GFND2
MCID: GLM015
MIFTS: 33

Glomerulopathy with Fibronectin Deposits 2 (GFND2)

Categories: Genetic diseases, Immune diseases, Nephrological diseases, Rare diseases

Aliases & Classifications for Glomerulopathy with Fibronectin Deposits 2

MalaCards integrated aliases for Glomerulopathy with Fibronectin Deposits 2:

Name: Glomerulopathy with Fibronectin Deposits 2 58 54 76 30 13 6 74
Fibronectin Glomerulopathy 58 54 26 60 76
Glomerulopathy with Fibronectin Deposits 26 60 38 74
Gfnd2 58 54 76
Familial Glomerular Nephritis with Fibronectin Deposits 26 76
Glomerulopathy with Giant Fibrillar Deposits 26 74
Familial Lobular Glomerulopathy 26 74
Gfnd 26 60
Glomerular Nephritis, Familial, with Fibronectin Deposits 58
Glomerular Nephritis Familial with Fibronectin Deposits 54
Glomerulopathy, with Fibronectin Deposits, Type 2 41
Glomerulopathy, with Fibronectin Deposits 41

Characteristics:

Orphanet epidemiological data:

60
fibronectin glomerulopathy
Inheritance: Autosomal dominant; Prevalence: <1/1000000 (Worldwide); Age of onset: All ages;

OMIM:

58
Inheritance:
autosomal dominant

Miscellaneous:
onset of end-stage renal disease 15 to 20 years after onset
slow progression
onset of proteinuria in the second to fourth decades


HPO:

33
glomerulopathy with fibronectin deposits 2:
Onset and clinical course slow progression
Inheritance autosomal dominant inheritance


Classifications:

Orphanet: 60  
Rare renal diseases


Summaries for Glomerulopathy with Fibronectin Deposits 2

NIH Rare Diseases : 54 The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs.Orpha Number: 84090Disease definitionFibronectin glomerulopathy is a hereditary kidney disease characterized by proteinuria, type IV renal tubular acidosis, microscopic hematuria and hypertension that may lead to end-stage renal failure in the second to sixth decade of life.EpidemiologyIt is a very rare disease. The exact prevalence is unknown. Only 16 families have been described in the literature so far.Clinical descriptionFibronectin glomerulopathy may present at different ages, although mostly in adolescence or early adulthood, with typical features of a nephrotic syndrome including hypertension, which can be severe, and edema, which initially develops around the eyes and legs but with time may become generalized. Biochemical analysis shows microscopic hematuria and proteinuria with hypoalbuminemia. Patients may also present with varying degrees of renal failure that progressively worsen over several years, reaching end stage renal disease in the second to sixth decade of life.EtiologyClustering of the disease within families indicates a genetic origin, and segregation with disease appearance in successive generations is consistent with an autosomal dominant pattern of inheritance with age-related penetrance. In 40% of families the disease is caused by heterozygousmutations in the FN1 gene (2q34) encoding fibronectin. However, genetic heterogeneity is suspected. Whole-genomelinkage analysis in a large pedigree showed another disease locus on 1q32, however no specific candidate genes has been identified so far.Diagnostic methodsDiagnosis rests on renal biopsy. Typical findings at light microscopy are enlarged glomeruli with deposits in the mesangium and subendothelial space, with scant immunoreactivity for immunoglobulins or complement factors. Electron microscopy reveals deposits mainly located in the subendothelial space but also in the subepithelial and intramembranous spaces. Homogeneous granular deposits dominate in most cases; in some an admixture of fibrils is observed. The most striking finding is the immunoreactivity of the glomerular deposits to fibronectin. Family history is supportive of the diagnosis.Differential diagnosisDifferential diagnosis includes other chronic non-amyloid glomerulopathies with organized deposits including mixed cryoglobulinemia, fibrillary glomerulonephritis, immunotactoid glomerulopathy, collagen type III glomerulopathy, systemic lupus erythematosus (see these terms), diabetes glomerulopathy and other non-specific collagen deposition diseases. It is difficult to discriminate fibronectin glomerulopathy from membranoproliferative glomerulonephritis (see this term) at light microscopy examination. In all cases strong immunohistochemical positivity to fibronectin is mandatory for differential diagnosis.Genetic counselingGenetic counseling is useful for children of affected subjects with FN1 mutations to identify carriers that are at risk of developing the disease later in life. Monitoring these subjects for proteinuria could allow early treatment with angiotensin inhibitors to delay onset of renal dysfunction.Management and treatmentThere is no specific treatment for fibronectin glomerulopathy. Treatment of symptoms can include corticosteroids, diuretics and treatment for hypertension. Antiproteinuric and renoprotective treatment with ACE inhibitors or anti-AT1R antagonists could be of help to slow renal disease progression. More advanced cases of renal failure require renal dialysis or transplantation.PrognosisPrognosis is uncertain, in some cases the disease follows an indolent course and in others it leads to end stage renal disease and chronic renal failure in the second to sixth decade of life.Visit the Orphanet disease page for more resources.

