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Warzak DA, Pike WA, Luttgeharm KD. Capillary electrophoresis methods for determining the IVT mRNA critical quality attributes of size and purity. SLAS Technol 2023; 28:369-374. [PMID: 37833008 DOI: 10.1016/j.slast.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 10/15/2023]
Abstract
One result of the Covid-19 pandemic has been an increased awareness of IVT mRNA vaccines and the speed at which they can be produced for disease outbreaks. Currently the only approved IVT mRNA therapeutics are the Covid-19 vaccines, however IVT mRNA is being investigated for other non-Covid prophylactic vaccines, therapeutics, and therapeutic vaccines. IVT mRNAs can range from less than 100 nt in length to longer than 9,000 nt. When producing any IVT mRNA, quality control of the IVT mRNA is essential to ensure that the product is the correct length and does not contain truncated or degraded mRNA. Capillary gel electrophoresis provides high resolution separations of the IVT mRNA of interest from the degraded or truncated impurities allowing for the accurate purity assessment of IVT mRNA. Specialized capillary electrophoresis gels can also be used to provide analysis of purified poly(A) tails enabling characterization of multiple Critical Quality Attributes on a single platform. Here we describe methods for the purity assessment of IVT mRNAs through either 6,000 or 9,000 nt and determination of poly(A) tail length using different capillary gel electrophoresis methods.
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Daly O, Mahiny AJ, Majeski S, McClintock K, Reichert J, Boros G, Szabó GT, Reinholz J, Schreiner P, Reid S, Lam K, Lepper M, Adler M, Meffen T, Heyes J, Karikó K, Lutwyche P, Vlatkovic I. ASL mRNA-LNP Therapeutic for the Treatment of Argininosuccinic Aciduria Enables Survival Benefit in a Mouse Model. Biomedicines 2023; 11:1735. [PMID: 37371829 DOI: 10.3390/biomedicines11061735] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/05/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023] Open
Abstract
Argininosuccinic aciduria (ASA) is a metabolic disorder caused by a deficiency in argininosuccinate lyase (ASL), which cleaves argininosuccinic acid to arginine and fumarate in the urea cycle. ASL deficiency (ASLD) leads to hepatocyte dysfunction, hyperammonemia, encephalopathy, and respiratory alkalosis. Here we describe a novel therapeutic approach for treating ASA, based on nucleoside-modified messenger RNA (modRNA) formulated in lipid nanoparticles (LNP). To optimize ASL-encoding mRNA, we modified its cap, 5' and 3' untranslated regions, coding sequence, and the poly(A) tail. We tested multiple optimizations of the formulated mRNA in human cells and wild-type C57BL/6 mice. The ASL protein showed robust expression in vitro and in vivo and a favorable safety profile, with low cytokine and chemokine secretion even upon administration of increasing doses of ASL mRNA-LNP. In the ASLNeo/Neo mouse model of ASLD, intravenous administration of the lead therapeutic candidate LNP-ASL CDS2 drastically improved the survival of the mice. When administered twice a week lower doses partially protected and 3 mg/kg LNP-ASL CDS2 fully protected the mice. These results demonstrate the considerable potential of LNP-formulated, modified ASL-encoding mRNA as an effective alternative to AAV-based approaches for the treatment of ASA.
