Article
Biochemistry & Molecular Biology
Francesco Aulicino, Martin Pelosse, Christine Toelzer, Julien Capin, Erwin Ilegems, Parisa Meysami, Ruth Rollarson, Per-Olof Berggren, Mark Simon Dillingham, Christiane Schaffitzel, Moin A. Saleem, Gavin Welsh, Imre Berger
Summary: This article addresses the challenge of delivering multiple components into living cells for precise gene-editing. The researchers utilize baculovirus, which has a high cargo capacity, to successfully replace multiple exons and restore protein expression in cells derived from patients with nephrotic syndrome. The study also demonstrates the efficient search and replace of DNA without detectable indels.
NUCLEIC ACIDS RESEARCH
(2022)
Review
Chemistry, Multidisciplinary
Lin Kang, Shilin Jin, Jiayi Wang, Zhongyue Lv, Chengqi Xin, Chengcheng Tan, Mengke Zhao, Liang Wang, Jing Liu
Summary: In recent years, adeno-associated virus (AAV) has become the most important vector for central nervous system (CNS) gene therapy. AAV has shown promising results in treating CNS diseases that cannot be treated with drugs. This review summarizes the therapeutic progress, challenges, limitations, and solutions for AAV-based gene therapy in 14 types of CNS diseases.
JOURNAL OF CONTROLLED RELEASE
(2023)
Article
Virology
Renuka Rao, Melad Farraha, Grant J. Logan, Sindhu Igoor, Cindy Y. Kok, James J. H. Chong, Ian E. Alexander, Eddy Kizana
Summary: This study compared two production methods for cardiotropic rAAVs, finding that rAAV produced by the traditional HEK293 method outperformed vector produced using the baculovirus/Sf9 system in vitro and in vivo. This underscores the importance of thorough assessment of vector performance when using diverse rAAV production methods.
Review
Biochemical Research Methods
Jihad El Andari, Dirk Grimm
Summary: Over the past two decades, gene therapy vectors based on wild-type AAV have proven safe and effective in clinical trials, while engineered synthetic AAV capsids show promising potential. There is a growing demand for new processes to accommodate the expanding range of AAV capsid variants.
BIOTECHNOLOGY JOURNAL
(2021)
Article
Biochemical Research Methods
Aurelien Jacob, Laurie Brun, Paloma Jimenez Gil, Lucie Menard, Mohammed Bouzelha, Frederic Broucque, Aline Roblin, Luk H. Vandenberghe, Oumeya Adjali, Cecile Robin, Achille Francois, Veronique Blouin, Magalie Penaud-Budloo, Eduard Ayuso
Summary: Manufacturing viral vectors for gene delivery is challenging, with a scalable baculovirus-insect cell platform being used for producing rAAV vectors. A faster and safer method based on homologous recombination (HR) has been investigated to avoid technical constraints and safety concerns associated with the Tn7 transposition method. The HR system offers increased stability and avoids undesirable bacterial genes, ensuring the generation of safer rAAV biotherapeutic products.
BIOTECHNOLOGY JOURNAL
(2021)
Article
Microbiology
Lionel Galibert, Aurelien Jacob, Adrien Savy, Yohann Dickx, Delphine Bonnin, Christophe Lecomte, Lise Rivollet, Peggy Sanatine, Marjorie Boutin Fontaine, Christine Le Bec, Otto-Wilhelm Merten
Summary: Large-scale manufacturing of rAAV remains a challenge, with the Monobac system showing higher yields of rAAV vectors and lower DNA contamination compared to dual baculovirus systems.
