1
|
Ding X, Gao X, Ren A, Xu J, Jiang X, Liang X, Xie K, Zhou Y, Hu C, Huang D. Sevoflurane enhances autophagy via Rac1 to attenuate lung ischaemia‒reperfusion injury. Chem Biol Interact 2024; 397:111078. [PMID: 38815668 DOI: 10.1016/j.cbi.2024.111078] [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: 03/26/2024] [Revised: 05/20/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
Sevoflurane can attenuate lung ischaemia‒reperfusion injury (LIRI). However, the protective mechanism is unclear. In this study, we developed a LIRI model in vivo that animals (SD, n = 15) were subjected to the administration of 2.2 % sevoflurane 30 min before the onset of left pulmonary artery clamping for 45 min, which was then followed by 60 min of reperfusion treatment. Then, transcriptome sequencing was used to analyse lung tissues. Autophagy inhibition (3-MA) and Rac1-overexpression transfection plasmids were used in BEAS-2B cells, and BEAS-2B cells were subjected to hypoxia reoxygenation (H/R) and sevoflurane treatment. In both animal tissue and cells, inflammatory cytokines and apoptotic and autophagy molecules were measured by quantitative real-time PCR, western blotting and immunostaining. As a result, decreased arterial partial oxygen and damage to the histological structure of lung tissues were observed in LIRI model rats, and these effects were reversed by sevoflurane treatment. Activation of inflammation (elevated IL-1β, IL-6, and TNF-α) and apoptosis (elevated cleaved caspase3/caspase3 and Bax, degraded expression of Bcl2) and inhibition of autophagy (elevated P62, degraded expression of Beclin1 and LC3-II/LC3I) in the model group were ameliorated by sevoflurane. Transcriptome sequencing indicated that the PI3K/Akt pathway regulated by Rac1 plays an important role in LIRI. Furthermore, overexpression of Rac1 in a cell line inhibited the protective effect of sevoflurane in LIRI. Autophagy inhibition (3-MA) also prevented the protective effect of sevoflurane on inflammation and apoptosis. As shown in the present study, sevoflurane enhances autophagy via Rac1/PI3K/AKT signalling to attenuate lung ischaemia‒reperfusion injury.
Collapse
Affiliation(s)
- Xian Ding
- Department of Anesthesiology, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, 214000, China
| | - Xiang Gao
- Department of Anesthesiology, The Affiliated Fujian Maternity and Child Health Hospital of Fujian Medical University, 350001, China
| | - Aolin Ren
- Department of Anesthesiology and Pain Medicine, Jiangnan University Medical Center, Wuxi No.2 People's Hospital, 214002, China
| | - Jingjing Xu
- Department of Anesthesiology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, 214023, China
| | - Xuliang Jiang
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, 200030, China
| | - Xiao Liang
- Department of Anesthesiology and Pain Medicine, Jiangnan University Medical Center, Wuxi No.2 People's Hospital, 214002, China
| | - Kangjie Xie
- Department of Anesthesiology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Research Center for Neuro-Oncology Interaction, Institute of Basic Medicine and Cancer, Chinese Academy of Sciences, China
| | - Yan Zhou
- Department of Anesthesiology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, 214023, China
| | - Chunxiao Hu
- Department of Anesthesiology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, 214023, China
| | - Dongxiao Huang
- Department of Anesthesiology and Pain Medicine, Jiangnan University Medical Center, Wuxi No.2 People's Hospital, 214002, China.
| |
Collapse
|
2
|
Bischof L, Schweitzer F, Heinisch JJ. Functional Conservation of the Small GTPase Rho5/Rac1-A Tale of Yeast and Men. Cells 2024; 13:472. [PMID: 38534316 DOI: 10.3390/cells13060472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/02/2024] [Accepted: 03/06/2024] [Indexed: 03/28/2024] Open
Abstract
Small GTPases are molecular switches that participate in many essential cellular processes. Amongst them, human Rac1 was first described for its role in regulating actin cytoskeleton dynamics and cell migration, with a close relation to carcinogenesis. More recently, the role of Rac1 in regulating the production of reactive oxygen species (ROS), both as a subunit of NADPH oxidase complexes and through its association with mitochondrial functions, has drawn attention. Malfunctions in this context affect cellular plasticity and apoptosis, related to neurodegenerative diseases and diabetes. Some of these features of Rac1 are conserved in its yeast homologue Rho5. Here, we review the structural and functional similarities and differences between these two evolutionary distant proteins and propose yeast as a useful model and a device for high-throughput screens for specific drugs.
Collapse
Affiliation(s)
- Linnet Bischof
- AG Genetik, Fachbereich Biologie/Chemie, University of Osnabrück, Barbarastrasse 11, D-49076 Osnabrück, Germany
| | - Franziska Schweitzer
- AG Genetik, Fachbereich Biologie/Chemie, University of Osnabrück, Barbarastrasse 11, D-49076 Osnabrück, Germany
| | - Jürgen J Heinisch
- AG Genetik, Fachbereich Biologie/Chemie, University of Osnabrück, Barbarastrasse 11, D-49076 Osnabrück, Germany
| |
Collapse
|
3
|
Martínez‐López A, García‐Casas A, Infante G, González‐Fernández M, Salvador N, Lorente M, Mendiburu‐Eliçabe M, Gonzalez‐Moreno S, Villarejo‐Campos P, Velasco G, Malliri A, Castillo‐Lluva S. POTEE promotes breast cancer cell malignancy by inducing invadopodia formation through the activation of SUMOylated Rac1. Mol Oncol 2024; 18:620-640. [PMID: 38098337 PMCID: PMC10920093 DOI: 10.1002/1878-0261.13568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/23/2023] [Accepted: 12/13/2023] [Indexed: 12/29/2023] Open
Abstract
The small GTPase Rac1 (Ras-related C3 botulinum toxin substrate 1) has been implicated in cancer progression and in the poor prognosis of various types of tumors. Rac1 SUMOylation occurs during epithelial-mesenchymal transition (EMT), and it is required for tumor cell migration and invasion. Here we identify POTEE (POTE Ankyrin domain family member E) as a novel Rac1-SUMO1 effector involved in breast cancer malignancy that controls invadopodium formation through the activation of Rac1-SUMO1. POTEE activates Rac1 in the invadopodium by recruiting TRIO-GEF (triple functional domain protein), and it induces tumor cell proliferation and metastasis in vitro and in vivo. We found that the co-localization of POTEE with Rac1 is correlated with more aggressive breast cancer subtypes. Given its role in tumor dissemination, the leading cause of cancer-related deaths, POTEE could represent a potential therapeutic target for these types of cancer.
Collapse
Affiliation(s)
- Angélica Martínez‐López
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias QuímicasUniversidad Complutense de MadridSpain
- Instituto de Investigaciones Sanitarias San Carlos (IdISSC)MadridSpain
| | - Ana García‐Casas
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias QuímicasUniversidad Complutense de MadridSpain
- Instituto de Investigaciones Sanitarias San Carlos (IdISSC)MadridSpain
| | - Guiomar Infante
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias QuímicasUniversidad Complutense de MadridSpain
- Instituto de Investigaciones Sanitarias San Carlos (IdISSC)MadridSpain
| | - Mónica González‐Fernández
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias QuímicasUniversidad Complutense de MadridSpain
- Instituto de Investigaciones Sanitarias San Carlos (IdISSC)MadridSpain
| | - Nélida Salvador
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias QuímicasUniversidad Complutense de MadridSpain
- Instituto de Investigaciones Sanitarias San Carlos (IdISSC)MadridSpain
| | - Mar Lorente
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias QuímicasUniversidad Complutense de MadridSpain
- Instituto de Investigaciones Sanitarias San Carlos (IdISSC)MadridSpain
| | - Marina Mendiburu‐Eliçabe
- Departamento de Estadística e Investigación Operativa, Facultad de Ciencias MatemáticasUniversidad Complutense de MadridSpain
| | | | | | - Guillermo Velasco
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias QuímicasUniversidad Complutense de MadridSpain
- Instituto de Investigaciones Sanitarias San Carlos (IdISSC)MadridSpain
| | - Angeliki Malliri
- Cancer Research UK Manchester InstituteThe University of ManchesterUK
| | - Sonia Castillo‐Lluva
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias QuímicasUniversidad Complutense de MadridSpain
- Instituto de Investigaciones Sanitarias San Carlos (IdISSC)MadridSpain
| |
Collapse
|
4
|
Xu Y, Liu X, Cao J, Wu Y, Jiang Q, Luo B. Rho GTPase-activating protein 1 promotes hepatocellular carcinoma progression via modulation by CircPIP5K1A/MiR-101-3p. Hepatol Res 2024; 54:174-188. [PMID: 37792600 DOI: 10.1111/hepr.13972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 09/04/2023] [Accepted: 09/25/2023] [Indexed: 10/06/2023]
Abstract
AIM There has been an increased focus on regulating cell function with Rho family GTPases, including proliferation, migration/invasion, polarity, and adhesion. Due to the challenges involved in targeting Rho family GTPases directly, it may be more effective to target their regulators, such as Rho GTPase-activating protein 1 (ARHGAP1). This present research was performed to define the clinical significance of ARHGAP1 expression, as well as its regulatory mechanisms in hepatocellular carcinoma. METHODS ARHGAP1 and miR-101-3p expression of liver cancer patients, and their relevance with clinicopathological characteristics and prognosis were analyzed by the Cancer Genome Atlas sequencing data, and verified using samples of hepatocellular carcinoma patients. The interactions between miR-101-3p and ARHGAP1 or circPIP5K1A were validated by bioinformatic analyses, as well as confirmed by quantitative reverse transcription polymerase chain reaction, western blotting, and dual-luciferase reporter analysis. Plate clonality assays, cell adhesion and migration experiments, and proliferation experiments were used for assessing the participation of the circPIP5K1A/miR-101-3p/ARHGAP1 pathway in cell proliferation and motility. RESULTS Elevated ARHGAP1 and reduced miR-101-3p expression are related to poorer survival. MiR-101-3p targets ARHGAP1 to suppress hepatocellular carcinoma cell colony formation and invasion, whereas miR-101-3p inhibitor reverses liver cancer proliferation and metastasis suppression caused by ARHGAP1 knockdown. In addition, circPIP5K1A, which is mainly distributed in the cytosol, showed carcinogenic effects by sponging miR-101-3p, thus regulating ARHGAP1 expression. CONCLUSIONS ARHGAP1 serves as an oncogenic gene in liver cancer, and the expression thereof is regulated by circPIP5K1A through sponging miR-101-3p.
Collapse
Affiliation(s)
- Yanni Xu
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Xiaodi Liu
- Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Ultrasound Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jincheng Cao
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Ye Wu
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Qiongchao Jiang
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Baoming Luo
- Department of Ultrasound, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| |
Collapse
|
5
|
Jobst M, Hossain M, Kiss E, Bergen J, Marko D, Del Favero G. Autophagy modulation changes mechano-chemical sensitivity of T24 bladder cancer cells. Biomed Pharmacother 2024; 170:115942. [PMID: 38042111 DOI: 10.1016/j.biopha.2023.115942] [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: 07/14/2023] [Revised: 10/27/2023] [Accepted: 11/21/2023] [Indexed: 12/04/2023] Open
Abstract
Bladder cancer cells possess unique adaptive capabilities: shaped by their environment, cells face a complex chemical mixture of metabolites and xenobiotics accompanied by physiological mechanical cues. These responses might translate into resistance to chemotherapeutical regimens and can largely rely on autophagy. Considering molecules capable of rewiring tumor plasticity, compounds of natural origin promise to offer valuable options. Fungal derived metabolites, such as bafilomycin and wortmannin are widely acknowledged as autophagy inhibitors. Here, their potential to tune bladder cancer cells´ adaptability to chemical and physical stimuli was assessed. Additionally, dietary occurring mycotoxins were also investigated, namely deoxynivalenol (DON, 0.1-10 µM) and fusaric acid (FA, 0.1-1 mM). Endowing a Janus' face behavior, DON and FA are on the one side described as toxins with detrimental health effects. Concomitantly, they are also explored experimentally for selective pharmacological applications including anticancer activities. In non-cytotoxic concentrations, bafilomycin (BAFI, 1-10 nM) and wortmannin (WORT, 1 µM) modified cell morphology and reduced cancer cell migration. Application of shear stress and inhibition of mechano-gated PIEZO channels reduced cellular sensitivity to BAFI treatment (1 nM). Similarly, for FA (0.5 mM) PIEZO1 expression and inhibition largely aligned with the modulatory potential on cancer cells motility. Additionally, this study highlighted that the activity profile of compounds with similar cytotoxic potential (e.g. co-incubation DON with BAFI or FA with WORT) can diverge substantially in the regulation of cell mechanotransduction. Considering the interdependence between tumor progression and response to mechanical cues, these data promise to provide a novel viewpoint for the study of chemoresistance and associated pathways.