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Affiliation(s)
- Owen Daly
- Genevant Sciences Corporation, Vancouver, BC V5T 4T5, Canada
| | | | - Sara Majeski
- Genevant Sciences Corporation, Vancouver, BC V5T 4T5, Canada
| | | | | | - Gábor Boros
- BioNTech SE, An der Goldgrube 12, 55131 Mainz, Germany
| | | | | | - Petra Schreiner
- Genevant Sciences Corporation, Vancouver, BC V5T 4T5, Canada
| | - Steve Reid
- Genevant Sciences Corporation, Vancouver, BC V5T 4T5, Canada
| | - Kieu Lam
- Genevant Sciences Corporation, Vancouver, BC V5T 4T5, Canada
| | - Marlen Lepper
- BioNTech SE, An der Goldgrube 12, 55131 Mainz, Germany
| | - Melanie Adler
- BioNTech SE, An der Goldgrube 12, 55131 Mainz, Germany
| | - Tracy Meffen
- Genevant Sciences Corporation, Vancouver, BC V5T 4T5, Canada
| | - James Heyes
- Genevant Sciences Corporation, Vancouver, BC V5T 4T5, Canada
| | | | - Pete Lutwyche
- Genevant Sciences Corporation, Vancouver, BC V5T 4T5, Canada
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Huang C, Duan X, Wang J, Tian Q, Ren Y, Chen K, Zhang Z, Li Y, Feng Y, Zhong K, Wang Y, Zhou L, Guo G, Song X, Tong A. Lipid Nanoparticle Delivery System for mRNA Encoding B7H3-redirected Bispecific Antibody Displays Potent Antitumor Effects on Malignant Tumors. Adv Sci (Weinh) 2023; 10:e2205532. [PMID: 36403209 PMCID: PMC9875623 DOI: 10.1002/advs.202205532] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Indexed: 06/16/2023]
Abstract
The therapeutic use of bispecific T-cell engaging (BiTE) antibodies has shown great potential for treating malignancies. BiTE can simultaneously engage CD3ε on T cells and tumor antigen on cancer cells, thus exerting an effective antitumor effect. Nevertheless, challenges in production, manufacturing, and short serum half-life of BiTE have dampened some of the promise and impeded the pace of BiTE-based therapeutics to combat diseases. Nowadays, in vitro-transcribed mRNA has achieved programmed production, which is more flexible and cost-effective than the traditional method of producing recombinant antibody. Here, the authors have developed a BiTE-based mRNA treatment by encapsulating mRNA encoding B7H3×CD3 BiTE into a novel ionizable lipid nanoparticles (LNPs). The authors have found that LNPs have high transfection efficiency, and the hepatosplenic targeting capability of produce high concentrations of BiTE. Above all, a single intravenous injection of BiTE mRNA-LNPs could achieve high levels of protein expression in vivo and significantly prolonged the half-life of the BiTE, which can elicit robust and durable antitumor efficacy against hematologic malignancies and melanoma. Therefore, their results suggested that the therapeutic strategy based on mRNA expression of B7H3×CD3 BiTE is of potential research value and has promising clinical application prospects.
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Affiliation(s)
- Cheng Huang
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
| | - Xing Duan
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
| | - Jichao Wang
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
| | - Qingqing Tian
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
| | - Yangmei Ren
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
| | - Kepan Chen
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
| | - Zongliang Zhang
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
| | - Yuanyou Li
- Department of NeurosurgeryWest China HospitalWest China Medical SchoolSichuan UniversityChengduSichuan Province610041China
| | - Yunyu Feng
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
| | - Kunhong Zhong
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
| | - Yuelong Wang
- Department of NeurosurgeryWest China HospitalWest China Medical SchoolSichuan UniversityChengduSichuan Province610041China
| | - Liangxue Zhou
- Department of NeurosurgeryWest China HospitalWest China Medical SchoolSichuan UniversityChengduSichuan Province610041China
| | - Gang Guo
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
| | - Xiangrong Song
- Department of Critical Care Medicineand Department of Pancreatic SurgeryFrontiers Science Center for Disease‐related Molecular NetworkState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSichuan UniversityChengduSichuan Province610213China
| | - Aiping Tong
- State Key Laboratory of Biotherapy and Cancer CenterResearch Unit of Gene and ImmunotherapyChinese Academy of Medical SciencesCollaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengduSichuan Province610041China
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Abstract
In 1975, Milstein and Köhler revolutionized the medical world with the development of the hybridoma technique to produce monoclonal antibodies. Since then, monoclonal antibodies have entered almost every branch of biomedical research. Antibodies are now used as frontline therapeutics in highly divergent indications, ranging from autoimmune disease over allergic asthma to cancer. Wider accessibility and implementation of antibody-based therapeutics is however hindered by manufacturing challenges and high development costs inherent to protein-based drugs. For these reasons, alternative ways are being pursued to produce and deliver antibodies more cost-effectively without hampering safety. Over the past decade, messenger RNA (mRNA) based drugs have emerged as a highly appealing new class of biologics that can be used to encode any protein of interest directly in vivo. Whereas current clinical efforts to use mRNA as a drug are mainly situated at the level of prophylactic and therapeutic vaccination, three recent preclinical studies have addressed the feasibility of using mRNA to encode therapeutic antibodies directly in vivo. Here, we highlight the potential of mRNA-based approaches to solve several of the issues associated with antibodies produced and delivered in protein format. Nonetheless, we also identify key hurdles that mRNA-based approaches still need to take to fulfill this potential and ultimately replace the current protein antibody format.
