IMR Press / FBL / Volume 28 / Issue 12 / DOI: 10.31083/j.fbl2812336
Open Access Original Research
Genotypic Characterization of a Chinese Family with Osteogenesis Imperfecta and Generation of Disease-Specific Induced Pluripotent Stem Cells
Show Less
1 Clinical Medical Research Center, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), 518020 Shenzhen, Guangdong, China
2 Institute of Nephrology and Blood Purification, The First Affiliated Hospital, Jinan University, 510632 Guangzhou, Guangdong, China
3 Experimental Center, Shenzhen Pingle Orthopedic Hospital (Shenzhen Pingshan Traditional Chinese Medicine Hospital), 518118 Shenzhen, Guangdong, China
4 Central Laboratory, Guangxi Health Commission Key Laboratory of Glucose and Lipid Metabolism Disorders, The Second Affiliated Hospital of Guilin Medical University, 541199 Guilin, Guangxi, China
5 Department of Orthopedics, Department of Radiology, Shenzhen Pingshan District People’s Hospital (Pingshan General Hospital, Southern Medical University), 518110 Shenzhen, Guangdong, China
6 CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 510530 Guangzhou, Guangdong, China
7 Engineering Center for Genetic and Cellular Biotechnology, V. I. Vernadsky Crimean Federal University, 295007 Simferopol, Republic of Crimea
8 The First Affiliated Hospital, School of Medicine, Anhui University of Science and Technology, 232001 Huainan, Anhui, China
*Correspondence: 15816883398@163.com (Guoping Sun); donge66@126.com (Donge Tang); daiyong22@aliyun.com (Yong Dai)
These authors contributed equally.
Front. Biosci. (Landmark Ed) 2023, 28(12), 336; https://doi.org/10.31083/j.fbl2812336
Submitted: 19 July 2023 | Revised: 19 October 2023 | Accepted: 25 October 2023 | Published: 12 December 2023
Copyright: © 2023 The Author(s). Published by IMR Press.
This is an open access article under the CC BY 4.0 license.
Abstract

Background: Osteogenesis imperfecta (OI) is a rare genetic disorder characterized by recurring bone fractures. Some OI patients have other clinical manifestations such as growth retardation, dental abnormalities, blue sclera, and hearing loss. The relationship between the phenotype and genotype of OI is indistinct, and there is no cure for OI. Therefore, an appropriate disease model is urgently needed to understand the pathophysiology of OI. Induced pluripotent stem cells (iPSCs) are capable of developing into three germ layers and have the same genetic background as the donor cells they were derived from; thus, they are an appropriate disease model. Methods: Blood samples collected from the proband and her affected children and one unaffected child were used forgenotyping by whole genome sequencing. A patient-specific iPSC line and a healthy donor iPSC line were generated by reprogramming peripheral blood mononuclear cells with episomal plasmids containing seven transcription factors, namely, OCT4, SOX2, NANOG, LIN28, cMYC, KLF4, and SV40LT. Results: The proband and her two affected children were homozygous for a mutation in collagen type I alpha 1 exon 10, c.725G>T, predicting a p.G242V substitution. A patient-specific iPSC line and a healthy donor iPSC line were generated and characterized in terms of their human embryonic stem cell-like morphology, expression of pluripotency markers, and the ability to differentiate into cells of three germ layers. Conclusions: Here, we report the phenotyping and iPSC disease modeling of an OI family. The detailed phenotyping of the OI family and establishment of iPSCs from an OI patient and healthy family member will provide a powerful tool to evaluate the pathophysiology of OI and develop targeted therapies.

Keywords
genotyping
osteogenesis imperfecta
whole genome sequencing
collagen type I alpha 1
induced pluripotent stem cells
Funding
2017B020209001/Science and Technology Planning Project of Guangdong Province
82060393/National Natural Science Foundation of China
JCYJ20180305163846927/Science and Technology Plan of Shenzhen
2020GXNSFAA159124/Natural Science Foundation of Guangxi
2022A1515010378/Natural Science Foundation of Guangdong Province
202139/Scientific Research Project of Health System in Pingshan District of Shenzhen
201801/Scientific Research Project of Health System in Pingshan District of Shenzhen
202066/Scientific Research Project of Health System in Pingshan District of Shenzhen
202068/Scientific Research Project of Health System in Pingshan District of Shenzhen
22-15-20063/RSF
Figures
Fig. 1.
Share
Back to top