Detection of parathyroid hormone-like hormone in cancer cell cultures by gold nanoparticle-based lateral flow immunoassays

详细信息    查看全文

• 作者：Alejandro Chamorro-Garcia ; MSc^a ; ^b ; Alfredo dela Escosura-Muñ ; iz ; PhD^a ; Marisol Espinosa-Castañ ; eda ; PhD^a ; Carlos J. Rodriguez-Hernandez ; PhD^b ; Carmen de Torres ; MD ; PhD^b ; Arben Merkoç ; i ; PhD^a ; ^c ; ^{arben.merkoci@icn.cat" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Parathyroid hormone-like hormone (PTHLH) ; Lateral flow immunoassay (LFIA) ; HaCaT ; LA-N-1 ; SK-N-AS
• 刊名：Nanomedicine: Nanotechnology, Biology and Medicine
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：12
• 期：1
• 页码：53-61
• 全文大小：951 K

文摘

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.