scholarly journals T and B cell population changes in young and in adult rats infected with Plasmodium berghei.

1976 ◽  
Vol 14 (1) ◽  
pp. 178-183 ◽  
Author(s):  
S M Gravely ◽  
J Hamburger ◽  
J P Kreier
1978 ◽  
Vol 96 (11) ◽  
pp. 2031-2035 ◽  
Author(s):  
A. Laule ◽  
M. K. Cable ◽  
C. E. Hoffman ◽  
C. Hanna

2007 ◽  
Vol 131 (2) ◽  
pp. 282-287
Author(s):  
Dan Iancu ◽  
Suyang Hao ◽  
Pei Lin ◽  
S. Keith Anderson ◽  
Jeffrey L. Jorgensen ◽  
...  

Abstract Context.—Bone marrow (BM) examination is part of the staging workup of lymphoma patients. Few studies have compared BM histologic findings with results of flow cytometric immunophenotyping analysis in follicular lymphoma (FL) patients. Objective.—To correlate histologic findings with immunophenotypic data in staging BM biopsy and aspiration specimens of FL patients. Design.—Bone marrow biopsy specimens of untreated FL patients were reviewed. Histologic findings were correlated with 3-color flow cytometric immunophenotyping results on corresponding BM aspirates. Results.—Bone marrow biopsy specimens (with or without aspirates) of 114 patients with histologic evidence of FL in BM were reviewed. There were 76 bilateral and 38 unilateral biopsies performed, resulting in 190 specimens: 187 involved by FL and 3 negative (in patients with a positive contralateral specimen). The extent of BM involvement was <5% in 32 (17.1%), ≥5% and ≤25% in 102 (54.6%), >25% and ≤50% in 27 (14.4%), and >50% in 26 (13.9%) specimens. The pattern of involvement was purely paratrabecular in 81 (43.3%), mixed in 80 (42.8%), and purely nonparatrabecular in 26 (13.9%). Immunophenotyping was only performed unilaterally, on BM aspirates of 92 patients, and was positive for a monoclonal B-cell population in 53 (57.6%) patients. Immunophenotyping was more often negative when biopsy specimens showed FL with a purely paratrabecular pattern. For comparison, we assessed 163 FL patients without histologic evidence of FL in BM also analyzed by flow cytometric immunophenotyping. A monoclonal B-cell population was identified in 5 patients (3%). Conclusions.—Our data suggest that 3-color flow cytometric immunophenotyping adds little information to the evaluation of staging BM specimens of FL patients.


Author(s):  
H. Bazin ◽  
B. Platteau ◽  
I. C. M. MacLennan ◽  
N. S. A. Stuart ◽  
M. Khan ◽  
...  
Keyword(s):  
B Cell ◽  

Author(s):  
J. Lortan ◽  
D. Gray ◽  
D. S. Kumararatne ◽  
B. Platteau ◽  
H. Bazin ◽  
...  
Keyword(s):  
B Cell ◽  

2020 ◽  
Author(s):  
Christoph Ruschil ◽  
Gisela Gabernet ◽  
Gildas Lepennetier ◽  
Simon Heumos ◽  
Miriam Kaminski ◽  
...  

1AbstractDouble negative (DN) (CD19+CD20lowCD27−IgD−) B cells are expanded in patients with autoimmune and infectious diseases; however their role in the humoral immune response remains unclear. Using systematic flow cytometric analyses of peripheral blood B cell subsets, we observed an inflated DN B cell population in patients with variety of active inflammatory conditions: myasthenia gravis, Guillain-Barré syndrome, neuromyelitis optica spectrum disorder, meningitis/encephalitis, and rheumatic disorders. Furthermore, we were able to induce DN B cells in healthy subjects following vaccination against influenza and tick borne encephalitis virus. Transcriptome analysis revealed a gene expression profile in DN B cells that clustered with naïve B cells, memory B cells, and plasmablasts. Immunoglobulin VH transcriptome sequencing and analysis of recombinant antibodies revealed clonal expansion of DN B cells, that were targeted against the vaccine antigen. Our study suggests that DN B cells are expanded in multiple inflammatory neurologic diseases and represent an inducible B cell population that responds to antigenic stimulation, possibly through an extra-follicular maturation pathway.


HemaSphere ◽  
2019 ◽  
Vol 3 (S1) ◽  
pp. 951
Author(s):  
Y. Cohen ◽  
I. Cohen ◽  
C. Perry ◽  
I. Avivi ◽  
S. Kay ◽  
...  

2017 ◽  
Vol 8 ◽  
Author(s):  
Ana Esteve-Solé ◽  
Irene Teixidó ◽  
Angela Deyà-Martínez ◽  
Jordi Yagüe ◽  
Ana M. Plaza-Martín ◽  
...  

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