PreprintCited by 96Ovarian cancer diagnosis and treatmentHippo pathway signaling and YAP/TAZCancer Immunotherapy and Biomarkers

PRKCI promotes immune suppression in ovarian cancer

Open access
Sarkar, Sharmistha, Bristow, Christopher A., Dey, Prasenjit, Rai, Kunal, Perets, Ruth, Ramirez-Cardenas, Alejandra, Malasi, Shruti, Huang-Hobbs, Emmet +14 more·2017·Genes & Development

Abstract

A key feature of high-grade serous ovarian carcinoma (HGSOC) is frequent amplification of the 3q26 locus harboring PRKC-ι ( PRKCI ). Here, we show that PRKCI is also expressed in early fallopian tube lesions, called serous tubal intraepithelial carcinoma. Transgenic mouse studies establish PRKCI as an ovarian cancer-specific oncogene. Mechanistically, we show that the oncogenic activity of PRKCI relates in part to the up-regulation of TNFα to promote an immune-suppressive tumor microenvironment characterized by an abundance of myeloid-derived suppressor cells and inhibition of cytotoxic T-cell infiltration. Furthermore, system-level and functional analyses identify YAP1 as a downstream effector in tumor progression. In human ovarian cancers, high PRKCI expression also correlates with high expression of TNFα and YAP1 and low infiltration of cytotoxic T cells. The PRKCI–YAP1 regulation of the tumor immunity provides a therapeutic strategy for highly lethal ovarian cancer.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1101/gad.296640.117

Cites

65 of 65 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • PRKCI has been implied in immunosuppression, and genetic variation in the PRKCI gene has been found to be associated with bipolar disorder and autism.

    “The Protein Kinase C Iota has been implied in immunosuppression (Sarkar et al., 2017), and genetic variation in the PRKCI gene has been found to be associated with bipolar disorder (Iwamoto et al., 2011) and autism (Shen et al., 2011).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Sarkar, S., Bristow, C. A., Dey, P., Rai, K., Perets, R., Ramirez-Cardenas, A., Malasi, S., Huang-Hobbs, E., Haemmerle, M., Wu, S. Y., McGuire, M., Protopopov, A., Jiang, S., Liu, J. F., Hirsch, M. S., Chang, Q., Lazar, A. J., Sood, A. K., Drapkin, R., DePinho, R., Draetta, G., & Chin, L.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • Rambam Health Care Campus (IL)
  • Harvard University (US)
  • Brigham and Women's Hospital (US)
  • The University of Texas System (US)
Venue
Genes & Development
Published
2017-06-01
Volume
31
Issue
11
Pages
1109-1121
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2736137408
Cited by
93
References
64
Citations by year
2026: 5 · 2025: 11 · 2024: 10 · 2023: 8 · 2022: 17 · 2021: 7 · 2020: 17 · 2019: 11 · 2018: 6
Type
posted content
Language
en
Open access
Licence
cc-by-nc
Locations
  • Genes & Development (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • Ann and Sol Schreiber Mentored Investigator Award (POE/DF/02.2011)
  • Foundation for Women's Cancer, and Cancer Prevention (RP101502, RP101489, P50CA083639)
  • Israeli Science Foundation
  • European Commission (FP7-PEOPLE-CIG)
  • Israeli Cancer Association
  • Dr. Miriam and Sheldon Adelson Medical Research Foundation
  • Honorable Tina Brozman Foundation
  • Robert and Debra First Fund
  • Department of Obstetrics and Gynecology at the University Of Pennsylvania Perelman School of Medicine
  • National Institutes of Health (CA083639, UH3TR000943)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian cancer diagnosis and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
Keywords
PRKCI, high-grade serous ovarian cancer, serous tubal intraepithelial carcinoma, tumor immunosuppression, TNF-α, myeloid-derived suppressor cells, cytotoxic T cell infiltration, YAP, tumor microenvironment, oncogenes, fallopian tube lesions, transgenic mouse model
MeSH terms
YAP-Signaling Proteins, Protein Kinase C-lambda, Animals, Cell Movement, Female, Humans, Immune Tolerance, Isoenzymes, Mice, Transgenic, Ovarian Neoplasms, Phosphoproteins, Protein Kinase C, T-Lymphocytes, Cytotoxic, Tumor Necrosis Factor-alpha, Gene Expression Regulation, Neoplastic, Cytokines, Cell Cycle Proteins, Adaptor Proteins, Signal Transducing, Mice, Tumor Microenvironment

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review