1
|
Giordo R, Ahmadi FAM, Husaini NA, Al-Nuaimi NRA, Ahmad SM, Pintus G, Zayed H. microRNA 21 and long non-coding RNAs interplays underlie cancer pathophysiology: A narrative review. Noncoding RNA Res 2024; 9:831-852. [PMID: 38586315 PMCID: PMC10995982 DOI: 10.1016/j.ncrna.2024.03.013] [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: 10/10/2023] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 04/09/2024] Open
Abstract
Non-coding RNAs (ncRNAs) are a diverse group of functional RNA molecules that lack the ability to code for proteins. Despite missing this traditional role, ncRNAs have emerged as crucial regulators of various biological processes and have been implicated in the development and progression of many diseases, including cancer. MicroRNAs (miRNAs) and long non-coding RNAs (lncRNAs) are two prominent classes of ncRNAs that have emerged as key players in cancer pathophysiology. In particular, miR-21 has been reported to exhibit oncogenic roles in various forms of human cancer, including prostate, breast, lung, and colorectal cancer. In this context, miR-21 overexpression is closely associated with tumor proliferation, growth, invasion, angiogenesis, and chemoresistance, whereas miR-21 inactivation is linked to the regression of most tumor-related processes. Accordingly, miR-21 is a crucial modulator of various canonical oncogenic pathways such as PTEN/PI3K/Akt, Wnt/β-catenin, STAT, p53, MMP2, and MMP9. Moreover, interplays between lncRNA and miRNA further complicate the regulatory mechanisms underlying tumor development and progression. In this regard, several lncRNAs have been found to interact with miR-21 and, by functioning as competitive endogenous RNAs (ceRNAs) or miRNA sponges, can modulate cancer tumorigenesis. This work presents and discusses recent findings highlighting the roles and pathophysiological implications of the miR-21-lncRNA regulatory axis in cancer occurrence, development, and progression. The data collected indicate that specific lncRNAs, such as MEG3, CASC2, and GAS5, are strongly associated with miR-21 in various types of cancer, including gastric, cervical, lung, and glioma. Indeed, these lncRNAs are well-known tumor suppressors and are commonly downregulated in different types of tumors. Conversely, by modulating various mechanisms and oncogenic signaling pathways, their overexpression has been linked with preventing tumor formation and development. This review highlights the significance of these regulatory pathways in cancer and their potential for use in cancer therapy as diagnostic and prognostic markers.
Collapse
Affiliation(s)
- Roberta Giordo
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43B, 07100, Sassari, Italy
| | - Fatemeh Abdullah M. Ahmadi
- Department of Biomedical Science, College of Health Sciences, Member of QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Nedal Al Husaini
- Department of Biomedical Science, College of Health Sciences, Member of QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Noora Rashid A.M. Al-Nuaimi
- Department of Biomedical Science, College of Health Sciences, Member of QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Salma M.S. Ahmad
- Department of Biomedical Science, College of Health Sciences, Member of QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Gianfranco Pintus
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43B, 07100, Sassari, Italy
- Department of Medical Laboratory Sciences, College of Health Sciences and Sharjah Institute for Medical Research, University of Sharjah, University City Rd, Sharjah, 27272, United Arab Emirates
| | - Hatem Zayed
- Department of Biomedical Science, College of Health Sciences, Member of QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| |
Collapse
|
2
|
Chen XY, Cheng AY, Wang ZY, Jin JM, Lin JY, Wang B, Guan YY, Zhang H, Jiang YX, Luan X, Zhang LJ. Dbl family RhoGEFs in cancer: different roles and targeting strategies. Biochem Pharmacol 2024; 223:116141. [PMID: 38499108 DOI: 10.1016/j.bcp.2024.116141] [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: 01/26/2024] [Revised: 03/06/2024] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
Small Ras homologous guanosine triphosphatase (Rho GTPase) family proteins are highly associated with tumorigenesis and development. As intrinsic exchange activity regulators of Rho GTPases, Rho guanine nucleotide exchange factors (RhoGEFs) have been demonstrated to be closely involved in tumor development and received increasing attention. They mainly contain two families: the diffuse B-cell lymphoma (Dbl) family and the dedicator of cytokinesis (Dock) family. More and more emphasis has been paid to the Dbl family members for their abnormally high expression in various cancers and their correlation to poor prognosis. In this review, the common and distinctive structures of Dbl family members are discussed, and their roles in cancer are summarized with a focus on Ect2, Tiam1/2, P-Rex1/2, Vav1/2/3, Trio, KALRN, and LARG. Significantly, the strategies targeting Dbl family RhoGEFs are highlighted as novel therapeutic opportunities for cancer.
Collapse
Affiliation(s)
- Xin-Yi Chen
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ao-Yu Cheng
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zi-Ying Wang
- School of Biological Engineering, Tianjin University of Science&Technology, Tianjin 301617, China
| | - Jin-Mei Jin
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jia-Yi Lin
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Bei Wang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ying-Yun Guan
- Department of Pharmacy, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Hao Zhang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yi-Xin Jiang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Xin Luan
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Li-Jun Zhang
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| |
Collapse
|
3
|
OUP accepted manuscript. Carcinogenesis 2022; 43:705-715. [DOI: 10.1093/carcin/bgac039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/08/2022] [Accepted: 04/29/2022] [Indexed: 11/12/2022] Open
|
4
|
Wang B, Zheng B, Cao L, Liao K, Huang D, Zhang Y, Jiang Y, Zheng S. T-lymphoma invasion and metastasis 1 promotes invadopodia formation and is regulated by the PI3K/Akt signaling pathway in hepatocellular carcinoma. Exp Cell Res 2021; 407:112806. [PMID: 34487727 DOI: 10.1016/j.yexcr.2021.112806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 08/22/2021] [Accepted: 08/27/2021] [Indexed: 10/25/2022]
Abstract
At present, there are still many poorly understood aspects of the mechanisms underlying hepatocellular carcinoma (HCC) invasion and metastasis. Invadopodia are important structures for cancer cell invasion and metastasis. We determined that high T-lymphoma invasion and metastasis 1 (Tiam1) expression is associated with HCC invasion and metastasis and poor patient prognosis after surgery. Gain- and loss-of-function studies confirmed that Tiam1 promotes invadopodia formation in HCC by activating Rac1. A series of biochemical experiments confirmed that this effect is regulated by the PI3K/Akt signaling pathway. We also confirmed that PIP2 facilitates this effect. In summary, these findings reveal that Tiam1 plays an important role in invadopodia formation in HCC.
Collapse
Affiliation(s)
- Baolin Wang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China; Department of Surgery, The 63650th Troop Hospital of the Chinese People's Liberation Army, Urumqi, Xinjinag, 841700, China
| | - Bowen Zheng
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Li Cao
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Kexi Liao
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Deng Huang
- Department of Hepatobiliary, General Hospital of Tibet Military Command Area, Lhasa, Tibet, 850000, China
| | - Yujun Zhang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Yan Jiang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Shuguo Zheng
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
| |
Collapse
|
5
|
Tumor-associated mesenchymal stem cells promote hepatocellular carcinoma metastasis via a DNM3OS/KDM6B/TIAM1 axis. Cancer Lett 2021; 503:19-31. [PMID: 33472090 DOI: 10.1016/j.canlet.2021.01.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/12/2020] [Accepted: 01/13/2021] [Indexed: 02/06/2023]
Abstract
Tumor-associated mesenchymal stem cells (MSCs) play a critical role in the growth and metastasis of hepatocellular carcinoma (HCC). However, the mechanism underlying the crosstalk between MSCs and HCC cells is not completely understood. Here, HCC cells were treated with or without conditioned medium of MSCs (CM-MSC), and examined for differential expression of long non-coding RNAs (lncRNAs). Knockdown and overexpression experiments were conducted to explore the function of the lncRNA DNM3OS in MSC-induced HCC growth and metastasis. CM-MSC treatment led to a concentration-dependent induction of DNM3OS in HCC cells. DNM3OS was significantly upregulated in HCC compared to adjacent liver tissues. High DNM3OS expression was associated with TNM stage, vascular invasion, and poor prognosis of HCC patients. Silencing of DNM3OS inhibited HCC cell proliferation and invasion in vitro and tumorigenesis and metastasis in vivo. Overexpression of DNM3OS enhanced HCC cell proliferation, invasion, and metastasis. Biochemically, DNM3OS was mainly localized in the nucleus and physically interacted with KDM6B. The association of DNM3OS with KDM6B induced the expression of TIAM1 through reduction of H3K27me3 at the TIAM1 promoter. TIAM1 overexpression restored the proliferation and invasion of DNM3OS-depleted HCC cells. Our data delineate a mechanism by which MSCs accelerate HCC growth and metastasis through a DNM3OS/KDM6B/TIAM1 axis.