MalaCards based summary : Glomerulopathy with Fibronectin Deposits 2, also known as fibronectin glomerulopathy, is related to glomerulopathy with fibronectin deposits 1 and nephrotic syndrome. An important gene associated with Glomerulopathy with Fibronectin Deposits 2 is FN1 (Fibronectin 1), and among its related pathways/superpathways are Focal adhesion and ECM-receptor interaction. Affiliated tissues include kidney and eye, and related phenotypes are hypertension and renal insufficiency

Genetics Home Reference : 26 Fibronectin glomerulopathy is a kidney disease that usually develops between early and mid-adulthood but can occur at any age. It eventually leads to irreversible kidney failure (end-stage renal disease).

OMIM : 58 Glomerulopathy with fibronectin deposits is a genetically heterogeneous autosomal dominant disorder characterized clinically by proteinuria, microscopic hematuria, and hypertension that leads to end-stage renal failure in the second to fifth decade of life. Pathologic examination shows enlarged glomeruli with mesangial and subendothelial fibrillary deposits that show strong immunoreactivity to fibronectin (Castelletti et al., 2008). For a discussion of genetic heterogeneity of GFND, see 137950. (601894)

UniProtKB/Swiss-Prot : 76 Glomerulopathy with fibronectin deposits 2: Genetically heterogeneous autosomal dominant disorder characterized clinically by proteinuria, microscopic hematuria, and hypertension that leads to end-stage renal failure in the second to fifth decade of life.

Related Diseases for Glomerulopathy with Fibronectin Deposits 2

Diseases in the Glomerulopathy with Fibronectin Deposits 2 family:

Glomerulopathy with Fibronectin Deposits 1

Diseases related to Glomerulopathy with Fibronectin Deposits 2 via text searches within MalaCards or GeneCards Suite gene sharing:

# Related Disease Score Top Affiliating Genes
1 glomerulopathy with fibronectin deposits 1 12.2
2 nephrotic syndrome 10.2
3 systemic lupus erythematosus 9.9
4 tracheoesophageal fistula with or without esophageal atresia 9.9
5 chronic kidney failure 9.9
6 esophageal atresia 9.9
7 kidney disease 9.9
8 lupus erythematosus 9.9

Graphical network of the top 20 diseases related to Glomerulopathy with Fibronectin Deposits 2:



Diseases related to Glomerulopathy with Fibronectin Deposits 2

Symptoms & Phenotypes for Glomerulopathy with Fibronectin Deposits 2

Human phenotypes related to Glomerulopathy with Fibronectin Deposits 2:

60 33 (show all 14)
# Description HPO Frequency Orphanet Frequency HPO Source Accession
1 hypertension 60 33 hallmark (90%) Very frequent (99-80%) HP:0000822
2 renal insufficiency 60 33 hallmark (90%) Very frequent (99-80%) HP:0000083
3 proteinuria 60 33 hallmark (90%) Very frequent (99-80%) HP:0000093
4 nephrotic syndrome 60 33 hallmark (90%) Very frequent (99-80%) HP:0000100
5 glomerulopathy 60 33 hallmark (90%) Very frequent (99-80%) HP:0100820
6 hypoalbuminemia 60 33 hallmark (90%) Very frequent (99-80%) HP:0003073
7 microscopic hematuria 60 33 hallmark (90%) Very frequent (99-80%) HP:0002907
8 mesangial abnormality 60 33 hallmark (90%) Very frequent (99-80%) HP:0001966
9 pedal edema 33 hallmark (90%) HP:0010741
10 cerebral hemorrhage 60 33 occasional (7.5%) Occasional (29-5%) HP:0001342
11 renal cell carcinoma 33 HP:0005584
12 edema of the lower limbs 60 Very frequent (99-80%)
13 stage 5 chronic kidney disease 33 HP:0003774
14 generalized distal tubular acidosis 33 HP:0004916

