Evidence map›Paper›PMID 30989440›Full record

ArticleMolecular imaging and biology2019

Mapping pH at Cancer Cell Surfaces.

Da Wei, Donald M Engelman, Yana K Reshetnyak, Oleg A Andreev

Abstract read
In one paragraph

Article in Molecular imaging and biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Tumor treatment by pHLIP-targeted antigen delivery.Frontiers in bioengineering and biotechnology · 2022
    Article
  10. Pharmacokinetic modeling reveals parameters that govern tumor targeting and delivery by a pH-Low Insertion Peptide (pHLIP).Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Article
  12. Kinetics of pHLIP peptide insertion into and exit from a membrane.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  13. Article
  14. Review
  15. 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

4 authors.

Da WeiPhysics Department, University of Rhode Island, 2 Lippitt Rd, Kingston, RI, 02874, USA.
Donald M EngelmanDepartment of Molecular Biophysics and Biochemistry, Yale, Box 208114, New Haven, CT, 06520-8114, USA.
Yana K ReshetnyakPhysics Department, University of Rhode Island, 2 Lippitt Rd, Kingston, RI, 02874, USA.
Oleg A AndreevPhysics Department, University of Rhode Island, 2 Lippitt Rd, Kingston, RI, 02874, USA. andreev@uri.edu.ORCID http://orcid.org/0000-0002-1532-7079

Funding

TM INTERACTIONS IN MEMBRANE PROTEIN FOLDING AND FUNCTIONR01GM073857 · NIGMS · YALE UNIVERSITY · PI ANDREEV, OLEG A, ENGELMAN, DONALD M. · 2006 to 2023
$8.4M
NIGMS NIH HHS R01 GM073857
6 · The paper itself

Abstract

purposeTo develop a tool to measure the pH at the surfaces of individual cells. PROCEDURES: The SNARF pH-sensitive dye was conjugated to a pHLIP® peptide (pH-Low Insertion Peptide) that binds cellular membranes in tumor spheroids. A beam splitter allows simultaneous recording of two images (580 and 640 nm) by a CCD camera. The ratio of the two images is converted into a pH map resolving single spheroid cells. An average pH for each cell is calculated and a pH histogram is derived.

resultsSurface pH depends on cellular glycolytic activity, which was varied by adding glucose or deoxy-glucose. Glucose was found to decrease the surface pH relative to the pH of the bulk solution. The surface pH of metastatic cancer cells was lower than that of non-metastatic cells indicating a higher glycolytic activity.

conclusionsOur method allows cell surface pH measurement and its correlation with cellular glycolytic activity.

Indexed as

BenzopyransCell Line, TumorCell MembraneHumansHydrogen-Ion ConcentrationImage Processing, Computer-AssistedMembrane ProteinsNeoplasm MetastasisNeoplasmsBenzopyransMembrane ProteinspHLIP proteinSNARF dyepHLIPpH measurementsSNARF fluorescenceTumor acidityWarburg effect

Identifiers

PMID30989440
PMCPMC9258692

What OpenQuestion holds

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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.