Collapse
|
6
|
Maltas J, Reed H, Porter A, Malliri A. Mechanisms and consequences of dysregulation of the Tiam family of Rac activators in disease. Biochem Soc Trans 2020; 48:2703-2719. [PMID: 33200195 DOI: 10.1042/bst20200481] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 12/14/2022]
Abstract
The Tiam family proteins - Tiam1 and Tiam2/STEF - are Rac1-specific Guanine Nucleotide Exchange Factors (GEFs) with important functions in epithelial, neuronal, immune and other cell types. Tiam GEFs regulate cellular migration, proliferation and survival, mainly through activating and directing Rac1 signalling. Dysregulation of the Tiam GEFs is significantly associated with human diseases including cancer, immunological and neurological disorders. Uncovering the mechanisms and consequences of dysregulation is therefore imperative to improving the diagnosis and treatment of diseases. Here we compare and contrast the subcellular localisation and function of Tiam1 and Tiam2/STEF, and review the evidence for their dysregulation in disease.
Collapse
Affiliation(s)
- Joe Maltas
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park SK10 4TG, U.K
| | - Hannah Reed
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park SK10 4TG, U.K
| | - Andrew Porter
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park SK10 4TG, U.K
| | - Angeliki Malliri
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park SK10 4TG, U.K
| |
Collapse
|
7
|
Maldonado MDM, Medina JI, Velazquez L, Dharmawardhane S. Targeting Rac and Cdc42 GEFs in Metastatic Cancer. Front Cell Dev Biol 2020; 8:201. [PMID: 32322580 PMCID: PMC7156542 DOI: 10.3389/fcell.2020.00201] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/09/2020] [Indexed: 12/20/2022] Open
Abstract
The Rho family GTPases Rho, Rac, and Cdc42 have emerged as key players in cancer metastasis, due to their essential roles in regulating cell division and actin cytoskeletal rearrangements; and thus, cell growth, migration/invasion, polarity, and adhesion. This review will focus on the close homologs Rac and Cdc42, which have been established as drivers of metastasis and therapy resistance in multiple cancer types. Rac and Cdc42 are often dysregulated in cancer due to hyperactivation by guanine nucleotide exchange factors (GEFs), belonging to both the diffuse B-cell lymphoma (Dbl) and dedicator of cytokinesis (DOCK) families. Rac/Cdc42 GEFs are activated by a myriad of oncogenic cell surface receptors, such as growth factor receptors, G-protein coupled receptors, cytokine receptors, and integrins; consequently, a number of Rac/Cdc42 GEFs have been implicated in metastatic cancer. Hence, inhibiting GEF-mediated Rac/Cdc42 activation represents a promising strategy for targeted metastatic cancer therapy. Herein, we focus on the role of oncogenic Rac/Cdc42 GEFs and discuss the recent advancements in the development of Rac and Cdc42 GEF-interacting inhibitors as targeted therapy for metastatic cancer, as well as their potential for overcoming cancer therapy resistance.
Collapse
Affiliation(s)
- Maria Del Mar Maldonado
- Department of Biochemistry, School of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Julia Isabel Medina
- Department of Biochemistry, School of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Luis Velazquez
- Department of Biochemistry, School of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Suranganie Dharmawardhane
- Department of Biochemistry, School of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| |
Collapse
|
8
|
Lian J, Zou Y, Huang L, Cheng H, Huang K, Zeng J, Chen L. Hepatitis B virus upregulates cellular inhibitor of apoptosis protein 2 expression via the PI3K/AKT/NF-κB signaling pathway in liver cancer. Oncol Lett 2020; 19:2043-2052. [PMID: 32194701 DOI: 10.3892/ol.2020.11267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 11/01/2019] [Indexed: 12/30/2022] Open
Abstract
Activation of antiapoptotic genes has been indicated as one of the factors that contributes to hepatitis B virus (HBV) infection-induced liver cancer. The cellular inhibitor of apoptosis protein 2 (cIAP2), a member of the IAP family, is upregulated in various types of cancer and serves as a potential treatment target. However, to the best of our knowledge, the importance of cIAP2 in HBV-induced liver cancer has not been investigated. In the present study, cIAP2 expression in liver cells in response to HBV infection and the underlying mechanism involved was investigated. Western blot analysis of clinical liver samples showed that higher cIAP2 expression was detected in HBV-positive non-cancerous tissue compared with that in HBV-negative non-cancerous tissue, and the expression was further increased in HBV-positive liver cancer tissue. Reverse transcription-quantitative PCR and western blot experiments performed on two liver cell lines also confirmed that cIAP2 expression was increased upon HBV infection at both the mRNA and protein levels. Promoter analysis revealed that HBV could activate cIAP2 promoter in an infection dose-dependent manner, and this activation involved a NF-κB-binding site in the cIAP2 promoter. Further analysis demonstrated that HBV enhanced NF-κB phosphorylation and nuclear translocation via the PI3K/AKT signaling pathway, leading to the binding and activation of cIAP2 promoter. The present data demonstrates that HBV-infection induces cIAP2 expression in the liver by activation of the PI3K/AKT/NF-κB signaling pathway through promoting the binding of NF-κB to cIAP2 promoter, which may lead to carcinogenesis. The findings from the present study provide more information for understanding HBV-induced liver cancer and also offer a potential target for treatment or diagnosis of this disease.
Collapse
Affiliation(s)
- Jianping Lian
- Department of Radiation Oncology, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong 510515, P.R. China.,Department of Oncology, The Affiliated Hospital of Jinggangshan University, Ji'an, Jiangxi 343000, P.R. China
| | - Yuanhua Zou
- Department of Rehabilitation, The Affiliated Hospital of Jinggangshan University, Ji'an, Jiangxi 343000, P.R. China
| | - Ling Huang
- Department of Oncology, The Affiliated Hospital of Jinggangshan University, Ji'an, Jiangxi 343000, P.R. China
| | - Hao Cheng
- Department of Nasopharyngeal Carcinoma, The First People's Hospital of Chenzhou, Southern Medical University, Chenzhou, Hunan 423000, P.R. China
| | - Kai Huang
- Department of Gastrointestinal Surgery, Jiangxi Provincial Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Junquan Zeng
- Department of Rehabilitation, The Affiliated Hospital of Jinggangshan University, Ji'an, Jiangxi 343000, P.R. China
| | - Longhua Chen
- Department of Radiation Oncology, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| |
Collapse
|
9
|
Chu CH, Chen JS, Chuang PC, Su CH, Chan YL, Yang YJ, Chiang YT, Su YY, Gean PW, Sun HS. TIAM2S as a novel regulator for serotonin level enhances brain plasticity and locomotion behavior. FASEB J 2020; 34:3267-3288. [PMID: 31908036 DOI: 10.1096/fj.201901323r] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 10/18/2019] [Accepted: 12/23/2019] [Indexed: 11/11/2022]
Abstract
TIAM2S, the short form of human T-cell lymphoma invasion and metastasis 2, can have oncogenic effects when aberrantly expressed in the liver or lungs. However, it is also abundant in healthy, non-neoplastic brain tissue, in which its primary function is still unknown. Here, we examined the neurobiological and behavioral significance of human TIAM2S using the human brain protein panels, a human NT2/D1-derived neuronal cell line model (NT2/N), and transgenic mice that overexpress human TIAM2S (TIAM2S-TG). Our data reveal that TIAM2S exists primarily in neurons of the restricted brain areas around the limbic system and in well-differentiated NT2/N cells. Functional studies revealed that TIAM2S has no guanine nucleotide exchange factor (GEF) activity and is mainly located in the nucleus. Furthermore, whole-transcriptome and enrichment analysis with total RNA sequencing revealed that TIAM2S-knockdown (TIAM2S-KD) was strongly associated with the cellular processes of the brain structural development and differentiation, serotonin-related signaling, and the diseases markers representing neurobehavioral developmental disorders. Moreover, TIAM2S-KD cells display decreased neurite outgrowth and reduced serotonin levels. Moreover, TIAM2S overexpressing TG mice show increased number and length of serotonergic fibers at early postnatal stage, results in higher serotonin levels at both the serum and brain regions, and higher neuroplasticity and hyperlocomotion in latter adulthood. Taken together, our results illustrate the non-oncogenic functions of human TIAM2S and demonstrate that TIAM2S is a novel regulator of serotonin level, brain neuroplasticity, and locomotion behavior.
