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Takeda H, Dondzillo A, Randall JA, Gubbels SP. Selective ablation of cochlear hair cells promotes engraftment of human embryonic stem cell-derived progenitors in the mouse organ of Corti. Stem Cell Res Ther 2021; 12:352. [PMID: 34147129 PMCID: PMC8214253 DOI: 10.1186/s13287-021-02403-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 05/19/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hearing loss affects 25% of the population at ages 60-69 years. Loss of the hair cells of the inner ear commonly underlies deafness and once lost this cell type cannot spontaneously regenerate in higher vertebrates. As a result, there is a need for the development of regenerative strategies to replace hair cells once lost. Stem cell-based therapies are one such strategy and offer promise for cell replacement in a variety of tissues. A number of investigators have previously demonstrated successful implantation, and certain level of regeneration of hair and supporting cells in both avian and mammalian models using rodent pluripotent stem cells. However, the ability of human stem cells to engraft and generate differentiated cell types in the inner ear is not well understood. METHODS We differentiate human pluripotent stem cells to the pre-placodal stage in vitro then transplant them into the mouse cochlea after selective and complete lesioning of the endogenous population of hair cells. RESULTS We demonstrate that hair cell ablation prior to transplantation leads to increased engraftment in the auditory sensory epithelium, the organ of Corti, as well as differentiation of transplanted cells into hair and supporting cell immunophenotypes. CONCLUSION We have demonstrated the feasibility of human stem cell engraftment into an ablated mouse organ of Corti.
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Affiliation(s)
- Hiroki Takeda
- Department of Otolaryngology, University of Colorado Denver, Academic Office One, Suite 3001, 12631 E 17th Avenue, MS B205, Aurora, CO, 80045, USA
- Department of Otolaryngology-Head and Neck Surgery, Kumamoto University, Graduate School of Medicine, Kumamoto City, Japan
| | - Anna Dondzillo
- Department of Otolaryngology, University of Colorado Denver, Academic Office One, Suite 3001, 12631 E 17th Avenue, MS B205, Aurora, CO, 80045, USA
| | - Jessica A Randall
- Department of Otolaryngology, University of Colorado Denver, Academic Office One, Suite 3001, 12631 E 17th Avenue, MS B205, Aurora, CO, 80045, USA
| | - Samuel P Gubbels
- Department of Otolaryngology, University of Colorado Denver, Academic Office One, Suite 3001, 12631 E 17th Avenue, MS B205, Aurora, CO, 80045, USA.
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2
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Maharajan N, Cho GW, Jang CH. Therapeutic Application of Mesenchymal Stem Cells for Cochlear Regeneration. In Vivo 2021; 35:13-22. [PMID: 33402445 DOI: 10.21873/invivo.12227] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 09/27/2020] [Accepted: 09/30/2020] [Indexed: 12/11/2022]
Abstract
Hearing loss is one of the major worldwide health problems that seriously affects human social and cognitive development. In the auditory system, three components outer ear, middle ear and inner ear are essential for the hearing mechanism. In the inner ear, sensory hair cells and ganglion neuronal cells are the essential supporters for hearing mechanism. Damage to these cells can be caused by long-term exposure of excessive noise, ototoxic drugs (aminoglycosides), ear tumors, infections, heredity and aging. Since mammalian cochlear hair cells do not regenerate naturally, some therapeutic interventions may be required to replace the damaged or lost cells. Cochlear implants and hearing aids are the temporary solutions for people suffering from severe hearing loss. The current discoveries in gene therapy may provide a deeper understanding in essential genes for the inner ear regeneration. Stem cell migration, survival and differentiation to supporting cells, cochlear hair cells and spiral ganglion neurons are the important foundation in understanding stem cell therapy. Moreover, mesenchymal stem cells (MSCs) from different sources (bone marrow, umbilical cord, adipose tissue and placenta) could be used in inner ear therapy. Transplanted MSCs in the inner ear can recruit homing factors at the damaged sites to induce transdifferentiation into inner hair cells and ganglion neurons or regeneration of sensory hair cells, thus enhancing the cochlear function. This review summarizes the potential application of mesenchymal stem cells in hearing restoration and combining stem cell and molecular therapeutic strategies can also be used in the recovery of cochlear function.
