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Microfluidic Device-Based In Vivo Detection of PD-L1-Positive Small Extracellular Vesicles and Its Application for Tumor Monitoring.
Cong, Xi-Zhu; Feng, Jiao; Zhang, He-Jing; Zhang, Lin-Zhou; Lin, Tian-Yang; Chen, Gang; Zhang, Zhi-Ling.
Afiliación
  • Cong XZ; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China.
  • Feng J; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China.
  • Zhang HJ; The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, P. R. China.
  • Zhang LZ; The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, P. R. China.
  • Lin TY; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China.
  • Chen G; The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, P. R. China.
  • Zhang ZL; College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China.
Anal Chem ; 96(6): 2658-2665, 2024 02 13.
Article en En | MEDLINE | ID: mdl-38311857
ABSTRACT
Liquid biopsy is of great significance in tumor early diagnosis and treatment stratification. PD-L1-positive small extracellular vesicles (PD-L1+ sEVs) are closely related to tumor growth and immunotherapy response, which are considered valuable liquid biopsy biomarkers. In contrast to conventional in vitro detection, in vivo detection has the ability to improve the detection efficiency and enable continuous or real-time dynamic monitoring. However, in vivo detection of PD-L1+ sEVs has multiple difficulties, such as high cell background, complex blood environments, and lack of a specific and stable detection method. Herein, the in vivo detection of PD-L1+ sEVs method was constructed, which efficiently separated sEVs based on the microfluidic device and quantitatively analyzed PD-L1+ sEVs by aptamer recognition and hybridization chain reaction. The concentration of PD-L1+ sEVs was continuously monitored, and significant differences at different stages of tumor as well as a correlation with tumor volume were found. Diseased and healthy individuals could also be effectively distinguished based on the concentration of PD-L1+ sEVs. The method with good stability, biocompatibility, and detection performance provided a powerful means for in vivo detection of PD-L1+ sEVs, contributing to the clinical diagnosis and treatment of tumor.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vesículas Extracelulares / Neoplasias Tipo de estudio: Diagnostic_studies / Screening_studies Límite: Humans Idioma: En Revista: Anal Chem Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vesículas Extracelulares / Neoplasias Tipo de estudio: Diagnostic_studies / Screening_studies Límite: Humans Idioma: En Revista: Anal Chem Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos