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Cheng K, Chahdi A, Larabee SM, Tolaymat M, Sundel MH, Drachenberg CB, Zhan M, Hu S, Said AH, Shang AC, Xie G, Alizadeh M, Moura NS, Bafford AC, Williams RT, Hanna NN, Raufman JP. Muscarinic receptor agonist-induced βPix binding to β-catenin promotes colon neoplasia. Sci Rep 2023; 13:16920. [PMID: 37805544 PMCID: PMC10560271 DOI: 10.1038/s41598-023-44158-8] [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: 09/26/2022] [Accepted: 10/04/2023] [Indexed: 10/09/2023] Open
Abstract
M3 muscarinic receptors (M3R) modulate β-catenin signaling and colon neoplasia. CDC42/RAC guanine nucleotide exchange factor, βPix, binds to β-catenin in colon cancer cells, augmenting β-catenin transcriptional activity. Using in silico, in vitro, and in vivo approaches, we explored whether these actions are regulated by M3R. At the invasive fronts of murine and human colon cancers, we detected co-localized nuclear expression of βPix and β-catenin in stem cells overexpressing M3R. Using immunohistochemistry, immunoprecipitation, proximity ligand, and fluorescent cell sorting assays in human tissues and established and primary human colon cancer cell cultures, we detected time-dependent M3R agonist-induced cytoplasmic and nuclear association of βPix with β-catenin. βPix knockdown attenuated M3R agonist-induced human colon cancer cell proliferation, migration, invasion, and expression of PTGS2, the gene encoding cyclooxygenase-2, a key player in colon neoplasia. Overexpressing βPix dose-dependently augmented β-catenin binding to the transcription factor TCF4. In a murine model of sporadic colon cancer, advanced neoplasia was attenuated in conditional knockout mice with intestinal epithelial cell deficiency of βPix. Expression levels of β-catenin target genes and proteins relevant to colon neoplasia, including c-Myc and Ptgs2, were reduced in colon tumors from βPix-deficient conditional knockout mice. Targeting the M3R/βPix/β-catenin axis may have therapeutic potential.
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Affiliation(s)
- Kunrong Cheng
- VA Maryland Healthcare System, Baltimore, MD, 21201, USA
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Ahmed Chahdi
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Shannon M Larabee
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Mazen Tolaymat
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Margaret H Sundel
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Cinthia B Drachenberg
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Min Zhan
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Shien Hu
- VA Maryland Healthcare System, Baltimore, MD, 21201, USA
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Anan H Said
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Aaron C Shang
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Guofeng Xie
- VA Maryland Healthcare System, Baltimore, MD, 21201, USA
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Madeline Alizadeh
- The Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 20201, USA
| | - Natalia Sampaio Moura
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Andrea C Bafford
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Richelle T Williams
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Nader N Hanna
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Jean-Pierre Raufman
- VA Maryland Healthcare System, Baltimore, MD, 21201, USA.
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
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Zhu YT, Wu SY, Yang S, Ying J, Tian L, Xu HL, Zhang HP, Yao H, Zhang WY, Jin QQ, Yang YT, Jiang XY, Zhang N, Yao S, Zhou SG, Chen G. Identification and validation of a novel anoikis-related signature for predicting prognosis and immune landscape in ovarian serous cystadenocarcinoma. Heliyon 2023; 9:e18708. [PMID: 37554782 PMCID: PMC10404752 DOI: 10.1016/j.heliyon.2023.e18708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 07/23/2023] [Accepted: 07/25/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND Ovarian serous cystadenocarcinoma (OSC) is the most prevalent histological subtype of ovarian cancer (OV) and presents a serious threat to women's health. Anoikis is an essential component of metastasis, and tumor cells can get beyond it to become viable. The impact of anoikis on OSC, however, has only been the topic of a few studies. METHODS The mRNA sequencing and clinical information of OSC came from The Cancer Genome Atlas Target Genotype-Tissue Expression (TCGA TARGET GTEx) dataset. Anoikis-related genes (ARGs) were collected by Harmonizome and GeneCards websites. Centered on these ARGs, we used unsupervised consensus clustering to explore potential tumor typing and filtered hub ARGs to create a model of predictive signature for OSC patients. Furthermore, we presented clinical specialists with a novel nomogram based on ARGs, revealing the underlying clinical relevance of this signature. Finally, we explored the immune microenvironment among various risk groups. RESULTS We identified 24 ARGs associated with the prognosis of OSC and classified OSC patients into three subtypes, and the subtype with the best prognosis was more enriched in immune-related pathways. Seven ARGs (ARHGEF7, NOTCH4, CASP2, SKP2, PAK4, LCK, CCDC80) were chosen to establish a risk model and a nomogram that can provide practical clinical decision support. Risk scores were found to be an independent and significant prognostic factor in OSC patients. The CIBERSORTx result revealed an inflammatory microenvironment is different for risk groups, and the proportion of immune infiltrates of Macrophages M1 is negatively correlated with risk score (rs = -0.21, P < 0.05). Ultimately, quantitative reverse transcription polymerase chain reaction (RT-PCR) was utilized to validate the expression of the seven pivotal ARGs. CONCLUSION In this study, based on seven ARGs, a risk model and nomogram established can be used for risk stratification and prediction of survival outcomes in patients with OSC, providing a reliable reference for individualized therapy of OSC patients.
