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George M, Masamba P, Iwalokun BA, Kappo AP. Zooming into the structure-function of RING finger proteins for anti-cancer therapeutic applications. Am J Cancer Res 2023; 13:2773-2789. [PMID: 37559981 PMCID: PMC10408477] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 05/22/2023] [Indexed: 08/11/2023] Open
Abstract
Cancer is one of the most common and widely diagnosed diseases worldwide. With an increase in prevalence and incidence, many studies in cancer biology have been looking at the role pro-cancer proteins play. One of these proteins is the Really Interesting New Gene (RING), which has been studied extensively due to its structure and functions such as apoptosis, neddylation, and its role in ubiquitination. The RING domain is a cysteine-rich domain known to bind Cysteine and Histidine residues. It also binds two zinc ions that help stabilize the protein in various patterns, often with a 'cross-brace' topology. Different RING finger proteins have been studied and found to have suitable targets for developing anti-cancer therapeutics. These identified candidate proteins include Parkin, COP1, MDM2, BARD1, BRCA-1, PIRH2, c-CBL, SIAH1, RBX1 and RNF8. Inhibiting these candidate proteins provides opportunities for shutting down pathways associated with tumour development and metastasis.
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Affiliation(s)
- Mary George
- Molecular Biophysics and Structural Biology (MBSB) Group, Department of Biochemistry, Faculty of Science, University of Johannesburg, Auckland Park Kingsway CampusAuckland Park, Johannesburg, South Africa
| | - Priscilla Masamba
- Molecular Biophysics and Structural Biology (MBSB) Group, Department of Biochemistry, Faculty of Science, University of Johannesburg, Auckland Park Kingsway CampusAuckland Park, Johannesburg, South Africa
| | - Bamidele Abiodun Iwalokun
- Department of Molecular Biology and Biotechnology, Nigerian Institute of Medical Research (NIMR)Yaba, Lagos, Nigeria
| | - Abidemi Paul Kappo
- Molecular Biophysics and Structural Biology (MBSB) Group, Department of Biochemistry, Faculty of Science, University of Johannesburg, Auckland Park Kingsway CampusAuckland Park, Johannesburg, South Africa
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Xu L, Wang X, Lu X, Liang F, Liu Z, Zhang H, Li X, Tian S, Wang L, Wang Z. Long-read sequencing identifies novel structural variations in colorectal cancer. PLoS Genet 2023; 19:e1010514. [PMID: 36812239 DOI: 10.1371/journal.pgen.1010514] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 03/14/2023] [Accepted: 11/08/2022] [Indexed: 02/24/2023] Open
Abstract
Structural variations (SVs) are a key type of cancer genomic alterations, contributing to oncogenesis and progression of many cancers, including colorectal cancer (CRC). However, SVs in CRC remain difficult to be reliably detected due to limited SV-detection capacity of the commonly used short-read sequencing. This study investigated the somatic SVs in 21 pairs of CRC samples by Nanopore whole-genome long-read sequencing. 5200 novel somatic SVs from 21 CRC patients (494 SVs / patient) were identified. A 4.9-Mbp long inversion that silences APC expression (confirmed by RNA-seq) and an 11.2-kbp inversion that structurally alters CFTR were identified. Two novel gene fusions that might functionally impact the oncogene RNF38 and the tumor-suppressor SMAD3 were detected. RNF38 fusion possesses metastasis-promoting ability confirmed by in vitro migration and invasion assay, and in vivo metastasis experiments. This work highlighted the various applications of long-read sequencing in cancer genome analysis, and shed new light on how somatic SVs structurally alter critical genes in CRC. The investigation on somatic SVs via nanopore sequencing revealed the potential of this genomic approach in facilitating precise diagnosis and personalized treatment of CRC.
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Akhlaghipour I, Taghehchian N, Zangouei AS, Maharati A, Mahmoudian RA, Saburi E, Moghbeli M. MicroRNA-377: A therapeutic and diagnostic tumor marker. Int J Biol Macromol 2023; 226:1226-35. [PMID: 36442575 DOI: 10.1016/j.ijbiomac.2022.11.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/15/2022] [Accepted: 11/18/2022] [Indexed: 11/26/2022]
Abstract
Cancer is considered as one of the main causes of human deaths globally. Despite the recent progresses in therapeutic modalities, there is still a high rate of mortality among cancer patients. Late diagnosis in advanced tumor stages is one of the main reasons for treatment failure in cancer patients. Therefore, it is required to suggest the novel strategies for the early tumor detection. MicroRNAs (miRNAs) have critical roles in neoplastic transformation by regulation of cell proliferation, migration, and apoptosis. They are always considered as non-invasive markers due to their high stability in body fluids. Since, all of the miRNAs have tissue-specific functions in different tumors as tumor suppressor or oncogene; it is required to investigate the molecular mechanisms of every miRNA in different tumors to introduce that as a suitable non-invasive diagnostic marker in cancer patients. For the first time in the present review, we discussed the role of miR-377 during tumor progression. It has been reported that miR-377 mainly functions as a tumor suppressor through the regulation of signaling pathways and transcription factors. This review is an important step toward introducing the miR-377 as a novel diagnostic marker as well as a therapeutic target in cancer patients.
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Alizadeh A, Mirzaahmadi S, Asaadi Tehrani G, Jabbara N. A comparative assessment of RNF38 and P53 genes expression in the sperm samples obtained from males with normozoospermia and asthenospermia: A case-control study. Int J Reprod Biomed 2023; 20:1019-1028. [PMID: 36819206 PMCID: PMC9928977 DOI: 10.18502/ijrm.v20i12.12563] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 06/07/2022] [Accepted: 10/30/2022] [Indexed: 01/11/2023] Open
Abstract
Background Infertility is considered as a common problem appears in about 10-12% of couples in their reproductive ages. Ring finger protein 38 (RNF38) gene is a ubiquitin-protein ligase that can regulate Protein 53 (P53) and affect cellular motility. Objective Considering the role of P53 on cellular motility and RNF38 on the regulation of P53, the present study aimed to assess the difference between RNF38 and P53 genes expression in normozoospermic and asthenospermic samples as a diagnostic biomarker in males. Materials and Methods The present study was conducted among 21 asthenospermicsand 63 healthy individuals. First, the real-time polymerase chain reaction technique was applied to measure the expression level of the P53 and RNF38 genes extracted from sperm samples, and the glyceraldehyde-3phosphate dehydrogenase gene was selected as the reference gene. Results An increase and a decrease occurred in the level of P53 and RNF38 genes expressions in asthenospermic and normozoospermic samples, respectively. In addition, a significant difference was observed between increasing P53 gene expression (p < 0.001), reducing RNF38 one, and decreasing sperm motility (p < 0.001) in asthenospermic cells compared to that of normozoospermic ones. Conclusion Based on the results, an increase in the expression of the P53 gene and a decrease in the expression of the RNF38 gene had a significant relationship with asthenospermia in men. Therefore, it is expected that an effective step should be adopted to diagnose the asthenospermia expression pattern by using these results.
