Journal of Diagnostics Concepts & Practice >

2023 , Vol. 22 >Issue 01: 58 - 63

DOI: https://doi.org/10.16150/j.1671-2870.2023.01.009

Original articles

Genotype and clinical phenotype analysis of a case of Stankiewicz-Isidor syndrome and literature review

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  • Department of Pediatrics,Shanghai Ruijin Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai 200025,China

Received date: 2022-03-15

  Online published: 2023-07-06

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Abstract

Objective: To analyze the clinical characteristics and examination results of a child with Stankiewicz-Isidor syndrome (STISS), and to provide reference for the diagnosis and treatment of special types of short stature. Methods: A 4-year-old boy with “4 years of developmental delay with craniofacial abnomality and ophthalmological malformation” was recruited,and detailed medical history were collected. Physical examination, laboratory detection [growth hormone stimulation test, insulin-like growth factor 1( IGF-1), thyroid function and other tests] and imaging examinations were performed. Whole-exome sequencing(WES) was used to detect suspicious mutation sites in children and their parents with se-cond-generation target region capture high-throughput sequencing technology, and the findings were verified by Sanger sequencing. The phenotypes and genotype of the STISS children were analyzed in combination with cases reported in literature reported in PubMed, China National Knowledge Internet(CNKI) and WANFANG DATA. Results: The child presented growth retardation, visual impairment, low ear position, mandibular recession, and special facial features of micrognathia. WES revealed a novel heterozygous frameshift variant c.1118delinsCC:p.Ile373ThrfsTer15 in the PSMD12 gene. According to ACMG guidelines, this was a pathogenic variant, which led to STISS.A total of 46 patients with STISS reported pre-viously,and thus there were 47 cases to be analyzed. It indicated that 89.4%(42/47) had growth and development disorders, 85.1%（40/47） had facial deformities, 70.2%（33/47） had intellectual disabilities, while brain imaging abnormalities and skin manifestations were rare.In 47 patients, 13 cases had PSMD12 gene deletion and 34 cases carried single base site mutations in PSMD12 gene. Conclusions: The STISS reported in this article is caused by a novel variation in PSMD12 gene. The child has common clinical phenotypes such as growth and development disorders and facial deformities, but the clinical phenotypes in patients with different genotypes are heterogeneous.

Key words： Stankiewicz-Isidor syndrome; PSMD12 gene; Genotype; Clinical phenotype

Cite this article

ZHANG Xuelei, HE Qinyu, ZHANG Xiwen, CHEN Lifen, DONG Zhiya . Genotype and clinical phenotype analysis of a case of Stankiewicz-Isidor syndrome and literature review[J]. Journal of Diagnostics Concepts & Practice, 2023 , 22(01) : 58 -63 . DOI: 10.16150/j.1671-2870.2023.01.009

References

[1] KüRY S, BESNARD T, EBSTEIN F, et al. De novo disruption of the proteasome regulatory subunit PSMD12 causes a syndromic neurodevelopmental disorder[J]. Am J Hum Genet, 2017, 100(4):689.
[2] KHALIL R, KENNY C, HILL R S, et al. PSMD12 haploinsufficiency in a neurodevelopmental disorder with autistic features[J]. Am J Med Genet B Neuropsychiatr Genet, 2018, 177(8):736-745.
[3] PALUMBO P, PALUMBO O, ESTER D M, et al. Expan-ding the clinical and molecular spectrum of PSMD12-related neurodevelopmental syndrome:an additional patient and review[J]. Arch Clin Med Case Rep, 2019; 3(5):250-260.
[4] ISIDOR B, EBSTEIN F, HURST A, et al. Stankiewicz-Isidor syndrome: expanding the clinical and molecular phenotype[J]. Genet Med, 2022, 24(1):179-191.
[5] YAN K, ZHANG J, LEE P Y, et al. Haploinsufficiency of PSMD12 Causes Proteasome Dysfunction and Subclinical Autoinflammation[J]. Arthritis Rheumatol, 2022, 74(6):1083-1090.
[6] TAVTIGIAN S V, HARRISON S M, BOUCHER K M, et al. Fitting a naturally scaled point system to the ACMG/AMP variant classification guidelines[J]. Hum Mutat, 2020, 41(10):1734-1737.
[7] HAN B, LUO J, JIANG P, et al. Inhibition of embryonic HSP 90 function promotes variation of cold tolerance in zebrafish[J]. Front Genet, 2020, 11:541944.
[8] F?RSTER F, UNVERDORBEN P, SLED? P, et al. Unveiling the long-held secrets of the 26S proteasome[J]. Structure, 2013, 21(9):1551-1562.
[9] HANCAROVA M, MALIKOVA M, KOTROVA M, et al. Association of 17q24.2-q24.3 deletions with recognizable phenotype and short telomeres[J]. Am J Med Genet A, 2018, 176(6):1438-1442.
[10] STANKIEWICZ P, KHAN T N, SZAFRANSKI P, et al. Haploinsufficiency of the chromatin remodeler BPTF causes syndromic developmental and speech delay, postnatal microcephaly, and dysmorphic features[J]. Am J Hum Genet, 2017, 101(4):503-515.
[11] ROSENFELD J A, PATEL A. Chromosomal microarrays: understanding genetics of neurodevelopmental disorders and congenital anomalies[J]. J Pediatr Genet, 2017, 6(1):42-50.
[12] RICE G I, MELKI I, FRéMOND M L, et al. Assessment of type I interferon signaling in pediatric inflammatory disease[J]. J Clin Immunol, 2017, 37(2):123-132.
[13] ZHANG N, OSBORN M, GITSHAM P, et al. Using yeast to place human genes in functional categories[J]. Gene, 2003, 303:121-129.
[14] GAMBIN T, YUAN B, BI W, et al. Identification of novel candidate disease genes from de novo exonic copy number variants[J]. Genome Med, 2017, 9(1):83.
[15] DAMBACHER C M, WORDEN E J, HERZIK M A, et al. Atomic structure of the 26S proteasome lid reveals the mechanism of deubiquitinase inhibition[J]. Elife, 2016, 5:e13027.
[16] SAEZ I, KOYUNCU S, GUTIERREZ G R, et al. Insights into the ubiquitin-proteasome system of human embryonic stem cells[J]. Sci Rep, 2018, 8(1):4092.
[17] SAXTON R A, SABATINI D M. MTOR signaling in growth,metabolism,and disease[J]. Cell, 2017, 168(6):960-976.
[18] T?RLUNGEANU D C, NOVARINO G. Genomics in neurodevelopmental disorders: an avenue to personalized medicine[J]. Exp Mol Med, 2018, 50(8):1-7.
[19] ISIDOR B, KüRY S, ROSENFELD J A, et al. De novo truncating mutations in the kinetochore-microtubules attachment gene CHAMP1 cause syndromic intellectual disability[J]. Hum Mutat, 2016, 37(4):354-358.
[20] NAUD M E, TOSCA L, MARTINOVIC J, et al. Prenatal diagnosis of a 2.5 Mb De Novo 17q24.1q24.2 Deletion encompassing KPNA2 and PSMD 12 Genes in a fetus with craniofacial dysmorphism, equinovarus feet, and syndactyly[J]. Case Rep Genet, 2017; 2017:7803136.
[21] SARRABAY G, MéCHIN D, SALHI A, et al. PSMB10, the last immunoproteasome gene missing for PRAAS[J]. J Allergy Clin Immunol, 2020, 145(3):1015-1017.
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