scholarly journals Hutchinson-Gilford Progeria Syndrome—Current Status and Prospects for Gene Therapy Treatment

Cells ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 88 ◽  
Author(s):  
Katarzyna Piekarowicz ◽  
Magdalena Machowska ◽  
Volha Dzianisava ◽  
Ryszard Rzepecki
Keyword(s):  
Gene Therapy ◽  
Molecular Mechanisms ◽  
Current Knowledge ◽  
Genetic Diseases ◽  
Subcutaneous Fat ◽  
Current Status ◽  
Single Mutation ◽  
Lmna Gene ◽  
Progeria Syndrome ◽  
Hutchinson Gilford Progeria Syndrome

Hutchinson-Gilford progeria syndrome (HGPS) is one of the most severe disorders among laminopathies—a heterogeneous group of genetic diseases with a molecular background based on mutations in the LMNA gene and genes coding for interacting proteins. HGPS is characterized by the presence of aging-associated symptoms, including lack of subcutaneous fat, alopecia, swollen veins, growth retardation, age spots, joint contractures, osteoporosis, cardiovascular pathology, and death due to heart attacks and strokes in childhood. LMNA codes for two major, alternatively spliced transcripts, give rise to lamin A and lamin C proteins. Mutations in the LMNA gene alone, depending on the nature and location, may result in the expression of abnormal protein or loss of protein expression and cause at least 11 disease phenotypes, differing in severity and affected tissue. LMNA gene-related HGPS is caused by a single mutation in the LMNA gene in exon 11. The mutation c.1824C > T results in activation of the cryptic donor splice site, which leads to the synthesis of progerin protein lacking 50 amino acids. The accumulation of progerin is the reason for appearance of the phenotype. In this review, we discuss current knowledge on the molecular mechanisms underlying the development of HGPS and provide a critical analysis of current research trends in this field. We also discuss the mouse models available so far, the current status of treatment of the disease, and future prospects for the development of efficient therapies, including gene therapy for HGPS.

Hutchinson Gilford Progeria Syndrome with Ocular Manifestation

2021 ◽  
Author(s):  
Meenakshi Wadhwani
Keyword(s):  
Rare Case ◽  
Autosomal Dominant ◽  
Case Series ◽  
Ocular Manifestation ◽  
Lmna Gene ◽  
Dominant Mutation ◽  
Progeria Syndrome ◽  
Hutchinson Gilford Progeria Syndrome

Hutchinson Gilford progeria Syndrome (HPGS) was first described by Jonathan Hutchinson Gilford in 1897 [1]. It is characterized by characteristic facies also described as plucked bird appearance. These are reported to occur due to denovo autosomal dominant mutation in Laminin A(LMNA) gene present on 1q21.1-1q 21.3 and are rarely inherited [2]. This is to report a rare case series of two children presenting with Hutchinson Gilford progeria with ocular manifestation.

Emerging candidate treatment strategies for Hutchinson-Gilford progeria syndrome

2017 ◽  
Vol 45 (6) ◽  
pp. 1279-1293 ◽  
Author(s):  
Charlotte Strandgren ◽  
Gwladys Revêchon ◽  
Agustín Sola Carvajal ◽  
Maria Eriksson
Keyword(s):  
De Novo ◽  
Disease Incidence ◽  
Treatment Strategies ◽  
Premature Aging ◽  
Lamin A ◽  
Lmna Gene ◽  
Progeria Syndrome ◽  
Hutchinson Gilford Progeria Syndrome

Hutchinson-Gilford progeria syndrome (HGPS, progeria) is an extremely rare premature aging disorder affecting children, with a disease incidence of ∼1 in 18 million individuals. HGPS is usually caused by a de novo point mutation in exon 11 of the LMNA gene (c.1824C>T, p.G608G), resulting in the increased usage of a cryptic splice site and production of a truncated unprocessed lamin A protein named progerin. Since the genetic cause for HGPS was published in 2003, numerous potential treatment options have rapidly emerged. Strategies to interfere with the post-translational processing of lamin A, to enhance progerin clearance, or directly target the HGPS mutation to reduce the progerin-producing alternative splicing of the LMNA gene have been developed. Here, we give an up-to-date resume of the contributions made by our and other research groups to the growing list of different candidate treatment strategies that have been tested, both in vitro, in vivo in mouse models for HGPS and in clinical trials in HGPS patients.

