Aplastic Anemia
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
We used peripheral blood flow cytometry to identify glycosylphosphatidylinositol-anchor deficient blood cells, a proaerolysin-resistant colony forming cell assay to select glycosylphosphatidylinositol-anchor deficient progenitor cells, a novel T-lymphocyte enrichment culture assay with proaerolysin selection to expand glycosylphosphatidylinositol-anchor deficient T lymphocytes, and PIG-A gene sequencing assays to identify and analyze PIG-A mutations in patients with aplastic anemia and myelodysplastic syndromes.
|
22315493 |
2012 |
MYELODYSPLASTIC SYNDROME
|
0.170 |
GeneticVariation
|
group |
BEFREE |
We used peripheral blood flow cytometry to identify glycosylphosphatidylinositol-anchor deficient blood cells, a proaerolysin-resistant colony forming cell assay to select glycosylphosphatidylinositol-anchor deficient progenitor cells, a novel T-lymphocyte enrichment culture assay with proaerolysin selection to expand glycosylphosphatidylinositol-anchor deficient T lymphocytes, and PIG-A gene sequencing assays to identify and analyze PIG-A mutations in patients with aplastic anemia and myelodysplastic syndromes.
|
22315493 |
2012 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
We suggest that the somatic PIG-A gene mutations highlight a subgroup of AA having a pathogenetic link with PNH.
|
9163589 |
1997 |
Aplastic Anemia
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
We suggest that the somatic PIG-A gene mutations highlight a subgroup of AA having a pathogenetic link with PNH.
|
9163589 |
1997 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
We report pairs of oligonucleotide primers for polymerase chain reaction that should be useful to amplify and analyze various regions of the PIG-A gene in patients with PNH.
|
8193350 |
1994 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
We produced an animal model of paroxysmal nocturnal hemoglobinuria by conditional Pig-a gene inactivation (Pig-a(-/-)) in hematopoietic cells; mice carrying two lox sites flanking exon 6 of the Pig-a gene were bred with mice carrying the transgene Cre-recombinase under the human c-fes promoter.
|
19679885 |
2010 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
We now show that two patients with PNH II cells also have somatic mutations of the same gene: these produce a partial rather than a total loss of PIG-A function.
|
7986731 |
1994 |
Early myoclonic encephalopathy
|
0.010 |
GeneticVariation
|
disease |
BEFREE |
We identified 4 PIGA mutations in probands showing early myoclonic encephalopathy, West syndrome, or unclassified EOEE.
|
24706016 |
2014 |
Aplastic Anemia
|
0.200 |
GeneticVariation
|
disease |
LHGDN |
We have studied a large series of AA patients with a GPI anchor-deficient clone (AA/PNH), including patients with minor clones, to determine whether their pattern of PIG-A mutations was identical to the reported spectrum in hemolytic PNH.
|
12424196 |
2003 |
Aplastic Anemia
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
We have studied a large series of AA patients with a GPI anchor-deficient clone (AA/PNH), including patients with minor clones, to determine whether their pattern of PIG-A mutations was identical to the reported spectrum in hemolytic PNH.
|
12424196 |
2003 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
We found no significant difference in the pattern of the PIG-A gene mutation between the AA patients with a GPI deficiency and those with de novo PNH.
|
10086790 |
1999 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
We describe here a patient with PNH due to a large insertion of 88 bp; DNA sequencing showed this to be a tandem repeat of PIG-A sequences.
|
9266921 |
1997 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
Biomarker
|
disease |
BEFREE |
We conclude that genetic instability of the PIG-A gene is not a factor in the pathogenesis of PNH.
|
16543465 |
2006 |
CD59 Deficiency
|
0.020 |
GeneticVariation
|
disease |
BEFREE |
We also examined mutations of the PIG-A gene in 11 patients with CD59 deficiency.
|
10086790 |
1999 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
Various gene mutations, including the phosphatidylinositol glycan anchor biosynthesis class A (PIG-A) gene, may contribute to the proliferation of PNH clones.
|
31086586 |
2019 |
Aplastic Anemia
|
0.200 |
GeneticVariation
|
disease |
BEFREE |
Two different mutations of the PIG-A gene were found in the colonies/bursts at the time of AA.
|
10233366 |
1999 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
Biomarker
|
disease |
BEFREE |
To define the phosphatidylinositol glycan-class A (PIG-A) gene abnormality in precursor cells and the changes of expression of glycosylphosphatidylinositol-anchored protein and contribution of paroxysmal nocturnal hemoglobinuria (PNH) clones with PIG-A gene abnormalities among various cell lineages during differentiation and maturation, we investigated CD59 expression on bone marrow CD34(+) cells and peripheral granulocytes from 3 patients with PNH and the PIG-A gene abnormalities in the CD59(-), CD59(+/-), and CD59(+) populations by nucleotide sequence analyses.
|
12411324 |
2002 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
To ascertain the genetic basis of a paroxysmal nocturnal hemoglobinuria (PNH) case without somatic mutations in PIGA, we performed deep next-generation sequencing on all exons of known genes of the glycosylphosphatidylinositol (GPI) anchor synthesis pathway.
|
23733340 |
2013 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
Thus, the small somatic mutation in the PIG-A gene is also responsible for PNH in Thailand.
|
7655005 |
1995 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
Thus, small clones with PIG-A mutations exist commonly in normal individuals, showing clearly that PIG-A gene mutations are not sufficient for the development of PNH.
|
10220445 |
1999 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
Biomarker
|
disease |
BEFREE |
Thus, PIGT-PNH differs from PIGA-PNH both in the mechanism of clonal expansion and in clinical manifestations.
|
31430258 |
2019 |
MYELODYSPLASTIC SYNDROME
|
0.170 |
Biomarker
|
group |
BEFREE |
This theory is supported by clinical observation indicating that PIG-A mutant cells survive immune-mediated bone marrow injury in patients with aplastic anemia, PNH, and myelodysplastic syndromes.
|
12627846 |
2003 |
Aplastic Anemia
|
0.200 |
Biomarker
|
disease |
BEFREE |
This theory is supported by clinical observation indicating that PIG-A mutant cells survive immune-mediated bone marrow injury in patients with aplastic anemia, PNH, and myelodysplastic syndromes.
|
12627846 |
2003 |
Paroxysmal nocturnal hemoglobinuria
|
0.700 |
GeneticVariation
|
disease |
BEFREE |
This suggests that a large proportion of individuals have cells with PIG-A mutations that are not detectable by flow cytometry and thus may have the potential to develop PNH.
|
10520035 |
1999 |
Aplastic Anemia
|
0.200 |
GeneticVariation
|
disease |
LHGDN |
This review examines the clinical and biological relevance of PIG-A mutations in PNH, aplastic anemia and healthy controls.
|
16923549 |
2006 |