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GM2 Gangliosidoses: Clinical Features, Pathophysiological Aspects, and Current Therapies.

Abstract：

:GM2 gangliosidoses are a group of pathologies characterized by GM2 ganglioside accumulation into the lysosome due to mutations on the genes encoding for the β-hexosaminidases subunits or the GM2 activator protein. Three GM2 gangliosidoses have been described: Tay-Sachs disease, Sandhoff disease, and the AB variant. Central nervous system dysfunction is the main characteristic of GM2 gangliosidoses patients that include neurodevelopment alterations, neuroinflammation, and neuronal apoptosis. Currently, there is not approved therapy for GM2 gangliosidoses, but different therapeutic strategies have been studied including hematopoietic stem cell transplantation, enzyme replacement therapy, substrate reduction therapy, pharmacological chaperones, and gene therapy. The blood-brain barrier represents a challenge for the development of therapeutic agents for these disorders. In this sense, alternative routes of administration (e.g., intrathecal or intracerebroventricular) have been evaluated, as well as the design of fusion peptides that allow the protein transport from the brain capillaries to the central nervous system. In this review, we outline the current knowledge about clinical and physiopathological findings of GM2 gangliosidoses, as well as the ongoing proposals to overcome some limitations of the traditional alternatives by using novel strategies such as molecular Trojan horses or advanced tools of genome editing.

journal_name

Int J Mol Sci

journal_title

International journal of molecular sciences

authors

Leal AF,Benincore-Flórez E,Solano-Galarza D,Garzón Jaramillo RG,Echeverri-Peña OY,Suarez DA,Alméciga-Díaz CJ,Espejo-Mojica AJ

doi

10.3390/ijms21176213

subject

Has Abstract

pub_date

2020-08-27 00:00:00

issue

17

issn

1422-0067

pii

ijms21176213

journal_volume

21

pub_type

杂志文章,评审

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