1
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Zanganeh S, Zahedi AM, Sattarzadeh Bardsiri M, Bazi A, Bastanifard M, Shool S, Kouhbananinejad SM, Farsinejad A, Afgar A, Shahabi A, Mirzaei-Parsa MJ. Recent advances and applications of the CRISPR-Cas system in the gene therapy of blood disorders. Gene 2024; 931:148865. [PMID: 39168259 DOI: 10.1016/j.gene.2024.148865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 08/11/2024] [Accepted: 08/14/2024] [Indexed: 08/23/2024]
Affiliation(s)
- Saeed Zanganeh
- Stem Cells and Regenerative Medicine Innovation Center, Kerman University of Medical Sciences, Kerman, Iran; Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran.
| | - Amir Mohammad Zahedi
- Stem Cells and Regenerative Medicine Innovation Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Mahla Sattarzadeh Bardsiri
- Stem Cells and Regenerative Medicine Innovation Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Bazi
- Department of Hematology and Medical Laboratory Sciences, Faculty of Allied Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Mahdieh Bastanifard
- Stem Cells and Regenerative Medicine Innovation Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Sanaz Shool
- Stem Cells and Regenerative Medicine Innovation Center, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Alireza Farsinejad
- Stem Cells and Regenerative Medicine Innovation Center, Kerman University of Medical Sciences, Kerman, Iran; Department of Hematology and Medical Laboratory Sciences, Faculty of Allied Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Afgar
- Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
| | - Arman Shahabi
- Stem Cells and Regenerative Medicine Innovation Center, Kerman University of Medical Sciences, Kerman, Iran
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2
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Haque MA, Shrestha A, Mikelis CM, Mattheolabakis G. Comprehensive analysis of lipid nanoparticle formulation and preparation for RNA delivery. Int J Pharm X 2024; 8:100283. [PMID: 39309631 PMCID: PMC11415597 DOI: 10.1016/j.ijpx.2024.100283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 08/21/2024] [Accepted: 09/07/2024] [Indexed: 09/25/2024] Open
Abstract
Nucleic acid-based therapeutics are a common approach that is increasingly popular for a wide spectrum of diseases. Lipid nanoparticles (LNPs) are promising delivery carriers that provide RNA stability, with strong transfection efficiency, favorable and tailorable pharmacokinetics, limited toxicity, and established translatability. In this review article, we describe the lipid-based delivery systems, focusing on lipid nanoparticles, the need of their use, provide a comprehensive analysis of each component, and highlight the advantages and disadvantages of the existing manufacturing processes. We further summarize the ongoing and completed clinical trials utilizing LNPs, indicating important aspects/questions worth of investigation, and analyze the future perspectives of this significant and promising therapeutic approach.
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Affiliation(s)
- Md. Anamul Haque
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA
| | - Archana Shrestha
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA
| | - Constantinos M. Mikelis
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Patras 26504, Greece
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - George Mattheolabakis
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA
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3
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Mantri P, Juneja B, Henderson S, Koufos E, Moon Y, Dayeh DM, Di Grandi D, Fu Y, Muthusamy K, Ihnat PM, Palackal N, Pyles EA. Comparison of capillary electrophoresis-based methods for the analytical characterization of purity and stability of in vitro transcribed mRNA. J Pharm Biomed Anal 2024; 249:116352. [PMID: 39029354 DOI: 10.1016/j.jpba.2024.116352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 07/08/2024] [Accepted: 07/11/2024] [Indexed: 07/21/2024]
Abstract
Messenger RNA (mRNA) is rapidly growing as a therapeutic modality for vaccination and the treatment of a wide range of diseases. As a result, there is an increased demand for mRNA-based analytical methods capable of assessing purity and stability, which are considered critical quality attributes (CQAs). In recent decades capillary electrophoresis (CE) has emerged alongside liquid chromatography (LC) as an important tool for the assessment of purity and stability of mRNA therapeutics. CE offers a variety of advantages over conventional LC or gel-based analytical methods, including reduced injection volume, increased resolution, and increased separation efficiency. In this study we compared CE-based analytical methods: the Agilent RNA 6000 Nano Kit, the Revvity RNA Reagent Kit, the Sciex RNA 9000 Purity and Integrity Kit, and the Agilent HS RNA Kit. These methods were evaluated on their vendor-recommended instruments: the Bioanalyzer, LabChip GXII, PA800 Plus, and Fragment Analyzer, respectively. We assessed the ability of these methods to measure mRNA integrity, purity, and stability. Furthermore, several parameters for each method were also assessed: selectivity, precision, resolution, analysis time, and ease of use. Based on our results, all four methods are suitable for use in the characterization of in vitro transcribed (IVT) mRNA, depending on the intended application. The Sciex RNA 9000 Purity and Integrity kit method achieved the highest selectivity and resolving power compared with the other methods, making it the most suitable for high-resolution, in-depth sample characterization. In comparison, the Agilent RNA 6000 Nano Kit, Revvity RNA Reagent Kit, and Agilent HS RNA Kit achieved lower selectivity and resolution, but their faster analysis times make them more suitable for high-throughput and screening applications.
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Affiliation(s)
- Prerana Mantri
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Bindiya Juneja
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Steven Henderson
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Evan Koufos
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Youmi Moon
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Daniel M Dayeh
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Deanna Di Grandi
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Yue Fu
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States.
| | - Kathir Muthusamy
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States.
| | - Peter M Ihnat
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Nisha Palackal
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
| | - Erica A Pyles
- Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States
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4
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Rehman S, Masthan SS, Ibrahim R, Pham HN, Hassan D, Ahmad F, Asif MS, Safdar A, Anwar Z, Raza S, William P. Pharmacological management of transthyretin amyloid cardiomyopathy: a scoping review. EUROPEAN HEART JOURNAL. CARDIOVASCULAR PHARMACOTHERAPY 2024; 10:547-556. [PMID: 38830793 DOI: 10.1093/ehjcvp/pvae044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/17/2024] [Accepted: 06/02/2024] [Indexed: 06/05/2024]
Abstract
AIMS Transthyretin amyloid cardiomyopathy (ATTR-CM) is characterized by the accumulation of transthyretin (TTR) protein in the myocardium. The aim of this scoping review is to provide a descriptive summary of the clinical trials and observational studies that evaluated the clinical efficacy and safety of various agents used in ATTR-CM, with a goal of identifying the contemporary gaps in literature and to reveal future research opportunities. METHODS AND RESULTS The search was performed in line with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A literature search using several databases for observational and clinical trials investigating the treatment modalities for ATTR-CM was undertaken. We extracted data including study characteristics, primary endpoints, and adverse events from each study. A total of 19 studies were included in our scoping review. Out of which, 8 were clinical trials and 11 were observational analyses. The drugs evaluated included tafamadis, acoramidis, revusiran, doxycycline and tauroursodeoxycholic acid and doxycycline, diflusinil, inotersan, eplontersen, and patisiran. Tafamidis has shown to be efficacious in the management of ATTR-CM, particularly when initiated at earlier stages. RNA interference and antisense oligonucleotide drugs have shown promising impacts on quality of life. Additionally, this review identified gaps in the literature, particularly among long-term outcomes, comparative effectiveness, and the translation of research into economic contexts. CONCLUSION Multiple pharmacological options are potential disease-modifying therapies for ATTR-CM. However, many gaps exist in the understanding of these various drug therapies, warranting further research. The future directions for management of ATTR-CM are promising in regard to improving prognostic implications.
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Affiliation(s)
- Shafi Rehman
- D epartment of Histopathology, Khyber Medical University, Road No. 2, University of Rd No. 2, Rahat Abad, Peshawar, Khyber Pakhtunkhwa 25120, Pakistan
| | | | - Ramzi Ibrahim
- Department of Medicine, University of Arizona-Banner University Medical Center, 1625 N Campbell Ave, Tucson, AZ 85719, USA
| | - Hoang Nhat Pham
- Department of Medicine, University of Arizona-Banner University Medical Center, 1625 N Campbell Ave, Tucson, AZ 85719, USA
| | - Danial Hassan
- Harvard TH Chan School of Public Health, 677 Huntington Ave, Boston, MA 02115, USA
| | - Fahad Ahmad
- Sindh Institute of Urology and Transplantation, Chand Bibi Rd, Ranchore Lane, Karachi, Karachi City, Sindh, Pakistan
| | - Mohammad Shahzad Asif
- Department of Medicine, University College of Medicine and Dentistry, Lahore, Punjab, Pakistan
| | - Ahmad Safdar
- Department of Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA
| | - Zain Anwar
- University School, Health Education Campus, 9501 Euclid Ave, Cleveland, OH 44106, USA
| | - Shahzad Raza
- Taussig Cancer Center, Cleveland Clinic, 10201 Carnegie Ave, Cleveland, OH 44106, USA
| | - Preethi William
- Department of Cardiovascular Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA
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5
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Chaudhary N, Kasiewicz LN, Newby AN, Arral ML, Yerneni SS, Melamed JR, LoPresti ST, Fein KC, Strelkova Petersen DM, Kumar S, Purwar R, Whitehead KA. Amine headgroups in ionizable lipids drive immune responses to lipid nanoparticles by binding to the receptors TLR4 and CD1d. Nat Biomed Eng 2024:10.1038/s41551-024-01256-w. [PMID: 39363106 DOI: 10.1038/s41551-024-01256-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 09/05/2024] [Indexed: 10/05/2024]
Abstract
Lipid nanoparticles (LNPs) are the most clinically advanced delivery vehicle for RNA therapeutics, partly because of established lipid structure-activity relationships focused on formulation potency. Yet such knowledge has not extended to LNP immunogenicity. Here we show that the innate and adaptive immune responses elicited by LNPs are linked to their ionizable lipid chemistry. Specifically, we show that the amine headgroups in ionizable lipids drive LNP immunogenicity by binding to Toll-like receptor 4 and CD1d and by promoting lipid-raft formation. Immunogenic LNPs favour a type-1 T-helper-cell-biased immune response marked by increases in the immunoglobulins IgG2c and IgG1 and in the pro-inflammatory cytokines tumour necrosis factor, interferon γ and the interleukins IL-6 and IL-2. Notably, the inflammatory signals originating from these receptors inhibit the production of anti-poly(ethylene glycol) IgM antibodies, preventing the often-observed loss of efficacy in the LNP-mediated delivery of siRNA and mRNA. Moreover, we identified computational methods for the prediction of the structure-dependent innate and adaptive responses of LNPs. Our findings may help accelerate the discovery of well-tolerated ionizable lipids suitable for repeated dosing.
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Affiliation(s)
- Namit Chaudhary
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Lisa N Kasiewicz
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Alexandra N Newby
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Mariah L Arral
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | | | - Jilian R Melamed
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Samuel T LoPresti
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Katherine C Fein
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | | | - Sushant Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Rahul Purwar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Kathryn A Whitehead
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.
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6
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Badwal AK, Singh S. A comprehensive review on the current status of CRISPR based clinical trials for rare diseases. Int J Biol Macromol 2024; 277:134097. [PMID: 39059527 DOI: 10.1016/j.ijbiomac.2024.134097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 07/03/2024] [Accepted: 07/20/2024] [Indexed: 07/28/2024]
Abstract
A considerable fraction of population in the world suffers from rare diseases. Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and its related Cas proteins offer a modern form of curative gene therapy for treating the rare diseases. Hereditary transthyretin amyloidosis, hereditary angioedema, duchenne muscular dystrophy and Rett syndrome are a few examples of such rare diseases. CRISPR/Cas9, for example, has been used in the treatment of β-thalassemia and sickle cell disease (Frangoul et al., 2021; Pavani et al., 2021) [1,2]. Neurological diseases such as Huntington's have also been focused in some studies involving CRISPR/Cas (Yang et al., 2017; Yan et al., 2023) [3,4]. Delivery of these biologicals via vector and non vector mediated methods depends on the type of target cells, characteristics of expression, time duration of expression, size of foreign genetic material etc. For instance, retroviruses find their applicability in case of ex vivo delivery in somatic cells due to their ability to integrate in the host genome. These have been successfully used in gene therapy involving X-SCID patients although, incidence of inappropriate activation has been reported. On the other hand, ex vivo gene therapy for β-thalassemia involved use of BB305 lentiviral vector for high level expression of CRISPR biological in HSCs. The efficacy and safety of these biologicals will decide their future application as efficient genome editing tools as they go forward in further stages of human clinical trials. This review focuses on CRISPR/Cas based therapies which are at various stages of clinical trials for treatment of rare diseases and the constraints and ethical issues associated with them.
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Affiliation(s)
- Amneet Kaur Badwal
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Mohali 160062, Punjab, India
| | - Sushma Singh
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Mohali 160062, Punjab, India.
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7
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Girard AA, Sperry BW. Contextualizing the results of HELIOS-B in the broader landscape of clinical trials for the treatment of transthyretin cardiac amyloidosis. Heart Fail Rev 2024:10.1007/s10741-024-10444-4. [PMID: 39354201 DOI: 10.1007/s10741-024-10444-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/26/2024] [Indexed: 10/03/2024]
Abstract
This focused review will highlight the results of HELIOS-B, the first randomized outcomes trial evaluating a gene silencing treatment for transthyretin cardiac amyloidosis (ATTR-CM). In HELIOS-B, vutrisiran was tested against placebo and demonstrated a 28% reduction in the composite of all-cause mortality and recurrent cardiovascular events. Additionally, there were clinically significant benefits on the 6-min walk test, Kansas City Cardiomyopathy Questionnaire, and NYHA class. Discontinuation rates and adverse events were similar between treatment and control arms, suggesting that vutrisiran is well tolerated. In this review, these promising results are explored and compared with other treatment trials in ATTR-CM.
