Name: canalostomy as a surgical approach to local drug delivery into the inner ears of adult and neonatal mice
Uploaded: 2018-05-25T13:00:00
Description: Watch this Scientific Journal Video about Canalostomy As a Surgical Approach to Local Drug Delivery into the Inner Ears of Adult and Neonatal Mice at JoVE.com

この作品は、中国の国家自然科学基金 (許可番号 81570912、81771016、81100717) によって支えられました。

動物愛護と中国の首都医科大学の利用委員会のガイドラインによるとすべてのプロシージャと動物の手術を行った。
1. デバイスの準備
<ol><li>注入カニューレ (図 1 a) をするためには、ポリイミド チューブを接続 (内径 114.3 μ m、外径 139.7 μ m、長さ 3 ~ cm) ポリエチレン チューブに (内径 280 μ m、外径 640 μ m、長さ ~ 40 cm)。瞬間接着剤を使用して、少...

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	<li>Stachler, R. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Clinical+practice+guideline:+sudden+hearing+loss.">Clinical practice guideline: sudden hearing loss.</a> Otolaryngol Head Neck Surg. 146 (3 Suppl), S1-S35 (2012).</li><li>Lentz, J. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Rescue+of+hearing+and+vestibular+function+by+antisense+oligonucleotides+in+a+mouse+model+of+human+deafness.">Rescue of hearing and vestibular function by antisense oligonucleotides in a mouse model of human deafness.</a> Nat Med. 19 (3), 345-350 (2013).</li><li>Rivera, T., Sanz, L., Camarero, G., Varela-Nieto, I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Drug+delivery+to+the+inner+ear:+strategies+and+their+therapeutic+implications+for+sensorineural+hearing+loss.">Drug delivery to the inner ear: strategies and their therapeutic implications for sensorineural hearing loss.</a> Curr Drug Deliv. 9 (3), 231-242 (2012).</li><li>El Kechai, N., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Recent+advances+in+local+drug+delivery+to+the+inner+ear.">Recent advances in local drug delivery to the inner ear.</a> Int J Pharm. 494 (1), 83-101 (2015).</li><li>Akil, O., Rouse, S. L., Chan, D. K., Lustig, L. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Surgical+method+for+virally+mediated+gene+delivery+to+the+mouse+inner+ear+through+the+round+window+membrane.">Surgical method for virally mediated gene delivery to the mouse inner ear through the round window membrane.</a> J Vis Exp. (97), e52187 (2015).</li><li>Ahmed, H., Shubina-Oleinik, O., Holt, J. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Emerging+Gene+Therapies+for+Genetic+Hearing+Loss.">Emerging Gene Therapies for Genetic Hearing Loss.</a> J Assoc Res Otolaryngol. 18 (5), 649-670 (2017).</li><li>Murillo-Cuesta, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+Comparative+Study+of+Drug+Delivery+Methods+Targeted+to+the+Mouse+Inner+Ear:+Bullostomy+Versus+Transtympanic+Injection.">A Comparative Study of Drug Delivery Methods Targeted to the Mouse Inner Ear: Bullostomy Versus Transtympanic Injection.</a> J Vis Exp. (121), e54951 (2017).</li><li>Stevens, S. M., Brown, L. N., Ezell, P. C., Lang, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+Mouse+Round-window+Approach+for+Ototoxic+Agent+Delivery:+A+Rapid+and+Reliable+Technique+for+Inducing+Cochlear+Cell+Degeneration.">The Mouse Round-window Approach for Ototoxic Agent Delivery: A Rapid and Reliable Technique for Inducing Cochlear Cell Degeneration.</a> J Vis Exp. (105), e53131 (2015).</li><li>Salt, A. N., Plontke, S. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Principles+of+local+drug+delivery+to+the+inner+ear.">Principles of local drug delivery to the inner ear.</a> Audiol Neurootol. 14 (6), 350-360 (2009).</li><li>Akil, O., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Restoration+of+hearing+in+the+VGLUT3+knockout+mouse+using+virally+mediated+gene+therapy.">Restoration of hearing in the VGLUT3 knockout mouse using virally mediated gene therapy.</a> Neuron. 75 (2), 283-293 (2012).</li><li>Pan, B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gene+therapy+restores+auditory+and+vestibular+function+in+a+mouse+model+of+Usher+syndrome+type+1c.">Gene therapy restores auditory and vestibular function in a mouse model of Usher syndrome type 1c.</a> Nat Biotechnol. 35 (3), 264-272 (2017).</li><li>Kilpatrick, L. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adeno-associated+virus-mediated+gene+delivery+into+the+scala+media+of+the+normal+and+deafened+adult+mouse+ear.">Adeno-associated virus-mediated gene delivery into the scala media of the normal and deafened adult mouse ear.</a> Gene Ther. 18 (6), 569-578 (2011).</li><li>Izumikawa, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Auditory+hair+cell+replacement+and+hearing+improvement+by+Atoh1+gene+therapy+in+deaf+mammals.">Auditory hair cell replacement and hearing improvement by Atoh1 gene therapy in deaf mammals.