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논문 기본 정보

자료유형
학술저널
저자정보
Thu Dang Anh Phan (University of Medicine and Pharmacy at Ho Chi Minh City) Thao Quyen Nguyen (University of Medicine and Pharmacy at Ho Chi Minh City) Nhi Thuy To (Children Hospital 2) Thien Ly Thanh (University of Medicine and Pharmacy at Ho Chi Minh City) Dat Quoc Ngo (University of Medicine and Pharmacy at Ho Chi Minh City)
저널정보
대한병리학회 Journal of Pathology and Translational Medicine Journal of Pathology and Translational Medicine Vol.58 No.1
발행연도
2024.1
수록면
29 - 34 (6page)
DOI
10.4132/jptm.2023.12.07

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Background: Anaplastic lymphoma kinase (ALK) mutations have been identified as a prominent cause of some familial and sporadic neuroblastoma (NB). ALK expression in NB and its relationship with clinical and histopathological features remains controversial. This study investigated ALK expression and its potential relations with these features in NB.Methods: Ninety cases of NB at the Department of Pathology, University of Medicine and Pharmacy at Ho Chi Minh City, Viet Nam from 01/01/2018 to 12/31/2021, were immunohistochemically stained with ALK (D5F3) antibody. The ALK expression and its relations with some clinical and histopathological features were investigated.Results: The rate of ALK expression in NB was 91.1%. High ALK expression (over 50% of tumor cells were positive with moderate-strong intensity) accounted for 65.6%, and low ALK expression accounted for 34.4%. All the <i>MYCN</i>-amplified NB patients had ALK immunohistochemistry positivity, most cases had high ALK protein expression. The undifferentiated subtype of NB had a lower ALK-positive rate than the poorly differentiated and differentiated subtype. The percentages of ALK positivity were significantly higher in more differentiated histological types of NB (p = .024). There was no relation between ALK expression and: age group, sex, primary tumor location, tumor stage, <i>MYCN</i> status, clinical risk, Mitotic-Karyorrhectic Index, prognostic group, necrosis, and calcification.Conclusions: ALK was highly expressed in NB. ALK expression was not related to several clinical and histopathological features. More studies are needed to elucidate the association between ALK expression and ALK gene status and to investigate disease progression, especially the oncogenesis of ALK-positive NB.

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