Evidence map›Paper›PMID 34491907›Full record

ArticleJCI insight2021

Phospholipase A2 enzymes represent a shared pathogenic pathway in psoriasis and pityriasis rubra pilaris.

Shuai Shao, Jiaoling Chen, William R Swindell, Lam C Tsoi, Xianying Xing, Feiyang Ma, Ranjitha Uppala, Mrinal K Sarkar, Olesya Plazyo, Allison C Billi and 10 more

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.7field-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

30 citing papers in PubMed, 60 citations in OpenAlex.

  1. The Phospholipase AJournal of lipid and atherosclerosis · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. CD1a and Lipids as Mediators of T Cell Activation in the Skin.The Journal of investigative dermatology · 2025
    Review
  8. Article
  9. Article
  10. Recent Progress inInternational journal of molecular sciences · 2025
    Review
  11. Article
  12. Review
  13. Establishment of a Mouse Model for Porokeratosis Due to Mevalonate Diphosphate Decarboxylase Deficiency.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2024
    Article
  14. Article
  15. Article
  16. CD1a and skin T cells: a pathway for therapeutic intervention.Clinical and experimental dermatology · 2024
    Review
  17. Review
  18. Nanophytosomal Gel ofPharmaceuticals (Basel, Switzerland) · 2024
    Article
  19. Dermal Delivery ofRecent advances in drug delivery and formulation · 2024
    Article
  20. Microbiome: Role in Inflammatory Skin Diseases.Journal of inflammation research · 2024
    Review
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

20 authors at 6 institutions in 2 countries.

Shuai ShaoDepartment of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shannxi, China.
Jiaoling ChenDepartment of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shannxi, China.
William R SwindellDepartment of Dermatology, University of Michigan, Ann Arbor, Michigan, USA.
Lam C TsoiDepartment of Dermatology, University of Michigan, Ann Arbor, Michigan, USA.
Xianying XingDepartment of Dermatology, University of Michigan, Ann Arbor, Michigan, USA.
Feiyang MaDepartment of Dermatology, Department of Medicine, UCLA, Los Angeles, California, USA.
Ranjitha UppalaDepartment of Dermatology, University of Michigan, Ann Arbor, Michigan, USA.
Mrinal K SarkarDepartment of Dermatology, University of Michigan, Ann Arbor, Michigan, USA.
Olesya PlazyoDepartment of Dermatology, University of Michigan, Ann Arbor, Michigan, USA.
Allison C BilliDepartment of Dermatology, University of Michigan, Ann Arbor, Michigan, USA.
Rachael WasikowskiDepartment of Dermatology, University of Michigan, Ann Arbor, Michigan, USA.
Kathleen M SmithAbbvie Cambridge Research Center, Cambridge, Massachusetts, USA.
Prisca HonoreAbbVie Dermatology Discovery, North Chicago, Illinois, USA.
Victoria E ScottAbbVie Dermatology Discovery, North Chicago, Illinois, USA.
Emanual MaverakisDepartment of Dermatology, UC Davis School of Medicine, Sacramento, California, USA.
J Michelle KahlenbergDivision of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA.
Gang WangDepartment of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shannxi, China.
Nicole L WardDepartments of Nutrition and Dermatology, Case Western Reserve University, Cleveland, Ohio, USA.
Paul W HarmsDepartment of Dermatology, University of Michigan, Ann Arbor, Michigan, USA.
Johann E GudjonssonDepartment of Dermatology, University of Michigan, Ann Arbor, Michigan, USA.
University of Michigan · USAbbVie (United States) · USXijing Hospital · CNCase Western Reserve University · USUniversity of California, Davis · USUniversity of California, Los Angeles · US

Funding

University of Michigan Skin Biology and Diseases Resource-based CenterP30AR075043 · NIAMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ANDRZEJ A. DLUGOSZ · 2019 to 2026
$6.6M
Psoriasis Center of Research TranslationP50AR070590 · NIAMS · CASE WESTERN RESERVE UNIVERSITY · PI WARD, NICOLE LEANNE · 2017 to 2021
$6.5M
TRAINING PROGRAM IN CELL AND MOLECULAR DERMATOLOGYT32AR007197 · NIAMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI JAMES TILFORD ELDER, Sunny Y Wong · 1986 to 2026
$4.2M
Kallikrein-PAR interactions in skin inflammationR01AR073196 · NIAMS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI WARD, NICOLE LEANNE · 2018 to 2023
$3.3M
Role of IL-13 and the IL-13 Associated rs20541 Risk Variant in the Pathogenesis of PsoriasisR01AR069071 · NIAMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI GUDJONSSON, JOHANN ELI · 2015 to 2019
$2.1M
Targeting TNFR2 Pathways in Psoriatic DiseasesR01AR075777 · NIAMS · CLEVELAND CLINIC LERNER COM-CWRU · PI CHANDRASEKHARAN, UNNIKRISHNAN M, HUSNI, ELAINE · 2019 to 2023
$1.8M
Mechanisms of sex discrepancy in autoimmune disease: Regulation of the female-biased VGLL3 immune pathwayK08AR078251 · NIAMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI BILLI, ALLISON CHELSA · 2021 to 2025
$865k
Integrative Biology Approach to Identify and Characterize Roles of lncRNAs Associated with Psoriasis PathologyK01AR072129 · NIAMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI TSOI, LAM CHEUNG · 2017 to 2021
$500k
NIAMS NIH HHS K01 AR072129NIAMS NIH HHS K08 AR078251NIAMS NIH HHS P30 AR075043NIAMS NIH HHS P50 AR070590NIAMS NIH HHS R01 AR069071NIAMS NIH HHS R01 AR073196NIAMS NIH HHS R01 AR075777NIAMS NIH HHS T32 AR007197
6 · The paper itself

Abstract

Altered epidermal differentiation along with increased keratinocyte proliferation is a characteristic feature of psoriasis and pityriasis rubra pilaris (PRP). However, despite this large degree of overlapping clinical and histologic features, the molecular signatures these skin disorders share are unknown. Using global transcriptomic profiling, we demonstrate that plaque psoriasis and PRP skin lesions have high overlap, with all differentially expressed genes in PRP relative to normal skin having complete overlap with those in psoriasis. The major common pathway shared between psoriasis and PRP involves the phospholipases PLA2G2F, PLA2G4D, and PLA2G4E, which were found to be primarily expressed in the epidermis. Gene silencing each of the 3 PLA2s led to reduction in immune responses and epidermal thickness both in vitro and in vivo in a mouse model of psoriasis, establishing their proinflammatory roles. Lipidomic analyses demonstrated that PLA2s affect mobilization of a phospholipid-eicosanoid pool, which is altered in psoriatic lesions and functions to promote immune responses in keratinocytes. Taken together, our results highlight the important role of PLA2s as regulators of epidermal barrier homeostasis and inflammation, identify PLA2s as a shared pathogenic mechanism between PRP and psoriasis, and as potential therapeutic targets for both diseases.

Indexed as

AnimalsHumansMicePhospholipases A2Pityriasis Rubra PilarisPsoriasisPhospholipases A2Autoimmune diseasesDermatologyImmunologyInnate immunitySkin

Identifiers

PMID34491907
PMCPMC8564909
OpenAlexW3197518059

What Socratic 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 Socratic graph.