Collapse
Affiliation(s)
- Chun-Hsien Chu
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Jia-Shing Chen
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Pei-Chin Chuang
- Department of Medical Research, Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Hao Su
- Institute for Translational Research in Biomedicine, Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Ya-Ling Chan
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Ying-Ju Yang
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Ting Chiang
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Ya Su
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Wu Gean
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan.,Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - H Sunny Sun
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| |
Collapse
|
10
|
Abstract
BACKGROUND A number of studies have attempted to determine the prognostic value of T-cell lymphoma invasion and metastasis-inducing factor 1 (Tiam1) in patients with solid cancers, but the reported results were of inconsistency. Thus, we performed a systematic review and meta-analysis to exhaustively evaluate the prognostic role of Tiam1 expression in patients with solid cancers. METHODS We retrieved literature published in between 1994 and April 22th, 2019 through searching PubMed, Web of Science and China national knowledge infrastructure (CNKI). Hazard ratios (HRs) coupled with 95% confidence intervals (95% CIs) were used to assess the relationship of Tiam1 expression and overall survival (OS), and disease-free survival (DFS). RESULTS A total of 2647 patients with solid cancers in 20 studies were enrolled in our meta-analysis eventually. The pooled results showed that Tiam1 high expression was closely correlated with poor OS (HR = 2.17, 95% CI: 1.80-2.61, P = .000) and DFS (pooled HR = 1.95, 95% CI = 1.58-2.40, P = .000). Moreover, our subgroup analysis and sensitivity analysis demonstrated the reliability and stability of our pooled results. CONCLUSION In conclusion, this meta-analysis confirmed that Tiam1 higher expression positively correlated with OS and DFS, suggesting that Tiam1 may act as a valuable prognostic predictor and therapeutic target for patients with solid cancers. Nevertheless, in future more homogeneous and prospective studies should be performed to further support our findings.
Collapse
|
11
|
Poudel KR, Roh-Johnson M, Su A, Ho T, Mathsyaraja H, Anderson S, Grady WM, Moens CB, Conacci-Sorrell M, Eisenman RN, Bai J. Competition between TIAM1 and Membranes Balances Endophilin A3 Activity in Cancer Metastasis. Dev Cell 2018; 45:738-752.e6. [PMID: 29920278 DOI: 10.1016/j.devcel.2018.05.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 04/10/2018] [Accepted: 05/17/2018] [Indexed: 11/19/2022]
Abstract
Normal cells acquire aggressive behavior by modifying signaling pathways. For instance, alteration of endocytosis profoundly impacts both proliferation and migration during tumorigenesis. Here we investigate the mechanisms that enable the endocytic machinery to coordinate these processes. We show that a membrane curvature-sensing protein, endophilin A3, promotes growth and migration of colon cancer cells through two competing mechanisms: an endocytosis pathway that is required for proliferation and a GTPase regulatory pathway that controls cell motility. EndoA3 stimulates cell migration by binding the Rac GEF TIAM1 leading to activation of small GTPases. Competing interactions of EndoA3 with membrane versus TIAM1 modulate hyperproliferative and metastatic phenotypes. Disruption of EndoA3-membrane interactions stimulates TIAM1 and small GTPases in vitro, and further promotes pro-metastatic phenotypes in vivo. Together, these results uncover a coupling mechanism, by which EndoA3 promotes growth and migration of colon cancers, by linking membrane dynamics to GTPase regulation.
Collapse
Affiliation(s)
- Kumud R Poudel
- Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA
| | - Minna Roh-Johnson
- Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA
| | - Allen Su
- Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA
| | - Thuong Ho
- Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA
| | - Haritha Mathsyaraja
- Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA
| | - Sarah Anderson
- Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA
| | - William M Grady
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Cecilia B Moens
- Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA
| | | | - Robert N Eisenman
- Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA.
| | - Jihong Bai
- Basic Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Seattle, WA 98109, USA.
| |
Collapse
|
12
|
Ding M, Li Y, Yang Y, Zhu K, Che S, Lin Z, Chen L. Elevated expression of Tiam1 is associated with poor prognosis and promotes tumor progression in pancreatic cancer. Onco Targets Ther 2018; 11:4367-4375. [PMID: 30100742 PMCID: PMC6067591 DOI: 10.2147/ott.s171425] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Objective T-cell lymphoma invasion and metastasis inducing factor 1 (Tiam1) is known to be involved in tumor progression. However, its molecular roles and mechanism in pancreatic ductal adenocarcinoma (PDAC) remain unclear. The purpose of this study is to determine Tiam1 expression levels and investigate its underlying molecular mechanism in PDAC. Materials and methods Tiam1 protein expression levels in PDAC tissues were examined using immunohistochemistry. Tiam1 expression was confirmed in pancreatic cancer (PC) cells by Western blot and immunofluorescence staining. Tiam1-silenced PC cells were created using short interfering RNA. Subsequently, colony formation, scratch, and migration and invasion assays were carried out to explore the molecular mechanisms of Tiam1 in PC cells. Results The results indicated that Tiam1 expression was significantly higher in PDAC tissues than in paired non-tumor tissues, and overexpression of Tiam1 was significantly correlated with histological grade (P=0.040) and lymph node metastasis (P=0.031) in PDAC. The PDAC patients with high Tiam1 expression had significantly lower 5-year overall survival than patients with low Tiam1 expression. More importantly, univariate and multivariate analysis suggested that Tiam1 expression, along with lymph node metastasis, is a significant independent prognostic factor for patients with PDAC. Furthermore, we also demonstrated that the downregulation of Tiam1 was associated with decreased cell proliferation and reduced migratory and invasive capability. Conclusion High expression of Tiam1 plays a significant role in the progression of PDAC and may be a potential biomarker of poor prognosis as well as a therapeutic target.