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Affiliation(s)
- Yu-Ting Zhu
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Shuang-Yue Wu
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Song Yang
- Department of Pain Treatment, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, China
| | - Jie Ying
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Lu Tian
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Hong-Liang Xu
- Department of Pathology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - He-Ping Zhang
- Department of Pathology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Hui Yao
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Wei-Yu Zhang
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Qin-Qin Jin
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Yin-Ting Yang
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Xi-Ya Jiang
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Nan Zhang
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Shun Yao
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Shu-Guang Zhou
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
| | - Guo Chen
- Department of Gynecology, Maternal and Child Health Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, China
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 230001, China
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Tong L, Wang S, Yang J, Zhang Q, Gu X, Mo T, Luo Y, Zhang C, Zhang J, Liu Y. Combined ARHGEF6 and Tumor Mutational Burden may serve as a potential biomarker for immunotherapy of lung adenocarcinoma. Heliyon 2023; 9:e18501. [PMID: 37600416 PMCID: PMC10432614 DOI: 10.1016/j.heliyon.2023.e18501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 07/13/2023] [Accepted: 07/19/2023] [Indexed: 08/22/2023] Open
Abstract
ARHGEF6, a member of the Dbl-related guanylate exchanger (GEF) family, is highly expressed in gastric cancer and glioma. However, scientists still do not know whether it plays a pivotal role in the pathogenesis of lung adenocarcinoma(LUAD). The prognostic significance of ARHGEF6 expression was assessed by TCGA data. This paper focuses on the level of immune infiltration associated with ARHGEF6 and explored the relationship of this gene with the tumor mutational burden (TMB), immune checkpoints, and drug sensitivity. The results showed that the high expression of ARHGEF6 was associated with a good prognosis in LUAD patients, and positively correlated with a variety of immune cells and drugs. Meanwhile, ARHGEF6 was found to be negatively correlated with TMB. In conclusion, the results of this study suggest that ARHGEF6 is a protective gene in LUAD patients. A combination of ARHGEF6 and TMB could be used as a potential biomarker in the screening of immunotherapy regimens, which are provided to patients with LUAD.
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Affiliation(s)
- Li Tong
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
- Dalian Medical University, Dalian, China
| | - Sichu Wang
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
- Dalian Medical University, Dalian, China
| | - Juanjuan Yang
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
| | - Qing Zhang
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xue Gu
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
- Medical School of Nantong University, Nantong, China
| | - Taoming Mo
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
- Medical School of Nantong University, Nantong, China
| | - Yang Luo
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
- Medical School of Nantong University, Nantong, China
| | | | - Jianguo Zhang
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
| | - Yifei Liu
- Department of Pathology, Affiliated Hospital of Nantong University, Nantong, China
- Medical School of Nantong University, Nantong, China
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Ye G, Wang J, Yang W, Li J, Ye M, Jin X. The roles of KLHL family members in human cancers. Am J Cancer Res 2022; 12:5105-5139. [PMID: 36504893 PMCID: PMC9729911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 11/08/2022] [Indexed: 12/15/2022] Open
Abstract
The Kelch-like (KLHL) family members consist of three domains: bric-a-brac, tramtrack, broad complex/poxvirus and zinc finger domain, BACK domain and Kelch domain, which combine and interact with Cullin3 to form an E3 ubiquitin ligase. Research has indicated that KLHL family members ubiquitinate target substrates to regulate physiological and pathological processes, including tumorigenesis and progression. KLHL19, a member of the KLHL family, is associated with tumorigenesis and drug resistance. However, the regulation and cross talks of other KLHL family members, which also play roles in cancer, are still unclear. Our review mainly explores studies concerning the roles of other KLHL family members in tumor-related regulation to provide novel insights into KLHL family members.
