Evidence map›Paper›PMID 40374954›Full record

ArticleNature biotechnology2026

Proteoform profiling of endogenous single cells from rat hippocampus at scale.

Pei Su, Michael A R Hollas, Indira Pla, Stanislav Rubakhin, Fatma Ayaloglu Butun, Joseph B Greer, Bryan P Early, Ryan T Fellers, Michael A Caldwell, Jonathan V Sweedler and 2 more

Abstract read
In one paragraph

Article in Nature biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Review
  2. Probing Proteoform Heterogeneity From Single Human Oocytes.Molecular & cellular proteomics : MCP · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
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

12 authors.

Pei SuDepartment of Chemistry, Northwestern University, Evanston, IL, USA.ORCID http://orcid.org/0000-0001-6148-0181
Michael A R HollasProteomics Center of Excellence, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, USA.ORCID http://orcid.org/0000-0002-0797-3134
Indira PlaProteomics Center of Excellence, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, USA.
Stanislav RubakhinBeckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, USA.ORCID http://orcid.org/0000-0003-0437-1493
Fatma Ayaloglu ButunProteomics Center of Excellence, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, USA.
Joseph B GreerProteomics Center of Excellence, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, USA.
Bryan P EarlyProteomics Center of Excellence, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, USA.
Ryan T FellersProteomics Center of Excellence, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, USA.
Michael A CaldwellProteomics Center of Excellence, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, USA.ORCID http://orcid.org/0000-0002-8636-0706
Jonathan V SweedlerBeckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, USA.ORCID http://orcid.org/0000-0003-3107-9922
Jared O KafaderProteomics Center of Excellence, Chemistry of Life Processes Institute, Northwestern University, Evanston, IL, USA.
Neil L KelleherDepartment of Chemistry, Northwestern University, Evanston, IL, USA. n-kelleher@northwestern.edu.ORCID http://orcid.org/0000-0002-8815-3372

Funding

Tumor Environment and Metastasis (TEAM) Research ProgramP30CA060553 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Daniela E Matei · 1993 to 2026
$153.9M
The UIUC Neuroproteomics Center on Cell-Cell SignalingP30DA018310 · NIDA · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI Elena V Romanova · 2004 to 2026
$24.9M
TR&D 7: Cell Specific ProteomicsP41GM108569 · NIGMS · NORTHWESTERN UNIVERSITY · PI KELLEHER, NEIL L · 2015 to 2024
$13.6M
Renewable and Specific Affinity Reagents for Mapping Proteoforms in Human TissuesUH3CA246635 · NCI · NORTHWESTERN UNIVERSITY · PI KELLEHER, NEIL L · 2019 to 2021
$1.4M
Single Cell Proteoform Profiling using Top-Down Mass SpectrometryK99AI183290 · NIAID · NORTHWESTERN UNIVERSITY · PI SU, PEI · 2024 to 2025
$249k
NCI NIH HHS P30 CA060553NCI NIH HHS UH3 CA246635NIAID NIH HHS K99 AI183290NIDA NIH HHS P30 DA018310NIGMS NIH HHS P41 GM108569
6 · The paper itself

Abstract

We perform intact proteoform profiling of 10,809 endogenous single cells from the rat hippocampus using single-cell proteoform imaging mass spectrometry (scPiMS). scPiMS directly extracts whole proteins and demonstrates high throughput for MS-based single-cell proteomics compared with existing approaches. We develop an informatics workflow dedicated to this datatype and use it to assign neurons, astrocytes or microglia cell types according to their proteoform signatures.

Indexed as

HippocampusProteomeProteomicsSingle-Cell AnalysisAnimalsAstrocytesMass SpectrometryMicrogliaNeuronsRatsProteome

Identifiers

PMID40374954
PMCPMC12404177

What OpenQuestion holds

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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.