1
|
Fanta LE, Ewer SM, Gimelli G, Reilly NM. Alcohol septal ablation for left ventricular outflow tract obstruction in cardiac amyloidosis: New indication for an established therapy. Catheter Cardiovasc Interv 2022; 100:910-914. [PMID: 36153647 PMCID: PMC9825832 DOI: 10.1002/ccd.30411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/06/2022] [Indexed: 01/11/2023]
Abstract
Cardiac amyloidosis can occasionally demonstrate an atypical pattern of infiltration, causing asymmetric septal thickening and a left ventricular outflow tract (LVOT) gradient with systolic anterior motion (SAM) of the mitral valve resembling obstructive hypertrophic cardiomyopathy. We present a case of a 70-year-old man with cardiac light-chain amyloidosis and LVOT obstruction successfully treated with alcohol septal ablation (ASA). Following the procedure, he reported significant improvement in his heart failure symptoms as well as improvement in LVOT gradient and SAM of the mitral valve. This case demonstrates that ASA is a technically feasible and effective procedure for relieving LVOT obstruction in cardiac amyloidosis and can be considered as a treatment option in patients whose symptoms are refractory to medical therapy.
Collapse
Affiliation(s)
- Lauren E. Fanta
- Department of Internal MedicineUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
| | - Steven M. Ewer
- Department of Medicine, Division of Cardiovascular MedicineUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
| | - Giorgio Gimelli
- Department of Medicine, Division of Cardiovascular MedicineUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
| | - Nicole M. Reilly
- Department of Medicine, Division of Cardiovascular MedicineUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
| |
Collapse
|
2
|
Waqar A, Rajput F, Rachwan RJ, Abi-Saab T, Gimelli G. LUCAS compression device-related severe injuries in a series of patients presenting with outside hospital cardiac arrest. J Cardiol Cases 2022; 26:432-435. [PMID: 36506494 PMCID: PMC9727558 DOI: 10.1016/j.jccase.2022.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/05/2022] Open
Abstract
This case series presents patients who presented to the hospital with an outside hospital cardiac arrest and were initially resuscitated successfully. All patients suffered fatal traumatic injuries during the resuscitation process with the common variable being the use of mechanical cardiopulmonary resuscitation (CPR) device. The goal of this case series is to describe the limitations and potential fatal side effects of CPR. We also present a review of literature with our impressions of the appropriate indications for the use of mechanical CPR. Learning objectives 1) Recognize appropriate indications for the use of mechanical vs manual cardiopulmonary resuscitation (CPR). 2) Identify signs and symptoms of mechanical CPR-related complications.
Collapse
Affiliation(s)
- Aneeq Waqar
- Department of Cardiovascular Medicine, University of Wisconsin, Madison, WI, USA,Corresponding author at: Department of Cardiovascular Medicine, University of Wisconsin, Madison, WI, USA.
| | - Furqan Rajput
- Department of Cardiovascular Medicine, University of Wisconsin, Madison, WI, USA
| | - Rayan Jo Rachwan
- Department of Cardiovascular Medicine, University of Wisconsin, Madison, WI, USA
| | - Tarek Abi-Saab
- Department of Pathology, University of Wisconsin, Madison, WI, USA
| | - Giorgio Gimelli
- Department of Cardiovascular Medicine, University of Wisconsin, Madison, WI, USA
| |
Collapse
|
3
|
Tassano E, Uccella S, Ronchetto P, Martinheira Da Silva JS, Viaggi S, Mancardi M, Ramenghi L, Murri A, Biondi M, Gimelli G, Morerio C, Malacarne M, Coviello D. Interstitial 2q24.2q24.3 Microdeletion: Two New Cases with Similar Clinical Features with the Exception of Profound Deafness. Cytogenet Genome Res 2022; 162:132-139. [PMID: 35896065 DOI: 10.1159/000525181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 04/28/2022] [Indexed: 11/19/2022] Open
Abstract
Interstitial 2q24.2q24.3 microdeletions are rare cytogenetic aberrations associated with heterogeneous clinical features depending on the size of the deletion. Here, we describe 2 patients with overlapping de novo 2q24.2q24.3 deletions, characterized by array-CGH. This is the smallest 2q24.2q24.3 region of overlap described in the literature encompassing only 9 genes (SLC4A10, DPP4, GCG, FAP, IFIH1, GCA, KCNH7, FIGN, GRB14). We focused our attention on SLC4A10, DPP4, and KCNH7, genes associated with neurological features. Our patients presented similar features: intellectual disability, developmental and language delay, hypotonia, joint laxity, and dysmorphic features. Only patient 2 showed profound deafness and also carried a heterozygous mutation of the GJB2 gene responsible for autosomal recessive deafness 1A (DFNB1A: OMIM 220290). Could the disruption of a gene present in the 2q24.2q24.3 deleted region be responsible for her profound hearing loss?
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratory of Human Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy,
| | - Sara Uccella
- Department of Medical and Surgical Neuroscience and Rehabilitation, University of Genoa, Genoa, Italy.,Child Neuropsychiatry Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy.,Neonatolgy Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Patrizia Ronchetto
- Laboratory of Human Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Joana Soraia Martinheira Da Silva
- Laboratory of Human Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Silvia Viaggi
- Laboratory of Human Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy.,DISTAV, University of Genoa, Genoa, Italy
| | | | - Luca Ramenghi
- Neonatolgy Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Alessandra Murri
- Unità Operativa di Otorinolaringoiatria, Ospedale Guglielmo da Saliceto, Piacenza, Italy
| | - Marina Biondi
- Unità Operativa di Radiologia, Ospedale Guglielmo da Saliceto, Piacenza, Italy
| | - Giorgio Gimelli
- Laboratory of Cytogenetics, IRCCS Giannina Gaslini, Genoa, Italy
| | - Cristina Morerio
- Laboratory of Human Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Michela Malacarne
- Laboratory of Human Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Domenico Coviello
- Laboratory of Human Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| |
Collapse
|
4
|
Wolff MR, Jergenson M, Gimelli G, Osaki S, Raval A, Jacobson KM. CHANGES IN LEFT VENTRICULAR FUNCTION AFTER TAVR IN AORTIC STENOSIS AND REDUCED LV EJECTION FRACTION WITH AND WITHOUT COMPLEX CAD. J Am Coll Cardiol 2022. [DOI: 10.1016/s0735-1097(22)01746-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
5
|
Saito Y, Lewis EE, Raval A, Gimelli G, Jacobson K, Osaki S. Prognosis of paradoxical low-flow low-gradient aortic stenosis after transcatheter aortic valve replacement. J Cardiovasc Med (Hagerstown) 2021; 22:486-491. [PMID: 33229861 DOI: 10.2459/jcm.0000000000001139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS In paradoxical low-flow low-gradient severe aortic stenosis (PLFLG AS) patients, stroke volume index (SVI) is reduced despite preserved left ventricular ejection fraction (LVEF). Although reduced SVI is already known as a poor prognostic predictor, the outcomes of PLFLG AS patients after transcatheter aortic valve replacement (TAVR) have not been clearly defined. We retrospectively investigated the post-TAVR outcomes of PLFLG AS patients in comparison with normal-flow high-gradient aortic stenosis (NFHG AS) patients. METHODS The current observational study included 245 patients with NFHG AS (mean transaortic pressure gradient ≥40 mmHg and LVEF ≥ 50%) and 48 patients with PLFLG AS (mean transaortic pressure gradient <40 mmHg, LVEF ≥ 50% and SVI < 35 ml/m2). The endpoints were all-cause mortality, hospitalization for valve-related symptoms or worsening congestive heart failure and New York Heart Association functional class III or IV. RESULTS PLFLG AS patients had a significantly higher proportion with a history of atrial fibrillation/flutter as compared with NFHG AS patients. All-cause mortality of PLFLG AS patients was worse than that of NFHG AS patients (P = 0.047). Hospitalization for valve-related symptoms or worsening congestive heart failure was more frequent in PLFLG AS patients than in NFHG AS patients (P = 0.041). New York Heart Association functional class III-IV after TAVR was more frequently observed in PLFLG AS patients (P = 0.019). CONCLUSION The outcomes of PLFLG AS patients were worse than those of NFHG AS patients in this study. Preexisting atrial fibrillation/flutter was frequent in PLFLG AS patients, and may affect their post-TAVR outcomes. Therefore, closer post-TAVR follow-up should be considered for these patients.
Collapse
Affiliation(s)
| | - Erik E Lewis
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | | | | | | | - Satoru Osaki
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| |
Collapse
|
6
|
Abstract
Objective Aortic stenosis (AS) is common among elderly patients. Since transcatheter aortic valve replacement (TAVR) is a less invasive procedure than surgical aortic valve replacement for symptomatic severe AS, super-elderly patients have tended to undergo TAVR. We retrospectively investigated the post-TAVR outcome in super-elderly patients with severe AS. Methods This analysis included 433 patients who underwent TAVR in the University of Wisconsin Hospital and Clinics from 2012 to 2017. Post-TAVR mortality, complications in-hospital, rehospitalization, the New York Heart Association (NYHA) functional class and echocardiographic parameters were compared between patients <85 years old (n = 290) and ≥85 years old (n = 143). Results The patients ≥85 years old less frequently had a history of coronary artery disease (73.1% vs. 62.2%, p=0.026) and hypertension (87.2% vs. 77.6%, p=0.012) than younger patients. Furthermore, the patients ≥85 years old had moderate-severe mitral regurgitation more frequently (19.3% vs. 28.7%, p=0.037) at baseline than younger patients. There was no significant difference in in-hospital outcomes between the age groups. The 30-day mortality was worse in patients ≥85 years old than in younger ones (0.7% vs. 3.5%, p=0.042). While there was no significant difference in the long-term mortality between the 2 groups, the estimated 1-year mortality from Kaplan-Meier curves were 9.6% in patients <85 years old and 14.9% in patients ≥85 years old. The rate of in-hospital complications, rehospitalization rate, improvement in the NYHA functional class and echocardiographic parameters were comparable between the two groups. Conclusion The outcomes of super-elderly patients after TAVR were acceptable, suggesting that these patients could benefit from TAVR.
Collapse
Affiliation(s)
- Yukihiro Saito
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, USA
| | - Erik E Lewis
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, USA
| | - Amish Raval
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, USA
| | - Giorgio Gimelli
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, USA
| | - Kurt M Jacobson
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, USA
| | - Satoru Osaki
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, USA
| |
Collapse
|
7
|
Tassano E, Uccella S, Severino M, Giacomini T, Nardi F, Gimelli G, Tavella E, Ronchetto P, Malacarne M, Coviello D. Expanding the phenotype associated with interstitial 6p25.1p24.3 microdeletion: a new case and review of the literature. J Genet 2021; 100:9. [PMID: 33707360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Interstitial 6p25.1p24.3 microdeletions are rare events and a clear karyotype/phenotype correlation has not yet been determined. In this study, we present the clinical and molecular description of a child with a de novo 6p25.1p24.3 microdeletion, characterized by array-CGH, associated with mild intellectual disability, facial dysmorphisms, hypopigmentation of the skin of the abdomen, heart defects, mild pontine hypoplasia and hypotonia. This deleted region contains 14 OMIM genes (NRN1, F13A1, RREB1, SSR1, RIOK1, DSP, BMP6, TXNDC5, BLOC1S5, EEF1E1, SLC35B3 and HULC). To the best of our knowledge until now only six cases have been reported presenting an interstitial microdeletion, but a unique case carries a deleted region containing the same genes of our patient. We compared clinical features and genetic data with that of the previously reported patient. We also analysed the gene content of the deleted region to investigate the possible role of specific genes in the clinical phenotype of our patient.
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratory of Human Genetics, IRCCS Giannina Gaslini, Largo G.Gaslini, 16147 Genoa, Italy.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Tassano E, Accogli A, Ronchetto P, Tortora D, Tavella E, Gimelli G, Mancardi M, Malacarne M, Coviello DA. 17q23.3 de novo microdeletion involving only TANC2 gene: A new case. Eur J Med Genet 2020; 63:104094. [PMID: 33160097 DOI: 10.1016/j.ejmg.2020.104094] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/25/2020] [Accepted: 10/31/2020] [Indexed: 11/25/2022]
Abstract
Neurodevelopmental disorders (NDDs) show a wide range of overlapping clinical features. Intellectual disability (ID), developmental delay (DD), autism spectrum disorder (ASD), attention-deficit hyperactivity disorder (ADHD), language and communication disorders with or without motor abnormalities and/or epilepsy have been reported associated to single or multiple genes but in many cases the genetic basis remains unknown. The increasingly use of array-CGH has significantly improved the yield of diagnosing genomic disorders and led to the identification of several novel microdeletion and microduplication syndromes. TANC2 encodes a synaptic scaffold protein interacting with multiple neuropsychiatric disorder-related postsynaptic density (PSD) proteins in dendrites. Here, we describe a new case of TANC2 gene disruption in a 17q23.3 de novo microdeletion identified by array-CGH. The patient presented craniofacial dysmorphic features, hypotonia, and severe cognitive and motor impairment. In conclusion, our data add a further line of evidence supporting the role of TANC2 in NDDs and will help further researches to elucidate the regulatory mechanism of synaptic function and plasticity related to TANC2 haploinsufficiency.
Collapse
Affiliation(s)
- E Tassano
- Laboratory of Human Genetics, IRCCS Giannina Gaslini, Genoa, Italy.
| | - A Accogli
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI) - University of Genoa, Genoa, Italy
| | - P Ronchetto
- Laboratory of Human Genetics, IRCCS Giannina Gaslini, Genoa, Italy
| | - D Tortora
- Neuroradiology Unit, IRCCS Giannina Gaslini, Genova, Italy
| | - E Tavella
- Laboratory of Human Genetics, IRCCS Giannina Gaslini, Genoa, Italy
| | - G Gimelli
- Formerly, Laboratory of Cytogenetics, IRCCS Giannina Gaslini, Genoa, Italy
| | - M Mancardi
- Child Neuropsychiatry Unit, IRCCS Giannina Gaslini, Genoa, Italy
| | - M Malacarne
- Laboratory of Human Genetics, IRCCS Giannina Gaslini, Genoa, Italy
| | - D A Coviello
- Laboratory of Human Genetics, IRCCS Giannina Gaslini, Genoa, Italy
| |
Collapse
|
9
|
Ujihira K, Kohmoto T, Gimelli G, Raval A, Jacobson K, Wolff M, Osaki S. The impact of increased pulmonary arterial pressure on outcomes after transcatheter aortic valve replacement. Catheter Cardiovasc Interv 2020; 96:E723-E734. [DOI: 10.1002/ccd.28862] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/27/2020] [Accepted: 03/15/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Kosuke Ujihira
- Division of Cardiothoracic surgery, Department of Surgery University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
| | - Takushi Kohmoto
- Division of Cardiothoracic surgery, Department of Surgery University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
| | - Giorgio Gimelli
- Division of Cardiovascular medicine, Department of Medicine University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
| | - Amish Raval
- Division of Cardiovascular medicine, Department of Medicine University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
| | - Kurt Jacobson
- Division of Cardiovascular medicine, Department of Medicine University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
| | - Matthew Wolff
- Division of Cardiovascular medicine, Department of Medicine University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
| | - Satoru Osaki
- Division of Cardiothoracic surgery, Department of Surgery University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
| |
Collapse
|
10
|
Tassano E, Uccella S, Giacomini T, Fiorio P, Tavella E, Malacarne M, Gimelli G, Coviello D, Ronchetto P. 1p31.1 microdeletion including only NEGR1 gene in two patients. Eur J Med Genet 2020; 63:103919. [PMID: 32209393 DOI: 10.1016/j.ejmg.2020.103919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 02/10/2020] [Accepted: 03/18/2020] [Indexed: 01/21/2023]
Abstract
Neuronal growth regulator 1 (NEGR1), a member of the immunoglobulin superfamily cell adhesion molecule subgroup IgLON, has been involved in neuronal growth and connectivity. Genetic variants, in or near the NEGR1 locus, have been associated with obesity and, more recently, with learning difficulties, intellectual disability, and psychiatric disorders. Here, we described the only second report of NEGR1 gene disruption in 1p31.1 microdeletion in two patients. Patient 1 is a 14-year-old female with neurological and psychiatric features present also in her family. Patient 2 is a 5-month-old infant showing global hypotonia as unique neurological features till now. This patient also carries 7p22.1 duplication, of paternal origin, that could be responsible for some malformations present in the child. We hypothesize a role of NEGR1 in producing the phenotype of our patients and compare them with other cases previously reported in the literature and DECIPHER database to better identify a possible genotype-phenotype correlation.
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratory of Cytogenetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Laboratorio di Genetica Umana, IRCCS Istituto Giannina Gaslini, Genoa, Italy.
| | - Sara Uccella
- Unit of Child Neuropsychiatry, IRCCS Istituto Giannina Gaslini, University of Genoa, Genoa, Italy
| | - Thea Giacomini
- Unit of Child Neuropsychiatry, IRCCS Istituto Giannina Gaslini, University of Genoa, Genoa, Italy
| | - Patrizia Fiorio
- Laboratory of Cytogenetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Laboratorio di Genetica Umana, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Elisa Tavella
- Laboratory of Cytogenetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Laboratorio di Genetica Umana, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Michela Malacarne
- Laboratorio di Genetica Umana, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Giorgio Gimelli
- Laboratory of Cytogenetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Laboratorio di Genetica Umana, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Domenico Coviello
- Laboratorio di Genetica Umana, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Patrizia Ronchetto
- Laboratory of Cytogenetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Laboratorio di Genetica Umana, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| |
Collapse
|
11
|
Tassano E, Ronchetto P, Calcagno A, Fiorio P, Gimelli G, Capra V, Scala M. 'Distal 16p12.2 microdeletion' in a patient with autosomal recessive deafness-22. J Genet 2019; 98:56. [PMID: 31204719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The 16p12.2 chromosome band contains three large segmental duplications: BP1, BP2 and BP3, providing a substrate for recombination and recurrent chromosomal rearrangements. The '16p12.2 microdeletion' is a recurrent deletion comprised between BP2 and BP3, associated with variable clinical findings. We identified a heterozygous 16p12.2 microdeletion spanning between BP1 and BP2 in a child evaluated for short stature and mild dyslexia. Unexpectedly, the mother carried the same deletion in the homozygous state and suffered from severe hearing loss. Detailed family history revealed consanguinity of the maternal grandparents. The 16p12.2 microdeletion is a rare condition and contains only three genes: METTL9, IGSF6 and OTOA of which the OTOA is considered responsible for DFNB22 hearing loss (MIM: 607039) under its homozygous condition. A number of OTOA mutations have been described, whereas very few cases of a 16p12.2 microdeletion similar to that observed in our family have been reported. In conclusion, we describe a rare 'distal 16p12.2microdeletion' widening the phenotypic spectrum associated with the recurrent 16p12.2 microdeletion and support the causative role of OTOA microdeletion in hearing impairment.
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, 16147 Genova, Italy.
| | | | | | | | | | | | | |
Collapse
|
12
|
Tassano E, Uccella S, Giacomini T, Severino M, Fiorio P, Gimelli G, Ronchetto P. Clinical and Molecular Characterization of Two Patients with CNTN6 Copy Number Variations. Cytogenet Genome Res 2018; 156:144-149. [PMID: 30508811 DOI: 10.1159/000494152] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2018] [Indexed: 12/15/2022] Open
Abstract
Submicroscopic chromosomal alterations usually involve different protein-coding genes and regulatory elements that are responsible for rare contiguous gene disorders, which complicate the understanding of genotype-phenotype correlations. Chromosome band 3p26.3 contains 3 genes encoding neuronal cell adhesion molecules: CHL1, CNTN6, and CNTN4. We describe 2 boys aged 8 years and 11 years mainly affected by intellectual disability and autism spectrum disorder, who harbor a paternally inherited 3p26.3 microdeletion and a 3p26.3 microduplication, respectively. Both anomalies involved only the CNTN6 gene, which encodes contactin 6, a member of the contactin family (MIM 607220). Contactins show pronounced brain expression and function. Interestingly, phenotypes in reciprocal microdeletions and microduplications of CNTN6 are very similar. In conclusion, our data, added to those reported in the literature, are particularly significant for understanding the pathogenic effect of single gene dosage alterations. As for other recurrent syndromes with variable phenotype, these findings are challenging in genetic counselling because of an evident variable penetrance.
Collapse
|
13
|
Tassano E, Uccella S, Giacomini T, Striano P, Severino M, Porta S, Gimelli G, Ronchetto P. Intragenic Microdeletion of ULK4 and Partial Microduplication of BRWD3 in Siblings with Neuropsychiatric Features and Obesity. Cytogenet Genome Res 2018; 156:14-21. [PMID: 30086552 DOI: 10.1159/000491871] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2018] [Indexed: 12/13/2022] Open
Abstract
ULK4 and BRWD3 deletions have been identified in patients with developmental/language delay and intellectual disability. Both genes play pivotal roles in brain development. In particular, ULK4 encodes serine/threonine kinases that are critical for the development and function of the nervous system, while BRWD3 plays a crucial role in ubiquitination, as part of the ubiquitin/proteasome system. We report on 2 brothers, aged 7.6 and 20 years, presenting with cognitive impairment, epilepsy, autistic features, hearing loss, and obesity. Array-CGH analysis demonstrated 2 rare CNVs in both siblings: a paternally inherited microdeletion of ∼145 kb at 3p22.1, disrupting the ULK4 gene, and a maternally inherited microduplication of ∼117 kb at Xq21.1 including only the BRWD3 gene. As already described for other recurrent syndromes with variable phenotype, these findings are challenging in genetic counseling because of an evident variable penetrance. We discuss the possible correlations between the clinical phenotype of our patients and the function of the genes involved in these microrearrangements.
Collapse
|
14
|
Tassano E, Uccella S, Giacomini T, Severino M, Siri L, Gherzi M, Celle ME, Porta S, Gimelli G, Ronchetto P. 3q29 microduplication syndrome: Description of two new cases and delineation of the minimal critical region. Eur J Med Genet 2018; 61:428-433. [PMID: 29501613 DOI: 10.1016/j.ejmg.2018.02.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 01/31/2018] [Accepted: 02/26/2018] [Indexed: 12/28/2022]
Abstract
Heterogeneous clinical and neuropsychological features, such as intellectual disability, developmental and language delay, hypotonia, and, to a lesser extent, microcephaly that is present in about the half of the reported patients, characterize the 3q29 microduplication syndrome with usually a milder phenotype compared with the corresponding 3q29 microdeletion syndrome. The duplications described so far range from 2.3 Mb to 1.6 Mb, spanning from TFRC to BDH1 genes. Here we report on two patients with overlapping interstitial duplications of the 3q29 region differing in size. Patient 1 harboured a common-seized 3q29 microduplication spanning ∼1.6 Mb, while patient 2 carried a very small 3q29 microduplication of 448.8 Kb encompassing only two genes, DLG1 and BDH1. Both patients presented clinical characteristics similar to those reported in the literature in 3q29 microduplication syndrome. Interestingly, heterotopic gray matter nodules were found along the right lateral ventricle on brain MRI in patient 1, thus expanding the neuroradiological phenotype in 3q29 microduplication syndrome, while patient 2 allowed us to define with more precision the smallest region of overlap (SRO). Gene content analysis of the duplicated region suggests that gain-of-dosage of DLG1 and BDH1 may be a good candidate for the main clinical features of this syndrome.