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Affiliation(s)
- Andrew A Girard
- Saint Luke's Mid America Heart Institute, 4401 Wornall Road MO, Kansas City, 64111, USA
- University of Missouri-Kansas City, Kansas City, MO, USA
| | - Brett W Sperry
- Saint Luke's Mid America Heart Institute, 4401 Wornall Road MO, Kansas City, 64111, USA.
- University of Missouri-Kansas City, Kansas City, MO, USA.
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8
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Lokras AG, Bobak TR, Baghel SS, Sebastiani F, Foged C. Advances in the design and delivery of RNA vaccines for infectious diseases. Adv Drug Deliv Rev 2024; 213:115419. [PMID: 39111358 DOI: 10.1016/j.addr.2024.115419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 07/19/2024] [Accepted: 07/30/2024] [Indexed: 08/23/2024]
Abstract
RNA medicines represent a paradigm shift in treatment and prevention of critical diseases of global significance, e.g., infectious diseases. The highly successful messenger RNA (mRNA) vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) were developed at record speed during the coronavirus disease 2019 pandemic. A consequence of this is exceptionally shortened vaccine development times, which in combination with adaptability makes the RNA vaccine technology highly attractive against infectious diseases and for pandemic preparedness. Here, we review state of the art in the design and delivery of RNA vaccines for infectious diseases based on different RNA modalities, including linear mRNA, self-amplifying RNA, trans-amplifying RNA, and circular RNA. We provide an overview of the clinical pipeline of RNA vaccines for infectious diseases, and present analytical procedures, which are paramount for characterizing quality attributes and guaranteeing their quality, and we discuss future perspectives for using RNA vaccines to combat pathogens beyond SARS-CoV-2.
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Affiliation(s)
- Abhijeet Girish Lokras
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen Ø, Denmark
| | - Thomas Rønnemoes Bobak
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen Ø, Denmark
| | - Saahil Sandeep Baghel
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen Ø, Denmark
| | - Federica Sebastiani
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen Ø, Denmark; Division of Physical Chemistry, Department of Chemistry, Lund University, 22100, Lund, Sweden
| | - Camilla Foged
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen Ø, Denmark.
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9
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Hu X, Enbar T, Tang L. Delivery approaches of immunomodulatory nucleic acids for cancer therapy. Curr Opin Biotechnol 2024; 89:103182. [PMID: 39178725 DOI: 10.1016/j.copbio.2024.103182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 08/04/2024] [Accepted: 08/05/2024] [Indexed: 08/26/2024]
Abstract
Messenger RNA (mRNA) vaccines have made remarkable public health contributions during the pandemic and initiated a new era for nucleic acid-based therapeutics. With the unique strength of nucleic acids, including not only mRNA but also DNA, microRNA, small interfering RNA (siRNA), and other nucleic acids, either in tuning off genes or introducing function, nucleic acid therapeutics have been regarded as potential candidates for the treatment of many different diseases, especially for the immunomodulation in cancer. However, the scope of the applications was limited by the challenges in delivery due to intrinsic properties of nucleic acids including low stability, immunogenicity, and toxicity. Bioengineering approaches toward efficient and targeted delivery of therapeutic nucleic acids have gained momentum in clinical applications in the past few decades. Recent advances in the biotechnological approaches for the delivery of mRNA, siRNA, and clustered regularly interspaced short palindromic repeats (CRISPR)/Cas for immunomodulatory are promising alternatives in designing future cancer immunotherapy.
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Affiliation(s)
- Xiaomeng Hu
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Tom Enbar
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Li Tang
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; Institute of Materials Science & Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
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10
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Xue L, Zhao G, Gong N, Han X, Shepherd SJ, Xiong X, Xiao Z, Palanki R, Xu J, Swingle KL, Warzecha CC, El-Mayta R, Chowdhary V, Yoon IC, Xu J, Cui J, Shi Y, Alameh MG, Wang K, Wang L, Pochan DJ, Weissman D, Vaughan AE, Wilson JM, Mitchell MJ. Combinatorial design of siloxane-incorporated lipid nanoparticles augments intracellular processing for tissue-specific mRNA therapeutic delivery. NATURE NANOTECHNOLOGY 2024:10.1038/s41565-024-01747-6. [PMID: 39354147 DOI: 10.1038/s41565-024-01747-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 07/08/2024] [Indexed: 10/03/2024]
Abstract
Systemic delivery of messenger RNA (mRNA) for tissue-specific targeting using lipid nanoparticles (LNPs) holds great therapeutic potential. Nevertheless, how the structural characteristics of ionizable lipids (lipidoids) impact their capability to target cells and organs remains unclear. Here we engineered a class of siloxane-based ionizable lipids with varying structures and formulated siloxane-incorporated LNPs (SiLNPs) to control in vivo mRNA delivery to the liver, lung and spleen in mice. The siloxane moieties enhance cellular internalization of mRNA-LNPs and improve their endosomal escape capacity, augmenting their mRNA delivery efficacy. Using organ-specific SiLNPs to deliver gene editing machinery, we achieve robust gene knockout in the liver of wild-type mice and in the lungs of both transgenic GFP and Lewis lung carcinoma (LLC) tumour-bearing mice. Moreover, we showed effective recovery from viral infection-induced lung damage by delivering angiogenic factors with lung-targeted Si5-N14 LNPs. We envision that our SiLNPs will aid in the clinical translation of mRNA therapeutics for next-generation tissue-specific protein replacement therapies, regenerative medicine and gene editing.
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Affiliation(s)
- Lulu Xue
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Gan Zhao
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ningqiang Gong
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Xuexiang Han
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sarah J Shepherd
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Xinhong Xiong
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, China
| | - Zebin Xiao
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Rohan Palanki
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Junchao Xu
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kelsey L Swingle
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Claude C Warzecha
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Rakan El-Mayta
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Vivek Chowdhary
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Il-Chul Yoon
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jingcheng Xu
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jiaxi Cui
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, China
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
| | - Yi Shi
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - Mohamad-Gabriel Alameh
- Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Penn Institute for RNA Innovation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Karin Wang
- Department of Bioengineering, Temple University, Philadelphia, Pennsylvania, USA
| | - Lili Wang
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Darrin J Pochan
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, USA
| | - Drew Weissman
- Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Penn Institute for RNA Innovation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Andrew E Vaughan
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - James M Wilson
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Michael J Mitchell
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
- Penn Institute for RNA Innovation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
- Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
- Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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11
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Han X, Alameh MG, Gong N, Xue L, Ghattas M, Bojja G, Xu J, Zhao G, Warzecha CC, Padilla MS, El-Mayta R, Dwivedi G, Xu Y, Vaughan AE, Wilson JM, Weissman D, Mitchell MJ. Fast and facile synthesis of amidine-incorporated degradable lipids for versatile mRNA delivery in vivo. Nat Chem 2024; 16:1687-1697. [PMID: 38982196 PMCID: PMC11446653 DOI: 10.1038/s41557-024-01557-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 05/14/2024] [Indexed: 07/11/2024]
Abstract
Lipid nanoparticles (LNPs) are widely used for mRNA delivery, with cationic lipids greatly affecting biodistribution, cellular uptake, endosomal escape and transfection efficiency. However, the laborious synthesis of cationic lipids limits the discovery of efficacious candidates and slows down scale-up manufacturing. Here we develop a one-pot, tandem multi-component reaction based on the rationally designed amine-thiol-acrylate conjugation, which enables fast (1 h) and facile room-temperature synthesis of amidine-incorporated degradable (AID) lipids. Structure-activity relationship analysis of a combinatorial library of 100 chemically diverse AID-lipids leads to the identification of a tail-like amine-ring-alkyl aniline that generally affords efficacious lipids. Experimental and theoretical studies show that the embedded bulky benzene ring can enhance endosomal escape and mRNA delivery by enabling the lipid to adopt a more conical shape. The lead AID-lipid can not only mediate local delivery of mRNA vaccines and systemic delivery of mRNA therapeutics, but can also alter the tropism of liver-tropic LNPs to selectively deliver gene editors to the lung and mRNA vaccines to the spleen.
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Affiliation(s)
- Xuexiang Han
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
- Key Laboratory of RNA Innovation, Science and Engineering, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Mohamad-Gabriel Alameh
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Penn Institute for RNA Innovation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Bioengineering, George Mason University, Fairfax, VA, USA
| | - Ningqiang Gong
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Lulu Xue
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Majed Ghattas
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Goutham Bojja
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Junchao Xu
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Gan Zhao
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Claude C Warzecha
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Marshall S Padilla
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Rakan El-Mayta
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Garima Dwivedi
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ying Xu
- Department of Chemistry, Case Western Reserve University, Cleveland, OH, USA
| | - Andrew E Vaughan
- Department of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - James M Wilson
- Gene Therapy Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Drew Weissman
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Penn Institute for RNA Innovation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Michael J Mitchell
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA.
- Penn Institute for RNA Innovation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Center for Cellular Immunotherapies, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Center for Precision Engineering for Health, University of Pennsylvania, Philadelphia, PA, USA.
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12
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Priyanka, Raymandal B, Mondal S. Native State Stabilization of Amyloidogenic Proteins by Kinetic Stabilizers: Inhibition of Protein Aggregation and Clinical Relevance. ChemMedChem 2024; 19:e202400244. [PMID: 38863235 DOI: 10.1002/cmdc.202400244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 06/10/2024] [Accepted: 06/11/2024] [Indexed: 06/13/2024]
Abstract
Proteinopathies or amyloidoses are a group of life-threatening disorders that result from misfolding of proteins and aggregation into toxic insoluble amyloid aggregates. Amyloid aggregates have low clearance from the body due to the insoluble nature, leading to their deposition in various organs and consequent organ dysfunction. While amyloid deposition in the central nervous system leads to neurodegenerative diseases that mostly cause dementia and difficulty in movement, several other organs, including heart, liver and kidney are also affected by systemic amyloidoses. Regardless of the site of amyloid deposition, misfolding and structural alteration of the precursor proteins play the central role in amyloid formation. Kinetic stabilizers are an emerging class of drugs, which act like pharmacological chaperones to stabilize the native state structure of amyloidogenic proteins and to increase the activation energy barrier that is required for adopting a misfolded structure or conformation, ultimately leading to the inhibition of protein aggregation. In this review, we discuss the kinetic stabilizers that stabilize the native quaternary structure of transthyretin, immunoglobulin light chain and superoxide dismutase 1 that cause transthyretin amyloidoses, light chain amyloidosis and familial amyotrophic lateral sclerosis, respectively.
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Affiliation(s)
- Priyanka
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, Hauz Khas, Hauz Khas, New Delhi, Delhi, 110016, India
| | - Bitta Raymandal
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, Hauz Khas, Hauz Khas, New Delhi, Delhi, 110016, India
| | - Santanu Mondal
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, Hauz Khas, Hauz Khas, New Delhi, Delhi, 110016, India
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13
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Merlin JPJ, Abrahamse H. Optimizing CRISPR/Cas9 precision: Mitigating off-target effects for safe integration with photodynamic and stem cell therapies in cancer treatment. Biomed Pharmacother 2024; 180:117516. [PMID: 39332185 DOI: 10.1016/j.biopha.2024.117516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 09/22/2024] [Accepted: 09/25/2024] [Indexed: 09/29/2024] Open
Abstract
CRISPR/Cas9 precision genome editing has revolutionized cancer treatment by introducing specific alterations to the cancer genome. But the therapeutic potential of CRISPR/Cas9 is limited by off-target effects, which can cause undesired changes to genomic regions and create major safety concerns. The primary emphasis lies in their implications within the realm of cancer photodynamic therapy (PDT), where precision is paramount. PDT is a promising cancer treatment method; nevertheless, its effectiveness is severely limited and readily leads to recurrence due to the therapeutic resistance of cancer stem cells (CSCs). With a focus on targeted genome editing into cancer cells during PDT and stem cell treatment (SCT), the review aims to further the ongoing search for safer and more accurate CRISPR/Cas9-mediated methods. At the core of this exploration are recent advancements and novel techniques that offer promise in mitigating the risks associated with off-target effects. With a focus on cancer PDT and SCT, this review critically assesses the landscape of off-target effects in CRISPR/Cas9 applications, offering a comprehensive knowledge of their nature and prevalence. A key component of the review is the assessment of cutting-edge delivery methods, such as technologies based on nanoparticles (NPs), to optimize the distribution of CRISPR components. Additionally, the study delves into the intricacies of guide RNA design, focusing on advancements that bolster specificity and minimize off-target effects, crucial elements in ensuring the precision required for effective cancer PDT and SCT. By synthesizing insights from various methodologies, including the exploration of innovative genome editing tools and leveraging robust validation methods and bioinformatics tools, the review aspires to chart a course towards more reliable and precise CRISPR-Cas9 applications in cancer PDT and SCT. For safe PDT and SCT integration in cancer therapy, CRISPR/Cas9 precision optimization is essential. Utilizing sophisticated molecular and computational techniques to address off-target effects is crucial to realizing the therapeutic promise of these technologies, which will ultimately lead to the development of individualized and successful cancer treatment strategies. Our long-term goals are to improve precision genome editing for more potent cancer therapy approaches by refining the way CRISPR/Cas9 is integrated with photodynamic and stem cell therapies.
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Affiliation(s)
- J P Jose Merlin
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, South Africa.
