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Yue F, Jiang Y, Yu Y, Yang X, Zhang H, Liu R, Wang R. Clinical, cytogenetic, and molecular findings in a fetus with ultrasonic multiple malformations, 4q duplication, and 7q deletion: A case report and literature review. Medicine (Baltimore) 2018; 97:e13094. [PMID: 30407316 PMCID: PMC6250448 DOI: 10.1097/md.0000000000013094] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
RATIONALE Chromosome deletion/duplication has been reported to be associated with mental disability and dysmorphism according to the accumulated research evidence. PATIENT CONCERNS A 25-year-old woman underwent amniocentesis for cytogenetic and single-nucleotide polymorphism (SNP) array analysis at 18 weeks of gestation due to the increased Down syndrome risk of 1/13. DIAGNOSES The fetal chromosomal analysis revealed a seemingly "normal" chromosomal karyotype, but the SNP array results showed a partial duplication of chromosome 4q34.1q35.2 and a deletion of chromosome 7q34q36.3fluorescence in situ hybridization (FISH) analysis showed that the couple had normal chromosome 4 and 7, whereas there was a partial signal fragment of chromosome 4 attached on the long arm of chromosome 7 for the fetus. INTERVENTIONS The couple finally chose to terminate the pregnancy based on the ultrasonic multiple malformations and the abnormal SNP array results. OUTCOMES The duplicated/deleted segments of the fetus were de novo. Meanwhile, we consider SHH and XRCC2 as good candidate genes, which may, in part, explain the observed abnormalities for the fetus. LESSONS The combination of SNP array and FISH analysis can give a molecular chromosomal diagnosis, which will offer more clear cytogenetic diagnosis and genetic counseling.
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Affiliation(s)
- Fagui Yue
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Yuting Jiang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Yang Yu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Xiao Yang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Hongguo Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Ruizhi Liu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
| | - Ruixue Wang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital
- Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, China
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Ledig S, Tewes A, Hucke J, Römer T, Kapczuk K, Schippert C, Hillemanns P, Wieacker P. Array-comparative genomic hybridization analysis in patients with Müllerian fusion anomalies. Clin Genet 2018; 93:640-646. [DOI: 10.1111/cge.13160] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 10/19/2017] [Accepted: 10/20/2017] [Indexed: 12/18/2022]
Affiliation(s)
- S. Ledig
- Institute of Human Genetics; Westfälische Wilhelms-Universität Münster (WWU); Münster Germany
| | - A.C. Tewes
- Institute of Human Genetics; Westfälische Wilhelms-Universität Münster (WWU); Münster Germany
| | - J. Hucke
- Department of Obstetrics and Gynecology; Agaplesion Bethesda Krankenhaus; Wuppertal Germany
| | - T. Römer
- Department of Obstetrics and Gynecology; Evangelisches Krankenhaus Köln-Weyertal; Köln-Weyertal Germany
| | - K. Kapczuk
- Division of Gynecology; Poznan University of Medical Sciences; Poznan Poland
| | - C. Schippert
- Department of Obstetrics and Gynecology; Medical School Hannover; Hannover Germany
| | - P. Hillemanns
- Department of Obstetrics and Gynecology; Medical School Hannover; Hannover Germany
| | - P. Wieacker
- Institute of Human Genetics; Westfälische Wilhelms-Universität Münster (WWU); Münster Germany
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Villacis RAR, Basso TR, Canto LM, Nóbrega AF, Achatz MI, Rogatto SR. Germline large genomic alterations on 7q in patients with multiple primary cancers. Sci Rep 2017; 7:41677. [PMID: 28139749 PMCID: PMC5282589 DOI: 10.1038/srep41677] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 12/29/2016] [Indexed: 11/11/2022] Open
Abstract
Patients with multiple primary cancers (MPCs) are suspected to have a hereditary cancer syndrome. However, only a small proportion may be explained by mutations in high-penetrance genes. We investigate two unrelated MPC patients that met Hereditary Breast and Ovaria Cancer criteria, both presenting triple negative breast tumors and no mutations in BRCA1, BRCA2 and TP53 genes. Germline rearrangements on chromosome 7q, involving over 40 Mb of the same region, were found in both patients: one with mosaic loss (80% of cells) and the other with cnLOH (copy-neutral loss of heterozygosity) secondary to maternal allele duplication. Five children tested had no alterations on 7q. The patients shared 330 genes in common on 7q22.1-q34, including several tumor suppressor genes (TSGs) previously related to breast cancer risk and imprinted genes. The analysis of the triple negative BC from one patient revealed a mosaic gain of 7q translated for over-expressed cancer-related genes. The involvement of TSGs and imprinted genes, mapped on 7q, has the potential of being associated to MPC risk, as well as cancer progression. To our knowledge, this is the first description of patients with MPCs that harbor constitutive large alterations on 7q.
