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Zhang T, Xu Z, Zheng D, Wang X, He J, Zhang L, Zallocchi M. Novel biallelic variants in the PLEC gene are associated with severe hearing loss. Hear Res 2023; 436:108831. [PMID: 37393735 DOI: 10.1016/j.heares.2023.108831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 05/18/2023] [Accepted: 06/13/2023] [Indexed: 07/04/2023]
Abstract
Pediatric auditory neuropathy spectrum disorder is a particular type of hearing loss caused by abnormal sound transmission from the cochlea to the brain. It is due to defective peripheral synaptic function or improper neuronal conduction. Using trio whole-exome sequencing, we have identified novel biallelic variants in the PLEC gene in three individuals with profound deafness from two unrelated families. Among them, one pediatric patient diagnosed with auditory neuropathy spectrum disorder had a good cochlear implantation outcome. The other two adult patients were diagnosed with non-syndromic hearing loss. Studies in mice and zebrafish confirmed that plectin is developmentally expressed in the inner ear. Moreover, plectin's knockdown resulted in a reduction of synaptic mitochondrial potential and loss of ribbon synapses, reinforcing the idea of a role for plectin in neuronal transmission. Altogether, the results presented here, point to a new unconventional role for plectin in the inner ear. Contrary to the well-characterized association of plectin to skin and muscle diseases, we found that specific plectin mutations can result in hearing loss with no other clinical manifestations. This is important because 1) it provides evidence of plectin's involvement in inner ear function and 2) it will help clinicians at the time of diagnosis and treatment.
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Affiliation(s)
- Tianyang Zhang
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China; Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Zhenhang Xu
- Department of Biomedical Sciences, School of Medicine, Creighton University, Omaha, United States; Department of Otolaryngology, Xiangya Hospital, Central South University, Changsha, China.
| | - Danya Zheng
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China.
| | - Xuechun Wang
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China.
| | - Jingchun He
- Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Luping Zhang
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, China.
| | - Marisa Zallocchi
- Department of Biomedical Sciences, School of Medicine, Creighton University, Omaha, United States.
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2
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Aldè M, Cantarella G, Zanetti D, Pignataro L, La Mantia I, Maiolino L, Ferlito S, Di Mauro P, Cocuzza S, Lechien JR, Iannella G, Simon F, Maniaci A. Autosomal Dominant Non-Syndromic Hearing Loss (DFNA): A Comprehensive Narrative Review. Biomedicines 2023; 11:1616. [PMID: 37371710 DOI: 10.3390/biomedicines11061616] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
Autosomal dominant non-syndromic hearing loss (HL) typically occurs when only one dominant allele within the disease gene is sufficient to express the phenotype. Therefore, most patients diagnosed with autosomal dominant non-syndromic HL have a hearing-impaired parent, although de novo mutations should be considered in all cases of negative family history. To date, more than 50 genes and 80 loci have been identified for autosomal dominant non-syndromic HL. DFNA22 (MYO6 gene), DFNA8/12 (TECTA gene), DFNA20/26 (ACTG1 gene), DFNA6/14/38 (WFS1 gene), DFNA15 (POU4F3 gene), DFNA2A (KCNQ4 gene), and DFNA10 (EYA4 gene) are some of the most common forms of autosomal dominant non-syndromic HL. The characteristics of autosomal dominant non-syndromic HL are heterogenous. However, in most cases, HL tends to be bilateral, post-lingual in onset (childhood to early adulthood), high-frequency (sloping audiometric configuration), progressive, and variable in severity (mild to profound degree). DFNA1 (DIAPH1 gene) and DFNA6/14/38 (WFS1 gene) are the most common forms of autosomal dominant non-syndromic HL affecting low frequencies, while DFNA16 (unknown gene) is characterized by fluctuating HL. A long audiological follow-up is of paramount importance to identify hearing threshold deteriorations early and ensure prompt treatment with hearing aids or cochlear implants.
