Displaying publications 1 - 20 of 60 in total

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  1. Gupta K, Singh S, Garg KN
    Arch Oral Biol, 2015 Mar;60(3):439-46.
    PMID: 25540850 DOI: 10.1016/j.archoralbio.2014.11.018
    Advances in biotechnology have brought gene therapy to the forefront of medical research. The concept of transferring genes to tissues for clinical applications has been discussed nearly half a century, but the ability to manipulate genetic material via recombinant DNA technology has brought this goal to reality. The feasibility of gene transfer was first demonstrated using tumour viruses. This led to development of viral and nonviral methods for the genetic modification of somatic cells. Applications of gene therapy to dental and oral problems illustrate the potential impact of this technology on dentistry. Preclinical trial results regarding the same have been very promising. In this review we will discuss methods, vectors involved, clinical implication in dentistry and scientific issues associated with gene therapy.
    Matched MeSH terms: Genetic Therapy*
  2. Elbashir H, Fathalla W, Mundada V, Iqbal M, Al Tawari AA, Chandratre S, et al.
    J Neuromuscul Dis, 2022;9(6):787-801.
    PMID: 36245386 DOI: 10.3233/JND-221528
    BACKGROUND: Duchenne muscular dystrophy (DMD) is a severe neuromuscular disorder which leads to progressive muscle degeneration and weakness. Most patients die from cardiac or respiratory failure. Gene transfer therapy offers a promising approach to treating this disorder.

    OBJECTIVE: Given the genetic disease burden, family size, and the high consanguinity rates in the Middle East, our objective is to address current practices and challenges of DMD patient care within two countries in this region, namely the United Arab Emirates and Kuwait, and to outline readiness for gene therapy.

    METHODS: An expert panel meeting was held to discuss the DMD patient journey, disease awareness, current management of DMD, challenges faced and recommendations for improvement. Opportunities and challenges for gene therapy in both countries were also deliberated. A pre-meeting survey was conducted, and the results were used to guide the discussion during the meeting.

    RESULTS: DMD awareness is poor resulting in a delay in referral and diagnosis of patients. Awareness and education initiatives, along with an interconnected referral system could improve early diagnosis. Genetic testing is available in both countries although coverage varies. Corticosteroid therapy is the standard of care however there is often a delay in treatment initiation. Patients with DMD should be diagnosed and managed by a multi-disciplinary team in centers of excellence for neuromuscular disorders. Key success factors to support the introduction of gene therapy include education and training, timely and accessible genetic testing and resolution of reimbursement and cost issues.

    CONCLUSION: There are many challenges facing the management of DMD patients in the United Arab Emirates and Kuwait and most likely other countries within the Middle East. Successful introduction of gene therapy to treat DMD will require careful planning, education, capacity building and prioritization of core initiatives.

    Matched MeSH terms: Genetic Therapy/methods
  3. Lila MA, Siew JS, Zakaria H, Saad SM, Ni LS, Abdullah JM
    Malays J Med Sci, 2004 Jan;11(1):9-23.
    PMID: 22977356 MyJurnal
    Gene therapy is a promising approach towards cancer treatment. The main aim of the therapy is to destroy cancer cells, usually by apoptotic mechanisms, and preserving others. However, its application has been hindered by many factors including poor cellular uptake, non-specific cell targeting and undesirable interferences with other genes or gene products. A variety of strategies exist to improve cellular uptake efficiency of gene-based therapies. This paper highlights advancements in gene therapy research and its application in relation to anti-cancer treatment.
    Matched MeSH terms: Genetic Therapy
  4. Nguyen Thi YV, Ho TT, Caglayan S, Ramasamy TS, Chu DT
    Prog Mol Biol Transl Sci, 2024;203:287-300.