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Affiliation(s)
- R. A. R. Villacis
- International Research Center (CIPE), A.C. Camargo Cancer Center, São Paulo, SP, Brazil
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília - UnB, Brasília, DF, Brazil
| | - T. R. Basso
- International Research Center (CIPE), A.C. Camargo Cancer Center, São Paulo, SP, Brazil
| | - L. M. Canto
- International Research Center (CIPE), A.C. Camargo Cancer Center, São Paulo, SP, Brazil
| | - A. F. Nóbrega
- Department of Oncogenetics, A.C. Camargo Cancer Center, São Paulo, Brazil
| | - M. I. Achatz
- Department of Oncogenetics, A.C. Camargo Cancer Center, São Paulo, Brazil
| | - S. R. Rogatto
- International Research Center (CIPE), A.C. Camargo Cancer Center, São Paulo, SP, Brazil
- Department of Clinical Genetics, Vejle Hospital, DK and University of Southern Denmark, Denmark
- Department of Urology, Faculty of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
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Katz OL, Krantz ID, Noon SE. Interstitial deletion of 7q22.1q31.1 in a boy with structural brain abnormality, cardiac defect, developmental delay, and dysmorphic features. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2016; 172:92-101. [PMID: 27096924 DOI: 10.1002/ajmg.c.31485] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This report describes a male child with a history of poor feeding and swallowing problems, hypotonia, mild bilateral sensorineural hearing loss, cerebral cortical agenesis, cardiac defects, cyanotic episodes triggered by specific movement, dysmorphic features, and developmental delays. Analysis by CytoScan HD array identified a 12.1 Mb interstitial deletion of 7q22.1q31.1 (98,779,628-110,868,171). We present a comprehensive review of the literature surrounding intermediate 7q deletions that overlap with this child's deletion, and an analysis of candidate genes in the deleted region. © 2016 Wiley Periodicals, Inc.
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Del Refugio Rivera-Vega M, Gómez-Del Angel LA, Valdes-Miranda JM, Pérez-Cabrera A, Gonzalez-Huerta LM, Toral-López J, Cuevas-Covarrubias S. A Novel 23.1 Mb Interstitial Deletion Involving 7q22.3q32.1 in a Girl with Short Stature, Motor Delay, and Craniofacial Dysmorphism. Cytogenet Genome Res 2015; 145:1-5. [PMID: 25870946 DOI: 10.1159/000381234] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/19/2015] [Indexed: 11/19/2022] Open
Abstract
Interstitial deletions of 7q show a wide phenotypic spectrum that varies with respect to the location and size of the deleted region. They lead to craniofacial dysmorphism with intellectual disability, growth retardation, and various congenital defects. Here, a Mexican girl with microcephaly, facial dysmorphism, short stature, hand anomalies, and intellectual disability was analyzed by CytoScan HD array. Her phenotype was associated with a de novo 7q22.3q32.1 deletion involving 109 loci, 57 of them listed in the OMIM database. This novel deletion increases the knowledge of the variability in the rupture sites of the region and expands the spectrum of molecular and clinical defects of the 7q deletion syndrome.