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Affiliation(s)
- Mirko Aldè
- Department of Clinical Sciences and Community Health, University of Milan, 20090 Milan, Italy
- Department of Specialist Surgical Sciences, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20090 Milan, Italy
- Otology Study Group of the Young-Otolaryngologists of the International Federations of Oto-Rhino-Laryngological Societies (YO-IFOS), 75000 Paris, France
| | - Giovanna Cantarella
- Department of Clinical Sciences and Community Health, University of Milan, 20090 Milan, Italy
- Department of Specialist Surgical Sciences, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20090 Milan, Italy
| | - Diego Zanetti
- Department of Clinical Sciences and Community Health, University of Milan, 20090 Milan, Italy
- Department of Specialist Surgical Sciences, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20090 Milan, Italy
| | - Lorenzo Pignataro
- Department of Clinical Sciences and Community Health, University of Milan, 20090 Milan, Italy
- Department of Specialist Surgical Sciences, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20090 Milan, Italy
| | - Ignazio La Mantia
- Department of Medical, Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, 95123 Catania, Italy
| | - Luigi Maiolino
- Department of Medical, Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, 95123 Catania, Italy
| | - Salvatore Ferlito
- Department of Medical, Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, 95123 Catania, Italy
| | - Paola Di Mauro
- Department of Medical, Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, 95123 Catania, Italy
| | - Salvatore Cocuzza
- Department of Medical, Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, 95123 Catania, Italy
| | - Jérôme René Lechien
- Otology Study Group of the Young-Otolaryngologists of the International Federations of Oto-Rhino-Laryngological Societies (YO-IFOS), 75000 Paris, France
| | - Giannicola Iannella
- Otology Study Group of the Young-Otolaryngologists of the International Federations of Oto-Rhino-Laryngological Societies (YO-IFOS), 75000 Paris, France
| | - Francois Simon
- Otology Study Group of the Young-Otolaryngologists of the International Federations of Oto-Rhino-Laryngological Societies (YO-IFOS), 75000 Paris, France
| | - Antonino Maniaci
- Otology Study Group of the Young-Otolaryngologists of the International Federations of Oto-Rhino-Laryngological Societies (YO-IFOS), 75000 Paris, France
- Department of Medical, Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, 95123 Catania, Italy
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3
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Wu J, Tao Y, Deng D, Meng Z, Zhao Y. The applications of CRISPR/Cas-mediated genome editing in genetic hearing loss. Cell Biosci 2023; 13:93. [PMID: 37210555 DOI: 10.1186/s13578-023-01021-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/25/2023] [Indexed: 05/22/2023] Open
Abstract
Hearing loss (HL) can be caused by a number of different genetic factors. Non-syndromic HL refers that HL occurs as an isolated symptom in an individual, whereas syndromic HL refers that HL is associated with other symptoms or abnormalities. To date, more than 140 genes have been identified as being associated with non-syndromic HL, and approximately 400 genetic syndromes can include HL as one of the clinical symptoms. However, no gene therapeutic approaches are currently available to restore or improve hearing. Therefore, there is an urgent necessity to elucidate the possible pathogenesis of specific mutations in HL-associated genes and to investigate the promising therapeutic strategies for genetic HL. The development of the CRISPR/Cas system has revolutionized the field of genome engineering, which has become an efficacious and cost-effective tool to foster genetic HL research. Moreover, several in vivo studies have demonstrated the therapeutic efficacy of the CRISPR/Cas-mediated treatments for specific genetic HL. In this review, we briefly introduce the progress in CRISPR/Cas technique as well as the understanding of genetic HL, and then we detail the recent achievements of CRISPR/Cas technique in disease modeling and therapeutic strategies for genetic HL. Furthermore, we discuss the challenges for the application of CRISPR/Cas technique in future clinical treatments.
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Affiliation(s)
- Junhao Wu
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital of Sichuan University, Chengdu, 610041, China
- Department of Audiology and Speech Language Pathology, West China Hospital of Sichuan University, Chengdu, China
| | - Yong Tao
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital of Sichuan University, Chengdu, 610041, China
- Department of Audiology and Speech Language Pathology, West China Hospital of Sichuan University, Chengdu, China
| | - Di Deng
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital of Sichuan University, Chengdu, 610041, China
- Department of Audiology and Speech Language Pathology, West China Hospital of Sichuan University, Chengdu, China
| | - Zhaoli Meng
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital of Sichuan University, Chengdu, 610041, China.
- Department of Audiology and Speech Language Pathology, West China Hospital of Sichuan University, Chengdu, China.
| | - Yu Zhao
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital of Sichuan University, Chengdu, 610041, China.
- Department of Audiology and Speech Language Pathology, West China Hospital of Sichuan University, Chengdu, China.