Collapse
Affiliation(s)
- Mina Ding
- Department of Biochemistry and Molecular Biology, Yanbian University Medical College, Yanji 133002, China,
| | - Yue Li
- Department of Biochemistry and Molecular Biology, Yanbian University Medical College, Yanji 133002, China,
| | - Yang Yang
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China
| | - Kun Zhu
- Department of Biochemistry and Molecular Biology, Yanbian University Medical College, Yanji 133002, China,
| | - Shuanlong Che
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China
| | - Zhenhua Lin
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji 133002, China.,Department of Jilin Province, Key Laboratory of the Science and Technology, Yanji 133002, China,
| | - Liyan Chen
- Department of Biochemistry and Molecular Biology, Yanbian University Medical College, Yanji 133002, China, .,Department of Jilin Province, Key Laboratory of the Science and Technology, Yanji 133002, China,
| |
Collapse
|
13
|
Zhang Y, Huang J, Li Q, Chen K, Liang Y, Zhan Z, Ye F, Ni W, Chen L, Ding Y. Histone methyltransferase SETDB1 promotes cells proliferation and migration by interacting withTiam1 in hepatocellular carcinoma. BMC Cancer 2018; 18:539. [PMID: 29739365 PMCID: PMC5941371 DOI: 10.1186/s12885-018-4464-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 04/30/2018] [Indexed: 11/24/2022] Open
Abstract
Background SETDB1 is a histone H3K9 methyltransferase, which plays a significant role in the occurrence and progression of tumors. Previous studies have confirmed that T-lymphom invasion and metastasis gene (Tiam1) is a protein associated with the metastasis of hepatocellular carcinoma (HCC); however, we have not yet been successful in elucidating the specific mechanism of HCC. Methods Yeast two-hybrid test was conducted to screen proteins that interacted with Tiam1 gene. Glutathione-S-transferase (GST) pull-down and crosslinking-immunoprecipitation (CLIP) assays were performed to determine whether SETDB1 can interact with Tiam1 gene. A series of related experiments were performed to explore role of SETDB1 on cell proliferation, migration, and invasion in HCC. Recovery experiment was performed to investigate the effect of Tiam1 knockdown on cell proliferation and migration, which was caused by SETDB1 overexpression in HCC cells. The expression of SETDB1 was frequently upregulated in HCC tissues and positively correlated with Tiam1. Results GST pull-down and CLIP assays were performed to elucidate the interaction between SETDB1 and Tiam1. Cell proliferation, migration, and epithelial mesenchymal transformation (EMT) in HCC cells was promoted with the overexpression of SETDB1. Following the knockdown of Tiam1 gene, the effect of SETDB1 on cell proliferation and migration was reversed in HCC cells. The expression of SETDB1 was frequently up-regulated in HCC tissues, and it was positively correlated with Tiam1 gene. Conclusions Ours is the first study to prove that SETDB1 promotes the proliferation and migration of cells by forming SETDB1-Tiam1 compounds. We found that SETDB1-Tiam1 compounds were involved in a novel pathway, which regulated epigenetic modification of gene expression in HCC samples. Electronic supplementary material The online version of this article (10.1186/s12885-018-4464-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Yuqin Zhang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Jing Huang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Qisheng Li
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Keli Chen
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Yonghao Liang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Zetao Zhan
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Feng Ye
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Wen Ni
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Longhua Chen
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China.
| | - Yi Ding
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China.
| |
Collapse
|
14
|
Upregulation of Tiam1 contributes to cervical cancer disease progression and indicates poor survival outcome. Hum Pathol 2018; 75:179-188. [DOI: 10.1016/j.humpath.2018.02.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/23/2018] [Accepted: 02/01/2018] [Indexed: 12/22/2022]
|
15
|
Ikram M, Lim Y, Baek SY, Jin S, Jeong YH, Kwak JY, Yoon S. Co-targeting of Tiam1/Rac1 and Notch ameliorates chemoresistance against doxorubicin in a biomimetic 3D lymphoma model. Oncotarget 2017; 9:2058-2075. [PMID: 29416753 PMCID: PMC5788621 DOI: 10.18632/oncotarget.23156] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 11/16/2017] [Indexed: 12/11/2022] Open
Abstract
Lymphoma is a heterogeneous disease with a highly variable clinical course and prognosis. Improving the prognosis for patients with relapsed and treatment-resistant lymphoma remains challenging. Current in vitro drug testing models based on 2D cell culture lack natural tissue-like structural organization and result in disappointing clinical outcomes. The development of efficient drug testing models using 3D cell culture that more accurately reflects in vivo behaviors is vital. Our aim was to establish an in vitro 3D lymphoma model that can imitate the in vivo 3D lymphoma microenvironment. Using this model, we explored strategies to enhance chemosensitivity to doxorubicin, an important chemotherapeutic drug widely used for the treatment of hematological malignancies. Lymphoma cells grown in this model exhibited excellent biomimetic properties compared to conventional 2D culture including (1) enhanced chemotherapy resistance, (2) suppressed rate of apoptosis, (3) upregulated expression of drug resistance genes (MDR1, MRP1, BCRP and HIF-1α), (4) elevated levels of tumor aggressiveness factors including Notch (Notch-1, -2, -3, and -4) and its downstream molecules (Hes-1 and Hey-1), VEGF and MMPs (MMP-2 and MMP-9), and (5) enrichment of a lymphoma stem cell population. Tiam1, a potential biomarker of tumor progression, metastasis, and chemoresistance, was activated in our 3D lymphoma model. Remarkably, we identified two synergistic therapeutic oncotargets, Tiam1 and Notch, as a strategy to combat resistance against doxorubicin in EL4 T and A20 B lymphoma. Therefore, our data suggest that our 3D lymphoma model is a promising in vitro research platform for studying lymphoma biology and therapeutic approaches.
Collapse
Affiliation(s)
- Muhammad Ikram
- Department of Anatomy, Pusan National University School of Medicine, Yangsan 50612, Korea
| | - Yeseon Lim
- Department of Anatomy, Pusan National University School of Medicine, Yangsan 50612, Korea
| | - Sun-Yong Baek
- Department of Anatomy, Pusan National University School of Medicine, Yangsan 50612, Korea
| | - Songwan Jin
- Department of Mechanical Engineering, Korea Polytechnic University, Siheung 15073, Korea
| | - Young Hun Jeong
- Department of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea
| | - Jong-Young Kwak
- Department of Pharmacology, Ajou University School of Medicine, Suwon 16499, Korea
| | - Sik Yoon
- Department of Anatomy, Pusan National University School of Medicine, Yangsan 50612, Korea
| |
Collapse
|
16
|
Huang Z, Sun S, Yang C, Zheng J, Nan Y, Zhao R, Lang Z, Li H, Ma L. TIAM1 inhibits lung fibroblast differentiation in pulmonary fibrosis. Exp Ther Med 2017; 14:4254-4262. [PMID: 29067109 PMCID: PMC5647702 DOI: 10.3892/etm.2017.5024] [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: 07/19/2016] [Accepted: 06/16/2017] [Indexed: 11/16/2022] Open
Abstract
The differentiation of fibroblasts to myofibroblasts is critical for the development of idiopathic pulmonary fibrosis (IPF). T-cell lymphoma invasion and metastasis 1 (TIAM1) is known to be associated with amyotrophic lateral sclerosis 1 and colorectal cancer; however, its role in IPF is unclear. The aim of the present study was to investigate the expression and roles of TIAM1 in lung fibroblasts during pulmonary fibrosis. It was demonstrated that TIAM1 expression was significantly increased in fibrotic lung tissue and lung fibroblasts from bleomycin (BLM)-treated mice compared with control mice (P<0.05). TIAM1 expression and differentiation were significantly upregulated in human lung fibroblasts challenged with transforming growth factor-β (TGF-β) compared with unchallenged cells (P<0.05). Furthermore, inhibition of the nuclear factor (NF)-κB signaling pathway significantly attenuated TGF-β-induced TIAM1 expression and decreased fibroblast differentiation in human lung fibroblasts (P<0.05). Similarly, overexpression of TIAM1 significantly inhibited TGF-β-induced fibroblast differentiation, as indicated by decreased expression of fibronectin and α-smooth muscle actin (SMA; P<0.05). The results of the present study also demonstrated that TIAM1 knockdown increased TGF-β-induced fibroblast differentiation (P<0.05). These findings suggest that TIAM1 expression is associated with lung fibroblast differentiation in pulmonary fibrosis via an NF-κB-dependent pathway, and that TIAM1 inhibits lung fibroblast differentiation in pulmonary fibrosis.
