Akademik Veri Yönetim Sistemi
AMERICAN JOURNAL OF OTOLARYNGOLOGY - HEAD AND NECK MEDICINE AND SURGERY, cilt.43, sa.4, ss.103477-103478, 2022 (SCI-Expanded)
Objectives: This study aimed to examine the relationship between checkpoint receptors (PD-1, PD-L1, PD-L2,
CTLA-4) and lymphoid infiltration level (TILs) with prognostic features of patients with laryngeal squamous cell
carcinoma (LSCC).
Methods: A retrospective study was designed at a tertiary referential university hospital between April 2008 and
December 2020. The surgical specimen of the patients who met the eligibility criteria were re-examined histo-
pathological, sociodemographic, clinical, pathological, and follow-up findings of patients were determined. The
impact of PD-1, PD-L1, PD-L2, CTLA4, and TILs levels for the presence of cancer recurrence, disease-specific
mortality, overall survival (OS), disease-free survival (DFS) was investigated.
Results: Forty-five patients with LSCC were included in the study. The mean follow-up period was 48.3 ± 14.3
months (min: 36, max 84). TILs scores were detected significantly lower in patients with distant metastasis and
recurrence (p = 0.046 and 0.010). Also, only TILs was a significant risk factor for recurrence and survival among
the PD-1, PD-L1, PD-L2, CTLA-4, and TILs (HR = 0.217 CI: 0.070–0.679, p = 0.009 and HR = 0.566, CI:
0,321–980, p = 0.048). Similarly, for the TILs score: > 1 was significant for DFS. (Long-Rank = 0.009). The
examined markers and TILs scores were not a significant predictive factor for OS.
Conclusion: An increase in TILs density in LSCCs is associated with a better prognosis. However, PD-1, PD-L1, PD-
L2, CTLA-4 could not be associated with prognosis. Controlled studies combined with immunotherapy treatment
results are needed to reveal their role as a marker and prognostic factor of the anti-tumor immune response