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Li Y, Ning G, Kang B, Zhu J, Wang XY, Wang Q, Cai T. A novel recessive mutation in OXR1 is identified in patient with hearing loss recapitulated by the knockdown zebrafish. Hum Mol Genet 2023; 32:764-772. [PMID: 36130215 PMCID: PMC10365843 DOI: 10.1093/hmg/ddac229] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/23/2022] [Accepted: 09/03/2022] [Indexed: 11/14/2022] Open
Abstract
Hereditary hearing loss is a highly genetically heterogeneous disorder. More than 150 genes have been identified to link to human non-syndromic hearing impairment. To identify genetic mutations and underlying molecular mechanisms in affected individuals and families with congenital hearing loss, we recruited a cohort of 389 affected individuals in 354 families for whole-exome sequencing analysis. In this study, we report a novel homozygous missense variant (c.233A > G, p.Lys78Arg) in the OXR1 gene, which was identified in a 4-year-old girl with sensorineural hearing loss. OXR1 encodes Oxidation Resistance 1 and is evolutionarily conserved from zebrafish to human. We found that the ortholog oxr1b gene is expressed in the statoacoustic ganglion (SAG, a sensory ganglion of ear) and posterior lateral line ganglion (pLL) in zebrafish. Knockdown of oxr1b in zebrafish resulted in a significant developmental defect of SAG and pLL. This phenotype can be rescued by co-injection of wild-type human OXR1 mRNAs, but not mutant OXR1 (c.233A > G) mRNAs. OXR1-associated pathway analysis revealed that mutations of TBC1D24, a TLDc-domain-containing homolog gene of OXR1, have previously been identified in patients with hearing loss. Interestingly, mutations or knockout of OXR1 interacting molecules such as ATP6V1B1 and ESR1 are also associated with hearing loss in patients or animal models, hinting an important role of OXR1 and associated partners in cochlear development and hearing function.
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Affiliation(s)
- Yuan Li
- Department of Otorhinolaryngology, China-Japan Friendship Hospital, Beijing 1000292, China
| | - Guozhu Ning
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 5100063, China
- State Key Laboratory of Membrane Biology, Institute of Zoology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 1001014, China
| | - Baoling Kang
- Bioinformatics Section, Angen Gene Medicine Technology, Beijing 1001765, China
| | - Jinwen Zhu
- Bioinformatics Section, Angen Gene Medicine Technology, Beijing 1001765, China
| | | | - Qiang Wang
- Division of Cell, Developmental and Integrative Biology, School of Medicine, South China University of Technology, Guangzhou 5100063, China
| | - Tao Cai
- Experimental Medicine Section, National Institute of Dental and Craniofacial Research, NIH, Bethesda, MD 208927, USA
- Laboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA
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5
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ftr82 is necessary for hair cell morphogenesis and auditory function during zebrafish development. J Genet Genomics 2023; 50:77-86. [PMID: 36464225 DOI: 10.1016/j.jgg.2022.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/27/2022] [Accepted: 11/18/2022] [Indexed: 12/04/2022]
Abstract
Damages of sensory hair cells (HCs) are mainly responsible for sensorineural hearing loss, while the pathological mechanism remains not fully understood due to the many potential deafness genes unidentified. ftr82, a member of the largely TRIMs family in fish, has been found specifically expressed in the otic vesicle while its function is still unclear. Here, we investigate the roles of ftr82 in HC development and hearing function utilizing the zebrafish model. The results of in situ hybridization illustrate that ftr82 is always restricted to localize in otic vesicles at different stages. The defects of HCs are observed both in ftr82 morphants and mutants, including significantly decreased crista HCs, shortened cilia as well as remarkably reduced functional HCs in neuromasts, which could be successfully rescued by co-injection of exogenous ftr82 mRNA. The behavior assay of startle response indicates that larvae lacking of ftr82 exhibits lower sensitivity to external sound stimuli. Further research reveals that the loss of HCs is mainly caused by cell apoptosis mediated by caspase-3 activation. Our study demonstrates that ftr82 is a crucial hearing-related gene that regulates the HC morphogenesis and auditory function performing, which provides new insight into the rapid identification of the deafness gene.
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Wang J, Zheng J, Wang H, He H, Li S, Zhang Y, Wang Y, Xu X, Wang S. Gene therapy: an emerging therapy for hair cells regeneration in the cochlea. Front Neurosci 2023; 17:1177791. [PMID: 37207182 PMCID: PMC10188948 DOI: 10.3389/fnins.2023.1177791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/12/2023] [Indexed: 05/21/2023] Open
Abstract
Sensorineural hearing loss is typically caused by damage to the cochlear hair cells (HCs) due to external stimuli or because of one's genetic factors and the inability to convert sound mechanical energy into nerve impulses. Adult mammalian cochlear HCs cannot regenerate spontaneously; therefore, this type of deafness is usually considered irreversible. Studies on the developmental mechanisms of HC differentiation have revealed that nonsensory cells in the cochlea acquire the ability to differentiate into HCs after the overexpression of specific genes, such as Atoh1, which makes HC regeneration possible. Gene therapy, through in vitro selection and editing of target genes, transforms exogenous gene fragments into target cells and alters the expression of genes in target cells to activate the corresponding differentiation developmental program in target cells. This review summarizes the genes that have been associated with the growth and development of cochlear HCs in recent years and provides an overview of gene therapy approaches in the field of HC regeneration. It concludes with a discussion of the limitations of the current therapeutic approaches to facilitate the early implementation of this therapy in a clinical setting.
