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406383

Evaluation of Histopathological and Prognostic Significance of Programmed Death Ligand 1 (PD-L1) Expression of Cutaneous Squamous Cell Carcinoma and Basal Cell Carcinoma

Article

Last updated: 01 Feb 2025

Subjects

-

Tags

• Tissue

Abstract

Basal cell carcinoma and Cutaneous squamous cell carcinoma are the most common malignancies in humans. Five-year survival rates of these tumors are considerably high, and classical treatment methods, such as surgery and radiotherapy, are generally sufficient. However, additional systemic treatment may be required for high-risk, locally advanced, and metastatic BCC and CSCC. PD-L1 activation plays an important role in the tumor's avoidance of immune surveillance. PD-L1 expression has been studied in different tumor types. However, data on PD-L1 expression in BCC and CSCC are limited. The aim of this study is to evaluate the immunohistochemical expression of PD-L1 in CSCC and BCC cases and detect its relationship with other clinicopathological parameters as a prognostic factor. A total of 47 formalin fixed paraffin embedded skin biopsies of patients with CSCC (19) and BCC (28) were collected and studied immunohistochemically for PD-L1. All biopsies were scored for the PD-L1 expression in tumor cells and TILs. PD-L1expression was positive in 14 (73.7%) of the included CSCC cases, while 5 (26.3%) were negative. Score 0 was seen in 5 cases (26.3%), Score +1 was seen in 6 cases (31.6%), score +2 was seen in 8 cases (42.1%). PD-L1 score in tumor cells showing significant correlation with tumor size, PD-L1 expression in TILs and PD-L1 scores in TILs.  According to 28 BCC cases, 27 (96.4%) showed negative PD-L1 expression in tumor cells while only one case (3.6%) has positive expression, however according to PD-L1 expression in TILs 11(39.3%) cases were negative but 17(60.7%) cases showed positive expression.

DOI

10.21608/ejctr.2024.307403.1021

Keywords

Cutaneous squamous cell carcinoma, basal cell carcinoma, PD-L1 expression

Authors

First Name

Abla

Last Name

Mahmoud

MiddleName

Sayed

Affiliation

Pathology department, Faculty of Medicine, Beni-Suef University, Egypt

Email

ablasayedmahmoud@gmail.com

City

beni-suef

Orcid

-

First Name

Nadia

Last Name

Abd El-Moeze

MiddleName

Ahmed

Affiliation

Pathology department, Faculty of Medicine, Beni-Suef University, Egypt

Email

nadia011205@med.bsu.edu.eg

City

beni-suef

Orcid

0000-0002-3899-9652

First Name

Mai

Last Name

Abd Alzeem

MiddleName

Rowaey

Affiliation

Pathology department, Faculty of Medicine, Beni-Suef University, Egypt

Email

mairowaey@gmail.com

City

-

Orcid

-

First Name

Eman

Last Name

Abd Elmaogod

MiddleName

Ahmed

Affiliation

Pathology department, Faculty of Medicine, Beni-Suef University, Egypt

Email

eman.addelatty@med.bsu.edu.eg

City

Beni suef

Orcid

-

Volume

3

Article Issue

1

Related Issue

52680

Issue Date

2025-01-01

Receive Date

2024-07-28

Publish Date

2025-01-01

Page Start

40

Page End

55

Print ISSN

2812-5436

Online ISSN

2812-5444

Link

https://ejctr.journals.ekb.eg/article_406383.html

Detail API

http://journals.ekb.eg?_action=service&article_code=406383

Order

406,383

Type

Original articles

Type Code

2,629

Publication Type

Journal

Publication Title

Egyptian Journal of Cell and Tissue Research

Publication Link

https://ejctr.journals.ekb.eg/

MainTitle

Evaluation of Histopathological and Prognostic Significance of Programmed Death Ligand 1 (PD-L1) Expression of Cutaneous Squamous Cell Carcinoma and Basal Cell Carcinoma

Details

Type

Article

Created At

01 Feb 2025