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Affiliation(s)
- Ganghui Ye
- The Affiliated Hospital of Medical School, Ningbo UniversityNingbo 315020, Zhejiang, P. R. China,Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, P. R. China
| | - Jie Wang
- The Affiliated Hospital of Medical School, Ningbo UniversityNingbo 315020, Zhejiang, P. R. China,Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, P. R. China
| | - Weili Yang
- Yinzhou People’s Hospital of Medical School, Ningbo UniversityNingbo 315040, Zhejiang, P. R. China
| | - Jinyun Li
- The Affiliated Hospital of Medical School, Ningbo UniversityNingbo 315020, Zhejiang, P. R. China,Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, P. R. China
| | - Meng Ye
- The Affiliated Hospital of Medical School, Ningbo UniversityNingbo 315020, Zhejiang, P. R. China,Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, P. R. China
| | - Xiaofeng Jin
- The Affiliated Hospital of Medical School, Ningbo UniversityNingbo 315020, Zhejiang, P. R. China,Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo UniversityNingbo 315211, Zhejiang, P. R. China
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Liu W, Ma Z, Wu Y, Yuan C, Zhang Y, Liang Z, Yang Y, Zhang W, Jiao P. MST4 negatively regulates type I interferons production via targeting MAVS-mediated pathway. Cell Commun Signal 2022; 20:103. [PMID: 35820905 PMCID: PMC9274187 DOI: 10.1186/s12964-022-00922-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/15/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cytosolic RNA sensing can elicit immune responses against viral pathogens. However, antiviral responses must be tightly regulated to avoid the uncontrolled production of type I interferons (IFN) that might have deleterious effects on the host. Upon bacterial infection, the germinal center kinase MST4 can directly phosphorylate the adaptor TRAF6 to limit the inflammatory responses, thereby avoiding the damage caused by excessive immune activation. However, the molecular mechanism of how MST4 regulates virus-mediated type I IFN production remains unknown. METHODS The expression levels of IFN-β, IFIT1, and IFIT2 mRNA were determined by RT-PCR. The expression levels of p-IRF3, IRF3, RIG-I, MAVS, and MST4 proteins were determined by Western blot. The effect of secreted level of IFN-β was measured by ELISA. The relationship between MST4 and MAVS was investigated by immunofluorescence staining and coimmunoprecipitation. RESULTS In this study, we reported that MST4 can act as a negative regulator of type I IFN production. Ectopic expression of MST4 suppressed the Poly (I:C) (polyino-sinic-polycytidylic acid)- and Sendai virus (SeV)-triggered production of type I IFN, while the knockdown of MST4 enhanced the production of type I IFN. Mechanistically, upon SeV infection, the MST4 competed with TRAF3 to bind to the 360-540 domain of MAVS, thereby inhibiting the TRAF3/MAVS association. Additionally, MST4 facilitated the interaction between the E3 ubiquitin ligase Smurf1 and MAVS. This promoted the K48-linked ubiquitination of MAVS, thereby accelerating the ubiquitin-mediated proteasome degradation of MAVS. CONCLUSIONS Our findings showed that MST4 acted as a crucial negative regulator of RLR-mediated type I IFN production. Video Abstract.
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Affiliation(s)
- Wei Liu
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Zhenling Ma
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yaru Wu
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Cui Yuan
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yanyan Zhang
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Zeyang Liang
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yu Yang
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Wenwen Zhang
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Pengtao Jiao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
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Motoo I, Nanjo S, Ando T, Yamashita S, Ushijima T, Yasuda I. Methylation silencing of ULK2 via epithelial-mesenchymal transition causes transformation to poorly differentiated gastric cancers. Gastric Cancer 2022; 25:325-335. [PMID: 34554345 DOI: 10.1007/s10120-021-01250-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/09/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Diffuse-type gastric cancers (DGC) typically have a poor prognosis related to their invasion and metastasis, in which the epithelial-mesenchymal transition (EMT) is the initiation step. ULK2 plays a role in the autophagy initiation, which might provide a survival advantage in cancer cells. Although knock-down of ULK2 reportedly induces autophagy and EMT in a lung cancer cell line, the mechanism of EMT via the down-regulation of ULK2, as well as its clinical significance, remains yet unclear. The present study, therefore, aims at clarifying this mechanism and its clinical significance in gastric cancers. METHODS We examined ULK2 mRNA expression in gastric cancer tissues and normal gastric tissues of healthy people. The effects of knock-downed ULK2 were examined in two gastric cancer cells, which were investigated in terms of their gene expression changes by the mRNA microarray. RESULTS ULK2 was strongly expressed in intestinal-type cancers but was scarcely expressed in DGC by immunohistochemical staining. Furthermore, we found that ULK2 was methylated in DGC and was unmethylated in corresponding adjacent normal tissues. Then, we validated whether knock-down of ULK2 could induce autophagy, cell migration, and EMT in NUGC3 and MKN45 cells. Using mRNA microarray analysis, we confirmed that knock-down of ULK2 changed expressions of oncogenic genes associated with cell migration and EMT. Autophagy inhibitor suppressed cell migration and EMT induced by knock-down of ULK2 in NUGC3 and MKN45. CONCLUSION Methylation silencing of ULK2 could induce cell migration and EMT by means of autophagy induction, causing transformation to poorly differentiated cancers.