Collapse
Affiliation(s)
- Maximilian Jobst
- Department of Food Chemistry and Toxicology, University of Vienna Faculty of Chemistry, Währinger Str. 38-40, 1090 Vienna, Austria; Core Facility Multimodal Imaging, University of Vienna Faculty of Chemistry, Währinger Str. 38-40, 1090 Vienna, Austria; University of Vienna, Vienna Doctoral School in Chemistry (DoSChem), Währinger Str. 42, 1090 Vienna, Austria
| | - Maliha Hossain
- Department of Food Chemistry and Toxicology, University of Vienna Faculty of Chemistry, Währinger Str. 38-40, 1090 Vienna, Austria
| | - Endre Kiss
- Core Facility Multimodal Imaging, University of Vienna Faculty of Chemistry, Währinger Str. 38-40, 1090 Vienna, Austria
| | - Janice Bergen
- Department of Food Chemistry and Toxicology, University of Vienna Faculty of Chemistry, Währinger Str. 38-40, 1090 Vienna, Austria; Core Facility Multimodal Imaging, University of Vienna Faculty of Chemistry, Währinger Str. 38-40, 1090 Vienna, Austria; University of Vienna, Vienna Doctoral School in Chemistry (DoSChem), Währinger Str. 42, 1090 Vienna, Austria
| | - Doris Marko
- Department of Food Chemistry and Toxicology, University of Vienna Faculty of Chemistry, Währinger Str. 38-40, 1090 Vienna, Austria
| | - Giorgia Del Favero
- Department of Food Chemistry and Toxicology, University of Vienna Faculty of Chemistry, Währinger Str. 38-40, 1090 Vienna, Austria; Core Facility Multimodal Imaging, University of Vienna Faculty of Chemistry, Währinger Str. 38-40, 1090 Vienna, Austria.
| |
Collapse
|
6
|
Saracaloğlu A, Demiryürek Ş, Güngör K, Düzen B, Eronat Ö, Temiz E, Demiryürek AT. Expression Analysis of the Small GTP-Binding Protein Rac in Pterygium. Turk J Ophthalmol 2023; 53:343-348. [PMID: 38014881 PMCID: PMC10750086 DOI: 10.4274/tjo.galenos.2023.93765] [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: 03/06/2023] [Accepted: 05/06/2023] [Indexed: 11/29/2023] Open
Abstract
Objectives To determine the roles of small GTP-binding proteins Rac1, Rac2, and Rac3 expression in pterygial tissue and to compare these expressions with normal conjunctival tissue. Materials and Methods Seventy-eight patients with primary pterygium were enrolled. Healthy conjunctival graft specimens obtained during pterygium surgery were used as control tissue. The real-time polymerase chain reaction method on the BioMark HD dynamic array system was utilized in genomic mRNA for the gene expression analysis. Protein expressions were analyzed using western blot and immunohistochemical methods. Results RAC1, RAC2, and RAC3 gene expressions in pterygial tissues were not markedly elevated when compared to the control specimens (p>0.05). As a very low level of RAC1 gene expression was observed, further protein expression analysis was performed for the Rac2 and Rac3 proteins. Western blot and immunohistochemical analysis of Rac2 and Rac3 protein expression revealed no significant differences between pterygial and healthy tissues (p>0.05). Conclusion This is the first study to identify the contribution of Rac proteins in pterygium. Our results indicate that the small GTP-binding protein Rac may not be involved in pterygium pathogenesis.
Collapse
Affiliation(s)
- Ahmet Saracaloğlu
- Gaziantep University Faculty of Medicine, Department of Medical Pharmacology, Gaziantep, Türkiye
| | - Şeniz Demiryürek
- Gaziantep University Faculty of Medicine, Department of Physiology, Gaziantep, Türkiye
| | - Kıvanç Güngör
- Gaziantep University Faculty of Medicine, Department of Ophthalmology, Gaziantep, Türkiye
| | - Betül Düzen
- Gaziantep Dr. Ersin Arslan Training and Research Hospital, Clinic Ophthalmology, Gaziantep, Türkiye
| | - Ömer Eronat
- Gaziantep University Faculty of Medicine, Department of Pathology, Gaziantep, Türkiye
| | - Ebru Temiz
- Harran University Health Services Vocational School, Medical Promotion and Marketing, Şanlıurfa, Türkiye
| | | |
Collapse
|
7
|
Ma S, Wang Y, Li W, Qiu S, Zhang X, Niu R, Zhao F, Zheng Y. Integrated analysis identities Rho GTPases related molecular map in patients with gastric carcinoma. Sci Rep 2023; 13:21443. [PMID: 38052924 PMCID: PMC10698149 DOI: 10.1038/s41598-023-48294-z] [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: 06/06/2023] [Accepted: 11/24/2023] [Indexed: 12/07/2023] Open
Abstract
The intricate involvement of Rho GTPases in a multitude of human malignancies and their diverse array of biological functions has garnered substantial attention within the scientific community. However, their expression pattern and potential role in gastric cancer (GC) remain unclear. In this study, we successfully identified two distinct subtypes associated with Rho GTPase-related gene (RGG) through consensus clustering analysis, which exhibited significant disparities in overall survival and the tumor microenvironment. Subsequently, an extensively validated risk model termed RGGscore was meticulously constructed to prognosticate the outcomes of GC patients. This model was further assessed and validated using an external cohort. Notably, the high RGGscore group was indicative of a poorer prognosis. Univariate and multivariate Cox regression analyses unveiled the RGGscore as an autonomous prognostic indicator for GC patients. Subsequent external validation, utilizing two cohorts of patients who underwent immunotherapy, demonstrated a significant correlation between a low RGGscore and improved response to immunotherapy. Additionally, the expression levels of three genes associated with RGGscore were examined using qRT-PCR. Taken together, a pioneering RGGscore model has been successfully established, showcasing its potential efficacy in offering valuable therapeutic guidance for GC.
Collapse
Affiliation(s)
- Shaowei Ma
- Department of Gastrointestinal Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Ying Wang
- Department of Cardiology, Xingtai Third Hospital, Xingtai, 054000, China
| | - Weibo Li
- Department of Gastrointestinal Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Shaofan Qiu
- Department of Gastrointestinal Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Xiangyu Zhang
- Department of Gastrointestinal Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Ren Niu
- Department of Oncology, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China.
| | - Fangchao Zhao
- Department of Thoracic Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China.
| | - Yu Zheng
- Department of Gastrointestinal Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China.
| |
Collapse
|
8
|
Owens MC, Shen H, Yanas A, Mendoza-Figueroa MS, Lavorando E, Wei X, Shweta H, Tang HY, Goldman YE, Liu KF. Mutant forms of DDX3X with diminished catalysis form hollow condensates that exhibit sex-specific regulation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.19.533240. [PMID: 38076929 PMCID: PMC10705264 DOI: 10.1101/2023.03.19.533240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Mutations in the RNA helicase DDX3X, implicated in various cancers and neurodevelopmental disorders, often impair RNA unwinding and translation. However, the mechanisms underlying this impairment and the differential interactions of DDX3X mutants with wild-type (WT) X-linked DDX3X and Y-linked homolog DDX3Y remain elusive. This study reveals that specific DDX3X mutants more frequently found in disease form distinct hollow condensates in cells. Using a combined structural, biochemical, and single-molecule microscopy study, we show that reduced ATPase and RNA release activities contribute to condensate formation and the catalytic deficits result from inhibiting the catalytic cycle at multiple steps. Proteomic investigations further demonstrate that these hollow condensates sequester WT DDX3X/DDX3Y and other proteins crucial for diverse signaling pathways. WT DDX3X enhances the dynamics of heterogeneous mutant/WT hollow condensates more effectively than DDX3Y. These findings offer valuable insights into the catalytic defects of specific DDX3X mutants and their differential interactions with wild-type DDX3X and DDX3Y, potentially explaining sex biases in disease.
Collapse
|
9
|
Ginn L, Maltas J, Baker MJ, Chaturvedi A, Wilson L, Guilbert R, Amaral FMR, Priest L, Mole H, Blackhall F, Diamantopoulou Z, Somervaille TCP, Hurlstone A, Malliri A. A TIAM1-TRIM28 complex mediates epigenetic silencing of protocadherins to promote migration of lung cancer cells. Proc Natl Acad Sci U S A 2023; 120:e2300489120. [PMID: 37748077 PMCID: PMC10556593 DOI: 10.1073/pnas.2300489120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 08/03/2023] [Indexed: 09/27/2023] Open
Abstract
Lung cancer is the leading cause of cancer deaths. Its high mortality is associated with high metastatic potential. Here, we show that the RAC1-selective guanine nucleotide exchange factor T cell invasion and metastasis-inducing protein 1 (TIAM1) promotes cell migration and invasion in the most common subtype of lung cancer, non-small-cell lung cancer (NSCLC), through an unexpected nuclear function. We show that TIAM1 interacts with TRIM28, a master regulator of gene expression, in the nucleus of NSCLC cells. We reveal that a TIAM1-TRIM28 complex promotes epithelial-to-mesenchymal transition, a phenotypic switch implicated in cell migration and invasion. This occurs through H3K9me3-induced silencing of protocadherins and by decreasing E-cadherin expression, thereby antagonizing cell-cell adhesion. Consistently, TIAM1 or TRIM28 depletion suppresses the migration of NSCLC cells, while migration is restored by the simultaneous depletion of protocadherins. Importantly, high nuclear TIAM1 in clinical specimens is associated with advanced-stage lung adenocarcinoma, decreased patient survival, and inversely correlates with E-cadherin expression.
Collapse
Affiliation(s)
- Lucy Ginn
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, ManchesterM20 4BX, United Kingdom
| | - Joe Maltas
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, ManchesterM20 4BX, United Kingdom
| | - Martin J. Baker
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, ManchesterM20 4BX, United Kingdom
| | - Anshuman Chaturvedi
- The Christie National Health Service Foundation Trust, ManchesterM20 4BX, United Kingdom
| | - Leah Wilson
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, ManchesterM20 4BX, United Kingdom
| | - Ryan Guilbert
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, ManchesterM20 4BX, United Kingdom
| | - Fabio M. R. Amaral
- Leukaemia Biology Laboratory, Cancer Research UK Manchester Institute, The University of Manchester, ManchesterM20 4BX, United Kingdom
| | - Lynsey Priest
- The Christie National Health Service Foundation Trust, ManchesterM20 4BX, United Kingdom
| | - Holly Mole
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology Medicine and Health, The University of Manchester, ManchesterM13 9PT, United Kingdom
| | - Fiona Blackhall
- The Christie National Health Service Foundation Trust, ManchesterM20 4BX, United Kingdom
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology Medicine and Health, The University of Manchester, ManchesterM13 9PT, United Kingdom
| | - Zoi Diamantopoulou
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, ManchesterM20 4BX, United Kingdom
| | - Tim C. P. Somervaille
- Leukaemia Biology Laboratory, Cancer Research UK Manchester Institute, The University of Manchester, ManchesterM20 4BX, United Kingdom
| | - Adam Hurlstone
- Division of Immunology, Infection and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, ManchesterM13 9PT, United Kingdom
| | - Angeliki Malliri
- Cell Signalling Group, Cancer Research UK Manchester Institute, The University of Manchester, ManchesterM20 4BX, United Kingdom
| |
Collapse
|
10
|
Torres-Sanchez A, Rivera-Robles M, Castillo-Pichardo L, Martínez-Ferrer M, Dorta-Estremera SM, Dharmawardhane S. Rac and Cdc42 inhibitors reduce macrophage function in breast cancer preclinical models. Front Oncol 2023; 13:1152458. [PMID: 37397366 PMCID: PMC10313121 DOI: 10.3389/fonc.2023.1152458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/31/2023] [Indexed: 07/04/2023] Open
Abstract
Background Metastatic disease lacks effective treatments and remains the primary cause of mortality from epithelial cancers, especially breast cancer. The metastatic cascade involves cancer cell migration and invasion and modulation of the tumor microenvironment (TME). A viable anti-metastasis strategy is to simultaneously target the migration of cancer cells and the tumor-infiltrating immunosuppressive inflammatory cells such as activated macrophages, neutrophils, and myeloid-derived suppressor cells (MDSC). The Rho GTPases Rac and Cdc42 are ideal molecular targets that regulate both cancer cell and immune cell migration, as well as their crosstalk signaling at the TME. Therefore, we tested the hypothesis that Rac and Cdc42 inhibitors target immunosuppressive immune cells, in addition to cancer cells. Our published data demonstrate that the Vav/Rac inhibitor EHop-016 and the Rac/Cdc42 guanine nucleotide association inhibitor MBQ-167 reduce mammary tumor growth and prevent breast cancer metastasis from pre-clinical mouse models without toxic effects. Methods The potential of Rac/Cdc42 inhibitors EHop-016 and MBQ-167 to target macrophages was tested in human and mouse macrophage cell lines via activity assays, MTT assays, wound healing, ELISA assays, and phagocytosis assays. Immunofluorescence, immunohistochemistry, and flow cytometry were used to identify myeloid cell subsets from tumors and spleens of mice following EHop-016 or MBQ-167 treatment. Results EHop-016 and MBQ-167 inhibited Rac and Cdc42 activation, actin cytoskeletal extensions, migration, and phagocytosis without affecting macrophage cell viability. Rac/Cdc42 inhibitors also reduced tumor- infiltrating macrophages and neutrophils in tumors of mice treated with EHop-016, and macrophages and MDSCs from spleens and tumors of mice with breast cancer, including activated macrophages and monocytes, following MBQ-167 treatment. Mice with breast tumors treated with EHop-016 significantly decreased the proinflammatory cytokine Interleukin-6 (IL-6) from plasma and the TME. This was confirmed from splenocytes treated with lipopolysaccharide (LPS) where EHop-016 or MBQ-167 reduced IL-6 secretion in response to LPS. Conclusion Rac/Cdc42 inhibition induces an antitumor environment via inhibition of both metastatic cancer cells and immunosuppressive myeloid cells in the TME.
Collapse
Affiliation(s)
- Anamaris Torres-Sanchez
- Department of Biology, University of Puerto Rico, San Juan, Puerto Rico
- Department of Biochemistry, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico
| | - Michael Rivera-Robles
- Department of Biochemistry, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico
| | | | - Magaly Martínez-Ferrer
- Department of Pharmaceutical Sciences, School of Pharmacy, San Juan, Puerto Rico
- Division of Cancer Biology, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico
| | - Stephanie M. Dorta-Estremera
- Division of Cancer Biology, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico
- Department of Microbiology, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico
| | - Suranganie Dharmawardhane
- Department of Biochemistry, School of Medicine, University of Puerto Rico, San Juan, Puerto Rico
- Division of Cancer Biology, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico
| |
Collapse
|
11
|
Crespo GV, Ortiz J, O'Farrill EH, Vlaar CP, Inyushin M, Kucheryavykh Y, Kucheryavykh L. The Rac inhibitor HV-107 as a potential therapeutic for metastatic breast cancer. Mol Med 2023; 29:75. [PMID: 37316799 PMCID: PMC10268403 DOI: 10.1186/s10020-023-00678-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 06/05/2023] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND The significant challenge in treating triple-negative breast cancer (TNBC) lies in its high rate of distant metastasis. To address this, inhibiting metastasis formation in TNBC is vital. Rac is a key player in cancer metastasis. Previously, we developed Ehop-016, a Rac inhibitor that successfully reduced tumor growth and metastasis in mice. In this study, we assessed the effectiveness of HV-107, a derivative of Ehop-016, in inhibiting TNBC metastasis at lower doses. METHODS Rho GTPases activity assays were performed with the use of GST-PAK beads and Rac, Rho, and Cdc42 GLISA. Cell viability was assessed through trypan blue exclusion and MTT assays. Cell cycle analysis was conducted using flow cytometry. To evaluate invading capabilities, transwell assays and invadopodia formation assays were performed. Metastasis formation studies were conducted using a breast cancer xenograft mouse model. RESULTS HV-107 inhibited Rac activity by 50% in MDA-MB-231 and MDA-MB-468 cells at concentrations of 250-2000 nM, leading to a 90% decrease in invasion and invadopodia activity. Concentrations of 500 nM and above caused dose-dependent reductions in cell viability, resulting in up to 20% cell death after 72 h. Concentrations exceeding 1000 nM upregulated PAK1, PAK2, FAK, Pyk2, Cdc42, and Rho signallings, while Pyk2 was downregulated at 100-500 nM. Through in vitro experiments, optimal concentrations of HV-107 ranging from 250 to 500 nM were identified, effectively inhibiting Rac activity and invasion while minimizing off-target effects. In a breast cancer xenograft model, administration of 5 mg/kg HV-107 (administered intraperitoneally, 5 days a week) reduced Rac activity by 20% in tumors and decreased metastasis by 50% in the lungs and liver. No observed toxicity was noted at the tested doses. CONCLUSION The findings indicate that HV-107 exhibits promising potential as a therapeutic medication utilizing Rac inhibition mechanisms to address metastasis formation in TNBC.
