Global Medical GeneticsPub Date : 2024-10-29eCollection Date: 2024-12-01DOI: 10.1055/s-0044-1791734
Sneha Grace Mathews, R B Devi Krishna, Lavanya M, Nandini K, Sanjana Murali, Preet Agarwal, Elizabeth Rani, Andrea Mary F
{"title":"The Role of the Plasminogen Activator Inhibitor 1 ( <i>PAI1</i> ) in Ovarian Cancer: Mechanisms and Therapeutic Implications.","authors":"Sneha Grace Mathews, R B Devi Krishna, Lavanya M, Nandini K, Sanjana Murali, Preet Agarwal, Elizabeth Rani, Andrea Mary F","doi":"10.1055/s-0044-1791734","DOIUrl":"10.1055/s-0044-1791734","url":null,"abstract":"<p><p>Ovarian cancer (OC) is one among most significantly fatal gynecological cancers, with late-stage detection and an inadequate prognosis. Plasminogen activator inhibitor-1 ( <i>PAI1</i> ) gene anticipates negative outcomes in many different kinds of malignancies. Several research investigations are currently being done to examine the biological role of <i>PAI1</i> in OC and the possible benefits of targeted pharmacotherapies. The <i>PAI1</i> gene has been linked to the emergence and development of cancer in the ovary. <i>PAI1</i> , an inhibitor of serine protease, influences the fibrinolysis and extracellular matrix remodeling, both of which are crucial for tumor expansion and metastatic growth. <i>PAI1</i> levels have been discovered to be subsequently more elevated in malignant ovarian tissues than in usual ovarian tissue, demonstrating a potential connection among <i>PAI1</i> overexpression and OC development. <i>PAI1</i> promotes tumor cell proliferation, movement, and an invasion by influencing the urokinase-plasminogen activators and through interactions with cell surface receptors. In addition, <i>PAI1</i> gene contributes to angiogenesis and apoptotic cell death, which contribute to the more hostile phenotypes of OC. The prognostic and therapeutic consequences of focusing on <i>PAI1</i> in OC are explored, demonstrating <i>PAI1</i> 's potential to be a biomarker and emphasizing for novel treatment approaches. The <i>PAI1</i> gene possesses several functions in OC, affecting tumor development, an invasion, and metastatic growth. Comprehending the complicated interactions and mechanisms that regulate <i>PAI1</i> in OC may lead to more efficient evaluation and treatment strategies and ultimately enhance patient outcomes.</p>","PeriodicalId":40142,"journal":{"name":"Global Medical Genetics","volume":"11 4","pages":"358-365"},"PeriodicalIF":1.5,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11521755/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142711253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Global Medical GeneticsPub Date : 2024-10-18eCollection Date: 2024-12-01DOI: 10.1055/s-0044-1791803
Ahsan Ali, Md Yakeen Rahman, Danish Sheikh
{"title":"The Role of CRISPR/Cas9 in Revolutionizing Duchenne's Muscular Dystrophy Treatment: Opportunities and Obstacles.","authors":"Ahsan Ali, Md Yakeen Rahman, Danish Sheikh","doi":"10.1055/s-0044-1791803","DOIUrl":"10.1055/s-0044-1791803","url":null,"abstract":"<p><p>Duchenne's muscular dystrophy (DMD) is a severe X-linked disorder characterized by progressive muscle degeneration, leading to loss of ambulation, respiratory failure, and premature death. It affects approximately 1 in 3,500 live male births and is caused by mutations in the dystrophin gene, which impairs muscle fiber stability. Current treatments are limited to managing symptoms and slowing disease progression, with no curative therapies available. The advent of CRISPR/Cas9 gene-editing technology has introduced a promising approach for directly correcting the genetic mutations responsible for DMD. This review explores the potential of CRISPR/Cas9 as a transformative therapy for DMD, highlighting its successes in preclinical models, the challenges associated with its delivery, and the obstacles to its clinical application. While preclinical studies demonstrate the efficacy of CRISPR/Cas9 in restoring dystrophin expression and improving muscle function, significant hurdles remain, including optimizing delivery methods and ensuring long-term safety.</p>","PeriodicalId":40142,"journal":{"name":"Global Medical Genetics","volume":"11 4","pages":"349-357"},"PeriodicalIF":1.5,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11489040/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142711274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Global Medical GeneticsPub Date : 2024-10-16eCollection Date: 2024-12-01DOI: 10.1055/s-0044-1791804
Alayna N Zalesny, Sarah Gunter, Charles A Williams