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, South Africa
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14
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George CA, Sahu SU, de Oñate L, Souza BSDF, Wilson RC. Genome Editing Therapy for the Blood: Ex Vivo Success and In Vivo Prospects. CRISPR J 2024. [PMID: 39324895 DOI: 10.1089/crispr.2024.0036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2024] Open
Abstract
Hematopoietic stem cells (HSCs) provide the body with a continuous supply of healthy, functional blood cells. In patients with hematopoietic malignancies, immunodeficiencies, lysosomal storage disorders, and hemoglobinopathies, therapeutic genome editing offers hope for corrective intervention, with even modest editing efficiencies likely to provide clinical benefit. Engineered white blood cells, such as T cells, can be applied therapeutically to address monogenic disorders of the immune system, HIV infection, or cancer. The versatility of CRISPR-based tools allows countless new medical interventions for diseases of the blood, and rapid ex vivo success has been demonstrated in hemoglobinopathies via transplantation of the patient's HSCs following genome editing in a laboratory setting. Here we review recent advances in therapeutic genome editing of HSCs and T cells, focusing on the progress in ex vivo contexts, the promise of improved access via in vivo delivery, as well as the ongoing preclinical efforts that may enable the transition from ex vivo to in vivo administration. We discuss the challenges, limitations, and future prospects of this rapidly developing field, which may one day establish CRISPR as the standard of care for some diseases affecting the blood.
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Affiliation(s)
- Christy A George
- Innovative Genomics Institute, University of California Berkeley, Berkeley, California, USA
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California, USA
| | - Srishti U Sahu
- Innovative Genomics Institute, University of California Berkeley, Berkeley, California, USA
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California, USA
| | - Lorena de Oñate
- Innovative Genomics Institute, University of California Berkeley, Berkeley, California, USA
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California, USA
| | - Bruno Solano de Freitas Souza
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador, Brazil
- Pioneer Science Initiative, D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Ross C Wilson
- Innovative Genomics Institute, University of California Berkeley, Berkeley, California, USA
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California, USA
- California Institute for Quantitative Biosciences, University of California Berkeley, Berkeley, California, USA
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15
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Tartaglia MC, Ingelsson M. Molecular Therapeutics in Development to Treat Alzheimer's Disease. Mol Diagn Ther 2024:10.1007/s40291-024-00738-6. [PMID: 39316339 DOI: 10.1007/s40291-024-00738-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2024] [Indexed: 09/25/2024]
Abstract
Until recently, only symptomatic therapies, in the form of acetylcholine esterase inhibitors and NMDA-receptor antagonists, have been available for the treatment of Alzheimer's disease. However, advancements in our understanding of the amyloid cascade hypothesis have led to a development of disease-modifying therapeutic strategies. These include immunotherapies based on an infusion of monoclonal antibodies against amyloid-β, three of which have been approved for the treatment of Alzheimer's disease in the USA (one of them, lecanemab, has also been approved in several other countries). They all lead to a dramatic reduction of amyloid plaques in the brain, whereas their clinical effects have been more limited. Moreover, they can all lead to side effects in the form of amyloid-related imaging abnormalities. Ongoing developments aim at facilitating their administration, further improving their effects and reducing the risk for amyloid-related imaging abnormalities. Moreover, a number of anti-tau immunotherapies are in clinical trials, but none has so far shown any robust effects on symptoms or pathology. Another line of development is represented by gene therapy. To date, only antisense oligonucleotides against amyloid precursor protein/amyloid-β and tau have reached the clinical trial stage but a variety of gene editing strategies, such as clustered regularly interspaced short palindromic repeats/Cas9-mediated non-homologous end joining, base editing, and prime editing, have all shown promise on preclinical disease models. In addition, a number of other pharmacological compounds targeting a multitude of biochemical processes, believed to be centrally involved in Alzheimer's disease, are currently being evaluated in clinical trials. This article delves into current and future perspectives on the treatment of Alzheimer's disease, with an emphasis on immunotherapeutic and gene therapeutic strategies.
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Affiliation(s)
- Maria Carmela Tartaglia
- Krembil Brain Institute, University Health Network, 6th Floor, 60 Leonard Ave, Toronto, ON, M5T 0S8, Canada
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, ON, Canada
- Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Martin Ingelsson
- Krembil Brain Institute, University Health Network, 6th Floor, 60 Leonard Ave, Toronto, ON, M5T 0S8, Canada.
- Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, ON, Canada.
- Department of Medicine, University of Toronto, Toronto, ON, Canada.
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
- Department of Public Health and Caring Sciences, Geriatrics, Uppsala University, Uppsala, Sweden.
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16
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Kulhankova K, Cheng AX, Traore S, Auger M, Pelletier M, Hervault M, Wells KD, Green JA, Byrne A, Nelson B, Sponchiado M, Boosani C, Heffner CS, Snow KJ, Murray SA, Villacreses RA, Rector MV, Gansemer ND, Stoltz DA, Allamargot C, Couture F, Hemez C, Hallée S, Barbeau X, Harvey M, Lauvaux C, Gaillet B, Newby GA, Liu DR, McCray PB, Guay D. Amphiphilic shuttle peptide delivers base editor ribonucleoprotein to correct the CFTR R553X mutation in well-differentiated airway epithelial cells. Nucleic Acids Res 2024:gkae819. [PMID: 39315713 DOI: 10.1093/nar/gkae819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 09/03/2024] [Accepted: 09/10/2024] [Indexed: 09/25/2024] Open
Abstract
Base editing could correct nonsense mutations that cause cystic fibrosis (CF), but clinical development is limited by the lack of delivery methods that efficiently breach the barriers presented by airway epithelia. Here, we present a novel amphiphilic shuttle peptide based on the previously reported S10 peptide that substantially improved base editor ribonucleoprotein (RNP) delivery. Studies of the S10 secondary structure revealed that the alpha-helix formed by the endosomal leakage domain (ELD), but not the cell penetrating peptide (CPP), was functionally important for delivery. By isolating and extending the ELD, we created a novel shuttle peptide, termed S237. While S237 achieved lower delivery of green fluorescent protein, it outperformed S10 at Cas9 RNP delivery to cultured human airway epithelial cells and to pig airway epithelia in vivo, possibly due to its lower net charge. In well-differentiated primary human airway epithelial cell cultures, S237 achieved a 4.6-fold increase in base editor RNP delivery, correcting up to 9.4% of the cystic fibrosis transmembrane conductance regulator (CFTR) R553X allele and restoring CFTR channel function close to non-CF levels. These findings deepen the understanding of peptide-mediated delivery and offer a translational approach for base editor RNP delivery for CF airway disease.
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Affiliation(s)
| | | | - Soumba Traore
- Department of Pediatrics, University of Iowa, Iowa City, IA, USA
| | - Maud Auger
- Feldan Therapeutics, Quebec, Qc, Canada
- Department of Chemical Engineering, Laval University, Quebec, Qc, Canada
| | - Mia Pelletier
- Feldan Therapeutics, Quebec, Qc, Canada
- Department of Chemical Engineering, Laval University, Quebec, Qc, Canada
| | | | - Kevin D Wells
- Division of Animal Sciences, Swine Somatic Cell Genome Editing Center, University of Missouri, Columbia, MO, USA
| | - Jonathan A Green
- Division of Animal Sciences, Swine Somatic Cell Genome Editing Center, University of Missouri, Columbia, MO, USA
| | - Addison Byrne
- Division of Animal Sciences, Swine Somatic Cell Genome Editing Center, University of Missouri, Columbia, MO, USA
| | - Benjamin Nelson
- Division of Animal Sciences, Swine Somatic Cell Genome Editing Center, University of Missouri, Columbia, MO, USA
| | - Mariana Sponchiado
- Division of Animal Sciences, Swine Somatic Cell Genome Editing Center, University of Missouri, Columbia, MO, USA
| | - Chandra Boosani
- Division of Animal Sciences, Swine Somatic Cell Genome Editing Center, University of Missouri, Columbia, MO, USA
| | - Caleb S Heffner
- The Jackson Laboratory, Genetic Resource Science, Bar Harbor, ME, USA
| | - Kathy J Snow
- The Jackson Laboratory, Genetic Resource Science, Bar Harbor, ME, USA
| | - Stephen A Murray
- The Jackson Laboratory, Genetic Resource Science, Bar Harbor, ME, USA
| | - Raul A Villacreses
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Michael V Rector
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Pappajohn Biomedical Institute, University of Iowa, Iowa City, IA, USA
| | - Nicholas D Gansemer
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Pappajohn Biomedical Institute, University of Iowa, Iowa City, IA, USA
| | - David A Stoltz
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Pappajohn Biomedical Institute, University of Iowa, Iowa City, IA, USA
- Department of Biomedical Engineering, University of Iowa, Iowa City, IA, USA
- Department of Molecular Physiology and Biophysics, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Chantal Allamargot
- Central Microscopy Research Facility (CMRF), and Office for the Vice President of Research (OVPR), University of Iowa, Iowa City, IA, USA
| | | | - Colin Hemez
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Graduate Program in Biophysics, Harvard University, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA
| | | | | | | | | | - Bruno Gaillet
- Department of Chemical Engineering, Laval University, Quebec, Qc, Canada
| | - Gregory A Newby
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - David R Liu
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Paul B McCray
- Department of Pediatrics, University of Iowa, Iowa City, IA, USA
| | - David Guay
- Feldan Therapeutics, Quebec, Qc, Canada
- Department of Chemical Engineering, Laval University, Quebec, Qc, Canada
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17
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Desai DA, Schmidt S, Cristofoletti R. A quantitative systems pharmacology (QSP) platform for preclinical to clinical translation of in-vivo CRISPR-Cas therapy. Front Pharmacol 2024; 15:1454785. [PMID: 39372210 PMCID: PMC11449743 DOI: 10.3389/fphar.2024.1454785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Accepted: 08/30/2024] [Indexed: 10/08/2024] Open
Abstract
Background: In-vivo CRISPR Cas genome editing is a complex therapy involving lipid nanoparticle (LNP), messenger RNA (mRNA), and single guide RNA (sgRNA). This novel modality requires prior modeling to predict dose-exposure-response relationships due to limited information on sgRNA and mRNA biodistribution. This work presents a QSP model to characterize, predict, and translate the Pharmacokinetics/Pharmacodynamics (PK/PD) of CRISPR therapies from preclinical species (mouse, non-human primate (NHP)) to humans using two case studies: transthyretin amyloidosis and LDL-cholesterol reduction. Methods: PK/PD data were sourced from literature. The QSP model incorporates mechanisms post-IV injection: 1) LNP binding to opsonins in liver vasculature; 2) Phagocytosis into the Mononuclear Phagocytotic System (MPS); 3) LNP internalization via endocytosis and LDL receptor-mediated endocytosis in the liver; 4) Cellular internalization and transgene product release; 5) mRNA and sgRNA disposition via exocytosis and clathrin-mediated endocytosis; 6) Renal elimination of LNP and sgRNA; 7) Exonuclease degradation of sgRNA and mRNA; 8) mRNA translation into Cas9 and RNP complex formation for gene editing. Monte-Carlo simulations were performed for 1000 subjects and showed a reduction in serum TTR. Results: The rate of internalization in interstitial layer was 0.039 1/h in NHP and 0.007 1/h in humans. The rate of exocytosis was 6.84 1/h in mouse, 2690 1/h in NHP, and 775 1/h in humans. Pharmacodynamics were modeled using an indirect response model, estimating first-order degradation rate (0.493 1/d) and TTR reduction parameters in NHP. Discussion: The QSP model effectively characterized biodistribution and dose-exposure relationships, aiding the development of these novel therapies. The utility of platform QSP model can be paramount in facilitating the discovery and development of these novel agents.
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Affiliation(s)
- Devam A. Desai
- Center of Pharmacometrics and Systems Pharmacology, University of Florida, Orlando, FL, United States
| | | | - Rodrigo Cristofoletti
- Center of Pharmacometrics and Systems Pharmacology, University of Florida, Orlando, FL, United States
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18
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Wei PS, Thota N, John G, Chang E, Lee S, Wang Y, Ma Z, Tsai YH, Mei KC. Enhancing RNA-lipid nanoparticle delivery: Organ- and cell-specificity and barcoding strategies. J Control Release 2024; 375:366-388. [PMID: 39179112 DOI: 10.1016/j.jconrel.2024.08.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/25/2024] [Accepted: 08/19/2024] [Indexed: 08/26/2024]
Abstract
Recent advancements in RNA therapeutics highlight the critical need for precision gene delivery systems that target specific organs and cells. Lipid nanoparticles (LNPs) have emerged as key vectors in delivering mRNA and siRNA, offering protection against enzymatic degradation, enabling targeted delivery and cellular uptake, and facilitating RNA cargo release into the cytosol. This review discusses the development and optimization of organ- and cell-specific LNPs, focusing on their design, mechanisms of action, and therapeutic applications. We explore innovations such as DNA/RNA barcoding, which facilitates high-throughput screening and precise adjustments in formulations. We address major challenges, including improving endosomal escape, minimizing off-target effects, and enhancing delivery efficiencies. Notable clinical trials and recent FDA approvals illustrate the practical applications and future potential of LNP-based RNA therapies. Our findings suggest that while considerable progress has been made, continued research is essential to resolve existing limitations and bridge the gap between preclinical and clinical evaluation of the safety and efficacy of RNA therapeutics. This review highlights the dynamic progress in LNP research. It outlines a roadmap for future advancements in RNA-based precision medicine.
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Affiliation(s)
- Pu-Sheng Wei
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Nagasri Thota
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Greshma John
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Evelyn Chang
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Sunjae Lee
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Yuanjun Wang
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Zitao Ma
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Yu-Hsuan Tsai
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA
| | - Kuo-Ching Mei
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Binghamton, Johnson City, New York, NY 13790, USA.