Collapse
Affiliation(s)
- Grace Velez Crespo
- Department of Biochemistry, Universidad Central del Caribe, Bayamón, Puerto Rico.
| | - Jescelica Ortiz
- Department of Biochemistry, Universidad Central del Caribe, Bayamón, Puerto Rico
| | - Eliud Hernández O'Farrill
- Department of Pharmaceutical Science, School of Pharmacy, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico
| | - Cornelis P Vlaar
- Department of Biochemistry, School of Medicine, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico
| | - Mikhail Inyushin
- Department of Physiology, Universidad Central del Caribe, Bayamón, Puerto Rico
| | - Yuriy Kucheryavykh
- Department of Biochemistry, Universidad Central del Caribe, Bayamón, Puerto Rico
| | - Lilia Kucheryavykh
- Department of Biochemistry, Universidad Central del Caribe, Bayamón, Puerto Rico
| |
Collapse
|
12
|
Lodde GC, Jansen P, Herbst R, Terheyden P, Utikal J, Pföhler C, Ulrich J, Kreuter A, Mohr P, Gutzmer R, Meier F, Dippel E, Weichenthal M, Sucker A, Placke JM, Zaremba A, Albrecht LJ, Kowall B, Galetzka W, Becker JC, Tasdogan A, Zimmer L, Livingstone E, Hadaschik E, Schadendorf D, Ugurel S, Griewank K. Characterisation and outcome of RAC1 mutated melanoma. Eur J Cancer 2023; 183:1-10. [PMID: 36773463 DOI: 10.1016/j.ejca.2023.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 01/19/2023]
Abstract
BACKGROUND Activating hot spot R29S mutations in RAC1, a small GTPase influencing several cellular processes including cell proliferation and cytoskeleton rearrangement, have been reported in up to 9% of sun-exposed melanomas. Clinical characteristics and treatment implications of RAC1 mutations in melanoma remain unclear. METHODS We investigated the largest set (n = 64) of RAC1 mutated melanoma patients reported to date, including a retrospective single institution cohort (n = 34) from the University Hospital Essen and a prospective multicentre cohort (n = 30) from the translational study Tissue Registry in Melanoma (TRIM; CA209-578), for patient and tumour characteristics as well as therapy outcomes. RESULTS From 3037 sequenced melanoma samples screened RAC1 mutations occurred in ∼2% of samples (64/3037). The most common RAC1 mutation was P29S (95%, 61/64). The majority of tumours had co-occuring MAP kinase mutations (88%, 56/64); mostly activating NRAS (47%, 30/64) mutations, followed by activating BRAF (28%, 18/64) and NF1 (25%, 16/64) mutations. RAC1 mutated melanomas were almost exclusively of cutaneous origin (84%, 54/64) or of unknown primary (MUP, 14%, 9/64). C > T alterations were the most frequent mutation type identified demonstrating a UV-signature for RAC1 mutated melanoma. Most patients with unresectable disease (39) received immune checkpoint inhibitors (ICI) (77%, 30/39). Objective response rate of first-line treatment in patients with stage III/IV disease was 21%; median overall survival was 47.8 months. CONCLUSIONS RAC1 mutated melanomas are rare, mostly of cutaneous origin and frequently harbour concomitant MAP kinase mutations, particularly in NRAS. Patients with advanced disease benefit from systemic treatment with ICI.
Collapse
Affiliation(s)
- Georg C Lodde
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany.
| | - Philipp Jansen
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany; Department of Dermatology and Allergology, UK Bonn, Bonn, Germany.
| | - Rudolf Herbst
- Department of Dermatology, Helios Klinikum Erfurt, Erfurt, Germany.
| | | | - Jochen Utikal
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany, Department of Dermatology, Venereology and Allergology, Ruprecht-Karl University of Heidelberg, Mannheim, Germany, DFKZ-Hector Cancer Institute, University Medical Center Mannheim, Mannheim, Germany; German Consortium for Translational Cancer Research (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Claudia Pföhler
- Saarland University Medical School, Homburg, Department of Dermatology, Homburg/Saar, Germany.
| | - Jens Ulrich
- Department of Dermatology and Skin Cancer Center, Harzklinikum Dorothea Christiane Erxleben, Quedlinburg, Germany.
| | - Alexander Kreuter
- Department of Dermatology, Venereology and Allergology, HELIOS St. Elisabeth Klinik Oberhausen, University Witten/Herdecke, Oberhausen, Germany.
| | - Peter Mohr
- Dermatological Center Buxtehude, Elbe Kliniken Buxtehude, Buxtehude, Germany.
| | - Ralf Gutzmer
- Department of Dermatology, Venereology, Allergology and Phlebology, University Hospital Mühlenkreiskliniken Minden, Minden, Germany.
| | - Friedegund Meier
- Skin Cancer Center at the University Cancer Centre Dresden and National Center for Tumor Diseases, Dresden, Department of Dermatology, University Hospital Carl Gustav Carus, TU Dresden, Germany, National Center for Tumor Diseases Dresden (NCT/UCC), Germany, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden, Germany; German Consortium for Translational Cancer Research (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Edgar Dippel
- Department of Dermatology, Ludwigshafen Medical Center, Ludwigshafen, Germany.
| | - Michael Weichenthal
- Department of Dermatology, Skin Cancer Center, Schleswig-Holstein University Hospital, Campus Kiel, Kiel, Germany.
| | - Antje Sucker
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany.
| | - Jan-Malte Placke
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany.
| | - Anne Zaremba
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany.
| | - Lea Jessica Albrecht
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany.
| | - Bernd Kowall
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Essen, Germany.
| | - Wolfgang Galetzka
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Essen, Germany.
| | - Jürgen C Becker
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany; Translational Skin Cancer Research, University Medicine Essen, Essen, Germany; German Consortium for Translational Cancer Research (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Alpaslan Tasdogan
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany.
| | - Lisa Zimmer
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany.
| | - Elisabeth Livingstone
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany.
| | - Eva Hadaschik
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany.
| | - Dirk Schadendorf
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany; German Consortium for Translational Cancer Research (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Selma Ugurel
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany; German Consortium for Translational Cancer Research (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Klaus Griewank
- Department of Dermatology, Venereology and Allergology, University Hospital Essen, Essen, Germany.
| |
Collapse
|
13
|
Song S, Jung S, Kwon M. Expanding roles of centrosome abnormalities in cancers. BMB Rep 2023; 56:216-224. [PMID: 36945828 PMCID: PMC10140484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/15/2023] [Accepted: 03/22/2023] [Indexed: 03/23/2023] Open
Abstract
Centrosome abnormalities are hallmarks of human cancers. Structural and numerical centrosome abnormalities correlate with tumor aggressiveness and poor prognosis, implicating that centrosome abnormalities could be a cause of tumorigenesis. Since Boveri made his pioneering recognition of the potential causal link between centrosome abnormalities and cancer more than a century ago, there has been significant progress in the field. Here, we review recent advances in the understanding of the causes and consequences of centrosome abnormalities and their connection to cancers. Centrosome abnormalities can drive the initiation and progression of cancers in multiple ways. For example, they can generate chromosome instability through abnormal mitosis, accelerating cancer genome evolution. Remarkably, it is becoming clear that the mechanisms by which centrosome abnormalities promote several steps of tumorigenesis are far beyond what Boveri had initially envisioned. We highlight various cancer-promoting mechanisms exerted by cells with centrosome abnormalities and how these cells possessing oncogenic potential can be monitored. [BMB Reports 2023; 56(4): 216-224].
Collapse
Affiliation(s)
- Soohyun Song
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea
- Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
| | - Surim Jung
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea
- Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
| | - Mijung Kwon
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea
- Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
| |
Collapse
|
14
|
Matarrese P, Vona R, Ascione B, Cittadini C, Tocci A, Mileo AM. Tumor Microenvironmental Cytokines Drive NSCLC Cell Aggressiveness and Drug-Resistance via YAP-Mediated Autophagy. Cells 2023; 12:cells12071048. [PMID: 37048121 PMCID: PMC10093141 DOI: 10.3390/cells12071048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
Dynamic reciprocity between cellular components of the tumor microenvironment and tumor cells occurs primarily through the interaction of soluble signals, i.e., cytokines produced by stromal cells to support cancer initiation and progression by regulating cell survival, differentiation and immune cell functionality, as well as cell migration and death. In the present study, we focused on the analysis of the functional response of non-small cell lung cancer cell lines elicited by the treatment with some crucial stromal factors which, at least in part, mimic the stimulus exerted in vivo on tumor cells by microenvironmental components. Our molecular and functional results highlight the role played by the autophagic machinery in the cellular response in terms of the invasive capacity, stemness and drug resistance of two non-small lung cancer cell lines treated with stromal cytokines, also highlighting the emerging role of the YAP pathway in the mutual and dynamic crosstalk between tumor cells and tumor microenvironment elements. The results of this study provide new insights into the YAP-mediated autophagic mechanism elicited by microenvironmental cytokines on non-small cell lung cancer cell lines and may suggest new potential strategies for future cancer therapeutic interventions.
Collapse
Affiliation(s)
- Paola Matarrese
- Oncology Unit, Center for Gender-Specific Medicine, Italian National Institute of Health, Viale Regina Elena, 299-00161 Rome, Italy
- Correspondence: (P.M.); (A.M.M.)
| | - Rosa Vona
- Oncology Unit, Center for Gender-Specific Medicine, Italian National Institute of Health, Viale Regina Elena, 299-00161 Rome, Italy
| | - Barbara Ascione
- Oncology Unit, Center for Gender-Specific Medicine, Italian National Institute of Health, Viale Regina Elena, 299-00161 Rome, Italy
| | - Camilla Cittadini
- Oncology Unit, Center for Gender-Specific Medicine, Italian National Institute of Health, Viale Regina Elena, 299-00161 Rome, Italy
| | - Annalisa Tocci
- Tumor Immunology and Immunotherapy Unit, IRCCS Regina Elena National Cancer Institute, Via Elio Chianesi, 53-00144 Rome, Italy
| | - Anna Maria Mileo
- Tumor Immunology and Immunotherapy Unit, IRCCS Regina Elena National Cancer Institute, Via Elio Chianesi, 53-00144 Rome, Italy
- Correspondence: (P.M.); (A.M.M.)
| |
Collapse
|
15
|
Immisch L, Papafotiou G, Gallarín Delgado N, Scheuplein V, Paschen A, Blankenstein T, Willimsky G. Targeting the recurrent Rac1P29S neoepitope in melanoma with heterologous high-affinity T cell receptors. Front Immunol 2023; 14:1119498. [PMID: 36875127 PMCID: PMC9978334 DOI: 10.3389/fimmu.2023.1119498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 02/02/2023] [Indexed: 02/18/2023] Open
Abstract
Recurrent neoepitopes are cancer-specific antigens common among groups of patients and therefore ideal targets for adoptive T cell therapy. The neoepitope FSGEYIPTV carries the Rac1P29S amino acid change caused by a c.85C>T missense mutation, which is the third most common hotspot mutation in melanoma. Here, we isolated and characterized TCRs to target this HLA-A*02:01-binding neoepitope by adoptive T cell therapy. Peptide immunization elicited immune responses in transgenic mice expressing a diverse human TCR repertoire restricted to HLA-A*02:01, which enabled isolation of high-affinity TCRs. TCR-transduced T cells induced cytotoxicity against Rac1P29S expressing melanoma cells and we observed regression of Rac1P29S expressing tumors in vivo after adoptive T cell therapy (ATT). Here we found that a TCR raised against a heterologous mutation with higher peptide-MHC affinity (Rac2P29L) more efficiently targeted the common melanoma mutation Rac1P29S. Overall, our study provides evidence for the therapeutic potential of Rac1P29S-specific TCR-transduced T cells and reveal a novel strategy by generating more efficient TCRs by heterologous peptides.
Collapse
Affiliation(s)
- Lena Immisch
- Institute of Immunology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,German Cancer Research Center, Heidelberg, Germany.,German Cancer Consortium, partner site Berlin, Berlin, Germany
| | - George Papafotiou
- Institute of Immunology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,German Cancer Research Center, Heidelberg, Germany.,German Cancer Consortium, partner site Berlin, Berlin, Germany
| | - Nerea Gallarín Delgado
- Institute of Immunology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Vivian Scheuplein
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Annette Paschen
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,German Cancer Consortium, partner site Essen, Essen, Germany
| | - Thomas Blankenstein
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany.,Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Gerald Willimsky
- Institute of Immunology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,German Cancer Research Center, Heidelberg, Germany.,German Cancer Consortium, partner site Berlin, Berlin, Germany.,Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany
| |
Collapse
|
16
|
Hofmann MC, Kunnimalaiyaan M, Wang JR, Busaidy NL, Sherman SI, Lai SY, Zafereo M, Cabanillas ME. Molecular mechanisms of resistance to kinase inhibitors and redifferentiation in thyroid cancers. Endocr Relat Cancer 2022; 29:R173-R190. [PMID: 35975971 PMCID: PMC9534048 DOI: 10.1530/erc-22-0129] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/16/2022] [Indexed: 11/08/2022]
Abstract
Protein kinases play critical roles in cell survival, proliferation, and motility. Their dysregulation is therefore a common feature in the pathogenesis of a number of solid tumors, including thyroid cancers. Inhibiting activated protein kinases has revolutionized thyroid cancer therapy, offering a promising strategy in treating tumors refractory to radioactive iodine treatment or cytotoxic chemotherapies. However, despite satisfactory early responses, these drugs are not curative and most patients inevitably progress due to drug resistance. This review summarizes up-to-date knowledge on various mechanisms that thyroid cancer cells develop to bypass protein kinase inhibition and outlines strategies that are being explored to overcome drug resistance. Understanding how cancer cells respond to drugs and identifying novel molecular targets for therapy still represents a major challenge for the treatment of these patients.