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Affiliation(s)
- Nagarajan Maharajan
- Department of Biology, College of Natural Science, BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Gwangju, Republic of Korea
| | - Gwang Won Cho
- Department of Biology, College of Natural Science, BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Gwangju, Republic of Korea
| | - Chul Ho Jang
- Department of Otolaryngology, Chonnam National University Medical School, Gwangju, Republic of Korea
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Wang YH, Chen YH, Shen WH. Amikacin Suppresses Human Breast Cancer Cell MDA-MB-231 Migration and Invasion. TOXICS 2020; 8:toxics8040108. [PMID: 33233497 PMCID: PMC7712503 DOI: 10.3390/toxics8040108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/13/2020] [Accepted: 11/18/2020] [Indexed: 02/06/2023]
Abstract
(1) Background: Amikacin is an aminoglycoside antibiotic used for treating gram-negative bacterial infections in cancer patients. In this study, our aims are to investigate the migratory inhibition effects of amikacin in human MDA-MB-231 cells. (2) Methods: We used a wound-healing assay, trans-well analysis, Western blotting, immunostaining and siRNA knockdown approaches to investigate how amikacin influenced MDA-MB-231 cell migration and invasion. (3) Results: Wound healing showed that the MDA-MB-231 cell migration rates decreased to 44.4% in the presence of amikacin. Trans-well analysis showed that amikacin treatment led to invasion inhibition. Western blotting demonstrated that amikacin induced thioredoxin-interacting protein (TXNIP) up-regulation. TXNIP was knocked down using siRNA in MDA-MB-231 cell. Using immunostaining analysis, we found that inhibition of TXNIP expression led to MDA-MB-231 pseudopodia extension; however, amikacin treatment attenuated the cell extension formation. (4) Conclusions: We observed inhibition of migration and invasion in MDA-MB-231 cells treated with amikacin. This suggests inhibition might be mediated by up-regulation of TXNIP.
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Affiliation(s)
- Yun-Hsin Wang
- Division of Basic Research, Koo Foundation Sun Yat-Sen Cancer Center, Taipei 112, Taiwan;
- Department of Chemistry, Tamkang University, Tamsui, New Taipei City 251, Taiwan;
- Correspondence: ; Tel.: +886-2-28970011 (ext. 1468)
| | - Yau-Hung Chen
- Department of Chemistry, Tamkang University, Tamsui, New Taipei City 251, Taiwan;
| | - Wen-Hao Shen
- Division of Basic Research, Koo Foundation Sun Yat-Sen Cancer Center, Taipei 112, Taiwan;
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Waqas M, Us-Salam I, Bibi Z, Wang Y, Li H, Zhu Z, He S. Stem Cell-Based Therapeutic Approaches to Restore Sensorineural Hearing Loss in Mammals. Neural Plast 2020; 2020:8829660. [PMID: 32802037 PMCID: PMC7416290 DOI: 10.1155/2020/8829660] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/01/2020] [Accepted: 07/03/2020] [Indexed: 12/13/2022] Open
Abstract
The hair cells that reside in the cochlear sensory epithelium are the fundamental sensory structures responsible for understanding the mechanical sound waves evoked in the environment. The intense damage to these sensory structures may result in permanent hearing loss. The present strategies to rehabilitate the hearing function include either hearing aids or cochlear implants that may recover the hearing capability of deaf patients to a limited extent. Therefore, much attention has been paid on developing regenerative therapies to regenerate/replace the lost hair cells to treat the damaged cochlear sensory epithelium. The stem cell therapy is a promising approach to develop the functional hair cells and neuronal cells from endogenous and exogenous stem cell pool to recover hearing loss. In this review, we specifically discuss the potential of different kinds of stem cells that hold the potential to restore sensorineural hearing loss in mammals and comprehensively explain the current therapeutic applications of stem cells in both the human and mouse inner ear to regenerate/replace the lost hair cells and spiral ganglion neurons.