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratory of Cytogenetics, Istituto Giannina Gaslini, Genoa, Italy.
| | - Sara Uccella
- Unit of Child Neuropsychiatry, Istituto Giannina Gaslini, University of Genova, Genoa, Italy
| | - Thea Giacomini
- Unit of Child Neuropsychiatry, Istituto Giannina Gaslini, University of Genova, Genoa, Italy
| | | | - Laura Siri
- "La Nostra Famiglia" Association, Varazze (Sv) - Scientific Institute E. Medea, Lecco, Bosisio Parini, Italy
| | - Marcella Gherzi
- Unit of Child Neuropsychiatry, Istituto Giannina Gaslini, University of Genova, Genoa, Italy
| | - Maria Elena Celle
- Unit of Child Neuropsychiatry, Head Neck and Neuroscience Department, Istituto Giannina Gaslini, Genoa, Italy
| | - Simona Porta
- Laboratory of Cytogenetics, Istituto Giannina Gaslini, Genoa, Italy
| | - Giorgio Gimelli
- Laboratory of Cytogenetics, Istituto Giannina Gaslini, Genoa, Italy
| | | |
Collapse
|
15
|
Tassano E, Giacomini T, Severino M, Gamucci A, Fiorio P, Gimelli G, Ronchetto P. Characterization of the Phenotype Associated with Microduplication Reciprocal to NF1 Microdeletion Syndrome. Cytogenet Genome Res 2017; 152:22-28. [PMID: 28605748 DOI: 10.1159/000477292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2017] [Indexed: 11/19/2022] Open
Abstract
17q11.2 microduplication syndrome is a recently described relatively rare condition associated with a nonspecific phenotype. Intellectual disability, developmental delay, and dysmorphisms are the only clinical features common to a majority of cases. Seventeen patients have been reported so far. Here, we present another patient with 17q11.2 duplication and no signs of neurofibromatosis type 1, identified by array-CGH. We compared clinical features and genetic data with those of previously reported patients with 17q11.2 microduplications. We also analyzed the gene content of the duplicated region in order to investigate the possible role of specific genes in the clinical phenotype of our patient.
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratory of Cytogenetics, Giannina Gaslini Institute, Genoa, Italy
| | | | | | | | | | | | | |
Collapse
|
16
|
Tassano E, Severino M, Rosina S, Papa R, Tortora D, Gimelli G, Cuoco C, Picco P. Interstitial de novo 18q22.3q23 deletion: clinical, neuroradiological and molecular characterization of a new case and review of the literature. Mol Cytogenet 2016; 9:78. [PMID: 27766118 PMCID: PMC5057431 DOI: 10.1186/s13039-016-0285-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 09/22/2016] [Indexed: 11/25/2022] Open
Abstract
Background Deletions of the long arm of chromosome 18 cause a common autosomal syndrome clinically characterized by a protean clinical phenotype. Case presentation We report on a 16-month-old male infant affected by fever attacks apparently unrelated with any infectious or inflammatory symptoms, growth retardation, bilateral vertical talus, congenital aural atresia, dysmorphisms, mild psychomotor delay, and peculiar neuroradiological features. Array-CGH analysis revealed one of the smallest 18q22.3q23 interstitial deletions involving five genes: TSHZ1, ZNF516, ZNF236, MBP, and GALR1. Conclusions Herein we focus on previously unreported heralding symptoms and neuroradiological abnormalities which enlarge the spectrum of 18q deletion syndrome demonstrating that a small deletion can determine a complex phenotype.
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, L.go G.Gaslini 5, 16147 Genoa, Italy
| | | | | | | | | | - Giorgio Gimelli
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, L.go G.Gaslini 5, 16147 Genoa, Italy
| | - Cristina Cuoco
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, L.go G.Gaslini 5, 16147 Genoa, Italy
| | | |
Collapse
|
17
|
Joshi RS, Garg P, Zaitlen N, Lappalainen T, Watson CT, Azam N, Ho D, Li X, Antonarakis SE, Brunner HG, Buiting K, Cheung SW, Coffee B, Eggermann T, Francis D, Geraedts JP, Gimelli G, Jacobson SG, Le Caignec C, de Leeuw N, Liehr T, Mackay DJ, Montgomery SB, Pagnamenta AT, Papenhausen P, Robinson DO, Ruivenkamp C, Schwartz C, Steiner B, Stevenson DA, Surti U, Wassink T, Sharp AJ. DNA Methylation Profiling of Uniparental Disomy Subjects Provides a Map of Parental Epigenetic Bias in the Human Genome. Am J Hum Genet 2016; 99:555-566. [PMID: 27569549 DOI: 10.1016/j.ajhg.2016.06.032] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/30/2016] [Indexed: 02/07/2023] Open
Abstract
Genomic imprinting is a mechanism in which gene expression varies depending on parental origin. Imprinting occurs through differential epigenetic marks on the two parental alleles, with most imprinted loci marked by the presence of differentially methylated regions (DMRs). To identify sites of parental epigenetic bias, here we have profiled DNA methylation patterns in a cohort of 57 individuals with uniparental disomy (UPD) for 19 different chromosomes, defining imprinted DMRs as sites where the maternal and paternal methylation levels diverge significantly from the biparental mean. Using this approach we identified 77 DMRs, including nearly all those described in previous studies, in addition to 34 DMRs not previously reported. These include a DMR at TUBGCP5 within the recurrent 15q11.2 microdeletion region, suggesting potential parent-of-origin effects associated with this genomic disorder. We also observed a modest parental bias in DNA methylation levels at every CpG analyzed across ∼1.9 Mb of the 15q11-q13 Prader-Willi/Angelman syndrome region, demonstrating that the influence of imprinting is not limited to individual regulatory elements such as CpG islands, but can extend across entire chromosomal domains. Using RNA-seq data, we detected signatures consistent with imprinted expression associated with nine novel DMRs. Finally, using a population sample of 4,004 blood methylomes, we define patterns of epigenetic variation at DMRs, identifying rare individuals with global gain or loss of methylation across multiple imprinted loci. Our data provide a detailed map of parental epigenetic bias in the human genome, providing insights into potential parent-of-origin effects.
Collapse
Affiliation(s)
- Ricky S Joshi
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Paras Garg
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Noah Zaitlen
- Department of Medicine, UCSF MC2552, 1700 4th Street, Byers Hall Suite 503C, San Francisco, CA 94158, USA
| | - Tuuli Lappalainen
- New York Genome Center, 101 Avenue of the Americas, 7th Floor, New York, NY 10013, USA; Department of Systems Biology, Columbia University, New York, NY 10032, USA
| | - Corey T Watson
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Nidha Azam
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Daniel Ho
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Xin Li
- Departments of Pathology, Genetics and Computer Science, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Stylianos E Antonarakis
- Department of Genetic Medicine and Development, University of Geneva Medical School, 9th Floor, 1 rue Michel-Servet, 1211 Geneva, Switzerland
| | - Han G Brunner
- Department of Human Genetics, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, the Netherlands
| | - Karin Buiting
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Hufelandstrasse 55, 45122 Essen, Germany
| | - Sau Wai Cheung
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Bradford Coffee
- Emory Genetics Laboratory, Emory University, Atlanta, GA 30033, USA
| | - Thomas Eggermann
- Institute of Human Genetics, University Hospital, RWTH, 52074 Aachen, Germany
| | - David Francis
- Victorian Clinical Genetics Services, Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville, VIC 3052, Australia
| | - Joep P Geraedts
- Department of Genetics and Cell Biology, Research Institute GROW, Faculty of Health, Medicine and Life Sciences, Maastricht University, PO Box 5800, Maastricht AZ 6202, the Netherlands
| | - Giorgio Gimelli
- Laboratorio di Citogenetica, Istituto G. Gaslini, 16148 Genova, Italy
| | - Samuel G Jacobson
- Scheie Eye Institute, Department of Ophthalmology, Perelman School of Medicine, University of Pennsylvania, 51 N. 39th Street, Philadelphia, PA 19104, USA
| | - Cedric Le Caignec
- CHU Nantes, Service de Génétique Médicale, Institut de Biologie, 9 quai Moncousu, 44093 Nantes, France; INSERM, UMR 957, Nantes 44035, France; Université de Nantes, Nantes atlantique universités, Pathophysiology of Bone Resorption and Therapy of Primary Bone Tumours, Nantes 44035, France
| | - Nicole de Leeuw
- Department of Human Genetics, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, the Netherlands
| | - Thomas Liehr
- Jena University Hospital, Friedrich Schiller University, Institute of Human Genetics, Kollegiengasse 10, 07743 Jena, Germany
| | - Deborah J Mackay
- Wessex Regional Genetics Laboratory Salisbury District Hospital, Salisbury, Wiltshire SO2 8BJ, UK
| | - Stephen B Montgomery
- Departments of Pathology, Genetics and Computer Science, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Alistair T Pagnamenta
- National Institute for Health Research Biomedical Research Centre, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - Peter Papenhausen
- Division of Cytogenetics, LabCorp, Center for Molecular Biology and Pathology, Research Triangle Park, NC 27709, USA
| | - David O Robinson
- Wessex Regional Genetics Laboratory Salisbury District Hospital, Salisbury, Wiltshire SO2 8BJ, UK
| | - Claudia Ruivenkamp
- Department of Clinical Genetics, Leiden University Medical Center, 2300 RC Leiden, the Netherlands
| | - Charles Schwartz
- J.C. Self Research Institute, Greenwood Genetic Center, Greenwood, SC 29646, USA
| | - Bernhard Steiner
- Institute of Medical Genetics, University of Zurich, 8603 Schwerzenbach, Switzerland
| | - David A Stevenson
- Division of Medical Genetics, Lucile Salter Packard Children's Hospital, 300 Pasteur Drive, Boswell Building A097, Stanford, CA 94304, USA
| | - Urvashi Surti
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Thomas Wassink
- Department of Psychiatry, University of Iowa, Iowa City, IA 52242, USA
| | - Andrew J Sharp
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| |
Collapse
|
18
|
Fiorio P, Rosaia De Santis L, Cuoco C, Gimelli G, Gastaldi R, Bonatti F, Ravazzolo R, Bocciardi R. Hypogonadotropic hypogonadism in a trisomy X carrier: phenotype description and genotype correlation. Gynecol Endocrinol 2016; 32:14-7. [PMID: 26572316 DOI: 10.3109/09513590.2015.1106472] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We report on a 31-year old female who presented at genetic counseling for a small uterus, secondary amenorrhea and sterility. Gonadotropic hormone levels were low, suggesting a Hypogonadotropic Hypogonadism (HH) condition. Cytogenetic analysis demonstrated the presence of Trisomy X associated to an interstitial deletion of chromosome 4q13.2, resulting in the complete loss of a copy of the GNRHR gene. As GNRHR is known to be responsible for an autosomal recessive form of HH, we checked the status of the undeleted allele and we found the Q106R substitution. In conclusion, the results of our cytogenetic and molecular analyses have allowed us to clarify the etiology of the patient's condition.