Collapse
Affiliation(s)
- Marie-Claude Hofmann
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Muthusamy Kunnimalaiyaan
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jennifer R. Wang
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Naifa L. Busaidy
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Steven I. Sherman
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Stephen Y. Lai
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mark Zafereo
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Maria E. Cabanillas
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| |
Collapse
|
17
|
Petracchini S, Hamaoui D, Doye A, Asnacios A, Fage F, Vitiello E, Balland M, Janel S, Lafont F, Gupta M, Ladoux B, Gilleron J, Maia TM, Impens F, Gagnoux-Palacios L, Daugaard M, Sorensen PH, Lemichez E, Mettouchi A. Optineurin links Hace1-dependent Rac ubiquitylation to integrin-mediated mechanotransduction to control bacterial invasion and cell division. Nat Commun 2022; 13:6059. [PMID: 36229487 PMCID: PMC9561704 DOI: 10.1038/s41467-022-33803-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 09/30/2022] [Indexed: 12/24/2022] Open
Abstract
Extracellular matrix (ECM) elasticity is perceived by cells via focal adhesion structures, which transduce mechanical cues into chemical signalling to conform cell behavior. Although the contribution of ECM compliance to the control of cell migration or division is extensively studied, little is reported regarding infectious processes. We study this phenomenon with the extraintestinal Escherichia coli pathogen UTI89. We show that UTI89 takes advantage, via its CNF1 toxin, of integrin mechanoactivation to trigger its invasion into cells. We identify the HACE1 E3 ligase-interacting protein Optineurin (OPTN) as a protein regulated by ECM stiffness. Functional analysis establishes a role of OPTN in bacterial invasion and integrin mechanical coupling and for stimulation of HACE1 E3 ligase activity towards the Rac1 GTPase. Consistent with a role of OPTN in cell mechanics, OPTN knockdown cells display defective integrin-mediated traction force buildup, associated with limited cellular invasion by UTI89. Nevertheless, OPTN knockdown cells display strong mechanochemical adhesion signalling, enhanced Rac1 activation and increased cyclin D1 translation, together with enhanced cell proliferation independent of ECM stiffness. Together, our data ascribe a new function to OPTN in mechanobiology.
Collapse
Affiliation(s)
- Serena Petracchini
- grid.508487.60000 0004 7885 7602Institut Pasteur, Université Paris Cité, CNRS UMR6047, INSERM U1306, Unité des Toxines Bactériennes, F-75015 Paris, France
| | - Daniel Hamaoui
- grid.462370.40000 0004 0620 5402Université Côte d’Azur, INSERM, C3M, Team Microbial Toxins in Host-Pathogen Interactions, Nice, France ,Equipe Labellisée Ligue Contre le Cancer, Nice, France
| | - Anne Doye
- grid.462370.40000 0004 0620 5402Université Côte d’Azur, INSERM, C3M, Team Microbial Toxins in Host-Pathogen Interactions, Nice, France ,Equipe Labellisée Ligue Contre le Cancer, Nice, France
| | - Atef Asnacios
- grid.463714.3Université Paris Cité, CNRS, Laboratoire Matière et Systèmes Complexes, UMR7057, F-75013 Paris, France
| | - Florian Fage
- grid.463714.3Université Paris Cité, CNRS, Laboratoire Matière et Systèmes Complexes, UMR7057, F-75013 Paris, France
| | - Elisa Vitiello
- grid.462689.70000 0000 9272 9931Université Grenoble Alpes, CNRS, LiPhy, F-38000 Grenoble, France
| | - Martial Balland
- grid.462689.70000 0000 9272 9931Université Grenoble Alpes, CNRS, LiPhy, F-38000 Grenoble, France
| | - Sebastien Janel
- grid.410463.40000 0004 0471 8845Université de Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR9017, CIIL—Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Frank Lafont
- grid.410463.40000 0004 0471 8845Université de Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR9017, CIIL—Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Mukund Gupta
- grid.461913.80000 0001 0676 2143Université Paris Cité, CNRS, Institut Jacques Monod, F-75013 Paris, France
| | - Benoit Ladoux
- grid.461913.80000 0001 0676 2143Université Paris Cité, CNRS, Institut Jacques Monod, F-75013 Paris, France
| | - Jerôme Gilleron
- grid.462370.40000 0004 0620 5402Université Côte d’Azur, INSERM, C3M, Team Cellular and Molecular Pathophysiology of Obesity and Diabetes, Nice, France
| | - Teresa M. Maia
- grid.511525.7VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium ,grid.5342.00000 0001 2069 7798Department of Biomolecular Medicine, Ghent University, Ghent, Belgium ,grid.11486.3a0000000104788040VIB Proteomics Core, VIB, Ghent, Belgium
| | - Francis Impens
- grid.511525.7VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium ,grid.5342.00000 0001 2069 7798Department of Biomolecular Medicine, Ghent University, Ghent, Belgium ,grid.11486.3a0000000104788040VIB Proteomics Core, VIB, Ghent, Belgium
| | - Laurent Gagnoux-Palacios
- grid.461605.0Université Côte d’Azur, CNRS, INSERM, Institut de Biologie Valrose (iBV), 06108 Nice, France
| | - Mads Daugaard
- grid.412541.70000 0001 0684 7796Vancouver Prostate Centre, Vancouver, BC V6H 3Z6 Canada ,grid.17091.3e0000 0001 2288 9830Department of Urologic Sciences, University of British Columbia, Vancouver, BC Canada
| | - Poul H. Sorensen
- grid.17091.3e0000 0001 2288 9830Department of Molecular Oncology, BC Cancer Research Center, University of British Columbia, Vancouver, BC V5Z1L3 Canada
| | - Emmanuel Lemichez
- grid.508487.60000 0004 7885 7602Institut Pasteur, Université Paris Cité, CNRS UMR6047, INSERM U1306, Unité des Toxines Bactériennes, F-75015 Paris, France ,grid.462370.40000 0004 0620 5402Université Côte d’Azur, INSERM, C3M, Team Microbial Toxins in Host-Pathogen Interactions, Nice, France ,Equipe Labellisée Ligue Contre le Cancer, Nice, France
| | - Amel Mettouchi
- grid.508487.60000 0004 7885 7602Institut Pasteur, Université Paris Cité, CNRS UMR6047, INSERM U1306, Unité des Toxines Bactériennes, F-75015 Paris, France ,grid.462370.40000 0004 0620 5402Université Côte d’Azur, INSERM, C3M, Team Microbial Toxins in Host-Pathogen Interactions, Nice, France ,Equipe Labellisée Ligue Contre le Cancer, Nice, France
| |
Collapse
|
18
|
Wei L, Wang W, Yao J, Cui Z, Xu Z, Ding H, Wu X, Wang D, Luo J, Ke ZJ. PACT promotes the metastasis of basal-like breast cancer through Rac1 SUMOylation and activation. Oncogene 2022; 41:4282-4294. [PMID: 35974143 DOI: 10.1038/s41388-022-02431-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 12/13/2022]
Abstract
Most basal-like breast cancers (BLBCs) are triple-negative breast cancers (TNBCs), which is associated with high malignancy, high rate of recurrence and distant metastasis, and poor prognosis among all types of breast cancer. However, there are currently no effective therapies for BLBC. Furthermore, chemoresistance limits the therapeutic options for BLBC treatment. In this study, we screen out protein activator of the interferon-induced protein kinase (PACT) as an essential gene in BLBC metastasis. We find that high PACT expression level was associated with poor prognosis among BLBC patients. In vivo and in vitro investigations indicated that PACT could regulate BLBC metastasis by interacting with SUMO-conjugating enzyme Ubc9 to stimulate the SUMOylation and thus consequently the activation of Rac1. BLBC patients receiving chemotherapy presents poorer prognosis with PACT high expression, and PACT disruption sensitizes experimental mammary tumor metastases to chemotherapy, thus providing insights to consider PACT as a potential therapeutic target to overcome acquired chemoresistance in BLBC.
Collapse
Affiliation(s)
- Luyao Wei
- The Academy of Integrative Medicine, Shanghai Key Laboratory of Health Identification and Assessment, Department of Biochemistry, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, PR China
| | - Wantao Wang
- The Academy of Integrative Medicine, Shanghai Key Laboratory of Health Identification and Assessment, Department of Biochemistry, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, PR China
| | - Junxia Yao
- Department of Pathology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, 1158 Gongyuan Road, Shanghai, 201700, PR China
| | - Zhengyu Cui
- Department of Internal Medicine of Traditional Chinese Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, PR China
| | - Zihang Xu
- Department of Internal Classic of Medicine, School of Basic Medicine Sciences, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, PR China
| | - Hanqing Ding
- The Academy of Integrative Medicine, Shanghai Key Laboratory of Health Identification and Assessment, Department of Biochemistry, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, PR China
| | - Xiaojun Wu
- Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, PR China
| | - Deheng Wang
- The Academy of Integrative Medicine, Shanghai Key Laboratory of Health Identification and Assessment, Department of Biochemistry, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, PR China
| | - Jia Luo
- Department of Pathology, University of Iowa Carver College of Medicine, 51 Newton Road, Iowa City, IA, 52242, USA
| | - Zun-Ji Ke
- The Academy of Integrative Medicine, Shanghai Key Laboratory of Health Identification and Assessment, Department of Biochemistry, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, PR China.
| |
Collapse
|
19
|
Ramos DFV, Mancuso RI, Contieri B, Duarte A, Paiva L, de Melo Carrilho J, Saad STO, Lazarini M. Rac GTPases in acute myeloid leukemia cells: Expression profile and biological effects of pharmacological inhibition. Toxicol Appl Pharmacol 2022; 442:115990. [PMID: 35331739 DOI: 10.1016/j.taap.2022.115990] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/10/2022] [Accepted: 03/17/2022] [Indexed: 12/17/2022]
Abstract
Acute myeloid leukemia (AML) is a highly heterogeneous hematological neoplasm with low survival rates. Thus, the investigation of new therapeutic targets is essential. The Rac subfamily of GTPase proteins has been shown to participate in the physiopathology of hematological malignancies. However, their expression and function in AML remain unclear. In this study, we evaluated Rac1, Rac2 and Rac3 gene expressions in AML and their impact on clinical outcomes. We further investigated the effects of the in vitro treatment with a Rac inhibitor (EHT-1864) on AML cell lines. Rac3 expression was increased in AML derived from myelodysplastic syndromes compared to healthy donors. Rac2 expression did not differ between AML patients and healthy donors, but de novo AML patients with higher Rac2 presented lower overall survival. Oncogenic pathway gene-sets related to AKT/mTOR were identified as associated with Rac1, Rac2 and Rac3 expressions. EHT-1864 treatment reduced the viability of OCI-AML3, KG1 and Kasumi-1 cells in a time and dose-dependent manner. In OCI-AML3 cells, treatment with EHT-1864 induced apoptosis, autophagy, and led to the accumulation of cells in the G1 phase of the cell cycle. These changes were concomitant with alterations in p53 and cyclins. Dowregulation of the PI3K/AKT/mTOR pathway was also observed. Interestingly, the combined treatment of EHT-1864 and low doses of daunorubicin enhanced OCI-AML3 cell apoptosis. In conclusion, Rac2 expression is a prognostic factor in AML and our preclinical results suggest that Rac inhibition may be an attractive mechanism to compose the antineoplastic strategy for this disease.
Collapse
Affiliation(s)
| | - Rubia Isler Mancuso
- Hematology and Bloood Transfusion Center, University of Campinas, Campinas, São Paulo, Brazil
| | - Bruna Contieri
- Department of Pharmaceutical Sciences, Federal University of São Paulo, Diadema, São Paulo, Brazil
| | - Adriana Duarte
- Hematology and Bloood Transfusion Center, University of Campinas, Campinas, São Paulo, Brazil
| | - Luciana Paiva
- Hematology and Bloood Transfusion Center, University of Campinas, Campinas, São Paulo, Brazil
| | | | | | - Mariana Lazarini
- Department of Pharmaceutical Sciences, Federal University of São Paulo, Diadema, São Paulo, Brazil; Hematology and Bloood Transfusion Center, University of Campinas, Campinas, São Paulo, Brazil.
| |
Collapse
|
20
|
Moehle EA, Higuchi-Sanabria R, Tsui CK, Homentcovschi S, Tharp KM, Zhang H, Chi H, Joe L, de los Rios Rogers M, Sahay A, Kelet N, Benitez C, Bar-Ziv R, Garcia G, Shen K, Frankino PA, Schinzel RT, Shalem O, Dillin A. Cross-species screening platforms identify EPS-8 as a critical link for mitochondrial stress and actin stabilization. SCIENCE ADVANCES 2021; 7:eabj6818. [PMID: 34714674 PMCID: PMC8555897 DOI: 10.1126/sciadv.abj6818] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
The dysfunction of mitochondria is associated with the physiological consequences of aging and many age-related diseases. Therefore, critical quality control mechanisms exist to protect mitochondrial functions, including the unfolded protein response of the mitochondria (UPRMT). However, it is still unclear how UPRMT is regulated in mammals with mechanistic discrepancies between previous studies. Here, we reasoned that a study of conserved mechanisms could provide a uniquely powerful way to reveal previously uncharacterized components of the mammalian UPRMT. We performed cross-species comparison of genetic requirements for survival under—and in response to—mitochondrial stress between karyotypically normal human stem cells and the nematode Caenorhabditis elegans. We identified a role for EPS-8/EPS8 (epidermal growth factor receptor pathway substrate 8), a signaling protein adaptor, in general mitochondrial homeostasis and UPRMT regulation through integrin-mediated remodeling of the actin cytoskeleton. This study also highlights the use of cross-species comparisons in genetic screens to interrogate cellular pathways.
