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Song W, Wu X, Cheng C, Li D, Chen J, Zhang W. ARHGAP9 knockdown promotes lung adenocarcinoma metastasis by activating Wnt/β-catenin signaling pathway via suppressing DKK2. Genomics 2023; 115:110684. [PMID: 37454937 DOI: 10.1016/j.ygeno.2023.110684] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 06/08/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
This study aims to elucidate the effect of ARHGAP9 on lung adenocarcinoma (LUAD) metastasis, and preliminarily explore its molecular mechanism. As a result, we found that ARHGAP9 was downregulated and correlated with poor prognosis of LUAD. ARHGAP9 knockdown promoted LUAD cell proliferation, migration and invasion, inhibited cell apoptosis and reduced G0G1 cell cycle arrest, in contrast to the results of ARHGAP9 overexpression. Further RNA sequencing analysis demonstrated that ARHGAP9 knockdown in H1299 cells significantly reduced DKK2 (dickkopf related protein 2) expression. Silencing ARHGAP9 in H1299 cells while overexpressing DKK2, DKK2 reversed the promoted effects of ARHGAP9 knockdown on LUAD cell proliferation, migration and invasion. Meanwhile, the activity of Wnt/β-catenin signaling pathway was also reduced. Taken together, these data indicated that ARHGAP9 knockdown promoted LUAD metastasis by activating Wnt/β-catenin signaling pathway via suppressing DKK2. This may provide a new strategy for LUAD treatment.
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Affiliation(s)
- Wenping Song
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China; Henan Engineering Research Center for Tumor Precision Medicine and Comprehensive Evaluation, Henan Cancer Hospital, Zhengzhou 450008, China; Henan Provincial Key Laboratory of Anticancer Drug Research, Henan Cancer Hospital, Zhengzhou 450008, China
| | - Xuan Wu
- Department of Respiratory and Critical Care Medicine, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - Cheng Cheng
- Department of Hematology, Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Ding Li
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Jinhua Chen
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Wenzhou Zhang
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China.
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Chen W, Tan M, Yu C, Liao G, Kong D, Bai J, Yang B, Gong H. ARHGAP6 inhibits bladder cancer cell viability, migration, and invasion via β-catenin signaling and enhances mitomycin C sensitivity. Hum Cell 2023; 36:786-797. [PMID: 36715867 DOI: 10.1007/s13577-023-00860-3] [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: 11/01/2022] [Accepted: 01/17/2023] [Indexed: 01/31/2023]
Abstract
The Rho/ROCK pathway regulates diverse cellular processes and contributes to the development and advancement of several types of human cancers. This study investigated the role of specific Rho GTPase-activating proteins (RhoGAP), ARHGAP6, in bladder cancer (BC). In this study, ARHGAP6 expression in BC and its clinical significance were investigated. In vitro and in vivo assays were used to explore the tumor-related function and the underlying molecular mechanism ARHGAP6 of in BC. The mRNA and protein levels of ARHGAP6 significantly reduced in human BC tissues and cell lines compared with corresponding adjacent non-cancerous tissues and normal urothelial cells. In vitro, ARHGAP6 overexpression markedly decreased the viability, migration, and invasion of BC cells. Interestingly, low ARHGAP6 expression in BC strongly correlated with poor patient survival and was highly associated with metastasis and β-catenin signaling. Furthermore, ARHGAP6 expression strongly influenced the sensitivity of BC cells to mitomycin C treatment. Together, our results demonstrate that ARHGAP6 plays critical roles in regulating the proliferation, migration, invasion, and metastasis of BC cells possibly via the modulation of β-catenin and strongly influences the chemosensitivity of BC cells.
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Affiliation(s)
- Weihua Chen
- Department of Urology, Shanghai East Hospital, Tongji University, Shanghai, 200120, China
| | - Mingyue Tan
- Department of Urology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200021, Shanghai, China
| | - Chao Yu
- Department of Urology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Guoqiang Liao
- Department of Urology, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, No. 1500 Zhouyuan Road, Pudong, 201318, Shanghai, China
| | - Dehui Kong
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Jie Bai
- Department of Urology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Bo Yang
- Department of Urology, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, No. 1500 Zhouyuan Road, Pudong, 201318, Shanghai, China.
| | - Hua Gong
- Department of Urology, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, No. 1500 Zhouyuan Road, Pudong, 201318, Shanghai, China.
