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Wang L, Huang C, Lin W, Zhou Z, Li J, Chen M, Zhang L, Ye Y. EIF3B affects the invasion and metastasis of hepatocellular carcinoma cells via the TGFBI/MAPK/ERK pathway. Ann Hepatol 2024:101564. [PMID: 39276983 DOI: 10.1016/j.aohep.2024.101564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 06/26/2024] [Accepted: 07/17/2024] [Indexed: 09/17/2024]
Abstract
INTRODUCTION AND OBJECTIVES To study the effect of eukaryotic initiation factor 3B (EIF3B) on the invasion and migration of hepatocellular carcinoma (HCC) and its potential mechanism. MATERIALS AND METHODS The clinical significance of EIF3B expression was studied with The Cancer Genome Atlas (TCGA) and Gene Expression Profiling Interaction Analysis datasets. Immunohistochemical staining and western blotting were used to examine EIF3B expression in cell lines and tissues from HCC patients. The scratch assay and transwell assay were used to measure the invasion and metastasis of different HCC cell lines in vitro. The molecular mechanism of EIF3B was determined using RNA-seq and identification of dysregulated signaling pathways. Western blotting was used to verify the alterations of EIF3B signaling functioned in the promotion of HCC progression. RESULTS Elevated expression of EIF3B in HCC correlated significantly with aggressive clinicopathologic characteristics, including advanced tumor grade and poor prognosis. Studies with cultured cells indicated that EIF3B knockdown inhibited HCC cell invasion and metastasis by depressing the epithelial-mesenchymal transition (EMT). EIF3B also activated the TGFBI/MAPK/ERK signaling pathway by increasing the levels of pMEK and pERK. CONCLUSIONS Our results indicate that EIF3B functions as an oncogene in HCC that accelerates cell invasion, metastasis, and the EMT by stimulation of the TGFBI/MAPK/ERK signaling pathway. EIF3B is a potential target for the treatment of HCC.
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Affiliation(s)
- Ling Wang
- Laboratory of Immuno-Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014,China; Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China
| | - Chuanzhong Huang
- Laboratory of Immuno-Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014,China; Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China
| | - Wansong Lin
- Laboratory of Immuno-Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014,China; Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China
| | - Zhifeng Zhou
- Laboratory of Immuno-Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014,China; Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China
| | - Jieyu Li
- Laboratory of Immuno-Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014,China; Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China
| | - Mingshui Chen
- Laboratory of Immuno-Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014,China; Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China
| | - Lingyu Zhang
- Laboratory of Immuno-Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014,China; Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China
| | - Yunbin Ye
- Laboratory of Immuno-Oncology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou 350014,China; Fujian Key Laboratory of Translational Cancer Medicine, Fuzhou 350014, China.
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Huang R, Nie W, Mi L, Yao C, Zhu H. EIF3B stabilizes PCNA by counteracting SYVN1-mediated ubiquitination to serve as a promotor in cholangiocarcinoma. Aging (Albany NY) 2024; 16:7311-7330. [PMID: 38687509 PMCID: PMC11087095 DOI: 10.18632/aging.205759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 03/05/2024] [Indexed: 05/02/2024]
Abstract
Cholangiocarcinoma, a prevalent hepatic malignancy, exhibits a progressively rising incidence. While Eukaryotic translation initiation factor 3 subunit B (EIF3B) has been implicated in the occurrence and development of various cancers, its specific roles in cholangiocarcinoma remain unexplored. Immunohistochemical (IHC) analysis was employed to detect EIF3B/PCNA expression in cholangiocarcinoma. Cells were manipulated using short hairpin RNA (shRNA)-mediated lentiviruses or overexpression plasmids. Statistical significance was assessed using the Student's t-test and one-way ANOVA, with P < 0.05 considered statistically significant. EIF3B exhibited robust expression in cholangiocarcinoma, demonstrating a significant correlation with the pathological grade of cholangiocarcinoma patients. Furthermore, modulation of EIF3B expression, either depletion or elevation, demonstrated the ability to inhibit or enhance cholangiocarcinoma cell survival and migration in vitro. Mechanistically, we identified Proliferating Cell Nuclear Antigen (PCNA) as a downstream gene of EIF3B, driving cholangiocarcinoma. EIF3B stabilized PCNA by inhibiting PCNA ubiquitination, a process mediated by E3 ligase SYVN1. Similar to EIF3B, PCNA levels were also abundant in cholangiocarcinoma, and knocking down PCNA impeded cholangiocarcinoma development. Intriguingly, silencing PCNA attenuated the promotion induced by EIF3B overexpression. Furthermore, the elevated P21 protein level in shEIF3B RBE cells was partially attenuated after UC2288 (P21 signaling pathway inhibitor) treatment. Our findings underscored the potential of EIF3B as a therapeutic target for cholangiocarcinoma. Unraveling its functions holds promise for the development of more specific and effective targeted therapy strategies.
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Affiliation(s)
- Ranglang Huang
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of the Central South University, Changsha 400013, Hunan, P.R. China
| | - Wanpin Nie
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of the Central South University, Changsha 400013, Hunan, P.R. China
| | - Liangliang Mi
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of the Central South University, Changsha 400013, Hunan, P.R. China
| | - Chenjiao Yao
- Department of General Medicine, Third Xiangya Hospital, Central South University, Changsha 400013, Hunan, P.R. China
| | - Haixia Zhu
- Department of General Medicine, Third Xiangya Hospital, Central South University, Changsha 400013, Hunan, P.R. China
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Han Z, Yi X, Li J, Zhang T, Liao D, You J, Ai J. RNA m 6A modification in prostate cancer: A new weapon for its diagnosis and therapy. Biochim Biophys Acta Rev Cancer 2023; 1878:188961. [PMID: 37507057 DOI: 10.1016/j.bbcan.2023.188961] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/21/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023]
Abstract
Prostate cancer (PCa) is the most common malignant tumor and the second leading cause of cancer-related mortality in men worldwide. Despite significant advances in PCa therapy, the underlying molecular mechanisms have yet to be fully elucidated. Recently, epigenetic modification has emerged as a key player in tumor progression, and RNA-based N6-methyladenosine (m6A) epigenetic modification was found to be crucial. This review summarizes comprehensive state-of-art mechanisms underlying m6A modification, its implication in the pathogenesis, and advancement of PCa in protein-coding and non-coding RNA contexts, its relevance to PCa immunotherapy, and the ongoing clinical trials for PCa treatment. This review presents potential m6A-based targets and paves a new avenue for diagnosing and treating PCa, providing new guidelines for future related research through a systematic review of previous results.
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Affiliation(s)
- Zeyu Han
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, 88 South Keyuan Road, Chengdu 610041, China
| | - Xianyanling Yi
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, 88 South Keyuan Road, Chengdu 610041, China
| | - Jin Li
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, 88 South Keyuan Road, Chengdu 610041, China
| | - Tianyi Zhang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, 88 South Keyuan Road, Chengdu 610041, China
| | - Dazhou Liao
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, 88 South Keyuan Road, Chengdu 610041, China
| | - Jia You
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, 88 South Keyuan Road, Chengdu 610041, China
| | - Jianzhong Ai
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, 88 South Keyuan Road, Chengdu 610041, China.
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Fang P, Han Y, Qu Y, Wang X, Zhang Y, Zhang W, Zhang N, Li G, Ma W. EIF3B stabilizes PTGS2 expression by counteracting MDM2-mediated ubiquitination to promote the development and progression of malignant melanoma. Cancer Sci 2022; 113:4181-4192. [PMID: 36050601 DOI: 10.1111/cas.15543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 08/05/2022] [Accepted: 08/10/2022] [Indexed: 12/15/2022] Open
Abstract
Malignant melanoma (MM) is a neoplasm that develops from human melanocytes. It was reported that eukaryotic translation initiation factor 3 subunit B (EIF3B) is associated with multiple types of cancers, but its role in MM has not been reported. In the present study, we found that EIF3B was abundantly expressed in MM and was strongly related to lymphatic metastasis and pathological stage of MM patients. In addition, EIF3B depletion could block the progression of MM in vitro and in vivo. In contrast, EIF3B overexpression increased cell proliferation and migration in melanoma cells. More importantly, we identified that EIF3B's driver role in MM was mediated by PTGS2. In detail, we found that EIF3B stabilized PTGS2 expression by inhibiting PTGS2 ubiquitination, which is mediated by the E3 ligase MDM2. Moreover, like EIF3B, silencing PTGS2 could suppress MM development, and more interestingly, it could reverse the situation caused by overexpression of EIF3B in vitro and in vivo. Furthermore, the proliferation and migration inhibited by silencing of EIF3B were also partially recovered by overexpression of PTGS2. Overall, our findings revealed the potential of EIF3B as a therapeutic target for MM. Identification of EIF3B's function in MM may pave the way for future development of more specific and more effective targeted therapy strategies against MM.