Collapse
MESH Headings
- Adult
- Amenorrhea/genetics
- Amenorrhea/metabolism
- Amenorrhea/physiopathology
- Chromosomes, Human, Pair 4/genetics
- Chromosomes, Human, X/genetics
- Chromosomes, Human, X/metabolism
- Female
- Gene Deletion
- Genotype
- Gonadotropins/metabolism
- Humans
- Hypogonadism/genetics
- Hypogonadism/metabolism
- Hypogonadism/physiopathology
- Infertility, Female/genetics
- Infertility, Female/metabolism
- Infertility, Female/physiopathology
- Karyotype
- Phenotype
- Receptors, LHRH/genetics
- Sequence Analysis, DNA
- Sex Chromosome Aberrations
- Sex Chromosome Disorders of Sex Development/genetics
- Sex Chromosome Disorders of Sex Development/metabolism
- Sex Chromosome Disorders of Sex Development/physiopathology
- Trisomy/genetics
- Trisomy/physiopathology
- Uterus/abnormalities
Collapse
Affiliation(s)
- Patrizia Fiorio
- a UOS Laboratorio di Citogenetica, Istituto Giannina Gaslini , Genova , Italy
| | | | - Cristina Cuoco
- a UOS Laboratorio di Citogenetica, Istituto Giannina Gaslini , Genova , Italy
| | - Giorgio Gimelli
- a UOS Laboratorio di Citogenetica, Istituto Giannina Gaslini , Genova , Italy
| | - Roberto Gastaldi
- c UOC Clinica Pediatrica, Istituto Giannina Gaslini , Genova , Italy
| | - Fabrizia Bonatti
- b UOSD Genetica Medica, PO S. Andrea ASL5 Spezzino , La Spezia , Italy
| | - Roberto Ravazzolo
- d UOC Genetica Medica, Istituto Giannina Gaslini , Genova , Italy , and
- e DiNOGMI Università degli Studi di Genova and CEBR , Genova , Italy
| | - Renata Bocciardi
- d UOC Genetica Medica, Istituto Giannina Gaslini , Genova , Italy , and
- e DiNOGMI Università degli Studi di Genova and CEBR , Genova , Italy
| |
Collapse
|
19
|
Tassano E, Gimelli S, Divizia MT, Lerone M, Vaccari C, Puliti A, Gimelli G. Thrombocytopenia-absent radius (TAR) syndrome due to compound inheritance for a 1q21.1 microdeletion and a low-frequency noncoding RBM8A SNP: a new familial case. Mol Cytogenet 2015; 8:87. [PMID: 26550033 PMCID: PMC4635577 DOI: 10.1186/s13039-015-0188-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 10/27/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Thrombocytopenia-absent radius syndrome (TAR; MIM 274000) is a rare autosomal recessive disorder combining specific skeletal abnormalities with a reduced platelet count. TAR syndrome has been associated with the compound inheritance of an interstitial microdeletion in 1q21.1 and a low frequency noncoding RBM8A SNP. RESULTS Here, we report on a patient with scapulo-humeral hypoplasia, bilateral radio-ulnar agenesis with intact thumbs, bilateral proximal positioning of the first metacarpal, bilateral fifth finger clinodactyly, bilateral radial deviation of the hands, and thrombocytopenia. Molecular studies showed compound heterozygosity for the 1q21.1 microdeletion and the RBM8A rs139428292 variant in hemizygous state, inherited from the father and the mother, respectively. A second aborted fetus presented TAR features and 1q21.1 microdeletion. DISCUSSION The complex inheritance pattern resulted in reduced expression of Y14, the protein encoded by RBM8A, and a component of the core exon-junction complex (EJC) in platelets. Further studies are needed to explain how Y14 insufficiency and subsequent defects of the EJC could cause the skeletal, haematological and additional features of TAR syndrome. In this study, we discuss other factors that could influence the overall phenotype of patients affected by TAR syndrome. CONCLUSION In this study, we discuss other factors that could influence the overall phenotype of patients affected by TAR syndrome.
Collapse
Affiliation(s)
- Elisa Tassano
- />Laboratorio di Citogentica, Istituto Giannina Gaslini, L.go G.Gaslini 5, 16147 Genoa, Italy
| | - Stefania Gimelli
- />Service of Genetic Medicine, University Hospitals of Geneva, 1211 Geneva, Switzerland
| | | | - Margherita Lerone
- />U.O.C. Medical Genetics, Istituto Giannina Gaslini, 16147 Genoa, Italy
| | | | - Aldamaria Puliti
- />U.O.C. Medical Genetics, Istituto Giannina Gaslini, 16147 Genoa, Italy
- />DiNOGMI, University of Genoa, 16147 Genoa, Italy
| | - Giorgio Gimelli
- />Laboratorio di Citogentica, Istituto Giannina Gaslini, L.go G.Gaslini 5, 16147 Genoa, Italy
| |
Collapse
|
20
|
Tassano E, Biancheri R, Denegri L, Porta S, Novara F, Zuffardi O, Gimelli G, Cuoco C. Heterozygous deletion of CHL1 gene: detailed array-CGH and clinical characterization of a new case and review of the literature. Eur J Med Genet 2015; 57:626-9. [PMID: 25451713 DOI: 10.1016/j.ejmg.2014.09.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 09/22/2014] [Indexed: 11/28/2022]
Abstract
CHL1 gene maps at 3p26.3 and encodes a cell adhesion molecule of the immunoglobulin superfamily highly expressed in the brain. CHL1 regulates neuronal migration and neurite overgrowth in the developing brain, while in mature neurons it accumulates in the axonal membrane and regulates synapse function via the clathrin-dependent pathways. To our knowledge, to date only three familial cases presenting heterozygous deletion of chromosome 3 at band p26.3, including only the CHL1 gene, have been reported. All the patients presented cognitive impairment characterized by learning and language difficulties. Here, we describe a six-year-old boy in which array-CGH analysis disclosed a terminal 3p26.3 deletion. The deletion was transmitted from his normal mother and included only the CHL1 gene. Our patient presented microcephaly, short stature, mild mental retardation, learning and language delay, and strabismus. In our study we compare the phenotypic and molecular cytogenetic features of CHL1 gene deletion cases. Verbal function developmental delay seems to be a common key finding. The concomitance of the genetic and phenotypic alterations could be a good evidence of a new emerging syndrome associated with the deletion of CHL1 gene alone, although the identification of new cases is required.
Collapse
|
21
|
Tassano E, Gamucci A, Celle ME, Ronchetto P, Cuoco C, Gimelli G. Clinical and Molecular Cytogenetic Characterization of a de novo Interstitial 1p31.1p31.3 Deletion in a Boy with Moderate Intellectual Disability and Severe Language Impairment. Cytogenet Genome Res 2015; 146:39-43. [DOI: 10.1159/000431391] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2015] [Indexed: 11/19/2022] Open
Abstract
Interstitial 1p deletions are rare events. Very few cases of 1p31.1p31.3 deletions characterized by variable phenotypes have been reported. No clear genotype-phenotype correlation has been determined yet. We present a child with a de novo interstitial 1p31.1p31.3 deletion, identified by array CGH, associated with intellectual disability and severe language impairment. The deleted region contains 20 OMIM genes, but we focused on GADD45A (MIM 126335; growth arrest- and DNA damage-inducible gene), LRRC7 (MIM 614453; leucine-rich repeat-containing protein 7), and NEGR1 (MIM 613173; neuronal growth regulator 1). We discuss whether these genes play a role in determining the phenotype of our patient in order to investigate the possibility of a genotype-phenotype correlation.
Collapse
|
22
|
Tassano E, Mirabelli-Badenier M, Veneselli E, Puliti A, Lerone M, Vaccari CM, Morana G, Porta S, Gimelli G, Cuoco C. Clinical and molecular characterization of a patient with interstitial 6q21q22.1 deletion. Mol Cytogenet 2015; 8:31. [PMID: 26052347 PMCID: PMC4457201 DOI: 10.1186/s13039-015-0134-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 02/27/2015] [Indexed: 11/13/2022] Open
Abstract
Background Interstitial 6q deletions, involving the 6q15q25 chromosomal region, are rare events characterized by variable phenotypes and no clear karyotype/phenotype correlation has been determined yet. Results We present a child with a 6q21q22.1 deletion, characterized by array-CGH, associated with developmental delay, intellectual disability, microcephaly, facial dysmorphisms, skeletal, muscle, and brain anomalies. Discussion In our patient, the 6q21q22.1 deleted region contains ten genes (TRAF3IP2, FYN, WISP3, TUBE1, LAMA4, MARCKS, HDAC2, HS3ST5, FRK, COL10A1) and two desert gene regions. We discuss here if these genes had some role in determining the phenotype of our patient in order to establish a possible karyotype/phenotype correlation. Electronic supplementary material The online version of this article (doi:10.1186/s13039-015-0134-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, L.goG.Gaslini 5, 16147 Genova, Italy
| | - Marisol Mirabelli-Badenier
- Child Neuropsychiatry Unit, Department of Neurosciences and Rehabilitation, Istituto Giannina Gaslini, Genoa, Italy
| | - Edvige Veneselli
- Child Neuropsychiatry Unit, Department of Neurosciences and Rehabilitation, Istituto Giannina Gaslini, Genoa, Italy
| | - Aldamaria Puliti
- Department of Neurosciences Rehabilitation Ophthalmology Genetics Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy ; U.O.C. Genetica Medica, Istituto Giannina Gaslini, Genova, Italy
| | | | - Carlotta Maria Vaccari
- Department of Neurosciences Rehabilitation Ophthalmology Genetics Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Giovanni Morana
- Pediatric Neuroradiology Unit, Istituto Giannina Gaslini, Genoa, Italy
| | - Simona Porta
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, L.goG.Gaslini 5, 16147 Genova, Italy
| | - Giorgio Gimelli
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, L.goG.Gaslini 5, 16147 Genova, Italy
| | - Cristina Cuoco
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, L.goG.Gaslini 5, 16147 Genova, Italy
| |
Collapse
|
23
|
Severino M, Accogli A, Gimelli G, Rossi A, Kotzeva S, Di Rocco M, Ronchetto P, Cuoco C, Tassano E. Clinico-radiological and molecular characterization of a child with ring chromosome 2 presenting growth failure, microcephaly, kidney and brain malformations. Mol Cytogenet 2015; 8:17. [PMID: 25774222 PMCID: PMC4359793 DOI: 10.1186/s13039-015-0121-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 02/17/2015] [Indexed: 11/25/2022] Open
Abstract
Background Ring chromosome 2 is a rare constitutional abnormality that generally occurs de novo. About 14 cases have been described to date, but the vast majority of papers report exclusively conventional cytogenetic investigations and only two have been characterized by array-CGH. Results Here we describe the clinical, neuroradiological, and molecular features of a 5-year-old boy harbouring a ring chromosome 2 presenting with severe growth failure, facial and bone dysmorphisms, microcephaly, and renal malformation. Brain MR with diffusion tensor imaging revealed simplified cortical gyration, pontine hypoplasia, and abnormally thick posterior corpus callosum, suggesting an underlying axonal guidance defect. Cytogenetic investigations showed a karyotype with a ring chromosome 2 and FISH analysis with subtelomeric probes revealed the absence of signals on both arms. These results were confirmed by array-CGH showing terminal deletions on 2p25.3 (~439 kb) and 2q37.3 (~3.4 Mb). Conclusions Our report describes a new patient with a ring chromosome 2 completely characterised by array-CGH providing additional information useful not only to study genotype-phenotype correlation but also to validate the role of already reported candidate genes and to suggest novel ones which could improve our understanding of the clinical features associated with ring chromosome 2. Electronic supplementary material The online version of this article (doi:10.1186/s13039-015-0121-z) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
| | - Andrea Accogli
- Pediatric Pulmonology and Allergy Unit, Istituto Giannina Gaslini, Genoa, Italy
| | - Giorgio Gimelli
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, Genoa, Italy
| | - Andrea Rossi
- Neuroradiology Unit, Istituto Giannina Gaslini, Genoa, Italy
| | | | - Maja Di Rocco
- Pediatria II, Istituto Giannina Gaslini, Genoa, Italy
| | | | - Cristina Cuoco
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, Genoa, Italy
| | - Elisa Tassano
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, Genoa, Italy
| |
Collapse
|
24
|
Tassano E, De Santis LR, Corona MF, Parmigiani S, Zanetti D, Porta S, Gimelli G, Cuoco C. Concomitant deletion of chromosome 16p13.11 and triplication of chromosome 19p13.3 in a child with developmental disorders, intellectual disability, and epilepsy. Mol Cytogenet 2015; 8:9. [PMID: 25705258 PMCID: PMC4335438 DOI: 10.1186/s13039-015-0115-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 01/22/2015] [Indexed: 04/09/2024] Open
Abstract
Background Rare copy number variations (CNVs) are today recognized as an important cause of various neurodevelopmental disorders, including mental retardation and epilepsy. In some cases, a second CNV may contribute to a more severe clinical presentation. Results Here we describe a patient with epilepsy, mental retardation, developmental disorders, and dysmorphic features, who inherited a deletion of 16p13.11 and a triplication of 19p13.3 from his father and mother, respectively. The mother presented mild mental retardation and language delay too. Conclusions We discuss the phenotypic consequences of the two CNVs and suggest that their synergistic effect is likely responsible for the complicated clinical features observed in our patient.