    PMID: 38360004 DOI: 10.1016/bs.pmbts.2023.12.013
    Diabetes is an ongoing global problem as it affects health of more than 537 million people around the world. Diabetes leaves many serious complications that affect patients and can cause death if not detected and treated promptly. Some of the complications of diabetes include impaired vascular system, increased risk of stroke, neurological diseases that cause pain and numbness, diseases related to the retina leading to blindness, and other complications affecting kidneys, heart failure, muscle weakness, muscle atrophy. All complications of diabetes seriously affect the health of patients. Recently, gene therapy has emerged as a viable treatment strategy for various diseases. DNA and RNA are among the target molecules that can change the structure and function of proteins and are effective methods of treating diseases, especially genetically inherited diseases. RNA therapeutics has attracted deep interest as it has been approved for application in the treatment of functional system disorders such as spinal muscular atrophy, and muscular dystrophy. In this review, we cover the types of RNA therapies considered for treatment of diabetes. In particular, we delve into the mechanism of action of RNA therapies for diabetes, and studies involving testing of these RNA therapies. Finally, we have highlighted the limitations of the current understanding in the mechanism of action of RNA therapies.
    Matched MeSH terms: Genetic Therapy/methods
  5. Liau KM, Ooi AG, Mah CH, Yong P, Kee LS, Loo CZ, et al.
    Curr Pharm Biotechnol, 2024;25(12):1500-1522.
    PMID: 37921129 DOI: 10.2174/0113892010258617231020062637
    CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) is a versatile technology that allows precise modification of genes. One of its most promising applications is in cancer treatment. By targeting and editing specific genes involved in cancer development and progression, CRISPR has the potential to become a powerful tool in the fight against cancer. This review aims to assess the recent progress in CRISPR technology for cancer research and to examine the obstacles and potential strategies to address them. The two most commonly used CRISPR systems for gene editing are CRISPR/Cas9 and CRISPR/Cas12a. CRISPR/Cas9 employs different repairing systems, including homologous recombination (HR) and nonhomologous end joining (NHEJ), to introduce precise modifications to the target genes. However, off-target effects and low editing efficiency are some of the main challenges associated with this technology. To overcome these issues, researchers are exploring new delivery methods and developing CRISPR/Cas systems with improved specificity. Moreover, there are ethical concerns surrounding using CRISPR in gene editing, including the potential for unintended consequences and the creation of genetically modified organisms. It is important to address these issues through rigorous testing and strict regulations. Despite these challenges, the potential benefits of CRISPR in cancer therapy cannot be overlooked. By introducing precise modifications to cancer cells, CRISPR could offer a targeted and effective treatment option for patients with different types of cancer. Further investigation and development of CRISPR technology are necessary to overcome the existing challenges and harness its full potential in cancer therapy.
    Matched MeSH terms: Genetic Therapy/methods; Genetic Therapy/trends
  6. Jafarlou M, Baradaran B, Saedi TA, Jafarlou V, Shanehbandi D, Maralani M, et al.
    J Biol Regul Homeost Agents, 2016 Apr-Jun;30(2):315-21.
    PMID: 27358116
    Gene therapy has become a significant issue in science-related news. The principal concept of gene therapy is an experimental technique that uses genes to treat or prevent disease. Although gene therapy was originally conceived as a way to treat life-threatening disorders (inborn defects, cancers) refractory to conventional treatment, it is now considered for many non–life-threatening conditions, such as those adversely impacting a patient’s quality of life. An extensive range of efficacious vectors, delivery techniques, and approaches for developing gene-based interventions for diseases have evolved in the last decade. The lack of suitable treatment has become a rational basis for extending the scope of gene therapy. The aim of this review is to investigate the general methods by which genes are transferred and to give an overview to clinical applications. Maximizing the potential benefits of gene therapy requires efficient and sustained therapeutic gene expression in target cells, low toxicity, and a high safety profile. Gene therapy has made substantial progress albeit much slower than was initially predicted. This review also describes the basic science associated with many gene therapy vectors and the present progress of gene therapy carried out for various surface disorders and diseases. The conclusion is that, with increased pathobiological understanding and biotechnological improvements, gene therapy will become a standard part of clinical practice.