</a> Nat Med. 11 (3), 271-276 (2005).</li><li>Chang, Q., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Virally+mediated+Kcnq1+gene+replacement+therapy+in+the+immature+scala+media+restores+hearing+in+a+mouse+model+of+human+Jervell+and+Lange-Nielsen+deafness+syndrome.">Virally mediated Kcnq1 gene replacement therapy in the immature scala media restores hearing in a mouse model of human Jervell and Lange-Nielsen deafness syndrome.</a> EMBO Mol Med. 7 (8), 1077-1086 (2015).</li><li>Chen, Z., Mikulec, A. A., McKenna, M. J., Sewell, W. F., Kujawa, S. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+method+for+intracochlear+drug+delivery+in+the+mouse.">A method for intracochlear drug delivery in the mouse.</a> J Neurosci Methods. 150 (1), 67-73 (2006).</li><li>Kawamoto, K., Oh, S. H., Kanzaki, S., Brown, N., Raphael, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+functional+and+structural+outcome+of+inner+ear+gene+transfer+via+the+vestibular+and+cochlear+fluids+in+mice.">The functional and structural outcome of inner ear gene transfer via the vestibular and cochlear fluids in mice.</a> Mol Ther. 4 (6), 575-585 (2001).</li><li>Bowers, W. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Neurotrophin-3+transduction+attenuates+cisplatin+spiral+ganglion+neuron+ototoxicity+in+the+cochlea.">Neurotrophin-3 transduction attenuates cisplatin spiral ganglion neuron ototoxicity in the cochlea.</a> Mol Ther. 6 (1), 12-18 (2002).</li><li>Wang, G. P., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adeno-associated+virus-mediated+gene+transfer+targeting+normal+and+traumatized+mouse+utricle.">Adeno-associated virus-mediated gene transfer targeting normal and traumatized mouse utricle.</a> Gene Ther. 21 (11), 958-966 (2014).</li><li>Isgrig, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Therapy+Restores+Balance+and+Auditory+Functions+in+a+Mouse+Model+of+Usher+Syndrome.">Therapy Restores Balance and Auditory Functions in a Mouse Model of Usher Syndrome.</a> Mol Ther. 25 (3), 780-791 (2017).</li><li>Gassner, D., Durham, D., Pfannenstiel, S. C., Brough, D. E., Staecker, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Canalostomy+as+a+surgical+approach+for+cochlear+gene+therapy+in+the+rat.">Canalostomy as a surgical approach for cochlear gene therapy in the rat.</a> Anat Rec (Hoboken). 295 (11), 1830-1836 (2012).</li><li>Yamasoba, T., Yagi, M., Roessler, B. J., Miller, J. M., Raphael, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Inner+ear+transgene+expression+after+adenoviral+vector+inoculation+in+the+endolymphatic+sac.">Inner ear transgene expression after adenoviral vector inoculation in the endolymphatic sac.</a> Hum Gene Ther. 10 (5), 769-774 (1999).</li><li>Xia, L., Yin, S., Wang, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Inner+ear+gene+transfection+in+neonatal+mice+using+adeno-associated+viral+vector:+a+comparison+of+two+approaches.">Inner ear gene transfection in neonatal mice using adeno-associated viral vector: a comparison of two approaches.</a> PLoS One. 7 (8), e43218 (2012).</li><li>Chien, W. W., McDougald, D. S., Roy, S., Fitzgerald, T. S., Cunningham, L. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cochlear+gene+transfer+mediated+by+adeno-associated+virus:+Comparison+of+two+surgical+approaches.">Cochlear gene transfer mediated by adeno-associated virus: Comparison of two surgical approaches.</a> Laryngoscope. 125 (11), 2557-2564 (2015).</li><li>Zhu, B. Z., Saleh, J., Isgrig, K. T., Cunningham, L. L., Chien, W. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Hearing+Loss+after+Round+Window+Surgery+in+Mice+Is+due+to+Middle+Ear+Effusion.">Hearing Loss after Round Window Surgery in Mice Is due to Middle Ear Effusion.</a> Audiol Neurootol. 21 (6), 356-364 (2017).</li><li>Wang, Y., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Early+postnatal+virus+inoculation+into+the+scala+media+achieved+extensive+expression+of+exogenous+green+fluorescent+protein+in+the+inner+ear+and+preserved+auditory+brainstem+response+thresholds.">Early postnatal virus inoculation into the scala media achieved extensive expression of exogenous green fluorescent protein in the inner ear and preserved auditory brainstem response thresholds.</a> J Gene Med. 15 (3-4), 123-133 (2013).</li><li>Lee, M. Y., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Survival+of+human+embryonic+stem+cells+implanted+in+the+guinea+pig+auditory+epithelium.">Survival of human embryonic stem cells implanted in the guinea pig auditory epithelium.</a> Sci Rep. 7, 46058 (2017).