Article
Microbiology
Xiaoyue Zhang, Aiping He, Yuyu Zong, Houlu Tian, Zhihui Zhang, Kaixia Zhao, Xiaodong Xu, Hongying Chen
Summary: Baculovirus expression vector system (BEVS) is a versatile platform for protein production in insect cells. This study deleted 14 DNA fragments from AcMNPV genome, found that 11 of them were dispensable for virus replication, and showed improved protein production by combining the deletions of some fragments. These findings have the potential to further improve BEVS.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Ricardo Correia, Barbara Fernandes, Rute Castro, Hikaru Nagaoka, Eizo Takashima, Takafumi Tsuboi, Akihisa Fukushima, Nicola K. Viebig, Hilde Depraetere, Paula M. Alves, Antonio Roldao
Summary: This study improved the production of the malaria vaccine candidate PfRipr5 by using insect and human cell hosts as well as process-optimizing strategies. Maximizing protein expression and improving expression vector and culture conditions significantly increased the production yield of PfRipr5.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Engineering, Chemical
Ming-Hsiang Chen, Muhammed Muhsin Varikkodan, Ting-Hui Lin, Chien-Min Chiang, Indah Permata Sari, Ming-Der Perng, Tzong-Yuan Wu
Summary: A polycistronic baculovirus vector was developed to express a bivalent vaccine against classical swine fever virus (CSFV) and porcine circovirus type 2 (PCV2), along with an immunomodulator protein and a selection marker. The study showed successful expression of all proteins and demonstrated the efficacy of the vaccine in enhancing immune response.
Article
Genetics & Heredity
Richard J. L. F. Lemmers, Patrick J. van der Vliet, Ana Blatnik, Judit Balog, Janez Zidar, Don Henderson, Rianne Goselink, Stephen J. Tapscott, Nicol C. Voermans, Rabi Tawil, George W. A. M. Padberg, Baziel G. M. van Engelen, Silvere M. van der Maarel
Summary: This study identified two FSHD families in which the disease is caused by a de novo D4Z4 repeat exchange between chromosomes 4 and 10, leading to repeat contraction and DUX4 expression from chromosome 10. The genetic lesion causal to FSHD in these families is physically separated from other candidate genes on chromosome 4. Muscle cell cultures from affected family members exhibited the characteristic molecular features of FSHD, indicating that DUX4 derepression is the dominant disease pathway for FSHD.
JOURNAL OF MEDICAL GENETICS
(2022)
Article
Multidisciplinary Sciences
Yidong Wu, Xiaoling Wan, Dongdong Zhao, Xuxu Chen, Yujie Wang, Xinxin Tang, Ju Li, Siwei Li, Xiaodong Sun, Changhao Bi, Xueli Zhang
Summary: The study demonstrates the successful restoration of visual functions in a mouse model of retinitis pigmentosa using base editing technology. The researchers propose a translational therapeutic solution for the treatment of retinitis pigmentosa in humans, which may accelerate the development of base-editing based gene therapies.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Tessy A. H. Hick, Corinne Geertsema, Maurice G. L. Henquet, Dirk E. Martens, Stefan W. Metz, Gorben P. Pijlman
Summary: This study successfully produced trimeric, glycosylated CHIKV spikes in insect cells, providing a valuable resource for vaccine research.
Article
Biotechnology & Applied Microbiology
Ramyar Molania, Momeneh Foroutan, Johann A. Gagnon-Bartsch, Luke C. Gandolfo, Aryan Jain, Abhishek Sinha, Gavriel Olshansky, Alexander Dobrovic, Anthony T. Papenfuss, Terence P. Speed
Summary: Accurate identification and removal of unwanted variation in RNA-seq data are crucial for meaningful downstream analyses. Our PRPS strategy with RUV-III normalization effectively addresses this issue and can be applied to integrate and normalize large transcriptomic datasets from multiple sources.
NATURE BIOTECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Agata Antepowicz, Omar Habib, Freja Kirsebom, Cecilia Johansson, Deborah R. Gill, Stephen C. Hyde
Summary: In this study, gene delivery approaches using recombinant adeno-associated virus and simian immunodeficiency virus vectors were utilized to achieve sustained in vivo production of Palivizumab in a murine model. Pre-treatment with Palivizumab-expressing vectors provided complete protection against RSV-induced weight loss. This approach offers prophylaxis against RSV infection, potentially reducing treatment costs in vulnerable populations.
SCIENTIFIC REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Wanru Qin, Guangchao Xu, Phillip W. L. Tai, Chunmei Wang, Li Luo, Chengjian Li, Xun Hu, Jianxin Xue, You Lu, Qiao Zhou, Qiang Wei, Tianfu Wen, Jiankun Hu, Yuanyuan Xiao, Li Yang, Weimin Li, Terence R. Flotte, Yuquan Wei, Guangping Gao
Summary: The study revealed that over 80% of patients across nine types of carcinoma had AAV present in their bodies, with AAV genomes equally abundant in tumors and adjacent normal tissues, but lacking clonality.