[Clinical characteristics and genetic analysis of a patient with Acephalic spermatozoa syndrome due to variant of PMFBP1 gene].

Autor: Feng K; Center for Reproductive Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital of Henan University, Henan Joint International Research Laboratory for Reproductive Bioengineering, Zhengzhou, Henan 450003, China. 13673631683@163.com., Xia Y, Qu X, Wan F, Yang K, Xu J, Zhang C, Guo H
Jazyk: čínština
Zdroj: Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics [Zhonghua Yi Xue Yi Chuan Xue Za Zhi] 2024 Jun 10; Vol. 41 (6), pp. 749-752.
DOI: 10.3760/cma.j.cn511374-20220323-00199
Abstrakt: Objective: To analyze the clinical characteristics and genetic basis of a male patient with primary infertility caused by Acephalic spermatozoa syndrome.
Methods: A patient who had presented at the Henan Provincial People's Hospital on October 1, 2022 was selected as the study subject. Clinical data and results of laboratory exams and sperm electron microscopy were collected. The patient was subjected to whole exome sequencing (WES), and candidate variants were verified by Sanger sequencing and pathogenicity analysis.
Results: WES revealed that the patient has harbored compound heterozygous variants of the PMFBP1 gene, namely c.853del (p.Ala285Leufs*24) and c.1276A>T (p.Lys426X), which were both unreported previously. Sanger sequencing suggested that the c.853del (p.Ala285Leufs*24) variant has derived from his deceased mother, whilst the c.1276A>T (p.Lys426X) variant has derived from his father. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), both variants were classified as pathogenic (PVS1+PM2_Supporting+PP4).
Conclusion: The compound heterozygous variants of the PMFBP1 gene probably underlay the Acephalic spermatozoa syndrome in this patient. The discovery of the novel variants has also enriched the mutational spectrum of Acephalic spermatozoa syndrome.
Databáze: MEDLINE