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Affiliation(s)
- Alireza Alizadeh
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran
| | - Sina Mirzaahmadi
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran
| | - Golnaz Asaadi Tehrani
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran
| | - Neda Jabbara
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran
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Lin C, Li M, Lin N, Zong J, Pan J, Ye Y. RNF38 suppress growth and metastasis via ubiquitination of ACTN4 in nasopharyngeal carcinoma. BMC Cancer 2022; 22:549. [PMID: 35568845 PMCID: PMC9107765 DOI: 10.1186/s12885-022-09641-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 05/03/2022] [Indexed: 11/16/2022] Open
Abstract
Background Accumulated evidence suggests that RING finger proteins (RNFs) are involved in the carcinogenesis of cancers. However, RNF38, a member of the RNF protein family, has not been studied in nasopharyngeal carcinoma (NPC). Methods RNF38 expression was analyzed by RT-PCR, Western blotting and Immunohistochemistry. Biological functions of RNF38 were evaluated by cell growth, colony formation, apoptosis, migration and invasion assays in vitro. Xenograft growth and lung metastasis models were conducted to investigate the effect of RNF38 in vivo. Liquid chromatography coupled with tandem mass spectrometry, co-immunoprecipitation, and CHX assay were implemented to detect the interaction among RNF38 and ACTN4. Results RNF38 was significantly downregulated in NPC cells and tissues. Immunohistochemistry implied that loss of RNF38 was an independent prognostic factor for poor outcomes of NPC patients. Gain- and loss-of-function experiments showed that RNF38 inhibited proliferation and metastasis in NPC in vitro and in vivo. Upregulation of RNF38 promoted apoptosis of NPC cells to etoposide but not cisplatin. ACTN4 was upregulated in NPC and negatively correlated with RNF38. Mechanistic investigations suggested that RNF38 inactivates the NF-𝛋B and ERK1/2 signaling pathways by inducing ubiquitination and degradation of ACTN4. RNF38 suppress the development of NPC by interacting with ACTN4. Conclusions RNF38 plays a potential cancer suppressor gene role in NPC tumorigenesis and is a prognostic biomarker in NPC. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09641-x.
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Affiliation(s)
- Cheng Lin
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital & Fujian Cancer Hospital, Fuzhou, 350014, China.
| | - Meifang Li
- Department of Medical Oncology, Fujian Medical University Cancer Hospital & Fujian Cancer Hospital, Fuzhou, China
| | - Na Lin
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital & Fujian Cancer Hospital, Fuzhou, 350014, China
| | - Jingfeng Zong
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital & Fujian Cancer Hospital, Fuzhou, 350014, China
| | - Jianji Pan
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital & Fujian Cancer Hospital, Fuzhou, 350014, China
| | - Yunbin Ye
- Laboratory of Immuno-Oncology, Fujian Cancer Hospital, Fuzhou, 350014, China. .,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China.
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Chen Z, Du J, Yang C, Si G, Chen Y. circ-CFH promotes the development of HCC by regulating cell proliferation, apoptosis, migration, invasion, and glycolysis through the miR-377-3p/RNF38 axis. Open Life Sci 2022; 17:248-260. [PMID: 35415236 PMCID: PMC8951215 DOI: 10.1515/biol-2022-0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/12/2021] [Accepted: 01/03/2022] [Indexed: 12/24/2022] Open
Abstract
Abstract
Circular RNAs (circRNAs) have previously been confirmed to function as vital regulators in multiple human cancers, including hepatocellular carcinoma (HCC). This study aimed to clarify the role and underlying molecular mechanisms of circ-CFH in HCC. circ-CFH was overexpressed in HCC tissues and cells, and the downregulation of circ-CFH inhibited the development of HCC by repressing cell proliferation, migration, invasion, and glycolysis while enhancing apoptosis in vitro, as well as inhibited tumor growth in vivo. miR-377-3p was negatively regulated by circ-CFH, and silencing of miR-377-3p abolished circ-CFH knockdown-mediated effects on HCC cells. Moreover, overexpression of miR-377-3p could impede the HCC process by targeting RNF38. Mechanistically, the circ-CFH/miR-377-3p/RNF38 axis regulated the progression of HCC cells, which might provide new diagnostic markers for HCC.
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Affiliation(s)
- Zengyin Chen
- Department of Hepatobiliary Surgery, Chengyang District People’s Hospital, Qingdao, 266000, Shandong, China
| | - Juan Du
- Department of Hepatobiliary Surgery, Chengyang District People’s Hospital, Qingdao, 266000, Shandong, China
| | - Chen Yang
- Department of Hepatobiliary Surgery, Qingdao People’s Hospital, No. 600 Changcheng Road, Chengyang District, Qingdao, 266000, Shandong, China
| | - Guangju Si
- Department of Hepatobiliary Surgery, Chengyang District People’s Hospital, Qingdao, 266000, Shandong, China
| | - Yuxin Chen
- Department of Hepatobiliary Surgery, Chengyang District People’s Hospital, Qingdao, 266000, Shandong, China
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Zhou J, Tang ZY, Sun XL. RNF38 inhibits osteosarcoma cell proliferation by binding to CRY1. Biochem Cell Biol 2021; 99:629-635. [PMID: 34460347 DOI: 10.1139/bcb-2021-0093] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The PI3K/AKT pathway plays an important role in the development of osteosarcoma. RNF38 interferes with activation of the AKT pathway. Cryptochrome1 (CRY1) inhibits osteosarcoma proliferation through the AKT pathway. We aimed to clarify whether RNF38 affects the proliferation of osteosarcoma cells by regulating the PI3K/AKT pathway through its interaction with CRY1. The mRNA levels of RNF38 were determined using qRT-PCR. Protein levels of RNF38, p-p70S6, p70S6, +p-AKT, AKT, p-mTOR, mTOR, and CRY1 were detected by western blotting. The proliferation of osteosarcoma cells was detected using CCK-8 and colony formation assays. The interaction between CRY1 and RNF38 was detected by co-immunoprecipitation and GST pull-down assays. RNF38 expression was higher in Saos-2 and U20S cells than in hFOB cells. Overexpression of RNF38 promoted the proliferation of osteosarcoma cells, the number of colonies, and p-AKT and p-mTOR levels, suggesting that overexpression of RNF38 activated the PI3K/AKT pathway. In addition, RNF38 directly binds to the N-terminal of CRY1. The simultaneous knockdown of RNF38 and CRY1 restored the level of p-AKT, which was reduced by RNF38 knockdown alone. RNF38 affects the proliferation of osteosarcoma cells by regulating the PI3K/AKT pathway through its interaction with CRY1.
