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Multiplexed electro...
Multiplexed electrokinetic sensor for detection and therapy monitoring of extracellular vesicles from liquid biopsies of non-small-cell lung cancer patients
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- Cavallaro, Sara (author)
- KTH,Fotonik,KTH Royal Inst Technol, Sch Engn Sci, Dept Appl Phys, S-10691 Stockholm, Sweden.
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- Hååg, Petra (author)
- Karolinska Institutet
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- Sahu, Siddharth S. (author)
- Uppsala universitet,Fasta tillståndets elektronik
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- Berisha, Lorenca (author)
- Politecn Torino, I-10129 Turin, Italy.
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- Kaminskyy, Vitaliy O. (author)
- Karolinska Institutet
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- Ekman, Simon (author)
- Karolinska Institutet
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- Lewensohn, Rolf (author)
- Karolinska Institutet
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- Linnros, Jan, 1953- (author)
- KTH,Fotonik,KTH Royal Inst Technol, Sch Engn Sci, Dept Appl Phys, S-10691 Stockholm, Sweden.
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- Viktorsson, Kristina (author)
- Karolinska Institutet
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- Dev, Apurba (author)
- KTH,Uppsala universitet,Fasta tillståndets elektronik,KTH Royal Inst Technol, Sch Engn Sci, Dept Appl Phys, S-10691 Stockholm, Sweden,Fotonik
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- English.
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In: Biosensors & bioelectronics. - : Elsevier. - 0956-5663 .- 1873-4235. ; 193
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Abstract
Subject headings
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- Liquid biopsies based on extracellular vesicles (EVs) represent a promising tool for treatment monitoring of tumors, including non-small-cell lung cancers (NSCLC). In this study, we report on a multiplexed electrokinetic sensor for surface protein profiling of EVs from clinical samples. The method detects the difference in the streaming current generated by EV binding to the surface of a functionalized microcapillary, thereby estimating the expression level of a marker. Using multiple microchannels functionalized with different antibodies in a parallel fluidic connection, we first demonstrate the capacity for simultaneous detection of multiple surface markers in small EVs (sEVs) from NSCLC cells. To investigate the prospects of liquid biopsies based on EVs, we then apply the method to profile sEVs isolated from the pleural effusion (PE) fluids of five NSCLC patients with different genomic alterations (ALK, KRAS or EGFR) and applied treatments (chemotherapy, EGFR- or ALKtyrosine kinase inhibitors). The vesicles were targeted against CD9, as well as EGFR and PD-L1, two treatment targets in NSCLC. The electrokinetic signals show detection of these markers on sEVs, highlighting distinct interpatient differences, e.g., increased EGFR levels in sEVs from a patient with EGFR mutation as compared to an ALK-fusion one. The sensors also detect differences in PD-L1 expressions. The analysis of sEVs from a patient prior and post ALK-TKI crizotinib treatment reveals significant increases in the expressions of some markers (EGFR and PD-L1). These results hold promise for the application of the method for tumor treatment monitoring based on sEVs from patient liquid biopsies.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering (hsv//eng)
Keyword
- Electrokinetic sensor
- Multiplexing
- Extracellular vesicles
- Non-small-cell lung cancer
- Liquid biopsy
- Treatment monitoring
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Cavallaro, Sara
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Hååg, Petra
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Sahu, Siddharth ...
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Berisha, Lorenca
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Kaminskyy, Vital ...
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Ekman, Simon
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Lewensohn, Rolf
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Linnros, Jan, 19 ...
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Viktorsson, Kris ...
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Dev, Apurba
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Basic Medicine
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and Cell and Molecul ...
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Cancer and Oncol ...
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Biosensors & bio ...
- By the university
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Uppsala University
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Royal Institute of Technology
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Karolinska Institutet