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Shi F, Wu L, Cui D, Sun M, Shen Y, Zhou Z, Deng Z, Han B, Xia S, Zhu Z, Sun F. LncFALEC recruits ART5/PARP1 and promotes castration-resistant prostate cancer through enhancing PARP1-meditated self PARylation. Cell Oncol (Dordr) 2023; 46:761-776. [PMID: 36913068 DOI: 10.1007/s13402-023-00783-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2023] [Indexed: 03/14/2023] Open
Abstract
Accumulating evidence indicates that long noncoding RNAs (lncRNAs) are abnormal expression in various malignant tumors. Our previous research demonstrated that focally amplified long non-coding RNA (lncRNA) on chromosome 1 (FALEC) is an oncogenic lncRNA in prostate cancer (PCa). However, the role of FALEC in castration-resistant prostate cancer (CRPC) is poorly understood. In this study, we showed FALEC was upregulated in post-castration tissues and CRPC cells, and increased FALEC expression was associated with poor survival in post-castration PCa patients. RNA FISH demonstrated FALEC was translocated into nucleus in CRPC cells. RNA pulldown and followed Mass Spectrometry (MS) assay demonstrated FALEC directly interacted with PARP1 and loss of function assay showed FALEC depletion sensitized CRPC cells to castration treatment and restored NAD+. Specific PARP1 inhibitor AG14361 and NAD+ endogenous competitor NADP+ sensitized FALEC-deleted CRPC cells to castration treatment. FALEC increasing PARP1 meditated self PARylation through recruiting ART5 and down regulation of ART5 decreased CRPC cell viability and restored NAD+ through inhibiting PARP1meditated self PARylation in vitro. Furthermore, ART5 was indispensable for FALEC directly interaction and regulation of PARP1, loss of ART5 impaired FALEC and PARP1 associated self PARylation. In vivo, FALEC depleted combined with PARP1 inhibitor decreased CRPC cell derived tumor growth and metastasis in a model of castration treatment NOD/SCID mice. Together, these results established that FALEC may be a novel diagnostic marker for PCa progression and provides a potential new therapeutic strategy to target the FALEC/ART5/PARP1 complex in CRPC patients.
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Affiliation(s)
- Fei Shi
- Department of Urology, School of Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai, 200080, China
| | - Lei Wu
- Department of Urology, Shanghai General Hospital, Nanjing Medical University, Shanghai, 200080, China
| | - Di Cui
- Department of Urology, School of Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai, 200080, China.,Institute of Urology, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Menghao Sun
- Department of Urology, School of Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai, 200080, China
| | - Yuanhao Shen
- School of Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zheng Zhou
- Department of Urology, Shanghai General Hospital, Nanjing Medical University, Shanghai, 200080, China
| | - Zheng Deng
- Department of Urology, School of Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai, 200080, China
| | - Bangmin Han
- Department of Urology, School of Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai, 200080, China.,Institute of Urology, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Shujie Xia
- Department of Urology, School of Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai, 200080, China.,Department of Urology, Shanghai General Hospital, Nanjing Medical University, Shanghai, 200080, China.,Institute of Urology, Shanghai Jiao Tong University, Shanghai, 200080, China
| | - Zheng Zhu
- Department of Internal Medicine, Division of Hematology/Oncology, University of California Davis, Sacramento, CA, 95817, USA.
| | - Feng Sun
- Department of Urology, School of Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, 100 Haining Road, Shanghai, 200080, China. .,Institute of Urology, Shanghai Jiao Tong University, Shanghai, 200080, China.
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Bai S, Wang Z, Wang M, Li J, Wei Y, Xu R, Du J. Tumor-Derived Exosomes Modulate Primary Site Tumor Metastasis. Front Cell Dev Biol 2022; 10:752818. [PMID: 35309949 PMCID: PMC8924426 DOI: 10.3389/fcell.2022.752818] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 02/10/2022] [Indexed: 12/12/2022] Open
Abstract
Tumor-derived exosomes (TDEs) are actively produced and released by tumor cells and carry messages from tumor cells to healthy cells or abnormal cells, and they participate in tumor metastasis. In this review, we explore the underlying mechanism of action of TDEs in tumor metastasis. TDEs transport tumor-derived proteins and non-coding RNA to tumor cells and promote migration. Transport to normal cells, such as vascular endothelial cells and immune cells, promotes angiogenesis, inhibits immune cell activation, and improves chances of tumor implantation. Thus, TDEs contribute to tumor metastasis. We summarize the function of TDEs and their components in tumor metastasis and illuminate shortcomings for advancing research on TDEs in tumor metastasis.
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Affiliation(s)
- Suwen Bai
- Longgang District People´s Hospital of Shenzhen, The Second Affiliated Hospital of The Chinese University of Hong Kong, Shenzhen, China.,School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Zunyun Wang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Minghua Wang
- Longgang District People´s Hospital of Shenzhen, The Second Affiliated Hospital of The Chinese University of Hong Kong, Shenzhen, China
| | - Junai Li
- Longgang District People´s Hospital of Shenzhen, The Second Affiliated Hospital of The Chinese University of Hong Kong, Shenzhen, China
| | - Yuan Wei
- Longgang District People´s Hospital of Shenzhen, The Second Affiliated Hospital of The Chinese University of Hong Kong, Shenzhen, China
| | - Ruihuan Xu
- Longgang District People´s Hospital of Shenzhen, The Second Affiliated Hospital of The Chinese University of Hong Kong, Shenzhen, China
| | - Juan Du
- Longgang District People´s Hospital of Shenzhen, The Second Affiliated Hospital of The Chinese University of Hong Kong, Shenzhen, China
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