scholarly journals RISK FACTORS, PREVALENCE AND DIAGNOSIS OF HUTCHISON GILFORD SYNDROME WITH SPECIAL REFERENCE TO CASE REPORTS

2017 ◽  
Vol 9 (5) ◽  
pp. 1
Author(s):  
Bhawana Sharma ◽  
Priyanka Sharma ◽  
S. C. Joshi
Keyword(s):  
Splice Site ◽  
De Novo ◽  
Case Reports ◽  
Genetic Disorder ◽  
Subcutaneous Fat ◽  
Point Mutations ◽  
Lamin A ◽  
Laboratory Findings ◽  
Progeria Syndrome ◽  
Hutchinson Gilford Progeria Syndrome

Progeria also known Hutchinson–Gilford progeria syndrome (HGPS), is an extremely rare genetic disorder. The prevalence of HGPS is 1 in 4-8 million newborns. Progeria causes premature, rapid aging shortly after birth present within the first year of life. Recently, de novo point mutations in the Lmna gene at position 1824 of the coding sequence have been found in persons with HGPS. Lmna encodes lamin A and C, the A-type lamins, which are an important structural component of the nuclear envelope and play a role in protein processing. The most common HGPS mutation is located at codon 608 (G608G). This mutation responsible for creating a cryptic splice site within exon 11, which deletes a proteolytic cleavage site within the expressed mutant lamin A. In Progeria, gene mutation results in the deletion of a Zmpste24/FACE1 splice site in prelamin A, preventing end terminal cleavage. The result of this point mutation can be observed by the main clinical and radiological features include alopecia, thin skin hypoplasia of nails, loss of subcutaneous fat, and osteolysis. The common symptoms of HGPS is a loss of eyebrows and eyelashes which can observed in early childhood and due to receding hairline and blading can also observed. Generally, this patient has facial character include microganthia (small jaw), craniofacial disproportion, prominent eyes, scalp veins and alopecia (loss of hair), restricted joint mobility and severe premature atherosclerosis. Laboratory findings are unremarkable, with the exception of an increased urinary excretion of hyaluronic acid. There is presently no effective therapy is available for Hutchinson-Gilford progeria syndrome (HGPS) but, it is essential to monitor carefully cardiovascular and cerebrovascular disease So, Treatment usually includes low dose aspirin which helps prevent the atherothrombotic events, stroke and heart attacks by hindering platelet aggregation

scholarly journals Central auditory deficits associated with genetic forms of peripheral deafness

2021 ◽  
Author(s):  
Nicolas Michalski ◽  
Christine Petit
Keyword(s):  
Gene Therapy ◽  
Mouse Models ◽  
Molecular Mechanisms ◽  
Current Knowledge ◽  
Research Field ◽  
Hearing Disorders ◽  
Causal Genes ◽  
Expected Benefits ◽  
Underlying Mechanisms ◽  
Near Future

AbstractSince the 1990s, the study of inherited hearing disorders, mostly those detected at birth, in the prelingual period or in young adults, has led to the identification of their causal genes. The genes responsible for more than 140 isolated (non-syndromic) and about 400 syndromic forms of deafness have already been discovered. Studies of mouse models of these monogenic forms of deafness have provided considerable insight into the molecular mechanisms of hearing, particularly those involved in the development and/or physiology of the auditory sensory organ, the cochlea. In parallel, studies of these models have also made it possible to decipher the pathophysiological mechanisms underlying hearing impairment. This has led a number of laboratories to investigate the potential of gene therapy for curing these forms of deafness. Proof-of-concept has now been obtained for the treatment of several forms of deafness in mouse models, paving the way for clinical trials of cochlear gene therapy in patients in the near future. Nevertheless, peripheral deafness may also be associated with central auditory dysfunctions and may extend well beyond the auditory system itself, as a consequence of alterations to the encoded sensory inputs or involvement of the causal deafness genes in the development and/or functioning of central auditory circuits. Investigating the diversity, causes and underlying mechanisms of these central dysfunctions, the ways in which they could impede the expected benefits of hearing restoration by peripheral gene therapy, and determining how these problems could be remedied is becoming a research field in its own right. Here, we provide an overview of the current knowledge about the central deficits associated with genetic forms of deafness.