Symptoms via clinical synopsis from OMIM:

58
Genitourinary Kidneys:
proteinuria
nephrotic syndrome
microscopic hematuria
renal failure
enlarged glomeruli
more
Cardiovascular Vascular:
hypertension due to renal disease

Clinical features from OMIM:

601894

Drugs & Therapeutics for Glomerulopathy with Fibronectin Deposits 2

Search Clinical Trials , NIH Clinical Center for Glomerulopathy with Fibronectin Deposits 2

Genetic Tests for Glomerulopathy with Fibronectin Deposits 2

Genetic tests related to Glomerulopathy with Fibronectin Deposits 2:

# Genetic test Affiliating Genes
1 Glomerulopathy with Fibronectin Deposits 2 30 FN1

Anatomical Context for Glomerulopathy with Fibronectin Deposits 2

MalaCards organs/tissues related to Glomerulopathy with Fibronectin Deposits 2:

42
Kidney, Eye

Publications for Glomerulopathy with Fibronectin Deposits 2

Articles related to Glomerulopathy with Fibronectin Deposits 2:

(show all 18)
# Title Authors Year
1
A novel variant in FN1 in a family with fibronectin glomerulopathy. ( 30820325 )
2019
2
Fibronectin Glomerulopathy Caused by the Y973C Mutation in Fibronectin: A Case Report and Literature Review. ( 29620516 )
2018
3
Fibronectin glomerulopathy complicated with persistent cloaca and congenital esophageal atresia: a case report and literature review. ( 28877681 )
2017
4
Fibronectin Conformation and Assembly: Analysis of Fibronectin Deletion Mutants and Fibronectin Glomerulopathy (GFND) Mutants. ( 28745050 )
2017
5
Fibronectin glomerulopathy in a 88 year-old male with acute kidney injury on chronic kidney disease: A case report and a review of the literature. ( 27836185 )
2017
6
Fibronectin Glomerulopathy: A Rare Autosomal Dominant Glomerular Disease. ( 28875965 )
2017
7
AJKD Atlas of Renal Pathology: Fibronectin Glomerulopathy. ( 29055354 )
2017
8
Fibronectin glomerulopathy - A sporadic case with unusual clinical manifestation. ( 29265057 )
2017
9
A Case of Fibronectin Glomerulopathy Caused by Missense Mutations in the Fibronectin 1 Gene. ( 29270505 )
2017
10
Clinical and morphological features of fibronectin glomerulopathy: a report of ten patients from a single institution. ( 25601194 )
2015
11
Fibronectin glomerulopathy. ( 26064516 )
2013
12
A recurrent fibronectin glomerulopathy in a renal transplant patient: a case report. ( 22747478 )
2012
13
Fibronectin glomerulopathy: an unusual cause of adult-onset nephrotic syndrome. ( 22721928 )
2012
14
Fibronectin glomerulopathy in a 34-year-old man: a case report. ( 20594046 )
2010
15
Fibronectin glomerulopathy: an uncommon cause of nephrotic syndrome in systemic lupus erythematosus. ( 25983887 )
2008
16
Fibronectin glomerulopathy with nephrotic syndrome in a 3-year-old male. ( 12042895 )
2002
17
The gene for human fibronectin glomerulopathy maps to 1q32, in the region of the regulation of complement activation gene cluster. ( 9837825 )
1998
18
Exclusion of the uteroglobin gene as a candidate for fibronectin glomerulopathy (GFND) ( 9761542 )
1998

Variations for Glomerulopathy with Fibronectin Deposits 2

UniProtKB/Swiss-Prot genetic disease variations for Glomerulopathy with Fibronectin Deposits 2:

76
# Symbol AA change Variation ID SNP ID
1 FN1 p.Tyr973Cys VAR_043918 rs137854488
2 FN1 p.Trp1834Arg VAR_043919 rs137854486
3 FN1 p.Leu1883Arg VAR_043920 rs137854487