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Affiliation(s)
- Jian Zhou
- Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou 213000, Jiangsu Province, China.,Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou 213000, Jiangsu Province, China
| | - Zhen-Yu Tang
- Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou 213000, Jiangsu Province, China.,Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou 213000, Jiangsu Province, China
| | - Xiao-Liang Sun
- Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou 213000, Jiangsu Province, China.,Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou 213000, Jiangsu Province, China
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Wang H, Si S, Jiang M, Chen L, Huang K, Yu W. Leukemia inhibitory factor is involved in the pathogenesis of NSCLC through activation of the STAT3 signaling pathway. Oncol Lett 2021; 22:663. [PMID: 34386085 PMCID: PMC8299032 DOI: 10.3892/ol.2021.12924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 05/04/2021] [Indexed: 02/06/2023] Open
Abstract
Leukemia inhibitory factor (LIF) is a tumor promoter in several cancer types. However, the role of LIF in non-small cell lung cancer (NSCLC) remains to be explored. The present study explored the hypothesis that LIF is important for NSCLC development by measuring LIF expression and its downstream signal transducer and activator of transcription 3 (STAT3) phosphorylation in tumor samples derived from patients with NSCLC. The association between LIF expression and clinical features was analyzed in two cancer subtypes. The effects of LIF on cell proliferation, migration and invasion were also evaluated in a NSCLC-derived cell line, A549. LIF mRNA and protein expression levels were significantly higher in tumor tissues compared with those in the corresponding adjacent and normal lung tissues. Regarding NSCLC subtypes, LIF expression was significantly higher in adenocarcinoma than in squamous cell carcinoma tissues. It was also found that phosphorylated-STAT3 levels were higher in tumor tissues compared with those in the corresponding adjacent and normal lung tissues, which was in agreement with the LIF expression levels in NSCLC tissues. Clinically, overexpression of LIF was positively correlated with aggressive tumor characteristics, including lymph node metastasis and advanced tumor stage. In A549 cells, LIF treatment enhanced cell proliferation, migration and invasion. LIF also increased STAT3 phosphorylation in A549 cells, and the STAT3 inhibitor Stattic decreased A549 cell migration and invasion following LIF stimulation. The present results demonstrate that LIF is overexpressed in NSCLC, and that LIF can promote NSCLC development through activation of the STAT3 signaling pathway. The present study indicates that LIF may serve as a potential prognostic marker for NSCLC.
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Affiliation(s)
- Huaying Wang
- Department of Respiratory and Critical Care Medicine, People's Hospital Affiliated to Ningbo University, Yinzhou People's Hospital, Ningbo, Zhejiang 315040, P.R. China
| | - Sai'nv Si
- Department of Respiratory and Critical Care Medicine, People's Hospital Affiliated to Ningbo University, Yinzhou People's Hospital, Ningbo, Zhejiang 315040, P.R. China
| | - Mingjun Jiang
- Department of Thoracic Surgery, People's Hospital Affiliated to Ningbo University, Yinzhou People's Hospital, Ningbo, Zhejiang 315040, P.R. China
| | - Liping Chen
- Department of Respiratory and Critical Care Medicine, People's Hospital Affiliated to Ningbo University, Yinzhou People's Hospital, Ningbo, Zhejiang 315040, P.R. China
| | - Kefeng Huang
- Department of Thoracic Surgery, People's Hospital Affiliated to Ningbo University, Yinzhou People's Hospital, Ningbo, Zhejiang 315040, P.R. China
| | - Wanjun Yu
- Department of Respiratory and Critical Care Medicine, People's Hospital Affiliated to Ningbo University, Yinzhou People's Hospital, Ningbo, Zhejiang 315040, P.R. China
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Yang J, Niu H, Chen X. GATA1-Activated HNF1A-AS1 Facilitates the Progression of Triple-Negative Breast Cancer via Sponging miR-32-5p to Upregulate RNF38. Cancer Manag Res 2021; 13:1357-1369. [PMID: 33603481 PMCID: PMC7886384 DOI: 10.2147/cmar.s274204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/24/2020] [Indexed: 12/14/2022] Open
Abstract
Background Triple-negative breast cancer (TNBC) is a highly invasive subtype of breast cancer with a high mortality rate. Recently, long non-coding RNAs (lncRNAs) are confirmed to modulate the progression of assorted cancers, including TNBC. However, the functions of lncRNA HNF1 homeobox A antisense RNA 1 (HNF1A-AS1) in TNBC are still unclear. Aim We aimed to investigate the function and mechanism of HNF1A-AS1 in TNBC. Methods The expression of genes in TNBC cells was tested by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. In vitro loss-of-function assays and in vivo xenograft experiments were conducted for evaluating the impact of HNF1A-AS1 on TNBC progression. RNA pull-down, luciferase reporter and RNA immunoprecipitation (RIP) assays were utilized for assessing the correlations between molecules. Results We discovered that HNF1A-AS1 was highly expressed in TNBC tissues and cells. Knockdown of HNF1A-AS1 restrained cell proliferation but accelerated cell apoptosis. Besides, GATA-binding protein 1 (GATA1) activated HNF1A-AS1 transcription in TNBC. MicroRNA-32-5p (miR-32-5p) was slowly expressed in TNBC cells and sponged by HNF1A-AS1, and its overexpression hinders TNBC cell growth. Ring finger protein 38 (RNF38) was verified as the target of miR-32-5p, and HNF1A-AS1 was a competing endogenous RNA (ceRNA) of RNF38 through sponging miR-32-5p. Rescue experiments indicated that upregulation of RNF38 reversed the inhibited impacts of silencing HNF1A-AS1 on TNBC cell growth. Conclusion GATA1-activated HNF1A-AS1 facilitated TNBC progression via miR-32-5p/RNF38 axis. The findings may provide new roads for developing targeted therapies of TNBC.