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Affiliation(s)
- Jipeng Wang
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jianwei Zheng
- Department of Biliary-Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haiyan Wang
- Department of Otolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Haoying He
- Department of Neurology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Shuang Li
- Department of Otolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ya Zhang
- Department of Otolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - You Wang
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- *Correspondence: You Wang,
| | - Xiaoxiang Xu
- Department of Otolaryngology-Head and Neck Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
- Xiaoxiang Xu,
| | - Shuyi Wang
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
- Shuyi Wang,
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7
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Wu X, Wang L, Li Z. Identification of 3-Phenylquinoline Derivative PQ1 as an Antagonist of p53 Transcriptional Activity. ACS OMEGA 2022; 7:43180-43189. [PMID: 36467924 PMCID: PMC9713874 DOI: 10.1021/acsomega.2c05891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 11/01/2022] [Indexed: 06/17/2023]
Abstract
Transcription factor p53 regulates cellular responses to environmental perturbations via the transcriptional activation of downstream target genes. Inappropriate p53 activation can trigger abnormal cellular responses, therefore leading to acute or chronic tissue damage, human developmental syndromes, and neurodegenerative diseases. Antagonists of p53 transcriptional activity provide prospective therapeutic applications and molecular probes. In this article, we identified five 3-phenylquinoline derivatives as potential p53 inhibitors through screening a chemical library consisting of 120 compounds, in which PQ1 was the most active compound. PQ1 had no effect on p53 protein levels and decreased the expression of p53 target gene p21. PQ1 thermally stabilizes the wild-type p53 protein. Further, transcriptomics confirmed that PQ1 exposure generated a similar regulatory effect to transcription profiles with a reported p53 transcriptional inhibitor pifithrin-α. However, compared to pifithrin-α, PQ1 increased the sensitivity of SW480 cells to 5FU. Taken together, PQ1 was a novel antagonist of p53 transcriptional activity. We propose that PQ1 could be developed as a chemical tool to pinpoint the physiological functions of p53 and a novel lead compound for targeting dysfunctional p53 activation.
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Affiliation(s)
- Xingkang Wu
- Modern
Research Center for Traditional Chinese Medicine, The Key Laboratory
of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, No. 92, Wucheng Road, Taiyuan 030006, Shanxi, P. R. China
- Key
Laboratory of Effective Substances Research and Utilization in TCM
of Shanxi Province, No.
92, Wucheng Road, Taiyuan 030006, Shanxi, P.
R. China
- Shanxi
Key Laboratory of Redevelopment of Famous Local Traditional Chinese
Medicines, No. 92, Wucheng
Road, Taiyuan 030006, Shanxi, P. R. China
| | - Lu Wang
- Modern
Research Center for Traditional Chinese Medicine, The Key Laboratory
of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, No. 92, Wucheng Road, Taiyuan 030006, Shanxi, P. R. China
| | - Zhenyu Li
- Department
of Pharmacy, Shandong Provincial Hospital
Affiliated to Shandong First Medical University, Jinan 250021, Shandong, P. R. China
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8
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SLC26A4 Mutation Promotes Cell Apoptosis by Inducing Pendrin Transfer, Reducing Cl- Transport, and Inhibiting PI3K/Akt/mTOR Pathway. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6496799. [PMID: 36072472 PMCID: PMC9444440 DOI: 10.1155/2022/6496799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 08/03/2022] [Indexed: 11/18/2022]
Abstract
Objective. Pendrin is encoded by SLC26A4, which is expressed in the apical membrane of inner ear epithelial cells and drives chloride reabsorption in the apical septum. In the inner ear, pendrin dysfunction and hypofunctional mutations lead to vestibular aqueduct (EVA) enlargement and sensory neural hearing loss. Mutations in SLC26A4 are a common reason of deafness. However, the underlying mechanisms of SLC26A4 mutants in hearing loss remain unknown. Methods. In the present study, pEGFP-N1 carrying wild-type and mutant SLC26A4 (c.85G>A, c.2006A>T, and c.853G>A) were transfected into HEK-293T cells. GFP fluorescence and GFP levels were determined. SLC26A4 mRNA levels were examined by quantitative real-time polymerase chain reaction (qRT-PCR). Then, the expression of chloride intracellular channel 1 (CLIC1) and CLIC2 was measured by Immunofluorescence assay. Intracellular chloride concentration and apoptotic rate were analyzed by flow cytometry. The levels of membrane/cytoplasmic pendrin, apoptosis-associated proteins, and the PI3K/Akt/mTOR pathway members were determined by Western blot. Results. Constructed SLC26A4 mutant 1 (c.85G>A), SLC26A4 mutant 2 (c.2006A>T), and SLC26A4 mutant 3 (c.853G>A). The wild-type and 3 mutations were stably expressed in HEK-293T. SLC26A4 mRNA expression was significantly increased after transfection with wild-type SLC26A4 and mutant SLC26A4 compared with the untransfected vector group (
). Compared with the vector group, the expression levels of membrane pendrin, cytoplasmic pendrin, CLIC1, CLIC2, Bcl-2, p-PI3K, p-Akt, and p-mTOR were upregulated. Compared with the vector group, the chloride concentration, cell apoptotic rate, and the expression levels of caspase-3, caspase-9, and Bax were downregulated. Compared with the vector group, the above effects of SLC26A4 were reversed after the SLC26A4 mutant. Conclusion. After SLC26A4 mutation, pendrin was transferred from the membrane, the chloride intracellular channel function was reduced, and the excessive accumulation of chloride in the cytoplasm induced cell apoptosis by inhibited PI3K/Akt/mTOR pathway phosphorylation.