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratorio di Citogenetica, Istituto G.Gaslini, L.go G.Gaslini 5, 16147 Genoa, Italy
| | | | | | | | - Dalila Zanetti
- SSD Genetica Medica, Ospedale S. Andrea, La Spezia, Italy
| | - Simona Porta
- Laboratorio di Citogenetica, Istituto G.Gaslini, L.go G.Gaslini 5, 16147 Genoa, Italy
| | - Giorgio Gimelli
- Laboratorio di Citogenetica, Istituto G.Gaslini, L.go G.Gaslini 5, 16147 Genoa, Italy
| | - Cristina Cuoco
- Laboratorio di Citogenetica, Istituto G.Gaslini, L.go G.Gaslini 5, 16147 Genoa, Italy
| |
Collapse
|
25
|
Tassano E, Jagannathan V, Drögemüller C, Leoni M, Hytönen MK, Severino M, Gimelli S, Cuoco C, Di Rocco M, Sanio K, Groves AK, Leeb T, Gimelli G. Congenital aural atresia associated with agenesis of internal carotid artery in a girl with a FOXI3 deletion. Am J Med Genet A 2015; 167A:537-44. [PMID: 25655429 DOI: 10.1002/ajmg.a.36895] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 10/31/2014] [Indexed: 11/11/2022]
Abstract
We report on the molecular characterization of a microdeletion of approximately 2.5 Mb at 2p11.2 in a female baby with left congenital aural atresia, microtia, and ipsilateral internal carotid artery agenesis. The deletion was characterized by fluorescence in situ hybridization, array comparative genomic hybridization, and whole genome re-sequencing. Among the genes present in the deleted region, we focused our attention on the FOXI3 gene. Foxi3 is a member of the Foxi class of Forkhead transcription factors. In mouse, chicken and zebrafish Foxi3 homologues are expressed in the ectoderm and endoderm giving rise to elements of the jaw as well as external, middle and inner ear. Homozygous Foxi3-/- mice have recently been generated and show a complete absence of the inner, middle, and external ears as well as severe defects in the jaw and palate. Recently, a 7-bp duplication within exon 1 of FOXI3 that produces a frameshift and a premature stop codon was found in hairless dogs. Mild malformations of the outer auditory canal (closed ear canal) and ear lobe have also been noted in a fraction of FOXI3 heterozygote Peruvian hairless dogs. Based on the phenotypes of Foxi3 mutant animals, we propose that FOXI3 may be responsible for the phenotypic features of our patient. Further characterization of the genomic region and the analysis of similar patients may help to demonstrate this point.
Collapse
|
26
|
Tassano E, Alpigiani MG, Calcagno A, Salvati P, De Miglio L, Fiorio P, Cuoco C, Gimelli G. Clinical and molecular delineation of a 16p13.2p13.13 microduplication. Eur J Med Genet 2015; 58:194-8. [PMID: 25596524 DOI: 10.1016/j.ejmg.2014.12.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 12/23/2014] [Indexed: 12/14/2022]
Abstract
The 16p13.3p13.1 region has been reported as a "critical" hotspot region for recurrent microdeletions/duplications, which may contribute to epilepsy, learning difficulties and facial dysmorphisms. Cytogenetic and array-CGH analyses were performed because of the clinical characteristics of the patient. The girl showed de novo 16p13.3p13.13 duplication spanning a region of ∼5.3 Mb. She presented brain anomalies, intellectual disability, epilepsy, facial and vertebral dysmorphisms. To our knowledge, this is the first reported case of 16p13.3p13.13 duplication; only three patients with an overlapping deletion in 16p13.2p13.13 were previously described. The duplicated region contains 21 OMIM genes and, six of them (RBFOX1, TMEM114, ABAT, PMM2, GRIN2A and, LITAF) were found to be associated with known diseases. Although no duplication of these genes has been described in the literature, we discuss here if they had some role in determining phenotype of our patient.
Collapse
Affiliation(s)
- E Tassano
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, Genova, Italy.
| | - M G Alpigiani
- Clinica Pediatrica, Istituto Giannina Gaslini, Genova, Italy
| | - A Calcagno
- Clinica Pediatrica, Istituto Giannina Gaslini, Genova, Italy
| | - P Salvati
- Clinica Pediatrica, Istituto Giannina Gaslini, Genova, Italy
| | - L De Miglio
- Clinica Pediatrica, Istituto Giannina Gaslini, Genova, Italy
| | - P Fiorio
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, Genova, Italy
| | - C Cuoco
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, Genova, Italy
| | - G Gimelli
- Laboratorio di Citogenetica, Istituto Giannina Gaslini, Genova, Italy
| |
Collapse
|
27
|
Gimelli S, Capra V, Di Rocco M, Leoni M, Mirabelli-Badenier M, Schiaffino MC, Fiorio P, Cuoco C, Gimelli G, Tassano E. Interstitial 7q31.1 copy number variations disrupting IMMP2L gene are associated with a wide spectrum of neurodevelopmental disorders. Mol Cytogenet 2014; 7:54. [PMID: 25478008 PMCID: PMC4255718 DOI: 10.1186/s13039-014-0054-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 07/25/2014] [Indexed: 01/14/2023] Open
Abstract
Background Since the introduction of the array-CGH technique in the diagnostic workup of mental retardation, new recurrent copy number variations and novel microdeletion/microduplication syndromes were identified. These findings suggest that some genomic disorders have high penetrance but a wide range of phenotypic severity. Results We present the clinical and molecular description of four unrelated patients affected by neurodevelopmental disorders and overlapping 7q31.1 microdeletion/microduplication, identified by array-CGH and involving only part of the IMMP2L gene. Conclusion IMMP2L encodes an inner mitochondrial membrane protease-like protein, which is required for processing of cytochromes inside mitochondria. Numerous studies reported that this gene is implicated in behavioural disorders such as autistic spectrum disorders, attention-deficit hyperactivity disorders, and Gilles de la Tourette syndrome. We discuss the functions of the gene suggesting that IMMP2L may act as risk factor for neurological disease.
Collapse
Affiliation(s)
- Stefania Gimelli
- Service of Genetic Medicine, University Hospitals of Geneva, Geneva, Switzerland
| | - Valeria Capra
- U.O. Neurochirurgia, Istituto G.Gaslini, Genoa, Italy
| | | | | | - Marisol Mirabelli-Badenier
- DINOMGI Dipartimento-Università di Genova; U.O. Neuropsichiatria infantile, Istituto G. Gaslini, Genoa, Italy
| | | | - Patrizia Fiorio
- Laboratorio di Citogenetica, Istituto G. Gaslini, G.Gaslini 5, Genoa, 16147, Italy
| | - Cristina Cuoco
- Laboratorio di Citogenetica, Istituto G. Gaslini, G.Gaslini 5, Genoa, 16147, Italy
| | - Giorgio Gimelli
- Laboratorio di Citogenetica, Istituto G. Gaslini, G.Gaslini 5, Genoa, 16147, Italy
| | - Elisa Tassano
- Laboratorio di Citogenetica, Istituto G. Gaslini, G.Gaslini 5, Genoa, 16147, Italy
| |
Collapse
|
28
|
Tassano E, Accogli A, Panigada S, Ronchetto P, Cuoco C, Gimelli G. Phenotypic and genetic characterization of a patient with a de novo interstitial 14q24.1q24.3 deletion. Mol Cytogenet 2014; 7:49. [PMID: 25076984 PMCID: PMC4115490 DOI: 10.1186/1755-8166-7-49] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 06/30/2014] [Indexed: 11/23/2022] Open
Abstract
Background Interstitial deletions of chromosome bands 14q24.1q24.3 are very rare with only three reported cases. Results We describe a 7-year-old boy with a 5.345 Mb de novo interstitial deletion at 14q24.1q24.3 band detected by array-CGH who had a complex phenotype characterized by seizures, congenital heart defects, dysmorphisms, psychomotor delay, and bronchopulmonary, skeletal, and brain anomalies. Conclusion The deleted region contains numerous genes, but we focused our attention on three of them (C14orf169, NUMB, and PSEN1), which could account, at least partially, for the phenotype of the boy. We therefore discuss the involvement of these genes and the observed phenotype compared to that of previously described patients.
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratorio di Citogenetica, Istituto G.Gaslini, L.go G.Gaslini 5, Genoa 16147, Italy
| | - Andrea Accogli
- Pediatric Pulmonology and Allergy Unit, Istituto Giannina Gaslini, Genoa, Italy
| | - Serena Panigada
- Pediatric Pulmonology and Allergy Unit, Istituto Giannina Gaslini, Genoa, Italy
| | - Patrizia Ronchetto
- Laboratorio di Citogenetica, Istituto G.Gaslini, L.go G.Gaslini 5, Genoa 16147, Italy
| | - Cristina Cuoco
- Laboratorio di Citogenetica, Istituto G.Gaslini, L.go G.Gaslini 5, Genoa 16147, Italy
| | - Giorgio Gimelli
- Laboratorio di Citogenetica, Istituto G.Gaslini, L.go G.Gaslini 5, Genoa 16147, Italy
| |
Collapse
|
29
|
Capra V, Severino M, Rossi A, Nozza P, Doneda C, Perri K, Pavanello M, Fiorio P, Gimelli G, Tassano E, Di Battista E. Pituitary deficiency and congenital infiltrating lipomatosis of the face in a girl with deletion of chromosome 1q24.3q31.1. Am J Med Genet A 2013; 164A:495-9. [DOI: 10.1002/ajmg.a.36283] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 09/14/2013] [Indexed: 01/19/2023]
Affiliation(s)
- V. Capra
- U.O. Neurochirurgia; Istituto G. Gaslini; Genova Italy
| | - M. Severino
- Dipartimento di Neuroradiologia; Istituto G. Gaslini; Genova Italy
| | - A. Rossi
- Dipartimento di Neuroradiologia; Istituto G. Gaslini; Genova Italy
| | - P. Nozza
- U.O. Anatomia Patologica; Istituto G. Gaslini; Genova Italy
| | - C. Doneda
- Dipartimento di Radiologia e Neuroradiologia; Ospedale dei bambini V. Buzzi; Milano Italy
| | - K. Perri
- Clinica Pediatrica; Istituto G. Gaslini; Università di Genova; Genova Italy
| | - M. Pavanello
- U.O. Neurochirurgia; Istituto G. Gaslini; Genova Italy
| | - P. Fiorio
- Laboratorio di Citogenetica; Istituto G. Gaslini; Genova Italy
| | - G. Gimelli
- Laboratorio di Citogenetica; Istituto G. Gaslini; Genova Italy
| | - E. Tassano
- Laboratorio di Citogenetica; Istituto G. Gaslini; Genova Italy
| | - E. Di Battista
- Clinica Pediatrica; Istituto G. Gaslini; Università di Genova; Genova Italy
| |
Collapse
|
30
|
Celle ME, Cuoco C, Porta S, Gimelli G, Tassano E. Interstitial 2q24.3 deletion including SCN2A and SCN3A genes in a patient with autistic features, psychomotor delay, microcephaly and no history of seizures. Gene 2013; 532:294-6. [DOI: 10.1016/j.gene.2013.09.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 09/16/2013] [Accepted: 09/19/2013] [Indexed: 10/26/2022]
|
31
|
Agarwal G, Vats HS, Raval AN, Yevzlin AS, Chan MR, Gimelli G. Chronic total occlusion and successful drug-eluting stent placement in Takayasu arteritis-induced renal artery stenosis. Clin Med Res 2013; 11:233-6. [PMID: 23656802 PMCID: PMC3917996 DOI: 10.3121/cmr.2013.1132] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Takayasu arteritis-induced renal artery stenosis (TARAS) is a condition rarely described in the literature. Although percutaneous transluminal angioplasty and stenting has been well-described in the treatment of atherosclerotic renal artery stenosis, its role has not been established in non-atherosclerotic TARAS. We report a case of a female, age 17 years, with Takayasu arteritis who presented to the hospital with seizures and hypertensive crisis. A renal angiogram showed chronic total occlusion (CTO) of the left renal artery. Renal angioplasty and stenting was successfully performed after multiple attempts to deliver a wire distal to the CTO. After sequential balloon predilation, a drug-eluting stent was deployed, resulting in full reperfusion of the kidney. The patient's blood pressure improved dramatically, and patency of the stent was demonstrated with magnetic resonance angiography over 9 months after the procedure.