{"title":"Case Report: Alpha6 Integrin Disorder Presenting in Childhood with Nail Dysplasia and Onycholysis But No History of Fragile or Bullous Skin Changes.","authors":"Alayna N Zalesny, Sarah Gunter, Charles A Williams","doi":"10.1055/s-0044-1791804","DOIUrl":"10.1055/s-0044-1791804","url":null,"abstract":"<p><p>We report a 7-year-old girl born with pyloric atresia but without congenital epidermolysis bullosa or skin fragility. Nail dysplasia developed at age 8 months and throughout childhood she suffered from onycholysis and mild nail hypertrophy. Whole-exome sequencing demonstrated biallelic mutations in alpha6 integrin (ITGA6): p. Q139* and R153W. ITGA6 normally forms a protein heterodimer with beta4 integrin (ITGB4), and this dimer participates in anchoring the basal skin cells to the extracellular matrix. Biallelic mutations in each gene are well known to cause epidermolysis bullosa and pyloric atresia. However, this child had ostensibly normal skin without any evidence of skin fragility. In a literature search, we identified 11 cases involving ITGA6 mutations, and all had epidermolysis skin changes. Thus, this case adds to the reported phenotype of ITGA6 disease since it is the first to show absence of an epidermolysis bullosa phenotype in the setting of pyloric atresia and nail dysplasia.</p>","PeriodicalId":40142,"journal":{"name":"Global Medical Genetics","volume":"11 4","pages":"344-348"},"PeriodicalIF":1.5,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11485621/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142711267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Global Medical GeneticsPub Date : 2024-09-19eCollection Date: 2024-12-01DOI: 10.1055/s-0044-1791198
Wei Zhang, Hui Xu, Ning Tang, Shuang Han, Hongyan Shu
{"title":"Genomic Landscape Features of Minimally Invasive Adenocarcinoma and Invasive Lung Adenocarcinoma.","authors":"Wei Zhang, Hui Xu, Ning Tang, Shuang Han, Hongyan Shu","doi":"10.1055/s-0044-1791198","DOIUrl":"10.1055/s-0044-1791198","url":null,"abstract":"<p><p><b>Background</b> The widespread implementation of computed tomography has significantly increased the detection of small pulmonary nodules, including atypical adenomatous hyperplasia, minimally invasive adenocarcinoma (MIA), and invasive adenocarcinoma (IAC). Few studies have focused on the genomic differences between MIA and IAC. <b>Methods</b> We retrospectively analyzed patients with lung adenocarcinoma (LUAD) who underwent surgery from January 2020 to December 2023. Patients were categorized into MIA and IAC groups. The mutation status of common driver genes was assessed using next-generation sequencing. <b>Results</b> A total of 422 LUAD patients were included in the study, comprising 119 MIA cases and 303 IAC cases. MIA patients were younger and predominantly female compared with IAC patients. EGFR mutations were detected in 251 patients (59.5%), with the frequency of EGFR mutations increasing from 37.0% in MIA to 68.3% in IAC ( <i>p</i> < 0.001). TP53 mutations were found in 108 patients (25.6%), with 7 patients (5.9%) in MIA and 101 patients (33.3%) in IAC ( <i>p</i> < 0.001). ERBB2 mutations were identified in 23 MIA patients (19.3%) and 20 IAC patients (6.6%) ( <i>p</i> < 0.001). Additionally, CDKN2A mutations were detected in 23 IAC patients (7.6%), while no mutations in this gene were found in the MIA group. Moreover, ALK and RET gene fusions were identified in 11 patients, respectively. <b>Conclusion</b> ERBB2 mutations and RET fusions are early genomic events in LUAD, while TP53 and CDKN2A mutations and ALK fusions occur later. Genomic intratumor heterogeneity likely arises early, before invasive characteristics develop.</p>","PeriodicalId":40142,"journal":{"name":"Global Medical Genetics","volume":"11 4","pages":"312-318"},"PeriodicalIF":1.5,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11412754/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142711270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Global Medical GeneticsPub Date : 2024-09-16eCollection Date: 2024-12-01DOI: 10.1055/s-0044-1790558
Dae Hwan Oh
{"title":"Mechanism of Genome Editing Tools and Their Application on Genetic Inheritance Disorders.","authors":"Dae Hwan Oh","doi":"10.1055/s-0044-1790558","DOIUrl":"10.1055/s-0044-1790558","url":null,"abstract":"<p><p>In the fields of medicine and bioscience, gene editing is increasingly recognized as a promising therapeutic approach for treating pathogenic variants in humans and other living organisms. With advancements in technology and knowledge, it is now understood that most genetic defects are caused by single-base pair variants. The ability to substitute genes using genome editing tools enables scientists and doctors to cure genetic diseases and disorders. Starting with CRISPR (clustered regularly interspaced