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Lin Q, Liang C, Du B, Li L, Li H, Mai X, Li S, Xu W, Wu C, Zeng M. Prenatal detection and molecular cytogenetic characterization of Xp deletion and Xq duplication: a case report and literature review. BMC Med Genomics 2024; 17:57. [PMID: 38383389 PMCID: PMC10880359 DOI: 10.1186/s12920-024-01824-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/06/2024] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND Copy number variation (CNV) of X chromosome can lead to a variety of neonatal abnormalities, especially for male fetuses. In recent years, due to the high sensitivity and high specificity of NIPS, its application has gradually expanded from chromosome aneuploidy to CNV. Few prenatal cases involving the detection of Xq duplication and deletion by NIPS have been reported, but it is of great significance for genetic counseling. CASE PRESENTATION A 36-year-old woman was referred for prenatal diagnosis and genetic counseling at 17 weeks of gestation because of abnormal result of noninvasive prenatal screening (NIPS). Multiple congenital malformations, hydrocephalus, and enlarged gallbladder were observed by prenatal ultrasound. Amniocentesis revealed the karyotype of the fetus as 46, XN, add(X) (p22.2) and the result of chromosomal microarray analysis was arr[hg19] Xq27.1q28(138,506,454-154896094) × 2 and arr[hg19] Xp22.33p22.32(168,551-5,616,964) × 1. CNV-seq showed that the mother shares a 16.42 Mb duplication in the Xq27.1-q28 region and a 2.97 Mb deletion in the Xp22.33-p22.32 region. After genetic counseling, the couple chose to terminate the pregnancy. CONCLUSION The combination of NIPS and CMA would be of values in detection of subchromosomal duplications and/or deletions at fetal stage. The detection of X chromosome aberration in a male fetus should give suspicion of the possibility of maternal inheritance.
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Affiliation(s)
- Qing Lin
- Center of Prenatal Diagnosis, Zhanjiang Maternity and Child Health Care Hospital, Zhanjiang, China.
| | - Chunya Liang
- Center of Prenatal Diagnosis, Zhanjiang Maternity and Child Health Care Hospital, Zhanjiang, China
| | - Bole Du
- Guangzhou Jingke Biotechnology Co., Ltd, Guangzhou, P. R. China
| | - Lijiao Li
- Center of Prenatal Diagnosis, Zhanjiang Maternity and Child Health Care Hospital, Zhanjiang, China
| | - Hong Li
- Guangzhou Jingke Biotechnology Co., Ltd, Guangzhou, P. R. China
| | - Xiaolan Mai
- Center of Prenatal Diagnosis, Zhanjiang Maternity and Child Health Care Hospital, Zhanjiang, China
| | - Sheng Li
- Guangzhou Jingke Biotechnology Co., Ltd, Guangzhou, P. R. China
| | - Wenyu Xu
- Center of Prenatal Diagnosis, Zhanjiang Maternity and Child Health Care Hospital, Zhanjiang, China
| | - Cunzhen Wu
- Center of Prenatal Diagnosis, Zhanjiang Maternity and Child Health Care Hospital, Zhanjiang, China
| | - Mi Zeng
- Guangzhou Jingke Biotechnology Co., Ltd, Guangzhou, P. R. China
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Chen CP, Huang JP, Chen YY, Chen SW, Chern SR, Wu PS, Wu FT, Pan YT, Chen WL, Pan CW, Wang W. Molecular cytogenetic characterization of del(X)(p22.33)mat and de novo dup(4)(q34.3q35.2) in a male fetus with multiple anomalies of facial dysmorphism, ventriculomegaly, congenital heart defects, short long bones and clinodactyly. Taiwan J Obstet Gynecol 2023; 62:453-456. [PMID: 37188453 DOI: 10.1016/j.tjog.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2023] [Indexed: 05/17/2023] Open
Abstract