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Affiliation(s)
- Jingyu Yang
- Department of Breast Thyroid Surgery, The First People's Hospital of Yunnan Province, Kunming, 650032, People's Republic of China
| | - Heng Niu
- Department of Breast Thyroid Surgery, The First People's Hospital of Yunnan Province, Kunming, 650032, People's Republic of China
| | - Xin Chen
- Department of Breast Thyroid Surgery, The First People's Hospital of Yunnan Province, Kunming, 650032, People's Republic of China
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Wu XT, Wang YH, Cai XY, Dong Y, Cui Q, Zhou YN, Yang XW, Lu WF, Zhang M. RNF115 promotes lung adenocarcinoma through Wnt/β-catenin pathway activation by mediating APC ubiquitination. Cancer Metab 2021; 9:7. [PMID: 33509267 PMCID: PMC7842072 DOI: 10.1186/s40170-021-00243-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 01/13/2021] [Indexed: 12/20/2022] Open
Abstract
Background Patients with lung adenocarcinoma (LUAD) have high mortality rate and poor prognosis. The LUAD cells display increased aerobic glycolysis, which generates energy required for their survival and proliferation. Deregulation of Wnt/β-catenin signaling pathway induces the metabolism switching and oncogenesis in tumor cells. RING finger protein 115 (RNF115) is an E3 ligase for ubiquitin-mediated degradation. Although the oncogenic functions of RNF115 have been revealed in breast tumor cells, the effect of RNF115 on lung cancer is still not clear. Methods RNF115 expression and its correlation with the features of LUAD patients were analyzed by using public database and our own cohort. The functions of RNF115 in proliferation and energy metabolism in LUAD cells were explored by downregulating or upregulating RNF115 expression. Results We demonstrated that RNF115 was overexpressed in LUAD tissues and its expression was positively correlated with the poor overall survival of LUAD patients. Moreover, RNF115 overexpression inhibited LUAD cell apoptosis and promoted cellular proliferation and metabolism in LUAD cells. On the contrary, RNF115 knockdown displayed reverse effects. Furthermore, the underlying mechanism of the biological function of RNF115 in LUAD was through regulating Wnt/β-catenin pathway via ubiquitination of adenomatous polyposis coli (APC). Conclusion The current study reveals a close association between RNF115 expression and prognostic conditions in LUAD patients and the oncogenic roles of RNF115 in LUAD at the first time. These findings may help establish the foundation for the development of therapeutics strategies and clinical management for lung cancer in future. Supplementary Information The online version contains supplementary material available at 10.1186/s40170-021-00243-y.
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Affiliation(s)
- Xiao-Ting Wu
- Department of Integrated Traditional Chinese and Western Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, No. 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China
| | - Yu-Han Wang
- Department of Integrated Traditional Chinese and Western Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiao-Yue Cai
- Department of Integrated Traditional Chinese and Western Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, No. 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China
| | - Yun Dong
- Department of Integrated Traditional Chinese and Western Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, No. 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China
| | - Qing Cui
- Department of Integrated Traditional Chinese and Western Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, No. 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China
| | - Ya-Ning Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, No. 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China
| | - Xi-Wen Yang
- LongHua Hospital Shanghai University of Traditional Chinese Medicine/Oncology Division 2, Shanghai, China
| | - Wen-Feng Lu
- Department of Integrated Traditional Chinese and Western Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ming Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, No. 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China.
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Jia Y, Li S, Zhang M, Zhang Z, Wang C, Zhang C, Yang W, Peng L, Xu Z. Circ_LDLR Knockdown Suppresses Progression of Hepatocellular Carcinoma via Modulating miR-7/RNF38 Axis. Cancer Manag Res 2021; 13:337-349. [PMID: 33469375 PMCID: PMC7813465 DOI: 10.2147/cmar.s275003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 10/02/2020] [Indexed: 12/27/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is a horrible malignancy derived from liver. Circular RNAs (circRNAs) act important roles in the pathogenesis and progression of human diseases, including HCC. The current assay intended to investigate the function of circRNA low-density lipoprotein receptor (circ_LDLR) in HCC and clarify the underlying mechanism. Materials and Methods Expression of circ_LDLR, microRNA (miR)-7 and ring finger protein 38 (RNF38) was determined by quantitative real-time PCR (qRT-PCR) or Western blot analysis. Flow cytometry was used to detect cell cycle distribution and apoptosis. Cell colony formation ability and viability were examined by colony formation and methyl thiazolyl tetrazolium (MTT) assays, respectively. Levels of cell proliferation and epithelia-mesenchymal transition (EMT) biomarker proteins were analyzed via Western blot assay. Cell migration and invasion were monitored by Transwell assay, and target relationship between miR-7 and circ_LDLR or RNF38 was validated by dual-luciferase reporter assay. Xenograft model was established to explore the role of circ_LDLR in vivo. Results Expression of circ_LDLR and RNF38 was upregulated, but miR-7 expression was downregulated in HCC tissues and cells. Circ_LDLR knockdown significantly inhibited cell proliferation, migration, invasion and EMT in HCC cells. Circ_LDLR acted as a sponge of miR-7, and interference of miR-7 could attenuate circ_LDLR knockdown-induced inhibitory effects on malignant behaviors of HCC cells. Besides, miR-7 also repressed cell proliferation and metastasis of HCC cells, by targeting RNF38. Depletion of circ_LDLR could suppress tumor growth in vivo. Conclusion Depletion of circ_LDLR restrained HCC cell proliferation, metastasis and tumorigenesis through the regulation on miR-7/RNF38 axis, affording a promising therapeutic target for HCC.