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Affiliation(s)
- Muhammad Waqas
- Department of Biotechnology, Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal Campus, Karachi, Pakistan
- Department of Otolaryngology Head and Neck, Nanjing Tongren Hospital, School of Medicine, Southeast University, Nanjing 211102, China
| | - Iram Us-Salam
- Department of Biotechnology, Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal Campus, Karachi, Pakistan
| | - Zainab Bibi
- Department of Biotechnology, Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal Campus, Karachi, Pakistan
| | - Yunfeng Wang
- ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, Fudan University, Shanghai 200031, China
- NHC Key Laboratory of Hearing Medicine (Fudan University), Shanghai 200031, China
| | - He Li
- Department of Otolaryngology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou City, 325000 Zhejiang Province, China
| | - Zhongshou Zhu
- Department of Otolaryngology, Ningde Municipal Hospital Affiliated of Fujian Medical University (Ningde Institute of Otolaryngology), Ningde, Fujian 352100, China
| | - Shuangba He
- Department of Otolaryngology Head and Neck, Nanjing Tongren Hospital, School of Medicine, Southeast University, Nanjing 211102, China
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Tang PC, Hashino E, Nelson RF. Progress in Modeling and Targeting Inner Ear Disorders with Pluripotent Stem Cells. Stem Cell Reports 2020; 14:996-1008. [PMID: 32442531 PMCID: PMC7355141 DOI: 10.1016/j.stemcr.2020.04.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 12/12/2022] Open
Abstract
Sensorineural hearing loss and vestibular dysfunction are caused by damage to neurons and mechanosensitive hair cells, which do not regenerate to any clinically relevant extent in humans. Several protocols have been devised to direct pluripotent stem cells (PSCs) into inner ear hair cells and neurons, which display many properties of their native counterparts. The efficiency, reproducibility, and scalability of these protocols are enhanced by incorporating knowledge of inner ear development. Modeling human diseases in vitro through genetic manipulation of PSCs is already feasible, thereby permitting the elucidation of mechanistic understandings of a wide array of disease etiologies. Early studies on transplantation of PSC-derived otic progenitors have been successful in certain animal models, yet restoration of function and long-term cell survival remain unrealized. Through further research, PSC-based approaches will continue to revolutionize our understanding of inner ear biology and contribute to the development of therapeutic treatments for inner ear disorders.
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Affiliation(s)
- Pei-Ciao Tang
- Department of Otolaryngology-Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Eri Hashino
- Department of Otolaryngology-Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Rick F Nelson
- Department of Otolaryngology-Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
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Affiliation(s)
- Matthew L Carlson
- From the Department of Otolaryngology-Head and Neck Surgery and the Department of Neurologic Surgery, Mayo Clinic, Rochester, MN
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Xia M, Ma J, Sun S, Li W, Li H. The biological strategies for hearing re-establishment based on the stem/progenitor cells. Neurosci Lett 2019; 711:134406. [PMID: 31377244 DOI: 10.1016/j.neulet.2019.134406] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/18/2019] [Accepted: 07/27/2019] [Indexed: 01/04/2023]
Abstract
The cochlea is the essential organ for hearing and includes both auditory sensory hair cells and spiral ganglion neurons. The discovery of inner ear stem cell brings hope to the regeneration of hair cell and spiral ganglion neuron as well as the followed hearing re-establishment. Thus the investigation on characteristics of inner ear stem/progenitor cells and related regulating clue is important to make such regeneration a reality. In addition, attempts have also been made to transplant exogenous stem cells into the inner ear to restore hearing function. In this review, we describe recent advances in the characterization of mammalian inner ear progenitor/stem cells and the mechanisms of regulating their proliferation and differentiation, and summarize studies that have used exogenous stem cells to repair damaged hair cells and neurons in the inner ear.