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Xu Z, Tu S, Pass C, Zhang Y, Liu H, Diers J, Fu Y, He DZZ, Zuo J. Profiling mouse cochlear cell maturation using 10× Genomics single-cell transcriptomics. Front Cell Neurosci 2022; 16:962106. [PMID: 36060279 PMCID: PMC9434313 DOI: 10.3389/fncel.2022.962106] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 07/26/2022] [Indexed: 11/13/2022] Open
Abstract
Juvenile and mature mouse cochleae contain various low-abundant, vulnerable sensory epithelial cells embedded in the calcified temporal bone, making it challenging to profile the dynamic transcriptome changes of these cells during maturation at the single-cell level. Here we performed the 10x Genomics single-cell RNA sequencing (scRNA-seq) of mouse cochleae at postnatal days 14 (P14) and 28. We attained the transcriptomes of multiple cell types, including hair cells, supporting cells, spiral ganglia, stria fibrocytes, and immune cells. Our hair cell scRNA-seq datasets are consistent with published transcripts from bulk RNA-seq. We also mapped known deafness genes to corresponding cochlear cell types. Importantly, pseudotime trajectory analysis revealed that inner hair cell maturation peaks at P14 while outer hair cells continue development until P28. We further identified and confirmed a long non-coding RNA gene Miat to be expressed during maturation in cochlear hair cells and spiral ganglia neurons, and Pcp4 to be expressed during maturation in cochlear hair cells. Our transcriptomes of juvenile and mature mouse cochlear cells provide the sequel to those previously published at late embryonic and early postnatal ages and will be valuable resources to investigate cochlear maturation at the single-cell resolution.
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Affiliation(s)
- Zhenhang Xu
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE, United States
| | - Shu Tu
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE, United States
| | - Caroline Pass
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE, United States
| | - Yan Zhang
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE, United States
| | - Huizhan Liu
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE, United States
| | - Jack Diers
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE, United States
| | - Yusi Fu
- Lynch Comprehensive Cancer Research Center, Creighton University School of Medicine, Omaha, NE, United States
| | - David Z. Z. He
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE, United States
| | - Jian Zuo
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE, United States
- *Correspondence: Jian Zuo,
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10
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Qian F, Wei G, Gao Y, Wang X, Gong J, Guo C, Wang X, Zhang X, Zhao J, Wang C, Xu M, Hu Y, Yin G, Kang J, Chai R, Xie G, Liu D. Single-cell RNA-sequencing of zebrafish hair cells reveals novel genes potentially involved in hearing loss. Cell Mol Life Sci 2022; 79:385. [PMID: 35753015 PMCID: PMC11072488 DOI: 10.1007/s00018-022-04410-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 05/18/2022] [Accepted: 06/01/2022] [Indexed: 01/22/2023]
Abstract
Hair cells play key roles in hearing and balance, and hair cell loss would result in hearing loss or vestibular dysfunction. Cellular and molecular research in hair cell biology provides us a better understanding of hearing and deafness. Zebrafish, owing to their hair cell-enriched organs, have been widely applied in hair cell-related research worldwide. Similar to mammals, zebrafish have inner ear hair cells. In addition, they also have lateral line neuromast hair cells. These different types of hair cells vary in morphology and function. However, systematic analysis of their molecular characteristics remains lacking. In this study, we analyzed the GFP+ cells isolated from Tg(Brn3c:mGFP) larvae with GFP expression in all hair cells using single-cell RNA-sequencing (scRNA-seq). Three subtypes of hair cells, namely macula hair cell (MHC), crista hair cell (CHC), and neuromast hair cell (NHC), were characterized and validated by whole-mount in situ hybridization analysis of marker genes. The hair cell scRNA-seq data revealed hair cell-specific genes, including hearing loss genes that have been identified in humans and novel genes potentially involved in hair cell formation and function. Two novel genes were discovered to specifically function in NHCs and MHCs, corresponding to their specific expression in NHCs and MHCs. This study allows us to understand the specific genes in hair cell subpopulations of zebrafish, which will shed light on the genetics of both human vestibular and cochlear hair cell function.
