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Chau HF, Wu Y, Fok WY, Thor W, Cho WCS, Ma P, Lin J, Mak NK, Bünzli JCG, Jiang L, Long NJ, Lung HL, Wong KL. Lanthanide-Based Peptide-Directed Visible/Near-Infrared Imaging and Inhibition of LMP1. JACS AU 2021; 1:1034-1043. [PMID: 34467347 PMCID: PMC8395644 DOI: 10.1021/jacsau.1c00187] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Indexed: 06/13/2023]
Abstract
A lanthanide-based peptide-directed bioprobe LnP19 (Ln = Eu or Yb) is designed as an impressive example of a small molecule-based dual-functional probe for the EBV oncoprotein LMP1. The peptide P19 (Pra-KAhx-K-LDLALK-FWLY-K-IVMSDKW-K-RrRK) is designed to selectively bind to LMP1 by mimicking its TM1 region during oligomerization in lipid rafts while signal transduction is significantly suppressed. Immunofluorescence imaging and Western blotting results reveal that P19 can effectively inactivate the oncogenic cellular pathway nuclear factor κB (NF-κB) and contribute to a selective cytotoxic effect on LMP1-positive cells. By conjugation with cyclen-based europium(III) and ytterbium(III) complexes, EuP19 and YbP19 were constructed to offer visible and near-infrared LMP1-targeted imaging and cancer monitoring. In addition to the ability to target and inhibit LMP1 and to selective inhibit LMP1-positive cells, selective growth inhibition toward the LMP1-positive tumor by LnP19 is also demonstrated.
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Affiliation(s)
- Ho-Fai Chau
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Yue Wu
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Wan-Yiu Fok
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Waygen Thor
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - William Chi-Shing Cho
- Department
of Clinical Oncology, Queen Elizabeth Hospital,
Kowloon, Hong Kong SAR, China
| | - Ping’an Ma
- State
Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Jun Lin
- State
Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Nai-Ki Mak
- Department
of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Jean-Claude G. Bünzli
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
- ISIC, Swiss Federal Institute of Technology (EPFL), CH-1015 Lausanne, Switzerland
| | - Lijun Jiang
- Department
of Applied Biological and Chemical Technology, Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Nicholas J. Long
- Department
of Chemistry, Imperial College London, Molecular Sciences Research Hub,
White City Campus, Wood Lane, London W12 0BZ, United Kingdom
| | - Hong Lok Lung
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Ka-Leung Wong
- Department
of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
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He G, Ma Y, Zhu Y, Yong L, Liu X, Wang P, Liang C, Yang C, Zhao Z, Hai B, Pan X, Liu Z, Liu X, Mao C. Cross Talk Between Autophagy and Apoptosis Contributes to ZnO Nanoparticle-Induced Human Osteosarcoma Cell Death. Adv Healthc Mater 2018; 7:e1800332. [PMID: 29900694 PMCID: PMC6310009 DOI: 10.1002/adhm.201800332] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/18/2018] [Indexed: 12/13/2022]
Abstract
Killing osteosarcoma cells by zinc oxide nanoparticles (NPs) and its underlying subcellular mechanism are never studied. Here, it is found that the NPs induce cross talk between apoptosis and autophagy, which leads to osteosarcoma cell death. Specifically, the NP uptake promotes autophagy by inducing accumulation of autophagosomes along with impairment of lysosomal functions. The autophagy further causes the uptaken NPs to release zinc ions by promoting their dissolution. These intracellular zinc ions, together with those that are originally released from the extracellular NPs and flowed into the cells, collectively target and damage mitochondria to produce reactive oxygen species (ROS). Then the ROS inhibit cell proliferation by arresting S phase and trigger apoptosis by extrinsic and intrinsic pathways, ultimately leading to cell death. More importantly, suppression of the early stage autophagy restores cell viability by abolishing apoptosis whereas blockade of the late stage autophagy inversely enhances apoptosis. In contrast, inhibition of apoptosis shows a limited ability to restore cell viability but obviously enhance autophagy. Notably, cell viability is strongly ameliorated by the combination of inhibitors for both the late stage autophagy and the apoptosis. These findings provide a mechanistic understanding of the NP-directed autophagy and apoptosis in osteosarcoma cells.
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Affiliation(s)
- Guanping He
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Yunlong Ma
- The Center for Pain Medicine, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Ye Zhu
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, Oklahoma 73019, USA
| | - Lei Yong
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Xiao Liu
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Peng Wang
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Chen Liang
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Chenlong Yang
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Zhigang Zhao
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Bao Hai
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Xiaoyu Pan
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Zhongjun Liu
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Xiaoguang Liu
- Department of Orthopedics, Peking University Third Hospital, No. 49, North Garden Street, Haidian District, Beijing 100191, China
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, Oklahoma 73019, USA
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Ji H, Guan Y, Wu L, Ren J, Miyoshi D, Sugimoto N, Qu X. A fluorescent probe for detection of an intracellular prognostic indicator in early-stage cancer. Chem Commun (Camb) 2015; 51:1479-82. [PMID: 25493923 DOI: 10.1039/c4cc08789e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Cyclin A2 is a promising cancer prognostic indicator, but its intracellular in situ imaging is still a challenging task. This work designs an "off-on" fluorescent probe, which can fluorescently detect intracellular cyclin A2 and distinguish cancer cells. In addition, this work sheds light on the development of future protein biosensors.
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Affiliation(s)
- Haiwei Ji
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
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