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Affiliation(s)
- Mingyu Xia
- ENT Institute and Otorhinolaryngology Department of the Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China; Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Jiaoyao Ma
- ENT Institute and Otorhinolaryngology Department of the Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China; Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Shan Sun
- ENT Institute and Otorhinolaryngology Department of the Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China; Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Wenyan Li
- ENT Institute and Otorhinolaryngology Department of the Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China; Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China.
| | - Huawei Li
- ENT Institute and Otorhinolaryngology Department of the Affiliated Eye and ENT Hospital, State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, 200031, China; Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China; NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai, 200031, China; Shanghai Engineering Research Centre of Cochlear Implant, Shanghai, 200031, China; The Institutes of Brain Science and the Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, China.
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Abd El Raouf HHH, Galhom RA, Ali MHM, Nasr El-Din WA. Harderian gland-derived stem cells as a cytotherapy in a guinea pig model of carboplatin-induced hearing loss. J Chem Neuroanat 2019; 98:139-152. [PMID: 31047945 DOI: 10.1016/j.jchemneu.2019.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/09/2019] [Accepted: 04/28/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Stem cells therapy of hearing loss is a challenging field due to lacking self-regenerative capacity of cochlea. Harderian gland of guinea pigs was thought to harbour a unique type of progenitors which could restore the damaged cochlear tissues. THE AIM of this study was to isolate Harderian gland derived stem cells (HG-SCs) and investigate their efficacy in restoring the damaged cochlear tissue in carboplatin-induced hearing loss. METHODOLOGY Sixty female and 10 male pigmented guinea pigs were used; the male animals were HG-SCs donors, while the females were assigned into 3 groups; control, hearing loss (HL) and HG-SC-treated groups. Auditory reflexes were assessed throughout the study. The animals were euthanized 35 days after HG-SCs transplantation, the cochleae were extracted and processed for assessment by light microscope and scanning electron microscope. Morphometric assessment of stria vascularis thickness, hair cells and spiral ganglia neuronal number and optical density of TLR4 expression were done. RESULTS The isolated HG-SCs had the same morphological and phenotypical character as mesenchymal stem cells. HL group revealed destruction of organ of Corti, stria vascularis and spiral ganglion with decreased morphometric parameters. Restoration of both cochlear structure and function was observed in HG-SC-treated group along with a significant increase in IHCs, OHCs numbers, stria vascularis thickness and spiral ganglionic cell count to be close to the values of control group. CONCLUSION The isolated HG-SCs were proved to restore structure and function of cochlea in guinea pig model of hearing loss.
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Affiliation(s)
| | - Rania A Galhom
- Human Anatomy and Embryology Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.
| | - Mona H Mohammed Ali
- Human Anatomy and Embryology Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Wael Amin Nasr El-Din
- Human Anatomy and Embryology Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt; Anatomy Department, Ibn Sina National College for Medical Studies, Jeddah, Saudi Arabia
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Engraftment of Human Stem Cell-Derived Otic Progenitors in the Damaged Cochlea. Mol Ther 2019; 27:1101-1113. [PMID: 31005598 DOI: 10.1016/j.ymthe.2019.03.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 03/25/2019] [Accepted: 03/26/2019] [Indexed: 12/20/2022] Open
Abstract
Most cases of sensorineural deafness are caused by degeneration of hair cells. Although stem/progenitor cell therapy is becoming a promising treatment strategy in a variety of organ systems, cell engraftment in the adult mammalian cochlea has not yet been demonstrated. In this study, we generated human otic progenitor cells (hOPCs) from induced pluripotent stem cells (iPSCs) in vitro and identified these cells by the expression of known otic markers. We showed successful cell transplantation of iPSC-derived-hOPCs in an in vivo adult guinea pig model of ototoxicity. The delivered hOPCs migrated throughout the cochlea, engrafted in non-sensory regions, and survived up to 4 weeks post-transplantation. Some of the engrafted hOPCs responded to environmental cues within the cochlear sensory epithelium and displayed molecular features of early sensory differentiation. We confirmed these results with hair cell progenitors derived from Atoh1-GFP mice as donor cells. These mouse otic progenitors transplanted using the same in vivo delivery system migrated into damaged cochlear sensory epithelium and adopted a partial sensory cell fate. This is the first report of the survival and differentiation of hOPCs in ototoxic-injured mature cochlear epithelium, and it should stimulate further research into cell-based therapies for treatment of deafness.
