Autoantibodies to transient receptor potential cation channel, subfamily M, member 1 in a Japanese patient with melanoma-associated retinopathy

Yukiko Morita, Kazuhiro Kimura, Youichiro Fujitsu, Atsushi Enomoto, Shinji Ueno, Mineo Kondo, Kohei Sonoda

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Purpose: To report a case of melanoma-associated retinopathy (MAR) in a Japanese patient found to have autoantibodies to transient receptor potential cation channel, subfamily M, member 1 (TRPM1). Case: An 82-year-old man presented with blurred vision OS as well as night blindness and photopsia OU. Fundus photography, fluorescein angiography, and spectral domain-optical coherence tomography findings were essentially normal. Goldmann perimetry revealed a relative central scotoma, including the blind spot in the right eye, as well as a relative scotoma around a blind spot OS. The full-field scotopic electroretinograms showed a "negative-type" pattern OU, suggestive of extensive bipolar cell dysfunction. Systemic examination revealed that the patient had malignant melanoma of the anus with lung metastasis. Autoantibodies to TRPM1 were detected in the serum of the patient by immunoblot analysis. Vitreous opacity developed during follow-up. The visual symptoms and vitreous opacity of the patient were markedly improved after oral prednisolone therapy. The patient died as a result of widespread metastasis of the melanoma at 11 months after his first visit. Conclusion: The present case is the first reported instance of MAR positive for autoantibodies to TRPM1 in an Asian patient.

Original languageEnglish
Pages (from-to)166-171
Number of pages6
JournalJapanese Journal of Ophthalmology
Volume58
Issue number2
DOIs
Publication statusPublished - Jan 1 2014
Externally publishedYes

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Ocular Paraneoplastic Syndromes
Transient Receptor Potential Channels
Autoantibodies
Scotoma
Optic Disk
Melanoma
Night Blindness
Neoplasm Metastasis
Visual Field Tests
Fluorescein Angiography
Photography
Optical Coherence Tomography
Anal Canal
Prednisolone
Lung
Serum

All Science Journal Classification (ASJC) codes

  • Ophthalmology

Cite this

Autoantibodies to transient receptor potential cation channel, subfamily M, member 1 in a Japanese patient with melanoma-associated retinopathy. / Morita, Yukiko; Kimura, Kazuhiro; Fujitsu, Youichiro; Enomoto, Atsushi; Ueno, Shinji; Kondo, Mineo; Sonoda, Kohei.

In: Japanese Journal of Ophthalmology, Vol. 58, No. 2, 01.01.2014, p. 166-171.

Research output: Contribution to journalArticle

Morita, Yukiko ; Kimura, Kazuhiro ; Fujitsu, Youichiro ; Enomoto, Atsushi ; Ueno, Shinji ; Kondo, Mineo ; Sonoda, Kohei. / Autoantibodies to transient receptor potential cation channel, subfamily M, member 1 in a Japanese patient with melanoma-associated retinopathy. In: Japanese Journal of Ophthalmology. 2014 ; Vol. 58, No. 2. pp. 166-171.
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