Genetic characterization of 1210 Japanese pedigrees with inherited retinal diseases by whole-exome sequencing

Akiko Suga, Kazutoshi Yoshitake, Naoko Minematsu, Kazushige Tsunoda, Kaoru Fujinami, Yozo Miyake, Kazuki Kuniyoshi, Takaaki Hayashi, Kei Mizobuchi, Shinji Ueno, Hiroko Terasaki, Taro Kominami, Nobuhisa Nao-I, Go Mawatari, Atsushi Mizota, Kei Shinoda, Mineo Kondo, Kumiko Kato, Tetsuju Sekiryu, Makoto NakamuraSentaro Kusuhara, Hiroyuki Yamamoto, Shuji Yamamoto, Kiyofumi Mochizuki, Hiroyuki Kondo, Itsuka Matsushita, Shuhei Kameya, Takeo Fukuchi, Tetsuhisa Hatase, Masayuki Horiguchi, Yoshiaki Shimada, Atsuhiro Tanikawa, Shuichi Yamamoto, Gen Miura, Nana Ito, Akira Murakami, Takuro Fujimaki, Yoshihiro Hotta, Koji Tanaka, Takeshi Iwata

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Inherited retinal diseases (IRDs) comprise a phenotypically and genetically heterogeneous group of ocular disorders that cause visual loss via progressive retinal degeneration. Here, we report the genetic characterization of 1210 IRD pedigrees enrolled through the Japan Eye Genetic Consortium and analyzed by whole exome sequencing. The most common phenotype was retinitis pigmentosa (RP, 43%), followed by macular dystrophy/cone- or cone-rod dystrophy (MD/CORD, 13%). In total, 67 causal genes were identified in 37% (448/1210) of the pedigrees. The first and second most frequently mutated genes were EYS and RP1, associated primarily with autosomal recessive (ar) RP, and RP and arMD/CORD, respectively. Examinations of variant frequency in total and by phenotype showed high accountability of a frequent EYS missense variant (c.2528G>A). In addition to the two known EYS founder mutations (c.4957dupA and c.8805C>G) of arRP, we observed a frequent RP1 variant (c.5797C>T) in patients with arMD/CORD.

Original languageEnglish
Pages (from-to)2251-2264
Number of pages14
JournalHuman Mutation
Volume43
Issue number12
DOIs
Publication statusPublished - 12-2022
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Genetics
  • Genetics(clinical)

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