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10
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Jiang QQ, Yu N, Yang SM. A hypothesis study on bionic active noise reduction of auditory organs. Mil Med Res 2018; 5:8. [PMID: 29502534 PMCID: PMC6389082 DOI: 10.1186/s40779-018-0155-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 02/08/2018] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Noise exposure can lead to hearing loss and multiple system dysfunctions. As various forms of noise exist in our living environments, and our auditory organs are very sensitive to acoustic stimuli, it is a challenge to protect our hearing system in certain noisy environments. PRESENTATION OF THE HYPOTHESIS Herein, we propose that our hearing organ could serve as a noise eliminator for high intensity noise and enhance acoustic signal processing abilities by increasing the signal-noise ratio. For suprathreshold signals, the hearing system is capable of regulating the middle ear muscles and other structures to actively suppress the sound level to a safe range. TESTING THE HYPOTHESIS To test our hypothesis, both mathematic model analyses and animal model studies are needed. Based on a digital 3D reconstructed model, every structure in the auditory system can be analyzed and tested for its contribution to the process of noise reduction. Products manufactured by this bionic method could be used and verified in animal models and volunteers. IMPLICATIONS By mimicking the noise-reduction effect of the sophisticated structures in the hearing system, we may be able to provide a model that establishes a new active-sound-suppression mode. This innovative method may overcome the limited capabilities of current noise protection options and become a promising possibility for noise prevention.
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Affiliation(s)
- Qing-Qing Jiang
- Department of Otolaryngology Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital; Key Laboratory of Hearing Impairment Science, Ministry of Education; Beijing Key Laboratory of Hearing Impairment Prevention and Treatment, Beijing, 100853, China
| | - Ning Yu
- Department of Otolaryngology Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital; Key Laboratory of Hearing Impairment Science, Ministry of Education; Beijing Key Laboratory of Hearing Impairment Prevention and Treatment, Beijing, 100853, China
| | - Shi-Ming Yang
- Department of Otolaryngology Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital; Key Laboratory of Hearing Impairment Science, Ministry of Education; Beijing Key Laboratory of Hearing Impairment Prevention and Treatment, Beijing, 100853, China.
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11
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Engraftment of Human Pluripotent Stem Cell-derived Progenitors in the Inner Ear of Prenatal Mice. Sci Rep 2018; 8:1941. [PMID: 29386634 PMCID: PMC5792596 DOI: 10.1038/s41598-018-20277-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/16/2018] [Indexed: 11/08/2022] Open
Abstract
There is, at present, no curative treatment for genetic hearing loss. We have previously reported that transuterine gene transfer of wild type CONNEXIN30 (CX30) genes into otocysts in CX30-deleted mice could restore hearing. Cell transplantation therapy might be another therapeutic option, although it is still unknown whether stem cell-derived progenitor cells could migrate into mouse otocysts. Here, we show successful cell transplantation of progenitors of outer sulcus cell-like cells derived from human-derived induced pluripotent stem cells into mouse otocysts on embryonic day 11.5. The delivered cells engrafted more frequently in the non-sensory region in the inner ear of CX30-deleted mice than in wild type mice and survived for up to 1 week after transplantation. Some of the engrafted cells expressed CX30 proteins in the non-sensory region. This is the first report that demonstrates successful engraftment of exogenous cells in prenatal developing otocysts in mice. Future studies using this mouse otocystic injection model in vivo will provide further clues for developing treatment modalities for congenital hearing loss in humans.