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Affiliation(s)
- Fuping Qian
- School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, 226019, China
| | - Guanyun Wei
- School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, 226019, China
| | - Yajing Gao
- Co-Innovation Center of Neuroregeneration, School of Life SciencesKey Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, 226019, China
| | - Xin Wang
- Co-Innovation Center of Neuroregeneration, School of Life SciencesKey Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, 226019, China
| | - Jie Gong
- School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, 226019, China
| | - Chao Guo
- School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, 226019, China
| | - Xiaoning Wang
- Co-Innovation Center of Neuroregeneration, School of Life SciencesKey Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, 226019, China
| | - Xu Zhang
- Co-Innovation Center of Neuroregeneration, School of Life SciencesKey Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, 226019, China
| | - Jinxiang Zhao
- Co-Innovation Center of Neuroregeneration, School of Life SciencesKey Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, 226019, China
| | - Cheng Wang
- School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, 226019, China
| | - Mengting Xu
- Co-Innovation Center of Neuroregeneration, School of Life SciencesKey Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, 226019, China
| | - Yuebo Hu
- Co-Innovation Center of Neuroregeneration, School of Life SciencesKey Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, 226019, China
| | - Guoli Yin
- Co-Innovation Center of Neuroregeneration, School of Life SciencesKey Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, 226019, China
| | - Jiahui Kang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, 226001, China
| | - Renjie Chai
- Co-Innovation Center of Neuroregeneration, School of Life SciencesKey Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, 226019, China.
- State Key Laboratory of Bioelectronics, Co-Innovation Center of Neuroregeneration, Department of Otolaryngology Head and Neck Surgery, Zhongda Hospital, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, School of Life Science and Technology, Southeast University, Nanjing, 210096, China.
- Institute for Stem Cell and Regeneration, Chinese Academy of Science, Beijing, 100864, China.
- Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing, 100069, China.
- Department of Otolaryngology Head and Neck Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China.
| | - Gangcai Xie
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, 226001, China.
| | - Dong Liu
- School of Life Sciences, Nantong Laboratory of Development and Diseases, Nantong University, Nantong, 226019, China.
- Co-Innovation Center of Neuroregeneration, School of Life SciencesKey Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, 226019, China.
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11
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Liu YH, Jiang YH, Li CC, Chen XM, Huang LG, Zhang M, Ruan B, Wang XC. Involvement of the SIRT1/PGC-1α Signaling Pathway in Noise-Induced Hidden Hearing Loss. Front Physiol 2022; 13:798395. [PMID: 35620603 PMCID: PMC9127058 DOI: 10.3389/fphys.2022.798395] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 04/18/2022] [Indexed: 12/06/2022] Open
Abstract
Objective: To establish an animal model of noise-induced hidden hearing loss (NIHHL), evaluate the dynamic changes in cochlear ribbon synapses and cochlear hair cell morphology, and observe the involvement of the SIRT1/PGC-1α signaling pathway in NIHHL.Methods: Male guinea pigs were randomly divided into three groups: control group, noise exposure group, and resveratrol treatment group. Each group was divided into five subgroups: the control group and 1 day, 1 week, 2 weeks, and 1 month post noise exposure groups. The experimental groups received noise stimulation at 105 dB SPL for 2 h. Hearing levels were examined by auditory brainstem response (ABR). Ribbon synapses were evaluated by inner ear basilar membrane preparation and immunofluorescence. The cochlear morphology was observed using scanning electron microscopy. Western blotting analysis and immunofluorescence was performed to assess the change of SIRT1/PGC-1α signaling. Levels of superoxide dismutase (SOD), malondialdehyde (MDA), catalase (CAT), ATP and SIRT1 activity were measured using commercial testing kits.Results: In the noise exposure group, hearing threshold exhibited a temporary threshold shift (TTS), and amplitude of ABR wave I decreased irreversibly. Ribbon synapse density decreased after noise exposure, and the stereocilia were chaotic and then returned to normal. The expression and activity of SIRT1 and PGC-1α protein was lower than that in the control group. SOD, CAT and ATP were also influenced by noise exposure and were lower than those in the control group, but MDA showed no statistical differences compared with the control group. After resveratrol treatment, SIRT1 expression and activity showed a significant increase after noise exposure, compared with the noise exposure group. In parallel, the PGC-1α and antioxidant proteins were also significantly altered after noise exposure, compared with the noise exposure group. The damage to the ribbon synapses and the stereocilia were attenuated by resveratrol as well. More importantly, the auditory function, especially ABR wave I amplitudes, was also promoted in the resveratrol treatment group.Conclusion: The SIRT1/PGC-1α signaling pathway and oxidative stress are involved in the pathogenesis of NIHHL and could be potential therapeutical targets in the future.
