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Correction: AAV2-VEGF-B gene therapy failed to induce angiogenesis in ischemic porcine myocardium due to inflammatory responses 更正:由于炎症反应,AAV2-VEGF-B 基因疗法未能诱导缺血猪心肌的血管生成。
IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-08-26 DOI: 10.1038/s41434-024-00481-x
Henna Korpela, Jaakko Lampela, Jonna Airaksinen, Niko Järveläinen, Satu Siimes, Kaisa Valli, Tiina Nieminen, Minttu Turunen, Maria Grönman, Antti Saraste, Juhani Knuuti, Mikko Hakulinen, Pekka Poutiainen, Vesa Kärjä, Jussi Nurro, Seppo Ylä-Herttuala
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引用次数: 0
Lentiviral vector gene therapy and CFTR modulators show comparable effectiveness in cystic fibrosis rat airway models 慢病毒载体基因疗法和 CFTR 调节剂在囊性纤维化大鼠气道模型中显示出相当的疗效。
IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-08-25 DOI: 10.1038/s41434-024-00480-y
Alexandra McCarron, Kak-Ming Ling, Samuel T. Montgomery, Kelly M. Martinovich, Patricia Cmielewski, Nathan Rout-Pitt, Anthony Kicic, David Parsons, Martin Donnelley
Mutation-agnostic treatments such as airway gene therapy have the potential to treat any individual with cystic fibrosis (CF), irrespective of their CF transmembrane conductance regulator (CFTR) gene variants. The aim of this study was to employ two CF rat models, Phe508del and CFTR knockout (KO), to assess the comparative effectiveness of CFTR modulators and lentiviral (LV) vector-mediated gene therapy. Cells were isolated from the tracheas of rats and used to establish air-liquid interface (ALI) cultures. Phe508del rat ALIs were treated with the modulator combination, elexacaftor-tezacaftor-ivacaftor (ETI), and separate groups of Phe508del and KO tracheal epithelial cells were treated with LV-CFTR followed by differentiation at ALI. Ussing chamber measurements were performed to assess CFTR function. ETI-treated Phe508del ALI cultures demonstrated CFTR function that was 59% of wild-type level, while gene-addition therapy restored Phe508del to 68% and KO to 47% of wild-type level, respectively. Our findings show that rat Phe508del-CFTR protein can be successfully rescued with ETI treatment, and that CFTR gene-addition therapy provides significant CFTR correction in Phe508del and KO ALI cultures to levels that were comparable to ETI. These findings highlight the potential of an LV vector-based gene therapy for the treatment of CF lung disease.
气道基因疗法等突变识别疗法有可能治疗任何囊性纤维化(CF)患者,无论其CF跨膜传导调节器(CFTR)基因变异情况如何。本研究的目的是利用两种CF大鼠模型(Phe508del和CFTR基因敲除(KO))来评估CFTR调节剂和慢病毒(LV)载体介导的基因疗法的比较效果。从大鼠气管中分离出细胞,用于建立气液界面(ALI)培养物。用调节剂组合 elexacaftor-tezacaftor-ivacaftor (ETI) 处理 Phe508del 大鼠 ALI,用 LV-CFTR 处理不同组的 Phe508del 和 KO 气管上皮细胞,然后在 ALI 上进行分化。进行乌星室测量以评估 CFTR 功能。经 ETI 处理的 Phe508del ALI 培养物的 CFTR 功能仅为野生型的 59%,而经基因添加疗法处理的 Phe508del 和 KO 细胞的 CFTR 功能分别恢复到野生型的 68% 和 47%。我们的研究结果表明,大鼠 Phe508del-CFTR 蛋白可通过 ETI 治疗成功挽救,而 CFTR 基因添加疗法可显著纠正 Phe508del 和 KO ALI 培养物中的 CFTR,使其达到与 ETI 相当的水平。这些发现凸显了基于 LV 载体的基因疗法治疗 CF 肺病的潜力。
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引用次数: 0
Retraction Note: Oncolysis of pancreatic tumour cells by a γ34.5-deleted HSV-1 does not rely upon Ras-activation, but on the PI 3-kinase pathway 撤稿说明:删除了γ34.5的HSV-1对胰腺肿瘤细胞的肿瘤溶解不依赖于Ras激活,而是依赖于PI 3-激酶途径。
IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-08-16 DOI: 10.1038/s41434-024-00478-6
F. Sarinella, A. Calistri, P. Sette, G. Palù, C. Parolin
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引用次数: 0
Correction: Alternative oxidase encoded by sequence-optimized and chemically-modified RNA transfected into mammalian cells is catalytically active 更正:转染到哺乳动物细胞中的经过序列优化和化学修饰的 RNA 所编码的替代氧化酶具有催化活性。
IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-08-15 DOI: 10.1038/s41434-024-00473-x
Luca Giordano, Manish K. Aneja, Natascha Sommer, Nasim Alebrahimdehkordi, Alireza Seraji, Norbert Weissmann, Carsten Rudolph, Christian Plank, Howard T. Jacobs, Marten Szibor
