Amplified suspension magnetic bead-based assay for sensitive detection of anti-glycan antibodies as potential cancer biomarkers.
Anal Chim Acta
; 1195: 339444, 2022 Feb 22.
Article
em En
| MEDLINE
| ID: mdl-35090648
ABSTRACT
The development of a novel SUspension Magnetic-Bead-based Assay (SUMBA) for the detection of antibodies against aberrant glycans (AGA) as potential cancer biomarkers is presented here. The SUMBA method was extensively optimised by choosing proper commercially available AGA able to specifically, and with high affinity, recognise aberrant glycans, which were attached to the protein backbone working as a molecular scaffold (a glycoconjugate). The whole SUMBA was optimised using several analytical techniques such as Surface Plasmon Resonance and Energy Dispersive X-ray Spectroscopy. Additionally, the SUMBA method was extensively optimised for signal enhancement. With all steps optimised, we were able to detect AGA ultrasensitively with a limit of detection of 0.45 pM. Moreover, AGA could be detected in serum samples with a recovery index in the range of 98%-104%.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Biomarcadores Tumorais
/
Neoplasias
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article