short palindromic repeats)/Cas, the technology has evolved to become more efficient and safer, leading to the development of base and prime editors. Furthermore, various approaches are used to treat genetic disorders such as hemophilia, cystic fibrosis, and Duchenne muscular dystrophy. As previously mentioned, most genetic defects leading to specific diseases are caused by single-base pair variants, which can occur at many locations in corresponding gene, potentially causing the same disease. This means that, even when using the same genome editing tool, results in terms of editing efficiency or treatment effectiveness may differ. Therefore, different approaches may need to be applied to different types of diseases. Prevalently, due to the safety of adeno-associated virus (AAV) vectors in gene therapy, most clinical trials of gene therapy are based on AAV delivery methods. However, despite their safety and nonintegration into the host genome, their limitations, such as confined capacity, dosage-dependent viral toxicity, and immunogenicity, necessitate the development of new approaches to enhance treatment effects. This review provides the structure and function of each CRISPR-based gene editing tool and focuses on introducing new approaches in gene therapy associated with improving treatment efficiency.</p>","PeriodicalId":40142,"journal":{"name":"Global Medical Genetics","volume":"11 4","pages":"319-329"},"PeriodicalIF":1.5,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11405120/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142711272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Global Medical GeneticsPub Date : 2024-09-09eCollection Date: 2024-12-01DOI: 10.1055/s-0044-1790283
Eiman Meer
{"title":"Role of Noncoding RNAs in Modulating Microglial Phenotype.","authors":"Eiman Meer","doi":"10.1055/s-0044-1790283","DOIUrl":"10.1055/s-0044-1790283","url":null,"abstract":"<p><p>Microglia are immunocompetent cells that are present in the retina and central nervous system, and are involved in the development maintenance and immune functions in these systems. Developing from yolk sac-primitive macrophages, they proliferate in the local tissues during the embryonic period without resorting to the production from the hematopoietic stem cells, and are critical in sustaining homeostasis and performing in disease and injury; they have morphological characteristics and distinct phenotypes according to the microenvironment. Microglia are also present in close association with resident cells in the retina where they engage in synapse formation, support normal functions, as well as immune defense. They are involved in the development of numerous neurodegenerative and ophthalmic diseases and act as diversity shields and triggers. Noncoding ribonucleic acids (ncRNAs) refer to RNA molecules synthesized from the mammalian genome, and these do not have protein-coding capacity. These ncRNAs play a role in the regulation of gene expression patterns. ncRNAs have only been recently identified as vastly significant molecules that are involved in the posttranscriptional regulation. Microglia are crucial for brain health and functions and current studies have focused on the effects caused by ncRNA on microglial types. Thus, the aim of the review was to provide an overview of the current knowledge about the regulation of microglial phenotypes by ncRNAs.</p>","PeriodicalId":40142,"journal":{"name":"Global Medical Genetics","volume":"11 4","pages":"304-311"},"PeriodicalIF":1.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11383642/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142297928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Phenotypic Heterogeneity in ORAI-1-Associated Congenital Myopathy.","authors":"Dipti Baskar, Seena Vengalil, Kiran Polavarapu, Veeramani Preethish-Kumar, Gautham Arunachal, Ramya Sukrutha, Mainak Bardhan, Akshata Huddar, Gopikrishnan Unnikrishnan, Girish Baburao Kulkarni, Yasha T Chickabasaviah, Rashmi Santhosh Kumar, Atchayaram Nalini, Saraswati Nashi","doi":"10.1055/s-0044-1790245","DOIUrl":"10.1055/s-0044-1790245","url":null,"abstract":"<p><p><b>Introduction</b> ORAI-1 is a plasma membrane calcium release-activated calcium channel that plays a crucial role in the excitation-contraction of skeletal muscles. Loss-of-function mutations of <i>ORAI-1</i> cause severe combined immunodeficiency, nonprogressive muscle hypotonia, and anhidrotic ectodermal dysplasia. Autosomal dominant gain-of-function mutation causes Stormorken's syndrome, which includes tubular aggregate myopathy along with bleeding diathesis. <b>Methods</b> This is a description of a genetically confirmed case of ORAI-1-associated