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Lee SHT, Kim JY, Kim P, Dong Z, Su CY, Ahn EH. Changes of Mutations and Copy-Number and Enhanced Cell Migration during Breast Tumorigenesis. Adv Biol (Weinh) 2023; 7:e2200072. [PMID: 36449747 PMCID: PMC10836759 DOI: 10.1002/adbi.202200072] [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: 03/16/2022] [Revised: 11/14/2022] [Indexed: 12/02/2022]
Abstract
Although cancer stem cells (CSCs) play a major role in tumorigenesis and metastasis, the role of genetic alterations in invasiveness of CSCs is still unclear. Tumor microenvironment signals, such as extracellular matrix (ECM) composition, significantly influence cell behaviors. Unfortunately, these signals are often lost in in vitro cell culture. This study determines putative CSC populations, examines genetic changes during tumorigenesis of human breast epithelial stem cells, and investigates single-cell migration properties on ECM-mimetic platforms. Whole exome sequencing data indicate that tumorigenic cells have a higher somatic mutation burden than non-tumorigenic cells, and that mutations exclusive to tumorigenic cells exhibit higher predictive deleterious scores. Tumorigenic cells exhibit distinct somatic copy number variations (CNVs) including gain of duplications in chromosomes 5 and 8. ECM-mimetic topography selectively enhances migration speed of tumorigenic cells, but not of non-tumorigenic cells, and results in a wide distribution of tumorigenic single-cell migration speeds, suggesting heterogeneity in cellular sensing of contact guidance cues. This study identifies mutations and CNVs acquired during breast tumorigenesis, which can be associated with enhanced migration of breast tumorigenic cells, and demonstrates that a nanotopographically-defined platform can be applied to recapitulate an ECM structure for investigating cellular migration in the simulated tumor microenvironment.
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Affiliation(s)
- Seung Hyuk T. Lee
- Department of Pathology, University of Washington, Seattle,
WA 98195, USA
| | - Joon Yup Kim
- Department of Pathology, University of Washington, Seattle,
WA 98195, USA
| | - Peter Kim
- Department of Bioengineering, University of Washington,
Seattle, WA 98195, USA
| | - Zhipeng Dong
- Department of Biomedical Engineering, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Chia-Yi Su
- Department of Biomedical Engineering, Johns Hopkins
University, Baltimore, MD 21205, USA
| | - Eun Hyun Ahn
- Department of Biomedical Engineering, Johns Hopkins
University, Baltimore, MD 21205, USA
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Sun Y, Du R, Shang Y, Liu C, Zheng L, Sun R, Wang Y, Lu G. Rho GTPase-activating protein 35 suppresses gastric cancer metastasis by regulating cytoskeleton reorganization and epithelial-to-mesenchymal transition. Bioengineered 2022; 13:14605-14615. [PMID: 35758029 PMCID: PMC9342288 DOI: 10.1080/21655979.2022.2092677] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Cytoskeletal reorganization and epithelial-to-mesenchymal transition (EMT) are key processes and typical characteristics of metastatic cancer cells. Rho GTPase‑activating protein 35 (ARHGAP35) is a GTPase-activating protein, which has a significant effect on cell motility. However, the particular function of ARHGAP35 in gastric cancer (GC) remains unknown. In the present study, the role of ARHGAP35 in GC was investigated by in vitro loss-of-function and gain-of-function experiments. Cytoskeletal reorganization in GC cells was evaluated using immunofluorescence staining and the protein expression levels of key molecules and active RhoA were detected by western blot analysis. Additionally, the clinical evaluation of proteins in human GC tissues was assessed by immunohistochemistry. The results showed that ARHGAP35, a tumor suppressor, was downregulated in GC tissues and its decreased expression was associated with the metastatic status of GC. Additionally, Transwell and wound healing assays demonstrated that ARHGAP35 knockdown promoted cell motility in vitro. However, the above effects were abrogated following ectopic ARHGAP35 expression. Furthermore, ARHGAP35 could affect cytoskeletal reorganization via directly regulating RhoA activation. In addition, ARHGAP35 upregulated E-cadherin and attenuated EMT in GC cells. Both ARHGAP35 and E-cadherin were associated with overall survival in patients with GC, while their combination allowed for an even greater capacity for distinguishing GC patients with different prognosis. Overall, the results of the current study suggested that ARHGAP35 could directly regulate cell morphology and motility via affecting cytoskeletal reorganization and EMT via targeting RhoA and E-cadherin, respectively. Targeting the ARHGAP35/RhoA/E-cadherin pathway could be a potential approach for treating GC.
