Evidence map›Paper›PMID 31873727›Full record

ArticleThe Journal of experimental medicine2020

Syk degradation restrains plasma cell formation and promotes zonal transitions in germinal centers.

Natalia Davidzohn, Adi Biram, Liat Stoler-Barak, Amalie Grenov, Bareket Dassa, Ziv Shulman

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 22 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Natalia DavidzohnDepartment of Immunology, Weizmann Institute of Science, Rehovot, Israel.
Adi BiramDepartment of Immunology, Weizmann Institute of Science, Rehovot, Israel.
Liat Stoler-BarakDepartment of Immunology, Weizmann Institute of Science, Rehovot, Israel.
Amalie GrenovDepartment of Immunology, Weizmann Institute of Science, Rehovot, Israel.
Bareket DassaDepartment of Life Science Core Facilities, Weizmann Institute of Science, Rehovot, Israel.
Ziv ShulmanDepartment of Immunology, Weizmann Institute of Science, Rehovot, Israel.
Weizmann Institute of Science · IL

Funding

European Research Council 677713
6 · The paper itself

Abstract

Germinal centers (GCs) are sites at which B cells proliferate and mutate their antibody-encoding genes in the dark zone (DZ), followed by affinity-based selection in the light zone (LZ). B cell antigen receptor (BCR) signals induce Syk activation followed by rapid phosphatase-mediated desensitization; however, how degradation events regulate BCR functions in GCs is unclear. Here, we found that Syk degradation restrains plasma cell (PC) formation in GCs and promotes B cell LZ to DZ transition. Using a mouse model defective in Cbl-mediated Syk degradation, we demonstrate that this machinery attenuates BCR signaling intensity by mitigating the Kras/Erk and PI3K/Foxo1 pathways, and restricting the expression of PC transcription factors in GC B cells. Inhibition of Syk degradation perturbed gene expression, specifically in the LZ, and enhanced the generation of PCs without affecting B cell proliferation. These findings reveal how long-lasting attenuation of signal transduction by degradation events regulates cell fate within specialized microanatomical sites.

Indexed as

AnimalsB-LymphocytesCell ProliferationGene ExpressionGerminal CenterLymphocyte ActivationMiceMice, Inbred C57BLPlasma CellsReceptors, Antigen, B-CellSignal TransductionSyk KinaseReceptors, Antigen, B-CellSyk Kinase

Identifiers

PMID31873727
PMCPMC7062533
OpenAlexW2997404094

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.