A novel automated IHC staining system for quality control application in ALK immunohistochemistry testing.

IF 2.3 4区医学 Q3 ONCOLOGY Pathology & Oncology Research Pub Date : 2025-02-13 eCollection Date: 2025-01-01 DOI:10.3389/pore.2025.1611964

Chunxiao Hou, Xueru Song, Hongwei Chen, Chengdong Chang, Jinfeng Lu, Cheng Li, Haiyan Qu, Rui Guo, Jingyi Xu, Liming Xu

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引用次数: 0

Abstract

The establishment of positive and negative controls in immunohistochemistry (IHC) screening for anaplastic lymphoma kinase (ALK) rearrangements is essential in the treatment of lung adenocarcinoma. However, positive control of patient tissue is rare and comes with ethical issues. A novel automated solution for ALK IHC quality control management was investigated by comparison with the established D5F3 antibody on the VENTANA system in 87 lung adenocarcinoma specimens with known ALK status re-analyzed by fluorescence in situ hybridization. The BP6165 concentrated antibody on the LYNX480 PLUS platform demonstrated excellent sensitivity and specificity (98.30% and 100%, respectively) in 87 biopsy specimens. The ALK controls in liquid form (CLFs) applied in an automated way showed a more regular circular shape and better cell distribution than those applied manually. In addition, the novel controls can show changes in the same pattern as tissue controls under different antibody concentrations and antigen retrieval conditions. The automated solution for ALK IHC quality control management provides a convenient solution without the consumption of scarce tissue for IHC testing in day-to-day pathology practice. The availability of standardized protocols for the detection of ALK rearrangements using the BP6165 concentrated antibody on the LYNX480 PLUS platform will expand the number of laboratories that can reliably and consistently determine the eligibility of patients with lung adenocarcinoma for treatment with ALK tyrosine kinase inhibitors.

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来源期刊

Pathology & Oncology Research 医学-病理学

CiteScore

6.30

自引率

0.00%

发文量

134

审稿时长

4-8 weeks

期刊介绍： Pathology & Oncology Research (POR) is an interdisciplinary Journal at the interface of pathology and oncology including the preclinical and translational research, diagnostics and therapy. Furthermore, POR is an international forum for the rapid communication of reviews, original research, critical and topical reports with excellence and novelty. Published quarterly, POR is dedicated to keeping scientists informed of developments on the selected biomedical fields bridging the gap between basic research and clinical medicine. It is a special aim for POR to promote pathological and oncological publishing activity of colleagues in the Central and East European region. The journal will be of interest to pathologists, and a broad range of experimental and clinical oncologists, and related experts. POR is supported by an acknowledged international advisory board and the Arányi Fundation for modern pathology.