Collapse
Affiliation(s)
- Zhicheng Huang
- Department of Radiology, Jilin Province Cancer Hospital, Changchun, Jilin 130012, P.R. China
| | - Shuangyan Sun
- Department of Radiology, Jilin Province Cancer Hospital, Changchun, Jilin 130012, P.R. China
| | - Changliang Yang
- Department of Thoracic Oncology, Jilin Province Cancer Hospital, Changchun, Jilin 130012, P.R. China
| | - Jun Zheng
- Department of Radiology, Jilin Province Cancer Hospital, Changchun, Jilin 130012, P.R. China
| | - Yingji Nan
- Department of Radiology, Jilin Province Cancer Hospital, Changchun, Jilin 130012, P.R. China
| | - Ruikun Zhao
- Department of Radiology, Jilin Province Cancer Hospital, Changchun, Jilin 130012, P.R. China
| | - Zhiguo Lang
- Department of Radiology, Jilin Province Cancer Hospital, Changchun, Jilin 130012, P.R. China
| | - Hang Li
- The First Division of Chest Medicine, Jilin Province Cancer Hospital, Changchun, Jilin 130012, P.R. China
| | - Lixia Ma
- Department of Thoracic Oncology, Jilin Province Cancer Hospital, Changchun, Jilin 130012, P.R. China
| |
Collapse
|
17
|
Ni W, Zhang Y, Zhan Z, Ye F, Liang Y, Huang J, Chen K, Chen L, Ding Y. A novel lncRNA uc.134 represses hepatocellular carcinoma progression by inhibiting CUL4A-mediated ubiquitination of LATS1. J Hematol Oncol 2017; 10:91. [PMID: 28420424 PMCID: PMC5395742 DOI: 10.1186/s13045-017-0449-4] [Citation(s) in RCA: 164] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 03/23/2017] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the most common malignancies worldwide, and tumor recurrence and metastasis are major factors that contribute to the poor outcome of patients with HCC. Long noncoding RNAs (lncRNAs) are known to regulate different tumorigenic processes, and a growing body of evidence indicates that Hippo kinase signaling is inactivated in many cancers. However, the upstream lncRNA regulators of Hippo kinase signaling in HCC are poorly understood. METHODS Using a lncRNA microarray, we identified a novel lncRNA, uc.134, whose expression was significantly decreased in the highly aggressive HCC cell line HCCLM3 compared with MHCC97L cells. Furthermore, we evaluated uc.134 expression in clinical samples using in situ hybridization (ISH) and quantitative real-time polymerase chain reaction (qRT-PCR) analysis. The full-length transcript of uc.134 was confirmed using rapid amplification of cDNA ends (RACE) analyses. To investigate the biological function of uc.134, we performed gain-of-function and loss-of-function studies both in vitro and in vivo. The underlying mechanisms of uc.134 in HCC were investigated using RNA pulldown, RNA immunoprecipitation, ubiquitination assays, Western blotting, mRNA microarray analyses, and qRT-PCR analyses. RESULTS The ISH assay revealed that uc.134 expression was significantly decreased in 170 paraffin-embedded samples from patients with HCC compared with adjacent tissues and uc.134 expression directly correlated with patient prognosis. Furthermore, we defined a 1867-bp full-length transcript of uc.134 using 5'- and 3'-RACE analysis. The overexpression of uc.134 inhibited HCC cell proliferation, invasion, and metastasis in vitro and in vivo, whereas the knockdown of uc.134 produced the opposite results. Furthermore, we confirmed that uc.134 (1408-1867 nt) binds to CUL4A (592-759 aa region) and inhibits its nuclear export. Moreover, we demonstrated that uc.134 inhibits the CUL4A-mediated ubiquitination of LATS1 and increases YAPS127 phosphorylation to silence the target genes of YAP. Finally, a positive correlation between uc.134, LATS1, and pYAPS127 was confirmed in 90 paraffin-embedded samples by ISH and immunohistochemical staining. CONCLUSIONS Our study identifies that a novel lncRNA, uc.134, represses hepatocellular carcinoma progression by inhibiting the CUL4A-mediated ubiquitination of LATS1 and increasing YAPS127 phosphorylation. The use of this lncRNA may offer a promising treatment approach by inhibiting YAP and activating Hippo kinase signaling.
Collapse
Affiliation(s)
- Wen Ni
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yuqin Zhang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zetao Zhan
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Feng Ye
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yonghao Liang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jing Huang
- Cancer Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Keli Chen
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Longhua Chen
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Yi Ding
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China. .,Department of Pathology, Southern Medical University, Guangzhou, 510515, China.
| |
Collapse
|
18
|
Lin L, You J, Qian Y, Han Y, Xiong H, Zhu T, Xia K, Su T. The prognostic value of T Lymphoma Invasion and Metastasis 1 (TIAM1) expression in oral squamous cell carcinoma. J Biochem Mol Toxicol 2016; 31. [PMID: 27862620 DOI: 10.1002/jbt.21875] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/23/2016] [Accepted: 10/02/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Lu Lin
- Department of Stomatology, Beijing YouAn Hospital; Capital Medical University; Beijing 100069 People's Republic of China
| | - Jingmin You
- Department of Stomatology; The First People's Hospital of Changde; Changde 415003 People's Republic of China
| | - Yunmei Qian
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital; Central-South University; Changsha 410008 People's Republic of China
| | - Ying Han
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital; Central-South University; Changsha 410008 People's Republic of China
| | - Haofeng Xiong
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital; Central-South University; Changsha 410008 People's Republic of China
| | - Tengfei Zhu
- State Key Laboratory of Medical Genetics; Central South University; Changsha 410078 People's Republic of China
| | - Kun Xia
- State Key Laboratory of Medical Genetics; Central South University; Changsha 410078 People's Republic of China
| | - Tong Su
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital; Central-South University; Changsha 410008 People's Republic of China
| |
Collapse
|
19
|
Li H, Cui X, Chen D, Yang Y, Piao J, Lin Z, Yan G, Shen D. Clinical implication of Tiam1 overexpression in the prognosis of patients with serous ovarian carcinoma. Oncol Lett 2016; 12:3492-3498. [PMID: 27900026 DOI: 10.3892/ol.2016.5091] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 08/09/2016] [Indexed: 12/31/2022] Open
Abstract
T lymphoma invasion and metastasis 1 (Tiam1), a guanine nucleotide exchange factor, was originally identified as an invasion- and metastasis-inducing gene in T lymphoma cells. High expression levels of the human Tiam1 gene have been found in numerous human malignancies, suggesting a potential role as a modifier of tumor initiation and progression. However, little is known about the status of Tiam1 in ovarian carcinoma. The present study aimed to investigate the clinicopathological significance of high Tiam1 expression in serous ovarian carcinoma. Immunohistochemical staining for Tiam1 was performed in 182 patients with serous ovarian carcinoma, in 76 patients with ovarian borderline tumors and in 72 patients with benign ovarian tumors. Immunofluorescence staining was also performed to detect the subcellular localization of Tiam1 protein in SK-OV-3 ovarian carcinoma cells. The correlations between high Tiam1 expression and the clinicopathological features of the ovarian carcinomas were evaluated by the χ2 test and Fisher's exact test. The overall survival (OS) rates were calculated by the Kaplan-Meier method, and the association between prognostic factors and patient survival was analyzed by the Cox proportional hazard model. Tiam1 protein showed a cytoplasmic and nuclear staining pattern in ovarian carcinoma. Strongly-positive Tiam1 protein expression was observed in 59.3% (108/182) of ovarian carcinomas, which was significantly higher than in benign serous tumors (12.5%; 9/72). Moreover, the rate of strongly-positive Tiam1 expression in borderline serous tumors (31.6%; 24/76) was also significantly higher than that in benign serous tumors. High Tiam1 protein expression was closely associated with a high histological grade, metastasis, advanced clinical stage and lower OS rates in ovarian carcinoma. Multivariate analysis indicated that Tiam1 was an independent prognostic factor, along with metastasis and clinical stage, in patients with ovarian carcinoma. In conclusion, Tiam1 expression is strongly associated with grade and outcome in ovarian carcinoma, and may serve as a useful molecular marker for clinical management.
