• editor.aipublications@gmail.com
  • Track Your Paper
  • Contact Us
  • ISSN: 2456-8015

International Journal Of Medical, Pharmacy And Drug Research(IJMPD)

GENE Therapy: A Review

Simranjit Kaur , Rajesh Kumar , Ajeet Pal Singh , Amar Pal Singh , Meenakshi Malhotra


International Journal of Medical, Pharmacy and Drug Research(IJMPD), Vol-8,Issue-1, January - March 2024, Pages 26-33 ,

Download | Downloads : 1 | Total View : 51

Article Info: Received: 08 Feb 2024; Received in revised form:15 Mar 2024; Accepted: 22 Mar 2024; Available online: 31 Mar 2024

Share

Gene therapy, a revolutionary approach to treating genetic disorders, holds tremendous promise in offering targeted and potentially curative treatments for a wide range of diseases. This paper provides an overview of the principles, techniques, and recent advancements in gene therapy. It begins with an introduction to the concept of gene therapy, elucidating its underlying mechanisms and various delivery methods, including viral vectors, non-viral vectors, and genome editing tools such as CRISPR-Cas9. The paper then discusses the applications of gene therapy in treating genetic disorders, including but not limited to hemophilia, cystic fibrosis, muscular dystrophy, and certain types of cancer. By correcting or replacing faulty genes, gene therapy has the potential to alleviate symptoms, halt disease progression, and even restore normal cellular function. This therapeutic strategy involves delivering functional genes into target cells to restore normal cellular function. Utilizing viral vectors or non-viral methods, gene therapy can potentially treat a wide range of diseases, including inherited disorders like cystic fibrosis, muscular dystrophy, and hemophilia, as well as certain types of cancer and cardiovascular diseases. Clinical trials have demonstrated both the safety and efficacy of gene therapy in various contexts, although challenges such as immune responses, delivery efficiency, and long-term gene expression persist. Continued research and technological advancements are essential to overcome these hurdles and unlock the full potential of gene therapy as a transformative medical intervention. Furthermore, this paper highlights recent breakthroughs and clinical successes in the field of gene therapy, showcasing notable case studies and trials that demonstrate its efficacy and safety. These advancements underscore the growing momentum and optimism surrounding gene therapy as a viable treatment option for previously incurable conditions. In conclusion, gene therapy represents a paradigm shift in medicine, offering hope for individuals affected by genetic disorders and opening new avenues for personalized and precision medicine. With continued research, collaboration, and investment, gene therapy holds the potential to transform the landscape of healthcare, ultimately improving patient outcomes and quality of life.

Gene Therapy, Genetic Disorders Treatment, Viral Vectors, CRISPR-Cas9, Clinical Trials

