Next-generation sequencing-aided precise diagnosis of Stickler syndrome type I

Acta Ophthalmol. 2020 Jun;98(4):e440-e446. doi: 10.1111/aos.14302. Epub 2019 Nov 17.


Purpose: To explore an early, rapid and precise diagnosis of Stickler syndrome type I (STL1) and to enrich the spectrum of COL2A1 mutations in the Chinese population, which is poorly studied at present.

Methods: In the current study, we analysed 115 patients with high myopia by next-generation sequencing and identified five STL1 patients from four unrelated Chinese families. The clinical features of all patients were reviewed in detail.

Results: Four variants of COL2A1 were identified, including two novel variants (c.1435delG and c.184delG) and two previously reported variants (c.1221+1G>A and c.1030C>T). Three variants caused premature termination codons which were common in STL1. In addition, we proposed a new diagnostic tactic to improve early diagnostics of STL1 in patients.

Conclusion: In this study, our findings expanded the spectrum of COL2A1 mutations with two novel variants and provided a new diagnostic tactic for reference, which was of great significance. Precise diagnosis on the basis of clinical manifestations and genetic testing will become the gold standard to diagnose inherited ocular disorders or syndromes in the future.

Keywords: COL2A1; Stickler syndrome; high myopia; next-generation sequencing; precise diagnosis; retinal detachment.

MeSH terms

  • Adult
  • Arthritis / diagnosis*
  • Arthritis / epidemiology
  • Arthritis / genetics
  • China / epidemiology
  • Collagen Type II / genetics*
  • Collagen Type II / metabolism
  • Connective Tissue Diseases / diagnosis*
  • Connective Tissue Diseases / epidemiology
  • Connective Tissue Diseases / genetics
  • DNA / analysis*
  • DNA Mutational Analysis
  • Female
  • Follow-Up Studies
  • Hearing Loss, Sensorineural / diagnosis*
  • Hearing Loss, Sensorineural / epidemiology
  • Hearing Loss, Sensorineural / genetics
  • High-Throughput Nucleotide Sequencing / methods*
  • Humans
  • Incidence
  • Male
  • Mutation*
  • Retinal Detachment / diagnosis*
  • Retinal Detachment / epidemiology
  • Retinal Detachment / genetics
  • Retrospective Studies


  • COL2A1 protein, human
  • Collagen Type II
  • DNA

Supplementary concepts

  • Stickler syndrome, type 1