Mutations in the KARS1 gene lead to a broad spectrum of symptoms in patients. Those affected may experience profound bilateral deafness, hypotonia, microcephaly, vision impairments, leukoencephalopathies, spastic tetraplegia, developmental regression, among others. These mutations can manifest at birth or emerge later in life, with effects that can differ widely between carriers, though most fall within the four symptom categories mentioned above.<\/p>\n
Despite substantial research efforts, the relationship between genotype and phenotype in this condition remains poorly understood. The scientific community, consulted by CURE KARS \u2013 Laia Foundation, has highlighted the urgent need for a natural history study to create a comprehensive scientific knowledge base, with the aim of improving medical and paramedical care and support for patients with this mutation.<\/p>\n
The primary motivation behind this project is driven by the needs of patients and their families, the scientific community\u2019s keen interest, and the pressing need to expand understanding of this ultra-rare genetic disorder.<\/p>\n
A detailed clinical analysis of patient data and medical records from recent years could significantly enhance insights into the disease caused by KARS1 mutations and its genotype-phenotype relationship. This retrospective natural history study, with a prospective phase of six months to a year, involving all patients known to CURE KARS with the KARS1 gene mutation, would provide a crucial foundation for further preclinical research in this area.<\/p>\n
Notably, this would be the first study of its kind and scope for this disease worldwide, adding considerable value to scientific literature.<\/p>\n
Our principal goal is to gain a thorough and complete understanding of this disease. Through the natural history study, we anticipate that the genotype-phenotype relationship will become more defined for both the clinical and scientific communities, enabling advancements in medical and paramedical support.<\/p>\n
We also hope that this project will establish a basis for future preclinical research, supporting essential progress toward potential cures or gene therapies, with the ultimate goal of making such treatments a reality in the years to come.<\/p>\n
Currently, no specific treatments are approved for diseases caused by KARS mutations. Treatment options mainly focus on symptom management, such as medication to control or mitigate spasticity, seizures, or hearing aids for sensorineural deafness and and orthopedic prostheses for developmental delay, and others. Gene therapy that can restore function across multiple affected systems could provide a more comprehensive and potentially curative approach.<\/p>\n
This project aims to explore the therapeutic potential of replacement gene therapy by introducing and expressing a functional copy of the KARS1 gene in patient-derived induced pluripotent stem cells (iPSCs). These iPSCs will be differentiated into neural lineages or other cellular types relevant to the disease, and the impact of KARS1 over-expression on cellular function will be assessed.<\/p>\n
The approach of this research study will include functional assays to evaluate mitochondrial function, protein synthesis, and cell viability, providing critical insights into the disease mechanism and the potential efficacy of gene therapy. Our goal is that the findings from this project could lay the groundwork for developing novel treatments for KARS1-related disorders and similar genetic diseases affecting the CNS.<\/p>\n","protected":false},"excerpt":{"rendered":"
Natural History Study Mutations in the KARS1 gene lead to a broad spectrum of symptoms in patients. Those affected may experience profound bilateral deafness, hypotonia, microcephaly, vision impairments, leukoencephalopathies, spastic tetraplegia, developmental regression, among others. These mutations can manifest at birth or emerge later in life, with effects that can differ widely between carriers, though […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":12,"comment_status":"closed","ping_status":"closed","template":"page-kars.php","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-1511","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.curekars.org\/fr\/wp-json\/wp\/v2\/pages\/1511","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.curekars.org\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.curekars.org\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.curekars.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.curekars.org\/fr\/wp-json\/wp\/v2\/comments?post=1511"}],"version-history":[{"count":5,"href":"https:\/\/www.curekars.org\/fr\/wp-json\/wp\/v2\/pages\/1511\/revisions"}],"predecessor-version":[{"id":1516,"href":"https:\/\/www.curekars.org\/fr\/wp-json\/wp\/v2\/pages\/1511\/revisions\/1516"}],"wp:attachment":[{"href":"https:\/\/www.curekars.org\/fr\/wp-json\/wp\/v2\/media?parent=1511"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}