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Affiliation(s)
- Yuming Jia
- Department of Hepatobiliary Surgery, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, Hebei, People's Republic of China
| | - Shengchao Li
- Department of Hepatobiliary Surgery, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, Hebei, People's Republic of China
| | - Meng Zhang
- Department of Hepatobiliary Surgery, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, Hebei, People's Republic of China
| | - Zhilei Zhang
- Department of Hepatobiliary Surgery, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, Hebei, People's Republic of China
| | - Chao Wang
- Department of Hepatobiliary Surgery, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, Hebei, People's Republic of China
| | - Chong Zhang
- Department of Hepatobiliary Surgery, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, Hebei, People's Republic of China
| | - Wuhan Yang
- Department of Hepatobiliary Surgery, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, Hebei, People's Republic of China
| | - Li Peng
- Department of Hepatobiliary Surgery, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, Hebei, People's Republic of China
| | - Zhuo Xu
- Department of Hepatobiliary Surgery, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, Hebei, People's Republic of China
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Wu C, Chen L, Tao H, Kong L, Hu Y. RING finger protein 38 induces the drug resistance of cisplatin in non-small-cell lung cancer. Cell Biol Int 2020; 45:287-294. [PMID: 32706501 DOI: 10.1002/cbin.11423] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 04/28/2020] [Revised: 06/26/2020] [Accepted: 07/22/2020] [Indexed: 12/14/2022]
Abstract
Cisplatin resistance of non-small-cell lung cancer (NSCLC) needs to be well elucidated. RING finger protein (RNF38) has been proposed as a biomarker of NSCLC poor prognosis. However, its role in drug resistance in NSCLC is poorly understood. RNF38 expression was detected in normal lung epithelial cell and four NSCLC cell lines. RNF38 was stably overexpressed in A549 and H460 cells or silenced in H1975 and cisplatin-resistant A549 cells (A549-CDDP resistant) using lentiviral vectors. RNF38 expression levels were determined using quantitative real-time polymerase chain reaction and western blotting analysis. Cell viability in response to different concentrations of cisplatin was evaluated by Cell Counting Kit-8 assay. RNF38 expression levels were markedly elevated in NSCLC cells and cells harboring high RNF38 were less sensitive to cisplatin. Overexpression of RNF38 reduced, while RNF38 silencing increased the drug sensitivity of cisplatin in NSCLC cells. Cisplatin-resistant cells expressed high RNF38 level. RNF38 silencing promoted cell apoptosis and enhanced the drug sensitivity of cisplatin in cisplatin-resistant NSCLC cells. These findings indicate that RNF38 might induce cisplatin resistance of NSCLC cells via promoting cell apoptosis and RNF38 could be a novel target for rectify cisplatin resistance in NSCLC cases.
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Affiliation(s)
- Chao Wu
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Lei Chen
- Department of Thoracic Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Haitao Tao
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Lu Kong
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yi Hu
- Department of Medical Oncology, Chinese People's Liberation Army General Hospital, Beijing, China
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Li Y, Duan B, Li Y, Yu S, Wang Y. The isoflavonoid calycosin inhibits inflammation and enhances beta cell function in gestational diabetes mellitus by suppressing RNF38 expression. Immunopharmacol Immunotoxicol 2020; 42:366-372. [PMID: 32538204 DOI: 10.1080/08923973.2020.1782426] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Gestational diabetes mellitus (GDM) is a medical complication and metabolic disorder associated with pregnancy. Calycosin is a traditional Chinese herbal medicine that is used for the treatment of multiple diseases. This study focused on exploring the effects and underlying mechanisms of Calycosin on GDM. METHODS The db/+ diabetic mice model of GDM was used to evaluate the effects of calycosin administration on the symptoms of GDM mice. Blood glucose, cytokine production (interleukin 6, IL-6; tumor necrosis factor-α, TNF-α), and insulin levels were measured by ELISA assay. The expression level of signal transducer and activator of transcription 3 (STAT3), ring finger protein 38 (RNF38), and SH2-containing protein tyrosine phosphatase 1 (SHP-1) were determined by Western Blot assay. Beta cell proliferation was assessed by CCK-8 assay. RESULTS Our data indicated that administration of calycosin significantly improved the GDM symptoms in pregnant db/+ mice as demonstrated by reduced blood glucose, TNF-a, and IL-6 levels as well as increased insulin level, and body weight. Furthermore, we revealed that RNF38/SHP-1/STAT3 signaling should play a critical role in calycosin-promoted beta cell function, and forced expression of RNF38 attenuated the positive effects of calycosin on beta cells. CONCLUSION Our study implied that calycosin exerts favorable effects on GDM mice via rebalancing insulin sensitivity and inflammatory response.
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Affiliation(s)
- Yuan Li
- Department of Obstetrics, ZiBo Central Hospital, Zibo, China
| | - Bide Duan
- Department of Obstetrics, ZiBo Central Hospital, Zibo, China
| | - Ying Li
- Department of Obstetrics, ZiBo Central Hospital, Zibo, China
| | - Shujun Yu
- Department of Obstetrics, ZiBo Central Hospital, Zibo, China
| | - Yanyun Wang
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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Huang Z, Yang P, Ge H, Yang C, Cai Y, Chen Z, Tian W, Wang H. RING Finger Protein 38 Mediates LIM Domain Binding 1 Degradation and Regulates Cell Growth in Colorectal Cancer. Onco Targets Ther 2020; 13:371-379. [PMID: 32021282 PMCID: PMC6969705 DOI: 10.2147/ott.s234828] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 12/26/2019] [Indexed: 12/25/2022] Open
Abstract
Background and Objectives RING finger protein 38 (RNF38) has been reported to be involved in the tumorigenesis of several tumors, but its role in colorectal cancer (CRC) is still not investigated. In the present study, we aimed to investigate the effect of RNF38 in CRC cells. Materials and Methods The public tumor databases GEPIA and Kaplan-Meier Plotter were used to analyze RNF38 expression and patients’ overall survival in CRC. The qRT-PCR was carried out to assess the mRNA levels of RNF38 and LDB1. Western blot and co-immunoprecipitation were used to detect protein expression and ubiquitination. CCK-8 assay was performed to analyze CRC cell growth and viability. Results RNF38 was found downregulated in CRC tumor tissues and cell lines, and CRC patients with high RNF38 expression had a longer overall survival than patients with low RNF38 expression. Our further investigations showed that RNF38 interacted with LDB1, and downregulated LDB1 expression by inducing its polyubiquitination. Moreover, overexpression of RNF38 inhibited CRC cell growth but enforced LDB1 could significantly antagonize RNF38-induced cell growth inhibition in CRC cells. Additionally, RNF38/LDB1 axis was involved in the drug sensitivity of 5-FU to CRC cells. Conclusion Our studies suggested that RNF38 was functional in CRC cells, and downregulated CRC cell growth by inducing LDB1 polyubiquitination, which indicated that RNF38 could be as a novel target for CRC therapy.