</li><li>Ishimoto, S., Kawamoto, K., Kanzaki, S., Raphael, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gene+transfer+into+supporting+cells+of+the+organ+of+Corti.">Gene transfer into supporting cells of the organ of Corti.</a> Hear Res. 173 (1-2), 187-197 (2002).</li><li>Okada, H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gene+transfer+targeting+mouse+vestibule+using+adenovirus+and+adeno-associated+virus+vectors.">Gene transfer targeting mouse vestibule using adenovirus and adeno-associated virus vectors.</a> Otol Neurotol. 33 (4), 655-659 (2012).</li><li>Suzuki, J., Hashimoto, K., Xiao, R., Vandenberghe, L. H., Liberman, M. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cochlear+gene+therapy+with+ancestral+AAV+in+adult+mice:+complete+transduction+of+inner+hair+cells+without+cochlear+dysfunction.">Cochlear gene therapy with ancestral AAV in adult mice: complete transduction of inner hair cells without cochlear dysfunction.</a> Sci Rep. 7, 45524 (2017).</li><li>Guo, J. Y., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cochleovestibular+gene+transfer+in+neonatal+mice+by+canalostomy.">Cochleovestibular gene transfer in neonatal mice by canalostomy.</a> Neuroreport. 28 (11), 682-688 (2017).</li><li>Beyea, J. A., Agrawal, S. K., Parnes, L. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Transmastoid+semicircular+canal+occlusion:+a+safe+and+highly+effective+treatment+for+benign+paroxysmal+positional+vertigo+and+superior+canal+dehiscence.">Transmastoid semicircular canal occlusion: a safe and highly effective treatment for benign paroxysmal positional vertigo and superior canal dehiscence.</a> Laryngoscope. 122 (8), 1862-1866 (2012).</li><li>Naples, J. G., Eisen, M. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+History+and+Evolution+of+Surgery+on+the+Vestibular+Labyrinth.">The History and Evolution of Surgery on the Vestibular Labyrinth.</a> Otolaryngol Head Neck Surg. 155 (5), 816-819 (2016).</li><li>Hamilton, L., Keh, S., Spielmann, P. M., Hussain, S. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=How+we+do+it:+locating+the+posterior+semicircular+canal+in+occlusion+surgery+for+refractory+benign+paroxysmal+positional+vertigo:+a+cadaveric+temporal+bone+study.">How we do it: locating the posterior semicircular canal in occlusion surgery for refractory benign paroxysmal positional vertigo: a cadaveric temporal bone study.</a> Clinical Otolaryngology. 41 (2), 190-193 (2016).</li><li>Jung, J. Y., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=siRNA+targeting+Hes5+augments+hair+cell+regeneration+in+aminoglycoside-damaged+mouse+utricle.">siRNA targeting Hes5 augments hair cell regeneration in aminoglycoside-damaged mouse utricle.</a> Mol Ther. 21 (4), 834-841 (2013).</li><li>Kamiya, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mesenchymal+stem+cell+transplantation+accelerates+hearing+recovery+through+the+repair+of+injured+cochlear+fibrocytes.">Mesenchymal stem cell transplantation accelerates hearing recovery through the repair of injured cochlear fibrocytes.</a> Am J Pathol. 171 (1), 214-226 (2007).</li><li>Pfannenstiel, S. C., Praetorius, M., Plinkert, P. K., Brough, D. E., Staecker, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Bcl-2+gene+therapy+prevents+aminoglycoside-induced+degeneration+of+auditory+and+vestibular+hair+cells.">Bcl-2 gene therapy prevents aminoglycoside-induced degeneration of auditory and vestibular hair cells.</a> Audiol Neurootol. 14 (4), 254-266 (2009).</li><li>Kawamoto, K., Izumikawa, M., Beyer, L. A., Atkin, G. M., Raphael, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Spontaneous+hair+cell+regeneration+in+the+mouse+utricle+following+gentamicin+ototoxicity.">Spontaneous hair cell regeneration in the mouse utricle following gentamicin ototoxicity.</a> Hear Res. 247 (1), 17-26 (2009).</li><li>Wang, G. P., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Notch+signaling+and+Atoh1+expression+during+hair+cell+regeneration+in+the+mouse+utricle.">Notch signaling and Atoh1 expression during hair cell regeneration in the mouse utricle.</a> Hear Res. 267 (1-2), 61-70 (2010).</li><li>Pietola, L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=HOX-GFP+and+WOX-GFP+lentivirus+vectors+for+inner+ear+gene+transfer.">HOX-GFP and WOX-GFP lentivirus vectors for inner ear gene transfer.</a> Acta Otolaryngol. 128 (6), 613-620 (2008).</li><li>Han, J. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Transgene+expression+in+the+guinea+pig+cochlea+mediated+by+a+lentivirus-derived+gene+transfer+vector.">Transgene expression in the guinea pig cochlea mediated by a lentivirus-derived gene transfer vector.</a> Hum Gene Ther. 10 (11), 1867-1873 (1999).</li></ol>