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19
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Chakrabartty A. Structural Basis for Monoclonal Antibody Therapy for Transthyretin Amyloidosis. Pharmaceuticals (Basel) 2024; 17:1225. [PMID: 39338387 PMCID: PMC11435174 DOI: 10.3390/ph17091225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2024] [Revised: 08/21/2024] [Accepted: 09/16/2024] [Indexed: 09/30/2024] Open
Abstract
The disease of transthyretin (TTR) amyloidosis (ATTR) has been known since the 1960s, and during the past 60 or so years, there has been a sustained period of steady discoveries that have led to the current model of ATTR pathogenesis. More recent research has achieved major advances in both diagnostics and therapeutics for ATTR, which are having a significant impact on ATTR patients today. Aiding these recent achievements has been the remarkable ability of cryo-electron microscopy (EM) to determine high-resolution structures of amyloid fibrils obtained from individual patients. Here, we will examine the cryo-EM structures of transthyretin amyloid fibrils to explore the structural basis of the two monoclonal antibody therapies for ATTR that are in clinical trials, ALXN-2220 and Coramitug, as well as to point out potential applications of this approach to other systemic amyloid diseases.
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Affiliation(s)
- Avi Chakrabartty
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 2M9, Canada
- Proteotoxicity Solutions, Toronto, ON L4K 2E1, Canada
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20
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Legere NJ, Hinson JT. Emerging CRISPR Therapies for Precision Gene Editing and Modulation in the Cardiovascular Clinic. Curr Cardiol Rep 2024:10.1007/s11886-024-02125-3. [PMID: 39287778 DOI: 10.1007/s11886-024-02125-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/21/2024] [Indexed: 09/19/2024]
Abstract
PURPOSE OF REVIEW Outline the growing suite of novel genome editing tools powered by CRISPR-Cas9 technology that are rapidly advancing towards the clinic for the treatment of cardiovascular disorders. RECENT FINDINGS A diversity of new genome editors and modulators are being developed for therapies across myriad human diseases. Recent breakthroughs have improved the efficacy, safety, specificity, and delivery of CRISPR-mediated therapies that could impact heart disease in the next decade, though several challenges remain. Many iterations of the original CRISPR system have been developed seeking to leverage its vast therapeutic potential. As examples, nuclease-free editing, precision single-nucleotide editing, gene expression regulation, and epigenomic modifications are now feasible with the current CRISPR-mediated suite of enzymes. These emerging tools will be indispensable for the development of novel cardiovascular therapeutics as demonstrated by recent successes in both basic research laboratories and pre-clinical models. Here, we provide an overview of current and emerging CRISPR-mediated technologies as they pertain to the cardiovascular system, highlighting successful implementations and future challenges.
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Affiliation(s)
| | - J Travis Hinson
- University of Connecticut Health Center, Farmington, CT, USA.
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA.
- Calhoun Cardiology Center, UConn Health, Farmington, CT, USA.
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21
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Marotta C, Ciccone L, Orlandini E, Rossello A, Nencetti S. A Snapshot of the Most Recent Transthyretin Stabilizers. Int J Mol Sci 2024; 25:9969. [PMID: 39337457 PMCID: PMC11432176 DOI: 10.3390/ijms25189969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2024] [Revised: 09/13/2024] [Accepted: 09/14/2024] [Indexed: 09/30/2024] Open
Abstract
In recent years, several strategies have been developed for the treatment of transthyretin-related amyloidosis, whose complex clinical manifestations involve cardiomyopathy and polyneuropathy. In view of this, transthyretin stabilizers represent a major cornerstone in treatment thanks to the introduction of tafamidis into therapy and the entry of acoramidis into clinical trials. However, the clinical treatment of transthyretin-related amyloidosis still presents several challenges, urging the development of new and improved therapeutics. Bearing this in mind, in this paper, the most promising among the recently published transthyretin stabilizers were reviewed. Their activity was described to provide some insights into their clinical potential, and crystallographic data were provided to explain their modes of action. Finally, structure-activity relationship studies were performed to give some guidance to future researchers aiming to synthesize new transthyretin stabilizers. Interestingly, some new details emerged with respect to the previously known general rules that guided the design of new compounds.
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Affiliation(s)
- Carlo Marotta
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Lidia Ciccone
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Elisabetta Orlandini
- Department of Earth Sciences, University of Pisa, Via Santa Maria 53-55, 56100 Pisa, Italy
| | - Armando Rossello
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Susanna Nencetti
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
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22
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Lauerer AM, Caravia XM, Maier LS, Chemello F, Lebek S. Gene editing in common cardiovascular diseases. Pharmacol Ther 2024; 263:108720. [PMID: 39284367 DOI: 10.1016/j.pharmthera.2024.108720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/29/2024] [Accepted: 09/01/2024] [Indexed: 09/22/2024]
Abstract
Cardiovascular diseases are the leading cause of morbidity and mortality worldwide, highlighting the high socioeconomic impact. Current treatment strategies like compound-based drugs or surgeries are often limited. On the one hand, systemic administration of substances is frequently associated with adverse side effects; on the other hand, they typically provide only short-time effects requiring daily intake. Thus, new therapeutic approaches and concepts are urgently needed. The advent of CRISPR-Cas9 genome editing offers great promise for the correction of disease-causing hereditary mutations. As such mutations are often very rare, gene editing strategies to correct them are not broadly applicable to many patients. Notably, there is recent evidence that gene editing technology can also be deployed to disrupt common pathogenic signaling cascades in a targeted, specific, and efficient manner, which offers a more generalizable approach. However, several challenges remain to be addressed ranging from the optimization of the editing strategy itself to a suitable delivery strategy up to potential immune responses to the editing components. This review article discusses important CRISPR-Cas9-based gene editing approaches with their advantages and drawbacks and outlines opportunities in their application for treatment of cardiovascular diseases.
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Affiliation(s)
- Anna-Maria Lauerer
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Xurde M Caravia
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Lars S Maier
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Francesco Chemello
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Simon Lebek
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany.
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23
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Lemoine J, Dubois A, Dorval A, Jaber A, Warthi G, Mamchaoui K, Wang T, Corre G, Bovolenta M, Richard I. Correction of exon 2, exon 2-9 and exons 8-9 duplications in DMD patient myogenic cells by a single CRISPR/Cas9 system. Sci Rep 2024; 14:21238. [PMID: 39261505 PMCID: PMC11390959 DOI: 10.1038/s41598-024-70075-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 08/12/2024] [Indexed: 09/13/2024] Open
Abstract
Duchenne Muscular dystrophy (DMD), a yet-incurable X-linked recessive disorder that results in muscle wasting and loss of ambulation is due to mutations in the dystrophin gene. Exonic duplications of dystrophin gene are a common type of mutations found in DMD patients. In this study, we utilized a single guide RNA CRISPR strategy targeting intronic regions to delete the extra duplicated regions in patient myogenic cells carrying duplication of exon 2, exons 2-9, and exons 8-9 in the DMD gene. Immunostaining on CRISPR-corrected derived myotubes demonstrated the rescue of dystrophin protein. Subsequent RNA sequencing of the DMD cells indicated rescue of genes of dystrophin related pathways. Examination of predicted close-match off-targets evidenced no aberrant gene editing at these loci. Here, we further demonstrate the efficiency of a single guide CRISPR strategy capable of deleting multi-exon duplications in the DMD gene without significant off target effect. Our study contributes valuable insights into the safety and efficacy of using single guide CRISPR strategy as a potential therapeutic approach for DMD patients with duplications of variable size.
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Affiliation(s)
- Juliette Lemoine
- Genethon, 1, bis rue de l'internationale, 91000, Evry, France
- Université Paris-Saclay, Univ Evry, Inserm, Généthon, Integrare Research Unit UMR_S951, 91000, Evry-Courcouronnes, France
| | - Auriane Dubois
- Genethon, 1, bis rue de l'internationale, 91000, Evry, France
- Université Paris-Saclay, Univ Evry, Inserm, Généthon, Integrare Research Unit UMR_S951, 91000, Evry-Courcouronnes, France
| | - Alan Dorval
- Genethon, 1, bis rue de l'internationale, 91000, Evry, France
- Université Paris-Saclay, Univ Evry, Inserm, Généthon, Integrare Research Unit UMR_S951, 91000, Evry-Courcouronnes, France
- ADLIN Science, Pépinière « Genopole Entreprises », 91058, Evry, France
| | - Abbass Jaber
- Genethon, 1, bis rue de l'internationale, 91000, Evry, France
- Université Paris-Saclay, Univ Evry, Inserm, Généthon, Integrare Research Unit UMR_S951, 91000, Evry-Courcouronnes, France
| | - Ganesh Warthi
- Genethon, 1, bis rue de l'internationale, 91000, Evry, France
- Université Paris-Saclay, Univ Evry, Inserm, Généthon, Integrare Research Unit UMR_S951, 91000, Evry-Courcouronnes, France
| | - Kamel Mamchaoui
- Sorbonne Université, Inserm, Institut de Myologie, Centre de Recherche en Myologie, 75013, Paris, France
| | - Tao Wang
- Genethon, 1, bis rue de l'internationale, 91000, Evry, France
- Université Paris-Saclay, Univ Evry, Inserm, Généthon, Integrare Research Unit UMR_S951, 91000, Evry-Courcouronnes, France
| | - Guillaume Corre
- Genethon, 1, bis rue de l'internationale, 91000, Evry, France
- Université Paris-Saclay, Univ Evry, Inserm, Généthon, Integrare Research Unit UMR_S951, 91000, Evry-Courcouronnes, France
| | - Matteo Bovolenta
- Genethon, 1, bis rue de l'internationale, 91000, Evry, France
- Université Paris-Saclay, Univ Evry, Inserm, Généthon, Integrare Research Unit UMR_S951, 91000, Evry-Courcouronnes, France
- Department of Translational Medicine, University of Ferrara, 44121, Ferrara, Italy
| | - Isabelle Richard
- Genethon, 1, bis rue de l'internationale, 91000, Evry, France.
- Université Paris-Saclay, Univ Evry, Inserm, Généthon, Integrare Research Unit UMR_S951, 91000, Evry-Courcouronnes, France.
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24
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Lu RM, Hsu HE, Perez SJLP, Kumari M, Chen GH, Hong MH, Lin YS, Liu CH, Ko SH, Concio CAP, Su YJ, Chang YH, Li WS, Wu HC. Current landscape of mRNA technologies and delivery systems for new modality therapeutics. J Biomed Sci 2024; 31:89. [PMID: 39256822 PMCID: PMC11389359 DOI: 10.1186/s12929-024-01080-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Accepted: 08/20/2024] [Indexed: 09/12/2024] Open
Abstract
Realizing the immense clinical potential of mRNA-based drugs will require continued development of methods to safely deliver the bioactive agents with high efficiency and without triggering side effects. In this regard, lipid nanoparticles have been successfully utilized to improve mRNA delivery and protect the cargo from extracellular degradation. Encapsulation in lipid nanoparticles was an essential factor in the successful clinical application of mRNA vaccines, which conclusively demonstrated the technology's potential to yield approved medicines. In this review, we begin by describing current advances in mRNA modifications, design of novel lipids and development of lipid nanoparticle components for mRNA-based drugs. Then, we summarize key points pertaining to preclinical and clinical development of mRNA therapeutics. Finally, we cover topics related to targeted delivery systems, including endosomal escape and targeting of immune cells, tumors and organs for use with mRNA vaccines and new treatment modalities for human diseases.
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Affiliation(s)
- Ruei-Min Lu
- Biomedical Translation Research Center, Academia Sinica, Taipei, 11571, Taiwan
| | - Hsiang-En Hsu
- Biomedical Translation Research Center, Academia Sinica, Taipei, 11571, Taiwan
| | | | - Monika Kumari
- Institute of Cellular and Organismic Biology, Academia Sinica, No. 128, Academia Road, Section 2, Taipei, 11529, Taiwan
| | - Guan-Hong Chen
- Biomedical Translation Research Center, Academia Sinica, Taipei, 11571, Taiwan
| | - Ming-Hsiang Hong
- Biomedical Translation Research Center, Academia Sinica, Taipei, 11571, Taiwan
| | - Yin-Shiou Lin
- Biomedical Translation Research Center, Academia Sinica, Taipei, 11571, Taiwan
| | - Ching-Hang Liu
- Biomedical Translation Research Center, Academia Sinica, Taipei, 11571, Taiwan
| | - Shih-Han Ko
- Biomedical Translation Research Center, Academia Sinica, Taipei, 11571, Taiwan
| | | | - Yi-Jen Su
- Institute of Cellular and Organismic Biology, Academia Sinica, No. 128, Academia Road, Section 2, Taipei, 11529, Taiwan
| | - Yi-Han Chang
- Biomedical Translation Research Center, Academia Sinica, Taipei, 11571, Taiwan
| | - Wen-Shan Li
- Biomedical Translation Research Center, Academia Sinica, Taipei, 11571, Taiwan.
- Institute of Chemistry, Academia Sinica, No. 128, Academia Road, Section 2, Taipei, 11529, Taiwan.
| | - Han-Chung Wu
- Biomedical Translation Research Center, Academia Sinica, Taipei, 11571, Taiwan.
- Institute of Cellular and Organismic Biology, Academia Sinica, No. 128, Academia Road, Section 2, Taipei, 11529, Taiwan.
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25
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Bolduc V, Sizov K, Brull A, Esposito E, Chen GS, Uapinyoying P, Sarathy A, Johnson KR, Bönnemann CG. Allele-specific CRISPR-Cas9 editing inactivates a single nucleotide variant associated with collagen VI muscular dystrophy. MOLECULAR THERAPY. NUCLEIC ACIDS 2024; 35:102269. [PMID: 39171142 PMCID: PMC11338111 DOI: 10.1016/j.omtn.2024.102269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 07/12/2024] [Indexed: 08/23/2024]
Abstract
The application of allele-specific gene editing tools can expand the therapeutic options for dominant genetic conditions, either via gene correction or via allelic gene inactivation in situations where haploinsufficiency is tolerated. Here, we used allele-targeted CRISPR-Cas9 guide RNAs (gRNAs) to introduce inactivating frameshifting indels at an SNV in the COL6A1 gene (c.868G>A; G290R), a variant that acts as dominant negative and that is associated with a severe form of congenital muscular dystrophy. We expressed SpCas9 along with allele-targeted gRNAs, without providing a repair template, in primary fibroblasts derived from four patients and one control subject. Amplicon deep sequencing for two gRNAs tested showed that single-nucleotide deletions accounted for the majority of indels introduced. While activity of the two gRNAs was greater at the G290R allele, both gRNAs were also active at the wild-type allele. To enhance allele selectivity, we introduced deliberate additional mismatches to one gRNA. One of these optimized gRNAs showed minimal activity at the WT allele, while generating productive edits and improving collagen VI matrix in cultured patient fibroblasts. This study strengthens the potential of gene editing to treat dominant-negative disorders, but also underscores the challenges in achieving allele selectivity with gRNAs.
