Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1992-12-3
pubmed:abstractText
The effects of acetyl-N-Ser-Asp-Lys-Pro (Ac-SDKP) in human long-term bone marrow cultures (LTBMCs) were assessed by measuring the number of progenitors and the development of stromal cells over a 6-week course. In a first set of experiments, AcSDKP was added weekly at each medium change. Under these conditions, no significant effect of the peptide was observed. In contrast, by adding AcSDKP daily at 10(-10) M, the growth of the progenitors of the non-adherent (NA) compartment was inhibited by about 35%. This inhibition was entirely reversible; after stopping the addition of the peptide at the fourth week, the number of progenitors returned to control level within 2 weeks. Conversely, AcSDKP did not significantly change the number of the progenitors present in the adherent layer. In addition, AcSDKP did not affect the formation of the stromal layer nor induce the secretion of cytokines, such as tumor necrosis factor alpha (TNF-alpha), interleukin 1 beta (IL-1 beta), granulocyte colony-stimulating factor (G-CSF), interleukin 3 (IL-3), or interleukin 6 (IL-6). Our results indicate that AcSDKP has inhibitory but reversible effects on NA progenitors and does not induce long-term modifications of the microenvironment, both of particular interest for its clinical application.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0301-472X
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1165-9
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed-meshheading:1385195-Amino Acid Sequence, pubmed-meshheading:1385195-Bone Marrow, pubmed-meshheading:1385195-Bone Marrow Cells, pubmed-meshheading:1385195-Cell Adhesion, pubmed-meshheading:1385195-Cell Division, pubmed-meshheading:1385195-Cells, Cultured, pubmed-meshheading:1385195-Enzyme-Linked Immunosorbent Assay, pubmed-meshheading:1385195-Granulocyte Colony-Stimulating Factor, pubmed-meshheading:1385195-Granulocytes, pubmed-meshheading:1385195-Hematopoiesis, pubmed-meshheading:1385195-Hematopoietic Stem Cells, pubmed-meshheading:1385195-Humans, pubmed-meshheading:1385195-Interleukin-3, pubmed-meshheading:1385195-Interleukin-6, pubmed-meshheading:1385195-Macrophages, pubmed-meshheading:1385195-Molecular Sequence Data, pubmed-meshheading:1385195-Oligopeptides, pubmed-meshheading:1385195-Time Factors, pubmed-meshheading:1385195-Tumor Necrosis Factor-alpha
pubmed:year
1992
pubmed:articleTitle
Reversible inhibitory effects and absence of toxicity of the tetrapeptide acetyl-N-Ser-Asp-Lys-Pro (AcSDKP) in human long-term bone marrow culture.
pubmed:affiliation
Department of Hematology, Faculté de Médecine Saint Antoine, Paris, France.
pubmed:publicationType
Journal Article