myopathy with clinical, histopathological, and imaging characteristics and a detailed literature review. <b>Results</b> We report an 18-year-old woman who presented with 2-and-a-half year history of slowly progressive proximal lower limb weakness and ophthalmoparesis. Her serum creatine kinase levels were normal. Magnetic resonance imaging of the muscle showed predominant fatty infiltration of the glutei and quadriceps femoris. Histopathological analysis of muscle biopsy was suggestive of congenital fiber-type disproportion (CFTD). Clinical exome sequencing showed novel homozygous nonsense pathogenic variant NC_000012.12 (NM_032790.3): c.205G > T (p.Glu69Ter) in <i>ORAI-1</i> gene. <b>Conclusion</b> This report expands the phenotypic spectrum of ORAI-1-related myopathy to include congenital myopathy-CFTD with ophthalmoparesis, a novel manifestation.</p>","PeriodicalId":40142,"journal":{"name":"Global Medical Genetics","volume":"11 4","pages":"297-303"},"PeriodicalIF":1.5,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11377103/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142141328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Potential Mechanism and Perspectives of Mesenchymal Stem Cell Therapy for Ischemic Stroke: A Review.","authors":"Pengcheng Zhu, Hongtu Tan, Haobo Gao, Jiabin Wang, Yangyang Liu, Dongyi Yang, Tao Wu","doi":"10.1055/s-0044-1790231","DOIUrl":"10.1055/s-0044-1790231","url":null,"abstract":"<p><p>Mesenchymal stem cells (MSCs), as a stem cell type with multiple differentiation potentials and immune regulatory abilities, have shown broad prospects in the treatment of ischemic stroke in recent years. The main characteristics of MSCs include their self-renewal ability, differentiation potential for different types of cells, and the ability to secrete various bioactive factors such as cytokines, chemokines, and growth factors, which play a key role in tissue repair and regeneration. In the treatment of ischemic stroke, MSCs exert therapeutic effects through various mechanisms, including promoting vascular regeneration of damaged brain tissue, reducing inflammatory responses, and protecting neurons from damage caused by apoptosis. Research have shown that MSCs can promote the repair of ischemic areas by releasing neurotrophic factors and angiogenic factors, while inhibiting immune responses triggered by ischemia, thereby improving neurological function. With the in-depth study of its biological mechanism, MSCs have gradually shown good safety and effectiveness in clinical applications. Therefore, fully exploring and utilizing the potential of MSCs in the treatment of ischemic stroke may provide new ideas and solutions for future neural repair and regenerative medicine.</p>","PeriodicalId":40142,"journal":{"name":"Global Medical Genetics","volume":"11 4","pages":"278-284"},"PeriodicalIF":1.5,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11368559/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142120806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Human Viral Oncoproteins and Ubiquitin-Proteasome System.","authors":"Zahra Rafiei Atani, Sareh Sadat Hosseini, Hossein Goudarzi, Ebrahim Faghihloo","doi":"10.1055/s-0044-1790210","DOIUrl":"10.1055/s-0044-1790210","url":null,"abstract":"<p><p>Some human cancers worldwide may be related to human tumor viruses. Knowing, controlling, and managing the viruses that cause cancers remain a problem. Also, tumor viruses use ubiquitin-proteasome system (UPS) that can alter host cellular processes through UPS. Human tumor viruses cause persistent infections, due to their ability to infect their host cells without killing them. Tumor viruses such as Epstein-Barr virus, hepatitis C virus, hepatitis B virus, human papillomaviruses, human T cell leukemia virus, Kaposi's sarcoma-associated herpesvirus, and Merkel cell polyomavirus are associated with human malignancies. They interfere with the regulation of cell cycle and control of apoptosis, which are important for cellular functions. These viral oncoproteins bind directly or indirectly to the components of UPS, modifying cellular pathways and suppressor proteins like p53 and pRb. They can also cause progression of malignancy. In this review, we focused on how viral oncoproteins bind to the components of the UPS and how these interactions induce the degradation of cellular proteins for their survival.</p>","PeriodicalId":40142,"journal":{"name":"Global Medical Genetics","volume":"11 4","pages":"285-296"},"PeriodicalIF":1.5,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11368560/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142120805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}