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Iwasa YI, Nishio SY, Yoshimura H, Sugaya A, Kataoka Y, Maeda Y, Kanda Y, Nagai K, Naito Y, Yamazaki H, Ikezono T, Matsuda H, Nakai M, Tona R, Sakurai Y, Motegi R, Takeda H, Kobayashi M, Kihara C, Ishino T, Morita SY, Iwasaki S, Takahashi M, Furutate S, Oka SI, Kubota T, Arai Y, Kobayashi Y, Kikuchi D, Shintani T, Ogasawara N, Honkura Y, Izumi S, Hyogo M, Ninoyu Y, Suematsu M, Nakayama J, Tsuchihashi N, Okami M, Sakata H, Yoshihashi H, Kobayashi T, Kumakawa K, Yoshida T, Esaki T, Usami SI. Detailed clinical features and genotype-phenotype correlation in an OTOF-related hearing loss cohort in Japan. Hum Genet 2021; 141:865-875. [PMID: 34536124 PMCID: PMC9034993 DOI: 10.1007/s00439-021-02351-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/23/2021] [Indexed: 11/26/2022]
Abstract
Mutations in the OTOF gene are a common cause of hereditary hearing loss and the main cause of auditory neuropathy spectrum disorder (ANSD). Although it is reported that most of the patients with OTOF mutations have stable, congenital or prelingual onset severe-to-profound hearing loss, some patients show atypical clinical phenotypes, and the genotype–phenotype correlation in patients with OTOF mutations is not yet fully understood. In this study, we aimed to reveal detailed clinical characteristics of OTOF-related hearing loss patients and the genotype–phenotype correlation. Detailed clinical information was available for 64 patients in our database who were diagnosed with OTOF-related hearing loss. As reported previously, most of the patients (90.6%) showed a “typical” phenotype; prelingual and severe-to-profound hearing loss. Forty-seven patients (73.4%) underwent cochlear implantation surgery and showed successful outcomes; approximately 85–90% of the patients showed a hearing level of 20–39 dB with cochlear implant and a Categories of Auditory Performance (CAP) scale level 6 or better. Although truncating mutations and p.Arg1939Gln were clearly related to severe phenotype, almost half of the patients with one or more non-truncating mutations showed mild-to-moderate hearing loss. Notably, patients with p.His513Arg, p.Ile1573Thr and p.Glu1910Lys showed “true” auditory neuropathy-like clinical characteristics. In this study, we have clarified genotype–phenotype correlation and efficacy of cochlear implantation for OTOF-related hearing loss patients in the biggest cohort studied to date. We believe that the clinical characteristics and genotype–phenotype correlation found in this study will support preoperative counseling and appropriate intervention for OTOF-related hearing loss patients.
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Affiliation(s)
- Yoh-Ichiro Iwasa
- Department of Otorhinolaryngology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Shin-Ya Nishio
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, 3-1-1, Asahi, Matsumoto City, 390-8621, Japan
| | - Hidekane Yoshimura
- Department of Otorhinolaryngology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Akiko Sugaya
- Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yuko Kataoka
- Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yukihide Maeda
- Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yukihiko Kanda
- Kanda ENT Clinic, Nagasaki Bell Hearing Center, Nagasaki, Japan
| | - Kyoko Nagai
- TAKASAKI Ear Nose and Throat Clinic, Takasaki, Japan
| | - Yasushi Naito
- Department of Otolaryngology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Hiroshi Yamazaki
- Department of Otolaryngology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Tetsuo Ikezono
- Department of Otorhinolaryngology, Saitama School of Medicine, Moroyama, Japan
| | - Han Matsuda
- Department of Otorhinolaryngology, Saitama School of Medicine, Moroyama, Japan
| | | | - Risa Tona
- Shiga Medical Center for Children, Shiga, Japan
| | - Yuika Sakurai
- Department of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan
| | - Remi Motegi
- Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Hidehiko Takeda
- Department of Otorhinolaryngology, Toranomon Hospital, Tokyo, Japan
| | - Marina Kobayashi
- Department of Otorhinolaryngology, Toranomon Hospital, Tokyo, Japan
| | - Chiharu Kihara
- Department of Otolaryngology-Head and Neck Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takashi Ishino
- Department of Otorhinolaryngology, Head and Neck Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - Shin-Ya Morita
- Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Satoshi Iwasaki
- Department of Otorhinolaryngology, International University of Health and Welfare, Mita Hospital, Tokyo, Japan
| | - Masahiro Takahashi
- Department of Otorhinolaryngology, International University of Health and Welfare, Mita Hospital, Tokyo, Japan
| | - Sakiko Furutate
- Department of Otorhinolaryngology, International University of Health and Welfare, Mita Hospital, Tokyo, Japan
| | - Shin-Ichiro Oka
- Department of Otorhinolaryngology, International University of Health and Welfare, Mita Hospital, Tokyo, Japan
| | - Toshinori Kubota
- Department of Otolaryngology, Head and Neck Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Yasuhiro Arai
- Department of Otorhinolaryngology-Head and Neck Surgery, Yokohama City University School of Medicine, Yokohama, Japan
| | - Yumiko Kobayashi
- Department of Otolaryngology-Head and Neck Surgery, Iwate Medical University, Morioka, Japan
| | - Daisuke Kikuchi
- Department of Otolaryngology, Fukushima Medical University, Fukushima, Japan
| | - Tomoko Shintani
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Noriko Ogasawara
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yohei Honkura
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine, Sendai, Japan
| | - Shuji Izumi
- Department of Otolaryngology Head and Neck Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Misako Hyogo
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuzuru Ninoyu
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mayumi Suematsu
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Jun Nakayama
- Department of Otorhinolaryngology, Shiga University School of Medical Science, Otsu, Japan
| | - Nana Tsuchihashi
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mayuri Okami
- Department of Otorhinolaryngology, Tokai University School of Medicine, Isehara, Japan
| | | | - Hiroshi Yoshihashi
- Department of Medical Genetics, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Taisuke Kobayashi
- Department of Otolaryngology, Kochi University Medical School, Kochi, Japan
| | - Kozo Kumakawa
- Department of Otolaryngology, Kamio Memorial Hospital, Tokyo, Japan
| | - Tadao Yoshida
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoko Esaki
- Department of Otolaryngology, Aichi Children's Health and Medical Center, Obu, Japan
| | - Shin-Ichi Usami
- Department of Hearing Implant Sciences, Shinshu University School of Medicine, 3-1-1, Asahi, Matsumoto City, 390-8621, Japan.
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