scholarly journals Premature Vascular Aging with Features of Plaque Vulnerability in an Atheroprone Mouse Model of Hutchinson–Gilford Progeria Syndrome with Ldlr Deficiency

Cells ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 2252
Author(s):  
Rosa M. Nevado ◽  
Magda R. Hamczyk ◽  
Pilar Gonzalo ◽  
María Jesús Andrés-Manzano ◽  
Vicente Andrés
Keyword(s):  
Smooth Muscle ◽  
Mouse Model ◽  
Smooth Muscle Cell ◽  
Muscle Cell ◽  
Genetic Diseases ◽  
Nuclear Lamina ◽  
Reduced Body ◽  
Unstable Plaques ◽  
Progeria Syndrome ◽  
Hutchinson Gilford Progeria Syndrome

Hutchinson–Gilford progeria syndrome (HGPS) is among the most devastating of the laminopathies, rare genetic diseases caused by mutations in genes encoding nuclear lamina proteins. HGPS patients age prematurely and die in adolescence, typically of atherosclerosis-associated complications. The mechanisms of HGPS-related atherosclerosis are not fully understood due to the scarcity of patient-derived samples and the availability of only one atheroprone mouse model of the disease. Here, we generated a new atherosusceptible model of HGPS by crossing progeroid LmnaG609G/G609G mice, which carry a disease-causing mutation in the Lmna gene, with Ldlr−/− mice, a commonly used preclinical atherosclerosis model. Ldlr−/−LmnaG609G/G609G mice aged prematurely and had reduced body weight and survival. Compared with control mice, Ldlr−/−LmnaG609G/G609G mouse aortas showed a higher atherosclerosis burden and structural abnormalities typical of HGPS patients, including vascular smooth muscle cell depletion in the media, adventitial thickening, and elastin structure alterations. Atheromas of Ldlr−/−LmnaG609G/G609G mice had features of unstable plaques, including the presence of erythrocytes and iron deposits and reduced smooth muscle cell and collagen content. Ldlr−/−LmnaG609G/G609G mice faithfully recapitulate vascular features found in patients and thus provide a new tool for studying the mechanisms of HGPS-related atherosclerosis and for testing therapies.

scholarly journals Molecular and Cellular Mechanisms Driving Cardiovascular Disease in Hutchinson-Gilford Progeria Syndrome: Lessons Learned from Animal Models

Cells ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1157
Author(s):  
Ignacio Benedicto ◽  
Beatriz Dorado ◽  
Vicente Andrés
Keyword(s):  
Cardiovascular Disease ◽  
Animal Models ◽  
Current Knowledge ◽  
Life Quality ◽  
Cell Loss ◽  
Cell Types ◽  
Lessons Learned ◽  
Cellular Mechanisms ◽  
Progeria Syndrome ◽  
Hutchinson Gilford Progeria Syndrome

Hutchinson-Gilford progeria syndrome (HGPS) is a rare genetic disease that recapitulates many symptoms of physiological aging and precipitates death. Patients develop severe vascular alterations, mainly massive vascular smooth muscle cell loss, vessel stiffening, calcification, fibrosis, and generalized atherosclerosis, as well as electrical, structural, and functional anomalies in the heart. As a result, most HGPS patients die of myocardial infarction, heart failure, or stroke typically during the first or second decade of life. No cure exists for HGPS, and therefore it is of the utmost importance to define the mechanisms that control disease progression in order to develop new treatments to improve the life quality of patients and extend their lifespan. Since the discovery of the HGPS-causing mutation, several animal models have been generated to study multiple aspects of the syndrome and to analyze the contribution of different cell types to the acquisition of the HGPS-associated cardiovascular phenotype. This review discusses current knowledge about cardiovascular features in HGPS patients and animal models and the molecular and cellular mechanisms through which progerin causes cardiovascular disease.