Collapse
Affiliation(s)
- Erica A. Moehle
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Ryo Higuchi-Sanabria
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089
| | - C. Kimberly Tsui
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Stefan Homentcovschi
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Kevin M. Tharp
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Hanlin Zhang
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Hannah Chi
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Larry Joe
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Mattias de los Rios Rogers
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Arushi Sahay
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Naame Kelet
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Camila Benitez
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Raz Bar-Ziv
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Gilberto Garcia
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Koning Shen
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Phillip A. Frankino
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Robert T. Schinzel
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| | - Ophir Shalem
- Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadephia, PA 191004, USA
| | - Andrew Dillin
- Department of Molecular and Cellular Biology, Howard Hughes Medical Institute, The University of California, Berkeley, Berkeley, CA 94720, USA
| |
Collapse
|
21
|
Colón-Bolea P, García-Gómez R, Casar B. RAC1 Activation as a Potential Therapeutic Option in Metastatic Cutaneous Melanoma. Biomolecules 2021; 11:1554. [PMID: 34827551 PMCID: PMC8615836 DOI: 10.3390/biom11111554] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 12/21/2022] Open
Abstract
Metastasis is a complex process by which cancer cells escape from the primary tumor to colonize distant organs. RAC1 is a member of the RHO family of small guanosine triphosphatases that plays an important role in cancer migration, invasion, angiogenesis and metastasis. RAC1 activation has been related to most cancers, such as cutaneous melanoma, breast, lung, and pancreatic cancer. RAC1P29S driver mutation appears in a significant number of cutaneous melanoma cases. Likewise, RAC1 is overexpressed or hyperactivated via signaling through oncogenic cell surface receptors. Thus, targeting RAC1 represents a promising strategy for cutaneous melanoma therapy, as well as for inhibition of other signaling activation that promotes resistance to targeted therapies. In this review, we focus on the role of RAC1 in metastatic cutaneous melanoma emphasizing the anti-metastatic potential of RAC1- targeting drugs.
Collapse
Affiliation(s)
- Paula Colón-Bolea
- Instituto de Biomedicina y Biotecnología de Cantabria, Consejo Superior de Investigaciones Científicas—Universidad de Cantabria, 39011 Santander, Spain; (P.C.-B.); (R.G.-G.)
| | - Rocío García-Gómez
- Instituto de Biomedicina y Biotecnología de Cantabria, Consejo Superior de Investigaciones Científicas—Universidad de Cantabria, 39011 Santander, Spain; (P.C.-B.); (R.G.-G.)
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Berta Casar
- Instituto de Biomedicina y Biotecnología de Cantabria, Consejo Superior de Investigaciones Científicas—Universidad de Cantabria, 39011 Santander, Spain; (P.C.-B.); (R.G.-G.)
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| |
Collapse
|
22
|
Martínez-López A, García-Casas A, Bragado P, Orimo A, Castañeda-Saucedo E, Castillo-Lluva S. Inhibition of RAC1 activity in cancer associated fibroblasts favours breast tumour development through IL-1β upregulation. Cancer Lett 2021; 521:14-28. [PMID: 34419498 DOI: 10.1016/j.canlet.2021.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 08/11/2021] [Accepted: 08/14/2021] [Indexed: 11/26/2022]
Abstract
Cancer-associated fibroblasts (CAFs) are highly abundant stromal components in the tumour microenvironment. These cells contribute to tumorigenesis and indeed, they have been proposed as a target for anti-cancer therapies. Similarly, targeting the Rho-GTPase RAC1 has also been suggested as a potential therapeutic target in cancer. Here, we show that targeting RAC1 activity, either pharmacologically or by genetic silencing, increases the pro-tumorigenic activity of CAFs by upregulating IL-1β secretion. Moreover, inhibiting RAC1 activity shifts the CAF subtype to a more aggressive phenotype. Thus, as RAC1 suppresses the secretion of IL-1β by CAFs, reducing RAC1 activity in combination with the depletion of this cytokine should be considered as an interesting therapeutic option for breast cancer in which tumour cells retain intact IL-1β signalling.
Collapse
Affiliation(s)
- Angélica Martínez-López
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid, 28040, Spain; Laboratorio de Biología Celular del Cáncer, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Mexico
| | - Ana García-Casas
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid, 28040, Spain; Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid, 28040, Spain
| | - Paloma Bragado
- Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid, 28040, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense, Madrid, 28040, Spain
| | - Akira Orimo
- Department of Pathology and Oncology, Juntendo University School of Medicine, Tokyo, Japan
| | - Eduardo Castañeda-Saucedo
- Laboratorio de Biología Celular del Cáncer, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Mexico
| | - Sonia Castillo-Lluva
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid, 28040, Spain; Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid, 28040, Spain.
| |
Collapse
|
23
|
Koyuncu S, Loureiro R, Lee HJ, Wagle P, Krueger M, Vilchez D. Rewiring of the ubiquitinated proteome determines ageing in C. elegans. Nature 2021; 596:285-290. [PMID: 34321666 PMCID: PMC8357631 DOI: 10.1038/s41586-021-03781-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 06/29/2021] [Indexed: 12/20/2022]
Abstract
Ageing is driven by a loss of cellular integrity1. Given the major role of ubiquitin modifications in cell function2, here we assess the link between ubiquitination and ageing by quantifying whole-proteome ubiquitin signatures in Caenorhabditis elegans. We find a remodelling of the ubiquitinated proteome during ageing, which is ameliorated by longevity paradigms such as dietary restriction and reduced insulin signalling. Notably, ageing causes a global loss of ubiquitination that is triggered by increased deubiquitinase activity. Because ubiquitination can tag proteins for recognition by the proteasome3, a fundamental question is whether deficits in targeted degradation influence longevity. By integrating data from worms with a defective proteasome, we identify proteasomal targets that accumulate with age owing to decreased ubiquitination and subsequent degradation. Lowering the levels of age-dysregulated proteasome targets prolongs longevity, whereas preventing their degradation shortens lifespan. Among the proteasomal targets, we find the IFB-2 intermediate filament4 and the EPS-8 modulator of RAC signalling5. While increased levels of IFB-2 promote the loss of intestinal integrity and bacterial colonization, upregulation of EPS-8 hyperactivates RAC in muscle and neurons, and leads to alterations in the actin cytoskeleton and protein kinase JNK. In summary, age-related changes in targeted degradation of structural and regulatory proteins across tissues determine longevity.
Collapse
Affiliation(s)
- Seda Koyuncu
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Rute Loureiro
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Hyun Ju Lee
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Prerana Wagle
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Marcus Krueger
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - David Vilchez
- Cologne Excellence Cluster for Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany.
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.
- Faculty of Medicine, University Hospital Cologne, Cologne, Germany.
| |
Collapse
|
24
|
Borrero-García LD, Del Mar Maldonado M, Medina-Velázquez J, Troche-Torres AL, Velazquez L, Grafals-Ruiz N, Dharmawardhane S. Rac inhibition as a novel therapeutic strategy for EGFR/HER2 targeted therapy resistant breast cancer. BMC Cancer 2021; 21:652. [PMID: 34074257 PMCID: PMC8170972 DOI: 10.1186/s12885-021-08366-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 05/17/2021] [Indexed: 11/10/2022] Open
Abstract
Background Even though targeted therapies are available for cancers expressing oncogenic epidermal growth receptor (EGFR) and (or) human EGFR2 (HER2), acquired or intrinsic resistance often confounds therapy success. Common mechanisms of therapy resistance involve activating receptor point mutations and (or) upregulation of signaling downstream of EGFR/HER2 to Akt and (or) mitogen activated protein kinase (MAPK) pathways. However, additional pathways of resistance may exist thus, confounding successful therapy. Methods To determine novel mechanisms of EGFR/HER2 therapy resistance in breast cancer, gefitinib or lapatinib resistant variants were created from SKBR3 breast cancer cells. Syngenic therapy sensitive and resistant SKBR3 variants were characterized for mechanisms of resistance by mammosphere assays, viability assays, and western blotting for total and phospho proteins. Results Gefitinib and lapatinib treatments reduced mammosphere formation in the sensitive cells, but not in the therapy resistant variants, indicating enhanced mesenchymal and cancer stem cell-like characteristics in therapy resistant cells. The therapy resistant variants did not show significant changes in known therapy resistant pathways of AKT and MAPK activities downstream of EGFR/HER2. However, these cells exhibited elevated expression and activation of the small GTPase Rac, which is a pivotal intermediate of GFR signaling in EMT and metastasis. Therefore, the potential of the Rac inhibitors EHop-016 and MBQ-167 to overcome therapy resistance was tested, and found to inhibit viability and induce apoptosis of therapy resistant cells. Conclusions Rac inhibition may represent a viable strategy for treatment of EGFR/HER2 targeted therapy resistant breast cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08366-7.
Collapse
Affiliation(s)
- Luis D Borrero-García
- Department of Biochemistry, School of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Maria Del Mar Maldonado
- Department of Biochemistry, School of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Julia Medina-Velázquez
- Department of Biochemistry, School of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Angel L Troche-Torres
- 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
| | - Nilmary Grafals-Ruiz
- 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
|
25
|
Zheng W, Zhang J, Song Q, Xu Y, Zhu M, Ma J. Rac Family Small GTPase 3 Correlates with Progression and Poor Prognosis in Bladder Cancer. DNA Cell Biol 2021; 40:469-481. [PMID: 33600260 DOI: 10.1089/dna.2020.5613] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Bladder cancer (BC) is a common genitourinary malignancy worldwide. However, the molecular pathogenesis of BC remains unclear. The current study conducted bioinformatic analyses to discover key genes involved in BC progression. A total of 375 differentially expressed genes (DEGs) were screened in the GEO database and The Cancer Genome Atlas (TCGA) database, which were further evaluated by the core level in the protein-protein interaction network. RAC3 (Rac family small GTPase 3), one of the top hub genes, was focused on for its gene expression and prognostic value in BC. Immunohistochemical assays indicated elevated RAC3 levels in BC tissues compared with normal tissues. Overexpression of RAC3 expression was closely associated with poor differentiation (p = 0.035), advanced TNM stage (p = 0.014), lymph metastasis (p = 0.033), and recurrence (p < 0.001). Kaplan-Meier and Cox proportional hazards analyses demonstrated that high RAC3 expression indicated poor survival of BC patients, which could serve as an independent prognostic factor for overall survival (HR = 3.159, p = 0.023) and disease-free survival (HR = 4.633, p = 0.002). Moreover, bioinformatic analyses indicated that RAC3 might be correlated with malignant phenotypes and immune infiltration of BC. Taken together, RAC3 could be a novel prognostic biomarker for BC.
Collapse
Affiliation(s)
- Wenjie Zheng
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Jie Zhang
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Qianqian Song
- Department of Radiology, Wake Forest School of Medicine, One Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - Yuqing Xu
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Mengqi Zhu
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Jianguo Ma
- Department of Urology, Third Hospital of Hebei Medical University, Shijiazhuang, China
| |
Collapse
|
26
|
Matarrese P, Vona R, Ascione B, Paggi MG, Mileo AM. Physical Interaction between HPV16E7 and the Actin-Binding Protein Gelsolin Regulates Epithelial-Mesenchymal Transition via HIPPO-YAP Axis. Cancers (Basel) 2021; 13:cancers13020353. [PMID: 33477952 PMCID: PMC7836002 DOI: 10.3390/cancers13020353] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 01/15/2021] [Indexed: 02/07/2023] Open
Abstract
Human papillomavirus 16 (HPV16) exhibits a strong oncogenic potential mainly in cervical, anogenital and oropharyngeal cancers. The E6 and E7 viral oncoproteins, acting via specific interactions with host cellular targets, are required for cell transformation and maintenance of the transformed phenotype as well. We previously demonstrated that HPV16E7 interacts with the actin-binding protein gelsolin, involved in cytoskeletal F-actin dynamics. Herein, we provide evidence that the E7/gelsolin interaction promotes the cytoskeleton rearrangement leading to epithelial-mesenchymal transition-linked morphological and transcriptional changes. E7-mediated cytoskeletal actin remodeling induces the HIPPO pathway by promoting the cytoplasmic retention of inactive P-YAP. These results suggest that YAP could play a role in the "de-differentiation" process underlying the acquisition of a more aggressive phenotype in HPV16-transformed cells. A deeper comprehension of the multifaceted mechanisms elicited by the HPV infection is vital for providing novel strategies to block the biological and clinical features of virus-related cancers.
Collapse
Affiliation(s)
- Paola Matarrese
- Center for Gender-Specific Medicine, Oncology Unit, Istituto Superiore di Sanità, 00161 Rome, Italy; (P.M.); (R.V.); (B.A.)
| | - Rosa Vona
- Center for Gender-Specific Medicine, Oncology Unit, Istituto Superiore di Sanità, 00161 Rome, Italy; (P.M.); (R.V.); (B.A.)
| | - Barbara Ascione
- Center for Gender-Specific Medicine, Oncology Unit, Istituto Superiore di Sanità, 00161 Rome, Italy; (P.M.); (R.V.); (B.A.)
| | - Marco G. Paggi
- Cellular Networks and Molecular Therapeutic Targets, Proteomics Unit, IRCCS—Regina Elena National Cancer Institute Rome, 00144 Rome, Italy
- Correspondence: (M.G.P.); (A.M.M.); Tel.: +39-0652662550 (M.G.P. & A.M.M.)
| | - Anna Maria Mileo
- Tumor Immunology and Immunotherapy Unit, IRCCS—Regina Elena National Cancer Institute Rome, 00144 Rome, Italy
- Correspondence: (M.G.P.); (A.M.M.); Tel.: +39-0652662550 (M.G.P. & A.M.M.)
| |
Collapse
|
27
|
Abstract
Macroautophagy (hereafter referred to as autophagy) plays essential roles in cellular and organismal homeostasis. Transcription factor EB (TFEB) is a master regulator of autophagy and lysosome biogenesis. It is not fully understood how the function of TFEB in autophagy pathway is regulated. Here, we show that Rac1 GTPase is a negative modulator of autophagy by targeting TFEB. Mechanistically, Rac1 reduces autophagy flux by repressing the expressing of autophagy genes. Further investigation revealed that under nutrient-rich conditions, mammalian target of rapamycin (mTOR) phosphorylates TFEB to facilitate the interaction between Rac1 and TFEB. Biochemical dissection uncovered that guanosine 5'-triphosphate (GTP)-bound form of Rac1 selectively interacts with phosphorylated TFEB. This inhibitory interaction prevents the dephosphorylation and nucleus translocation of TFEB, which hampers the transcriptional activation of autophagy-related genes. Furthermore, Rac1-TFEB axis appeared to be important for tumorigenesis, as overexpression of dephosphorylated mutant of TFEB was able to delay the tumor growth driven by Rac1 overexpression. Together, this study not only elucidates a previously uncharacterized autophagy regulation mechanism involving Rac1 and TFEB under physiological and pathological conditions but also suggests a strategy to treat cancers that are driven by Rac1 overexpression.