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Affiliation(s)
- Yu-Hui Liu
- Center of Clinical Aerospace Medicine, School of Aerospace Medicine, Key Laboratory of Aerospace Medicine of Ministry of Education, Air Force Medical University, Xi’an, China
- Department of Avation Medicine, Xi-Jing Hospital, Air Force Military Medical University, Xi’an, China
| | - Yi-Hong Jiang
- Center of Clinical Aerospace Medicine, School of Aerospace Medicine, Key Laboratory of Aerospace Medicine of Ministry of Education, Air Force Medical University, Xi’an, China
- Department of Avation Medicine, Xi-Jing Hospital, Air Force Military Medical University, Xi’an, China
| | - Cong-Cong Li
- Center of Clinical Aerospace Medicine, School of Aerospace Medicine, Key Laboratory of Aerospace Medicine of Ministry of Education, Air Force Medical University, Xi’an, China
- Department of Avation Medicine, Xi-Jing Hospital, Air Force Military Medical University, Xi’an, China
| | - Xue-Min Chen
- Medical School of Chinese PLA, Beijing, China
- Senior Department of Otolaryngology-Head and Neck Surgery, The Sixth Medical Center, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, State Key Lab of Hearing Science, Ministry of Education, Beijing, China
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, China
| | - Li-Gui Huang
- The 908th Hospital of Joint Logistics Support Force of PLA, Nanchang, China
| | - Min Zhang
- Center of Clinical Aerospace Medicine, School of Aerospace Medicine, Key Laboratory of Aerospace Medicine of Ministry of Education, Air Force Medical University, Xi’an, China
- Department of Avation Medicine, Xi-Jing Hospital, Air Force Military Medical University, Xi’an, China
- *Correspondence: Xiao-Cheng Wang, ; Bai Ruan, ; Min Zhang,
| | - Bai Ruan
- Center of Clinical Aerospace Medicine, School of Aerospace Medicine, Key Laboratory of Aerospace Medicine of Ministry of Education, Air Force Medical University, Xi’an, China
- Department of Avation Medicine, Xi-Jing Hospital, Air Force Military Medical University, Xi’an, China
- *Correspondence: Xiao-Cheng Wang, ; Bai Ruan, ; Min Zhang,
| | - Xiao-Cheng Wang
- Center of Clinical Aerospace Medicine, School of Aerospace Medicine, Key Laboratory of Aerospace Medicine of Ministry of Education, Air Force Medical University, Xi’an, China
- Department of Avation Medicine, Xi-Jing Hospital, Air Force Military Medical University, Xi’an, China
- *Correspondence: Xiao-Cheng Wang, ; Bai Ruan, ; Min Zhang,
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12
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Mei H, Mei D, Sun S, Zhang Y, Li H. Bioinformatic Identification of Key Genes Leading to Increased Mitochondrial Mass in Cochlear Hair Cells. CYTOLOGIA 2022. [DOI: 10.1508/cytologia.87.59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Honglin Mei
- ENT Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, NHC Key Laboratory of Hearing Medicine, Fudan University
| | - Dongmei Mei
- Department of Oral Implantology, the Affiliated Hospital of Qingdao University
| | - Shan Sun
- ENT Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, NHC Key Laboratory of Hearing Medicine, Fudan University
| | - Yanping Zhang
- ENT Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, NHC Key Laboratory of Hearing Medicine, Fudan University
| | - Huawei Li
- ENT Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, NHC Key Laboratory of Hearing Medicine, Fudan University
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13
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Multiplexed Genome Editing for Efficient Phenotypic Screening in Zebrafish. Vet Sci 2022; 9:vetsci9020092. [PMID: 35202345 PMCID: PMC8879510 DOI: 10.3390/vetsci9020092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 12/30/2022] Open
Abstract
Zebrafish are widely used to investigate candidate genes for human diseases. While the emergence of CRISPR-Cas9 technology has revolutionized gene editing, the use of individual guide RNAs limits the efficiency and application of this technology in functional genetics research. Multiplexed genome editing significantly enhances the efficiency and scope of gene editing. Herein, we describe an efficient multiplexed genome editing strategy to generate zebrafish mutants. Following behavioural tests and histological examination, we identified one new candidate gene (tmem183a) for hearing loss. This study provides a robust genetic platform to quickly obtain zebrafish mutants and to identify candidate genes by phenotypic readouts.