OBJECTIVE We present molecular cytogenetic characterization of del(X) (p22.33)mat and de novo dup(4) (q34.3q35.2) in a male fetus with multiple anomalies of facial dysmorphism, ventriculomegaly, congenital heart defects, short long bones and clinodactyly. CASE REPORT A 36-year-old, gravida 3, para 1, woman with short stature (152 cm) underwent amniocentesis at 17 weeks of gestation because of advanced maternal age. Amniocentesis revealed a karyotype of 46,Y,del(X)(p22.33)mat, dup(4)(q34.3q35.2). The mother had a karyotype of 46,X,del(X)(p22.33). Array comparative genomic hybridization (aCGH) analysis on the DNA extracted from cultured amniocytes revealed arr Xp22.33 × 0, 4q34.3q35.2 × 3. Prenatal ultrasound at 23 weeks of gestation revealed multiple anomalies of flat nasal bridge, ventriculomegaly, atrioventricular septal defect (AVSD) and clinodactyly. The pregnancy was subsequently terminated, and a malformed fetus was delivered with facial dysmorphism. Cytogenetic analysis of the umbilical cord revealed 46,Y,del(X)(p22.33)mat, dup(4)(q34.3q35.2)dn. aCGH analysis on the DNA extracted from the umbilical cord revealed arr [GRCh37 (hg19)] 4q34.3q35.2 (181,149,823-188,191,938) × 3.0, arr Xp22.33 (470,485-2,985,006) × 0 with a 7.042-Mb duplication of 4q34.3-q35.2 and a 2.514-Mb deletion of Xp22.33. CONCLUSION A male fetus with del(X)(p22.33) and dup(4)(q34.3q35.2) may present congenital heart defects and short long bones on prenatal ultrasound.
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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; School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Institute of Clinical and Community Health Nursing, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Obstetrics and Gynecology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medical and Health Science, Asia University, Taichung, Taiwan.
| | - Jian-Pei Huang
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan; MacKay Junior College of Medicine, Nursing and Management, Taipei, Taiwan
| | - Yi-Yung Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Shin-Wen Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Schu-Rern Chern
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | | | - Fang-Tzu Wu
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Yen-Ting Pan
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Wen-Lin Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Chen-Wen Pan
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Wayseen Wang
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
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Pasińska M, Łazarczyk E, Repczyńska A, Sobczyńska-Tomaszewska A, Zimowski J, Runge A, Haus O. Clinical Importance of aCGH in Genetic Counselling of Children with Psychomotor Retardation. Appl Clin Genet 2022; 15:27-38. [PMID: 35603035 PMCID: PMC9116409 DOI: 10.2147/tacg.s357136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 04/13/2022] [Indexed: 12/02/2022] Open
Abstract
Introduction The X and Y chromosomes are responsible for the determination and differentiation of the gonads, and their numerical and structural abnormalities may cause the abnormal development of secondary sex characteristics. The presence of abnormalities concerning X chromosome can also contribute to many genetically heterogeneous diseases associated with cognitive impairment and intellectual disability. Purpose This study shows the effect of aberrations of the maternal X chromosome on the abnormal development of the child. Patients and Methods Ten women aged 26 to 40 years were consulted in genetic counselling clinic and subsequently subjected to cytogenetic and molecular tests due to abnormal psychomotor development of their children, in whom structural aberrations of the X chromosome had been detected. Results Two women were diagnosed with changes in karyotype: 46,X,der(X)t(X;Y)(p22.3;q11.2) in one and 46,X,inv(X)(p21.2q13). Five women were diagnosed with microduplications in the short arm of the X chromosome; dupXp22.31 in one, and in four women dupXp22.33. The remaining three women were diagnosed with duplication in the long arm of the X chromosome; dupXq25 in one and dupXq26.3 in two women. Conclusion Genetic analysis of the X chromosome, based on cytogenetic and molecular methods of the highest available resolution, is extremely important in women with reproductive failure. These methods allow establishing accurately the breakpoints and rearrangements in chromosomes, and assessment of the copy number variation (CNV) can explain phenotypic variability with apparently similar aberrations. A more precise characterization of the alterations is necessary for the correct genetic diagnosis, as well as determination of the carrier status and genetic risk in family members.