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Affiliation(s)
- Maria Del Refugio Rivera-Vega
- Departamento de Genética Médica, Hospital General de México/Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), México, DF, México
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Brandl EJ, Chowdhury NI, Tiwari AK, Lett TAP, Meltzer HY, Kennedy JL, Müller DJ. Genetic variation in CYP3A43 is associated with response to antipsychotic medication. J Neural Transm (Vienna) 2014; 122:29-34. [PMID: 25150845 DOI: 10.1007/s00702-014-1298-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Accepted: 08/13/2014] [Indexed: 10/24/2022]
Abstract
Genetic variation in cytochrome enzymes is known to affect drug metabolism and influence treatment response. Recently, the rs472660 variant in CYP3A43 has been associated with olanzapine response and clearance. In this study, we investigated the impact of rs472660 and the putatively functional marker rs680055 on antipsychotic response. We genotyped the rs472660 and rs680055 single nucleotide polymorphisms (SNPs) in N = 152 schizophrenia patients of European descent collected at two sample sites who were predominately treated with second generation antipsychotics for up to 6 months. Treatment response was assessed prospectively using Brief Psychiatric Rating Scale (BPRS) scores. Statistical analysis was performed using Chi square and analysis of covariance. The rs680055 SNP was significantly associated with treatment response. Carriers of the minor allele had significantly lower BPRS scores at study end (p = 5.9 × 10(-4)) with 8 % of the variance being explained by rs680055 genotype. Post hoc analyses revealed that this effect was present in both samples and in both genders. The rs472660 SNP was also associated with response (p = 0.027); however, this finding was not significant after multiple test correction. This is the first evidence that the rs680055 missense mutation influences antipsychotic response. Although our finding for rs472660 was only a non-significant trend after correction, our results still support the notion that this SNP may play a role in antipsychotic response. Despite the fact that the functional role of CYP3A43 in antipsychotic metabolism is not fully understood yet, our study provides an important contribution to understanding genetic factors of antipsychotic response.
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Affiliation(s)
- Eva J Brandl
- Pharmacogenetics Research Clinic, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, 250 College Street, Toronto, ON, M5T1R8, Canada,
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Martínez-Jacobo L, Córdova-Fletes C, Ortiz-López R, Rivas F, Saucedo-Carrasco C, Rojas-Martínez A. Delineation of a de novo 7q21.3q31.1 Deletion by CGH-SNP Arrays in a Girl with Multiple Congenital Anomalies Including Severe Glaucoma. Mol Syndromol 2013; 4:285-91. [PMID: 24167464 DOI: 10.1159/000353510] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
In this study, we present a female patient with a constitutional de novo deletion in 7q21.3q31.1 as determined by G-banding and CGH-SNP arrays. She exhibited, among other features, psychomotor retardation, congenital severe bilateral glaucoma, a cleft palate, and heart defect. Microarray assay disclosed a deleted 12.5-Mb region roughly 88 kb downstream the ectrodactyly critical region; thus, the patient's final karyotype was 46,XX.arr 7q21.3q31.1(96,742,140-109,246,085)×1 dn. This girl represents the fourth patient described so far with congenital glaucoma and a deletion encompassing or overlapping the 7q21.3q31.1 region, and confirms the presence of a locus or loci related to such a clinical feature. According to our results, the proneness to ocular defects secondary to 7q intermediate deletions could be caused by co-deletion of TAC1, HBP1, and a small cluster of cytochrome P450 genes (subfamily 3A). This conclusion is supported by their functional roles and expression locations as well as because TAC1 is related to the functional pathway of the MYOC gene whose mutations are linked to glaucoma. Moreover, given that this girl is clinically reminiscent of several phenotypes related to diverse deletions within 7q21q32, our results and observations offer a general overview of the gene content of deletions/phenotypes overlapping 7q21.3q31.1 and confirm that loci distal to DLX genes including the CUX1 gene and potential regulatory elements downstream from DLX5 are unrelated to ectrodactyly.
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Affiliation(s)
- L Martínez-Jacobo
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Monterrey, Mexico
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Chen CP, Lee MJ, Chern SR, Wu PS, Su JW, Chen YT, Lee MS, Wang W. Prenatal diagnosis and molecular cytogenetic characterization of a de novo proximal interstitial deletion of chromosome 4p (4p15.2→p14). Gene 2013; 529:351-6. [PMID: 23948085 DOI: 10.1016/j.gene.2013.07.063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 07/13/2013] [Accepted: 07/16/2013] [Indexed: 02/03/2023]
Abstract
We present prenatal diagnosis of de novo proximal interstitial deletion of chromosome 4p (4p15.2→p14) and molecular cytogenetic characterization of the deletion using uncultured amniocytes. We review the phenotypic abnormalities of previously reported patients with similar proximal interstitial 4p deletions, and we discuss the functions of the genes of RBPJ, CCKAR, STIM2, PCDH7 and ARAP2 that are deleted within this region.
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Affiliation(s)
- Chih-Ping Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan; Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan; Department of Biotechnology, Asia University, Taichung, Taiwan; School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Institute of Clinical and Community Health Nursing, National Yang-Ming University, Taipei, Taiwan; Department of Obstetrics and Gynecology, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
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