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14
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CRISPR/Cas9-mediated pou4f3 knockout induces defects in the development of the zebrafish inner ear. JOURNAL OF BIO-X RESEARCH 2021. [DOI: 10.1097/jbr.0000000000000102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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15
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Shan S, Xu F, Brenig B. Genome-Wide Association Studies Reveal Neurological Genes for Dog Herding, Predation, Temperament, and Trainability Traits. Front Vet Sci 2021; 8:693290. [PMID: 34368281 PMCID: PMC8335642 DOI: 10.3389/fvets.2021.693290] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 06/15/2021] [Indexed: 11/13/2022] Open
Abstract
Genome-wide association study (GWAS) using dog breed standard values as phenotypic measurements is an efficient way to identify genes associated with morphological and behavioral traits. As a result of strong human purposeful selections, several specialized behavioral traits such as herding and hunting have been formed in different modern dog breeds. However, genetic analyses on this topic are rather limited due to the accurate phenotyping difficulty for these complex behavioral traits. Here, 268 dog whole-genome sequences from 130 modern breeds were used to investigate candidate genes underlying dog herding, predation, temperament, and trainability by GWAS. Behavioral phenotypes were obtained from the American Kennel Club based on dog breed standard descriptions or groups (conventional categorization of dog historical roles). The GWAS results of herding behavior (without body size as a covariate) revealed 44 significantly associated sites within five chromosomes. Significantly associated sites on CFA7, 9, 10, and 20 were located either in or near neuropathological or neuronal genes including THOC1, ASIC2, MSRB3, LLPH, RFX8, and CHL1. MSRB3 and CHL1 genes were reported to be associated with dog fear. Since herding is a restricted hunting behavior by removing killing instinct, 36 hounds and 55 herding dogs were used to analyze predation behavior. Three neuronal-related genes (JAK2, MEIS1, and LRRTM4) were revealed as candidates for predation behavior. The significantly associated variant of temperament GWAS was located within ACSS3 gene. The highest associated variant in trainability GWAS is located on CFA22, with no variants detected above the Bonferroni threshold. Since dog behaviors are correlated with body size, we next incorporate body mass as covariates into GWAS; and significant signals around THOC1, MSRB3, LLPH, RFX8, CHL1, LRRTM4, and ACSS3 genes were still detected for dog herding, predation, and temperament behaviors. In humans, these candidate genes are either involved in nervous system development or associated with mental disorders. In conclusion, our results imply that these neuronal or psychiatric genes might be involved in biological processes underlying dog herding, predation, and temperament behavioral traits.
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Affiliation(s)
- Shuwen Shan
- Department of Animal Sciences, Faculty of Agricultural Sciences, Institute of Veterinary Medicine, University of Goettingen, Göttingen, Germany
| | - Fangzheng Xu
- Department of Animal Sciences, Faculty of Agricultural Sciences, Institute of Veterinary Medicine, University of Goettingen, Göttingen, Germany
| | - Bertram Brenig
- Department of Animal Sciences, Faculty of Agricultural Sciences, Institute of Veterinary Medicine, University of Goettingen, Göttingen, Germany
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Identification of Novel Candidate Genes and Variants for Hearing Loss and Temporal Bone Anomalies. Genes (Basel) 2021; 12:genes12040566. [PMID: 33924653 PMCID: PMC8069784 DOI: 10.3390/genes12040566] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/01/2021] [Accepted: 04/08/2021] [Indexed: 01/09/2023] Open
Abstract
Background: Hearing loss remains an important global health problem that is potentially addressed through early identification of a genetic etiology, which helps to predict outcomes of hearing rehabilitation such as cochlear implantation and also to mitigate the long-term effects of comorbidities. The identification of variants for hearing loss and detailed descriptions of clinical phenotypes in patients from various populations are needed to improve the utility of clinical genetic screening for hearing loss. Methods: Clinical and exome data from 15 children with hearing loss were reviewed. Standard tools for annotating variants were used and rare, putatively deleterious variants were selected from the exome data. Results: In 15 children, 21 rare damaging variants in 17 genes were identified, including: 14 known hearing loss or neurodevelopmental genes, 11 of which had novel variants; and three candidate genes IST1, CBLN3 and GDPD5, two of which were identified in children with both hearing loss and enlarged vestibular aqueducts. Patients with variants within IST1 and MYO18B had poorer outcomes after cochlear implantation. Conclusion: Our findings highlight the importance of identifying novel variants and genes in ethnic groups that are understudied for hearing loss.
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