    Matched MeSH terms: Genetic Therapy
  7. Al-Namnam NM, Jayash SN, Hariri F, Rahman ZAA, Alshawsh MA
    Gene Ther, 2021 Nov;28(10-11):620-633.
    PMID: 33619359 DOI: 10.1038/s41434-021-00238-w
    Apert syndrome is a genetic disorder characterised by craniosynostosis and structural discrepancy of the craniofacial region as well as the hands and feet. This condition is closely linked with fibroblast growth factor receptor-2 (FGFR2) gene mutations. Gene therapies are progressively being tested in advanced clinical trials, leading to a rise of its potential clinical indications. In recent years, research has made great progress in the gene therapy of craniosynostosis syndromes and several studies have investigated its influences in preventing/diminishing the complications of Apert syndrome. This article reviewed and exhibited different techniques of gene therapy and their influences in Apert syndrome progression. A systematic search was executed using electronic bibliographic databases including PubMed, EMBASE, ScienceDirect, SciFinder and Web of Science for all studies of gene therapy for Apert syndrome. The primary outcomes measurements vary from protein to gene expressions. According to the findings of included studies, we conclude that the gene therapy using FGF in Apert syndrome was critical in the regulation of suture fusion and patency, occurred via alterations in cellular proliferation. The superior outcome could be brought by biological therapies targeting the FGF/FGFR signalling. More studies in molecular genetics in Apert syndrome are recommended. This study reviews the current literature and provides insights to future possibilities of genetic therapy as intervention in Apert syndrome.
    Matched MeSH terms: Genetic Therapy
  8. Azad MA, Amin L, Sidik NM
    ScientificWorldJournal, 2014;2014:768038.
    PMID: 24757435 DOI: 10.1155/2014/768038
    Papaya (Carica papaya) is severely damaged by the papaya ringspot virus (PRSV). This review focuses on the development of PRSV resistant transgenic papaya through gene technology. The genetic diversity of PRSV depends upon geographical distribution and the influence of PRSV disease management on a sequence of PRSV isolates. The concept of pathogen-derived resistance has been employed for the development of transgenic papaya, using a coat protein-mediated, RNA-silencing mechanism and replicase gene-mediated transformation for effective PRSV disease management. The development of PRSV-resistant papaya via post-transcriptional gene silencing is a promising technology for PRSV disease management. PRSV-resistant transgenic papaya is environmentally safe and has no harmful effects on human health. Recent studies have revealed that the success of adoption of transgenic papaya depends upon the application, it being a commercially viable product, bio-safety regulatory issues, trade regulations, and the wider social acceptance of the technology. This review discusses the genome and the genetic diversity of PRSV, host range determinants, molecular diagnosis, disease management strategies, the development of transgenic papaya, environmental issues, issues in the adoption of transgenic papaya, and future directions for research.
    Matched MeSH terms: Genetic Therapy*
  9. Chowdhury EH
    Expert Opin Drug Deliv, 2011 Mar;8(3):389-401.
    PMID: 21314230 DOI: 10.1517/17425247.2011.554817
    Current treatment of malignant tumors relies predominantly on chemotherapy delivering a single antineoplastic drug or a combination of two or more drugs intravenously. Problems with such treatments can include the killing of healthy cells, adverse side effects and chemoresistance. As cancer basically results from different types of mutation leading to the overexpression or suppression of the signaling cascades responsible for cancer cell survival and proliferation, tailor-made approaches capable of interfering precisely with those pathways are the potential revolutionary tools that could pave the way for highly effective cancer therapy.
    Matched MeSH terms: Genetic Therapy/methods*
  10. Abdullah J, Isa MN
    Stereotact Funct Neurosurg, 1999;73(1-4):19-22.