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Affiliation(s)
- Iori Motoo
- Department of Gastroenterology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Sohachi Nanjo
- Department of Gastroenterology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
| | - Takayuki Ando
- Department of Gastroenterology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Satoshi Yamashita
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Toshikazu Ushijima
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Ichiro Yasuda
- Department of Gastroenterology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
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Keum S, Yang SJ, Park E, Kang T, Choi JH, Jeong J, Hwang YE, Kim JW, Park D, Rhee S. Beta-Pix-dynamin 2 complex promotes colorectal cancer progression by facilitating membrane dynamics. Cell Oncol (Dordr) 2021; 44:1287-1305. [PMID: 34582006 PMCID: PMC8648671 DOI: 10.1007/s13402-021-00637-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 09/14/2021] [Indexed: 12/24/2022] Open
Abstract
PURPOSE Spatiotemporal regulation of cell membrane dynamics is a major process that promotes cancer cell invasion by acting as a driving force for cell migration. Beta-Pix (βPix), a guanine nucleotide exchange factor for Rac1, has been reported to be involved in actin-mediated cellular processes, such as cell migration, by interacting with various proteins. As yet, however, the molecular mechanisms underlying βPix-mediated cancer cell invasion remain unclear. METHODS The clinical significance of βPix was analyzed in patients with colorectal cancer (CRC) using public clinical databases. Pull-down and immunoprecipitation assays were employed to identify novel binding partners for βPix. Additionally, various cell biological assays including immunocytochemistry and time-lapse video microscopy were performed to assess the effects of βPix on CRC progression. A βPix-SH3 antibody delivery system was used to determine the effects of the βPix-Dyn2 complex in CRC cells. RESULTS We found that the Src homology 3 (SH3) domain of βPix interacts with the proline-rich domain of Dynamin 2 (Dyn2), a large GTPase. The βPix-Dyn2 interaction promoted lamellipodia formation, along with plasma membrane localization of membrane-type 1 matrix metalloproteinase (MT1-MMP). Furthermore, we found that Src kinase-mediated phosphorylation of the tyrosine residue at position 442 of βPix enhanced βPix-Dyn2 complex formation. Disruption of the βPix-Dyn2 complex by βPix-SH3 antibodies targeting intracellular βPix inhibited CRC cell invasion. CONCLUSIONS Our data indicate that spatiotemporal regulation of the Src-βPix-Dyn2 axis is crucial for CRC cell invasion by promoting membrane dynamics and MT1-MMP recruitment into the leading edge. The development of inhibitors that disrupt the βPix-Dyn2 complex may be a useful therapeutic strategy for CRC.
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Affiliation(s)
- Seula Keum
- Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Soo Jung Yang
- Translational Research Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, 98101, USA
| | - Esther Park
- School of Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - TaeIn Kang
- School of Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jee-Hye Choi
- Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Jangho Jeong
- Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Ye Eun Hwang
- Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Jung-Woong Kim
- Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Dongeun Park
- School of Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sangmyung Rhee
- Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea.
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Li T, Tang C, Huang Z, Yang L, Dai H, Tang B, Xiao B, Li J, Lei X. miR-144-3p inhibited the growth, metastasis and epithelial-mesenchymal transition of colorectal adenocarcinoma by targeting ZEB1/2. Aging (Albany NY) 2021; 13:17349-17369. [PMID: 34226299 PMCID: PMC8312459 DOI: 10.18632/aging.203225] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 06/04/2021] [Indexed: 01/05/2023]
Abstract
miR-144-3p is aberrantly expressed in several types of human cancer and functions as a tumor suppressor by inhibiting metastasis. However, the clinical significance and biological function of miR-144-3p in colorectal adenocarcinoma (CRA) have yet to be elucidated. Here we reported that miR-144-3p expression level was significantly down-regulated in CRA tissues compared with matched noncancerous colorectal mucosae tissues. Low miR-144-3p expression was correlated with adverse clinicopathologic characteristics and poor prognosis of CRA patients. Cox regression analysis showed that low miR-144-3p expression was an independent risk factor for DFS and OS in CRA. In vitro and in vivo assays showed that miR-144-3p significantly inhibited proliferation, migration and invasion of CRA cells. In particular, miR-144-3p could suppress EMT process of CRA cells by regulating the cytoskeleton and EMT markers. Bioinformatics analysis indicated that EMT associated transcription factors ZEB1 and ZEB2 were potential targets of miR-144-3p, and miR-144-3p inhibited ZEB1 and ZEB2 expression and was negatively correlated with their expression in CRA. Finally, we confirmed that ZEB1 and ZEB2 down-regulation collaboratively mediated the inhibitory effect of miR-144-3p on proliferation, invasion and EMT of CRA cells. In conclusion, our study provided evidence that miR-144-3p could inhibit CRA cell proliferation, invasion and EMT by targeting ZEB1/2.
