2012;135:1387-94 pubmed publisher
  5. Dallabona C, Marsano R, Arzuffi P, Ghezzi D, Mancini P, Zeviani M, et al. Sym1, the yeast ortholog of the MPV17 human disease protein, is a stress-induced bioenergetic and morphogenetic mitochondrial modulator. Hum Mol Genet. 2010;19:1098-107 pubmed publisher
  6. Ghezzi D, Sevrioukova I, Invernizzi F, Lamperti C, Mora M, d Adamo P, et al. Severe X-linked mitochondrial encephalomyopathy associated with a mutation in apoptosis-inducing factor. Am J Hum Genet. 2010;86:639-49 pubmed publisher
  7. Ghezzi D, Zeviani M. Assembly factors of human mitochondrial respiratory chain complexes: physiology and pathophysiology. Adv Exp Med Biol. 2012;748:65-106 pubmed publisher
    ..We present an overview on the hypothesized assembly processes of the different MRC complexes, focusing on known assembly factors and their clinical importance. ..
  8. Marongiu R, Ghezzi D, Ialongo T, Soleti F, Elia A, Cavone S, et al. Frequency and phenotypes of LRRK2 G2019S mutation in Italian patients with Parkinson's disease. Mov Disord. 2006;21:1232-5 pubmed
    ..2%. All presented a typical phenotype with variable onset and shared the common ancestral haplotype. Mutation frequency raised from 1.2% in early onset PD to 4.0% in late onset PD. ..
  9. Nardocci N, Zorzi G, Barzaghi C, Zibordi F, Ciano C, Ghezzi D, et al. Myoclonus-dystonia syndrome: clinical presentation, disease course, and genetic features in 11 families. Mov Disord. 2008;23:28-34 pubmed
    ..The disease course was variable, from progression to spontaneous remission of the motor symptoms. There were no obvious differences between mutation-positive and -negative cases. ..

Detail Information

Publications18

  1. Ghezzi D, Saada A, d Adamo P, Fernandez Vizarra E, Gasparini P, Tiranti V, et al. FASTKD2 nonsense mutation in an infantile mitochondrial encephalomyopathy associated with cytochrome c oxidase deficiency. Am J Hum Genet. 2008;83:415-23 pubmed publisher
    ..The corresponding protein is localized in the mitochondrial inner compartment. Preliminary data indicate that FASTKD2 plays a role in mitochondrial apoptosis. ..
  2. Uziel G, Ghezzi D, Zeviani M. Infantile mitochondrial encephalopathy. Semin Fetal Neonatal Med. 2011;16:205-15 pubmed publisher
    ..e. the mitochondrial respiratory chain. ..
  3. Ghezzi D, Marelli C, Achilli A, Goldwurm S, Pezzoli G, Barone P, et al. Mitochondrial DNA haplogroup K is associated with a lower risk of Parkinson's disease in Italians. Eur J Hum Genet. 2005;13:748-52 pubmed
    ..Our study suggests that haplogroup K might confer a lower risk for PD in Italians, corroborating the idea that the mitochondrial oxidative phosphorylation pathway is involved in the susceptibility to idiopathic PD. ..
  4. Ghezzi D, Arzuffi P, Zordan M, Da Re C, Lamperti C, Benna C, et al. Mutations in TTC19 cause mitochondrial complex III deficiency and neurological impairment in humans and flies. Nat Genet. 2011;43:259-63 pubmed publisher
    ..TTC19 is a putative cIII assembly factor whose disruption is associated with severe neurological abnormalities in humans and flies. ..
  5. Ghezzi D, Goffrini P, Uziel G, Horvath R, Klopstock T, Lochmuller H, et al. SDHAF1, encoding a LYR complex-II specific assembly factor, is mutated in SDH-defective infantile leukoencephalopathy. Nat Genet. 2009;41:654-6 pubmed publisher
    ..SDHAF1 is the first bona fide SDH assembly factor reported in any organism. ..
  6. Sironi F, Primignani P, Zini M, Tunesi S, Ruffmann C, Ricca S, et al. Parkin analysis in early onset Parkinson's disease. Parkinsonism Relat Disord. 2008;14:326-33 pubmed publisher
    ..735delT (p.C212/X224) and c.815C>G (p.C238W). Genotype-phenotype correlation revealed that parkin carriers had features similar to those of non-carrier early onset Parkinson disease patients. ..
  7. Romito L, Contarino M, Ghezzi D, Franzini A, Garavaglia B, Albanese A. High frequency stimulation of the subthalamic nucleus is efficacious in Parkin disease. J Neurol. 2005;252:208-11 pubmed
    ..We confirm that the current inclusion criteria for STN HFS do not exclude patients carrying mutations in the parkin gene; their clinical outcome is comparable to that of the non-parkin group. ..
  8. Brea Calvo G, Haack T, Karall D, Ohtake A, Invernizzi F, Carrozzo R, et al. COQ4 mutations cause a broad spectrum of mitochondrial disorders associated with CoQ10 deficiency. Am J Hum Genet. 2015;96:309-17 pubmed publisher
    ..COQ4 mutations are responsible for early-onset mitochondrial diseases with heterogeneous clinical presentations and associated with CoQ10 deficiency. ..
  9. Legati A, Reyes A, Nasca A, Invernizzi F, Lamantea E, Tiranti V, et al. New genes and pathomechanisms in mitochondrial disorders unraveled by NGS technologies. Biochim Biophys Acta. 2016;1857:1326-1335 pubmed publisher
    ..This article is part of a Special Issue entitled 'EBEC 2016: 19th European Bioenergetics Conference, Riva del Garda, Italy, July 2-6, 2016', edited by Prof. Paolo Bernardi. ..