本研究で我々 は canalostomy による薬物が蝸牛と前庭エンドの臓器全体で試薬の広範な分布の結果を示した。内耳遺伝子配達方法として canalostomy は、聴覚と前庭の機能に最小限のダメージで成人と新生児マウスの内側の耳の GFP 発現をもたらした。さらに、同じ動物の複数の注射を簡単に実行できます。
Canalostomy の最大の強みの 1 つは、成体マウス16,<...

難聴と前庭機能障害に影響を与える患者の相当な数を密接に感音難聴内耳障害に関連付けられています。内耳への治療薬の配達は、内耳障害の治療のための約束を示しています。全身またはローカル アプローチは、内耳に薬を提供する使用できます。いくつかの内耳疾患は、突発性難聴、全身ステロイド1と扱われる一般的などの全身性の薬物投与による正常に扱われます。さらに、レンツらはアンチセンス オリゴヌクレオチドの全身投与は難聴を改善し、バランスの Ush1c 突然変異体マウス モデル2で機能することを示した。ただし、内耳疾患の大部分が効果的に扱われません全身投与による内耳の3,4薬へのアクセスを制限する血液迷路障壁のため。対照的に、局所薬物配送戦略は内耳障害をより効率的に扱うことができます。確かに、内耳は潜在的薬剤の局所投与; の理想的なターゲット1 サイトの拡散や注射後薬の普及を促進する液体でみたされている、それは比較的孤立した隣接臓器から副作用5,6を制限します。
局所薬物配送戦略鼓と intralabyrinthine のメソッドがあります。鼓の経路の有効性は大きく薬物透過 RWM3,4,7,8薬の滞留時間と丸い窓膜 (RWM) に依存します。したがって、薬物や、RWM を突き通すことができない試薬の配信に適したはありません。Intralabyrinthine 方法は、薬の高用量との広範な分布の結果、内耳に直接接種を含みます。ただし、intralabyrinthine 方法は繊細な手術を必要とし、侵略的、内耳機能へのダメージに 。現在、人間9で使用するため十分に安全であることは実証されていないと、intralabyrinthine 注射薬は動物実験でのみ使用されます。したがって、手術の手順を簡略化する必要がありますと怪我のリスク低減、クリニックに intralabyrinthine アプローチを翻訳します。
RWM5,10、11 scala メディア12,13,14スカラー座索注入による動物のいくつかの intralabyrinthine アプローチが評価され15,16、スカラー座附17、18,16,2019,半規管、および内リンパ嚢21。それぞれのアプローチには長所と短所6。RWM による配信は、新生児マウス5,22の非外科的です。ただし、軽度の聴力損失は RWM 注入23、中耳手術24後胸水のため後成体マウスで観察されます。感覚上皮を含む内の空間に直接試薬の注入が含まれます、Scala 媒体注入ターゲット エンド臓器12,14,の高い試薬濃度を実現します。25,26。 このアプローチ複雑な手順が必要ですし、生後 5 (P5) よりも後に実行された場合、聴覚閾値の有意な上昇の結果25,は27、そのアプリケーションを制限します。
Canalostomy は特に成体マウス16,18,28,29,30である内側の耳に与えるダメージを最小限を引き起こす intralabyrinthine の上記のアプローチと比較して、保護効果と並進の側面の評価にとって重要です。さらに、齧歯類では半規管は肺嚢胞手術を容易にし、手術中に中耳の障害を回避する以外にあります。クリニック、半規管の手術では、難治性良性発作性頭位めまい症31,32,33, canalostomy の臨床的可能性を示唆しているが使用されます。以来、まず、河本らによって記述されていた。マウス内耳18,19,28,29 にウイルスのベクトル、siRNA、幹細胞は、アミノグリコシド系などの様々 な試薬を提供する16年では、canalostomy が使用されています ,34,35,36,37。Canalostomy によるアデノ随伴ウイルス (AAV) ベクターの接種感覚上皮における外来遺伝子の過剰発現と蝸牛と前庭エンドの臓器18,28,の一次ニューロンの特性を有効にする29,30。Canalostomy による遺伝子治療を有バランス機能を復元し、人間アッシャー症候群19、その canalostomy が cochleovestibular の遺伝的疾患に対する遺伝子治療の研究に有用のマウスモデルで聴覚を向上させます。Canalostomy による間葉系幹細胞の移植は、蝸牛線維細胞と急性の感音難聴の聴力損失35のラットモデルにおける聴力回復の再編成の結果します。また、前庭神経病変18,34,38, を確立する内耳にアミノグリコシド系抗生物質を導入する canalostomy を使用できます、18を必要な場合、複数の注射を実行できます。,34。
本稿で述べる、成人および新生児マウスにおける canalostomy 技術。緑色蛍光タンパク質 (GFP) 遺伝子 (AAV8-GFP) とストレプトマイシン、高速グリーン色素と AAV 血清型 8 (AAV8) などを含むさまざまな試薬を接種したマウス内耳 canalostomy 後即時および長期的な成果を評価するために。

