A novel mutation in the NR2E3 gene associated with Goldmann-Favre syndrome and vasoproliferative tumor of the retina

George J. Manayath, Prasanthi Namburi, Sundaresan Periasamy, Jeevan A. Kale, Venkatapathy Narendran, Anuradha Ganesh

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Purpose: Various autosomal recessive retinal dystrophies are reported to be associated with mutations in nuclear receptor subfamily 2, group E, member 3 (NR2E3, also called PNR) gene. The present study proposed to understand the clinical and genetic characteristics of the family of a patient with an ocular phenotype consistent with Goldmann-Favre syndrome (GFS) and vasoproliferative tumors of the retina (VPTRs). Methods: Twelve family members of the proband from three generations underwent complete ophthalmic examination, including best-corrected visual acuity with Snellen optotypes, tonometry, biomicroscopic examination, indirect ophthalmoscopy after pupillary dilatation, computerized perimetry, optical coherence tomography, fundus photography, intravenous fluorescein angiography, and electroretinography (ERG). All the study subjects underwent genetic analysis of the entire coding region of the NR2E3 gene with the bidirectional DNA sequencing approach. Hundred healthy individuals were screened for the variant. Results: The phenotype of the proband had features of GFS with VPTRs. The tumors showed complete resolution with cryotherapy and transpupillary thermotherapy (TTT). Sequencing of the entire coding region of the NR2E3 gene in the proband revealed a novel homozygous c.1117 A>G variant that led to the amino acid change from aspartic acid to glycine at position 406 (p.D406G). This change was present in the homozygous state in affected family members and in the heterozygous state in unaffected family members, and was undetectable in the control subjects. The identified novel p.D406G homozygous mutation was at an evolutionarily highly conserved region and may possibly affect the protein function (Sorting Intolerant From Tolerant [SIFT] score = 0.00). Conclusions: Patients with GFS may present with retinal VPTRs that respond to therapy with cryotherapy and TTT. Molecular genetic studies helped to identify a novel p.D406G mutation in the affected members, which will aid in confirming the diagnosis, for genetic counseling of family members and potentially provide some form of therapy for the affected patients.

Original languageEnglish
Pages (from-to)724-731
Number of pages8
JournalMolecular Vision
Volume20
Publication statusPublished - May 29 2014

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Retina
Mutation
Induced Hyperthermia
Cryotherapy
Genes
Neoplasms
Retinal Neoplasms
Retinal Dystrophies
Phenotype
Electroretinography
Ophthalmoscopy
Visual Field Tests
Fluorescein Angiography
Photography
Genetic Counseling
Manometry
Optical Coherence Tomography
Protein Transport
Cytoplasmic and Nuclear Receptors
DNA Sequence Analysis

ASJC Scopus subject areas

  • Ophthalmology

Cite this

A novel mutation in the NR2E3 gene associated with Goldmann-Favre syndrome and vasoproliferative tumor of the retina. / Manayath, George J.; Namburi, Prasanthi; Periasamy, Sundaresan; Kale, Jeevan A.; Narendran, Venkatapathy; Ganesh, Anuradha.

In: Molecular Vision, Vol. 20, 29.05.2014, p. 724-731.

Research output: Contribution to journalArticle

Manayath, GJ, Namburi, P, Periasamy, S, Kale, JA, Narendran, V & Ganesh, A 2014, 'A novel mutation in the NR2E3 gene associated with Goldmann-Favre syndrome and vasoproliferative tumor of the retina', Molecular Vision, vol. 20, pp. 724-731.
Manayath, George J. ; Namburi, Prasanthi ; Periasamy, Sundaresan ; Kale, Jeevan A. ; Narendran, Venkatapathy ; Ganesh, Anuradha. / A novel mutation in the NR2E3 gene associated with Goldmann-Favre syndrome and vasoproliferative tumor of the retina. In: Molecular Vision. 2014 ; Vol. 20. pp. 724-731.
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abstract = "Purpose: Various autosomal recessive retinal dystrophies are reported to be associated with mutations in nuclear receptor subfamily 2, group E, member 3 (NR2E3, also called PNR) gene. The present study proposed to understand the clinical and genetic characteristics of the family of a patient with an ocular phenotype consistent with Goldmann-Favre syndrome (GFS) and vasoproliferative tumors of the retina (VPTRs). Methods: Twelve family members of the proband from three generations underwent complete ophthalmic examination, including best-corrected visual acuity with Snellen optotypes, tonometry, biomicroscopic examination, indirect ophthalmoscopy after pupillary dilatation, computerized perimetry, optical coherence tomography, fundus photography, intravenous fluorescein angiography, and electroretinography (ERG). All the study subjects underwent genetic analysis of the entire coding region of the NR2E3 gene with the bidirectional DNA sequencing approach. Hundred healthy individuals were screened for the variant. Results: The phenotype of the proband had features of GFS with VPTRs. The tumors showed complete resolution with cryotherapy and transpupillary thermotherapy (TTT). Sequencing of the entire coding region of the NR2E3 gene in the proband revealed a novel homozygous c.1117 A>G variant that led to the amino acid change from aspartic acid to glycine at position 406 (p.D406G). This change was present in the homozygous state in affected family members and in the heterozygous state in unaffected family members, and was undetectable in the control subjects. The identified novel p.D406G homozygous mutation was at an evolutionarily highly conserved region and may possibly affect the protein function (Sorting Intolerant From Tolerant [SIFT] score = 0.00). Conclusions: Patients with GFS may present with retinal VPTRs that respond to therapy with cryotherapy and TTT. Molecular genetic studies helped to identify a novel p.D406G mutation in the affected members, which will aid in confirming the diagnosis, for genetic counseling of family members and potentially provide some form of therapy for the affected patients.",
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AU - Narendran, Venkatapathy

AU - Ganesh, Anuradha

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AB - Purpose: Various autosomal recessive retinal dystrophies are reported to be associated with mutations in nuclear receptor subfamily 2, group E, member 3 (NR2E3, also called PNR) gene. The present study proposed to understand the clinical and genetic characteristics of the family of a patient with an ocular phenotype consistent with Goldmann-Favre syndrome (GFS) and vasoproliferative tumors of the retina (VPTRs). Methods: Twelve family members of the proband from three generations underwent complete ophthalmic examination, including best-corrected visual acuity with Snellen optotypes, tonometry, biomicroscopic examination, indirect ophthalmoscopy after pupillary dilatation, computerized perimetry, optical coherence tomography, fundus photography, intravenous fluorescein angiography, and electroretinography (ERG). All the study subjects underwent genetic analysis of the entire coding region of the NR2E3 gene with the bidirectional DNA sequencing approach. Hundred healthy individuals were screened for the variant. Results: The phenotype of the proband had features of GFS with VPTRs. The tumors showed complete resolution with cryotherapy and transpupillary thermotherapy (TTT). Sequencing of the entire coding region of the NR2E3 gene in the proband revealed a novel homozygous c.1117 A>G variant that led to the amino acid change from aspartic acid to glycine at position 406 (p.D406G). This change was present in the homozygous state in affected family members and in the heterozygous state in unaffected family members, and was undetectable in the control subjects. The identified novel p.D406G homozygous mutation was at an evolutionarily highly conserved region and may possibly affect the protein function (Sorting Intolerant From Tolerant [SIFT] score = 0.00). Conclusions: Patients with GFS may present with retinal VPTRs that respond to therapy with cryotherapy and TTT. Molecular genetic studies helped to identify a novel p.D406G mutation in the affected members, which will aid in confirming the diagnosis, for genetic counseling of family members and potentially provide some form of therapy for the affected patients.

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