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Affiliation(s)
- Lien Van Hoecke
- VIB Center for Medical Biotechnology, VIB, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
| | - Kenny Roose
- VIB Center for Medical Biotechnology, VIB, Ghent, Belgium.,Departement of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
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Kukreja A, Lasaro M, Cobaugh C, Forbes C, Tang JP, Gao X, Martin-Higueras C, Pey AL, Salido E, Sobolov S, Subramanian RR. Systemic Alanine Glyoxylate Aminotransferase mRNA Improves Glyoxylate Metabolism in a Mouse Model of Primary Hyperoxaluria Type 1. Nucleic Acid Ther 2019; 29:104-113. [PMID: 30676254 DOI: 10.1089/nat.2018.0740] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Primary Hyperoxaluria Type 1 (PH1) is an autosomal recessive disorder of glyoxylate metabolism. Loss of alanine glyoxylate aminotransferase (AGT) function to convert intermediate metabolite glyoxylate to glycine causes the accumulation and reduction of glyoxylate to glycolate, which eventually is oxidized to oxalate. Excess oxalate in PH1 patients leads to the formation and deposition of calcium oxalate crystals in the kidney and urinary tract. Oxalate crystal deposition causes a decline in renal function, systemic oxalosis, and eventually end-stage renal disease and premature death. mRNA-based therapies are a new class of drugs that work by replacing the missing enzyme. mRNA encoding AGT has the potential to restore normal glyoxylate to glycine metabolism, thus preventing the buildup of calcium oxalate in various organs. Panels of codon-optimized AGT mRNA constructs were screened in vitro and in wild-type mice for the production of a functional AGT enzyme. Two human constructs, wild-type and engineered AGT (RHEAM), were tested in Agxt-/- mice. Repeat dosing in Agxt-/- mice resulted in a 40% reduction in urinary oxalate, suggesting therapeutic benefit. These studies suggest that mRNA encoding AGT led to increased expression and activity of the AGT enzyme in liver that translated into decrease in urinary oxalate levels. Taken together, our data indicate that AGT mRNA may have the potential to be developed into a therapeutic for PH1.
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Affiliation(s)
- Anjli Kukreja
- 1 Research, Alexion Pharmaceuticals, Inc., New Haven, Connecticut
| | - Melissa Lasaro
- 1 Research, Alexion Pharmaceuticals, Inc., New Haven, Connecticut
| | | | - Chris Forbes
- 1 Research, Alexion Pharmaceuticals, Inc., New Haven, Connecticut
| | - Jian-Ping Tang
- 2 Clinical Pharmacology, Alexion Pharmaceuticals, Inc., New Haven, Connecticut
| | - Xiang Gao
- 3 Pharmacometrics and Physiologically Based PKPD Modeling and Simulation Clinical Development, Alexion Pharmaceuticals, Inc., Boston, Massachusetts
| | - Cristina Martin-Higueras
- 4 Center for Rare Diseases (CIBERER), Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Spain
| | - Angel L Pey
- 5 Department of Physical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain
| | - Eduardo Salido
- 4 Center for Rare Diseases (CIBERER), Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Spain
| | - Susan Sobolov
- 1 Research, Alexion Pharmaceuticals, Inc., New Haven, Connecticut
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