Collapse
|
28
|
Zhang ML, Zhao GL, Hou Y, Zhong SM, Xu LJ, Li F, Niu WR, Yuan F, Yang XL, Wang Z, Miao Y. Rac1 conditional deletion attenuates retinal ganglion cell apoptosis by accelerating autophagic flux in a mouse model of chronic ocular hypertension. Cell Death Dis 2020; 11:734. [PMID: 32913260 PMCID: PMC7484783 DOI: 10.1038/s41419-020-02951-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 08/18/2020] [Accepted: 08/27/2020] [Indexed: 12/31/2022]
Abstract
Autophagy has a fundamental role in maintaining cell homeostasis. Although autophagy has been implicated in glaucomatous pathology, how it regulates retinal ganglion cell (RGC) injury is largely unknown. In the present work, we found that biphasic autophagy in RGCs occurred in a mouse model of chronic ocular hypertension (COH), accompanied by activation of Rac1, a member of the Rho family. Rac1 conditional knockout (Rac1 cKO) in RGCs attenuated RGC apoptosis, in addition to blocking the increase in the number of autophagosomes and the expression of autophagy-related proteins (Beclin1, LC3-II/I, and p62) in COH retinas. Electron micrograph and double immunostaining of LAMP1 and LC3B showed that Rac1 cKO accelerated autolysosome fusion in RGC axons of COH mice. Inhibiting the first autophagic peak with 3-methyladenine or Atg13 siRNA reduced RGC apoptosis, whereas inhibiting the second autophagic peak with 3-MA or blocking autophagic flux by chloroquine increased RGC apoptosis. Furthermore, Rac1 cKO reduced the number of autophagosomes and apoptotic RGCs induced by rapamycin injected intravitreally, which suggests that Rac1 negatively regulates mTOR activity. Moreover, Rac1 deletion decreased Bak expression and did not interfere with the interaction of Beclin1 and Bcl-2 or Bak in COH retinas. In conclusion, autophagy promotes RGC apoptosis in the early stages of glaucoma and results in autophagic cell death in later stages. Rac1 deletion alleviates RGC damage by regulating the cross talk between autophagy and apoptosis through mTOR/Beclin1-Bak. Interfering with the Rac1/mTOR signaling pathway may provide a new strategy for treating glaucoma.
Collapse
Affiliation(s)
- Meng-Lu Zhang
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Guo-Li Zhao
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Yu Hou
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Shu-Min Zhong
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Lin-Jie Xu
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Fang Li
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Wei-Ran Niu
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Fei Yuan
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Xiong-Li Yang
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Zhongfeng Wang
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China.
| | - Yanying Miao
- Department of Ophthalmology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Zhongshan Hospital, Fudan University, 200032, Shanghai, China.
| |
Collapse
|
29
|
Li XY, Huang GH, Liu QK, Yang XT, Wang K, Luo WZ, Liang TS, Yuan SP, Zhen YW, Yan DM. Porf-2 Inhibits Tumor Cell Migration Through the MMP-2/9 Signaling Pathway in Neuroblastoma and Glioma. Front Oncol 2020; 10:975. [PMID: 32676454 PMCID: PMC7333564 DOI: 10.3389/fonc.2020.00975] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 05/18/2020] [Indexed: 11/13/2022] Open
Abstract
Tumor migration and invasion are key pathological processes that contribute to cell metastasis as well as treatment failure in patients with malignant tumors. However, the mechanisms governing tumor cell migration remain poorly understood. By analyzing the tumor-related database and tumor cell lines, we found that preoptic regulatory factor-2 (Porf-2) is downexpressed in both neuroblastoma and glioma. Using in vitro assays, our data demonstrated that the expression of Porf-2 inhibits tumor cell migration both in neuroblastoma and glioma cell lines. Domain-mutated Porf-2 plasmids were then constructed, and it was found that the GAP domain, which plays a role in the inactivation of Rac1, is the functional domain for inhibiting tumor cell migration. Furthermore, by screening potential downstream effectors, we found that Porf-2 can reduce MMP-2 and MMP-9 expression. Overexpression of MMP-2 blocked the inhibitory effect of Porf-2 in tumor cell migration both in vitro and in vivo. Taken together, we show for the first time that Porf-2 is capable of suppressing tumor cell migration via its GAP domain and the downregulation of MMP-2/9, suggesting that targeting Porf-2 could be a promising therapeutic strategy for nervous system tumors.
Collapse
Affiliation(s)
- Xue-Yuan Li
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guo-Hui Huang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai, China
| | - Qian-Kun Liu
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xi-Tao Yang
- Department of Interventional Therapy, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kang Wang
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wen-Zheng Luo
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tian-Song Liang
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shan-Peng Yuan
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ying-Wei Zhen
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Dong-Ming Yan
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| |
Collapse
|
30
|
Abstract
Cancer is a genetic disease that involves the gradual accumulation of mutations. Human tumours are genetically unstable. However, the current knowledge about the origins and implications of genomic instability in this disease is limited. Understanding the biology of cancer requires the use of animal models. Here, we review relevant studies addressing the implications of genomic instability in cancer by using the fruit fly, Drosophila melanogaster, as a model system. We discuss how this invertebrate has helped us to expand the current knowledge about the mechanisms involved in genomic instability and how this hallmark of cancer influences disease progression.
Collapse
Affiliation(s)
- Stephan U Gerlach
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Héctor Herranz
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
31
|
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
|
32
|
RAC1 as a Therapeutic Target in Malignant Melanoma. Trends Cancer 2020; 6:478-488. [PMID: 32460002 DOI: 10.1016/j.trecan.2020.02.021] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/19/2020] [Accepted: 02/26/2020] [Indexed: 12/22/2022]
Abstract
Small GTPases of the RAS and RHO families are related signaling proteins that, when activated by growth factors or by mutation, drive oncogenic processes. While activating mutations in KRAS, NRAS, and HRAS genes have long been recognized and occur in many types of cancer, similar mutations in RHO family genes, such as RAC1 and RHOA, have only recently been detected as the result of extensive cancer genome-sequencing efforts and are linked to a restricted set of malignancies. In this review, we focus on the role of RAC1 signaling in malignant melanoma, emphasizing recent advances that describe how this oncoprotein alters melanocyte proliferation and motility and how these findings might lead to new therapeutics in RAC1-mutant tumors.
Collapse
|
33
|
IODVA1, a guanidinobenzimidazole derivative, targets Rac activity and Ras-driven cancer models. PLoS One 2020; 15:e0229801. [PMID: 32163428 PMCID: PMC7067412 DOI: 10.1371/journal.pone.0229801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 02/13/2020] [Indexed: 12/17/2022] Open
Abstract
We report the synthesis and preliminary characterization of IODVA1, a potent small molecule that is active in xenograft mouse models of Ras-driven lung and breast cancers. In an effort to inhibit oncogenic Ras signaling, we combined in silico screening with inhibition of proliferation and colony formation of Ras-driven cells. NSC124205 fulfilled all criteria. HPLC analysis revealed that NSC124205 was a mixture of at least three compounds, from which IODVA1 was determined to be the active component. IODVA1 decreased 2D and 3D cell proliferation, cell spreading and ruffle and lamellipodia formation through downregulation of Rac activity. IODVA1 significantly impaired xenograft tumor growth of Ras-driven cancer cells with no observable toxicity. Immuno-histochemistry analysis of tumor sections suggests that cell death occurs by increased apoptosis. Our data suggest that IODVA1 targets Rac signaling to induce death of Ras-transformed cells. Therefore, IODVA1 holds promise as an anti-tumor therapeutic agent.
Collapse
|
34
|
Phosphatidylserine recognition and Rac1 activation are required for Müller glia proliferation, gliosis and phagocytosis after retinal injury. Sci Rep 2020; 10:1488. [PMID: 32001733 PMCID: PMC6992786 DOI: 10.1038/s41598-020-58424-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 12/26/2019] [Indexed: 11/10/2022] Open
Abstract
Müller glia, the principal glial cell type in the retina, have the potential to reenter the cell cycle after retinal injury. In mammals, proliferation of Müller glia is followed by gliosis, but not regeneration of neurons. Retinal injury is also accompanied by phagocytic removal of degenerated cells. We here investigated the possibility that proliferation and gliosis of Müller glia and phagocytosis of degenerated cells may be regulated by the same molecular pathways. After N-methyl-N–nitrosourea-induced retinal injury, degenerated photoreceptors were eliminated prior to the infiltration of microglia/macrophages into the outer nuclear layer, almost in parallel with cell cycle reentry of Müller glia. Inhibition of microglia/macrophage activation with minocycline did not affect the photoreceptor clearance. Accumulation of lysosomes and rhodopsin-positive photoreceptor debris within the cytoplasm of Müller glia indicated that Müller glia phagocytosed most photoreceptor debris. Pharmacological inhibition of phosphatidylserine and Rac1, key regulators of the phagocytic pathway, prevented cell cycle reentry, migration, upregulation of glial fibrillary acidic protein, and phagocytic activity of Müller glia. These data provide evidence that phosphatidylserine and Rac1 may contribute to the crosstalk between different signaling pathways activated in Müller glia after injury.
Collapse
|
35
|
Mikdache A, Fontenas L, Albadri S, Revenu C, Loisel-Duwattez J, Lesport E, Degerny C, Del Bene F, Tawk M. Elmo1 function, linked to Rac1 activity, regulates peripheral neuronal numbers and myelination in zebrafish. Cell Mol Life Sci 2020; 77:161-177. [PMID: 31161284 PMCID: PMC11104998 DOI: 10.1007/s00018-019-03167-5] [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: 11/20/2018] [Revised: 05/28/2019] [Accepted: 05/28/2019] [Indexed: 12/20/2022]
Abstract
Peripheral nervous system development involves a tight coordination of neuronal birth and death and a substantial remodelling of the myelinating glia cytoskeleton to achieve myelin wrapping of its projecting axons. However, how these processes are coordinated through time is still not understood. We have identified engulfment and cell motility 1, Elmo1, as a novel component that regulates (i) neuronal numbers within the Posterior Lateral Line ganglion and (ii) radial sorting of axons by Schwann cells (SC) and myelination in the PLL system in zebrafish. Our results show that neuronal and myelination defects observed in elmo1 mutant are rescued through small GTPase Rac1 activation. Inhibiting macrophage development leads to a decrease in neuronal numbers, while peripheral myelination is intact. However, elmo1 mutants do not show defective macrophage activity, suggesting a role for Elmo1 in PLLg neuronal development and SC myelination independent of macrophages. Forcing early Elmo1 and Rac1 expression specifically within SCs rescues elmo1-/- myelination defects, highlighting an autonomous role for Elmo1 and Rac1 in radial sorting of axons by SCs and myelination. This uncovers a previously unknown function of Elmo1 that regulates fundamental aspects of PNS development.
Collapse
Affiliation(s)
- Aya Mikdache
- U1195, Inserm, University Paris Sud, University Paris-Saclay, 94276, Le Kremlin Bicêtre, France
| | - Laura Fontenas
- U1195, Inserm, University Paris Sud, University Paris-Saclay, 94276, Le Kremlin Bicêtre, France
- Department of Biology, University of Virginia, Charlottesville, VA, 22904-4328, USA
| | - Shahad Albadri
- Institut Curie, PSL Research University, 75005, Paris, France
| | - Celine Revenu
- Institut Curie, PSL Research University, 75005, Paris, France
| | - Julien Loisel-Duwattez
- U1195, Inserm, University Paris Sud, University Paris-Saclay, 94276, Le Kremlin Bicêtre, France
| | - Emilie Lesport
- U1195, Inserm, University Paris Sud, University Paris-Saclay, 94276, Le Kremlin Bicêtre, France
| | - Cindy Degerny
- U1195, Inserm, University Paris Sud, University Paris-Saclay, 94276, Le Kremlin Bicêtre, France
| | | | - Marcel Tawk
- U1195, Inserm, University Paris Sud, University Paris-Saclay, 94276, Le Kremlin Bicêtre, France.
| |
Collapse
|
36
|
Lorente M, García-Casas A, Salvador N, Martínez-López A, Gabicagogeascoa E, Velasco G, López-Palomar L, Castillo-Lluva S. Inhibiting SUMO1-mediated SUMOylation induces autophagy-mediated cancer cell death and reduces tumour cell invasion via RAC1. J Cell Sci 2019; 132:jcs.234120. [PMID: 31578236 PMCID: PMC6826015 DOI: 10.1242/jcs.234120] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 09/18/2019] [Indexed: 12/27/2022] Open
Abstract
Post-translational modifications directly control protein activity and, thus, they represent an important means to regulate the responses of cells to different stimuli. Protein SUMOylation has recently been recognised as one such modification, and it has been associated with various diseases, including different types of cancer. However, the precise way that changes in SUMOylation influence the tumorigenic properties of cells remains to be fully clarified. Here, we show that blocking the SUMO pathway by depleting SUMO1 and UBC9, or by exposure to ginkgolic acid C15:1 or 2-D08 (two different SUMOylation inhibitors), induces cell death, also inhibiting the invasiveness of tumour cells. Indeed, diminishing the formation of SUMO1 complexes induces autophagy-mediated cancer cell death through increasing the expression of Tribbles pseudokinase 3 (TRIB3). Moreover, we found that blocking the SUMO pathway inhibits tumour cell invasion by decreasing RAC1 SUMOylation. These findings shed new light on the mechanisms by which SUMO1 modifications regulate the survival, and the migratory and invasive capacity of tumour cells, potentially establishing the bases to develop novel anti-cancer treatments based on the inhibition of SUMOylation.