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Affiliation(s)
- Véronique Bolduc
- Neurogenetics and Neuromuscular Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Katherine Sizov
- Neurogenetics and Neuromuscular Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Astrid Brull
- Neurogenetics and Neuromuscular Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Eric Esposito
- Neurogenetics and Neuromuscular Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Grace S. Chen
- Neurogenetics and Neuromuscular Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Prech Uapinyoying
- Neurogenetics and Neuromuscular Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
- Center for Genetic Medicine Research, Children’s National Research and Innovation Campus, Children’s National Hospital, Washington, DC 20012, USA
| | - Apurva Sarathy
- Neurogenetics and Neuromuscular Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Kory R. Johnson
- Bioinformatics Core, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Carsten G. Bönnemann
- Neurogenetics and Neuromuscular Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
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26
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Odunze U, Rustogi N, Devine P, Miller L, Pereira S, Vashist S, Snijder HJ, Corkill D, Sabirsh A, Douthwaite J, Bond N, Desai A. RNA encoded peptide barcodes enable efficient in vivo screening of RNA delivery systems. Nucleic Acids Res 2024; 52:9384-9396. [PMID: 39051560 PMCID: PMC11381334 DOI: 10.1093/nar/gkae648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 06/17/2024] [Accepted: 07/15/2024] [Indexed: 07/27/2024] Open
Abstract
Lipid nanoparticles (LNPs) have been demonstrated to hold great promise for the clinical advancement of RNA therapeutics. Continued exploration of LNPs for application in new disease areas requires identification and optimization of leads in a high throughput way. Currently available high throughput in vivo screening platforms are well suited to screen for cellular uptake but less so for functional cargo delivery. We report on a platform which measures functional delivery of LNPs using unique peptide 'barcodes'. We describe the design and selection of the peptide barcodes and the evaluation of these for the screening of LNPs. We show that proteomic analysis of peptide barcodes correlates with quantification and efficacy of barcoded reporter proteins both in vitro and in vivo and, that the ranking of selected LNPs using peptide barcodes in a pool correlates with ranking using alternative methods in groups of animals treated with individual LNPs. We show that this system is sensitive, selective, and capable of reducing the size of an in vivo study by screening up to 10 unique formulations in a single pool, thus accelerating the discovery of new technologies for mRNA delivery.
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Affiliation(s)
- Uchechukwu Odunze
- Cell, Gene and RNA Therapy, Discovery Sciences, R&D, AstraZeneca, Cambridge, UK
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Nitin Rustogi
- Physico-chemical Development, Biopharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Paul Devine
- Physico-chemical Development, Biopharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Lorraine Miller
- Animal Sciences and Technologies, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Sara Pereira
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Surender Vashist
- Cell, Gene and RNA Therapy, Discovery Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Harm Jan Snijder
- Discovery Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Dominic Corkill
- Bioscience in vivo, Early R&I, R&D, AstraZeneca, Cambridge, UK
| | - Alan Sabirsh
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Julie Douthwaite
- Cell, Gene and RNA Therapy, Discovery Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Nick Bond
- Physico-chemical Development, Biopharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Arpan Desai
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Cambridge, UK
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27
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Rha AK, Kan SH, Andrade-Heckman P, Christensen CL, Harb JF, Wang RY. Base editing of the GLB1 gene is therapeutic in GM1 gangliosidosis patient-derived cells. Mol Genet Metab 2024; 143:108568. [PMID: 39303319 DOI: 10.1016/j.ymgme.2024.108568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/19/2024] [Accepted: 08/20/2024] [Indexed: 09/22/2024]
Abstract
GM1 gangliosidosis is an autosomal recessive neurodegenerative lysosomal storage disease caused by pathogenic variants in the GLB1 gene, limiting the production of active lysosomal β-galactosidase. Phenotypic heterogeneity is due in part to variant type, location within GLB1, and the amount of residual enzyme activity; in the most severe form, death occurs in infancy. With no FDA approved therapeutics, development of efficacious strategies for the disease is pivotal. CRISPR/Cas based approaches have revolutionized precision medicine and have been indispensable to the development of treatments for several monogenic disorders with bespoke strategies central to current research pipelines. We used CRISPR/Cas-adenine base editing to correct the GLB1 c.380G>A (p.Cys127Tyr) variant in patient-derived dermal fibroblasts compound heterozygous with the GLB1 c.481T>G (p.Trp161Gly) pathogenic variant. Nucleofection of plasmids encoding the target sgRNA and ABEmax restored the canonical guanine (32.2 ± 2.2 % of the target allele) and synthesis of active β-galactosidase. Analysis of cellular markers of pathology revealed normalization of both primary glycoconjugate storage and lysosomal pathology. Furthermore, analysis of off-target sites nominated by the in silico tools Cas-OFFinder and/or CRISTA revealed no significant editing or indels. This study supports the use of CRISPR/Cas-based approaches for the treatment of GM1 gangliosidosis, and provides foundational data for future translational studies.
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Affiliation(s)
- Allisandra K Rha
- Research Institute, Children's Hospital of Orange County, Orange, CA 92868, United States
| | - Shih-Hsin Kan
- Research Institute, Children's Hospital of Orange County, Orange, CA 92868, United States
| | - Perla Andrade-Heckman
- Research Institute, Children's Hospital of Orange County, Orange, CA 92868, United States
| | - Chloe L Christensen
- Research Institute, Children's Hospital of Orange County, Orange, CA 92868, United States
| | - Jerry F Harb
- Research Institute, Children's Hospital of Orange County, Orange, CA 92868, United States
| | - Raymond Y Wang
- Division of Metabolic Disorders, Children's Hospital of Orange County Specialists, Orange, CA 92868, United States; Department of Pediatrics, University of California-Irvine School of Medicine, Irvine, CA 92697, United States.
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28
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Biscaia-Caleiras M, Fonseca NA, Lourenço AS, Moreira JN, Simões S. Rational formulation and industrial manufacturing of lipid-based complex injectables: Landmarks and trends. J Control Release 2024; 373:617-639. [PMID: 39002799 DOI: 10.1016/j.jconrel.2024.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 07/02/2024] [Accepted: 07/08/2024] [Indexed: 07/15/2024]
Abstract
Lipid-based complex injectables are renowned for their effectiveness in delivering drugs, with many approved products. While significant strides have been made in formulating nanosystems for small molecular weight drugs, a pivotal breakthrough emerged with the recognition of lipid nanoparticles as a promising platform for delivering nucleic acids. This finding has paved the way for tackling long-standing challenges in molecular and delivery aspects (e.g., mRNA stability, intracellular delivery) that have impeded the clinical translation of gene therapy, especially in the realm of immunotherapy. Nonetheless, developing and implementing new lipid-based delivery systems pose significant challenges, as industrial manufacturing of these formulations often involves complex, multi-batch processes, giving rise to issues related to scalability, stability, sterility, and regulatory compliance. To overcome these obstacles, embracing the principles of quality-by-design (QbD) is imperative. Furthermore, adopting cutting-edge manufacturing and process analytical tools (PAT) that facilitate the transition from batch to continuous production is essential. Herein, the key milestones and insights derived from the development of currently approved lipid- nanosystems will be explored. Additionally, a comprehensive and critical overview of the latest technologies and regulatory guidelines that underpin the creation of more efficient, scalable, and flexible manufacturing processes for complex lipid-based nanoformulations will be provided.
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Affiliation(s)
- Mariana Biscaia-Caleiras
- CNC - Center for Neurosciences and Cell Biology, Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Faculty of Medicine (Polo 1), Rua Larga, 3004-504 Coimbra, Portugal; Bluepharma-Indústria Farmacêutica, S.A., São Martinho do Bispo, 3045-016 Coimbra, Portugal; Univ Coimbra-University of Coimbra, CIBB, Faculty of Pharmacy, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Nuno A Fonseca
- Bluepharma-Indústria Farmacêutica, S.A., São Martinho do Bispo, 3045-016 Coimbra, Portugal
| | - Ana Sofia Lourenço
- Bluepharma-Indústria Farmacêutica, S.A., São Martinho do Bispo, 3045-016 Coimbra, Portugal
| | - João Nuno Moreira
- CNC - Center for Neurosciences and Cell Biology, Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Faculty of Medicine (Polo 1), Rua Larga, 3004-504 Coimbra, Portugal; Univ Coimbra-University of Coimbra, CIBB, Faculty of Pharmacy, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Sérgio Simões
- CNC - Center for Neurosciences and Cell Biology, Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Faculty of Medicine (Polo 1), Rua Larga, 3004-504 Coimbra, Portugal; Bluepharma-Indústria Farmacêutica, S.A., São Martinho do Bispo, 3045-016 Coimbra, Portugal; Univ Coimbra-University of Coimbra, CIBB, Faculty of Pharmacy, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
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29
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Wang X, Guo T, Niu L, Zheng B, Huang W, Xu H, Huang W. Engineered targeting OIP5 sensitizes bladder cancer to chemotherapy resistance via TRIP12-PPP1CB-YBX1 axis. Oncogene 2024; 43:2850-2867. [PMID: 39155295 DOI: 10.1038/s41388-024-03136-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 08/12/2024] [Accepted: 08/13/2024] [Indexed: 08/20/2024]
Abstract
Chemoresistance is an important cause of treatment failure in bladder cancer, and identifying genes that confer drug resistance is an important step toward developing new therapeutic strategies to improve treatment outcomes. In the present study, we show that gemcitabine plus cisplatin (GEM/DDP) therapy induces NF-κB signaling, which promotes p65-mediated transcriptional activation of OIP5. OIP5 recruits the E3 ubiquitin ligase TRIP12 to bind to and degrade the phosphatase PPP1CB, thereby enhancing the transcription factor activity of YBX1. This in turn upregulates drug-resistance-related genes under the transcriptional control of YBX1, leading to chemoresistance. Moreover, PPP1CB degradation can enhance the phosphorylation activity of IKKβ, triggering the NF-κB signaling cascade, which further stimulates OIP5 gene expression, thus forming a negative feedback regulatory loop. Consistently, elevated OIP5 expression was associated with chemoresistance and poor prognosis in patients with bladder cancer. Furthermore, we used a CRISPR/Cas9-based engineered gene circuit, which can monitor the progression of chemoresistance in real-time, to induce OIP5 knockout upon detection of increased NF-κB signaling. The gene circuit significantly inhibited tumor cell growth in vivo, underscoring the potential for synergy between gene therapy and chemotherapy in the treatment of cancer.
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Affiliation(s)
- Xianteng Wang
- Department of Urology, Shenzhen Institute of Translational Medicine, Medical Innovation Technology Transformation Center, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, International Cancer Center of Shenzhen University, Shenzhen, China
- Molecular Cancer Research Center, School of Medicine, Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, China
| | - Ting Guo
- Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Guangdong Key Laboratory of Systems Biology and Synthetic Biology for Urogenital Tumors, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
- Graduate School, Guangxi University of Chinese Medicine, Nanning, China
| | - Liman Niu
- Department of Urology, Shenzhen Institute of Translational Medicine, Medical Innovation Technology Transformation Center, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, International Cancer Center of Shenzhen University, Shenzhen, China
| | - Binbin Zheng
- Department of Urology, Shenzhen Institute of Translational Medicine, Medical Innovation Technology Transformation Center, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, International Cancer Center of Shenzhen University, Shenzhen, China
| | - Wei Huang
- Department of Biology, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Haibo Xu
- Department of Urology, Shenzhen Institute of Translational Medicine, Medical Innovation Technology Transformation Center, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, International Cancer Center of Shenzhen University, Shenzhen, China
| | - Weiren Huang
- Department of Urology, Shenzhen Institute of Translational Medicine, Medical Innovation Technology Transformation Center, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, International Cancer Center of Shenzhen University, Shenzhen, China.
- Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
- Guangdong Key Laboratory of Systems Biology and Synthetic Biology for Urogenital Tumors, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China.
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30
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Jang HJ, Shah NM, Maeng JH, Liang Y, Basri NL, Ge J, Qu X, Mahlokozera T, Tzeng SC, Williams RB, Moore MJ, Annamalai D, Chen JY, Lee HJ, DeSouza PA, Li D, Xing X, Kim AH, Wang T. Epigenetic therapy potentiates transposable element transcription to create tumor-enriched antigens in glioblastoma cells. Nat Genet 2024; 56:1903-1913. [PMID: 39223316 DOI: 10.1038/s41588-024-01880-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/23/2024] [Indexed: 09/04/2024]
Abstract
Inhibiting epigenetic modulators can transcriptionally reactivate transposable elements (TEs). These TE transcripts often generate unique peptides that can serve as immunogenic antigens for immunotherapy. Here, we ask whether TEs activated by epigenetic therapy could appreciably increase the antigen repertoire in glioblastoma, an aggressive brain cancer with low mutation and neoantigen burden. We treated patient-derived primary glioblastoma stem cell lines, an astrocyte cell line and primary fibroblast cell lines with epigenetic drugs, and identified treatment-induced, TE-derived transcripts that are preferentially expressed in cancer cells. We verified that these transcripts could produce human leukocyte antigen class I-presented antigens using liquid chromatography with tandem mass spectrometry pulldown experiments. Importantly, many TEs were also transcribed, even in proliferating nontumor cell lines, after epigenetic therapy, which suggests that targeted strategies like CRISPR-mediated activation could minimize potential side effects of activating unwanted genomic regions. The results highlight both the need for caution and the promise of future translational efforts in harnessing treatment-induced TE-derived antigens for targeted immunotherapy.