Collapse
Affiliation(s)
- Guarav Agarwal
- Corresponding Author: Hemender S. Vats, Clinical Associate Professor, University of Wisconsin, School of Medicine and Public Health, Rm 130, Mc9580 Wisconsin Dialysis, Inc, 3034 Fish Hatchery Rd, Madison, WI 53713.
| | | | | | | | | | | |
Collapse
|
32
|
Gimelli S, Leoni M, Di Rocco M, Caridi G, Porta S, Cuoco C, Gimelli G, Tassano E. A rare 3q13.31 microdeletion including GAP43 and LSAMP genes. Mol Cytogenet 2013; 6:52. [PMID: 24279697 PMCID: PMC3906914 DOI: 10.1186/1755-8166-6-52] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 10/28/2013] [Indexed: 11/26/2022] Open
Abstract
Background Interstitial deletions affecting the proximal long arm of chromosome 3 have been rarely reported in the literature. The deleted segments vary in localization and size with different breakpoints making genotype-phenotype correlation very difficult. Until now, a girl with a 1.9-Mb interstitial deletion of 3q13.2q13.31 and 14 novel patients with deletions in 3q11q23 have been reported. Results Here we report on a 7-year-old girl with neuropsychiatric disorders and renal, vascular and skeletal anomalies. Array-CGH analysis revealed a small rare inherited 3q13.31 deletion containing only two genes, GAP43 and LSAMP. The mutation analysis of the two genes was negative on the other non-deleted chromosome. GAP43 is considered a crucial component for an effective regenerative response in the nervous system and its mRNA is localized exclusively to nerve tissue where the protein is linked to the synaptosomal membrane. LSAMP is a 64- to 68-kD neuronal surface glycoprotein found in cortical and subcortical regions of the limbic system that acts as an adhesion molecule and guides the development of specific patterns of neuronal connection. The deleted region is adjacent to a “desert gene” region extending 2.099 Mb. Conclusions We discuss the effects of GAP43 and LSAMP haploinsufficiency, proposing that their deletion may be responsible for the main phenotype. Further cases with similar microdeletion are expected to be diagnosed and will help to better characterize the clinical spectrum of phenotypes associated with 3q13.31 microdeletion.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Elisa Tassano
- Laboratorio di Citogenetica, Istituto G, Gaslini, Genoa, Italy.
| |
Collapse
|
33
|
Weemaes CMR, van Tol MJD, Wang J, van Ostaijen-ten Dam MM, van Eggermond MCJA, Thijssen PE, Aytekin C, Brunetti-Pierri N, van der Burg M, Graham Davies E, Ferster A, Furthner D, Gimelli G, Gennery A, Kloeckener-Gruissem B, Meyn S, Powell C, Reisli I, Schuetz C, Schulz A, Shugar A, van den Elsen PJ, van der Maarel SM. Heterogeneous clinical presentation in ICF syndrome: correlation with underlying gene defects. Eur J Hum Genet 2013; 21:1219-25. [PMID: 23486536 PMCID: PMC3798845 DOI: 10.1038/ejhg.2013.40] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 01/30/2013] [Accepted: 02/06/2013] [Indexed: 11/09/2022] Open
Abstract
Immunodeficiency with centromeric instability and facial anomalies (ICF) syndrome is a primary immunodeficiency, predominantly characterized by agammaglobulinemia or hypoimmunoglobulinemia, centromere instability and facial anomalies. Mutations in two genes have been discovered to cause ICF syndrome: DNMT3B and ZBTB24. To characterize the clinical features of this syndrome, as well as genotype-phenotype correlations, we compared clinical and genetic data of 44 ICF patients. Of them, 23 had mutations in DNMT3B (ICF1), 13 patients had mutations in ZBTB24 (ICF2), whereas for 8 patients, the gene defect has not yet been identified (ICFX). While at first sight these patients share the same immunological, morphological and epigenetic hallmarks of the disease, systematic evaluation of all reported informative cases shows that: (1) the humoral immunodeficiency is generally more pronounced in ICF1 patients, (2) B- and T-cell compartments are both involved in ICF1 and ICF2, (3) ICF2 patients have a significantly higher incidence of intellectual disability and (4) congenital malformations can be observed in some ICF1 and ICF2 cases. It is expected that these observations on prevalence and clinical presentation will facilitate mutation-screening strategies and help in diagnostic counseling.
Collapse
Affiliation(s)
- Corry MR Weemaes
- Department of Pediatric Infectious Diseases and Immunology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Maarten JD van Tol
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - Jun Wang
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Marja CJA van Eggermond
- Department of Immunohaematology and Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands
| | - Peter E Thijssen
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Caner Aytekin
- Department of Pediatric Immunology, Dr Sami Ulus Maternity and Children's Research and Educational Hospital, Ankara, Turkey
| | | | - Mirjam van der Burg
- Department of Immunology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - E Graham Davies
- Centre for Immunodeficiency, Great Ormond Street Hospital and Institute of Child Health, London, UK
| | - Alina Ferster
- Department of Pediatrics, Haemato-Oncology Unit, Hôpital Universitaire des Enfants Reine Fabiola, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Giorgio Gimelli
- Laboratorio di Citogenetica, Instituto G Gaslini, Genova, Italy
| | - Andy Gennery
- Department of Paediatric Immunology, Newcastle Upon Tyne Hospital, NHS Foundation Trust, United Kingdom and Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
| | - Barbara Kloeckener-Gruissem
- Institute of Medical Molecular Genetics, University of Zurich, Zurich, Switzerland
- Department of Biology, ETHZ, Zurich, Switzerland
| | - Stephan Meyn
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Cynthia Powell
- Department of Pediatrics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ismail Reisli
- Department of Pediatric Immunology and Allergy, Necmettin Erbakan University, Meram Medical Faculty, Konya, Turkey
| | - Catharina Schuetz
- Department of Pediatrics and Adolescent Medicine, University Hospital Ulm, Ulm, Germany
| | - Ansgar Schulz
- Department of Pediatrics and Adolescent Medicine, University Hospital Ulm, Ulm, Germany
| | - Andrea Shugar
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Peter J van den Elsen
- Department of Immunohaematology and Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands
- Department of Pathology, VU University Medical Center, Amsterdam, The Netherlands
| | | |
Collapse
|
34
|
Tassano E, Buttgereit J, Bader M, Lerone M, Divizia MT, Bocciardi R, Napoli F, Pala G, Sloan-Béna F, Gimelli S, Gimelli G. Genotype-Phenotype Correlation of 2q37 Deletions Including NPPC Gene Associated with Skeletal Malformations. PLoS One 2013; 8:e66048. [PMID: 23805197 PMCID: PMC3689787 DOI: 10.1371/journal.pone.0066048] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 04/30/2013] [Indexed: 01/10/2023] Open
Abstract
Coordinated bone growth is controlled by numerous mechanisms which are only partially understood because of the involvement of many hormones and local regulators. The C-type Natriuretic Peptide (CNP), encoded by NPPC gene located on chromosome 2q37.1, is a molecule that regulates endochondral ossification of the cartilaginous growth plate and influences longitudinal bone growth. Two independent studies have described three patients with a Marfan-like phenotype presenting a de novo balanced translocation involving the same chromosomal region 2q37.1 and overexpression of NPPC. We report on two partially overlapping interstitial 2q37 deletions identified by array CGH. The two patients showed opposite phenotypes characterized by short stature and skeletal overgrowth, respectively. The patient with short stature presented a 2q37 deletion causing the loss of one copy of the NPPC gene and the truncation of the DIS3L2 gene with normal CNP plasma concentration. The deletion identified in the patient with a Marfan-like phenotype interrupted the DIS3L2 gene without involving the NPPC gene. In addition, a strongly elevated CNP plasma concentration was found in this patient. A possible role of NPPC as causative of the two opposite phenotypes is discussed in this study.
Collapse
Affiliation(s)
- Elisa Tassano
- Laboratorio di Citogenetica, Istituto G. Gaslini, Genova, Italy
- * E-mail:
| | - Jens Buttgereit
- Experimental and Clinical Research Center (ECRC), a joint institution of the Max Delbrück Center for Molecular Medicine (MDC) and the Charité Medical Faculty, Berlin, Germany
- Max Delbrück Center for Molecular Medicine (MDC), Campus Berlin-Buch, Berlin, Germany
| | - Michael Bader
- Max Delbrück Center for Molecular Medicine (MDC), Campus Berlin-Buch, Berlin, Germany
| | - Margherita Lerone
- Laboratorio di Genetica Molecolare, Istituto G. Gaslini, Genova, Italy
| | | | - Renata Bocciardi
- Dipartimento di Neuroscienze, Riabilitazione, Oftalmologia, Genetica e Scienze Materno-Infantili, (DiNOGMI), and Laboratorio di Genetica Molecolare, Istituto G. Gaslini, Genova, Italy
| | - Flavia Napoli
- Dipartimento di Pediatria, Istituto G. Gaslini, Università di Genova, Genova, Italy
| | - Giovanna Pala
- Dipartimento di Pediatria, Istituto G. Gaslini, Università di Genova, Genova, Italy
| | | | - Stefania Gimelli
- Service of Genetic Medicine, University Hospitals of Geneva, Geneva, Switzerland
| | - Giorgio Gimelli
- Laboratorio di Citogenetica, Istituto G. Gaslini, Genova, Italy
| |
Collapse
|
35
|
Di Rocco A, Loggini A, Di Rocco M, Di Rocco P, Rossi RP, Gimelli G, Bazil C. Paradoxical worsening of seizure activity with pregabalin in an adult with isodicentric 15 (IDIC-15) syndrome involving duplications of the GABRB3, GABRA5 and GABRG3 genes. BMC Neurol 2013; 13:43. [PMID: 23663378 PMCID: PMC3660219 DOI: 10.1186/1471-2377-13-43] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Accepted: 04/25/2013] [Indexed: 11/10/2022] Open
Abstract
Background Isodicentric 15 syndrome (IDIC-15) is due to partial duplications of chromosome 15 that may includes the q11–13 region that includes genes encoding the α5 (GABRA5) and β3 - γ3 (GABRB3) receptor subunits. The disease causes intellectual and physical developmental delay, seizures, intellectual disability and behavioral disorders that may be related to abnormal GABA receptor function and morphology. Seizures are often severe and may be refractory to treatment. There are however no specific guidelines for the treatment of the seizures and it is unknown whether drugs that affect the GABAergic system have a different effect in IDIC-15 seizures. Case presentation We report the case of an adult individual with IDIC-15 whose complex-partial seizures worsened dramatically after the introduction of pregabalin, with increased seizure frequency, frequent generalization, and appearance of new seizure pattern. Her cognitive function and verbal skills also worsened during treatment with pregabalin. Her seizures and cognitive skills quickly improved after pregabalin was discontinued and treatment with lacosamide started. Discussion As her genetic testing confirmed that her region of duplication included GABA receptor encoding genes, it is plausible that the worsening of seizures were due to induction of an abnormal GABAergic response to pregabalin. Conclusion As her genetic testing confirmed that her region of duplication included GABA receptor encoding genes, it is plausible that the worsening of seizures were due to induction of an abnormal GABAergic response to pregabalin.This case may help define proper therapeutic strategies for the treatment of IDIC-15 associated seizures.