Collapse
Affiliation(s)
- Mar Lorente
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid 28040, Spain.,Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid 28040, Spain
| | - Ana García-Casas
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid 28040, Spain.,Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid 28040, Spain
| | - Nélida Salvador
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid 28040, Spain.,Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid 28040, Spain
| | - Angélica Martínez-López
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid 28040, Spain.,Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid 28040, Spain
| | - Estibaliz Gabicagogeascoa
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid 28040, Spain.,Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid 28040, Spain
| | - Guillermo Velasco
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid 28040, Spain.,Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid 28040, Spain.,Instituto Universitario de Investigación Neuroquímica, Universidad Complutense, Madrid 28040, Spain
| | - Lucía López-Palomar
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid 28040, Spain.,Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid 28040, Spain
| | - Sonia Castillo-Lluva
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Biológicas, Universidad Complutense, Madrid 28040, Spain .,Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid 28040, Spain
| |
Collapse
|
37
|
Sarker B, Bagchi A, Walter C, Almeida J, Pathak A. Longer collagen fibers trigger multicellular streaming on soft substrates via enhanced forces and cell-cell cooperation. J Cell Sci 2019; 132:jcs226753. [PMID: 31444287 PMCID: PMC6765186 DOI: 10.1242/jcs.226753] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 08/14/2019] [Indexed: 12/14/2022] Open
Abstract
Grouped cells often leave large cell colonies in the form of narrow multicellular streams. However, it remains unknown how collective cell streaming exploits specific matrix properties, like stiffness and fiber length. It is also unclear how cellular forces, cell-cell adhesion and velocities are coordinated within streams. To independently tune stiffness and collagen fiber length, we developed new hydrogels and discovered invasion-like streaming of normal epithelial cells on soft substrates coated with long collagen fibers. Here, streams arise owing to a surge in cell velocities, forces, YAP activity and expression of mesenchymal marker proteins in regions of high-stress anisotropy. Coordinated velocities and symmetric distribution of tensile and compressive stresses support persistent stream growth. Stiff matrices diminish cell-cell adhesions, disrupt front-rear velocity coordination and do not promote sustained fiber-dependent streaming. Rac inhibition reduces cell elongation and cell-cell cooperation, resulting in a complete loss of streaming in all matrix conditions. Our results reveal a stiffness-modulated effect of collagen fiber length on collective cell streaming and unveil a biophysical mechanism of streaming governed by a delicate balance of enhanced forces, monolayer cohesion and cell-cell cooperation.This article has an associated First Person interview with the first authors of the paper.
Collapse
Affiliation(s)
- Bapi Sarker
- Department of Mechanical Engineering & Materials Science, Washington University, St Louis, MO 63130, USA
| | - Amrit Bagchi
- Department of Mechanical Engineering & Materials Science, Washington University, St Louis, MO 63130, USA
| | - Christopher Walter
- Department of Biomedical Engineering, Washington University, St Louis, MO 63130, USA
| | - José Almeida
- Department of Biomedical Engineering, Washington University, St Louis, MO 63130, USA
| | - Amit Pathak
- Department of Mechanical Engineering & Materials Science, Washington University, St Louis, MO 63130, USA
- Department of Biomedical Engineering, Washington University, St Louis, MO 63130, USA
| |
Collapse
|
38
|
Liu Y, Cheng G, Song Z, Xu T, Ruan H, Cao Q, Wang K, Bao L, Liu J, Zhou L, liu D, Yang H, Chen K, Zhang X. RAC2 acts as a prognostic biomarker and promotes the progression of clear cell renal cell carcinoma. Int J Oncol 2019; 55:645-656. [PMID: 31364727 PMCID: PMC6685597 DOI: 10.3892/ijo.2019.4849] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/26/2019] [Indexed: 12/13/2022] Open
Abstract
As one of the most commonly reported malignancies of the urinary system, clear cell renal cell carcinoma (ccRCC) is an advanced metastatic tumor with high mortality rates. The Rac family small GTPase 2 (RAC2) is a member of the Rho GTPases. Although Rho GTPases play an important role in numerous different types of tumor, whether they have functions in ccRCC remains uncertain. The present study utilized bioinformatics analyses in order to compare the expression levels of RAC2 in ccRCC tumors vs. adjacent tissues, and assessed the association between RAC2 expression and clinicopathological parameters. Furthermore, reverse transcription‑quantitative PCR, western blotting and immunohistochemistry assays were performed to validate RAC2 expression levels in human ccRCC tissues and cell lines. Functional experiments were also conducted in order to identify the roles of RAC2 in vitro. The results revealed that RAC2 was upregulated in ccRCC tissues and cell lines. In addition, elevated expression levels of RAC2 were significantly associated with a poor overall survival (P=0.0061), higher Tumor‑Node‑Metastasis stage and worse G grade. Receiver operating characteristic analysis indicated that high expression levels of RAC2 could be a diagnostic index for ccRCC (area under the curve, 0.9095; P<0.0001). Furthermore, knockdown of RAC2 in vitro attenuated the proliferation, migration and invasion of renal carcinoma cells. In conclusion, the results of the present study demonstrated that RAC2 may act as a promising prognostic and diagnostic biomarker of ccRCC, and could be considered as a potential therapeutic target for treating ccRCC.
Collapse
Affiliation(s)
- Yuenan Liu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Gong Cheng
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Zhengshuai Song
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Tianbo Xu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Hailong Ruan
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Qi Cao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Keshan Wang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Lin Bao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Jingchong Liu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Lijie Zhou
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Di liu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Hongmei Yang
- Department of Pathogenic Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Ke Chen
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| | - Xiaoping Zhang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022
| |
Collapse
|
39
|
Goka ET, Chaturvedi P, Lopez DTM, Garza ADL, Lippman ME. RAC1b Overexpression Confers Resistance to Chemotherapy Treatment in Colorectal Cancer. Mol Cancer Ther 2019; 18:957-968. [PMID: 30926638 DOI: 10.1158/1535-7163.mct-18-0955] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 11/13/2018] [Accepted: 03/15/2019] [Indexed: 11/16/2022]
Abstract
Resistance to chemotherapy represents a major limitation in the treatment of colorectal cancer. Novel strategies to circumvent resistance are critical to prolonging patient survival. Rac1b, a constitutively activated isoform of the small GTPase Rac1, is upregulated with disease progression and promotes cell proliferation and inhibits apoptosis by activation of NF-κB signaling. Here, we show that Rac1b overexpression correlates with cancer stage and confirmed Rac1b expression is associated with increased growth through enhancing NF-κB activity. Rac1b knockdown reduced cellular proliferation and reduced NF-κB activity. Surprisingly, Rac1b expression and NF-κB activity were upregulated in cells treated with chemotherapeutics, suggesting that Rac1b facilitates chemo-resistance through activation of NF-κB signaling. Knockdown of Rac1b or Rac inhibition increases the sensitivity of the cells to oxaliplatin. When used in combination, inhibition of Rac prevents the increase in NF-κB activity associated with chemotherapy treatment and increases the sensitivity of the cells to oxaliplatin. Although Rac inhibition or oxaliplatin treatment alone reduces the growth of colorectal cancer in vivo, combination therapy results in improved outcomes compared with single agents alone. We provide the first evidence that Rac1b expression confers resistance to chemotherapy in colorectal cancer. Additionally, we show that the use of a Rac inhibitor prevents chemoresistance by blocking activation of chemotherapy induced NF-κB signaling, providing a novel strategy to overcome resistance to chemotherapy in colorectal cancer.
Collapse
Affiliation(s)
| | | | | | | | - Marc E Lippman
- Department of Oncology, Georgetown University, Washington, District of Columbia
| |
Collapse
|
40
|
Prieto-Dominguez N, Parnell C, Teng Y. Drugging the Small GTPase Pathways in Cancer Treatment: Promises and Challenges. Cells 2019; 8:E255. [PMID: 30884855 PMCID: PMC6468615 DOI: 10.3390/cells8030255] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/08/2019] [Accepted: 03/13/2019] [Indexed: 02/07/2023] Open
Abstract
Small GTPases are a family of low molecular weight GTP-hydrolyzing enzymes that cycle between an inactive state when bound to GDP and an active state when associated to GTP. Small GTPases regulate key cellular processes (e.g., cell differentiation, proliferation, and motility) as well as subcellular events (e.g., vesicle trafficking), making them key participants in a great array of pathophysiological processes. Indeed, the dysfunction and deregulation of certain small GTPases, such as the members of the Ras and Arf subfamilies, have been related with the promotion and progression of cancer. Therefore, the development of inhibitors that target dysfunctional small GTPases could represent a potential therapeutic strategy for cancer treatment. This review covers the basic biochemical mechanisms and the diverse functions of small GTPases in cancer. We also discuss the strategies and challenges of inhibiting the activity of these enzymes and delve into new approaches that offer opportunities to target them in cancer therapy.
Collapse
Affiliation(s)
- Néstor Prieto-Dominguez
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA 30912, USA.
- Institute of Biomedicine (IBIOMED), University of León, León 24010, Spain.
| | | | - Yong Teng
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA 30912, USA.
- Medical College of Georgia, Augusta University, Augusta, GA 30912, USA.
- Department of Medical laboratory, Imaging and Radiologic Sciences, College of Allied Health, Augusta University, Augusta, GA 30912, USA.
| |
Collapse
|
41
|
Tata P, Gondaliya P, Sunkaria A, Srivastava A, Kalia K. Modulation of CD44, EGFR and RAC Pathway Genes (WAVE Complex) in Epithelial Cancers. Curr Pharm Des 2019; 25:833-848. [PMID: 30799784 DOI: 10.2174/1381612825666190222143044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 02/13/2019] [Indexed: 12/12/2022]
Abstract
Cancer hallmarks help in understanding the diversity of various neoplasms. Epithelial cancers play an immense role in the tumor biology through Epithelial-Mesenchymal Transition (EMT) process. Receptor tyrosine kinase, as well as phosphatidyl ionositol-3 kinase pathways, play an important role in the regulation of cell proliferation, survival, and differentiation during EMT. Till date, numerous studies have shown modulation in the expression profile of potential targets like CD44, EGFR, and Rac in epithelial cancers. CD44 interacts with EGFR and recruits other molecules which further activate the Rac pathway intermediates. This review mainly focused on modulation of genes like CD44, EGFR, and Rac pathway intermediates which play a crucial role in the tumor progression, metastasis, proliferation, and invasion characteristics in epithelial cancers with EMT properties. Hence, targeting Rac pathway might be a more strategically relevant approach in treating epithelial cancers.
Collapse
Affiliation(s)
- Pranathi Tata
- National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar, Gujarat-382355, India
| | - Piyush Gondaliya
- National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar, Gujarat-382355, India
| | - Aditya Sunkaria
- National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar, Gujarat-382355, India
| | - Akshay Srivastava
- National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar, Gujarat-382355, India
| | - Kiran Kalia
- National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Opposite Air Force Station, Gandhinagar, Gujarat-382355, India
| |
Collapse
|
42
|
Ueyama T. Rho-Family Small GTPases: From Highly Polarized Sensory Neurons to Cancer Cells. Cells 2019; 8:cells8020092. [PMID: 30696065 PMCID: PMC6406560 DOI: 10.3390/cells8020092] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/19/2019] [Accepted: 01/23/2019] [Indexed: 12/22/2022] Open
Abstract
The small GTPases of the Rho-family (Rho-family GTPases) have various physiological functions, including cytoskeletal regulation, cell polarity establishment, cell proliferation and motility, transcription, reactive oxygen species (ROS) production, and tumorigenesis. A relatively large number of downstream targets of Rho-family GTPases have been reported for in vitro studies. However, only a small number of signal pathways have been established at the in vivo level. Cumulative evidence for the functions of Rho-family GTPases has been reported for in vivo studies using genetically engineered mouse models. It was based on different cell- and tissue-specific conditional genes targeting mice. In this review, we introduce recent advances in in vivo studies, including human patient trials on Rho-family GTPases, focusing on highly polarized sensory organs, such as the cochlea, which is the primary hearing organ, host defenses involving reactive oxygen species (ROS) production, and tumorigenesis (especially associated with RAC, novel RAC1-GSPT1 signaling, RHOA, and RHOBTB2).
Collapse
Affiliation(s)
- Takehiko Ueyama
- Laboratory of Molecular Pharmacology, Biosignal Research Center, Kobe University, Kobe 657-8501, Japan.
| |
Collapse
|
43
|
Durand-Onaylı V, Haslauer T, Härzschel A, Hartmann TN. Rac GTPases in Hematological Malignancies. Int J Mol Sci 2018; 19:ijms19124041. [PMID: 30558116 PMCID: PMC6321480 DOI: 10.3390/ijms19124041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 12/11/2018] [Accepted: 12/12/2018] [Indexed: 12/22/2022] Open
Abstract
Emerging evidence suggests that crosstalk between hematologic tumor cells and the tumor microenvironment contributes to leukemia and lymphoma cell migration, survival, and proliferation. The supportive tumor cell-microenvironment interactions and the resulting cellular processes require adaptations and modulations of the cytoskeleton. The Rac subfamily of the Rho family GTPases includes key regulators of the cytoskeleton, with essential functions in both normal and transformed leukocytes. Rac proteins function downstream of receptor tyrosine kinases, chemokine receptors, and integrins, orchestrating a multitude of signals arising from the microenvironment. As such, it is not surprising that deregulation of Rac expression and activation plays a role in the development and progression of hematological malignancies. In this review, we will give an overview of the specific contribution of the deregulation of Rac GTPases in hematologic malignancies.
Collapse
Affiliation(s)
- Valerie Durand-Onaylı
- Department of Internal Medicine III with Hematology, Medical Oncology, Hemostaseology, Infectious Disease, Rheumatology, Oncologic Center, Salzburg Cancer Research Institute-Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Paracelsus Medical University, Cancer Cluster Salzburg, 5020 Salzburg, Austria.
| | - Theresa Haslauer
- Department of Internal Medicine III with Hematology, Medical Oncology, Hemostaseology, Infectious Disease, Rheumatology, Oncologic Center, Salzburg Cancer Research Institute-Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Paracelsus Medical University, Cancer Cluster Salzburg, 5020 Salzburg, Austria.
| | - Andrea Härzschel
- Department of Internal Medicine III with Hematology, Medical Oncology, Hemostaseology, Infectious Disease, Rheumatology, Oncologic Center, Salzburg Cancer Research Institute-Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Paracelsus Medical University, Cancer Cluster Salzburg, 5020 Salzburg, Austria.
| | - Tanja Nicole Hartmann
- Department of Internal Medicine III with Hematology, Medical Oncology, Hemostaseology, Infectious Disease, Rheumatology, Oncologic Center, Salzburg Cancer Research Institute-Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Paracelsus Medical University, Cancer Cluster Salzburg, 5020 Salzburg, Austria.
