Evidence map›Paper›PMID 38048228›Full record

ArticleThe Journal of cell biology2024

Phosphatidylserine synthesis controls oncogenic B cell receptor signaling in B cell lymphoma.

Jumpei Omi, Taiga Kato, Yohei Yoshihama, Koki Sawada, Nozomu Kono, Junken Aoki

Open access · hybridAbstract read
In one paragraph

Article in The Journal of cell biology, 2024. 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
2.1field-weighted citation impact, top 12% 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, 13 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Jumpei OmiDepartment of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.ORCID 0000-0003-2503-6045
Taiga KatoDaiichi Sankyo Co., Ltd. , Tokyo, Japan.ORCID 0000-0001-5478-809X
Yohei YoshihamaDaiichi Sankyo Co., Ltd. , Tokyo, Japan.ORCID 0000-0002-7634-8519
Koki SawadaDepartment of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.ORCID 0000-0003-1071-1933
Nozomu KonoDepartment of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.ORCID 0000-0002-0871-8477
Junken AokiDepartment of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.ORCID 0000-0001-9435-1896
University of Tokyo Health Sciences · JPDaiichi-Sankyo (Japan) · JP

Funding

Japan Agency for Medical Research and Development JP21gm1210013Japan Science and Technology Agency Moonshot R&D Program JPMJMS2023-11Japan Society for the Promotion of Science 22K15272
6 · The paper itself

Abstract

Cancer cells harness lipid metabolism to promote their own survival. We screened 47 cancer cell lines for survival dependency on phosphatidylserine (PS) synthesis using a PS synthase 1 (PTDSS1) inhibitor and found that B cell lymphoma is highly dependent on PS. Inhibition of PTDSS1 in B cell lymphoma cells caused a reduction of PS and phosphatidylethanolamine levels and an increase of phosphoinositide levels. The resulting imbalance of the membrane phospholipidome lowered the activation threshold for B cell receptor (BCR), a B cell-specific survival mechanism. BCR hyperactivation led to aberrant elevation of downstream Ca2+ signaling and subsequent apoptotic cell death. In a mouse xenograft model, PTDSS1 inhibition efficiently suppressed tumor growth and prolonged survival. Our findings suggest that PS synthesis may be a critical vulnerability of malignant B cell lymphomas that can be targeted pharmacologically.

Indexed as

Lymphoma, B-CellPhosphatidylserinesReceptors, Antigen, B-CellAnimalsApoptosisHumansMiceNitrogenous Group TransferasesPhosphatidylethanolaminesPhosphatidylinositolsSignal TransductionNitrogenous Group TransferasesphosphatidylethanolaminePhosphatidylethanolaminesPhosphatidylinositolsPhosphatidylserinesphospholipid serine base exchange enzymeReceptors, Antigen, B-Cell

Identifiers

PMID38048228
PMCPMC10694799
OpenAlexW4389295200

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.