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Affiliation(s)
- H Josh Jang
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Nakul M Shah
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Ju Heon Maeng
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Yonghao Liang
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Noah L Basri
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Jiaxin Ge
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Xuan Qu
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Tatenda Mahlokozera
- Department of Neurological Surgery, Washington University School of Medicine, St Louis, MO, USA
| | | | | | - Michael J Moore
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Devi Annamalai
- Department of Neurological Surgery, Washington University School of Medicine, St Louis, MO, USA
| | - Justin Y Chen
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Hyung Joo Lee
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Patrick A DeSouza
- Department of Neurological Surgery, Washington University School of Medicine, St Louis, MO, USA
| | - Daofeng Li
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Xiaoyun Xing
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Albert H Kim
- Department of Neurological Surgery, Washington University School of Medicine, St Louis, MO, USA.
- The Brain Tumor Center, Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO, USA.
| | - Ting Wang
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA.
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA.
- McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA.
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31
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Ng BW, Kaukonen MK, McClements ME, Shamsnajafabadi H, MacLaren RE, Cehajic-Kapetanovic J. Genetic therapies and potential therapeutic applications of CRISPR activators in the eye. Prog Retin Eye Res 2024; 102:101289. [PMID: 39127142 DOI: 10.1016/j.preteyeres.2024.101289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024]
Abstract
Conventional gene therapy involving supplementation only treats loss-of-function diseases and is limited by viral packaging sizes, precluding therapy of large genes. The discovery of CRISPR/Cas has led to a paradigm shift in the field of genetic therapy, with the promise of precise gene editing, thus broadening the range of diseases that can be treated. The initial uses of CRISPR/Cas have focused mainly on gene editing or silencing of abnormal variants via utilising Cas endonuclease to trigger the target cell endogenous non-homologous end joining. Subsequently, the technology has evolved to modify the Cas enzyme and even its guide RNA, leading to more efficient editing tools in the form of base and prime editing. Further advancements of this CRISPR/Cas technology itself have expanded its functional repertoire from targeted editing to programmable transactivation, shifting the therapeutic focus to precise endogenous gene activation or upregulation with the potential for epigenetic modifications. In vivo experiments using this platform have demonstrated the potential of CRISPR-activators (CRISPRa) to treat various loss-of-function diseases, as well as in regenerative medicine, highlighting their versatility to overcome limitations associated with conventional strategies. This review summarises the molecular mechanisms of CRISPRa platforms, the current applications of this technology in vivo, and discusses potential solutions to translational hurdles for this therapy, with a focus on ophthalmic diseases.
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Affiliation(s)
- Benjamin Wj Ng
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Maria K Kaukonen
- Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK; Department of Medical and Clinical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Michelle E McClements
- Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Hoda Shamsnajafabadi
- Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Robert E MacLaren
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Jasmina Cehajic-Kapetanovic
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK.
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32
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Feng S, Roll GR, Rouhani FJ, Sanchez Fueyo A. The future of liver transplantation. Hepatology 2024; 80:674-697. [PMID: 38537154 DOI: 10.1097/hep.0000000000000873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 03/02/2024] [Indexed: 06/15/2024]
Abstract
Over the last 50 years, liver transplantation has evolved into a procedure routinely performed in many countries worldwide. Those able to access this therapy frequently experience a miraculous risk-benefit ratio, particularly if they face the imminently life-threatening disease. Over the decades, the success of liver transplantation, with dramatic improvements in early posttransplant survival, has aggressively driven demand. However, despite the emergence of living donors to augment deceased donors as a source of organs, supply has lagged far behind demand. As a result, rationing has been an unfortunate focus in recent decades. Recent shifts in the epidemiology of liver disease combined with transformative innovations in liver preservation suggest that the underlying premise of organ shortage may erode in the foreseeable future. The focus will sharpen on improving equitable access while mitigating constraints related to workforce training, infrastructure for organ recovery and rehabilitation, and their associated costs. Research efforts in liver preservation will undoubtedly blossom with the aim of optimizing both the timing and conditions of transplantation. Coupled with advances in genetic engineering, regenerative biology, and cellular therapies, the portfolio of innovation, both broad and deep, offers the promise that, in the future, liver transplantation will not only be broadly available to those in need but also represent a highly durable life-saving therapy.
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Affiliation(s)
- Sandy Feng
- Department of Surgery, Division of Transplant Surgery, University of California, San Francisco, California, USA
| | - Garrett R Roll
- Department of Surgery, Division of Transplant Surgery, University of California, San Francisco, California, USA
| | - Foad J Rouhani
- Tissue Regeneration and Clonal Evolution Laboratory, The Francis Crick Institute, London, UK
- Institute of Liver Studies, King's College London, King's College Hospital, NHS Foundation Trust, London, UK
| | - Alberto Sanchez Fueyo
- Institute of Liver Studies, King's College London, King's College Hospital, NHS Foundation Trust, London, UK
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33
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Johnston JR, Adler ED. Precision Genetic Therapies: Balancing Risk and Benefit in Patients with Heart Failure. Curr Cardiol Rep 2024; 26:973-983. [PMID: 39110386 PMCID: PMC11379760 DOI: 10.1007/s11886-024-02096-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/02/2024] [Indexed: 09/07/2024]
Abstract
PURPOSE OF REVIEW Precision genetic medicine is evolving at a rapid pace and bears significant implications for clinical cardiology. Herein, we discuss the latest advancements and emerging strategies in gene therapy for cardiomyopathy and heart failure. RECENT FINDINGS Elucidating the genetic architecture of heart failure has paved the way for precision therapies in cardiovascular medicine. Recent preclinical studies and early-phase clinical trials have demonstrated encouraging results that support the development of gene therapies for heart failure arising from a variety of etiologies. In addition to the discovery of new therapeutic targets, innovative delivery platforms are being leveraged to improve the safety and efficacy of cardiac gene therapies. Precision genetic therapy represents a potentially safe and effective approach for improving outcomes in patients with heart failure. It holds promise for radically transforming the treatment paradigm for heart failure by directly targeting the underlying etiology. As this new generation of cardiovascular medicines progress to the clinic, it is especially important to carefully evaluate the benefits and risks for patients.
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Affiliation(s)
- Jamie R Johnston
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL, 32306, USA
| | - Eric D Adler
- Division of Cardiology, Department of Internal Medicine, University of California San Diego, La Jolla, CA, 92037, USA.
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34
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Eygeris Y, Henderson MI, Curtis AG, Jozić A, Stoddard J, Reynaga R, Chirco KR, Su GLN, Neuringer M, Lauer AK, Ryals RC, Sahay G. Preformed Vesicle Approach to LNP Manufacturing Enhances Retinal mRNA Delivery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400815. [PMID: 38738752 DOI: 10.1002/smll.202400815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/20/2024] [Indexed: 05/14/2024]
Abstract
Complete encapsulation of nucleic acids by lipid-based nanoparticles (LNPs) is often thought to be one of the main prerequisites for successful nucleic acid delivery, as the lipid environment protects mRNA from degradation by external nucleases and assists in initiating delivery processes. However, delivery of mRNA via a preformed vesicle approach (PFV-LNPs) defies this precondition. Unlike traditional LNPs, PFV-LNPs are formed via a solvent-free mixing process, leading to a superficial mRNA localization. While demonstrating low encapsulation efficiency in the RiboGreen assay, PFV-LNPs improved delivery of mRNA to the retina by up to 50% compared to the LNP analogs across several benchmark formulations, suggesting the utility of this approach regardless of the lipid composition. Successful mRNA and gene editors' delivery is observed in the retinal pigment epithelium and photoreceptors and validated in mice, non-human primates, and human retinal organoids. Deploying PFV-LNPs in gene editing experiments result in a similar extent of gene editing compared to analogous LNP (up to 3% on genomic level) in the Ai9 reporter mouse model; but, remarkably, retinal tolerability is significantly improved for PFV-LNP treatment. The study findings indicate that the LNP formulation process can greatly influence mRNA transfection and gene editing outcomes, improving LNP treatment safety without sacrificing efficacy.
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Affiliation(s)
- Yulia Eygeris
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, 97201, USA
| | - Michael I Henderson
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, 97201, USA
| | - Allison G Curtis
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97201, USA
| | - Antony Jozić
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, 97201, USA
| | - Jonathan Stoddard
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Rene Reynaga
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Kathleen R Chirco
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97201, USA
| | - Grace Li-Na Su
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97201, USA
| | - Martha Neuringer
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97201, USA
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Andreas K Lauer
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97201, USA
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Renee C Ryals
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97201, USA
| | - Gaurav Sahay
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, 97201, USA
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97201, USA
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR, 97201, USA
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35
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Clerc OF, Vijayakumar S, Dorbala S. Radionuclide Imaging of Cardiac Amyloidosis: An Update and Future Aspects. Semin Nucl Med 2024; 54:717-732. [PMID: 38960850 DOI: 10.1053/j.semnuclmed.2024.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 05/27/2024] [Accepted: 05/30/2024] [Indexed: 07/05/2024]
Abstract
Cardiac amyloidosis (CA) is caused by the misfolding, accumulation and aggregation of proteins into large fibrils in the extracellular compartment of the myocardium, leading to restrictive cardiomyopathy, heart failure and death. The major forms are transthyretin (ATTR) CA and light-chain (AL) CA, based on the respective precursor protein. Each of them requires early diagnosis for a timely treatment initiation that will improve patient outcomes. For this, radionuclide imaging is essentially used as single-photon emission computed tomography (SPECT) with bone-avid radiotracers or as positron emission tomography (PET) with amyloid-binding radiotracers. Both offer unprecedented specificity for the diagnostic of CA. SPECT has even revolutionized the diagnosis of ATTR-CA by making it non-invasive. Indeed, SPECT has now entered the standard diagnostic pathway to CA and has led to earlier diagnosis of the disease. SPECT also modified the epidemiology of ATTR-CA, highlighting that the disease is much more frequent than previously believed, and showing that ATTR-CA plays a substantial role in HFpEF and aortic stenosis, particularly among elderly patients. In parallel, amyloid-binding radiotracers for PET have accumulated a substantial amount of evidence, but are not approved for clinical use in CA yet. Further studies are needed to refine acquisition protocols and validate results in broader populations. Unlike bone-avid SPECT radiotracers, PET radiotracers have been specifically created to bind to amyloid fibrils. Thus, PET is the only imaging method that is truly specific for amyloid deposits and very sensitive to any amyloid type. Indeed, PET can not only detect ATTR-CA, but also AL-CA and rare hereditary forms. For both SPECT and PET, advances in quantitation of myocardial uptake have generated more granular and reproducible findings, paving the way for progress in earlier diagnosis, risk stratification and therapeutic response monitoring. Encouraging findings have shown that SPECT and PET are sensitive to early CA when other diagnostic methods are negative. Both radionuclide imaging techniques can predict adverse outcomes, but more evidence is needed to determine how to use them in conjunction with usual prognostic staging scores. Studies on follow-up imaging after therapy suggested that SPECT and PET can capture myocardial changes in CA, but again, more data are needed to meaningfully interpret such changes. Based on all these promising results, radionuclide imaging has the potential to further impact the landscape of CA in diagnosis, prognosis and follow-up, but also to substantially contribute to the assessment of novel therapies that will improve the lives of patients with CA.
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Affiliation(s)
- Olivier F Clerc
- Division of Nuclear Medicine, Department of Radiology, Brigham and Women's Hospital, Boston, MA; Cardiac Amyloidosis Program, Division of Cardiology, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | - Shilpa Vijayakumar
- Division of Nuclear Medicine, Department of Radiology, Brigham and Women's Hospital, Boston, MA; Cardiac Amyloidosis Program, Division of Cardiology, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | - Sharmila Dorbala
- Division of Nuclear Medicine, Department of Radiology, Brigham and Women's Hospital, Boston, MA; Cardiac Amyloidosis Program, Division of Cardiology, Department of Medicine, Brigham and Women's Hospital, Boston, MA; CV Imaging Program, Cardiovascular Division and Department of Radiology, Brigham and Women's Hospital, Boston, MA.
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Leung N, Nasr SH. 2024 Update on Classification, Etiology, and Typing of Renal Amyloidosis: A Review. Am J Kidney Dis 2024; 84:361-373. [PMID: 38514011 DOI: 10.1053/j.ajkd.2024.01.530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 12/20/2023] [Accepted: 01/29/2024] [Indexed: 03/23/2024]
Abstract
Amyloidosis is a protein folding disease that causes organ injuries and even death. In humans, 42 proteins are now known to cause amyloidosis. Some proteins become amyloidogenic as a result of a pathogenic variant as seen in hereditary amyloidoses. In acquired forms of amyloidosis, the proteins form amyloid in their wild-type state. Four types (serum amyloid A, transthyretin, apolipoprotein A-IV, and β2-macroglobulin) of amyloid can occur either as acquired or as a mutant. Iatrogenic amyloid from injected protein medications have also been reported and AIL1RAP (anakinra) has been recently found to involve the kidney. Finally, the mechanism of how leukocyte cell-derived chemotaxin 2 (ALECT2) forms amyloid remains unknown. This article reviews the amyloids that involve the kidney and how they are typed.
