A clinical biomarker assay to quantitate CXCL9 in human serum.

IF 2.6 4区 工程技术 Q3 BIOCHEMICAL RESEARCH METHODS
BioTechniques Pub Date : 2025-11-01 Epub Date: 2026-01-29 DOI:10.1080/07366205.2026.2618960
Lucia Franco-Dilone, Oitak Allen Wong, Omar F Laterza, Xuemei Zhao
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引用次数: 0

Abstract

To assess circulating CXCL9 as an exploratory biomarker in clinical studies, an electrochemiluminescence CXCL9 assay was validated in human serum to define assay conditions that can remove matrix effect, improve precision and accuracy, as well as establish sensitivity and reportable range. The validated assay demonstrates ultra-sensitivity with a lower limit of quantification of 1.64 pg/mL in human serum. This assay exhibits optimal precision and accuracy. In addition, biological variability and CXCL9 stability in human serum were also assessed. The validated assay is an exploratory clinical biomarker assay that enables assessment of CXCL9 as an exploratory pharmacodynamic or predictive marker that correlates with clinical response in clinical studies.

定量测定人血清中CXCL9的临床生物标志物试验。
为了评估循环中的CXCL9作为临床研究中的探索性生物标志物,在人血清中验证了电化学发光CXCL9测定,以确定可以消除基质效应,提高精度和准确性,以及建立灵敏度和报告范围的测定条件。经验证的方法具有超灵敏度,定量下限为人血清1.64 pg/mL。该方法具有最佳的精密度和准确性。此外,还评估了人血清中CXCL9的生物学变异性和稳定性。经过验证的检测是一种探索性临床生物标志物检测,可以评估CXCL9作为与临床研究中临床反应相关的探索性药效学或预测性标志物。
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来源期刊
BioTechniques
BioTechniques 工程技术-生化研究方法
CiteScore
4.40
自引率
0.00%
发文量
68
审稿时长
3.3 months
期刊介绍: BioTechniques is a peer-reviewed, open-access journal dedicated to publishing original laboratory methods, related technical and software tools, and methods-oriented review articles that are of broad interest to professional life scientists, as well as to scientists from other disciplines (e.g., chemistry, physics, computer science, plant and agricultural science and climate science) interested in life science applications for their technologies. Since 1983, BioTechniques has been a leading peer-reviewed journal for methods-related research. The journal considers: Reports describing innovative new methods, platforms and software, substantive modifications to existing methods, or innovative applications of existing methods, techniques & tools to new models or scientific questions Descriptions of technical tools that facilitate the design or performance of experiments or data analysis, such as software and simple laboratory devices Surveys of technical approaches related to broad fields of research Reviews discussing advancements in techniques and methods related to broad fields of research Letters to the Editor and Expert Opinions highlighting interesting observations or cautionary tales concerning experimental design, methodology or analysis.
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