Collapse
Affiliation(s)
- Huiwen Li
- Cancer Research Center, Yanbian University, Yanji, Jilin 133002, P.R. China; Department of Pediatrics, Yanbian University Hospital, Yanji, Jilin 133000, P.R. China
| | - Xuelian Cui
- Cancer Research Center, Yanbian University, Yanji, Jilin 133002, P.R. China
| | - Dingbao Chen
- Department of Pathology, The People's Hospital of Beijing University, Beijing 100044, P.R. China
| | - Yang Yang
- Cancer Research Center, Yanbian University, Yanji, Jilin 133002, P.R. China
| | - Junjie Piao
- Cancer Research Center, Yanbian University, Yanji, Jilin 133002, P.R. China
| | - Zhenhua Lin
- Cancer Research Center, Yanbian University, Yanji, Jilin 133002, P.R. China
| | - Guanghai Yan
- Cancer Research Center, Yanbian University, Yanji, Jilin 133002, P.R. China
| | - Danhua Shen
- Department of Pathology, The People's Hospital of Beijing University, Beijing 100044, P.R. China
| |
Collapse
|
20
|
Delire B, Stärkel P. The Ras/MAPK pathway and hepatocarcinoma: pathogenesis and therapeutic implications. Eur J Clin Invest 2015; 45:609-23. [PMID: 25832714 DOI: 10.1111/eci.12441] [Citation(s) in RCA: 162] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 03/27/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is still a major health problem, often diagnosed at an advanced stage. The multikinase inhibitor sorafenib is to date the sole approved systemic therapy. Several signalling pathways are implicated in tumour development and progression. Among these pathways, the Ras/MAPK pathway is activated in 50-100% of human HCCs and is correlated with a poor prognosis. The aim of this work was to review the main intracellular mechanisms leading to aberrant Ras pathway activation in HCC and the potential therapeutic implications. MATERIALS AND METHODS This review is based on the material found on PubMed up to December 2014. 'Ras signaling, Ras dysregulation, Ras inhibition, MAPK pathway, cancer, hepatocarcinoma and liver cancer' alone or in combination were the main terms used for online research. RESULTS Multiple mechanisms lead to the deregulation of the Ras pathway in liver cancer. Ras and Raf gene mutations are rare events in human hepatocarcinogenesis in contrast to experimental models in rodents. Downregulation of several Ras/MAPK pathway inhibitors such as GAPs, RASSF proteins, DUSP1, Sprouty and Spred proteins is largely implicated in the aberrant activation of this pathway in the context of wild-type Ras and Raf genes. Epigenetic or post-transcriptional mechanisms lead to the downregulation of these tumour suppressor genes. CONCLUSION Ras/MAPK pathway effectors may be considered as potential therapeutic targets in the field of HCC. In particular after the arrival of sorafenib, more Ras/MAPK inhibitors have emerged and are still in preclinical or clinical investigation for HCC therapy.
Collapse
Affiliation(s)
- Bénédicte Delire
- Laboratory of Hepato-Gastroenterology, Institut de Recherche Expérimentale et Clinique (IREC), Catholic University of Louvain, Brussels, Belgium
| | - Peter Stärkel
- Laboratory of Hepato-Gastroenterology, Institut de Recherche Expérimentale et Clinique (IREC), Catholic University of Louvain, Brussels, Belgium.,Department of Gastroenterology, Saint-Luc Academic Hospital and Institute of Clinical Research, Catholic University of Louvain, Brussels, Belgium
| |
Collapse
|
21
|
Hu J, Lv G, Zhou S, Zhou Y, Nie B, Duan H, Zhang Y, Yuan X. The Downregulation of MiR-182 Is Associated with the Growth and Invasion of Osteosarcoma Cells through the Regulation of TIAM1 Expression. PLoS One 2015; 10:e0121175. [PMID: 25973950 PMCID: PMC4431740 DOI: 10.1371/journal.pone.0121175] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 01/28/2015] [Indexed: 01/28/2023] Open
Abstract
Background Osteosarcoma is the most common primary bone malignancy in children and young adults. Increasing results suggest that discovery of microRNAs (miRNAs) might provide a novel therapeutical target for osteosarcoma. Methods MiR-182 expression level in osteosarcoma cell lines and tissues were assayed by qRT-PCR. MiRNA mimics or inhibitor were transfected for up-regulation or down-regulation of miR-182 expression. Cell function was assayed by CCK8, migration assay and invasion assay. The target genes of miR-182 were predicated by bioinformatics algorithm (TargetScan Human). Results MiR-182 was down-regulated in osteosarcoma tissues and cell lines. Overexpression of miR-182 inhibited tumor growth, migration and invasion. Subsequent investigation revealed that TIAM1 was a direct and functional target of miR-182 in osteosarcoma cells. Overexpression of miR-182 impaired TIAM1-induced inhibition of proliferation and invasion in osteosarcoma cells. Conclusions Down-expression of miR-182 in osteosarcoma promoted tumor growth, migration and invasion by targeting TIAM1. MiR-182 might act as a tumor suppressor gene whose down-regulation contributes to the progression and metastasis of osteosarcoma, providing a potential therapy target for osteosarcoma patients.
Collapse
Affiliation(s)
- Jun Hu
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Department of Orthopedics, The First Hospital of Kunming, Kunming, Yunnan, China
| | - Guohua Lv
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- * E-mail:
| | - Shuguang Zhou
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Department of Orthopedics, The Affiliated Hospital of Hunan University of Medicine and The Third People’s Hospital of Huaihua, Huaihua, Hunan, China
| | - Yucheng Zhou
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Department of Orthopedics, The People’s Hospital of Qingyuan, Qingyuan, Guangdong, China
| | - Bangxu Nie
- Department of Orthopedics, The First Hospital of Kunming, Kunming, Yunnan, China
| | - Hong Duan
- Department of Orthopedics, The First Hospital of Kunming, Kunming, Yunnan, China
| | - Yunfeng Zhang
- Department of Orthopedics, The First Hospital of Kunming, Kunming, Yunnan, China
| | - Xiaofeng Yuan
- Department of Orthopedics, The First Hospital of Kunming, Kunming, Yunnan, China
| |
Collapse
|
22
|
Chen G, Lu L, Liu C, Shan L, Yuan D. MicroRNA-377 suppresses cell proliferation and invasion by inhibiting TIAM1 expression in hepatocellular carcinoma. PLoS One 2015; 10:e0117714. [PMID: 25739101 PMCID: PMC4349803 DOI: 10.1371/journal.pone.0117714] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 12/30/2014] [Indexed: 12/14/2022] Open
Abstract
Increasing evidence has suggested that microRNAs (miRNAs) play an important role in the initiation and progression of hepatocellular carcinoma (HCC). Here, we identified a novel tumor suppressive miRNA, miR-377, and investigated its role in HCC. The expression of miR-377 in HCC tissues and cell lines was detected by real-time reverse-transcription PCR. The effects of miR-377 on HCC cell proliferation and invasion were also investigated. Western blot and luciferase reporter assay were used to identify the direct and functional target of miR-377. The expression of miR-377 was markedly downregulated in human HCC tissues and cell lines. MiR-377 can dramatically inhibit cell growth and invasion in HCC cells. Subsequent investigation revealed that T lymphoma invasion and metastasis 1 (TIAM1) was a direct and functional target of miR-377 in HCC cells. Overexpression of miR-377 impaired TIAM1-induced promotion of proliferation and invasion in HCC cells. Finally, miR-377 is inversely correlated with TIAM1 expression in human HCC tissues. These findings reveal that miR-377 functions as a tumor suppressor and inhibits the proliferation and invasion of HCC cells by targeting TIAM1, which may consequently serve as a therapeutic target for HCC patients.
