J 2021

Electrochemical bioassay coupled to LAMP reaction for determination of high-risk HPV infection in crude lysates

IZADI, Nasim, Ravery SEBUYOYA, Ludmila MORÁŇOVÁ, Roman HRSTKA, Milan ANTON et. al.

Základní údaje

Originální název

Electrochemical bioassay coupled to LAMP reaction for determination of high-risk HPV infection in crude lysates

Autoři

IZADI, Nasim (364 Írán, garant), Ravery SEBUYOYA (834 Tanzanie, domácí), Ludmila MORÁŇOVÁ (203 Česká republika, domácí), Roman HRSTKA (203 Česká republika), Milan ANTON (203 Česká republika, domácí) a Martin BARTOŠÍK (703 Slovensko)

Vydání

Analytica Chimica Acta, Amsterdam, Elsevier, 2021, 0003-2670

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10406 Analytical chemistry

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 6.911

Kód RIV

RIV/00216224:14310/21:00122608

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000718364300003

Klíčová slova anglicky

HPV; Cervical cancer; Crude lysate; Electrochemistry; LAMP amplification

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 16. 5. 2022 11:57, Mgr. Marie Šípková, DiS.

Anotace

V originále

Electrochemical (EC) detection of DNA biomarkers represents an interesting tool in molecular oncology due to its sensitivity, simplicity, low cost or rapid times of measurement. However, majority of EC assays, same as most optical-based techniques, require preceding DNA extraction step to remove other cellular components, making these assays more laborious and time-consuming. One option to circumvent this is to use LAMP (loop-mediated amplification), an isothermal amplification technique that can amplify DNA directly in crude lysates in a short time at a constant temperature. Here, we coupled the LAMP reaction with EC readout to detect DNA from the two most common oncogenic human papillomavirus (HPV) types that cause cervical cancer in women, i.e. HPV 16 and HPV 18, directly in crude lysates without a need for DNA extraction step. We show that in crude lysates, the LAMP reaction was superior to PCR, with very good selectivity on a panel of cancer cell lines and with high sensitivity, enabling detection of HPV DNA from as few as 10 cells. As a proof of principle, we applied the assay to nineteen clinical samples both from uninfected women and from women suffering from cervical precancerous lesions caused by HPV 16 or HPV 18 genotypes. Clinical samples were simply boiled for 5 min in homogenization buffer without DNA extraction step, and amplified with LAMP. We obtained excellent concordance of our assay with PCR, reaching 100% sensitivity for both genotypes, 81.82% specificity for HPV 16 and 94.12% spec-ificity for HPV 18. Proposed assay could be a straightforward, simple, rapid and sensitive alternative for early diagnostics of precancerous cervical lesions.

Návaznosti

90125, velká výzkumná infrastruktura
Název: BBMRI-CZ III