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Affiliation(s)
- Pengli Fang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yikai Han
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanhong Qu
- Oncology Department of Laiyang People's Hospital, Laiyang, China
| | - Xin Wang
- Department of Radiotherapy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yong Zhang
- Department of Cancer Biotherapy Center, Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, China
| | - Wei Zhang
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Na Zhang
- Department of Dermatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guangshuai Li
- Department of Plastic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wang Ma
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Wan H, Feng Y, Wu J, Zhu L, Mi Y. Functions and mechanisms of N6‑methyladenosine in prostate cancer (Review). Mol Med Rep 2022; 26:280. [PMID: 35856412 PMCID: PMC9364137 DOI: 10.3892/mmr.2022.12796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 06/30/2022] [Indexed: 11/17/2022] Open
Abstract
Prostate cancer (PCa) has long been a major public health problem affecting men worldwide. Even with treatment, it can develop into castration-resistant PCa. With the continuous advancement in epigenetics, researchers have explored N6-methyladenosine (m6A) in search of a more effective and lasting treatment for PCa. m6A is widely distributed in mammalian cells and influences various aspects of mRNA metabolism. Recently, it has been associated with the development or suppression of various types of cancer, including PCa. This review summarizes the recent findings on m6A regulation and its functions and mechanisms in cells, focusing on the various functional proteins operating within m6A in PCa cells. Moreover, the potential clinical value of exploiting m6A modification as an early diagnostic marker in PCa diagnosis and therapeutics was discussed. m6A may also be used as an indicator to evaluate treatment outcome and prognosis.
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Affiliation(s)
- Hongyuan Wan
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu 214122, P.R. China
| | - Yanyan Feng
- Wuxi Medical College, Jiangnan University, Wuxi, Jiangsu 214122, P.R. China
| | - Junjie Wu
- Department of Burns and Plastic Surgery, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214122, P.R. China
| | - Lijie Zhu
- Department of Urology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214122, P.R. China
| | - Yuanyuan Mi
- Department of Urology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214122, P.R. China
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Cytotoxic Fractions from Hechtia glomerata Extracts and p-Coumaric Acid as MAPK Inhibitors. Molecules 2021; 26:molecules26041096. [PMID: 33669666 PMCID: PMC7922350 DOI: 10.3390/molecules26041096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 02/06/2021] [Accepted: 02/13/2021] [Indexed: 12/24/2022] Open
Abstract
Preliminary bioassay-guided fractionation was performed to identify cytotoxic compounds from Hechtia glomerata, a plant that is used in Mexican ethnomedicine. Organic and aqueous extracts were prepared from H. glomerata’s leaves and evaluated against two cancer cell lines. The CHCl3/MeOH (1:1) active extract was fractionated, and the resulting fractions were assayed against prostate adenocarcinoma PC3 and breast adenocarcinoma MCF7 cell lines. Active fraction 4 was further analyzed by high-performance liquid chromatography–quadrupole time-of-flight–mass spectrometry analysis to identify its active constituents. Among the compounds that were responsible for the cytotoxic effects of this fraction were flavonoids, phenolic acids, and aromatic compounds, of which p-coumaric acid (p-CA) and its derivatives were abundant. To understand the mechanisms that underlie p-CA cytotoxicity, a microarray assay was performed on PC3 cells that were treated or not with this compound. The results showed that mitogen-activated protein kinases (MAPKs) that regulate many cancer-related pathways were targeted by p-CA, which could be related to the reported effects of reactive oxygen species (ROS). A molecular docking study of p-CA showed that this phenolic acid targeted these protein active sites (MAPK8 and Serine/Threonine protein kinase 3) at the same binding site as their inhibitors. Thus, we hypothesize that p-CA produces ROS, directly affects the MAPK signaling pathway, and consequently causes apoptosis, among other effects. Additionally, p-CA could be used as a platform for the design of new MAPK inhibitors and re-sensitizing agents for resistant cancers.
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