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Affiliation(s)
- Taiyuan Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
- Gastrointestinal Surgical Institute, Nanchang University, Nanchang 330006, Jiangxi, China
| | - Cheng Tang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Zhixiang Huang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Lingling Yang
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Hua Dai
- Department of Pathology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Bo Tang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Benping Xiao
- Department of General Surgery, Jiangxi Pingxiang People’s Hospital, Pingxiang 337000, Jiangxi, China
| | - Jianfeng Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Xiong Lei
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
- Gastrointestinal Surgical Institute, Nanchang University, Nanchang 330006, Jiangxi, China
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9
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Cheng K, Larabee SM, Tolaymat M, Hanscom M, Shang AC, Schledwitz A, Hu S, Drachenberg CB, Zhan M, Chahdi A, Raufman JP. Targeted intestinal deletion of Rho guanine nucleotide exchange factor 7, βPIX, impairs enterocyte proliferation, villus maturation, and mucosal defenses in mice. Am J Physiol Gastrointest Liver Physiol 2021; 320:G627-G643. [PMID: 33566751 PMCID: PMC8238171 DOI: 10.1152/ajpgi.00415.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 02/01/2021] [Accepted: 02/10/2021] [Indexed: 01/31/2023]
Abstract
Rho guanine nucleotide exchange factors (RhoGEFs) regulate Rho GTPase activity and cytoskeletal and cell adhesion dynamics. βPix, a CDC42/RAC family RhoGEF encoded by ARHGEF7, is reported to modulate human colon cancer cell proliferation and postwounding restitution of rat intestinal epithelial monolayers. We hypothesized that βPix plays a role in maintaining intestinal epithelial homeostasis. To test this hypothesis, we examined βPix distribution in the human and murine intestine and created mice with intestinal epithelial-selective βPix deletion [βPixflox/flox/Tg(villin-Cre); Arhgef7 CKO mice]. Using Arhgef7 conditional knockout (CKO) and control mice, we investigated the consequences of βPix deficiency in vivo on intestinal epithelial and enteroid development, dextran sodium sulfate-induced mucosal injury, and gut permeability. In normal human and murine intestines, we observed diffuse cytoplasmic and moderate nuclear βPix immunostaining in enterocytes. Arhgef7 CKO mice were viable and fertile, with normal gross intestinal architecture but reduced small intestinal villus height, villus-to-crypt ratio, and goblet cells; small intestinal crypt cells had reduced Ki67 staining, compatible with impaired cell proliferation. Enteroids derived from control mouse small intestine were viable for more than 20 passages, but those from Arhgef7 CKO mice did not survive beyond 24 h despite addition of Wnt proteins or conditioned media from normal enteroids. Adding a Rho kinase (ROCK) inhibitor partially rescued CKO enteroid development. Compared with littermate control mice, dextran sodium sulfate-treated βPix-deficient mice lost more weight and had greater impairment of intestinal barrier function, and more severe colonic mucosal injury. These findings reveal βPix expression is important for enterocyte development, intestinal homeostasis, and resistance to toxic injury.NEW & NOTEWORTHY To explore the role of βPix, a guanine nucleotide exchange factor encoded by ARHGEF7, in intestinal development and physiology, we created mice with intestinal epithelial cell Arhgef7/βPix deficiency. We found βPix essential for normal small intestinal epithelial cell proliferation, villus development, and mucosal resistance to injury. Moreover, Rho kinase signaling mediated developmental arrest observed in enteroids derived from βPix-deficient small intestinal crypts. Our studies provide insights into the role Arhgef7/βPix plays in intestinal epithelial homeostasis.