[1] Gaudet D, Méthot J, Déry S, et al. Efficacy and long-term safety of alipogene tiparvovec (AAV1- LPLS447X) gene therapy for lipoprotein lipase deficiency: an open-label trial. Gene Ther. 2013;20(4):361-369. doi:10.1038/gt.2012.89
[2] Hacein-Bey-Abina, S., Garrigue, A., Wang, G. P., Soulier, J., Lim, A., Morillon, E., ... & Cavazzana- Calvo, M. (2008). Insertional oncogenesis in 4 patients after retrovirus-mediated gene therapy of SCID- X1. The Journal of clinical investigation, 118(9), 3132-3142.
[3] Mendell JR, Al-Zaidy S, Shell R, et al. Single-Dose Gene-Replacement Therapy for Spinal Muscular Atrophy. N Engl J Med. 2017;377(18):1713-1722. doi:10.1056/NEJMoa1706198
[4] Tebas P, Stein D, Tang WW, et al. Gene Editing of CCR5 in Autologous CD4 T Cells of Persons Infected with HIV. N Engl J Med. 2014;370(10):901-910. doi:10.1056/NEJMoa1300662.
[5] Friedmann T, Roblin R. Gene Therapy for Human Genetic Disease? Science. 1972;175(4025):949-955. doi:10.1126/science.175.4025.949
[6] Cavazzana-Calvo M, Hacein-Bey S, de Saint Basile G, et al. Gene Therapy of Human Severe Combined Immunodeficiency (SCID)-X1 Disease. Science. 2000;288(5466):669-672. doi:10.1126/science.288.5466.669.
[7] National Institutes of Health (NIH). (2021). What is gene therapy? Retrieved from https://ghr.nlm.nih.gov/primer/therapy/genetherapyReferences:
[8] Crystal, R. G. (1995). Transfer of genes to humans: early lessons and obstacles to success. Science, 270(5235), 404-410.
[9] "Gene Therapy: Principles and Challenges" by Christof von Kalle and Cynthia E. Dunbar.
[10] Gaudet D, Méthot J, Déry S, et al. Efficacy and long-term safety of alipogene tiparvovec (AAV1-LPLS447X) gene therapy for lipoprotein lipase deficiency: an open-label trial. Gene Ther. 2013;20(4):361-369. doi:10.1038/gt.2012.89
[11] Hacein-Bey-Abina S, Garrigue A, Wang GP, et al. Insertional oncogenesis in 4 patients after retrovirus-mediated gene therapy of SCID-X1. J Clin Invest. 2008;118(9):3132-3142. doi:10.1172/JCI35700
[12] Tebas P, Stein D, Tang WW, et al. Gene editing of CCR5 in autologous CD4 T cells of persons infected with HIV. N Engl J Med. 2014;370(10):901-910. doi:10.1056/NEJMoa1300662
[13] Finkel RS, Mercuri E, Darras BT, et al. Nusinersen versus Sham Control in Infantile-Onset Spinal Muscular Atrophy. N Engl J Med. 2017;377(18):1723-1732. doi:10.1056/NEJMoa1702752
[14] Maude SL, Laetsch TW, Buechner J, et al. Tisagenlecleucel in Children and Young Adults with B-Cell Lymphoblastic Leukemia. N Engl J Med. 2018;378(5):439-448. doi:10.1056/NEJMoa1709866
[15] National Institutes of Health (NIH). (2021). Genetic Testing. https://ghr.nlm.nih.gov/primer/testing/genetictesting.
[16] Gaj, T., Gersbach, C. A., & Barbas, C. F. (2013). ZFN, TALEN, and CRISPR/Cas-based methods for genome engineering. Trends in Biotechnology, 31(7), 397-405.
[17] Naldini, L. (2015). Gene therapy returns to centre stage. Nature, 526(7573), 351-360.
[18] Hacein-Bey-Abina, S., Von Kalle, C., Schmidt, M., Le Deist, F., Wulffraat, N., McIntyre, E., ... & Fischer, A. (2003). LMO2-associated clonal T cell proliferation in two patients after gene therapy for SCID-X1. Science, 302(5644), 415-419.
[19] Mingozzi, F., & High, K. A. (2011). Therapeutic in vivo gene transfer for genetic disease using AAV: progress and challenges. Nature Reviews Genetics, 12(5), 341-355.
[20] Cao, O., Hoffman, B. E., & Moghimi, B. (2009). Impact of the underlying mutation and the route of vector administration on immune responses to factor IX in gene therapy for hemophilia B. Molecular Therapy, 17(10), 1733-1742.
[21] Ginn, S. L., Amaya, A. K., Alexander, I. E., & Edelstein, M. (2018). Gene therapy clinical trials worldwide to 2017: An update. Journal of Gene Medicine, 20(5), e3015.
[22] Srivastava, A., & Carter, B. J. (2017). AAV infection: protection from cancer. Human Gene Therapy, 28(4), 323-327.
[23] High, K. A., & Roncarolo, M. G. (2019). Gene Therapy. New England Journal of Medicine, 381(5), 455-464. [DOI: 10.1056/NEJMra1706910].
[24] Ribas, A., & Wolchok, J. D. (2018). Cancer immunotherapy using checkpoint blockade. Science, 359(6382), 1350-1355. [DOI: 10.1126/science.aar4060]
[25] Simonato, M., Bennett, J., Boulis, N. M., Castro, M. G., Fink, D. J., Goins, W. F., ... & Vandenberghe, L. H. (2013). Progress in gene therapy for neurological disorders. Nature Reviews Neurology, 9(5), 277-291. [DOI: 10.1038/nrneurol.2013.56]
[26] Kay, M. A., & Walker, B. D. (2001). Engineering cellular resistance to HIV. Nature Biotechnology, 19(3), 196-197. [DOI: 10.1038/85670]
[27] Hammond, H. K., Penny, W. F., Traverse, J. H., Henry, T. D., Watkins, M. W., Yancy, C. W., ... & Bass, T. (2016). Intracoronary gene transfer of adenylyl cyclase 6 in patients with heart failure: a randomized clinical trial. JAMA Cardiology, 1(2), 163-171. [DOI: 10.1001/jamacardio.2016.0008].
[28] Russell, S., Bennett, J., Wellman, J. A., Chung, D. C., Yu, Z. F., Tillman, A., ... & Maguire, A. M. (2017). Efficacy and safety of voretigene neparvovec (AAV2-hRPE65v2) in patients