Evidence map›Paper›PMID 35545051›Full record

ArticleCell reports2022

Lipogenesis mediated by OGR1 regulates metabolic adaptation to acid stress in cancer cells via autophagy.

Smitha Pillai, Iqbal Mahmud, Rohit Mahar, Crystal Griffith, Michael Langsen, Jonathan Nguyen, Jonathan W Wojtkowiak, Pawel Swietach, Robert A Gatenby, Marilyn M Bui and 4 more

Abstract read
In one paragraph

Article in Cell reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
–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

28 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  19. Recent advances in acid sensing by G protein coupled receptors.Pflugers Archiv : European journal of physiology · 2024
    Review
  20. Phenotypic screen of sixty-eight colorectal cancer cell lines identifies CEACAM6 and CEACAM5 as markers of acid resistance.Proceedings of the National Academy of Sciences of the United States of America · 2024
    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

14 authors.

Smitha PillaiDepartment of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA. Electronic address: smitha.pillai@moffitt.org.
Iqbal MahmudDepartment of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, USA.
Rohit MaharDepartment of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL, USA.
Crystal GriffithDepartment of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
Michael LangsenDepartment of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
Jonathan NguyenAnalytical Microscopy Core, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
Jonathan W WojtkowiakDepartment of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
Pawel SwietachDepartment of Physiology, Anatomy and Genetics Parks Road, Oxford OX1 3PT, UK.
Robert A GatenbyDepartment of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA; Department of Radiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
Marilyn M BuiAnalytical Microscopy Core, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA; Department of Pathology, Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
Matthew E MerrittDepartment of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL, USA.
Patricia McDonaldDepartment of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
Timothy J GarrettDepartment of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, USA.
Robert J GilliesDepartment of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA; Department of Radiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.

Funding

TRANSLATIONAL RESEARCHP30CA076292 · NCI · UNIVERSITY OF SOUTH FLORIDA · PI Christine O'Connell · 1998 to 2026
$93.5M
"Research Supplement to Promote Diversity in Health-Related Research", as part of Moffitt PS-OC, "Cancer as a Complex adaptive System"U54CA193489 · NCI · H. LEE MOFFITT CANCER CTR & RES INST · PI ANDERSON, ALEXANDER ROBERTSON ALLAN, GATENBY, ROBERT A · 2015 to 2020
$12.5M
Causes & Consequences of Acid pH in TumorsR01CA077575 · NCI · UNIVERSITY OF ARIZONA · PI GILLIES, ROBERT J. · 1999 to 2018
$8.5M
TR&D3-SCHP41GM122698 · NIGMS · FLORIDA STATE UNIVERSITY · PI BREY, WILLIAM W, CROSS, TIMOTHY A · 2017 to 2021
$6.7M
Web Portal CoreU2CDK119889 · NIDDK · UNIVERSITY OF FLORIDA · PI CONLON, MICHAEL, GARRETT, TIMOTHY J · 2018 to 2021
$1.9M
Imaging Hepatic Gluconeogenesis with Hyperpolarized DihydroxyacetoneR01DK105346 · NIDDK · UNIVERSITY OF FLORIDA · PI MERRITT, MATTHEW E · 2016 to 2020
$1.7M
NCI NIH HHS P30 CA076292NCI NIH HHS R01 CA077575NCI NIH HHS U54 CA193489NIDDK NIH HHS R01 DK105346NIDDK NIH HHS U2C DK119889NIGMS NIH HHS P41 GM122698
6 · The paper itself

Abstract

Malignant tumors exhibit altered metabolism resulting in a highly acidic extracellular microenvironment. Here, we show that cytoplasmic lipid droplet (LD) accumulation, indicative of a lipogenic phenotype, is a cellular adaption to extracellular acidity. LD marker PLIN2 is strongly associated with poor overall survival in breast cancer patients. Acid-induced LD accumulation is triggered by activation of the acid-sensing G-protein-coupled receptor (GPCR) OGR1, which is expressed highly in breast tumors. OGR1 depletion inhibits acid-induced lipid accumulation, while activation by a synthetic agonist triggers LD formation. Inhibition of OGR1 downstream signaling abrogates the lipogenic phenotype, which can be rescued with OGR1 ectopic expression. OGR1-depleted cells show growth inhibition under acidic growth conditions in vitro and tumor formation in vivo. Isotope tracing shows that the source of lipid precursors is primarily autophagy-derived ketogenic amino acids. OGR1-depleted cells are defective in endoplasmic reticulum stress response and autophagy and hence fail to accumulate LDs affecting survival under acidic stress.

Indexed as

LipogenesisNeoplasmsAcidsAutophagyHumansLipidsReceptors, G-Protein-CoupledSignal TransductionAcidsLipidsReceptors, G-Protein-Coupledacidosisacid-sensing GPCRadiposomesautophagyCP: CancerER stresslipid dropletslipid metabolismlipogenesismetabolic adaptationOGR1/GPR68

Identifiers

PMID35545051
PMCPMC9137419

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.