Cited by 28Multiple Myeloma Research and TreatmentsCell death mechanisms and regulationLymphoma Diagnosis and Treatment

The Bcl-2 family member Bfl-1/A1 is strongly repressed in normal and malignant plasma cells but is a potent anti-apoptotic factor for myeloma cells

Open access
Tarte, Karin, Jourdan, Michel, Veyrune, Jean Luc, Berberich, Ingolf, Fiol, Geneviève, Redal, Nicole, Shaughnessy, John, Klein, Bernard·2004·British Journal of Haematology

Abstract

Terminal B-cell differentiation is a multi-step process, from short-lived plasmablasts to mature long-lived plasma cells (PC). The anti-apoptotic Bcl-2 family member Bfl-1/A1 plays a critical role in the survival of mature B cells. However, its potential involvement at the later stages of B-cell development remains highly controversial. Our aim was thus to clarify the place of Bfl-1/A1 in the biology of normal PC and in the pathogenesis of multiple myeloma (MM), the major PC dyscrasia. Using gene expression profiling and quantifiable reverse transcription polymerase chain reaction experiments, we found a similar down-regulation of Bfl-1/A1 in both normal immature plasmablasts and mature PC when compared with B cells. In myeloma cells, the level of Bfl-1/A1 was low and Bfl-1/A1 was not a nuclear factor kappaB-inducible gene. Collectively, these data demonstrate that Bfl-1/A1 is not involved in the prolonged survival of normal mature PC, and that Bfl-1/A1 deregulation is not a common oncogenic event in MM. However, overexpression of Bfl-1/A1 by retroviral transduction promoted autonomous survival of an interleukin-6-dependent myeloma cell line and rendered it less sensitive to dexamethasone. Thus, Bfl-1/A1 transduction could be an interesting tool to obtain myeloma cell lines from primary samples and to favour the in vitro generation of antibody-secreting, long-lived normal PC.

Integrity signals

Registry

Crossref · 10.1111/j.1365-2141.2004.04908.x

Cites

51 of 51 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Tarte, K., Jourdan, M., Veyrune, J. L., Berberich, I., Fiol, G., Redal, N., Shaughnessy, J., & Klein, B.
Affiliations
  • Inserm (FR)
  • Hôpital Saint Eloi (FR)
  • University of Würzburg (DE)
  • University of Arkansas for Medical Sciences (US)
Corresponding author
Klein, Bernard
Venue
British Journal of Haematology
Publisher
Wiley
Published
2004-03-23
Volume
125
Issue
3
Pages
373-382
ISSN
  • 0007-1048 (ISSN-L)
  • 1365-2141
OpenAlex
W2049017785
Cited by
28
References
51
Citations by year
2025: 1 · 2022: 1 · 2021: 2 · 2020: 1 · 2019: 1 · 2018: 3 · 2014: 1 · 2013: 1
FWCI
2.51
Type
journal article
Language
en
Open access
Locations
  • British Journal of Haematology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • HAL (submittedVersion, other-oa)
Topics
  • Health Sciences › Medicine › Hematology › Multiple Myeloma Research and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Lymphoma Diagnosis and Treatment
Keywords
Bcl-2 family proteins, plasma cells, multiple myeloma, apoptosis, anti-apoptotic factors, plasmablasts, B cell differentiation, interleukin-6, dexamethasone sensitivity, retroviral transduction, myeloma cell lines, long-lived plasma cells
MeSH terms
Cells, Cultured, Dexamethasone, Humans, Multiple Myeloma, Neoplasm Proteins, Plasma Cells, Transduction, Genetic, Tumor Cells, Cultured, Down-Regulation, Minor Histocompatibility Antigens, Interleukin-6, Apoptosis, Proto-Oncogene Proteins c-bcl-2, Reverse Transcriptase Polymerase Chain Reaction, Oligonucleotide Array Sequence Analysis

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review