» Articles » PMID: 35847568

Identification of a Novel Variant in a Patient with Primary Ciliary Dyskinesia

Overview
Publisher Dove Medical Press
Date 2022 Jul 18
PMID 35847568
Authors
Affiliations
Soon will be listed here.
Abstract

Background: encodes a protein with 1012 amino acids, which is a component of basal bodies and centrioles, essential for cilia biogenesis. was reported to be associated with X-chromosome linked dysmorphology syndrome in early studies and recent studies reported a few cases with primary ciliary dyskinesia (PCD) caused by deficiency.

Case Presentation: We report a 31-year-old man who suffered from recurrent respiratory infections with typical manifestations of primary ciliary dyskinesia. In addition to respiratory manifestations, the patient also had situs inversus, obesity, gastroesophageal reflux, and hearing impairment. Clubbing fingers and mild streblomicrodactyly were also observed.

Examination Result: We performed whole-exome sequencing to identify a novel variant c.2795delA:p.(Lys932Argfs*3) in . The hemizygous variant was predicted to be likely pathogenic by bioinformatic analysis software and ACMG guideline. High-speed video microscopy (HSVM), transmission electron microscopy (TEM), and immunofluorescence were performed to analyze the respiratory cilia. A high beating frequency and a stiff beating pattern were observed under HSVM, while there were no significant abnormalities in TEM and immunofluorescence. The sperm flagella examinations were also generally normal.

Conclusion: Our study identified a novel frameshift variant in causing PCD, enriched the genetic spectrum of variants, and verified that mutation can lead to only a PCD characteristic phenotype, while other -associated syndromic symptoms such as dysmorphic features and renal symptoms were not present.

Citing Articles

Expanding the Genotypic and Phenotypic Spectrum of -Related Conditions: Three More Cases.

Kyian T, Borovikov A, Anisimova I, Ryzhkova O, Bulakh M, Bragina E Genes (Basel). 2025; 15(12.

PMID: 39766900 PMC: 11675874. DOI: 10.3390/genes15121633.


Characterization of pathogenic genetic variants in Russian patients with primary ciliary dyskinesia using gene panel sequencing and transcript analysis.

Zlotina A, Barashkova S, Zhuk S, Skitchenko R, Usoltsev D, Sokolnikova P Orphanet J Rare Dis. 2024; 19(1):310.

PMID: 39180133 PMC: 11344339. DOI: 10.1186/s13023-024-03318-3.


A novel homozygous RSPH4A variant in a family with primary ciliary dyskinesia and literature review.

Shen C, Shen Y, Huang W, Zhang A, Zou T, Guo D Front Genet. 2024; 15:1364476.

PMID: 38818043 PMC: 11137616. DOI: 10.3389/fgene.2024.1364476.


A novel heterozygous variant of FOXJ1 in a Chinese female with primary ciliary dyskinesia and hydrocephalus: A case report and literature review.

Gao S, Zhang Q, Feng B, Gu S, Li Z, Sun L Mol Genet Genomic Med. 2023; 11(9):e2235.

PMID: 37469238 PMC: 10496049. DOI: 10.1002/mgg3.2235.


Laparoscopic bladder diverticulectomy in a child with situs inversus totalis: A case report and literature review.

Chen J, Liu F, Tian J, Xiang M Front Surg. 2022; 9:1009949.

PMID: 36311920 PMC: 9614072. DOI: 10.3389/fsurg.2022.1009949.

References
1.
Zariwala M, Knowles M, Omran H . Genetic defects in ciliary structure and function. Annu Rev Physiol. 2006; 69:423-50. DOI: 10.1146/annurev.physiol.69.040705.141301. View

2.
Cooper T, Noonan E, von Eckardstein S, Auger J, Baker H, Behre H . World Health Organization reference values for human semen characteristics. Hum Reprod Update. 2009; 16(3):231-45. DOI: 10.1093/humupd/dmp048. View

3.
Collins S, Gove K, Walker W, Lucas J . Nasal nitric oxide screening for primary ciliary dyskinesia: systematic review and meta-analysis. Eur Respir J. 2014; 44(6):1589-99. DOI: 10.1183/09031936.00088614. View

4.
Fauth C, Toutain A . Comment on "Whole exome sequencing and array-based molecular karyotyping as aids to prenatal diagnosis in fetuses with suspected Simpson-Golabi-Behmel syndrome". Prenat Diagn. 2017; 37(10):1055-1056. DOI: 10.1002/pd.5137. View

5.
Guo Z, Chen W, Wang L, Qian L . Clinical and Genetic Spectrum of Children with Primary Ciliary Dyskinesia in China. J Pediatr. 2020; 225:157-165.e5. DOI: 10.1016/j.jpeds.2020.05.052. View