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Affiliation(s)
- Nelson Leung
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota; Division of Hematology, Mayo Clinic, Rochester, Minnesota.
| | - Samih H Nasr
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
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37
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Vlachopoulos C, Lazaros G. Cardiogenetics: que será, será. Ou non? Hellenic J Cardiol 2024; 79:1-2. [PMID: 39300667 DOI: 10.1016/j.hjc.2024.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2024] Open
Affiliation(s)
- Charalambos Vlachopoulos
- First Cardiology Department, School of Medicine, Hippokration General Hospital, National and Kapodistrian University of Athens, Dionysiou Aiginitou 8, 11528, Athens, Greece.
| | - George Lazaros
- First Cardiology Department, School of Medicine, Hippokration General Hospital, National and Kapodistrian University of Athens, Dionysiou Aiginitou 8, 11528, Athens, Greece
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Takács K, Varga B, Farkas V, Perczel A, Grolmusz V. Opening Amyloid-Windows to the secondary structure of proteins: The amyloidogenecity increases tenfold inside beta-sheets. Comput Biol Med 2024; 179:108863. [PMID: 39024903 DOI: 10.1016/j.compbiomed.2024.108863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 06/29/2024] [Accepted: 07/06/2024] [Indexed: 07/20/2024]
Abstract
Methods from artificial intelligence (AI), in general, and machine learning, in particular, have kept conquering new territories in numerous areas of science. Most of the applications of these techniques are restricted to the classification of large data sets, but new scientific knowledge can seldom be inferred from these tools. Here we show that an AI-based amyloidogenecity predictor can strongly differentiate the border- and the internal hexamers of β-pleated sheets when screening all the Protein Data Bank-deposited homology-filtered protein structures. Our main result shows that more than 30% of internal hexamers of β sheets are predicted to be amyloidogenic, while just outside the border regions, only 3% are predicted as such. This result may elucidate a general protection mechanism of proteins against turning into amyloids: if the borders of β-sheets were amyloidogenic, then the whole β sheet could turn more easily into an insoluble amyloid-structure, characterized by periodically repeated parallel β-sheets. We also present that no analogous phenomenon exists on the borders of α-helices or randomly chosen subsequences of the studied protein structures.
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Affiliation(s)
- Kristóf Takács
- PIT Bioinformatics Group, Eötvös University, H-1117 Budapest, Hungary.
| | - Bálint Varga
- PIT Bioinformatics Group, Eötvös University, H-1117 Budapest, Hungary.
| | - Viktor Farkas
- HUN-REN -ELTE Protein Modeling Research Group, H-1117 Budapest, Hungary.
| | - András Perczel
- HUN-REN -ELTE Protein Modeling Research Group, H-1117 Budapest, Hungary; Laboratory of Structural Chemistry and Biology, Eötvös University, H-1117, Budapest, Hungary.
| | - Vince Grolmusz
- PIT Bioinformatics Group, Eötvös University, H-1117 Budapest, Hungary; Uratim Ltd., H-1118 Budapest, Hungary.
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39
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Bampatsias D, Wardhere A, Maurer MS. Treatment of transthyretin cardiac amyloidosis. Curr Opin Cardiol 2024; 39:407-416. [PMID: 38652263 PMCID: PMC11305969 DOI: 10.1097/hco.0000000000001156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
PURPOSE OF REVIEW Tafamidis is currently the only approved disease-modifying treatment for ATTR-CM. However, there have been important developments in the treatment of ATTR-CM, as the results of two phase 3 trials were published and several other trials are in their final stages. In this review, we summarize current and future therapies for ATTR-CM. RECENT FINDINGS Recently, acoramidis, a TTR stabilizer has been proven to be effective in reducing mortality and morbidity compared to placebo in the ATTRibute-CM trial. Additionally, patisiran, an RNA silencer, preserved functional capacity and quality of life compared to placebo in the APOLLO-B trial. However, the FDA declined to approve patisiran for ATTR-CM. The results of phase 1 trial of ALXN2220, an antiamyloid antibody raise hope for reversal of myocardial damage by amyloid depletion. Phase 3 trials evaluating the efficacy of different RNA silencers, gene editing with CRISPR-Cas9, and other anti-amyloid antibodies are ongoing. SUMMARY Therapies targeting different mechanism in the pathophysiology of ATTR-CM provide new alternatives for treating patients with ATTR-CM. Future research should focus on comparing their effectiveness, the potential of combined treatment with agents from different classes and on identifying the patients who will benefit most from each class of medication.
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Affiliation(s)
- Dimitrios Bampatsias
- Cardiac Amyloidosis Program, Department of Cardiology, Columbia University Irving Medical Center, New York, USA
| | - Abdirahman Wardhere
- Cardiac Amyloidosis Program, Department of Cardiology, Columbia University Irving Medical Center, New York, USA
| | - Mathew S. Maurer
- Cardiac Amyloidosis Program, Department of Cardiology, Columbia University Irving Medical Center, New York, USA
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40
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Cullis PR, Felgner PL. The 60-year evolution of lipid nanoparticles for nucleic acid delivery. Nat Rev Drug Discov 2024; 23:709-722. [PMID: 38965378 DOI: 10.1038/s41573-024-00977-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2024] [Indexed: 07/06/2024]
Abstract
Delivery of genetic information to the interior of target cells in vivo has been a major challenge facing gene therapies. This barrier is now being overcome, owing in part to dramatic advances made by lipid-based systems that have led to lipid nanoparticles (LNPs) that enable delivery of nucleic acid-based vaccines and therapeutics. Examples include the clinically approved COVID-19 LNP mRNA vaccines and Onpattro (patisiran), an LNP small interfering RNA therapeutic to treat transthyretin-induced amyloidosis (hATTR). In addition, a host of promising LNP-enabled vaccines and gene therapies are in clinical development. Here, we trace this success to two streams of research conducted over the past 60 years: the discovery of the transfection properties of lipoplexes composed of positively charged cationic lipids complexed with nucleic acid cargos and the development of lipid nanoparticles using ionizable cationic lipids. The fundamental insights gained from these two streams of research offer potential delivery solutions for most forms of gene therapies.
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Affiliation(s)
- P R Cullis
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, British Columbia, Canada.
| | - P L Felgner
- Department of Physiology & Biophysics, University of California, Irvine, CA, USA.
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41
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Wang S, Wang X, Wang Y. The Progress and Promise of Lineage Reprogramming Strategies for Liver Regeneration. Cell Mol Gastroenterol Hepatol 2024:101395. [PMID: 39218152 DOI: 10.1016/j.jcmgh.2024.101395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 08/26/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
The liver exhibits remarkable regenerative capacity. However, the limited ability of primary human hepatocytes to proliferate in vitro, combined with a compromised regenerative capacity induced by pathological conditions in vivo, presents significant obstacles to effective liver regeneration following liver injuries and diseases. Developing strategies to compensate for the loss of endogenous hepatocytes is crucial for overcoming these challenges, and this remains an active area of investigation. Lineage reprogramming, the process of directly converting one cell type into another bypassing the intermediate pluripotent state, has emerged as a promising method for generating specific cell types for therapeutic purposes in regenerative medicine. Here, we discuss the recent progress and emergent technologies in lineage reprogramming into hepatic cells, and their potential applications in enhancing liver regeneration or treating liver disease models. We also address controversies and challenges that confront this field.
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Affiliation(s)
- Shuyong Wang
- Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, the Eighth Medical Center of PLA General Hospital, Beijing, China.
| | - Xuan Wang
- Hepatopancreatobiliary Center, Clinical Translational Science Center, Beijing Tsinghua Changgung Hospital, Beijing, China
| | - Yunfang Wang
- Hepatopancreatobiliary Center, Clinical Translational Science Center, Beijing Tsinghua Changgung Hospital, Beijing, China.
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Cianci V, Cianci A, Sapienza D, Cracò A, Germanà A, Ieni A, Gualniera P, Asmundo A, Mondello C. Epidemiological Changes in Transthyretin Cardiac Amyloidosis: Evidence from In Vivo Data and Autoptic Series. J Clin Med 2024; 13:5140. [PMID: 39274353 PMCID: PMC11396392 DOI: 10.3390/jcm13175140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2024] [Revised: 08/27/2024] [Accepted: 08/28/2024] [Indexed: 09/16/2024] Open
Abstract
Cardiac amyloidosis is an infiltrative disease that causes progressive myocardial impairment secondary to amyloid fibril deposition in the extracellular space of the myocardium. Many amyloid precursors, including transthyretin protein, are known to determine cardiac damage by aggregating and precipitating in cardiac tissue. Transthyretin cardiac amyloidosis may be either caused by rare genetic mutations of the transthyretin gene in the hereditary variant, or may arise as a consequence of age-related mechanisms in the acquired form. Although it has been labeled as a rare disease, in recent years, transthyretin cardiac amyloidosis has stood out as an emerging cause of aortic stenosis, unexplained left ventricular hypertrophy and heart failure with preserved ejection fraction, particularly in the elderly. Indeed, the integration of data deriving from both in vivo imaging techniques (whose advancement in the last years has allowed to achieve an easier and more accessible non-invasive diagnosis) and forensic studies (showing a prevalence of amyloid deposition in cardiac tissue of elderly patients up to 29%) suggests that cardiac amyloidosis is a more common disease than traditionally considered. Thanks to all the improvements in non-invasive diagnostic techniques, along with the development of efficacious therapies offering improvements in survival rates, transthyretin cardiac amyloidosis has been transformed from an incurable and infrequent condition to a relatively more diffuse and treatable disease, which physicians should take into consideration in the differential diagnostic processes in daily clinical practice.
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Affiliation(s)
- Vincenzo Cianci
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Legal Medicine, University of Messina, Via Consolare Valeria, 1, 98125 Messina, Italy
| | - Alessio Cianci
- Department of Cardiovascular Medicine, Fondazione Policlinico Universitario A. Gemelli-IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy
| | - Daniela Sapienza
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Legal Medicine, University of Messina, Via Consolare Valeria, 1, 98125 Messina, Italy
| | - Annalisa Cracò
- Department of Biomedical Sciences and Morphological and Functional Imaging, Diagnostic and Interventional Radiology Unit, University Hospital Messina, 98168 Messina, Italy
| | - Antonino Germanà
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, Via Palatucci snc, University of Messina, 98168 Messina, Italy
| | - Antonio Ieni
- Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", Section of Pathology, University of Messina, 98125 Messina, Italy
| | - Patrizia Gualniera
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Legal Medicine, University of Messina, Via Consolare Valeria, 1, 98125 Messina, Italy
| | - Alessio Asmundo
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Legal Medicine, University of Messina, Via Consolare Valeria, 1, 98125 Messina, Italy
| | - Cristina Mondello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Legal Medicine, University of Messina, Via Consolare Valeria, 1, 98125 Messina, Italy
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Simoni C, Barbon E, Muro AF, Cantore A. In vivo liver targeted genome editing as therapeutic approach: progresses and challenges. Front Genome Ed 2024; 6:1458037. [PMID: 39246827 PMCID: PMC11378722 DOI: 10.3389/fgeed.2024.1458037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Accepted: 08/12/2024] [Indexed: 09/10/2024] Open
Abstract
The liver is an essential organ of the body that performs several vital functions, including the metabolism of biomolecules, foreign substances, and toxins, and the production of plasma proteins, such as coagulation factors. There are hundreds of genetic disorders affecting liver functions and, for many of them, the only curative option is orthotopic liver transplantation, which nevertheless entails many risks and long-term complications. Some peculiar features of the liver, such as its large blood flow supply and the tolerogenic immune environment, make it an attractive target for in vivo gene therapy approaches. In recent years, several genome-editing tools mainly based on the clustered regularly interspaced short palindromic repeats associated protein 9 (CRISPR-Cas9) system have been successfully exploited in the context of liver-directed preclinical or clinical therapeutic applications. These include gene knock-out, knock-in, activation, interference, or base and prime editing approaches. Despite many achievements, important challenges still need to be addressed to broaden clinical applications, such as the optimization of the delivery methods, the improvement of the editing efficiency, and the risk of on-target or off-target unwanted effects and chromosomal rearrangements. In this review, we highlight the latest progress in the development of in vivo liver-targeted genome editing approaches for the treatment of genetic disorders. We describe the technological advancements that are currently under investigation, the challenges to overcome for clinical applicability, and the future perspectives of this technology.
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Affiliation(s)
- Chiara Simoni
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Elena Barbon
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Andrés F Muro
- International Center for Genetic Engineering and Biotechnology, Trieste, Italy
| | - Alessio Cantore
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
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Hainsworth AH, Blackburn TP, Bradshaw EM, Elahi FM, Gorelick PB, Isaacs JD, Wallin A, Williams SC. The promise of molecular science in brain health. What breakthroughs are anticipated in the next 20 years? CEREBRAL CIRCULATION - COGNITION AND BEHAVIOR 2024; 7:100364. [PMID: 39263555 PMCID: PMC11387710 DOI: 10.1016/j.cccb.2024.100364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 06/28/2024] [Accepted: 08/19/2024] [Indexed: 09/13/2024]
Abstract
Brain health means optimal physiological brain function across the normal life-course. It encompasses not only healthy brain aging but also brain diseases, their diagnosis and treatment. In all these areas, molecular science has advanced our understanding. This multi-disciplinary review combines viewpoints from laboratory science, clinical medicine and the bioscience industry. First, we review the advances that molecular science has brought to brain health in the past twenty years. These include therapeutic antibodies for CNS diseases (multiple sclerosis, Alzheimer disease) and the dramatic introduction of RNA-targeted therapeutics. Second, we highlight areas where greater molecular understanding is needed. Salient examples are the relation of brain structure to cognitive symptoms, and molecular biomarkers for diagnosis, target discovery and testing of interventions. Finally, we speculate on aspects of molecular science that are likely to advance brain health in the next twenty years. These include: cell senescence and chronobiology; gene editing (notably, CRISPR) and RNA targeting (RNA interference, miRNA manipulation); brain-immune interactions; novel drug targets (AQP4, HIF1, Toll-like receptors); and novel chemistry to make new drugs (molecular machines, quantum molecular modelling and "click" chemistry). Early testing of the relationships between molecular pathways and clinical manifestations will drive much-needed breakthroughs in neurology and psychiatry.