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引用次数: 0
Efficacy of an AAV vector encoding a thermostable form of glucocerebrosidase in alleviating symptoms in a Gaucher disease mouse model 编码恒温型葡萄糖脑苷脂酶的 AAV 载体在减轻戈谢病小鼠模型症状方面的功效
IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-08-15 DOI: 10.1038/s41434-024-00476-8
Ivan Milenkovic, Shani Blumenreich, Ariel Hochfelder, Aviya Azulay, Inbal E. Biton, Mirie Zerbib, Roni Oren, Michael Tsoory, Tammar Joseph, Sarel J. Fleishman, Anthony H. Futerman
Almost all attempts to date at gene therapy approaches for monogenetic disease have used the amino acid sequences of the natural protein. In the current study, we use a designed, thermostable form of glucocerebrosidase (GCase), the enzyme defective in Gaucher disease (GD), to attempt to alleviate neurological symptoms in a GD mouse that models type 3 disease, i.e. the chronic neuronopathic juvenile subtype. Upon injection of an AAVrh10 (adeno-associated virus, serotype rh10) vector containing the designed GCase (dGCase) into the left lateral ventricle of Gba−/−;Gbatg mice, a significant improvement in body weight and life-span was observed, compared to injection of the same mouse with the wild type enzyme (wtGCase). Moreover, a reduction in levels of glucosylceramide (GlcCer), and an increase in levels of GCase activity were seen in the right hemisphere of Gba−/−;Gbatg mice, concomitantly with a significant improvement in motor function, reduction of neuroinflammation and a reduction in mRNA levels of various genes shown previously to be elevated in the brain of mouse models of neurological forms of GD. Together, these data pave the way for the possible use of modified proteins in gene therapy for lysosomal storage diseases and other monogenetic disorders.
迄今为止,几乎所有针对单基因遗传病的基因治疗方法都使用了天然蛋白质的氨基酸序列。在目前的研究中,我们使用了一种设计好的葡萄糖脑苷脂(GCase)恒温形式(GCase是戈谢病(GD)中存在缺陷的酶类),试图减轻3型疾病(即慢性神经病变幼年亚型)模型GD小鼠的神经症状。将含有设计的 GCase(dGCase)的 AAVrh10(腺相关病毒,血清型 rh10)载体注射到 Gba-/-;Gbatg小鼠的左心室后,与注射野生型酶(wtGCase)的小鼠相比,体重和寿命都有显著改善。此外,Gba-/-;Gbatg 小鼠右半球葡萄糖甘油酰胺(GlcCer)水平降低,GCase 活性水平升高,同时运动功能明显改善,神经炎症减轻,以前在神经形式 GD 小鼠模型脑中升高的各种基因的 mRNA 水平降低。这些数据为在溶酶体贮积疾病和其他单基因遗传疾病的基因治疗中使用修饰蛋白铺平了道路。
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引用次数: 0
The AAV2.7m8 capsid packages a higher degree of heterogeneous vector genomes than AAV2 与 AAV2 相比,AAV2.7m8 的包囊包装异质载体基因组的程度更高。
IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-08-12 DOI: 10.1038/s41434-024-00477-7
Mengtian Cui, Qin Su, Mitchell Yip, Jackson McGowan, Claudio Punzo, Guangping Gao, Phillip W. L. Tai
Recombinant adeno-associated virus (rAAV) vectors are currently the only proven vehicles for treating ophthalmological diseases through gene therapy. A wide range of gene therapy programs that target ocular diseases are currently being pursued. Nearly 20 years of research have gone into enhancing the efficacy of targeting retinal tissues and improving transgene delivery to specific cell types. The engineered AAV capsid, AAV2.7m8 is currently among the best capsids for transducing the retina following intravitreal (IVT) injection. However, adverse effects, including intraocular inflammation, have been reported following retinal administration of AAV2.7m8 vectors in clinical trials. Furthermore, we have consistently observed that AAV2.7m8 exhibits low packaging titers irrespective of the vector construct design. In this report, we found that AAV2.7m8 packages vector genomes with a higher degree of heterogeneity than AAV2. We also found that genome-loaded AAV2.7m8 stimulated the infiltration of microglia in mouse retinas following IVT administration, while the response to genome-loaded AAV2 and empty AAV2.7m8 capsids produced much milder responses. This finding suggests that IVT administration of AAV2.7m8 vectors may stimulate retinal immune responses in part because of its penchant to package and deliver non-unit length genomes.
