Evidence map›Paper›PMID 33758172›Full record

ArticleNature communications2021

Adipocyte PHLPP2 inhibition prevents obesity-induced fatty liver.

KyeongJin Kim, Jin Ku Kang, Young Hoon Jung, Sang Bae Lee, Raffaela Rametta, Paola Dongiovanni, Luca Valenti, Utpal B Pajvani

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 38 citations in OpenAlex.

  1. PHLPP is neither a Phosphatase nor a Tumor Suppressor.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
  2. Review
  3. Insulin resistance in type 2 diabetes mellitus.Nature reviews. Endocrinology · 2025
    Review
  4. PHLPP2 is a pseudophosphatase that lost activity in the metazoan ancestor.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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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

8 authors at 4 institutions in 3 countries.

KyeongJin KimDepartment of Medicine, Columbia University, New York, NY, USA. kimkj@inha.ac.kr.ORCID 0000-0001-6865-9141
Jin Ku KangDepartment of Medicine, Columbia University, New York, NY, USA.
Young Hoon JungDepartment of Biomedical Sciences, College of Medicine, Inha University, Incheon, South Korea.
Sang Bae LeeDivision of Life Sciences, Jeonbuk National University, Jeonju, Republic of Korea.ORCID 0000-0002-4031-8051
Raffaela RamettaInternal Medicine and Metabolic Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, DEPT, Università degli Studi di Milano, Milano, Italy.
Paola DongiovanniInternal Medicine and Metabolic Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, DEPT, Università degli Studi di Milano, Milano, Italy.
Luca ValentiInternal Medicine and Metabolic Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, DEPT, Università degli Studi di Milano, Milano, Italy.
Utpal B PajvaniDepartment of Medicine, Columbia University, New York, NY, USA. up2104@columbia.edu.ORCID 0000-0001-5991-2723
University of Milan · ITColumbia University · USInha University · KRJeonbuk National University · KR

Funding

Notch, Type 2 Diabetes and NAFLDR01DK103818 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI PAJVANI, UTPAL · 2015 to 2023
$4.1M
NIDDK NIH HHS R01 DK103818
6 · The paper itself

Abstract

Increased adiposity confers risk for systemic insulin resistance and type 2 diabetes (T2D), but mechanisms underlying this pathogenic inter-organ crosstalk are incompletely understood. We find PHLPP2 (PH domain and leucine rich repeat protein phosphatase 2), recently identified as the Akt Ser473 phosphatase, to be increased in adipocytes from obese mice. To identify the functional consequence of increased adipocyte PHLPP2 in obese mice, we generated adipocyte-specific PHLPP2 knockout (A-PHLPP2) mice. A-PHLPP2 mice show normal adiposity and glucose metabolism when fed a normal chow diet, but reduced adiposity and improved whole-body glucose tolerance as compared to Cre- controls with high-fat diet (HFD) feeding. Notably, HFD-fed A-PHLPP2 mice show increased HSL phosphorylation, leading to increased lipolysis in vitro and in vivo. Mobilized adipocyte fatty acids are oxidized, leading to increased peroxisome proliferator-activated receptor alpha (PPARα)-dependent adiponectin secretion, which in turn increases hepatic fatty acid oxidation to ameliorate obesity-induced fatty liver. Consistently, adipose PHLPP2 expression is negatively correlated with serum adiponectin levels in obese humans. Overall, these data implicate an adipocyte PHLPP2-HSL-PPARα signaling axis to regulate systemic glucose and lipid homeostasis, and suggest that excess adipocyte PHLPP2 explains decreased adiponectin secretion and downstream metabolic consequence in obesity.

Indexed as

AdipocytesAdiponectinAdipose TissueAdiposityAnimalsDiet, High-FatFatty AcidsFatty LiverGene Expression RegulationGlucoseHomeostasisHumansInsulin ResistanceLipid MetabolismLipolysisMiceAdiponectinFatty AcidsGlucosePHLPP2 protein, mousePhosphoprotein PhosphatasesPPAR alphaSterol Esterase

Identifiers

PMID33758172
PMCPMC7988046
OpenAlexW3137727036

What OpenQuestion holds

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LicenceCC BY
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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.