B-Cell Regeneration Profile and Minimal Residual Disease Status in Bone Marrow of Treated Multiple Myeloma Patients.
B-cell regeneration
hemodilution
immunophenotyping
measurable residual disease
multiple myeloma
Journal
Cancers
ISSN: 2072-6694
Titre abrégé: Cancers (Basel)
Pays: Switzerland
ID NLM: 101526829
Informations de publication
Date de publication:
03 Apr 2021
03 Apr 2021
Historique:
received:
08
02
2021
revised:
27
03
2021
accepted:
29
03
2021
entrez:
30
4
2021
pubmed:
1
5
2021
medline:
1
5
2021
Statut:
epublish
Résumé
B-cell regeneration during therapy has been considered as a strong prognostic factor in multiple myeloma (MM). However, the effects of therapy and hemodilution in bone marrow (BM) B-cell recovery have not been systematically evaluated during follow-up. MM (n = 177) and adult (≥50y) healthy donor (HD; n = 14) BM samples were studied by next-generation flow (NGF) to simultaneously assess measurable residual disease (MRD) and residual normal B-cell populations. BM hemodilution was detected in 41 out of 177 (23%) patient samples, leading to lower total B-cell, B-cell precursor (BCP) and normal plasma cell (nPC) counts. Among MM BM, decreased percentages (vs. HD) of BCP, transitional/naïve B-cell (TBC/NBC) and nPC populations were observed at diagnosis. BM BCP increased after induction therapy, whereas TBC/NBC counts remained abnormally low. At day+100 postautologous stem cell transplantation, a greater increase in BCP with recovered TBC/NBC cell numbers but persistently low memory B-cell and nPC counts were found. At the end of therapy, complete response (CR) BM samples showed higher CD19
Identifiants
pubmed: 33916787
pii: cancers13071704
doi: 10.3390/cancers13071704
pmc: PMC8038337
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Centro de Investigación Biomédica en Red de Cáncer
ID : CB16/12/00400, CB16/12/00233, CB16/12/00369, CB16/12/00489, CB16/12/00480
Organisme : Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES/DGPU)
ID : 000281/2016-06
Organisme : Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES-PROEX)
ID : 641/2018
Organisme : Conselho Nacional de Desenvolvimento Científico e Tecnológico of Brazil (CNPQ)
ID : 400194/2014-7
Organisme : Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro of Brazil (FAPERJ)
ID : E26/110.105/2014, E26/102.191/2013 and E01/200/537/2018
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