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Affiliation(s)
- Kunrong Cheng
- Veterans Affairs Maryland Healthcare System, Baltimore, Maryland
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Shannon M Larabee
- Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland
| | - Mazen Tolaymat
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Marie Hanscom
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Aaron C Shang
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Alyssa Schledwitz
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Shien Hu
- Veterans Affairs Maryland Healthcare System, Baltimore, Maryland
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Cinthia B Drachenberg
- Department of Pathology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Min Zhan
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland
| | - Ahmed Chahdi
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Jean-Pierre Raufman
- Veterans Affairs Maryland Healthcare System, Baltimore, Maryland
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Maryland
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland
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10
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Jiang X, Qin Y, Kun L, Zhou Y. The Significant Role of the Microfilament System in Tumors. Front Oncol 2021; 11:620390. [PMID: 33816252 PMCID: PMC8010179 DOI: 10.3389/fonc.2021.620390] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 01/26/2021] [Indexed: 12/11/2022] Open
Abstract
Actin is the structural protein of microfilaments, and it usually exists in two forms: monomer and polymer. Among them, monomer actin is a spherical molecule composed of a polypeptide chain, also known as spherical actin. The function of actin polymers is to produce actin filaments, so it is also called fibroactin. The actin cytoskeleton is considered to be an important subcellular filament system. It interacts with numerous relevant proteins and regulatory cells, regulating basic functions, from cell division and muscle contraction to cell movement and ensuring tissue integrity. The dynamic reorganization of the actin cytoskeleton has immense influence on the progression and metastasis of cancer as well. This paper explores the significance of the microfilament network, the dynamic changes of its structure and function in the presence of a tumor, the formation process around the actin system, and the relevant proteins that may be target molecules for anticancer drugs so as to provide support and reference for interlinked cancer treatment research in the future.
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Affiliation(s)
- Xin Jiang
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, China
| | - Yiming Qin
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, China
| | - Liu Kun
- Department of Neurosurgery, Brain Hospital of Hunan Province, Clinical Medical School, Hunan University of Chinese Medicine, Changsha, China
| | - Yanhong Zhou
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, China
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11
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Omelchenko T, Hall A, Anderson KV. β-Pix-dependent cellular protrusions propel collective mesoderm migration in the mouse embryo. Nat Commun 2020; 11:6066. [PMID: 33247143 PMCID: PMC7695707 DOI: 10.1038/s41467-020-19889-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 10/26/2020] [Indexed: 01/13/2023] Open
Abstract
Coordinated directional migration of cells in the mesoderm layer of the early embryo is essential for organization of the body plan. Here we show that mesoderm organization in mouse embryos depends on β-Pix (Arhgef7), a guanine nucleotide exchange factor for Rac1 and Cdc42. As early as E7.5, β-Pix mutants have an abnormally thick mesoderm layer; later, paraxial mesoderm fails to organize into somites. To define the mechanism of action of β-Pix in vivo, we optimize single-cell live-embryo imaging, cell tracking, and volumetric analysis of individual and groups of mesoderm cells. Use of these methods shows that wild-type cells move in the same direction as their neighbors, whereas adjacent β-Pix mutant cells move in random directions. Wild-type mesoderm cells have long polarized filopodia-like protrusions, which are absent in β-Pix mutants. The data indicate that β-Pix-dependent cellular protrusions drive and coordinate collective migration of the mesoderm in vivo.
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Affiliation(s)
- Tatiana Omelchenko
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA.
- Cell Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA.
| | - Alan Hall
- Cell Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Kathryn V Anderson
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA.
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12
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Connor K, Murray DW, Jarzabek MA, Tran NL, White K, Dicker P, Sweeney KJ, O’Halloran PJ, MacCarthy B, Shiels LP, Lodi F, Lambrechts D, Sarkaria JN, Schiffelers RM, Symons M, Byrne AT. Targeting the RhoGEF βPIX/COOL-1 in Glioblastoma: Proof of Concept Studies. Cancers (Basel) 2020; 12:cancers12123531. [PMID: 33256106 PMCID: PMC7761123 DOI: 10.3390/cancers12123531] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/15/2020] [Accepted: 11/19/2020] [Indexed: 12/24/2022] Open