scholarly journals Candidates for Intra-Articular Administration Therapeutics and Therapies of Osteoarthritis

2021 ◽  
Vol 22 (7) ◽  
pp. 3594
Author(s):  
Eriko Toyoda ◽  
Miki Maehara ◽  
Masahiko Watanabe ◽  
Masato Sato
Keyword(s):  
Gene Therapy ◽  
Molecular Mechanisms ◽  
Early Stage ◽  
Point Of Care ◽  
Protein Therapeutics ◽  
Current Status ◽  
Joint Deformation ◽  
And Control ◽  
Development Methods

Osteoarthritis (OA) of the knee is a disease that significantly decreases the quality of life due to joint deformation and pain caused by degeneration of articular cartilage. Since the degeneration of cartilage is irreversible, intervention from an early stage and control throughout life is important for OA treatment. For the treatment of early OA, the development of a disease-modifying osteoarthritis drug (DMOAD) for intra-articular (IA) injection, which is attracting attention as a point-of-care therapy, is desired. In recent years, the molecular mechanisms involved in OA progression have been clarified while new types of drug development methods based on gene sequences have been established. In addition to conventional chemical compounds and protein therapeutics, the development of DMOAD from the new modalities such as gene therapy and oligonucleotide therapeutics is accelerating. In this review, we have summarized the current status and challenges of DMOAD for IA injection, especially for protein therapeutics, gene therapy, and oligonucleotide therapeutics.

scholarly journals Abberent expression analysis of LMNA gene in hutchinson-gilford progeria syndrome

2012 ◽  
Vol 8 (5) ◽  
pp. 221-224
Author(s):  
Afifa Navid ◽  
Mohammad Haroon Khan ◽  
Hamid Rashid
Keyword(s):  
Expression Analysis ◽  
Lmna Gene ◽  
Progeria Syndrome ◽  
Hutchinson Gilford Progeria Syndrome

scholarly journals GENE THERAPY FOR OBSTETRIC CONDITIONS

2014 ◽  
Vol 25 (3-4) ◽  
pp. 147-177
Author(s):  
REBECCA N. SPENCER ◽  
DAVID J. CARR ◽  
ANNA L. DAVID
Keyword(s):  
Gene Therapy ◽  
Clinical Trials ◽  
Lipoprotein Lipase ◽  
Molecular Mechanisms ◽  
Viral Vector ◽  
Genetic Disorders ◽  
Genetic Diseases ◽  
Nasopharyngeal Cancer ◽  
New Paradigm ◽  
Gene Therapies

The first clinical trials of gene therapy in the 1990s offered the promise of a new paradigm for the treatment of genetic diseases. Over the decades that followed the challenges and setbacks which gene therapy faced often overshadowed any successes. Despite this, recent years have seen cause for renewed optimism. In 2012 Glybera™, an adeno-associated viral vector expressing lipoprotein lipase, became the first gene therapy product to receive marketing authorisation in Europe, with a licence to treat familial lipoprotein lipase deficiency. This followed the earlier licensing in China of two gene therapies: Gendicine™ for head and neck squamous cell carcinoma and Oncorine™ for late-stage nasopharyngeal cancer. By this stage over 1800 clinical trials had been, or were being, conducted worldwide, and the therapeutic targets had expanded far beyond purely genetic disorders. So far no trials of gene therapy have been carried out in pregnancy, but an increasing understanding of the molecular mechanisms underlying obstetric diseases means that it is likely to have a role to play in the future. This review will discuss how gene therapy works, its potential application in obstetric conditions and the risks and limitations associated with its use in this setting. It will also address the ethical and regulatory issues that will be faced by any potential clinical trial of gene therapy during pregnancy.

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