Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-2-26
pubmed:abstractText
Fanconi anemia (FA) is a rare condition due to the genetic inactivation of the FA/BRCA pathway. During childhood, most FA patients display progressive bone marrow failure (BMF), the mechanism of which has not been clarified to date. We analyzed BM mesenchymal stem cells (MSCs) from a series of 20 FA patients with BMF (patient median age 12.5 years old, range 7-34). Expression of FANCD2 and sensitivity to mitomycin C, differentiation capacities, and hematopoiesis-supporting abilities, as well as proliferation, cell senescence, and telomere length were assessed. FA MSCs demonstrated hypersensitivity to mitomycin C compared to control MSCs, as expected for FA cells. FA MSCs had normal immunophenotype, support long-term culture of hematopoietic stem cells (HSCs), and display normal differentiation capacities. Telomere loss during cell aging was similar for FA and control MSCs. However, FA MSCs showed reduced long-term proliferation ability, higher stem cell factor and interleukin-6 levels, and increased expression of senescent-associated beta-galactosidase compared to normal MSCs, suggesting a potential role of the BM microenvironment in long-term BMF.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1557-8534
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
203-8
pubmed:meshHeading
pubmed-meshheading:19572808-Adolescent, pubmed-meshheading:19572808-Adult, pubmed-meshheading:19572808-Bone Marrow, pubmed-meshheading:19572808-Cell Aging, pubmed-meshheading:19572808-Cell Differentiation, pubmed-meshheading:19572808-Cell Proliferation, pubmed-meshheading:19572808-Cells, Cultured, pubmed-meshheading:19572808-Child, pubmed-meshheading:19572808-Cohort Studies, pubmed-meshheading:19572808-Fanconi Anemia, pubmed-meshheading:19572808-Fanconi Anemia Complementation Group D2 Protein, pubmed-meshheading:19572808-Female, pubmed-meshheading:19572808-Flow Cytometry, pubmed-meshheading:19572808-Humans, pubmed-meshheading:19572808-Immunoblotting, pubmed-meshheading:19572808-Immunophenotyping, pubmed-meshheading:19572808-Interleukin-6, pubmed-meshheading:19572808-Male, pubmed-meshheading:19572808-Mesenchymal Stem Cells, pubmed-meshheading:19572808-Stem Cell Factor, pubmed-meshheading:19572808-Telomere, pubmed-meshheading:19572808-Young Adult
pubmed:year
2010
pubmed:articleTitle
Bone marrow microenvironment in fanconi anemia: a prospective functional study in a cohort of fanconi anemia patients.
pubmed:affiliation
Cell Therapy Unit, Assistance Publique-Hôpitaux de Paris, Saint-Louis Hospital, University Paris, Paris, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't