Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1988-12-30
pubmed:abstractText
Leukocyte adhesion deficiency (LAD) is a recessive autosomal disease characterized by life-threatening recurrent bacterial infections, by defective functions of leukocytes and by deficient membrane expression of leukocyte adhesion glycoproteins. These proteins, LFA-1, Mac-1 and p150,95, are alpha 1/beta 1 heterodimers composed of different alpha chains and of a common beta chain. Patients with the severe phenotype of the disease completely lack the three glycoproteins on cell surface. Previous studies showed a conserved synthesis of the LFA-1 alpha chain precursor in cytosol of patients' cells and an inconstant presence of the beta chain precursor. When present, precursors are in free form and not associated to alpha/beta complexes in the cells of patients with the severe phenotype. The availability of the beta chain cDNA probe allowed us to examine the beta chain gene expression in the lymphoblastoid cell lines of 4 patients. On the basis of the results obtained both at protein and RNA levels we can distinguish 3 types of mutations characterized by (a) barely detectable beta subunit messenger RNA and undetectable beta precursor, (b) decreased level of beta subunit mRNA and undetectable beta precursor and (c) normal beta subunit mRNA level and detectable beta precursor of normal size.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0014-2980
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1575-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Heterogeneity in the molecular defect leading to the leukocyte adhesion deficiency.
pubmed:affiliation
INSERM U132, Hôpital des Enfants-Malades, Paris, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't