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Affiliation(s)
- Ziming Huang
- Department of Emergency Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, People's Republic of China
| | - Peng Yang
- Department of Emergency, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Hengfa Ge
- Department of Emergency Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, People's Republic of China
| | - Chenchen Yang
- Department of Emergency Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, People's Republic of China
| | - Yong Cai
- Department of Emergency Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, People's Republic of China
| | - Zhen Chen
- Department of Emergency Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, People's Republic of China
| | - Wenze Tian
- Department of Cardio-Thoracic Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, People's Republic of China
| | - Haixiao Wang
- Department of General Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, People's Republic of China
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15
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Wan WB, Wu K, Peng K, Qiu ZQ, Duan ZB, Chen X, Xu ZM, Cheng K, Zhao JMH, Shi QM. High level of RNF187 contributes to the progression and drug resistance of osteosarcoma. J Cancer 2020; 11:1351-1358. [PMID: 32047542 PMCID: PMC6995399 DOI: 10.7150/jca.33488] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 10/05/2019] [Indexed: 01/20/2023] Open
Abstract
Objectives: Ring finger protein 187 (RNF187) was recently demonstrated to be up-regulation and function as a promoter in multiple cancers. However, the roles of RNF187 in osteosarcoma (OS) are unclear. Here, we tried to reveal the clinicopathological and biological roles of RNF187 in OS. Materials and Methods: We employed the quantitative real-time polymerase chain reaction (qRT-PCR) and immunohistochemistry (IHC) to determine the expression of RNF187 in OS tissues and cells. Migration and invasion capacities were analyzed by wound healing and transwell assays, and colony formation and CCK8 assays were performed to investigate proliferative ability. The functional effects of RNF187 on OS drugs resistance were further determined by CCK8 and western blot assays. Then, the relationship between RNF187 expression and clinical implications was analyzed by tissue microarrays (TMAs) including 51 OS cases. Moreover, the prognostic value was also determined by Kaplan-Meier analysis. Results: We reported that RNF187 mRNA was significantly increased in OS tissues compared to matched nontumorous tissues (3.83 ±0.79 vs. 1.70 ± 0.63), which was in line with the IHC assay in TMAs. By RNA interference and cDNA transfection, we showed high level of RNF187 increased the migration, invasion and proliferation of OS cells. Moreover, we demonstrated that elevated RNF187 expression induced OS cell drugs resistance, activated the ERK1/2 molecular and markedly enhanced the BCL-2 expression. Clinically, OS patients with high level of RNF187 was associated with Histologic differentiation (p=0.001), an advanced Enneking stage (p=0.001), response to chemotherapy (p=0.004), and metastasis (p= 0.001). Clinically, our data displayed that the RNF187 overexpression in OS samples associated with shorten overall survival (p=0.001) and high tumor recurrence (p=0.001) in postoperative OS patients. Conclusions: Our results indicate that Elevated RNF187 expression is a new adverse outcomes marker for OS patients and may be used as a new therapeutic target of OS.
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Affiliation(s)
- Wen-Bing Wan
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Kai Wu
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Kun Peng
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Zhi-Qiang Qiu
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Zhi-Bin Duan
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Xiang Chen
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Ze-Min Xu
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Ke Cheng
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Jiang-Ming-Hao Zhao
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Qing-Ming Shi
- Department of Orthopedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
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Huang Z, Ma N, Xiong YL, Wang L, Li WM, Lai YY, Zhang CX, Zhang ZP, Li XF, Zhao JB. Aberrantly High Expression Of NOK/STYK1 Is Tightly Associated With The Activation Of The AKT/GSK3β/N-Cadherin Pathway In Non-Small Cell Lung Cancer. Onco Targets Ther 2019; 12:10299-10309. [PMID: 31819514 PMCID: PMC6885570 DOI: 10.2147/ott.s210014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 10/31/2019] [Indexed: 12/18/2022] Open
Abstract
Purpose High metastasis is a leading risk factor for the survival of non-small cell lung cancer (NSCLC) and epithelial-mesenchymal transition (EMT) is a vital step of metastasis. The expression of novel oncogene with kinase domain (NOK) has been observed in some human malignancies, including non-small cell lung cancer (NSCLC); however, the biological function of NOK in NSCLC remains unclear. In the study, we explored the function of NOK in NSCLC, with an aim to elucidate the relevant underlying mechanisms. Patients and methods We investigate the expression of NOK, p-Akt, p-GSK-3β, E-cadherin and N-cadherin expression by immunohistochemical analysis using tissue microarrays of 72 paired NSCLC samples of cancerous and adjacent normal tissues. The associations between NOK expression and clinicopathological factors, overall survival, other proteins were assessed. Immunofluorescence analysis of NSCLC tissues was performed to study the location of NOK, Akt and GSK-3β. Up or down-regulated of NOK were conducted in two NSCLC cell lines to analyze its impact on AKT/GSK3β pathway. Results Statistical analysis revealed NOK expression increased in NSCLC tissues compared with normal tissues (P<0.05). It also showed that low NOK expression were associated with a higher possibility of non-lymphatic metastasis, an early pN stage and clinical stage (P<0.05). Moreover, NOK expression was positively correlated with the expression of oncogene p-Akt (Thr308), p-GSK-3β (Ser9) and N-cadherin (P<0.05). Immunofluorescence analysis of NSCLC tissues revealed that NOK is co-located with Akt and GSK-3β. Further study in NSCLC cell lines revealed that NOK overexpression can activate the AKT/GSK3β pathway. Conversely, knockdown of NOK can suppress the AKT/GSK3β pathway. Conclusion Our results suggest that NOK overexpression correlated significantly with lymphatic metastasis, advanced pN and clinical stage in NSCLC. And NOK may promote EMT by activating the AKT/GSK3β/N-cadherin pathway in NSCLC.