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Affiliation(s)
- Magdalena Pasińska
- Department of Clinical Genetics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Ewelina Łazarczyk
- Department of Clinical Genetics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Anna Repczyńska
- Department of Clinical Genetics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Bydgoszcz, Poland
| | | | - Janusz Zimowski
- Department of Genetics, Institute of Psychiatry and Neurology, Warszawa, Poland
| | - Agata Runge
- Department of Clinical Genetics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Olga Haus
- Department of Clinical Genetics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Bydgoszcz, Poland
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Sun ML, Yue FG, Zhang XY, Jiang YT, Li LL, Zhang HG, Liu RZ. Molecular cytogenetic characterization of 2q deletion and Xq duplication associated with nasal bone dysplasia in prenatal diagnosis: A case report and literature review. Taiwan J Obstet Gynecol 2022; 61:163-169. [PMID: 35181032 DOI: 10.1016/j.tjog.2021.11.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2021] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE We report a prenatal case of male fetus with a 2q13 deletion and an Xq27.3q28 duplication, presenting nasal bone dysplasia by ultrasound examination. And we compare the similarities of clinical features of cases consisting of similar 2q deletion and Xq duplication. CASE REPORT A 30-year-old woman was referred for prenatal diagnosis and genetic counseling at 24 weeks of gestation. Prenatal ultrasound showed nasal bone dysplasia of the fetus. Amniocentesis revealed the karyotype of the fetus as 46, XY and the results of chromosomal microarray analysis was arr[GRCh37] 2q13(110467258-111370025)x1, arr[GRCh37]Xq27.3q28(144050780-149748782)x2. The parents both have normal karyotypes. The couple chose to continue the pregnancy and finally delivered a male infant at 39 weeks of gestation. His weight was 2850 g and length was 50 cm. Physical examination of the newborn revealed no apparent anomalies. Until the boy was one year old, there was no abnormalities in his growth and development. The long-term follow-up till adulthood for the healthy infant is necessary. CONCLUSION The development of CMA plays a critical role in prenatal diagnosis and genetic counseling for unidentified chromosomal anomalies. More clinical information and further studies of patients with these anomalies will identify the pathogenicity of the involving genes and improve the understanding of the phenotype-genotype correlation.
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Affiliation(s)
- Mei-Ling Sun
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, Jilin, PR China; Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, Jilin, PR China
| | - Fa-Gui Yue
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, Jilin, PR China; Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, Jilin, PR China
| | - Xin-Yue Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, Jilin, PR China; Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, Jilin, PR China
| | - Yu-Ting Jiang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, Jilin, PR China; Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, Jilin, PR China
| | - Lei-Lei Li
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, Jilin, PR China; Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, Jilin, PR China
| | - Hong-Guo Zhang
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, Jilin, PR China; Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, Jilin, PR China
| | - Rui-Zhi Liu
- Center for Reproductive Medicine and Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, Jilin, PR China; Jilin Engineering Research Center for Reproductive Medicine and Genetics, Jilin University, Changchun, Jilin, PR China.
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Gururaja Rao S, Ponnalagu D, Patel NJ, Singh H. Three Decades of Chloride Intracellular Channel Proteins: From Organelle to Organ Physiology. CURRENT PROTOCOLS IN PHARMACOLOGY 2018; 80:11.21.1-11.21.17. [PMID: 30040212 PMCID: PMC6060641 DOI: 10.1002/cpph.36] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Intracellular organelles are membranous structures central for maintaining cellular physiology and the overall health of the cell. To maintain cellular function, intracellular organelles are required to tightly regulate their ionic homeostasis. Any imbalance in ionic concentrations can disrupt energy production (mitochondria), protein degradation (lysosomes), DNA replication (nucleus), or cellular signaling (endoplasmic reticulum). Ionic homeostasis is also important for volume regulation of intracellular organelles and is maintained by cation and anion channels as well as transporters. One of the major classes of ion channels predominantly localized to intracellular membranes is chloride intracellular channel proteins (CLICs). They are non-canonical ion channels with six homologs in mammals, existing as either soluble or integral membrane protein forms, with dual functions as enzymes and channels. Provided in this overview is a brief introduction to CLICs, and a summary of recent information on their localization, biophysical properties, and physiological roles. © 2018 by John Wiley & Sons, Inc.
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Affiliation(s)
- Shubha Gururaja Rao
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Devasena Ponnalagu
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Neel J Patel
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Harpreet Singh
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania
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Rosas A, Sztajnbok F, Nogueira T, Vitor J, Masiero A, Oliveira S. ARTRITE CRÔNICA E BAIXA ESTATURA EM CRIANÇA COM MUTAÇÃO SHOX. REVISTA BRASILEIRA DE REUMATOLOGIA 2017. [DOI: 10.1016/j.rbr.2017.07.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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