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175727

Expression of programmed death ligand 1 (PD-L1) in urothelial bladder carcinoma (immunohistochemical and histopathological study)

Article

Last updated: 22 Jan 2023

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-

Tags

Academic medicine

Abstract

The aim of this work is to evaluate the immunohistochemical expression of PD-L1 in tumor cells of urothelial bladder carcinoma. PD-L1 immunoexpression was assessed on 20 cases of radical cystectomy specimens using monoclonal rabbit anti- PD-L1 antibody.  Extent of membranous PD-L1 expression was assigned in each case. Tumor cells showing > 5% expression were considered positive. PD-L1was seen in 6 (30%) cases [1 case score +2 and 5 cases score +3], while 14(70%) cases were negative [7 cases score 0 and 7 cases score +1]. PD-L1 expression in tumor cells was insignificantly correlated with different available clinicopathological parameters such as sex, pathological stage, associatedbilharzial infestation, necrosis, perineural invasion and associated tumor infiltrating mononuclear cells (TIMCs), although PD-L1 positivity tend to predominate in advanced pathological stage of tumor (T3 and T4). These findings may have clinical implications for the management of patients with PD-L1 positive urothelial bladder carcinoma.

DOI

10.21608/ejmr.2021.175727

Keywords

PDL-1, UBC, Immunohistochemistry

Authors

First Name

Nadia

Last Name

Ahmed Abd El-Moeze

MiddleName

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Affiliation

Pathology department, Faculty of medicine, Beni- Suef University, Beni-Suef, 62514, Egypt

Email

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City

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Orcid

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First Name

Marwa

Last Name

Mohamed Sayed

MiddleName

-

Affiliation

Pathology department, Faculty of medicine, Beni- Suef University, Beni-Suef, 62514, Egypt

Email

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City

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Orcid

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First Name

Amr

Last Name

Medht Masoud

MiddleName

-

Affiliation

Urology department, Faculty of medicine, Beni- Suef University, Beni-Suef, 62514, Egypt

Email

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City

-

Orcid

-

First Name

Samira

Last Name

AbdAllah Mahmoud

MiddleName

-

Affiliation

Pathology department, Faculty of medicine, Cairo University, Cairo, 11865, Egypt

Email

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City

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Orcid

-

First Name

Wesam

Last Name

Ismail Moustafa

MiddleName

-

Affiliation

Pathology department, Faculty of medicine, Beni- Suef University, Beni-Suef, 62514, Egypt

Email

-

City

-

Orcid

-

Volume

2

Article Issue

2

Related Issue

23493

Issue Date

2021-06-01

Receive Date

2021-06-01

Publish Date

2021-06-01

Page Start

250

Page End

261

Print ISSN

2682-4396

Online ISSN

2682-440X

Link

https://ejmr.journals.ekb.eg/article_175727.html

Detail API

https://ejmr.journals.ekb.eg/service?article_code=175727

Order

17

Type

Original Article

Type Code

1,224

Publication Type

Journal

Publication Title

Egyptian Journal of Medical Research

Publication Link

https://ejmr.journals.ekb.eg/

MainTitle

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Details

Type

Article

Created At

22 Jan 2023