Evidence map›Paper›PMID 37476371›Full record

ArticleFrontiers in oncology2023

Yes-associated protein-1 overexpression in ocular surface squamous neoplasia; a potential diagnostic marker and therapeutic target.

Peter Julius, Stepfanie N Siyumbwa, Fred Maate, Phyllis Moonga, Guobin Kang, Trevor Kaile, John T West, Charles Wood, Peter C Angeletti

Open access · goldAbstract read
In one paragraph

Article in Frontiers in oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

7 citing papers in PubMed, 8 citations in OpenAlex.

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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

9 authors at 4 institutions in 2 countries.

Peter JuliusDepartment of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia.
Stepfanie N SiyumbwaDepartment of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia.
Fred MaateDepartment of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia.
Phyllis MoongaUniversity Teaching Hospital, Eye Hospital, Lusaka, Zambia.
Guobin KangDepartment of Interdisciplinary Oncology, Louisiana State University Health Science Center, New Orleans, LA, United States.
Trevor KaileDepartment of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia.
John T WestDepartment of Interdisciplinary Oncology, Louisiana State University Health Science Center, New Orleans, LA, United States.
Charles WoodDepartment of Interdisciplinary Oncology, Louisiana State University Health Science Center, New Orleans, LA, United States.
Peter C AngelettiNebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, NE, United States.
University of Zambia · ZMLouisiana State University Health Sciences Center New Orleans · USUniversity of Nebraska–Lincoln · USUniversity Teaching Hospital · ZM

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Yes-associated protein-1 (YAP-1) is a Hippo system transcription factor, which serves as an oncogene in squamous cell carcinoma, and several solid tumors when the Hippo pathway is dysregulated. Yet, the activity of YAP-1 in ocular surface squamous neoplasia (OSSN) has not been determined. Here, we investigate the relationship between YAP-1 overexpression and OSSN. Using a cross-sectional study design, we recruited 227 OSSN patients from the University Teaching Hospitals in Lusaka, Zambia. Immunohistochemistry was used to assess YAP-1 protein overexpression in tumor tissue relative to surrounding benign squamous epithelium. OSSN patient samples (preinvasive, n = 62, 27% and invasive, n = 165, 73%) were studied. One hundred forty-nine invasive tumors contained adjacent preinvasive tissue, bringing the total number of preinvasive lesions examined to 211 (62 + 149). There was adjacent benign squamous epithelium in 50.2% (114/227) of OSSN samples. Nuclear YAP- 1 was significantly overexpressed in preinvasive (Fisher's (F): p <.0001, Monte Carlo (MC): p <.0001) and invasive (F: p <.0001, MC: p <.0001) OSSN in comparison to adjacent benign squamous epithelium when analyzed for basal keratinocyte positive count, staining intensity, expression pattern, and Immunostaining intensity-distribution index. YAP-1 expression did not differ between preinvasive and invasive OSSN (p >.05), keratinizing and non- keratinizing cancer (p >.05), or between T1/T2 and T3/T4 stages in invasive tumors (p >.05). However, grade 2 and 3 tumors had significantly stronger nucleus YAP-1 overexpression intensity than grade 1 tumors (F: p = .0078, MC: p = .0489). By immunohistochemistry, we identified significant overexpression (upregulation of YAP-1 protein expression) in preinvasive and invasive OSSN lesions compared to neighboring benign squamous epithelium. YAP-1 expression was significantly higher in poorly and moderately differentiated invasive squamous cancer than in well-differentiated carcinomas. Overexpression of YAP-1 within the margin of preinvasive and invasive OSSN, but not in the neighboring normal epithelium, indicates that it plays a role in the development and progression of OSSN.

Indexed as

invasive OSSNocular surface squamous neoplasia (OSSN)preinvasive OSSNyes-associated protein-1 (YAP-1)Zambia

Identifiers

PMID37476371
PMCPMC10354641
OpenAlexW4383198574

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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.