Abstract
Simple Summary Glioblastoma (GBM) is an incurable disease with a 14-month average life-expectancy following diagnosis, and clinical management has not improved in four decades. GBM mortality is due to rapid tumour growth and invasion into surrounding normal brain. Invasive cells make complete surgical removal of the tumour impossible, and result in disease relapse. Thus, it is imperative that any new treatment strategy takes these invading cells into consideration. Bevacizumab (Bev), which prevents the formation of new blood vessels, is an FDA approved therapy, but it has failed to increase overall survival in GBM and has even been shown to increase tumour invasion in some cases. Complementary anti-invasive therapies are therefore urgently required to enhance bevacizumab efficacy. We have identified βPIX/COOL-1, a RhoGEF protein which plays an important role in GBM cell invasion and angiogenesis and could be a useful target in this setting. Abstract Glioblastoma (GBM), a highly invasive and vascular malignancy is shown to rapidly develop resistance and evolve to a more invasive phenotype following bevacizumab (Bev) therapy. Rho Guanine Nucleotide Exchange Factor proteins (RhoGEFs) are mediators of key components in Bev resistance pathways, GBM and Bev-induced invasion. To identify GEFs with enhanced mRNA expression in the leading edge of GBM tumours, a cohort of GEFs was assessed using a clinical dataset. The GEF βPix/COOL-1 was identified, and the functional effect of gene depletion assessed using 3D-boyden chamber, proliferation, and colony formation assays in GBM cells. Anti-angiogenic effects were assessed in endothelial cells using tube formation and wound healing assays. In vivo effects of βPix/COOL-1-siRNA delivered via RGD-Nanoparticle in combination with Bev was studied in an invasive model of GBM. We found that siRNA-mediated knockdown of βPix/COOL-1 in vitro decreased cell invasion, proliferation and increased apoptosis in GBM cell lines. Moreover βPix/COOL-1 mediated endothelial cell migration in vitro. Mice treated with βPix/COOL-1 siRNA-loaded RGD-Nanoparticle and Bev demonstrated a trend towards improved median survival compared with Bev monotherapy. Our hypothesis generating study suggests that the RhoGEF βPix/COOL-1 may represent a target of vulnerability in GBM, in particular to improve Bev efficacy.
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Affiliation(s)
- Kate Connor
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland; (K.C.); (D.W.M.); (M.A.J.); (K.W.); (K.J.S.); (P.J.O.); (B.M.); (L.P.S.)
| | - David W. Murray
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland; (K.C.); (D.W.M.); (M.A.J.); (K.W.); (K.J.S.); (P.J.O.); (B.M.); (L.P.S.)
| | - Monika A. Jarzabek
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland; (K.C.); (D.W.M.); (M.A.J.); (K.W.); (K.J.S.); (P.J.O.); (B.M.); (L.P.S.)
| | - Nhan L. Tran
- Department of Cancer Biology and Neurological Surgery, Mayo Clinic Arizona, Scottsdale, AZ 85054, USA;
| | - Kieron White
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland; (K.C.); (D.W.M.); (M.A.J.); (K.W.); (K.J.S.); (P.J.O.); (B.M.); (L.P.S.)
| | - Patrick Dicker
- Epidemiology & Public Health, Royal College of Surgeons in Ireland, Dublin 2, Ireland;
| | - Kieron J. Sweeney
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland; (K.C.); (D.W.M.); (M.A.J.); (K.W.); (K.J.S.); (P.J.O.); (B.M.); (L.P.S.)
- National Neurosurgical Department, Beaumont Hospital, Dublin 9, Ireland
| | - Philip J. O’Halloran
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland; (K.C.); (D.W.M.); (M.A.J.); (K.W.); (K.J.S.); (P.J.O.); (B.M.); (L.P.S.)
- National Neurosurgical Department, Beaumont Hospital, Dublin 9, Ireland
| | - Brian MacCarthy
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland; (K.C.); (D.W.M.); (M.A.J.); (K.W.); (K.J.S.); (P.J.O.); (B.M.); (L.P.S.)
| | - Liam P. Shiels
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland; (K.C.); (D.W.M.); (M.A.J.); (K.W.); (K.J.S.); (P.J.O.); (B.M.); (L.P.S.)
| | - Francesca Lodi
- Center for Cancer Biology, Laboratory for Translational Genetics, Vlaams Instituut voor Biotechnologie (VIB), B-3000 Leuven, Belgium; (F.L.); (D.L.)
| | - Diether Lambrechts
- Center for Cancer Biology, Laboratory for Translational Genetics, Vlaams Instituut voor Biotechnologie (VIB), B-3000 Leuven, Belgium; (F.L.); (D.L.)
| | - Jann N. Sarkaria
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN 55905, USA;
| | - Raymond M. Schiffelers
- Department of Clinical Chemistry and Haematology, University Medical Center Utrecht, 100 3584 Utrecht, The Netherlands;
| | - Marc Symons
- Department of Oncology & Cell Biology, Feinstein Institute for Medical Research at North Shore-LIJ, Manhasset, NY 11030, USA;
| | - Annette T. Byrne
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland; (K.C.); (D.W.M.); (M.A.J.); (K.W.); (K.J.S.); (P.J.O.); (B.M.); (L.P.S.)
