Journal of stomatology, oral and maxillofacial surgery · 2025
Non-surgical management of Ameloblastoma: A proof of concept study exploring the immunohistochemical expression of immune checkpoint Programmed Death Ligand- 1 in Ameloblastoma.
СтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Krishna Revathi, Urs Aadithya B, Augustine Jeyaseelan, Kumar Priya
Аннотация
OBJECTIVES: Ameloblastoma (AM) is the most common odontogenic tumour. Non-surgical and conservative treatment approaches are rising in popularity which traditionally involve segmental jaw resection with wide margins. The current study aims to assess the immunohistochemical expression of immune checkpoint Programmed death ligand - 1 (PDL-1) in AM when compared to normal dental follicle (DF).
METHODS: Immunohistochemical staining of AM (n = 25) and DF (n = 12) using PDL-1 antibody was performed on tissue blocks retrieved retrospectively from the archives. The PDL-1 Total Positive Score (TPS), staining intensity score and H score were calculated. These were statistically compared and p value ≤ 0.05 was considered significant.
RESULTS: We observed statistically significant increase in the expression of PDL-1 in AM (80 %) when compared to DF (58.4 %) in terms of TPS score (p < 0.001), H score (p = 0.022) and staining intensity (p < 0.001). PDL-1 positivity was seen in both peripheral and central odontogenic epithelial tumour cells with increased staining in the stellate reticulum like areas.
CONCLUSIONS: This study highlights the evidence of immune checkpoint alteration in AM which is a benign but aggressive odontogenic neoplasm. The preliminary results encourage more research in the terrain of immunotherapy for odontogenic neoplasms.
METHODS: Immunohistochemical staining of AM (n = 25) and DF (n = 12) using PDL-1 antibody was performed on tissue blocks retrieved retrospectively from the archives. The PDL-1 Total Positive Score (TPS), staining intensity score and H score were calculated. These were statistically compared and p value ≤ 0.05 was considered significant.
RESULTS: We observed statistically significant increase in the expression of PDL-1 in AM (80 %) when compared to DF (58.4 %) in terms of TPS score (p < 0.001), H score (p = 0.022) and staining intensity (p < 0.001). PDL-1 positivity was seen in both peripheral and central odontogenic epithelial tumour cells with increased staining in the stellate reticulum like areas.
CONCLUSIONS: This study highlights the evidence of immune checkpoint alteration in AM which is a benign but aggressive odontogenic neoplasm. The preliminary results encourage more research in the terrain of immunotherapy for odontogenic neoplasms.