- Department of Hematology, Oncology and Stem Cell Transplantation, Faculty of Medicine and Medical Center, University of Freiburg, 79106 Freiburg, Germany.
| |
Collapse
|
44
|
Integrin α5 down-regulation by miR-205 suppresses triple negative breast cancer stemness and metastasis by inhibiting the Src/Vav2/Rac1 pathway. Cancer Lett 2018; 433:199-209. [PMID: 29964204 DOI: 10.1016/j.canlet.2018.06.037] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/21/2018] [Accepted: 06/26/2018] [Indexed: 01/06/2023]
Abstract
Triple negative breast cancer (TNBC) usually displays more aggressive metastasis, the underlying mechanism is unclear. Previous studies showed that microRNA-205 (miR-205) has controversial roles in cancer, however, its role in TNBC metastasis and the underlying mechanism have not been well-understood. In this study we found that miR-205 expression level is extremely low in basal mesenchymal-like highly migratory and invasive TNBC cells. Stably re-expressing miR-205 in TNBC cells significantly reduced their migration, invasion capability and cancer stem cell (CSC)-like property. Nude mouse orthotopic mammary xenograft tumor model study revealed that miR-205 re-expression greatly decreases TNBC tumor growth and abolishes spontaneous lung metastasis. Mechanistic studies demonstrated that miR-205 inhibits TNBC cell metastatic traits and tumor metastasis by down-regulating integrin α5 (ITGA5). Moreover, ITGA5 knockout using the CRISPR/Cas9 technique achieved the same strong inhibitory effect on TNBC cell CSC-like property and tumor metastasis as re-expressing miR-205 did. Further mechanistic studies indicated that ITGA5 down-regulation by miR-205 re-expression impairs TNBC cell metastatic traits by inhibiting the Src/Vav2/Rac1 pathway. Together, our findings suggest that miR-205 and ITGA5 may serve as potential targets for developing effective therapies for metastatic TNBC.
Collapse
|
45
|
Delineating the HMGB1 and HMGB2 interactome in prostate and ovary epithelial cells and its relationship with cancer. Oncotarget 2018; 9:19050-19064. [PMID: 29721183 PMCID: PMC5922377 DOI: 10.18632/oncotarget.24887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 02/27/2018] [Indexed: 12/19/2022] Open
Abstract
High Mobility Group B (HMGB) proteins are involved in cancer progression and in cellular responses to platinum compounds used in the chemotherapy of prostate and ovary cancer. Here we use affinity purification coupled to mass spectrometry (MS) and yeast two-hybrid (Y2H) screening to carry out an exhaustive study of HMGB1 and HMGB2 protein interactions in the context of prostate and ovary epithelia. We present a proteomic study of HMGB1 partners based on immunoprecipitation of HMGB1 from a non-cancerous prostate epithelial cell line. In addition, HMGB1 and HMGB2 were used as baits in yeast two-hybrid screening of libraries from prostate and ovary epithelial cell lines as well as from healthy ovary tissue. HMGB1 interacts with many nuclear proteins that control gene expression, but also with proteins that form part of the cytoskeleton, cell-adhesion structures and others involved in intracellular protein translocation, cellular migration, secretion, apoptosis and cell survival. HMGB2 interacts with proteins involved in apoptosis, cell motility and cellular proliferation. High confidence interactors, based on repeated identification in different cell types or in both MS and Y2H approaches, are discussed in relation to cancer. This study represents a useful resource for detailed investigation of the role of HMGB1 in cancer of epithelial origins, as well as potential alternative avenues of therapeutic intervention.
Collapse
|
46
|
Arnst JL, Hein AL, Taylor MA, Palermo NY, Contreras JI, Sonawane YA, Wahl AO, Ouellette MM, Natarajan A, Yan Y. Discovery and characterization of small molecule Rac1 inhibitors. Oncotarget 2018; 8:34586-34600. [PMID: 28410221 PMCID: PMC5470993 DOI: 10.18632/oncotarget.16656] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 03/16/2017] [Indexed: 12/18/2022] Open
Abstract
Aberrant activation of Rho GTPase Rac1 has been observed in various tumor types, including pancreatic cancer. Rac1 activates multiple signaling pathways that lead to uncontrolled proliferation, invasion and metastasis. Thus, inhibition of Rac1 activity is a viable therapeutic strategy for proliferative disorders such as cancer. Here we identified small molecule inhibitors that target the nucleotide-binding site of Rac1 through in silico screening. Follow up in vitro studies demonstrated that two compounds blocked active Rac1 from binding to its effector PAK1. Fluorescence polarization studies indicate that these compounds target the nucleotide-binding site of Rac1. In cells, both compounds blocked Rac1 binding to its effector PAK1 following EGF-induced Rac1 activation in a dose-dependent manner, while showing no inhibition of the closely related Cdc42 and RhoA activity. Furthermore, functional studies indicate that both compounds reduced cell proliferation and migration in a dose-dependent manner in multiple pancreatic cancer cell lines. Additionally, the two compounds suppressed the clonogenic survival of pancreatic cancer cells, while they had no effect on the survival of normal pancreatic ductal cells. These compounds do not share the core structure of the known Rac1 inhibitors and could serve as additional lead compounds to target pancreatic cancers with high Rac1 activity.
Collapse
Affiliation(s)
- Jamie L Arnst
- Department of Radiation Oncology, University of Nebraska Medical Center Omaha, Nebraska, United States of America.,Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center Omaha, Nebraska, United States of America
| | - Ashley L Hein
- Department of Radiation Oncology, University of Nebraska Medical Center Omaha, Nebraska, United States of America
| | - Margaret A Taylor
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center Omaha, Nebraska, United States of America
| | - Nick Y Palermo
- Holland Computing Center University of Nebraska-Lincoln Omaha, Nebraska, United States of America
| | - Jacob I Contreras
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center Omaha, Nebraska, United States of America
| | - Yogesh A Sonawane
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center Omaha, Nebraska, United States of America
| | - Andrew O Wahl
- Department of Radiation Oncology, University of Nebraska Medical Center Omaha, Nebraska, United States of America
| | - Michel M Ouellette
- Department of Internal Medicine, University of Nebraska Medical Center Omaha, Nebraska, United States of America.,Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center Omaha, Nebraska, United States of America
| | - Amarnath Natarajan
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center Omaha, Nebraska, United States of America.,Department of Pharmaceutical Sciences, University of Nebraska Medical Center Omaha, Nebraska, United States of America.,Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center Omaha, Nebraska, United States of America
| | - Ying Yan
- Department of Radiation Oncology, University of Nebraska Medical Center Omaha, Nebraska, United States of America.,Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center Omaha, Nebraska, United States of America
| |
Collapse
|
47
|
Li L, Chen X, Gu H. The signaling involved in autophagy machinery in keratinocytes and therapeutic approaches for skin diseases. Oncotarget 2018; 7:50682-50697. [PMID: 27191982 PMCID: PMC5226613 DOI: 10.18632/oncotarget.9330] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 04/26/2016] [Indexed: 02/06/2023] Open
Abstract
Autophagy is responsible for the lysosomal degradation of proteins, organelles, microorganisms and exogenous particles. Epidermis primarily consists of keratinocytes which functions as an extremely important barrier. Investigation on autophagy in keratinocytes has been continuously renewing, but is not so systematic due to the complexity of the autophagy machinery. Here we reviewed recent studies on the autophagy in keratinocyte with a focus on interplay between autophagy machinery and keratinocytes biology, and novel autophagy regulators identified in keratinocytes. In this review, we discussed the roles of autophagy in apoptosis, differentiation, immune response, survival and melanin metabolism, trying to reveal the possible involvement of autophagy in skin aging, skin disorders and skin color formation. Since autophagy routinely plays a double-edged sword role in various conditions, its functions in skin homeostasis and potential application as a therapeutic target for skin diseases remains to be clarified. Furthermore, more investigations are needed on optimizing designed strategies to inhibit or enhance autophagy for clinical efficacy.
Collapse
Affiliation(s)
- Li Li
- Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - Xu Chen
- Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - Heng Gu
- Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| |
Collapse
|
48
|
Lee HT, Huang CH, Chen WC, Tsai CS, Chao YL, Liu SH, Chen JH, Wu YY, Lee YJ. Transglutaminase 2 Promotes Migration and Invasion of Lung Cancer Cells. Oncol Res 2018; 26:1175-1182. [PMID: 29301592 PMCID: PMC7844758 DOI: 10.3727/096504018x15149761920868] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Lung cancer is the leading cause of cancer deaths worldwide. Given that the major threat of cancer is metastasis, delineation of the molecular mechanism underlying it would help devise therapeutic strategies. Transglutaminase 2 (TG2), belonging to the transglutaminase superfamily, is a versatile protein with enzymatic and nonenzymatic functions. It mainly localizes inside the cell, but also appears extracellularly. Recent findings have demonstrated the involvement of TG2 in cancer development. Here we examine the role of TG2 in metastasis of lung cancer using a lung cancer cell line CL1-0, which exhibits low invasiveness, and its invasive subline CL1-5. Our results show that CL1-5 cells express a higher amount of TG2 than CL1-0 cells. Overexpression of TG2 in CL1-0 enhances cell migration and invasion, and lowering TG2 expression in CL1-5 cells reduces their ability to do so. The transamidase activity of TG2 is not required since cells expressing the inactive TG2 mutant or treated with a TG2 inhibitor are still able to migrate and invade. TG2-stimulated migration and invasion are, at least in part, mediated by Rac, as inhibition of Rac activity suppresses cell migration and invasion. Lastly, exogenous application of recombinant TG2 protein to CL1-0 cells substantially augments cell migration and invasion, suggesting the significance of extracellular TG2 in promoting these events. Collectively, our results show that TG2 plays a positive role in cell migration and invasion, and this might help metastasis of lung cancer cells.
Collapse
Affiliation(s)
- Hung-Tsung Lee
- Division of Pulmonary Medicine, Antai Tian-Sheng Memorial Hospital, Pingtung, Taiwan, Republic of China
| | - Cheng-Hsieh Huang
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan, Republic of China
| | - Wuan-Chun Chen
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan, Republic of China
| | - Chi-Shan Tsai
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan, Republic of China
| | - Yu-Lin Chao
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan, Republic of China
| | - Szu-Han Liu
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan, Republic of China
| | - Jun-Hong Chen
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan, Republic of China
| | - Yi-Ying Wu
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan, Republic of China
| | - Yi-Ju Lee
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan, Republic of China
| |
Collapse
|
49
|
Liu B, Zheng X, Meng F, Han Y, Song Y, Liu F, Li S, Zhang L, Gu F, Zhang X, Fu L. Overexpression of β1 integrin contributes to polarity reversal and a poor prognosis of breast invasive micropapillary carcinoma. Oncotarget 2017; 9:4338-4353. [PMID: 29435106 PMCID: PMC5796977 DOI: 10.18632/oncotarget.22774] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 11/17/2017] [Indexed: 12/22/2022] Open
Abstract
Invasive micropapillary carcinoma (IMPC) of the breast is a highly aggressive breast cancer. Polarity reversal exemplified by cluster growth is hypothesized to contribute to the invasiveness and metastasis of IMPC. In this study, we demonstrate that levels of β1 integrin and Rac1 expression were greater in breast IMPC than in invasive breast carcinoma of no specific type and paraneoplastic benign breast tissue. We show that silencing β1 integrin expression using the β1 integrin inhibitor AIIB2 partially restored polarity in IMPC primary cell clusters and downregulated Rac1. Thus, overexpression of β1 integrin upregulates Rac1. Univariate analysis showed that overexpression of β1 integrin and Rac1 was associated with breast cancer cell polarity reversal, lymph node metastasis, and poor disease-free survival in IMPC patients. Multivariate analysis revealed that polarity reversal was an independent predictor of poor disease-free survival. These findings indicate that overexpression of β1 integrin and the resultant upregulation of Rac1 contribute to polarity reversal and metastasis of breast IMPC, and that β1 integrin and Rac1 could be potential prognostic biomarkers and targets for treatment of breast IMPC.
Collapse
Affiliation(s)
- Bingbing Liu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China.,Department of Pathology, Third Central Hospital of Tianjin, Tianjin Institute of Hepatobiliary Disease, Tianjin Key Laboratory of Artificial Cell, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin, China
| | - Xia Zheng
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Fanfan Meng
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Yunwei Han
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Yawen Song
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Fangfang Liu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Shuai Li
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Lanjing Zhang
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China.,Department of Pathology, University Medical Center of Princeton, Plainsboro, NJ, USA.,Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA.,Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.,Department of Pathology, Robert Wood Johnson Medical School, and Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ, USA
| | - Feng Gu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| | - Xinmin Zhang
- Department of Pathology, Cooper University Hospital, Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Li Fu
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, China
| |
Collapse
|
50
|
Reilly JE, Neighbors JD, Hohl RJ. Targeting protein geranylgeranylation slows tumor development in a murine model of prostate cancer metastasis. Cancer Biol Ther 2017; 18:872-882. [PMID: 27624889 PMCID: PMC5710670 DOI: 10.1080/15384047.2016.1219817] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/11/2016] [Accepted: 07/29/2016] [Indexed: 12/23/2022] Open
Abstract
The isoprenoid biosynthetic pathway (IBP) plays a critical role in providing substrates and enzymes necessary for the post-translational modification and thus activation of a number of proteins involved in prostate cancer metastasis. Previous work by our lab found novel compound disodium [(6Z,11E,15E)-9-[bis(sodiooxy)phosphoryl]-17-hydroxy-2,6,12,16-tetramethyheptadeca-2,6,11,15-tetraen-9-yl]phosphonate (GGOHBP), which inhibits the IBP enzyme geranylgeranyl diphosphate synthase (GGDPS), reduced protein geranylgeranylation without altering protein farnesylation. This activity significantly reduced adrenal gland tumor burden in a murine model of human prostate cancer metastasis which relied on treatment of established disease. The present study determined the ability of GGDPS inhibition to slow the development of prostate cancer metastasis in a preventative murine model. Using tail vein injection of human derived PC-3 prostate cancer cells 4 d after initiating daily GGOHBP or vehicle treatments, we found GGOHBP significantly reduced whole body tumor burden, significantly slowed the development of tumors, and prolonged overall survival as compared to vehicle treated animals. The observed reduction in soft tissue tumor burden corresponded to a biochemical reduction in Rap1A geranylgeranylation, which for prostate cancer is important in its own merit and which serves as a surrogate marker for Rho family, i.e. Rac, protein modification. This effect was present in all treated mice pointing to strong target engagement, which was not observed in non-tumor burdened tissues or control mice. Our findings reiterate a role for protein geranylgeranylation in the development of prostate cancer metastasis in vivo.
Collapse
Affiliation(s)
| | | | - Raymond J. Hohl
- Department of Pharmacology, University of Iowa, Iowa City, IA, USA
- Departments of Internal Medicine and Pharmacology, University of Iowa, Iowa City, IA, USA
| |
Collapse
|