Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
20
pubmed:dateCreated
2009-12-7
pubmed:databankReference
pubmed:abstractText
Multiparameter flow cytometry immunophenotyping allows discrimination between normal (N-) and myelomatous (MM-) plasma cells (PCs) within the bone marrow plasma cell compartment (BMPCs). Here we report on the prognostic relevance of detecting more than 5% residual normal plasma cells from all bone marrow plasma cells (N-PCs/BMPCs) by multiparameter flow cytometry in a series of 594 newly diagnosed symptomatic MM patients, uniformly treated according to the Grupo Español de MM 2000 (GEM2000) protocol. Our results show that symptomatic MM patients with more than 5% N-PCs/BMPCs (n = 80 of 594; 14%) have a favorable baseline clinical prospect, together with a significantly lower frequency of high-risk cytogenetic abnormalities and higher response rates. Moreover, this group of patients had a significantly longer progression-free survival (median, 54 vs 42 months, P = .001) and overall survival (median, not reached vs 89 months, P = .04) than patients with less than or equal to 5% N-PCs/BMPCs. Our findings support the clinical value of detecting residual normal PCs in MM patients at diagnosis because this reveals a good prognostic category that could benefit from specific therapeutic approaches. This trial was registered at www.clinicaltrials.gov as NCT00560053.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1528-0020
pubmed:author
pubmed-author:BladéJoanJ, pubmed-author:CarreraDoloresD, pubmed-author:GEM (Grupo Español de MM)/PETHEMA (Programa para el Estudio de la..., pubmed-author:GalendeJosefinaJ, pubmed-author:García de CocaAlfonsoA, pubmed-author:García-BoyeroRaimundoR, pubmed-author:GonzálezYolandaY, pubmed-author:GutiérrezNorma CNC, pubmed-author:HernándezJoseJ, pubmed-author:López-BergesMaria ConsueloMC, pubmed-author:LahuertaJuan JoséJJ, pubmed-author:MartínAlejandroA, pubmed-author:MartínezRafaelR, pubmed-author:MateoGemaG, pubmed-author:MateosMaria VictoriaMV, pubmed-author:MontalbánMaria AngelesMA, pubmed-author:MontejanoLauraL, pubmed-author:OrfaoAlbertoA, pubmed-author:PérezJose JJJ, pubmed-author:PaivaBrunoB, pubmed-author:PalomeraLuisL, pubmed-author:San-MiguelJesús FJF, pubmed-author:SuredaAnnaA, pubmed-author:VidrialesMaria-BelénMB, pubmed-author:de la RubiaJavierJ, pubmed-author:de las HerasNataliaN
pubmed:issnType
Electronic
pubmed:day
12
pubmed:volume
114
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4369-72
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
The persistence of immunophenotypically normal residual bone marrow plasma cells at diagnosis identifies a good prognostic subgroup of symptomatic multiple myeloma patients.
pubmed:affiliation
Hospital Universitario de Salamanca, Salamanca, Spain.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't