RGD Reference Report - Characterisation of Lamp2-deficient rats for potential new animal model of Danon disease. - Rat Genome Database

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Characterisation of Lamp2-deficient rats for potential new animal model of Danon disease.

Authors: Ma, Shuoyi  Zhang, Miao  Zhang, Shuai  Wang, Jing  Zhou, Xia  Guo, Guanya  Wang, Lu  Wang, Min  Peng, Zhengwu  Guo, Changcun  Zheng, Xiaohong  Zhou, Xinmin  Wang, Jingbo  Han, Ying 
Citation: Ma S, etal., Sci Rep. 2018 May 2;8(1):6932. doi: 10.1038/s41598-018-24351-w.
RGD ID: 13703117
Pubmed: PMID:29720683   (View Abstract at PubMed)
PMCID: PMC5932014   (View Article at PubMed Central)
DOI: DOI:10.1038/s41598-018-24351-w   (Journal Full-text)

Danon disease (DD) is caused by the absence or malfunction of lysosomal-associated membrane protein 2 (LAMP2). Although Lamp2-deficient mice and DD patients have similar characteristics, these mice have clear limitations and are clinically inconsistent. The aim of our paper is to outline the characteristics of Lamp2-deficient rats and to contrast this model with currently available DD mouse models. The baseline levels of some serum enzymes were elevated in Lamp2y/- rats along with hypercholesterolemia and hyperglycaemia at 8 weeks. Echocardiography showed that IVSd (1.500¿±¿0.071 vs. 2.200¿±¿1.147, P¿<¿0.01) and LVPWd (1.575¿±¿0.063 vs. 1.850¿±¿0.029, P¿<¿0.01) were significantly increased, and GCS (-13.20¿±¿0.4814 vs. -6.954¿±¿0.665) and GRS (21.42¿±¿1.807 vs. 7.788¿±¿1.140) were sharply decreased. Meanwhile, substantial myocyte disruption, hypertrophic muscle fibres, interstitial fibrosis and microvascular hyperplasia could be observed in the heart tissue. Lamp2y/- rats also displayed abnormal behaviours in the open field and fear conditioning tests. Notably, Lamp2y/- rats manifested other system dysfunctions, such as retinopathy, chronic kidney injury and sterility. Based on these results, Lamp2-deficient rats exhibited greater similarity to DD patients in terms of onset and multisystem lesions than did mouse models, and these rats could be used as a valuable animal model for DD.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
LAMP2Humanchronic conjunctivitis  ISOLamp2 (Rattus norvegicus)in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2Ratchronic conjunctivitis  IMP in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2Mousechronic conjunctivitis  ISOLamp2 (Rattus norvegicus)in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2em1Ratchronic conjunctivitis  IMP in hemizygote mutant male (LAMP2y/-)RGD 
SD-Lamp2em1Ratchronic conjunctivitis  IMP in hemizygote mutant male (LAMP2y/-)RGD 
LAMP2Humancognitive disorder  ISOLamp2 (Rattus norvegicus)in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2Ratcognitive disorder  IMP in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2Mousecognitive disorder  ISOLamp2 (Rattus norvegicus)in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2em1Ratcognitive disorder  IMP in hemizygote mutant male (LAMP2y/-)RGD 
LAMP2HumanDanon disease  ISOLamp2 (Rattus norvegicus)in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2RatDanon disease  IMP in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2MouseDanon disease  ISOLamp2 (Rattus norvegicus)in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2em1RatDanon disease  IMP in hemizygote mutant male (LAMP2y/-)RGD 
SD-Lamp2em1RatDanon disease MODEL: inducedIMP in hemizygote mutant male (LAMP2y/-)RGD 
LAMP2Humanhypertrophic cardiomyopathy  ISOLamp2 (Rattus norvegicus)in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2Rathypertrophic cardiomyopathy  IMP in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2Mousehypertrophic cardiomyopathy  ISOLamp2 (Rattus norvegicus)in hemizygote mutant male (LAMP2y/-)RGD 
Lamp2em1Rathypertrophic cardiomyopathy  IMP in hemizygote mutant male (LAMP2y/-)RGD 
SD-Lamp2em1Rathypertrophic cardiomyopathy  IMP in hemizygote mutant male (LAMP2y/-)RGD 

Phenotype Annotations    Click to see Annotation Detail View

Mammalian Phenotype

Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Lamp2Ratabnormal learning/memory/conditioning  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2em1Ratabnormal learning/memory/conditioning  IMP in hemizygote mutant male LAMP2y/-RGD 
SD-Lamp2em1Ratabnormal learning/memory/conditioning  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2Ratabnormal locomotor behavior  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2em1Ratabnormal locomotor behavior  IMP in hemizygote mutant male LAMP2y/-RGD 
SD-Lamp2em1Ratabnormal locomotor behavior  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2Ratdecreased b-wave amplitude  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2em1Ratdecreased b-wave amplitude  IMP in hemizygote mutant male LAMP2y/-RGD 
SD-Lamp2em1Ratdecreased b-wave amplitude  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2Ratincreased creatine kinase level  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2em1Ratincreased creatine kinase level  IMP in hemizygote mutant male LAMP2y/-RGD 
SD-Lamp2em1Ratincreased creatine kinase level  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2Ratincreased heart weight  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2em1Ratincreased heart weight  IMP in hemizygote mutant male LAMP2y/-RGD 
SD-Lamp2em1Ratincreased heart weight  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2Ratthick interventricular septum  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2em1Ratthick interventricular septum  IMP in hemizygote mutant male LAMP2y/-RGD 
SD-Lamp2em1Ratthick interventricular septum  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2Ratthick ventricular wall  IMP in hemizygote mutant male LAMP2y/-RGD 
Lamp2em1Ratthick ventricular wall  IMP in hemizygote mutant male LAMP2y/-RGD 
SD-Lamp2em1Ratthick ventricular wall  IMP in hemizygote mutant male LAMP2y/-RGD 
Objects Annotated

Genes (Rattus norvegicus)
Lamp2  (lysosomal-associated membrane protein 2)
Lamp2em1  (lysosomal-associated membrane protein 2; TALEN induced mutant1)

Genes (Mus musculus)
Lamp2  (lysosomal-associated membrane protein 2)

Genes (Homo sapiens)
LAMP2  (lysosomal associated membrane protein 2)

Strains
SD-Lamp2em1  (NA)


Additional Information