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Bettini S, Franceschini V, Astolfi L, Simoni E, Mazzanti B, Martini A, Revoltella RP. Human mesenchymal stromal cell therapy for damaged cochlea repair in nod-scid mice deafened with kanamycin. Cytotherapy 2017; 20:189-203. [PMID: 29246648 DOI: 10.1016/j.jcyt.2017.11.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 09/05/2017] [Accepted: 11/03/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Kanamycin, mainly used in the treatment of drug-resistant-tuberculosis, is known to cause irreversible hearing loss. Using the xeno-transplant model, we compared both in vitro and in vivo characteristics of human mesenchymal stromal cells (MSCs) derived from adult tissues, bone marrow (BM-MSCs) and adipose tissue (ADSCs). These tissues were selected for their availability, in vitro multipotency and regenerative potential in vivo in kanamycin-deafened nod-scid mice. METHODS MSCs were isolated from informed donors and expanded ex vivo. We evaluated their proliferation capacity in vitro using the hexosaminidase assay, the phenotypic profile using flow-cytometry of a panel of surface antigens, the osteogenic potential using alkaline phosphatase activity and the adipogenic potential using oil-red-O staining. MSCs were intravenously injected in deafened mice and cochleae, liver, spleen and kidney were sampled 7 and 30 days after transplantation. The dissected organs were analyzed using lectin histochemistry, immunohistochemistry, polymerase chain reaction (PCR) and dual color fluorescence in situ hybridization (DC-FISH). RESULTS MSCs showed similar in vitro characteristics, but ADSCs appeared to be more efficient after prolonged expansion. Both cell types engrafted in the cochlea of damaged mice, inducing regeneration of the damaged sensory structures. Several hybrid cells were detected in engrafted tissues. DISCUSSION BM-MSCs and ADSCs showed in vitro characteristics suitable for tissue regeneration and fused with resident cells in engrafted tissues. The data suggest that paracrine effect is the prevalent mechanism inducing tissue recovery. Overall, BM-MSCs and ADSCs appear to be valuable tools in regenerative medicine for hearing loss recovery.
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Affiliation(s)
- Simone Bettini
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Valeria Franceschini
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy; Foundation Onlus 'Staminali e Vita', Padua, Italy.
| | - Laura Astolfi
- Foundation Onlus 'Staminali e Vita', Padua, Italy; Bioacoustics Research Laboratory, Department of Neurosciences, University of Padua, Padua, Italy
| | - Edi Simoni
- Bioacoustics Research Laboratory, Department of Neurosciences, University of Padua, Padua, Italy
| | - Benedetta Mazzanti
- Department of Clinical and Experimental Medicine, University of Florence, Florence, Italy
| | - Alessandro Martini
- Foundation Onlus 'Staminali e Vita', Padua, Italy; Bioacoustics Research Laboratory, Department of Neurosciences, University of Padua, Padua, Italy
| | - Roberto P Revoltella
- Foundation Onlus 'Staminali e Vita', Padua, Italy; Institute for Chemical, Physical Processes, Centro Nazionale delle Ricerche (C.N.R.), Pisa, Italy
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Chen J, Guan L, Zhu H, Xiong S, Zeng L, Jiang H. Transplantation of mouse-induced pluripotent stem cells into the cochlea for the treatment of sensorineural hearing loss. Acta Otolaryngol 2017. [PMID: 28643534 DOI: 10.1080/00016489.2017.1342045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
CONCLUSION Mouse-induced pluripotent stem cells (iPSCs) could differentiate into hair cell-like cells and spiral ganglion-like cells after transplantation into mouse cochleae, but it cannot improve the auditory brain response (ABR) thresholds in short term. OBJECTIVE To evaluate the potential of iPSCs for use as a source of transplants for the treatment of sensorineural hearing loss (SNHL). METHODS Establishing SNHL mice model, then injecting the iPSCs or equal volume DMEM basic medium into the cochleae, respectively. Immunofluorescence staining and reverse transcription-polymerase chain reaction (RT-PCR) were used to assess the survival, migration, differentiation of the transplanted iPSCs in cochleae and then recorded the ABR threshold in different time. Hematoxylin-eosin (HE) staining was used to observe the teratoma formation. RESULTS Four weeks after transplantation, CM-Di1-labeled iPSCs could be found in the modiolus and Rosenthal's canal (RC), and some of them could expressed auditory hair cell markers or spiral ganglion neuron makers in group A, but not found in group B and C. As to the ABR threshold, no significance differences were found between pre- with postoperative in group A or B. In our study, no teratoma was observed in the cochleae.
