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131I-Caerin 1.1 and 131I-Caerin 1.9 for the treatment of non-small-cell lung cancer
Journal article   Open access   Peer reviewed

131I-Caerin 1.1 and 131I-Caerin 1.9 for the treatment of non-small-cell lung cancer

Na Liu, Tiantian He, Zewei Xiao, Juan Du, Keke Zhu, Xiongying Liu, Tongsheng Chen, Wenjuan Liu, Guoying Ni, Xiaosong Liu, …
Frontiers in Oncology, Vol.12, pp.1-13
2022
PMCID: PMC9420947
PMID: 36046040
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fonc-12-8612065.01 MBDownloadView
Published Version Open Access CC BY V4.0
url
https://doi.org/10.3389/fonc.2022.861206View
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Abstract

high-affinity peptides non-small-cell lung cancer A549 cells Caerin peptide 131I labeling
Objective: To investigate the effect of the 131I-labeled high-affinity peptides Caerin 1.1 and Caerin 1.9 for the treatment of A549 human NSCLC cells. Methods: ① 3-[4,5-Dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide (MTT) and plate clone formation assays were performed to confirm the in vitro anti-tumor activity of Caerin 1.1 and Caerin 1.9. ② Chloramine-T was used to label Caerin 1.1 and Caerin 1.9 with 131I, and the Cell Counting Kit 8 assay was performed to analyze the inhibitory effect of unlabeled Caerin 1.1, unlabeled Caerin 1.9, 131I-labeled Caerin 1.1, and 131I-labeled Caerin 1.9 on the proliferation of NSCLC cells. An A549 NSCLC nude mouse model was established to investigate the in vivo anti-tumor activity of unlabeled Caerin 1.1, unlabeled Caerin 1.9, 131I-labeled Caerin 1.1, and 131I-labeled Caerin 1.9. Results: ① Caerin 1.1 and Caerin 1.9 inhibited the proliferation of NSCLC cells in vitro in a concentration-dependent manner. The half-maximal inhibitory concentration was 16.26 µg/ml and 17.46 µg/ml, respectively, with no significant intergroup difference (P>0.05). ② 131I-labeled Caerin 1.1 and 131I-labeled Caerin 1.9 were equally effective and were superior to their unlabeled versions in their ability to inhibit the proliferation and growth of NSCLC cells (P>0.05). Conclusions: 131I-labeled Caerin 1.1 and 131I-labeled Caerin 1.9 inhibit the proliferation and growth of NSCLC cells and may become potential treatments for NSCLC.

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