    PMID: 10853092
    Two hundred primary brain tumours in both adults and children from the year 1990 to 1998 presenting for treatment to the Neurosurgical Division of the Hospital of the University of Sciences Malaysia were studied retrospectively. Volumes of tumours were taken from CT scans with contrast using two formulas and divided into 4 groups: (1) less than 20 cm(3), (2) 20-50 cm(3), (3) 50-100 cm(3) (4) larger than 100 cm(3). The majority of the brain tumours were in the volume range of 50-100 cm(3), and are thus potentially curable with retroviral gene therapy.
    Matched MeSH terms: Genetic Therapy*
  11. Yahya EB, Alqadhi AM
    Life Sci, 2021 Mar 15;269:119087.
    PMID: 33476633 DOI: 10.1016/j.lfs.2021.119087
    Cancer treatment has been always considered one of the most critical and vital themes of clinical issues. Many approaches have been developed, depending on the type and the stage of tumor. Gene therapy has the potential to revolutionize different cancer therapy. With the advent of recent bioinformatics technologies and genetic science, it become possible to identify, diagnose and determine the potential treatment using the technology of gene delivery. Several approaches have been developed and experimented in vitro and vivo for cancer therapy including: naked nucleic acids based therapy, targeting micro RNAs, oncolytic virotherapy, suicide gene based therapy, targeting telomerase, cell mediated gene therapy, and CRISPR/Cas9 based therapy. In this review, we present a straightforward introduction to cancer biology and occurrence, highlighting different viral and non-viral gene delivery systems for gene therapy and critically discussed the current and various strategies for cancer gene therapy.
    Matched MeSH terms: Genetic Therapy*
  12. Pandey M, Ting JSS, Gorain B, Jain N, Mayuren J
    Curr Pharm Des, 2023;29(40):3254-3262.
    PMID: 37438899 DOI: 10.2174/1381612829666230712162540
    The prevalence of vaginal infection is increasing among women, especially at reproductive age. For proper eradication of infection, the effective concentration of a drug is required at the infection site. Therefore, local delivery is recommended to exert a direct therapeutic effect at the site action that causes a reduction in dose and side effects. The main focus of vaginal drug delivery is to enhance retention time and patient compliance. The high recurrence rate of vaginal infection due to the lack of effective treatment strategies opens the door for new therapeutic approaches. To combat these setbacks, intravaginal gene therapies have been investigated. High attention has been gained by vaginal gene therapy, especially for sexually transmitted infection treatment. Despite much research, no product is available in the market, although in vitro and preclinical data support the vaginal route as an effective route for gene administration. The main focus of this review is to discuss the recent advancement in miniaturized polymeric systems for intravaginal gene therapies to treat local infections. An overview of different barriers to vaginal delivery and challenges of vaginal infection treatment are also summarised.
    Matched MeSH terms: Genetic Therapy
  13. Alhaji SY, Ngai SC, Abdullah S
    Biotechnol Genet Eng Rev, 2019 Apr;35(1):1-25.
    PMID: 30514178 DOI: 10.1080/02648725.2018.1551594
    DNA methylation and histone modifications are vital in maintaining genomic stability and modulating cellular functions in mammalian cells. These two epigenetic modifications are the most common gene regulatory systems known to spatially control gene expression. Transgene silencing by these two mechanisms is a major challenge to achieving effective gene therapy for many genetic conditions. The implications of transgene silencing caused by epigenetic modifications have been extensively studied and reported in numerous gene delivery studies. This review highlights instances of transgene silencing by DNA methylation and histone modification with specific focus on the role of these two epigenetic effects on the repression of transgene expression in mammalian cells from integrative and non-integrative based gene delivery systems in the context of gene therapy. It also discusses the prospects of achieving an effective and sustained transgene expression for future gene therapy applications.