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canalostomy as a surgical approach to local drug delivery into the inner ears of adult and neonatal mice

内耳に治療薬の局所投与は、内耳疾患に対する有望な治療法です。半規管 (canalostomy) を注入は、内耳への薬剤の局所投与に有用なアプローチをする示されています。この記事の目的は、について、詳しく説明、成人と新生児の両方のマウスの canalostomy に関与する手技です。蝸牛と前庭のエンドの聴覚に損傷が少なく臓器で注入された試薬の広範な分布を容易に、canalostomy として高速グリーン色素と緑色蛍光タンパク質遺伝子をアデノ随伴ウイルス血清型 8 によって示されると前庭の機能。成人および新生児マウス; 手術が実施されました確かに、必要な場合は、複数の手術を実行でした。結論としては、canalostomy は成人および新生児マウス内耳に薬物送達への効果的かつ安全なアプローチで、将来的に人間の内耳疾患を治療に使用することがあります。

高速グリーンの色素は、成人および新生児マウス内耳における即時分布を評価するための PSC に注入されました。手術 (図 4) 直後後、蝸牛、前庭、半規管の中で染料が検出されました。
安全性と内耳遺伝子送達用 canalostomy の効率を評価するには、AAV8 GFP は成人および新生児マウス内耳に注入されま?...

Watch this Scientific Journal Video about Canalostomy As a Surgical Approach to Local Drug Delivery into the Inner Ears of Adult and Neonatal Mice at JoVE.com

Canalostomy As a Surgical Approach to Local Drug Delivery into the Inner Ears of Adult and Neonatal Mice

成人および新生児マウス内耳への薬剤の局所投与への外科的アプローチとしての Canalostomy

ここで我々 は聴覚と前庭の機能に最小限のダメージで半規管を介して成人および新生児マウスの内耳への薬剤の局所投与を可能にする canalostomy の手順をについて説明します。このメソッドは、マウス内耳へのウイルスのベクトル、医薬・小分子を接種する使用ことができます。

Local delivery of therapeutic drugs into the inner ear is a promising therapy for inner ear diseases. Injection through semicircular canals (canalostomy) ...

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