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Affiliation(s)
- Atticus H Hainsworth
- Molecular & Clinical Sciences Research Institute, St George's University of London, London, SW17 0RE, UK
- Department of Neurology, St George's University Hospitals NHS Foundation Trust, Blackshaw Road, London, SW17 0QT, UK
| | - Thomas P Blackburn
- Translational Pharmacology BioVentures, Leigh on Sea, Essex, SS9 2UA, UK
- TPBioVentures, Hoboken, NJ, USA
| | - Elizabeth M Bradshaw
- Carol and Gene Ludwig Center for Research on Neurodegeneration, Department of Neurology, Columbia University Irving Medical Center, New York, NY, USA
| | - Fanny M Elahi
- Departments of Neurology and Neuroscience, Ronald M. Loeb Center for Alzheimer's Disease, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, 1 Gustave L. Levy Place, New York, NY 10029-5674, USA
- James J. Peter VA Medical Center, Bronx, NY, USA
| | - Philip B Gorelick
- Davee Department of Neurology, Northwestern University Feinberg School of Medicine, 635 N. Michigan Avenue, Chicago, IL 60611, USA
| | - Jeremy D Isaacs
- Molecular & Clinical Sciences Research Institute, St George's University of London, London, SW17 0RE, UK
- Department of Neurology, St George's University Hospitals NHS Foundation Trust, Blackshaw Road, London, SW17 0QT, UK
| | - Anders Wallin
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Mölndal, Sweden
| | - Steven Cr Williams
- Department of Neuroimaging, Institute of Psychiatry, Psychology & Neuroscience, Kings College London. SE5 8AF, UK
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Bellofatto IA, Nikolaou PE, Andreadou I, Canepa M, Carbone F, Ghigo A, Heusch G, Kleinbongard P, Maack C, Podesser BK, Stamatelopoulos K, Stellos K, Vilahur G, Montecucco F, Liberale L. Mechanisms of damage and therapies for cardiac amyloidosis: a role for inflammation? Clin Res Cardiol 2024:10.1007/s00392-024-02522-2. [PMID: 39167195 DOI: 10.1007/s00392-024-02522-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Accepted: 08/12/2024] [Indexed: 08/23/2024]
Abstract
The term cardiac amyloidosis (CA) refers to the accumulation of extracellular amyloid deposits in the heart because of different conditions often affecting multiple organs including brain, kidney and liver. Notably, cardiac involvement significantly impacts prognosis of amyloidosis, with cardiac biomarkers playing a pivotal role in prognostic stratification. Therapeutic management poses a challenge due to limited response to conventional heart failure therapies, necessitating targeted approaches aimed at preventing, halting or reversing amyloid deposition. Mechanisms underlying organ damage in CA are multifactorial, involving proteotoxicity, oxidative stress, and mechanical interference. While the role of inflammation in CA remains incompletely understood, emerging evidence suggests its potential contribution to disease progression as well as its utility as a therapeutic target. This review reports on the cardiac involvement in systemic amyloidosis, its prognostic role and how to assess it. Current and emerging therapies will be critically discussed underscoring the need for further efforts aiming at elucidating CA pathophysiology. The emerging evidence suggesting the contribution of inflammation to disease progression and its prognostic role will also be reviewed possibly offering insights into novel therapeutic avenues for CA.
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Affiliation(s)
- Ilaria Anna Bellofatto
- Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132, Genoa, Italy
| | - Panagiota Efstathia Nikolaou
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15771, Athens, Greece
| | - Ioanna Andreadou
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, 15771, Athens, Greece
| | - Marco Canepa
- Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132, Genoa, Italy
- Cardiology Unit, Ospedale Policlinico San Martino IRCCS, Genoa, Italy
| | - Federico Carbone
- Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, L.Go R. Benzi 10, 16132, Genoa, Italy
| | - Alessandra Ghigo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center "Guido Tarone", University of Torino, Turin, Italy
| | - Gerd Heusch
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Duisburg-Essen, Essen, Germany
| | - Petra Kleinbongard
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Duisburg-Essen, Essen, Germany
| | - Christoph Maack
- Department of Translational Research, Comprehensive Heart Failure Center (CHFC), and Medical Clinic I, University Clinic Würzburg, Würzburg, Germany
| | - Bruno K Podesser
- Ludwig Boltzmann Institute for Cardiovascular Research at the Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Vienna, Austria
| | - Kimon Stamatelopoulos
- Angiology and Endothelial Pathophysiology Unit, Department of Clinical Therapeutics, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantinos Stellos
- Department of Cardiovascular Research, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Gemma Vilahur
- Research Institute, Hospital de La Santa Creu I Sant Pau, IIB-Sant Pau, C/Sant Antoni Mª Claret 167, 08025, Barcelona, Spain
- CiberCV, Institute Carlos III, Madrid, Spain
| | - Fabrizio Montecucco
- Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, L.Go R. Benzi 10, 16132, Genoa, Italy
| | - Luca Liberale
- Department of Internal Medicine, University of Genoa, 6 Viale Benedetto XV, 16132, Genoa, Italy.
- IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, L.Go R. Benzi 10, 16132, Genoa, Italy.
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Sahu S, Castro M, Muldoon JJ, Asija K, Wyman SK, Krishnappa N, de Onate L, Eyquem J, Nguyen DN, Wilson RC. Peptide-enabled ribonucleoprotein delivery for CRISPR engineering (PERC) in primary human immune cells and hematopoietic stem cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.14.603391. [PMID: 39071446 PMCID: PMC11275745 DOI: 10.1101/2024.07.14.603391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Peptide-enabled ribonucleoprotein delivery for CRISPR engineering (PERC) is a new approach for ex vivo genome editing of primary human cells. PERC uses a single amphiphilic peptide reagent to mediate intracellular delivery of the same pre-formed CRISPR ribonucleoprotein enzymes that are broadly used in research and therapeutics, resulting in high-efficiency editing of stimulated immune cells and cultured hematopoietic stem and progenitor cells (HSPCs). PERC facilitates nuclease-mediated gene knockout, precise transgene knock-in, and base editing. PERC involves mixing the CRISPR ribonucleoprotein enzyme with peptide and then incubating the formulation with cultured cells. For efficient transgene knock-in, adeno-associated virus (AAV) bearing homology-directed repair template DNA may be included. In contrast to electroporation, PERC is appealing as it requires no dedicated hardware and has less impact on cell phenotype and viability. Due to the gentle nature of PERC, delivery can be performed multiple times without substantial impact to cell health or phenotype. Here we report methods for improved PERC-mediated editing of T cells as well as novel methods for PERC-mediated editing of HSPCs, including knockout and precise knock-in. Editing efficiencies can surpass 90% using either Cas9 or Cas12a in primary T cells or HSPCs. Because PERC calls for only three readily available reagents - protein, RNA, and peptide - and does not require dedicated hardware for any step, PERC demands no special expertise and is exceptionally straightforward to adopt. The inherent compatibility of PERC with established cell engineering pipelines makes this approach appealing for rapid deployment in research and clinical settings.
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He Y, Johnston APR, Pouton CW. Therapeutic applications of cell engineering using mRNA technology. Trends Biotechnol 2024:S0167-7799(24)00191-4. [PMID: 39153909 DOI: 10.1016/j.tibtech.2024.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 07/16/2024] [Accepted: 07/20/2024] [Indexed: 08/19/2024]
Abstract
Engineering and reprogramming cells has significant therapeutic potential to treat a wide range of diseases, by replacing missing or defective proteins, to provide transcription factors (TFs) to reprogram cell phenotypes, or to provide enzymes such as RNA-guided Cas9 derivatives for CRISPR-based cell engineering. While viral vector-mediated gene transfer has played an important role in this field, the use of mRNA avoids safety concerns associated with the integration of DNA into the host cell genome, making mRNA particularly attractive for in vivo applications. Widespread application of mRNA for cell engineering is limited by its instability in the biological environment and challenges involved in the delivery of mRNA to its target site. In this review, we examine challenges that must be overcome to develop effective therapeutics.
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Affiliation(s)
- Yujia He
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, VIC, Australia
| | - Angus P R Johnston
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, VIC, Australia
| | - Colin W Pouton
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, VIC, Australia.
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48
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Herrador L, Yun S, González-Costello J. [Update in 'wild-type' transthyretin cardiac amyloidosis: Clinical guide for its diagnosis and treatment]. Med Clin (Barc) 2024; 163:e36-e43. [PMID: 38762347 DOI: 10.1016/j.medcli.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 05/20/2024]
Affiliation(s)
- Lorena Herrador
- Unidad de Insuficiencia Cardíaca Avanzada y Trasplante Cardíaco, Servicio de Cardiología, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España; Bio-Heart, grupo de investigación en enfermedades cardiovasculares, Instituto de Investigación Biomédica de Bellvitge, Hospitalet de Llobregat, Barcelona, España
| | - Sergi Yun
- Bio-Heart, grupo de investigación en enfermedades cardiovasculares, Instituto de Investigación Biomédica de Bellvitge, Hospitalet de Llobregat, Barcelona, España; Unidad de Insuficiencia Cardíaca Comunitaria, Servicio de Medicina Interna, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España; Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Instituto CarlosIII, Madrid, España
| | - José González-Costello
- Unidad de Insuficiencia Cardíaca Avanzada y Trasplante Cardíaco, Servicio de Cardiología, Hospital Universitario de Bellvitge, Hospitalet de Llobregat, Barcelona, España; Bio-Heart, grupo de investigación en enfermedades cardiovasculares, Instituto de Investigación Biomédica de Bellvitge, Hospitalet de Llobregat, Barcelona, España; Centro de Investigación Biomédica en Red Enfermedades Cardiovasculares (CIBERCV), Instituto CarlosIII, Madrid, España; Departamento de Ciencias Clínicas, Facultad de Medicina y Ciencias de la Salud, Universidad de Barcelona, Barcelona, España.
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49
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Poddar A, Ahmady F, Prithviraj P, Luwor RB, Shukla R, Polash SA, Li H, Ramakrishna S, Kannourakis G, Jayachandran A. Advances in CRISPR/Cas systems-based cell and gene therapy. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2024; 208:161-183. [PMID: 39266181 DOI: 10.1016/bs.pmbts.2024.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/14/2024]
Abstract
Cell and gene therapy are innovative biomedical strategies aimed at addressing diseases at their genetic origins. CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) systems have become a groundbreaking tool in cell and gene therapy, offering unprecedented precision and versatility in genome editing. This chapter explores the role of CRISPR in gene editing, tracing its historical development and discussing biomolecular formats such as plasmid, RNA, and protein-based approaches. Next, we discuss CRISPR delivery methods, including viral and non-viral vectors, followed by examining the various engineered CRISPR variants for their potential in gene therapy. Finally, we outline emerging clinical applications, highlighting the advancements in CRISPR for breakthrough medical treatments.
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Affiliation(s)
- Arpita Poddar
- Fiona Elsey Cancer Research Institute, VIC, Australia; Federation University, VIC, Australia; RMIT University, VIC, Australia
| | - Farah Ahmady
- Fiona Elsey Cancer Research Institute, VIC, Australia; Federation University, VIC, Australia
| | - Prashanth Prithviraj
- Fiona Elsey Cancer Research Institute, VIC, Australia; Federation University, VIC, Australia
| | - Rodney B Luwor
- Fiona Elsey Cancer Research Institute, VIC, Australia; Federation University, VIC, Australia; The University of Melbourne, Parkville, VIC, Australia; Huagene Institute, Kecheng Science and Technology Park, Pukou, Nanjing, P.R. China
| | | | | | | | | | - George Kannourakis
- Fiona Elsey Cancer Research Institute, VIC, Australia; Federation University, VIC, Australia
| | - Aparna Jayachandran
- Fiona Elsey Cancer Research Institute, VIC, Australia; Federation University, VIC, Australia.
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50
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Lopes LR, Ho CY, Elliott PM. Genetics of hypertrophic cardiomyopathy: established and emerging implications for clinical practice. Eur Heart J 2024; 45:2727-2734. [PMID: 38984491 PMCID: PMC11313585 DOI: 10.1093/eurheartj/ehae421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 12/05/2023] [Accepted: 06/19/2024] [Indexed: 07/11/2024] Open
Abstract
Pathogenic variation in genes encoding proteins of the cardiac sarcomere is responsible for 30%-40% of cases of hypertrophic cardiomyopathy. The main clinical utility of genetic testing is to provide diagnostic confirmation and facilitation of family screening. It also assists in the detection of aetiologies, which require distinct monitoring and treatment approaches. Other clinical applications, including the use of genetic information to inform risk prediction models, have been limited by the challenge of establishing robust genotype-phenotype correlations with actionable consequences, but new data on the interaction between rare and common genetic variation, as well as the emergence of therapies targeting disease-specific pathogenic mechanisms, herald a new era for genetic testing in routine practice.
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Affiliation(s)
- Luis R Lopes
- Barts Heart Centre, St. Bartholomew’s Hospital, West Smithfield, London EC1A 7BE, UK
- Centre for Heart Muscle Disease, Institute of Cardiovascular Science, University College London, 5 University St, London WC1E 6JF, UK
| | - Carolyn Y Ho
- Cardiovascular Division, Brigham and Women’s Hospital, Boston, MA, USA
| | - Perry M Elliott
- Barts Heart Centre, St. Bartholomew’s Hospital, West Smithfield, London EC1A 7BE, UK
- Centre for Heart Muscle Disease, Institute of Cardiovascular Science, University College London, 5 University St, London WC1E 6JF, UK
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