    Matched MeSH terms: Genetic Therapy
  14. Shin, Tan Seok, Zeenathul Nazariah Allaudin, Mohd. Azmi Mohd. Lila
    MyJurnal
    Adenovirus vector is the most common used vector in clinical gene therapy. The development of adenovirus from the first generation until the helper-dependent adenovirus vector has greatly reduced toxicity and immunogenicity. The helper-dependent adenovirus can also prolong transgene expression. Tissue- or disease-specific approach has been used to improve the specificity of adenoviral vector for cancer gene therapy. This review summarizes some adenoviral gene therapy and targeting approaches available for human cancer as well as animal cancer.
    Matched MeSH terms: Genetic Therapy
  15. Loh EYX, Ab Ghani A, Ahmad R
    Adv Exp Med Biol, 2023;1430:181-195.
    PMID: 37526848 DOI: 10.1007/978-3-031-34567-8_10
    The National Pharmaceutical Regulatory Agency (NPRA) is the agency responsible for the registration of pharmaceutical, natural, and health supplement products and notification of cosmetic products that are marketed in Malaysia. The implementation of regulatory oversight of the different types of product was in a progressive manner, with the latest addition to be regulated being the cell and gene therapy products (CGTPs), beginning January 1, 2021. CGTP can be classified as low risk (that does not require registration) or high risk (that needs to be registered). Generally, the regulation of high-risk CGTP is similar to other biological products. This chapter describes the chronology of the CGTP framework, classification of CGTP, how CGTPs fit into the current registration pathways and registration procedure, dossier requirements, and what is the current status and future direction of CGTP in Malaysia.
    Matched MeSH terms: Genetic Therapy
  16. Jothy SL, Chen Y, Vijayarathna S, Kanwar JR, Sasidharan S
    Curr Gene Ther, 2015;15(1):15-20.
    PMID: 25478696
    Radiotherapy plays an essential primary role in cancer patients. Regardless of its significant advances in treatment options, tumor recurrence and radio-resistance in cancer cells still occur in a high percentage of patients. Furthermore, the over expression of miRNAs accompanies the development of radio-resistant cancer cells. Consequently, miRNAs might serve as therapeutic targets for the treatment of radio-resistance in cancer cells. The findings of the current research also signify that the use of a natural anti-miRNA substance could inhibit specific miRNAs, and, concurrently, these natural remedies could exhibit radioprotective activity against the healthy cells during radiotherapy. Therefore, in this review, we have reported the association of miRNAs with radio-resistance and the potential uses of natural remedies as green gene therapeutic approaches, as well as radioprotectors against the adverse effects of irradiation on healthy cells during radiotherapy.
    Matched MeSH terms: Genetic Therapy/methods*
  17. Ismail R, Allaudin ZN, Lila MA
    Vaccine, 2012 Sep 7;30(41):5914-20.
    PMID: 22406276 DOI: 10.1016/j.vaccine.2012.02.061
    Gene therapy and vaccines are rapidly developing field in which recombinant nucleic acids are introduced in mammalian cells for enhancement, restoration, initiation or silencing biochemical function. Beside simplicity in manipulation and rapid manufacture process, plasmid DNA-based vaccines have inherent features that make them promising vaccine candidates in a variety of diseases. This present review focuses on the safety concern of the genetic elements of plasmid such as propagation and expression units as well as their host genome for the production of recombinant plasmid DNA. The highlighted issues will be beneficial in characterizing and manufacturing plasmid DNA for save clinical use. Manipulation of regulatory units of plasmid will have impact towards addressing the safety concerns raised in human vaccine applications. The gene revolution with plasmid DNA by alteration of their plasmid and production host genetics will be promising for safe delivery and obtaining efficient outcomes.
    Matched MeSH terms: Genetic Therapy/methods
  18. Maheshwari R, Tekade M, Sharma PA, Tekade RK
    Curr Pharm Des, 2015;21(30):4427-40.