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Affiliation(s)
- Jing Chen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Lina Guan
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hengtao Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Shan Xiong
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Liang Zeng
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hongqun Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, China
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Mülazımoğlu S, Ocak E, Kaygusuz G, Gökcan MK. Retroauricular Approach for Targeted Cochlear Therapy Experiments in Wistar Albino Rats. Balkan Med J 2017; 34:200-205. [PMID: 28443600 PMCID: PMC5450858 DOI: 10.4274/balkanmedj.2016.0226] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Background: As the idea of stem cell technology in the treatment of sensorial hearing loss has emerged over the past decades, the need for in vivo models for related experiments has become explicit. One of the most common experimental models for inner ear stem cell delivery experiments is the Wistar albino rat. Aims: To investigate the surgical anatomy of the temporal bone of the Wistar albino rat with respect to the dissection steps, operative techniques and potential pitfalls of surgery. Study Design: Animal experimentation. Methods: Adult Wistar albino rats were operated on via the retroauricular approach under an operation microscope. The anatomy of the temporal bone, the surgical route to the temporal bulla and the inner ear were investigated. Technical details of surgical steps, complications and potential pitfalls during the surgery were noted. Results: The study group consisted of 40 adult Wistar albino rats. The mean times to reach the bulla and to achieve cochleostomy were 4.3 (2-13 min) and 7.5 min (3.5-22 min), respectively. The mean width of the facial nerve was 0.84 mm (0.42-1.25 mm). The stapedial artery lay nearly perpendicular to the course of the facial nerve (88-93 °C). There were three major complications: two large cochleostomies and one massive bleed from the stapedial artery. Conclusion: The facial nerve was the key anatomical landmark in locating the bulla. By retrograde tracing of the facial nerve, it was possible to find the bulla ventral (inferior) to the main trunk. The facial nerve trunk was the upper limit when drilling the bulla. By dissecting the main trunk of the facial nerve and retracting cranially, a large drilling space could be achieved. Our results suggest that the retroauricular approach is an effective, feasible route for inner ear drug delivery experiments in Wistar albino rats.
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Affiliation(s)
- Selçuk Mülazımoğlu
- Department of Otorhinolaryngology, Ankara University School of Medicine, Ankara, Turkey
| | - Emre Ocak
- Department of Otorhinolaryngology, Keçiören Training and Research Hospital, Ankara, Turkey
| | - Gülşah Kaygusuz
- Department of Pathology, Ankara University School of Medicine, Ankara, Turkey
| | - Mustafa Kürşat Gökcan
- Department of Otorhinolaryngology, Ankara University School of Medicine, Ankara, Turkey
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15
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Li D, Sun J, Zhao L, Guo W, Sun W, Yang S. Aminoglycoside Increases Permeability of Osseous Spiral Laminae of Cochlea by Interrupting MMP-2 and MMP-9 Balance. Neurotox Res 2016; 31:348-357. [PMID: 28005182 DOI: 10.1007/s12640-016-9689-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 12/10/2016] [Accepted: 12/12/2016] [Indexed: 12/20/2022]
Abstract
The spiral ganglion neurons (SGNs) located in the Rosenthal's canal of cochlea are essential target for cochlear implant. Previous studies found that the canaliculi perforantes, small pores on the surface of the osseous spiral lamina (OSL) of the scala tympanic (ST) of cochlea, may provide communication between the cochlear perilymph and SGNs. In this study, we found that chronic treatment of aminoglycosides antibiotics, which is well known to cause sensory cell damage in the cochlea, induced significant damage of bone lining cells on the OSLs and increased the permeability of the Rosenthal's canal. The pores among the bone lining cells became significantly wider after chronic treatment of amikacin (100 mg/kg/day for 3-7 days). Injection of Evans Blue in the ST resulted in significant increase in its migration in the modulus in the amikacin-treated cochlea compared to the control ears, suggesting increased permeability of these passages. Treatment of amikacin with oxytetracycline, an inhibitor of matrix metalloproteases (MMPs), significantly reduced the amount of dye migrated from the ST to the modiolus. These results suggest that amikacin enhanced the permeability between the ST and SGNs by increasing MMPs. Aggregating the permeability of the bone lining cells on the OSLs may benefit gene and stem cell delivery to the SGNs in the cochlea.
