PMID- 35715914 OWN - NLM STAT- MEDLINE DCOM- 20220621 LR - 20220621 IS - 1550-7033 (Print) IS - 1550-7033 (Linking) VI - 18 IP - 3 DP - 2022 Mar 1 TI - Photothermolysis Mediated by Gold Nanorods Conjugated with Epidermal Growth Factor Receptor (EGFR) Monoclonal Antibody Induces Apoptosis via the Mitochondrial Apoptosis Pathway in Laryngeal Squamous Cell Cancer. PG - 754-762 LID - 10.1166/jbn.2022.3272 [doi] AB - Gold nanorods (AuNRs) have unique optical properties and biological affinity and can be used to treat tumors when conjugated with other protein molecules. Our previous studies have shown that EGFR monoclonal antibody (EGFRmAb)-modified AuNRs exert strong antitumor activity in vitro by inducing apoptosis. In this study, we tested the effects of EGFRmAb-modified AuNRs on laryngeal squamous cell cancer (LSCC) in vitro and in vivo. The in vitro results showed that EGFRmAb-modified AuNRs inhibited NP-69, BEAS-2B and Hep-2 cell growth and induced mitochondria-dependent apoptosis. The mitochondrial membrane potential was reduced, leading to the release of cytochrome C (Cyt C) and consequent activation of the intrinsic mitochondrial apoptosis pathway. Moreover, we observed that the occurrence of mitochondrial apoptosis is related to the destruction of the lysosome-mitochondria axis. To verify the effects in vivo, we also established a laryngeal tumor model in nude mice by subcutaneous transplantation. In model mice treated with EGFRmAb-modified AuNRs and irradiated with an NIR laser, tumor cell apoptosis and tumor growth were inhibited. These results suggest that EGFRmAb-modified AuNRs induced apoptosis through the intrinsic mitochondrial apoptotic pathway and are a potential candidate for cancer therapy. FAU - Zhang, Shi-Wen AU - Zhang SW AD - First Department of Head and Neck Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, Yunnan, China. FAU - Wang, Hao AU - Wang H AD - First Department of Head and Neck Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, Yunnan, China. FAU - Qiu, You-Yu AU - Qiu YY AD - First Department of Head and Neck Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, Yunnan, China. FAU - Huang, Ren-Chao AU - Huang RC AD - First Department of Head and Neck Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, Yunnan, China. FAU - Dong, Zi-Chen AU - Dong ZC AD - First Department of Head and Neck Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, Yunnan, China. FAU - Zhang, Lu AU - Zhang L AD - First Department of Head and Neck Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, Yunnan, China. FAU - Zhao, Liu-Fang AU - Zhao LF AD - First Department of Head and Neck Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, Yunnan, China. FAU - Xu, Hong-Yang AU - Xu HY AD - First Department of Head and Neck Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, Yunnan, China. FAU - Sun, Wei-Di AU - Sun WD AD - First Department of Head and Neck Surgery, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, Yunnan, China. LA - eng PT - Journal Article PL - United States TA - J Biomed Nanotechnol JT - Journal of biomedical nanotechnology JID - 101230869 RN - 0 (Antibodies, Monoclonal) RN - 7440-57-5 (Gold) RN - EC 2.7.10.1 (ErbB Receptors) SB - IM MH - Animals MH - Antibodies, Monoclonal/metabolism MH - Apoptosis MH - Cell Line, Tumor MH - Epithelial Cells MH - ErbB Receptors/metabolism MH - Gold/pharmacology MH - *Head and Neck Neoplasms/metabolism MH - Mice MH - Mice, Nude MH - Mitochondria/metabolism MH - *Nanotubes MH - Squamous Cell Carcinoma of Head and Neck/drug therapy/metabolism EDAT- 2022/06/19 06:00 MHDA- 2022/06/22 06:00 CRDT- 2022/06/18 00:42 PHST- 2022/06/18 00:42 [entrez] PHST- 2022/06/19 06:00 [pubmed] PHST- 2022/06/22 06:00 [medline] AID - 10.1166/jbn.2022.3272 [doi] PST - ppublish SO - J Biomed Nanotechnol. 2022 Mar 1;18(3):754-762. doi: 10.1166/jbn.2022.3272.