Detection of parathyroid hormone-like hormone in cancer cell cultures by gold nanoparticle-based lateral flow immunoassays
Chamorro García, Alejandro (Institut Català de Nanociència i Nanotecnologia)
De La Escosura-Muñiz, Alfredo (Institut Català de Nanociència i Nanotecnologia)
Espinoza Castañeda, Marisol (Institut Català de Nanociència i Nanotecnologia)
Rodríguez-Hernández, Carlos J. (Hospital Sant Joan de Déu (Manresa))
De Torres, Carmen (Hospital Sant Joan de Déu (Manresa))
Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)

Date:	2016
Abstract:	Parathyroid hormone-like hormone (PTHLH) exerts relevant roles in progression and dissemination of several tumors. However, factors influencing its production and secretion have not been fully characterized. The main limitation is the lack of specific, sensitive and widely available techniques to detect and quantify PTHLH. We have developed a lateral flow immunoassay using gold nanoparticles label for the fast and easy detection of PTHLH in lysates and culture media of three human cell lines (HaCaT, LA-N-1, SK-N-AS). Levels in culture media and lysates ranged from 11 to 20 ng/mL and 0. 66 to 0. 87 μg/mL respectively. Results for HaCaT are in agreement to the previously reported, whereas LA-N-1 and SK-N-AS have been evaluated for the first time. The system also exhibits good performance in human serum samples. This methodology represents a helpful tool for future in vitro and in vivo studies of mechanisms involved in PTHLH production as well as for diagnostics. From the Clinical Editor: Parathyroid Hormone-like Hormone (PTHLH) is known to be secreted by some tumors. However, the detection of this peptide remains difficult. The authors here described their technique of using gold nanoparticles as label for the detection of PTHLH by Lateral-flow immunoassays (LFIAs). The positive results may also point a way to using the same technique for the rapid determination of other relevant cancer proteins.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	HaCaT ; LA-N-1 ; Lateral flow immunoassay (LFIA) ; Parathyroid hormone-like hormone (PTHLH) ; SK-N-AS
Published in:	Nanomedicine, Vol. 12, Issue 1 (January 2016) , p. 53-61, ISSN 1549-9642

DOI: 10.1016/j.nano.2015.09.012

Post-print 23 p, 409.2 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles