" /> Ceroid lipofuscinosis, neuronal, 3 - CISMeF





Preferred Label : Ceroid lipofuscinosis, neuronal, 3;

Symbol : CLN3;

CISMeF acronym : CLN3;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : JNCL; Spielmeyer-sjogren disease; Vogt-spielmeyer disease; Neuronal ceroid lipofuscinosis, juvenile; Batten disease;

Description : The neuronal ceroid lipofuscinoses (NCL; CLN) are a clinically and genetically heterogeneous group of neurodegenerative disorders characterized by the intracellular accumulation of autofluorescent lipopigment storage material in different patterns ultrastructurally. The clinical course includes progressive dementia, seizures, and progressive visual failure (Mole et al., 2005). For a general phenotypic description and a discussion of genetic heterogeneity of CLN, see CLN1 (256730). The hallmark of CLN3 is the ultrastructural pattern of lipopigment with a 'fingerprint' profile, which can have 3 different appearances: pure within a lysosomal residual body; in conjunction with curvilinear or rectilinear profiles; and as a small component within large membrane-bound lysosomal vacuoles. The combination of fingerprint profiles within lysosomal vacuoles is a regular feature of blood lymphocytes from patients with CLN3 (Mole et al., 2005).;

Inheritance : Autosomal recessive;

Molecular basis : Caused by mutation in the CLN3 lysosomal/endosomal transmembrane protein, Battenin gene (CLN3, 607042.0001);

Laboratory abnormalities : Lipopigment in extraneuronal cells; 'Fingerprint profiles' ultrastructurally in cells; 'Curvilinear profiles' ultrastructurally in cells;

Prefixed ID : #204200;

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18/06/2024


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