Evaluation of programmed cell death ligand 1 expression in a contemporary cohort of penile squamous cell carcinoma and its correlation with clinicopathologic and survival parameters : A study of 134 patients

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OBJECTIVES: Penile squamous cell carcinomas (PCs) are rare malignancies with a dismal prognosis in a metastatic setting; therefore, novel immunotherapeutic modalities are an unmet need. One such modality is the immune checkpoint molecule programmed cell death ligand 1 (PD-L1). We sought to analyze PD-L1 expression and its correlation with various clinicopathologic parameters in a contemporary cohort of 134 patients with PC.

METHODS: A cohort of 134 patients with PC was studied for PD-L1 immunohistochemistry. The PD-L1 expression was evaluated using a combined proportion score with a cutoff of 1 or higher to define positivity. The results were correlated with various clinicopathologic parameters.

RESULTS: Overall, 77 (57%) patients had positive PD-L1 expression. Significantly high PD-L1 expression was observed in high-grade tumors (P = .006). We found that 37% of human papillomavirus (HPV)-associated subtypes and 73% of other histotype tumors expressed PD-L1, while 63% of HPV-associated tumors and 27% of other histotype tumors did not (odds ratio, 1.35; P = .002 when compared for HPV-associated groups vs all others). Similarly, PD-L1-positive tumors had a 3.61-times higher chance of being node positive than PD-L1-negative tumors (P = .0009). In addition, PD-L1 high-positive tumors had a 5-times higher chance of being p16ink4a negative than PD-L1 low-positive tumors (P = .004). The PD-L1-positive tumors had a lower overall survival and cancer-specific survival than PD-L1-negative tumors.

CONCLUSIONS: Overall, PD-L1 expression is associated with high-grade and metastatic tumors. Lower PD-L1 expression is observed more frequently in HPV-associated (warty or basaloid) subtypes than in other, predominantly HPV-independent types. As a result, PD-L1 positivity, including higher expression, portends lower overall and cancer-specific survival. These data provide a rational for further investigating PD-L1-based immunotherapeutics in PC.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:161

Enthalten in:

American journal of clinical pathology - 161(2024), 1 vom: 04. Jan., Seite 49-59

Sprache:

Englisch

Beteiligte Personen:

Lobo, Anandi [VerfasserIn]
Mishra, Sourav K [VerfasserIn]
Jha, Shilpy [VerfasserIn]
Tiwari, Ankit [VerfasserIn]
Kapoor, Rahul [VerfasserIn]
Sharma, Shivani [VerfasserIn]
Kaushal, Seema [VerfasserIn]
Kiranmai, N Sri [VerfasserIn]
Das, M Rakshitha [VerfasserIn]
Peddinti, Kamal P [VerfasserIn]
Sharma, Shailendra K [VerfasserIn]
Bhardwaj, Nitin [VerfasserIn]
Arora, Samriti [VerfasserIn]
Jain, Deepika [VerfasserIn]
Jain, Ekta [VerfasserIn]
Munjal, Gauri [VerfasserIn]
Shinde, Sayali [VerfasserIn]
Malik, Vipra [VerfasserIn]
Singh, Hena [VerfasserIn]
Varshney, Juhi [VerfasserIn]
Pradhan, Dinesh [VerfasserIn]
Dixit, Mallika [VerfasserIn]
Pattnaik, Niharika [VerfasserIn]
Sharma, Ashish K [VerfasserIn]
Barapatre, Yogesh R [VerfasserIn]
Pradhan, Manas [VerfasserIn]
Satapathy, Kaliprasad [VerfasserIn]
Rath, Debadarshi [VerfasserIn]
Jaiswal, Sunil [VerfasserIn]
Das, Stithi [VerfasserIn]
Khadenga, Chiraranjan [VerfasserIn]
Routa, Sudhasmita [VerfasserIn]
Baisakh, Manas R [VerfasserIn]
Tiwari, Romila [VerfasserIn]
Sampat, Nakul Y [VerfasserIn]
Chakrabarti, Indranil [VerfasserIn]
Parwani, Anil V [VerfasserIn]
Mohanty, Sambit K [VerfasserIn]

Links:

Volltext

Themen:

B7-H1 Antigen
Biomarkers, Tumor
Cancer-specific survival
Journal Article
Ligands
Overall survival
PD-L1
Penile
Squamous cell carcinoma

Anmerkungen:

Date Completed 05.01.2024

Date Revised 05.01.2024

published: Print

Citation Status MEDLINE

doi:

10.1093/ajcp/aqad107

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM361377789