重组腺相关病毒(rAAV)载体是目前通过基因疗法治疗眼科疾病的唯一行之有效的载体。目前,针对眼科疾病的基因治疗项目种类繁多。近 20 年来,人们一直在研究如何提高针对视网膜组织的疗效,以及如何改善转基因向特定细胞类型的传递。目前,AAV2.7m8 的工程化囊壳是玻璃体内注射(IVT)转导视网膜的最佳囊壳之一。然而,在临床试验中,AAV2.7m8 载体在视网膜内给药后出现了不良反应,包括眼内炎症。此外,我们一直观察到,无论载体构建设计如何,AAV2.7m8 都表现出较低的包装滴度。在本报告中,我们发现与 AAV2 相比,AAV2.7m8 包装载体基因组的异质性更高。我们还发现,IVT 给药后,装载基因组的 AAV2.7m8 会刺激小鼠视网膜中的小胶质细胞浸润,而装载基因组的 AAV2 和空 AAV2.7m8 胶囊产生的反应要轻微得多。这一发现表明,静脉注射AAV2.7m8载体可能会刺激视网膜免疫反应,部分原因是它喜欢包装和传递非单位长度的基因组。
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引用次数: 0
Correction: Andrew C. G. Porter (1955–2023) 更正:安德鲁-波特(1955-2023)。
IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-08-07 DOI: 10.1038/s41434-024-00474-w
Rafael J. Yáñez-Muñoz, Jane E. Itzhaki
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引用次数: 0
Correction: Limited potential of AAV-mediated gene therapy in transducing human mesenchymal stem cells for bone repair applications 更正:AAV 介导的基因疗法在转导人类间充质干细胞用于骨修复方面的潜力有限。
IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-08-01 DOI: 10.1038/s41434-024-00472-y
Sofia Bougioukli, Morgan Chateau, Heidy Morales, Venus Vakhshori, Osamu Sugiyama, Daniel Oakes, Donald Longjohn, Paula Cannon, Jay R. Lieberman
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引用次数: 0
Andrew C. G. Porter (1955–2023) 安德鲁-波特(Andrew C. G. Porter,1955-2023 年)。
IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-07-29 DOI: 10.1038/s41434-024-00470-0
Rafael J. Yáñez-Muñoz, Jane E. Itzhaki
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引用次数: 0
Preclinical evaluation of tissue-selective gene therapies for congenital generalised lipodystrophy 先天性全身性脂肪营养不良的组织选择性基因疗法的临床前评估
IF 4.6 3区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2024-07-28 DOI: 10.1038/s41434-024-00471-z
Mansi Tiwari, Ahlima Roumane, Nadine Sommer, Weiping Han, Mirela Delibegović, Justin J. Rochford, George D. Mcilroy
Lipodystrophy is a rare disorder which can be life-threatening. Here individuals fail to develop or maintain appropriate adipose tissue stores. This typically causes severe metabolic complications, including hepatic steatosis and lipoatrophic diabetes. There is no cure for lipodystrophy, and treatment options remain very limited. Here we evaluate whether tissue-selective adeno-associated virus (AAV) vectors can provide a targeted form of gene therapy for lipodystrophy, using a preclinical lipodystrophic mouse model of Bscl2 deficiency. We designed AAV vectors containing the mini/aP2 or thyroxine-binding globulin promoter to selectively target adipose or liver respectively. The AAV-aP2 vectors also contained the liver-specific microRNA-122 target sequence, restricting hepatic transgene expression. Systemic delivery of AAV-aP2 vectors overexpressing human BSCL2 restored adipose tissue development and metabolic health in lipodystrophic mice without detectable expression in the liver. High doses (1 × 1012 GCs) of liver-selective vectors led to off target expression and adipose tissue development, whilst low doses (1 × 1010 GCs) expressed selectively and robustly in the liver but did not improve metabolic health. This reveals that adipose tissue-selective, but not liver directed, AAV-mediated gene therapy is sufficient to substantially recover metabolic health in generalised lipodystrophy. This provides an exciting potential new avenue for an effective, targeted, and thereby safer therapeutic intervention.
脂肪营养不良是一种罕见的疾病,可危及生命。在这种疾病中,患者无法形成或维持适当的脂肪组织储存。这通常会导致严重的代谢并发症,包括肝脂肪变性和脂肪营养性糖尿病。脂肪营养不良无法治愈,治疗方案也非常有限。在这里,我们利用临床前脂肪营养不良小鼠模型 Bscl2 缺乏症,评估组织选择性腺相关病毒(AAV)载体能否为脂肪营养不良提供一种靶向性基因疗法。我们设计了含有 mini/aP2 或甲状腺素结合球蛋白启动子的 AAV 载体,分别选择性地靶向脂肪或肝脏。AAV-aP2载体还含有肝脏特异性microRNA-122靶序列,限制了肝脏转基因的表达。全身性递送过表达人BSCL2的AAV-aP2载体可恢复脂肪营养不良小鼠的脂肪组织发育和代谢健康,而肝脏中却检测不到表达。高剂量(1 × 1012 GCs)的肝脏选择性载体会导致脱靶表达和脂肪组织发育,而低剂量(1 × 1010 GCs)则会在肝脏中选择性地表达,但不会改善代谢健康。这揭示出,脂肪组织选择性而非肝脏定向的 AAV 介导的基因疗法足以大幅恢复全身性脂肪营养不良患者的代谢健康。这为有效、有针对性、从而更安全的治疗干预提供了一个令人兴奋的潜在新途径。
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Gene Therapy
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