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Affiliation(s)
- Yi Sun
- Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi'an, shaanxi, China
| | - Rui Du
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, Fourth Military Medical University, Xi'an, shaanxi, China
| | - Yulong Shang
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, shaanxi, China
| | - Changhao Liu
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, shaanxi, China
| | - Linhua Zheng
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, shaanxi, China
| | - Ruiqing Sun
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, shaanxi, China
| | - Yuanyong Wang
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, shaanxi, China
| | - Guofang Lu
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, shaanxi, China.,Department of Physiology and Pathophysiology, National Key Discipline of Cell Biology, Fourth Military Medical University, Xi'an, Shaanxi, China
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Zheng L, Cai X, Song J, Shi H, Zhang J, Ke X, Li H, Chen Y. MicroRNA-30c-2-3p represses malignant progression of gastric adenocarcinoma cells via targeting ARHGAP11A. Bioengineered 2022; 13:14534-14544. [PMID: 35754342 PMCID: PMC9342190 DOI: 10.1080/21655979.2022.2090222] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
MicroRNAs are crucial tumor regulators to tumor development and progression. MiR-30c-2-3p can suppress malignant progression of tumor cells, but no study has reported the modulatory process of miR-30c-2-3p in gastric adenocarcinoma (GA). We herein investigated role of miR-30c-2-3p in GA cells. Here, we evaluated gene level in cancer cells by qRT-PCR. CCK-8, colony formation, flow cytometry, and transwell assays revealed biological functions of miR-30c-2-3p and ARHGAP11A. Genes downstream of miR-30c-2-3p were acquired through bioinformatics analysis. Our results suggested a low level of miR-30c-2-3p in GA tissue and cells, while its high expression could repress the malignant progression and promote cell cycle arrest and apoptosis of GA cells. Besides, ARHGAP11A was downstream of miR-30c-2-3p, with up-regulated ARHGAP11A facilitating malignant progression and repressing cell cycle arrest and apoptosis of GA cells. In addition, changes in GA cell functions caused by high ARHGAP11A expression could be partially offset by enhancing miR-30c-2-3p. Thus, our observations indicated that miR-30c-2-3p was a tumor repressor that could inhibit GA progression via modulating ARHGAP11A.
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Affiliation(s)
- Liang Zheng
- Department of Abdominal Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Xiongchao Cai
- Department of Abdominal Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Jintian Song
- Department of Abdominal Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Huaijing Shi
- Department of Gynecology Surgery, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Jiulong Zhang
- Department of Thoracic Surgical Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Xi Ke
- Department of Abdominal Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Hui Li
- Department of Abdominal Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Yigui Chen
- Department of Abdominal Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, Fujian, China
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Li DY, Yue LX, Wang SG, Wang TX. Quercitrin restrains the growth and invasion of lung adenocarcinoma cells by regulating gap junction protein beta 2. Bioengineered 2022; 13:6126-6135. [PMID: 35196203 PMCID: PMC8973705 DOI: 10.1080/21655979.2022.2037372] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Lung adenocarcinoma (LUAD) is the most prevalent subtype of non-small cell lung cancer (NSCLC) with high lethality, and quercitrin exhibits anticancer characteristics. Here, we attempted to uncover the anticancer activity of quercitrin in LUAD. In this work, quercitrin prohibited the cell viability and clone-formation of LUAD cells in vitro. Meanwhile, quercitrin treatment reduced the aggressive phenotypes in LUAD cells. Further, Gap Junction Protein Beta 2 (GJB2) expression was aberrantly higher in LUAD when compared within control tissue. The higher expression of GJB2 is associated with an inferior overall survival for patients with LUAD. Finally, the reintroduction of GJB2 offset the inhibiting influence of quercitrin in LUAD cells. Altogether, these findings disclosed that quercitrin suppressed the growth and metastatic-related traits of LUAD cells partly via regulating GJB2 expression.
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Affiliation(s)
- Deng Yun Li
- School of Medicine, Zhengzhou University of Industrial Technology, Zhengzhou, Henan, China
| | - Li Xiao Yue
- School of Medicine, Zhengzhou University of Industrial Technology, Zhengzhou, Henan, China
| | - Shi Guang Wang
- School of Medicine, Zhengzhou University of Industrial Technology, Zhengzhou, Henan, China
| | - Tian Xiao Wang
- School of Pharmacy, Henan University, Kaifeng, Henan, China
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