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Affiliation(s)
- Zhao Huang
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, People's Republic of China
| | - Nan Ma
- Department of Ophthalmology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, People's Republic of China
| | - Yan-Lu Xiong
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, People's Republic of China
| | - Lei Wang
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, People's Republic of China
| | - Wei-Miao Li
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, People's Republic of China
| | - Yuan-Yang Lai
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, People's Republic of China
| | - Chen-Xi Zhang
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, People's Republic of China
| | - Zhi-Pei Zhang
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, People's Republic of China
| | - Xiao-Fei Li
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, People's Republic of China
| | - Jin-Bo Zhao
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, People's Republic of China
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Li HR, Qiu BQ, Gao J, Jin C, Jiang JH, Ding JY. Overexpression of EI2BL promoted human non-small cell lung cancer progression by inducing cell EMT phenotype. J Clin Pathol 2019; 73:139-146. [PMID: 31586937 DOI: 10.1136/jclinpath-2019-205778] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 09/16/2019] [Accepted: 09/21/2019] [Indexed: 11/04/2022]
Abstract
AIMS To unveil the role of EI2BL in non-small cell lung cancer (NSCLC) and the relationship between expression of EI2BL and the prognosis of patients with NSCLC. METHODS Immunohistochemistry (IHC), western blot analysis, immunofluorescence and real-time quantitative PCR (RT-qPCR) were used to evaluate EI2BL protein and mRNA levels in NSCLC and corresponding peritumour tissues. Cell Counting Kit-8, transwell assay and wound healing assay were used to analyse the abilities of cell proliferation, invasion and migration. In addition, the analysis of epithelial-mesenchymal transition (EMT) markers was also assessed by western blot analysis, RT-qPCR and immunofluorescence. Tissue micro-array analysis of 200 NSCLC cases was used to assess the relationship between EI2BL expression and clinicopathological characteristics. Moreover, the prognostic role of EI2BL in 200 patients with NSCLC was evaluated by Cox regression models and Kaplan-Meier methods. RESULTS Elevated EI2BL expression was more common in NSCLC tissues than paired peritumour tissues in both mRNA and protein level. EI2BL promoted the proliferation, invasion and migration of NSCLC cells. In addition, aberrant EI2BL expression might modulate the expression of key molecules of EMT by ERK1/2 signal pathway. The expression of EI2BL was significantly associated with tumour stage, lymph node metastasis and tumour size. Moreover, higher expression of EI2BL in patients with NSCLC had a poor overall survival rate. CONCLUSIONS Our study illustrated that elevated expression of EI2BL promoted NSCLC cell proliferation, migration and invasion and EI2BL overexpression may be a reliable biomarker of poor prognosis.
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Affiliation(s)
- Hao-Ran Li
- Department of Thoracic Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Bai-Quan Qiu
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jian Gao
- Department of Thoracic Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Chun Jin
- Department of Thoracic Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Jia-Hao Jiang
- Department of Thoracic Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Jian-Yong Ding
- Department of Thoracic Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
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Peng R, Zhang PF, Yang X, Wei CY, Huang XY, Cai JB, Lu JC, Gao C, Sun HX, Gao Q, Bai DS, Shi GM, Ke AW, Fan J. Overexpression of RNF38 facilitates TGF-β signaling by Ubiquitinating and degrading AHNAK in hepatocellular carcinoma. J Exp Clin Cancer Res 2019; 38:113. [PMID: 30836988 PMCID: PMC6402116 DOI: 10.1186/s13046-019-1113-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 02/18/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND RING finger protein 38 (RNF38), a member of the RNF protein family, has just emerged as a vital driver of cancer progression. However, the oncogenic mechanisms of RNF38 remain unexplored. METHODS Using frozen tumor tissue and tissue microarray from hepatocellular carcinoma (HCC) patients, we tried to probe the expression of RNF38 in HCC and its clinical value. Then the biological functions of RNF38 were analyzed in vivo and vitro. Stable isotope labeling with amino acids (SILAC) in cell culture and co-immunoprecipitation proteomic analyses were combined to reveal the potential mechanism of RNF38 in HCC progression. RESULTS We report that RNF38 expression was markedly higher in HCC tissues than in peritumor tissues. Correspondingly, RNF38 overexpression promoted the HCC cell migration and invasion and inhibited apoptosis both in vitro and in vivo. And elevated RNF38 expression induced HCC cell epithelial-mesenchymal transition by facilitating transforming growth factor-β (TGF-β) signaling via ubiquitinating and degrading neuroblast differentiation-associated protein (AHNAK), a well-established inhibitor of TGF-β signaling. Furthermore, AHNAK interference restored the HCC cell invasion and metastasis deprived by RNF38 downregulation. Clinically, elevated RNF38 and transforming growth factor beta receptor 1 (TGFBR1) expression was related to short overall survival (OS) and high cumulative recurrence rates in HCC patients. CONCLUSIONS High levels of RNF38 promote HCC by facilitating TGF-β signaling and are a novel marker for predicting the prognosis of HCC patients and a potential therapeutic target in HCC.
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Affiliation(s)
- Rui Peng
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China.,Clinical Medical College, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Peng-Fei Zhang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China.,Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200031, China
| | - Xuan Yang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Chuan-Yuan Wei
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Xiao-Yong Huang
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Jia-Bin Cai
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Jia-Cheng Lu
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Chao Gao
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Hai-Xiang Sun
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Qiang Gao
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China
| | - Dou-Sheng Bai
- Clinical Medical College, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Guo-Ming Shi
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China.
| | - Ai-Wu Ke
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China.
| | - Jia Fan
- Liver Cancer Institute, Zhongshan Hospital, Fudan University; Key Laboratory of Carcinogenesis and Cancer Invasion (Fudan University), Ministry of Education, 180 Feng lin Road, Shanghai, 200032, People's Republic of China. .,Cancer Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200031, People's Republic of China.
