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An up-conversion fluorescence lateral-flow immunoassay for rapid detection of Daratumumab in serum protein electrophoresis clinical samples.
Liu, Yajing; Tao, Yanru; Yeung, Priscilla S-W; Lu, Mengyan; Liu, Jing; Yu, Fang; Shi, Run-Zhang; Luo, Ruben Yiqi.
Afiliación
  • Liu Y; Department of Pathology, School of Medicine, Stanford University, Stanford, CA, USA.
  • Tao Y; Polariton Life Technologies, Suzhou, Jiangsu, China.
  • Yeung PS; Department of Pathology, School of Medicine, Stanford University, Stanford, CA, USA; Clinical Laboratories, Stanford Health Care, Palo Alto, CA, USA.
  • Lu M; Polariton Life Technologies, Suzhou, Jiangsu, China.
  • Liu J; Polariton Life Technologies, Suzhou, Jiangsu, China.
  • Yu F; Polariton Life Technologies, Suzhou, Jiangsu, China.
  • Shi RZ; Department of Pathology, School of Medicine, Stanford University, Stanford, CA, USA; Clinical Laboratories, Stanford Health Care, Palo Alto, CA, USA.
  • Luo RY; Department of Pathology, School of Medicine, Stanford University, Stanford, CA, USA; Clinical Laboratories, Stanford Health Care, Palo Alto, CA, USA. Electronic address: rubenluo@stanford.edu.
Clin Chim Acta ; 559: 119677, 2024 Jun 01.
Article en En | MEDLINE | ID: mdl-38636694
ABSTRACT

BACKGROUND:

Daratumumab (DARA) is a commonly used monoclonal antibody (mAb) drug for the treatment of multiple myeloma (MM). Its appearance as a visible abnormal band in the γ-region of a serum protein electrophoresis (SPEP) gel may interfere with the SPEP result interpretation. With the advantages of portability and rapid testing capabilities, up-conversion fluorescence lateral-flow immunoassay (LFA) can be an ideal solution to detect DARA interference.

METHODS:

An up-conversion fluorescence LFA strip was designed and constructed to perform semi-quantitative DARA testing in clinical samples. The LFA strip test was evaluated for limit of detection (LOD), dynamic range, and analytical interference.

RESULTS:

To demonstrate the clinical utility of the LFA strip, 43 SPEP-positive patient serum samples were tested for the presence of DARA, and the results exactly matched the DARA usage history in patient medical records.

CONCLUSIONS:

The performance of the up-conversion fluorescence LFA strip meets the purpose of clarifying DARA interference in SPEP results. It may be used as an independent and objective confirmation of the presence of DARA in clinical samples. The LFA strip offers a cost-effective rapid on-site test to check for DARA interference alongside standard SPEP equipment, which significantly improves the interpretation of ambiguous SPEP results involving DARA, and does not intervene the current SPEP workflow in clinical laboratory practice.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Anticuerpos Monoclonales Límite: Humans Idioma: En Revista: Clin Chim Acta Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Anticuerpos Monoclonales Límite: Humans Idioma: En Revista: Clin Chim Acta Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Países Bajos