Collapse
Affiliation(s)
- Guolin Chen
- The First Ward of Infection Department, the First Clinical Hospital Affiliated to Harbin Medical University, Harbin, Heilongjiang, China
| | - Lu Lu
- Department of Medical Oncology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Chang Liu
- The First Ward of Infection Department, the First Clinical Hospital Affiliated to Harbin Medical University, Harbin, Heilongjiang, China
| | - Lei Shan
- The First Ward of Infection Department, the First Clinical Hospital Affiliated to Harbin Medical University, Harbin, Heilongjiang, China
| | - Di Yuan
- Clinical Laboratory, The First Clinical Hospital Affiliated to Harbin Medical University, Harbin, Heilongjiang, China
- * E-mail:
| |
Collapse
|
23
|
WANG SHUANG, LI SHISHENG, TANG QINGLAI, YANG SHU, WANG SHUHUI, LIU JIAJIA, YANG MI, YANG XINMING. Overexpression of Tiam1 promotes the progression of laryngeal squamous cell carcinoma. Oncol Rep 2015; 33:1807-14. [DOI: 10.3892/or.2015.3785] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 01/21/2015] [Indexed: 11/06/2022] Open
|
24
|
Pan J, Zhao X, Lin C, Xu H, Yin Z, Liu T, Zhang S. Immune responsive gene 1, a novel oncogene, increases the growth and tumorigenicity of glioma. Oncol Rep 2014; 32:1957-66. [PMID: 25216059 DOI: 10.3892/or.2014.3474] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 08/04/2014] [Indexed: 11/06/2022] Open
Abstract
Immune responsive gene 1 (IRG1) is highly expressed in mammalian macrophages during inflammation. However, the role of IRG1 in tumorigenesis remains unclear. In the present study, we aimed to clarify the epigenetic regulation and biological functions of IRG1 in glioma. We found that the expression level of IRG1 influenced the WHO stage in 140 glioma patients. Overexpression of IRG1 increased the growth, invasion, and tumorigenesis in U251 and SHG-44 glioma cells both in vitro and in vivo. Suppression of IRG1 expression by si-IRG1 decreased the levels of cell cycle regulatory proteins, namely, E2F1, p21, CDK4, CDK6 and cyclin D1. Knockdown of IRG1 expression by RNA interference increased E-cadherin expression and decreased the amounts of snail and vimentin. Furthermore, the suppression of IRG1 expression inhibited the expression of NF-κB and STAT3, suggesting a role of IRG1 in regulating the genes associated with these factors and thereby contributing to a decrease in glioma cell proliferation, migration and invasion. Collectively, our findings revealed that IRG1 is a candidate oncogene that is amplified in glioma and is involved in novel mechanisms that influence glioma pathogenesis.
Collapse
Affiliation(s)
- Jun Pan
- The National Key Clinic Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Xiaoyong Zhao
- Department of Neurosurgery, Huadu Hospital, Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Chunnan Lin
- The National Key Clinic Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Hongchao Xu
- The National Key Clinic Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Zhilin Yin
- The National Key Clinic Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Tianzhu Liu
- The National Key Clinic Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Shizhong Zhang
- The National Key Clinic Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| |
Collapse
|
25
|
López de Maturana E, Ibáñez-Escriche N, González-Recio Ó, Marenne G, Mehrban H, Chanock SJ, Goddard ME, Malats N. Next generation modeling in GWAS: comparing different genetic architectures. Hum Genet 2014; 133:1235-53. [DOI: 10.1007/s00439-014-1461-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 06/05/2014] [Indexed: 12/14/2022]
|
26
|
Ding Y, Chen B, Huang J, Zhang W, Yang H, Deng Y, Lin J, Wang S, Zhang X. Overexpression of Tiam1 is associated with malignant phenotypes of nasopharyngeal carcinoma. Oncol Rep 2014; 32:607-18. [PMID: 24912585 DOI: 10.3892/or.2014.3241] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 05/20/2014] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to analyze the roles of T lymphoma invasion and metastasis 1 (Tiam1) in nasopharyngeal carcinoma (NPC) progression and its correlation with clinicopathological features, including the survival of patients with NPC. Tiam1 protein expression in NPC tissues was examined using immunohistochemistry. Reverse transcription-polymerase chain reaction (RT-PCR) and immunofluorescence staining were performed to detect the expression of Tiam1 in 6 NPC cell lines. Stable Tiam1-overexpressing NPC cells using a transfection technique and Tiam1-silencing NPC cells using short hairpin RNA were constructed. Subsequently, MTT assay, plate and soft agar colony formation assays, cell adhesion, migration, invasion assays and experimental animal models were carried out to detect the biological functions of Tiam1 in vitro and in vivo. Immunohistochemical analysis revealed that Tiam1 had high expression in 96 of 140 (68.6%) paraffin-embedded archival NPC biopsies. Tiam1 overexpression was significantly associated with N classification (P=0.004), distant metastasis (P=0.042) and clinical stage (P=0.042). Patients with higher levels of Tiam1 expression had poorer overall survival (P=0.002). Multivariate analysis revealed that Tiam1 expression is an independent prognostic indicator for the overall survival of NPC patients. Using the approaches of exogenous overexpression and the knockdown of Tiam1 expression, respectively, it was confirmed that Tiam1 promoted cell proliferation, adhesion, invasion and migration in vitro and in vivo. These data support the notion that Tiam1 plays an important role in the progression of NPC, and the overexpression of Tiam1 is associated with malignant phenotypes of NPC.
Collapse
Affiliation(s)
- Yi Ding
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Bin Chen
- Department of Academic Research and Medical Training, General Hospital of Guangzhou Military Command of PLA, Guangzhou, Guangdong 510515, P.R. China
| | - Jing Huang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Wenli Zhang
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Hongjun Yang
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Yongjian Deng
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Jie Lin
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Shuang Wang
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Xiangmei Zhang
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| |
Collapse
|
27
|
Tiam1 siRNA enhanced the sensitivity of sorafenib on esophageal squamous cell carcinoma in vivo. Tumour Biol 2014; 35:8249-58. [DOI: 10.1007/s13277-014-2083-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 05/08/2014] [Indexed: 10/25/2022] Open
|
28
|
Hofbauer SW, Krenn PW, Ganghammer S, Asslaber D, Pichler U, Oberascher K, Henschler R, Wallner M, Kerschbaum H, Greil R, Hartmann TN. Tiam1/Rac1 signals contribute to the proliferation and chemoresistance, but not motility, of chronic lymphocytic leukemia cells. Blood 2014; 123:2181-8. [PMID: 24501217 DOI: 10.1182/blood-2013-08-523563] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Signals from the tumor microenvironment promote the migration, survival, and proliferation of chronic lymphocytic leukemia (CLL) cells. Rho GTPases control various signaling pathways downstream of microenvironmental cues. Here, we analyze the function of Rac1 in the motility and proliferation of CLL cells. We found decreased transcription of the Rac guanine nucleotide exchange factors Tiam1 and Vav1 in unstimulated peripheral blood CLL cells with almost complete loss of Tiam1 but increased transcription of the potential Rac antagonist RhoH. Consistently, stimulation of CLL cells with the chemokine CXCL12 induced RhoA but not Rac1 activation, whereas chemokine-induced CLL cell motility was Rac1-independent. Coculture of CLL cells with activated T cells induced their activation and subsequent proliferation. Here, Tiam1 expression was induced in the malignant cells in line with increased Ki-67 and c-Myc expression. Rac1 or Tiam1 knockdown using siRNA or treatment with the Tiam1/Rac inhibitor NSC-23766 attenuated c-Myc transcription. Furthermore, treatment of CLL cells with NSC-23766 reduced their proliferation. Rac inhibition also antagonized the chemoresistance of activated CLL cells toward fludarabine. Collectively, our data suggest a dynamic regulation of Rac1 function in the CLL microenvironment. Rac inhibition could be of clinical use by selectively interfering with CLL cell proliferation and chemoresistance.