Collapse
|
36
|
Gimelli S, Cuoco C, Ronchetto P, Gimelli G, Tassano E. Interstitial deletion 14q31.1q31.3 transmitted from a mother to her daughter, both with features of hemifacial microsomia. J Appl Genet 2013; 54:361-5. [PMID: 23645319 DOI: 10.1007/s13353-013-0150-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 04/08/2013] [Accepted: 04/16/2013] [Indexed: 12/13/2022]
Affiliation(s)
- S Gimelli
- Service of Genetic Medicine, University Hospitals of Geneva, Geneva, Switzerland
| | | | | | | | | |
Collapse
|
37
|
Occella C, Bleidl D, Nozza P, Mascelli S, Raso A, Gimelli G, Gimelli S, Tassano E. Identification of an interstitial 18p11.32-p11.31 duplication including the EMILIN2 gene in a family with porokeratosis of Mibelli. PLoS One 2013; 8:e61311. [PMID: 23593459 PMCID: PMC3622678 DOI: 10.1371/journal.pone.0061311] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 03/07/2013] [Indexed: 12/31/2022] Open
Abstract
Porokeratosis is a rare disease of epidermal keratinization characterized by the histopathological feature of the cornoid lamella, a column of tightly fitted parakeratocytic cells, whose etiology is still unclear. Porokeratosis of Mibelli is a subtype of porokeratosis presenting a single plaque or a small number of plaques of variable size located unilaterally on limbs. It frequently appears in childhood and occurs with a higher incidence in males. Cytogenetic analyses were performed in all members of the family on lesioned and uninvolved skin. An array-CGH analysis was also performed utilizing the Human Genome CGH Microarray Kit G3 400 with 5.3 KB overall median probe spacing. Gene expression was performed on skin fibroblasts. In this study, we describe a Caucasian healthy 4-year-old child and his father showing features of porokeratosis of Mibelli. Array-CGH analysis revealed an interstitial 429.5 Kb duplication of chromosome 18p11.32-p11.3 containing four genes, namely: SMCHD1, EMILIN2, LPIN2, and MYOM1 both in patient and his father. EMILIN2 resulted overexpressed on skin fibroblasts. Also other members of this family, without evident signs of porokeratosis, carried the same duplication. Among these genes, we focused our attention on elastin microfibril interfacer 2 (EMILIN2) gene. Apoptosis plays a fundamental role in maintaining epidermal homeostasis, balancing keratinocytes proliferation, and forming the stratum corneum. EMILIN2 is known to trigger the apoptosis of different cell lines negatively affecting cell survival. It is expressed in the skin. We could speculate that the duplication and overexpression of EMILIN2 cause an abnormal apoptosis of epidermal keratinocytes and alter the process of keratinization, even if other epigenetic and genetic factors could also be involved. Our results could contribute to a better understanding of the pathogenesis of porokeratosis of Mibelli.
Collapse
Affiliation(s)
- Corrado Occella
- Unità Operativa di Dermatologia, Istituto Giannina Gaslini, Genova, Italy
| | | | | | | | | | | | | | | |
Collapse
|
38
|
Tassano E, Di Rocco M, Signa S, Gimelli G. De novo 13q31.1-q32.1 interstitial deletion encompassing the miR-17-92 cluster in a patient with Feingold syndrome-2. Am J Med Genet A 2013; 161A:894-6. [PMID: 23495052 DOI: 10.1002/ajmg.a.35781] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 10/24/2012] [Indexed: 11/08/2022]
Affiliation(s)
- E Tassano
- Laboratorio di Citogenetica, Istituto G. Gaslini, Genova, Italy.
| | | | | | | |
Collapse
|
39
|
Abstract
Peripheral arterial disease (PAD) is a cardiovascular disease risk equivalent and is a common problem in chronic kidney disease patients. Unlike in the general population, PAD in CKD occurs due to medial calcification as opposed to intimal atherosclerotic process. PAD intervention should be performed in select symptomatic patients, as described by the guidelines, and CVD risk factor modification should occur in all CKD patient, regardless of the presence of PAD. As a discipline, Interventional Nephrology has emerged out of a desire to create better outcomes for our patients and to "fix a problem." The core values of our discipline have evolved out of this fundamental desire to meet an unmet clinical need, to provide insight into a disease state specific to our patients, and to offer clinical/academic excellence in doing so. We must endeavor to follow a similar path in our approach to PAD. The purpose of this review is to educate interventional nephrologists in the diagnosis and treatment of PAD in their CKD patients.
Collapse
Affiliation(s)
- Alexander S Yevzlin
- Department of Medicine, Nephrology and Cardiovascular Medicine Sections, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA.
| | | |
Collapse
|
40
|
Capra V, Mirabelli-Badenier M, Stagnaro M, Rossi A, Tassano E, Gimelli S, Gimelli G. Identification of a rare 17p13.3 duplication including the BHLHA9 and YWHAE genes in a family with developmental delay and behavioural problems. BMC Med Genet 2012; 13:93. [PMID: 23035971 PMCID: PMC3495055 DOI: 10.1186/1471-2350-13-93] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Accepted: 10/01/2012] [Indexed: 11/10/2022]
Abstract
BACKGROUND Deletions and duplications of the PAFAH1B1 and YWHAE genes in 17p13.3 are associated with different clinical phenotypes. In particular, deletion of PAFAH1B1 causes isolated lissencephaly while deletions involving both PAFAH1B1 and YWHAE cause Miller-Dieker syndrome. Isolated duplications of PAFAH1B1 have been associated with mild developmental delay and hypotonia, while isolated duplications of YWHAE have been associated with autism. In particular, different dysmorphic features associated with PAFAH1B1 or YWHAE duplication have suggested the need to classify the patient clinical features in two groups according to which gene is involved in the chromosomal duplication. METHODS We analyze the proband and his family by classical cytogenetic and array-CGH analyses. The putative rearrangement was confirmed by fluorescence in situ hybridization. RESULTS We have identified a family segregating a 17p13.3 duplication extending 329.5 kilobases by FISH and array-CGH involving the YWHAE gene, but not PAFAH1B1, affected by a mild dysmorphic phenotype with associated autism and mental retardation. We propose that BHLHA9, YWHAE, and CRK genes contribute to the phenotype of our patient. The small chromosomal duplication was inherited from his mother who was affected by a bipolar and borderline disorder and was alcohol addicted. CONCLUSIONS We report an additional familial case of small 17p13.3 chromosomal duplication including only BHLHA9, YWHAE, and CRK genes. Our observation and further cases with similar microduplications are expected to be diagnosed, and will help better characterise the clinical spectrum of phenotypes associated with 17p13.3 microduplications.
Collapse
|
41
|
Tassano E, Alpigiani MG, Salvati P, Gimelli S, Lorini R, Gimelli G. Molecular cytogenetic characterization of the first reported case of an inv dup (4p)(p15.1-pter) with a concomitant 4q35.1-qter deletion and normal parents. Gene 2012; 511:338-40. [PMID: 23031810 DOI: 10.1016/j.gene.2012.09.083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 07/30/2012] [Accepted: 09/12/2012] [Indexed: 12/01/2022]
Abstract
Inverted duplications associated with terminal deletions are complex anomalies described in an increasing of chromosome ends. We report on the cytogenetic characterization of the first de novo inv dup del(4) with partial 4p duplication and 4q deletion in a girl with clinical signs consistent with "recombinant 4 syndrome". This abnormality was suspected by banding, but high-resolution molecular cytogenetic investigations allowed us to define the breakpoints of the rearrangement. The terminal duplicated region extending from 4p15.1 to the telomere was estimated to be 29.27 Mb, while the size of the terminal deletion was 3.114 Mb in the 4q35.1 region. Until now, 10 patients with duplicated 4p14-p15 and deleted 4q35 chromosome 4 have been described. In all cases the abnormal chromosome 4 was derived from a pericentric inversion inherited from one of the parents. In conclusion, we have identified the first case of inv dup del(4) with normal parents suggesting that, often, terminal duplications or terminal deletions mask complex rearrangements.
Collapse
Affiliation(s)
- E Tassano
- Laboratorio di Citogenetica, Istituto Giannina Gaslini IRCCS, Genova, Italy
| | | | | | | | | | | |
Collapse
|
42
|
Striano P, Paravidino R, Sicca F, Chiurazzi P, Gimelli S, Coppola A, Robbiano A, Traverso M, Pintaudi M, Giovannini S, Operto F, Vigliano P, Granata T, Coppola G, Romeo A, Specchio N, Giordano L, Osborne LR, Gimelli G, Minetti C, Zara F. West syndrome associated with 14q12 duplications harboring FOXG1. Neurology 2011; 76:1600-2. [PMID: 21536641 DOI: 10.1212/wnl.0b013e3182194bbf] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- P Striano
- Muscular and Neurodegenerative Diseases Unit, Institute G. Gaslini, University of Genova, Genova, Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
de Greef J, Wang J, Balog J, den Dunnen J, Frants R, Straasheijm K, Aytekin C, van der Burg M, Duprez L, Ferster A, Gennery A, Gimelli G, Reisli I, Schuetz C, Schulz A, Smeets D, Sznajer Y, Wijmenga C, van Eggermond M, van Ostaijen-ten Dam M, Lankester A, van Tol M, van den Elsen P, Weemaes C, van der Maarel S. Mutations in ZBTB24 are associated with immunodeficiency, centromeric instability, and facial anomalies syndrome type 2. Am J Hum Genet 2011; 88:796-804. [PMID: 21596365 DOI: 10.1016/j.ajhg.2011.04.018] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2011] [Revised: 04/24/2011] [Accepted: 04/27/2011] [Indexed: 01/08/2023] Open
Abstract
Autosomal-recessive immunodeficiency, centromeric instability, and facial anomalies (ICF) syndrome is mainly characterized by recurrent, often fatal, respiratory and gastrointestinal infections. About 50% of patients carry mutations in the DNA methyltransferase 3B gene (DNMT3B) (ICF1). The remaining patients carry unknown genetic defects (ICF2) but share with ICF1 patients the same immunological and epigenetic features, including hypomethylation of juxtacentromeric repeat sequences. We performed homozygosity mapping in five unrelated ICF2 patients with consanguineous parents and then performed whole-exome sequencing in one of these patients and Sanger sequencing in all to identify mutations in the zinc-finger- and BTB (bric-a-bric, tramtrack, broad complex)-domain-containing 24 (ZBTB24) gene in four consanguineously descended ICF2 patients. Additionally, we found ZBTB24 mutations in an affected sibling pair and in one patient for whom it was not known whether his parents were consanguineous. ZBTB24 belongs to a large family of transcriptional repressors that include members, such as BCL6 and PATZ1, with prominent regulatory roles in hematopoietic development and malignancy. These data thus indicate that ZBTB24 is involved in DNA methylation of juxtacentromeric DNA and in B cell development and/or B and T cell interactions. Because ZBTB24 is a putative DNA-binding protein highly expressed in the lymphoid lineage, we predict that by studying the molecular function of ZBTB24, we will improve our understanding of the molecular pathophysiology of ICF syndrome and of lymphocyte biology in general.