ClinVar genetic disease variations for Glomerulopathy with Fibronectin Deposits 2:

6 (show all 14)
# Gene Variation Type Significance SNP ID Assembly Location
1 FN1 NM_212482.2(FN1): c.5921T> C (p.Leu1974Pro) single nucleotide variant Pathogenic rs137854487 GRCh37 Chromosome 2, 216240408: 216240408
2 FN1 NM_212482.2(FN1): c.5921T> C (p.Leu1974Pro) single nucleotide variant Pathogenic rs137854487 GRCh38 Chromosome 2, 215375685: 215375685
3 FN1 NM_212482.2(FN1): c.5775G> C (p.Trp1925Cys) single nucleotide variant Pathogenic rs869025198 GRCh37 Chromosome 2, 216241333: 216241333
4 FN1 NM_212482.2(FN1): c.5775G> C (p.Trp1925Cys) single nucleotide variant Pathogenic rs869025198 GRCh38 Chromosome 2, 215376610: 215376610
5 FN1 NM_212482.2(FN1): c.4414_4416delCCT (p.Pro1472del) deletion Pathogenic rs869025199 GRCh37 Chromosome 2, 216251608: 216251610
6 FN1 NM_212482.2(FN1): c.4414_4416delCCT (p.Pro1472del) deletion Pathogenic rs869025199 GRCh38 Chromosome 2, 215386885: 215386887
7 FN1 NM_212482.2(FN1): c.5773T> A (p.Trp1925Arg) single nucleotide variant Pathogenic rs137854486 GRCh37 Chromosome 2, 216241335: 216241335
8 FN1 NM_212482.2(FN1): c.5773T> A (p.Trp1925Arg) single nucleotide variant Pathogenic rs137854486 GRCh38 Chromosome 2, 215376612: 215376612
9 FN1 NM_212482.2(FN1): c.5921T> G (p.Leu1974Arg) single nucleotide variant Pathogenic rs137854487 GRCh37 Chromosome 2, 216240408: 216240408
10 FN1 NM_212482.2(FN1): c.5921T> G (p.Leu1974Arg) single nucleotide variant Pathogenic rs137854487 GRCh38 Chromosome 2, 215375685: 215375685
11 FN1 NM_212482.2(FN1): c.2918A> G (p.Tyr973Cys) single nucleotide variant Pathogenic rs137854488 GRCh37 Chromosome 2, 216271029: 216271029
12 FN1 NM_212482.2(FN1): c.2918A> G (p.Tyr973Cys) single nucleotide variant Pathogenic rs137854488 GRCh38 Chromosome 2, 215406306: 215406306
13 FN1 NM_212482.2(FN1): c.5651A> G (p.Tyr1884Cys) single nucleotide variant not provided GRCh37 Chromosome 2, 216242957: 216242957
14 FN1 NM_212482.2(FN1): c.5651A> G (p.Tyr1884Cys) single nucleotide variant not provided GRCh38 Chromosome 2, 215378234: 215378234

Expression for Glomerulopathy with Fibronectin Deposits 2

Search GEO for disease gene expression data for Glomerulopathy with Fibronectin Deposits 2.

Pathways for Glomerulopathy with Fibronectin Deposits 2

Pathways related to Glomerulopathy with Fibronectin Deposits 2 according to KEGG:

38
# Name Kegg Source Accession
1 Focal adhesion hsa04510
2 ECM-receptor interaction hsa04512
3 Regulation of actin cytoskeleton hsa04810

GO Terms for Glomerulopathy with Fibronectin Deposits 2

Sources for Glomerulopathy with Fibronectin Deposits 2

3 CDC
7 CNVD
9 Cosmic
10 dbSNP
11 DGIdb
17 EFO
18 ExPASy
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35 ICD10 via Orphanet
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37 IUPHAR
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45 MeSH
46 MESH via Orphanet
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55 NINDS
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58 OMIM
59 OMIM via Orphanet
63 PubMed
65 QIAGEN
70 SNOMED-CT via HPO
71 SNOMED-CT via Orphanet
72 TGDB
73 Tocris
74 UMLS
75 UMLS via Orphanet
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