Collapse
MESH Headings
- Aminoquinolines/pharmacology
- Animals
- Antineoplastic Agents/pharmacology
- Cell Movement/genetics
- Cell Proliferation
- Cells, Cultured
- Drug Resistance, Neoplasm/genetics
- Gene Expression Regulation, Leukemic/drug effects
- Guanine Nucleotide Exchange Factors/antagonists & inhibitors
- Guanine Nucleotide Exchange Factors/physiology
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Mice
- NIH 3T3 Cells
- Pyrimidines/pharmacology
- RNA, Small Interfering/genetics
- Signal Transduction/physiology
- T-Lymphoma Invasion and Metastasis-inducing Protein 1
- rac1 GTP-Binding Protein/antagonists & inhibitors
- rac1 GTP-Binding Protein/physiology
Collapse
Affiliation(s)
- Sebastian W Hofbauer
- Laboratory for Immunological and Molecular Cancer Research, Third Medical Department with Hematology, Oncology, Hemostaseology, Infectiology, and Rheumatology, Oncologic Center, Paracelsus Medical University, Salzburg, Austria
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Liu S, Li Y, Qi W, Zhao Y, Huang A, Sheng W, Lei B, Lin P, Zhu H, Li W, Shen H. Expression of Tiam1 predicts lymph node metastasis and poor survival of lung adenocarcinoma patients. Diagn Pathol 2014; 9:69. [PMID: 24661909 PMCID: PMC3973616 DOI: 10.1186/1746-1596-9-69] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Accepted: 03/06/2014] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND To assess the value of Tiam1 in predicting lymph node metastasis and survival after curative resection in patients with lung adenocarcinoma. METHODS Immunohistochemical staining for Tiam1 was performed on 98 adenocarcinoma and 30 normal lung tissues. The association of Tiam1 protein expression with the clinicopathological characteristics and the prognosis of lung adenocarcinoma were subsequently assessed. RESULTS Immunohistochemical analysis showed that 60 of 98 (61.22%) adenocarcinoma tissues showed high expression of Tiam1, and high Tiam1 expression was significantly associated with advanced TNM stage (P < 0.0005) and lymph node status (P < 0.0005) of lung adenocarcinoma. Moreover, the lung adenocarcinoma patients with low Tiam1 expression had higher overall survival than patients with high Tiam1 expression (log rank value = 10.805, P = 0.001). High expression of Tiam1 predicted poor overall survival of patients in stages I + II (P = 0.006). Furthermore, multivariate analysis indicated that high expression of Tiam1 protein was an independent prognostic factor for overall survival (P = 0.011) in patients with lung adenocarcinoma. CONCLUSION These findings suggest for the first time that Tiam1 expression may be beneficial in predicting lymph node metastasis and survival of patients with lung adenocarcinoma. A future study will investigate whether Tiam1 can serve as a novel therapeutic target in lung adenocarcinoma. VIRTUAL SLIDES The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1377798917111123.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Hong Shen
- Department of Pathology, Nanfang Hospital, Southern Medical University, 510515 Tonghe, Guangzhou, People's Republic of China.
| |
Collapse
|
30
|
The guanine nucleotide exchange factor Tiam1: A Janus-faced molecule in cellular signaling. Cell Signal 2014; 26:483-91. [DOI: 10.1016/j.cellsig.2013.11.034] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 11/26/2013] [Indexed: 11/22/2022]
|
31
|
Liu Y, Ding Y, Huang J, Wang S, Ni W, Guan J, Li Q, Zhang Y, Ding Y, Chen B, Chen L. MiR-141 suppresses the migration and invasion of HCC cells by targeting Tiam1. PLoS One 2014; 9:e88393. [PMID: 24551096 PMCID: PMC3923786 DOI: 10.1371/journal.pone.0088393] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 01/06/2014] [Indexed: 12/15/2022] Open
Abstract
Background We have demonstrated that T lymphoma invasion and metastasis 1 (Tiam1) gene is associated with the poor prognosis of patients with hepatocellular carcinoma (HCC), and we used a computational approach to identify miR-141 as a Tiam1-targeting microRNA (miRNA). Here, we explored the function of miR-141 and the relationship between miR-141 and Tiam1 gene in HCC. Methods The miR-141 expression in HCC tissues and cell lines was detected and its roles in regulation of HCC cell proliferation, migration and invasion and target gene expression was investigated. Tiam1 was identified as a novel target of miR-141. Ethics statement: our study was approved by the Nanfang Hospital Medical Ethics Committee Ethics statement. Written informed consent was obtained before collection. Results Based on in situ hybridization (ISH) analysis, miR-141 was down-regulated in the same HCC samples. Kaplan-Meier analysis demonstrated that patients with low miR-141 expression had poorer overall survival rate than that of the patients with high miR-141 expression. Furthermore, multivariate Cox regression analysis indicated that miR-141 could serve as an independent prognostic factor in HCC. MiR-141 significantly inhibited in vitro cell proliferation, migration and invasion as proved by gain- and loss- of function studies, while the mRNA and protein levels of Tiam1 were reduced in cells over-expressing miR-141. Moreover, Tiam1 treatment antagonized this effect, while knockdown of Tiam1 by Tiam1 short hairpin RNA (shTiam1) induced inhibitory effects. Conclusions These findings indicated that miR-141 functions as a tumor suppressor and inhibits the migration and invasion of HCC cells by targeting Tiam1, which may provide novel prognostic and treatment strategies for HCC patients.
Collapse
Affiliation(s)
- Ying Liu
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, PR China
| | - Yi Ding
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, PR China
| | - Jing Huang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, PR China
- Department of Cancer Center of Affiliated Hospital, Guangdong Medical College, Zhanjiang, China
| | - Shuang Wang
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, People’s Republic of China
| | - Wen Ni
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, PR China
| | - Jian Guan
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, PR China
| | - Qisheng Li
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, PR China
| | - Yuqin Zhang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, PR China
| | - Yanqing Ding
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong Province, People’s Republic of China
| | - Bin Chen
- General Hospital of Guangzhou Military Command of PLA, Southern Medical University, Guangzhou, Guangdong Province, People’s Republic of China
- * E-mail: (BC); (LC)
| | - Longhua Chen
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, PR China
- * E-mail: (BC); (LC)
| |
Collapse
|
32
|
Li B, Song Y, Liu TJ, Cui YB, Jiang Y, Xie ZS, Xie SL. miRNA-22 suppresses colon cancer cell migration and invasion by inhibiting the expression of T-cell lymphoma invasion and metastasis 1 and matrix metalloproteinases 2 and 9. Oncol Rep 2013; 29:1932-8. [PMID: 23440286 DOI: 10.3892/or.2013.2300] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Accepted: 02/03/2013] [Indexed: 12/12/2022] Open
Abstract
Emerging evidence has demonstrated the altered expression of mRNAs in cancer development and progression. In this study, the precise role of miRNA-22 (miR-22) in colon cancer cells was investigated. Upon transfection with a miR-22 expression vector, the viability of HCT-116 human colon cancer cells was significantly reduced and tumor cell migration and invasion capacity were also suppressed. Computational in silico analysis predicted that T-cell lymphoma invasion and metastasis 1 (TIAM1) is a target gene of miR-22. This was confirmed by qRT-PCR and western blotting, which showed that miR-22 expression inhibited TIAM1 mRNA and protein expression, respectively. In addition, the expression of pro-invasive gene matrix metalloproteinases 2 and 9 (MMP-2 and MMP-9) and pro-angiogenic protein vascular endothelial growth factor (VEGF) were also reduced by miR-22 expression. Collectively, these data suggest that miR-22 may act as a tumor suppressor in colon cancer, most likely by targeting TIAM1 expression.
Collapse
Affiliation(s)
- Bo Li
- Department of Colorectal and Anal Surgery, The Third Affiliated Hospital of Jilin University, Changchun, Jilin, PR China
| | | | | | | | | | | | | |
Collapse
|
33
|
Guo X, Wang M, Jiang J, Xie C, Peng F, Li X, Tian R, Qin R. Balanced Tiam1-rac1 and RhoA drives proliferation and invasion of pancreatic cancer cells. Mol Cancer Res 2013; 11:230-9. [PMID: 23322732 DOI: 10.1158/1541-7786.mcr-12-0632] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Tiam1 is a rac1-specific guanine nucleotide exchange factor, and Tiam1-rac1 is involved in a number of cellular processes. Rac1 and RhoA act as molecular switches that cycle between GTP- and GDP-bound states to balance the activities of rac1 and RhoA. The downregulation of rac1 activity leads to upregulation of RhoA activity, which promotes invasion and migration of pancreatic cancers cells. At present, however, the role of Tiam1-rac1 and RhoA in pancreatic cancers is not fully understood. We found that Tiam1 was upregulated in pancreatic cancers and was significantly expressed in tumors without lymph node involvement or distant metastasis compared with cancers where there was involvement. Although Tiam1-rac1 signaling promoted pancreatic cancer cell proliferation and tumor growth via the Wnt signaling pathway in vitro and in vivo, inhibiting Tiam1-rac1 signaling did not prolong the overall survival time in vivo. This provided evidence that there was a balance between rac1 and RhoA activities in pancreatic cancers. Furthermore, only the combined inhibition of Tiam1-rac1 and RhoA had a beneficial effect on the growth of pancreatic cancers in vivo. Taken together, these results suggest that the progression of pancreatic tumors is partially controlled by the balance between Tiam1-rac1 and RhoA.
Collapse
Affiliation(s)
- Xingjun Guo
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province, PR China
| | | | | | | | | | | | | | | |
Collapse
|