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Kang J, Ai Q, Zhao A, Wang H, Zhang X, Liu Y, Zhang L, Liu Y. Neurotoxicological mechanisms of carbon quantum dots in a new animal model Dugesia japonica. Ecotoxicology 2023; 32:711-719. [PMID: 37386302 DOI: 10.1007/s10646-023-02671-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/25/2023] [Indexed: 07/01/2023]
Abstract
As luminescent nanomaterials, the carbon quantum dots (CQDs) research focused on emerging applications since their discovery. However, their toxicological effects on the natural environment are still unclear. The freshwater planarian Dugesia japonica is distributed extensively in aquatic ecosystems and can regenerate a new brain in 5 days after amputation. Therefore it can be used as a new model organism in the field of neuroregeneration toxicology. In our study, D. japonica was cut and incubated in medium treated with CQDs. The results showed that the injured planarian lost the neuronal ability of brain regeneration after treatment with CQDs. Its Hh signalling system was interfered with at Day 5, and all cultured pieces died on or before Day 10 due to head lysis. Our work reveals that CQDs might affect the nerve regeneration of freshwater planarians via the Hh signalling pathway. The results of this study improve our understanding of CQD neuronal development toxicology and can aid in the development of warning systems for aquatic ecosystem damage.
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Affiliation(s)
- Jing Kang
- College of Life Science, Xinxiang Medical University, Xinxiang, China.
- College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, China.
| | - Qing Ai
- College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, China
| | - Ang Zhao
- College of Life Science, Xinxiang Medical University, Xinxiang, China
| | - Haijiao Wang
- College of Life Science, Xinxiang Medical University, Xinxiang, China
| | - Xiangpeng Zhang
- Third Affiliated Hospital, Xinxiang Medical University, Xinxiang, China
| | - Yanli Liu
- College of Life Science, Xinxiang Medical University, Xinxiang, China
| | | | - Yuqing Liu
- College of Life Science, Xinxiang Medical University, Xinxiang, China.
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Gu Y, Pei X, Ren Y, Cai K, Guo K, Chen J, Qin W, Lin M, Wang Q, Tang N, Cheng Z, Ding Y, Lin J. Oncogenic function of TUSC3 in non-small cell lung cancer is associated with Hedgehog signalling pathway. Biochim Biophys Acta Mol Basis Dis 2017; 1863:1749-1760. [PMID: 28487226 DOI: 10.1016/j.bbadis.2017.05.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 05/03/2017] [Accepted: 05/05/2017] [Indexed: 12/14/2022]
Abstract
Non-small cell lung cancer (NSCLC) represents 75-80% of all lung carcinomas, which is the most common cause of death from cancer. Tumour suppressor candidate 3 (TUSC3) is pivotal in many biochemical functions and cytological processes. Dis-regulation of TUSC3 is frequently observed in epithelial cancers. In this study, we observed up-regulated TUSC3 expression at the mRNA and protein levels in clinical NSCLC samples compared with adjacent non-tumorous lung tissues. The expression level of TUSC3 is significantly correlated with tumour metastasis and patient survival. Overexpression of TUSC3 in NSCLC cells led to increased proliferation, migration, and invasion in vitro and accelerated xenograft tumour growth in vivo, while the opposite effects were achieved in TUSC3-silenced cells. Increased GLI1, SMO, PTCH1, and PTCH2 abundance were observed in TUSC3 overexpressed cells using western blotting. Co-immunoprecipitation and immunofluorescence analyses further revealed interaction between TUSC3 and GLI1. In conclusion, our study demonstrated an oncogenic role of TUSC3 in NSCLC and showed that dis-regulation of TUSC3 may affect tumour cell invasion and migration through possible involvement in the Hedgehog (Hh) signalling pathway.
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Affiliation(s)
- Ye Gu
- Department of Pathology, Nanfang Hospital & School of Basic Medicine, Southern Medical University, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, 1838 Guangzhou Avenue, Guangzhou 510515, PR China
| | - Xiaojuan Pei
- Department of Pathology, Nanfang Hospital & School of Basic Medicine, Southern Medical University, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Department of Pathology, Huizhou Central People's Hospital, Huizhou, Guangdong 516001, PR China
| | - Yansong Ren
- Department of Pathology, Nanfang Hospital & School of Basic Medicine, Southern Medical University, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, 1838 Guangzhou Avenue, Guangzhou 510515, PR China
| | - Kaican Cai
- Department of Thoracic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Kang Guo
- Department of Pathology, Nanfang Hospital & School of Basic Medicine, Southern Medical University, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, 1838 Guangzhou Avenue, Guangzhou 510515, PR China
| | - Jiaye Chen
- Department of Pathology, Nanfang Hospital & School of Basic Medicine, Southern Medical University, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, 1838 Guangzhou Avenue, Guangzhou 510515, PR China
| | - Weizhao Qin
- Department of Pathology, Nanfang Hospital & School of Basic Medicine, Southern Medical University, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, 1838 Guangzhou Avenue, Guangzhou 510515, PR China
| | - Mingdao Lin
- Department of Pathology, Nanfang Hospital & School of Basic Medicine, Southern Medical University, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, 1838 Guangzhou Avenue, Guangzhou 510515, PR China
| | - Qian Wang
- Department of Pathology, Nanfang Hospital & School of Basic Medicine, Southern Medical University, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, 1838 Guangzhou Avenue, Guangzhou 510515, PR China
| | - Na Tang
- Department of Pathology, Shenzhen People's Hospital, Shenzhen 510820, PR China
| | - Zhiqiang Cheng
- Department of Pathology, Shenzhen People's Hospital, Shenzhen 510820, PR China
| | - Yanqing Ding
- Department of Pathology, Nanfang Hospital & School of Basic Medicine, Southern Medical University, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, 1838 Guangzhou Avenue, Guangzhou 510515, PR China
| | - Jie Lin
- Department of Pathology, Nanfang Hospital & School of Basic Medicine, Southern Medical University, 1838 Guangzhou Avenue, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, 1838 Guangzhou Avenue, Guangzhou 510515, PR China.
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