Collapse
|
44
|
Cuoco C, Ronchetto P, Gimelli S, Béna F, Divizia MT, Lerone M, Mirabelli-Badenier M, Mascaretti M, Gimelli G. Microarray based analysis of an inherited terminal 3p26.3 deletion, containing only the CHL1 gene, from a normal father to his two affected children. Orphanet J Rare Dis 2011; 6:12. [PMID: 21457564 PMCID: PMC3090742 DOI: 10.1186/1750-1172-6-12] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Accepted: 04/01/2011] [Indexed: 11/27/2022] Open
Abstract
Background terminal deletions of the distal portion of the short arm of chromosome 3 cause a rare contiguous gene disorder characterized by growth retardation, developmental delay, mental retardation, dysmorphisms, microcephaly and ptosis. The phenotype of individuals with deletions varies from normal to severe. It was suggested that a 1,5 Mb minimal terminal deletion including the two genes CRBN and CNTN4 is sufficient to cause the syndrome. In addition the CHL1 gene, mapping at 3p26.3 distally to CRBN and CNTN4, was proposed as candidate gene for a non specific mental retardation because of its high level of expression in the brain. Methods and Results we describe two affected siblings in which array-CGH analysis disclosed an identical discontinuous terminal 3p26.3 deletion spanning less than 1 Mb. The deletion was transmitted from their normal father and included only the CHL1 gene. The two brothers present microcephaly, light mental retardation, learning and language difficulties but not the typical phenotype manifestations described in 3p- syndrome. Conclusion a terminal 3p26.3 deletion including only the CHL1 gene is a very rare finding previously reported only in one family. The phenotype of the affected individuals in the two families is very similar and the deletion has been inherited from an apparently normal parent. As already described for others recurrent syndromes with variable phenotype, these findings are challenging in genetic counselling because of an evident variable penetrance.
Collapse
Affiliation(s)
- Cristina Cuoco
- Laboratorio di Citogenetica, Istituto G. Gaslini, 16147 Genova, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Gimelli S, Caridi G, Beri S, McCracken K, Bocciardi R, Zordan P, Dagnino M, Fiorio P, Murer L, Benetti E, Zuffardi O, Giorda R, Wells JM, Gimelli G, Ghiggeri GM. Mutations in SOX17 are associated with congenital anomalies of the kidney and the urinary tract. Hum Mutat 2010; 31:1352-9. [PMID: 20960469 PMCID: PMC3056145 DOI: 10.1002/humu.21378] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Accepted: 09/15/2010] [Indexed: 11/07/2022]
Abstract
Congenital anomalies of the kidney and the urinary tract (CAKUT) represent a major source of morbidity and mortality in children. Several factors (PAX, SOX,WNT, RET, GDFN, and others) play critical roles during the differentiation process that leads to the formation of nephron epithelia. We have identified mutations in SOX17, an HMG-box transcription factor and Wnt signaling antagonist, in eight patients with CAKUT (seven vesico-ureteric reflux, one pelvic obstruction). One mutation, c.775T>A (p.Y259N), recurred in six patients. Four cases derived from two small families; renal scars with urinary infection represented the main symptom at presentation in all but two patients. Transfection studies indicated a 5-10-fold increase in the levels of the mutant protein relative to wild-type SOX17 in transfected kidney cells. Moreover we observed a corresponding increase in the ability of SOX17 p.Y259N to inhibit Wnt/β-catenin transcriptional activity, which is known to regulate multiple stages of kidney and urinary tract development. In conclusion, SOX17 p.Y259N mutation is recurrent in patients with CAKUT. Our data shows that this mutation correlates with an inappropriate accumulation of SOX17-p.Y259N protein and inhibition of the β-catenin/Wnt signaling pathway. These data indicate a role of SOX17 in human kidney and urinary tract development and implicate the SOX17-p.Y259N mutation as a causative factor in CAKUT.
Collapse
Affiliation(s)
- Stefania Gimelli
- Biologia Generale e Genetica Medica, Università di Pavia, Pavia, Italy; Service of Genetic Medicine, University Hospitals of Geneva, Geneva, Switzerland
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Gimelli S, Divizia MT, Lerone M, Bricco L, Béna F, Antonarakis SE, Ravazzolo R, Gimelli G. Array-CGH analysis in a patient with WAGR syndrome and a reciprocal translocation t(2;11) inherited from the normal father with double translocation. Am J Med Genet A 2010; 152A:2130-3. [DOI: 10.1002/ajmg.a.33517] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
47
|
Jefferson A, Colella S, Moralli D, Wilson N, Yusuf M, Gimelli G, Ragoussis J, Volpi EV. Altered intra-nuclear organisation of heterochromatin and genes in ICF syndrome. PLoS One 2010; 5:e11364. [PMID: 20613881 PMCID: PMC2894064 DOI: 10.1371/journal.pone.0011364] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Accepted: 05/27/2010] [Indexed: 12/16/2022] Open
Abstract
The ICF syndrome is a rare autosomal recessive disorder, the most common symptoms of which are immunodeficiency, facial anomalies and cytogenetic defects involving decondensation and instability of chromosome 1, 9 and 16 centromeric regions. ICF is also characterised by significant hypomethylation of the classical satellite DNA, the major constituent of the juxtacentromeric heterochromatin. Here we report the first attempt at analysing some of the defining genetic and epigenetic changes of this syndrome from a nuclear architecture perspective. In particular, we have compared in ICF (Type 1 and Type 2) and controls the large-scale organisation of chromosome 1 and 16 juxtacentromeric heterochromatic regions, their intra-nuclear positioning, and co-localisation with five specific genes (BTG2, CNN3, ID3, RGS1, F13A1), on which we have concurrently conducted expression and methylation analysis. Our investigations, carried out by a combination of molecular and cytological techniques, demonstrate the existence of specific and quantifiable differences in the genomic and nuclear organisation of the juxtacentromeric heterochromatin in ICF. DNA hypomethylation, previously reported to correlate with the decondensation of centromeric regions in metaphase described in these patients, appears also to correlate with the heterochromatin spatial configuration in interphase. Finally, our findings on the relative positioning of hypomethylated satellite sequences and abnormally expressed genes suggest a connection between disruption of long-range gene-heterochromatin associations and some of the changes in gene expression in ICF. Beyond its relevance to the ICF syndrome, by addressing fundamental principles of chromosome functional organisation within the cell nucleus, this work aims to contribute to the current debate on the epigenetic impact of nuclear architecture in development and disease.
Collapse
Affiliation(s)
- Andrew Jefferson
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Stefano Colella
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Daniela Moralli
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Natalie Wilson
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Mohammed Yusuf
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Giorgio Gimelli
- Laboratorio di Citogenetica, Istituto G. Gaslini, Genova, Italy
| | - Jiannis Ragoussis
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Emanuela V. Volpi
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| |
Collapse
|
48
|
Gimelli S, Chrast J, Baban A, Henrichsen CN, Lerone M, Zuffardi O, Gimelli G, Reymond A. A t(7;12) balanced translocation with breakpoints overlapping those of the Williams-Beuren and 12q14 microdeletion syndromes. Am J Med Genet A 2010; 152A:1285-94. [PMID: 20425838 DOI: 10.1002/ajmg.a.33365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The molecular characterization of balanced chromosomal rearrangements have always been of advantage in identifying disease-causing genes. Here, we describe the breakpoint mapping of a de novo balanced translocation t(7;12)(q11.22;q14.2) in a patient presenting with a failure to thrive associated with moderate mental retardation, facial anomalies, and chronic constipation. The localization of the breakpoints and the co-occurrence of Williams-Beuren syndrome and 12q14 microdeletion syndrome phenotypes suggested that the expression of some of the dosage-sensitive genes of these two segmental aneuploidies were modified in cells of the proposita. However, we were unable to identify chromosomes 7 and/or 12-mapping genes that showed disturbed expression in the lymphoblastoids of the proposita. This case showed that position-effect might operate in some tissues, but not in others. It also illustrates the overlap of phenotypes presented by patients with the recently described 12q14 structural rearrangements.
Collapse
Affiliation(s)
- Stefania Gimelli
- Biologia Generale e Genetica Medica, Universita' di Pavia and IRCCS C. Mondino, Pavia, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Puliti A, Rizzato C, Conti V, Bedini A, Gimelli G, Barale R, Sbrana I. Low-copy repeats on chromosome 22q11.2 show replication timing switches, DNA flexibility peaks and stress inducible asynchrony, sharing instability features with fragile sites. Mutat Res 2010; 686:74-83. [PMID: 20138061 DOI: 10.1016/j.mrfmmm.2010.01.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2009] [Revised: 01/16/2010] [Accepted: 01/27/2010] [Indexed: 11/19/2022]
Abstract
The 22q11.2 region is a hotspot for chromosomal rearrangements mediated by LCR22A-D low-copy repeats. Sequence motifs and homology-driven mechanisms have been suggested to mediate rearrangements. Nevertheless, recent evidence has emphasized the role of functional properties in genome instability, suggesting that replication timing transition regions could be peculiarly prone to genetic damage. In this work, we show that an early-late replication-transition zone is localised within LCR22A, the shared proximal endpoint of the majority of deletions and duplications of 22q11.2 region. Transition zone is characterized by asynchronous replication and by a DNA flexibility peak, features which are relevant for double-strand breaks and rearrangements at fragile sites. This and other flexibility peaks, associated with less relevant replication anomalies, are present in clusters inside LCR22A, B and D. All of them are composed of modules of AT-rich sequences, DNA satellites, and a HIV-1 integration site; moreover, they have coincidental position with boundaries of duplicons inside segmental duplications and with breakpoints of recurrent translocations. Noteworthy, flexibility peaks also lay at breakpoints of translocation partner chromosomes, three of which, 1p21.2, 8q24.13 and 11q23.3, have been positioned inside known common fragile sites. In many cases peaks are associated with potential matrix attachment regions (MARs). We propose that, similarly to fragile sites, replication perturbation and flexibility peaks may mediate strand breakage and rearrangements. Consistently with this view we show that the replication timing transition zone detected inside LCR22A is susceptible to replicative stress by aphidicolin, known inducer of fragile sites. These findings emphasize the significance of mutagenic exposure for the constitutional syndrome origin.
Collapse
Affiliation(s)
- Aldamaria Puliti
- Laboratory of Molecular Genetics and Cytogenetics, G. Gaslini Institute, Genova, Italy
| | | | | | | | | | | | | |
Collapse
|
50
|
Abstract
A case is described in which the inflow of a left radiocephalic arteriovenous fistula was being maintained by retrograde flow from a patent left internal mammary artery bypass graft, distal to a severe left subclavian artery stenosis. The clinical manifestations of this phenomenon were angina, lateral chest wall pain during dialysis, and distal hypoperfusion of the left hand. After stenting of the subclavian lesion, all symptoms resolved.
Collapse
Affiliation(s)
- Aaron B Schoenkerman
- Department of Medicine, Section of Cardiovascular Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53713, USA
| | | | | |
Collapse
|