    PMID: 26471319
    Cardiovascular diseases (CVDs), primarily myocardial infarction (MI), atherosclerosis, hypertension and congestive heart failure symbolize the foremost cause of death in almost all parts of the world. Besides the traditional therapeutic approaches for the management of CVDs, newer innovative strategies are also emerging on the horizon. Recently, gene silencing via small interfering RNA (siRNA) is one of the hot topics amongst various strategies involved in the management of CVDs. The siRNA mechanism involves natural catalytic processes to silence pathological genes that are overexpressed in a particular disease. Also the versatility of gene expression by siRNA deciphers a prospective tactic to down-regulate diseases associated gene, protein or receptor existing on a specific disease target. This article reviews the application of siRNA against CVDs with special emphasis on gene targets in combination with delivery systems such as cationic hydrogels, polyplexes, peptides, liposomes and dendrimers.
    Matched MeSH terms: Genetic Therapy/methods*
  19. Kaboli PJ, Rahmat A, Ismail P, Ling KH
    Pharmacol Res, 2015 Jul;97:104-21.
    PMID: 25958353 DOI: 10.1016/j.phrs.2015.04.015
    MicroRNAs (miRNA) are 21-23 nucleotide molecules not translated into proteins that bind and target the 3' untranslated regions of mRNA. These characteristics make them a possible tool for inhibiting protein translation. Different cellular pathways involved in cancer development, such as cellular proliferation, apoptosis, and migration, are regulated by miRNAs. The objective of this review is to discuss various miRNAs involved in breast cancer in detail as well as different therapeutic strategies from the clinic to industry. A comprehensive discussion is provided on various miRNAs involved in breast cancer development, progression, and metastasis as well as the roles, targets, and related therapeutic strategies of different miRNAs associated with breast cancer. miRNAs known to be clinically useful for the diagnosis and prognosis of breast cancer are also discussed. Different strategies and challenges, including nucleic acid-based (miRNA mimics, antagomiRs, and miRNA sponges) and drug-based (drug resistance, drugs/miRNA interaction, nanodelivery, and sensing systems) approaches to suppress specific oncogenes and/or activate target tumor suppressors are discussed. In contrast to other articles written on the same topic, this review focuses on the therapeutic and clinical value of miRNAs as well as their corresponding targets in order to explore how these strategies can overcome breast cancer, which is the second most frequent type of cancer worldwide. This review focuses on promising and validated miRNAs involved in breast cancer. In particular, two miRNAs, miR-21 and miR-34, are discussed as the most promising targets for RNA-based therapy in non-invasive and invasive breast cancer, respectively. Finally, relevant and commercialized therapeutic strategies are highlighted.
    Matched MeSH terms: Genetic Therapy/methods*
  20. Tan SY, Mei Wong JL, Sim YJ, Wong SS, Mohamed Elhassan SA, Tan SH, et al.
    Diabetes Metab Syndr, 2018 10 10;13(1):364-372.
    PMID: 30641727 DOI: 10.1016/j.dsx.2018.10.008
    Type 1 and type 2 diabetes mellitus is a serious and lifelong condition commonly characterised by abnormally elevated blood glucose levels due to a failure in insulin production or a decrease in insulin sensitivity and function. Over the years, prevalence of diabetes has increased globally and it is classified as one of the leading cause of high mortality and morbidity rate. Furthermore, diabetes confers a huge economic burden due to its management costs as well as its complications are skyrocketing. The conventional medications in diabetes treatment focusing on insulin secretion and insulin sensitisation cause unwanted side effects to patients and lead to incompliance as well as treatment failure. Besides insulin and oral hypoglycaemic agents, other treatments such as gene therapy and induced β-cells regeneration have not been widely introduced to manage diabetes. Therefore, this review aims to deliver an overview of the current conventional medications in diabetes, discovery of newer pharmacological drugs and gene therapy as a potential intervention of diabetes in the future.
    Matched MeSH terms: Genetic Therapy*
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