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Fu Z, Yu W, Wang H, Chen X. Overexpression of RNF187 induces cell EMT and apoptosis resistance in NSCLC. J Cell Physiol 2019; 234:14161-14169. [PMID: 30624778 DOI: 10.1002/jcp.28111] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 11/11/2018] [Accepted: 12/07/2018] [Indexed: 12/15/2022]
Abstract
Overexpression of RING finger protein 187 (RNF187) was recently revealed to be a driver of several cancers. However, the expression and function of RNF187 in non-small-cell lung cancer (NSCLC) are still unknown. Here, we uncovered that RNF187 expression was significantly higher in NSCLC samples than in matched normal lung samples at both the messenger RNA (3.55 ± 0.79 vs. 1.74 ± 0.63) and protein (2.85 ± 0.14 vs. 1.24 ± 0.02) levels. By downregulating or upregulating RNF187 expression in NSCLC cells, we showed that elevated RNF187 expression distinctly enhanced the migration, invasion, and colony formation of NSCLC cells. Moreover, we revealed that high level of RNF187 promoted NSCLC progression by inducing cell epithelial to mesenchymal transition (EMT) and apoptosis resistance mainly via activating the mitogen-activated protein kinase and PI3K signaling. Clinically, we demonstrated that RNF187 expression was positively associated with advanced TNM stage (p = 1.29 × 10 -6 ), lymph node metastasis ( p = 2.69 × 10 -9 ), and large tumor size ( p = 0.002). Importantly, NSCLC patients with elevated RNF187 expression related to the short overall survival rate( p = 1.29, E-7) and could serve as an independent prognostic factor in NSCLC patients. Thus, elevated RNF187 expression promotes NSCLC development by inducing cell EMT and apoptosis resistance, and RNF187 may be a novel prognostic indicator for NSCLC patients after curative resection.
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Affiliation(s)
- Zhongming Fu
- Department of Respiratory and Critical Care Medicine, Yinzhou People's Hospital, Affiliated Yinzhou Hospital, College of Medicine, Ningbo Univerisity, Ningbo, Zhejiang, People's Republic of China
| | - Wanjun Yu
- Department of Respiratory and Critical Care Medicine, Yinzhou People's Hospital, Affiliated Yinzhou Hospital, College of Medicine, Ningbo Univerisity, Ningbo, Zhejiang, People's Republic of China
| | - Huaying Wang
- Department of Respiratory and Critical Care Medicine, Yinzhou People's Hospital, Affiliated Yinzhou Hospital, College of Medicine, Ningbo Univerisity, Ningbo, Zhejiang, People's Republic of China
| | - Xiaofei Chen
- Department of Respiratory and Critical Care Medicine, Yinzhou People's Hospital, Affiliated Yinzhou Hospital, College of Medicine, Ningbo Univerisity, Ningbo, Zhejiang, People's Republic of China
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20
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Cham KL, Soga T, Parhar IS. Expression of RING Finger Protein 38 in Serotonergic Neurons in the Brain of Nile Tilapia, Oreochromis niloticus. Front Neuroanat 2018; 12:109. [PMID: 30574074 PMCID: PMC6292424 DOI: 10.3389/fnana.2018.00109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 11/21/2018] [Indexed: 11/13/2022] Open
Abstract
Serotonin (5-hydroxytryptamine, 5-HT) is one of the major neurotransmitters, modulating diverse behaviours and physiological functions. Really interesting new gene (RING) finger protein 38 (RNF38) is an E3 ubiquitin ligase whose function remains unclear. A recent study has shown a possible regulatory relationship between RNF38 and the 5-HT system. Therefore, to gain insight into the role of RNF38 in the central 5-HT system, we identified the neuroanatomical location of 5-HT positive cells and investigated the relationship between RNF38 and the 5-HT system in the brain of the Nile tilapia, Oreochromis niloticus. Immunocytochemistry revealed three neuronal populations of 5-HT in the brain of tilapia; the paraventricular organ (PVO), the dorsal and ventral periventricular pretectal nuclei (PPd and PPv), and, the superior and inferior raphe (SR and IR). The 5-HT neuronal number was highest in the raphe (90.4 in SR, 284.6 in IR), followed by the pretectal area (22.3 in PPd, 209.8 in PPv). Double-label immunocytochemistry showed that the majority of 5-HT neurons express RNF38 nuclear proteins (66.5% in PPd; 77.9% in PPv; 35.7% in SR; 49.1% in IR). These findings suggest that RNF38 could be involved in E3 ubiquitination in the central 5-HT system.
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Affiliation(s)
- Kai Lin Cham
- Brain Research Institute, School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia
| | - Tomoko Soga
- Brain Research Institute, School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia
| | - Ishwar S Parhar
- Brain Research Institute, School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia
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Zhang J, Wu H, Yi B, Zhou J, Wei L, Chen Y, Zhang L. RING finger protein 38 induces gastric cancer cell growth by decreasing the stability of the protein tyrosine phosphatase SHP-1. FEBS Lett 2018; 592:3092-3100. [PMID: 30112836 DOI: 10.1002/1873-3468.13225] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 06/22/2018] [Revised: 07/31/2018] [Accepted: 08/08/2018] [Indexed: 12/15/2022]
Abstract
The function of the E3 ligase RNF38 is still unknown in gastric cancer. Here, we found that RNF38 is upregulated in gastric cancer, and it is associated with the overall survival of gastric cancer patients. Further studies showed that RNF38 interacts with the nonreceptor tyrosine phosphatase SH2-containing protein tyrosine phosphatase 1 (SHP-1) and induces the polyubiquitination of SHP-1, which leads to destabilization of SHP-1 and promotion of STAT3 signaling in gastric cancer cells. In addition, overexpression or knockdown of RNF38 induces or suppresses gastric cancer cell growth in vitro, respectively, and silencing RNF38 delays tumor growth in vivo. These findings demonstrate that RNF38 is functional in gastric cancer and promotes STAT3 signaling by destabilizing SHP-1; thus, RNF38 could be a novel target for gastric cancer therapy.
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Affiliation(s)
- Jigang Zhang
- Department of Emergency Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Hao Wu
- Department of Emergency Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Bin Yi
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jian Zhou
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Luxin Wei
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yan Chen
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lifeng Zhang
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
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