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Affiliation(s)
- Dengke Li
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology of PLA, Chinese PLA General Hospital, Beijing, 100853, People's Republic of China
| | - Jianhe Sun
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology of PLA, Chinese PLA General Hospital, Beijing, 100853, People's Republic of China
| | - Lidong Zhao
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology of PLA, Chinese PLA General Hospital, Beijing, 100853, People's Republic of China
| | - Weiwei Guo
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology of PLA, Chinese PLA General Hospital, Beijing, 100853, People's Republic of China
| | - Wei Sun
- Department of Communicative Disorders and Sciences, Center for Hearing and Deafness, the State University of New York at Buffalo, Buffalo, New York, 14214, USA
| | - Shiming Yang
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology of PLA, Chinese PLA General Hospital, Beijing, 100853, People's Republic of China.
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16
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Cristóbal Maass J, Hanuch F, Ormazábal M. AVANCES EN REGENERACIÓN AUDITIVA. ESTADO ACTUAL Y PERSPECTIVAS FUTURAS. REVISTA MÉDICA CLÍNICA LAS CONDES 2016. [DOI: 10.1016/j.rmclc.2016.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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17
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Barboza LCM, Lezirovitz K, Zanatta DB, Strauss BE, Mingroni-Netto RC, Oiticica J, Haddad LA, Bento RF. Transplantation and survival of mouse inner ear progenitor/stem cells in the organ of Corti after cochleostomy of hearing-impaired guinea pigs: preliminary results. Braz J Med Biol Res 2016; 49:e5064. [PMID: 27007652 PMCID: PMC4819408 DOI: 10.1590/1414-431x20155064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 11/16/2015] [Indexed: 11/30/2022] Open
Abstract
In mammals, damage to sensory receptor cells (hair cells) of the inner ear results in permanent sensorineural hearing loss. Here, we investigated whether postnatal mouse inner ear progenitor/stem cells (mIESCs) are viable after transplantation into the basal turns of neomycin-injured guinea pig cochleas. We also examined the effects of mIESC transplantation on auditory functions. Eight adult female Cavia porcellus guinea pigs (250-350g) were deafened by intratympanic neomycin delivery. After 7 days, the animals were randomly divided in two groups. The study group (n=4) received transplantation of LacZ-positive mIESCs in culture medium into the scala tympani. The control group (n=4) received culture medium only. At 2 weeks after transplantation, functional analyses were performed by auditory brainstem response measurement, and the animals were sacrificed. The presence of mIESCs was evaluated by immunohistochemistry of sections of the cochlea from the study group. Non-parametric tests were used for statistical analysis of the data. Intratympanic neomycin delivery damaged hair cells and increased auditory thresholds prior to cell transplantation. There were no significant differences between auditory brainstem thresholds before and after transplantation in individual guinea pigs. Some mIESCs were observed in all scalae of the basal turns of the injured cochleas, and a proportion of these cells expressed the hair cell marker myosin VIIa. Some transplanted mIESCs engrafted in the cochlear basilar membrane. Our study demonstrates that transplanted cells survived and engrafted in the organ of Corti after cochleostomy.
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Affiliation(s)
- L C M Barboza
- Departamento de Otorrinolaringologia (LIM32), Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - K Lezirovitz
- Departamento de Otorrinolaringologia (LIM32), Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - D B Zanatta
- Setor de Vetores Virais, Laboratório de Genética e Cardiologia Molecular, Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - B E Strauss
- Setor de Vetores Virais, Laboratório de Genética e Cardiologia Molecular, Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - R C Mingroni-Netto
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brasil
| | - J Oiticica
- Departamento de Otorrinolaringologia (LIM32), Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - L A Haddad
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brasil
| | - R F Bento
- Departamento de Otorrinolaringologia (LIM32), Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
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