- Correspondence: ; Tel.: +353-1-402-8673
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13
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Zhang E, Dong X, Chen S, Shao J, Zhang P, Wang Y, Wang X. Ubiquitin ligase KLHL2 promotes the degradation and ubiquitination of ARHGEF7 protein to suppress renal cell carcinoma progression. Am J Cancer Res 2020; 10:3345-3357. [PMID: 33163274 PMCID: PMC7642650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023] Open
Abstract
Recent studies have revealed that ARHGEF7 is upregulated in many malignant tumors, but the underlying molecular mechanisms to this response remain to be fully elucidated. In this study, we confirm that ARHGEF7 physically interacts with KLHL2, which was previously identified to be an E3 ubiquitin ligase. KLHL2 is capable of promoting ARHGEF7 degradation via the ubiquitin-proteasome pathway. We identify that the Kelch domain of KLHL2 is necessary for binding with ARHGEF7 and downstream activities. In addition, we find that ARHGEF7 is overexpressed in clear cell renal cell carcinoma (ccRCC) specimens, and that the level of expression negatively correlates with that of KLHL2. Moreover, we utilize knockdown loss-of-function assays to demonstrate that ARHGEF7 in 786-O and A498 cell lines can act as a regulator of cell proliferation, migration and invasion, and that these effects can be reversed by KLHL2 inactivation. Taken together, our data suggest that ARHGEF7 is a putative oncogene that functions via an interaction with KLHL2, and control of ARHGEF7 can be a potential future target to inhibit tumor progression.
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Affiliation(s)
- Encheng Zhang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
| | - Xiao Dong
- Department of Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
| | - Siteng Chen
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
| | - Jialiang Shao
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
| | - Pingzhao Zhang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan UniversityShanghai, China
| | - Yuqi Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan UniversityShanghai, China
| | - Xiang Wang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
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14
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Deng L, Li T, Liao Y, Liu S, Xie Z, Huang Z, Dai H, Li J, Lei X. Peritumoral activated hepatic stellate cells are associated with hepatic recurrence for resectable colorectal adenocarcinoma liver metastasis following resection. Oncol Lett 2020; 20:287. [PMID: 33014165 PMCID: PMC7520724 DOI: 10.3892/ol.2020.12150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 07/14/2020] [Indexed: 12/24/2022] Open
Abstract
The formation of the pre-metastatic niche (PMN), which precedes the establishment of tumor lesions, plays a critical role in cancer recurrence and metastasis. Hepatic stellate cells (HSCs), a critical liver stromal cell component, can be induced to facilitate metastasis by modeling liver PMN formation. In the present study, activated HSCs were observed in the peritumor non-cancerous liver tissues (PNLT) colorectal adenocarcinoma liver metastasis (CRALM), and the density of activated HSCs was higher in PNLT compared with that in normal liver tissues (NLT). High density of activated HSC in the PNLT was positively associated with the number of tumor liver metastases (P=0.036), maximum diameter of liver metastases (P=0.002), and recurrence following synchronous radical resection (P=0.003). High density of activated HSCs in the PNLT was identified as a significant and independent prognostic factor for disease-free survival (HR, 2.083; 95% CI, 1.504–2.885; P=0.016) and overall survival (HR, 2.039; 95% CI, 1.312–3.169; P=0.019). Functionally, in vitro assays revealed that activated HSCs facilitated colorectal adenocarcinoma (CRA) cells to colonize the liver. Molecularly, it was demonstrated that the pro-recurrence of activated HSCs depended on paracrine hepatic growth factor. Taken together, the present results showed that high density of activated HSCs in the PNLT was an independent predictor for CRALM recurrence following resection, and they exerted their roles via their effect on CRA cell recruitment and proliferation by paracrine HGF.
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Affiliation(s)
- Li Deng
- Ultrasonic Department, Jiangxi Pingxiang People's Hospital, Pingxiang, Jiangxi 337000, P.R. China
| | - Taiyuan Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.,Gastrointeral Surgical Institute of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yuanyuan Liao
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Shuang Liu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhen Xie
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhixiang Huang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Hua Dai
- Department of Pathology, The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Jianfeng Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xiong Lei
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.,Gastrointeral Surgical Institute of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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15
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Arslan AA, Tuminello S, Yang L, Zhang Y, Durmus N, Snuderl M, Heguy A, Zeleniuch-Jacquotte A, Shao Y, Reibman J. Genome-Wide DNA Methylation Profiles in Community Members Exposed to the World Trade Center Disaster. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17155493. [PMID: 32751422 PMCID: PMC7432006 DOI: 10.3390/ijerph17155493] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/22/2020] [Accepted: 07/25/2020] [Indexed: 12/17/2022]
Abstract
The primary goal of this pilot study was to assess feasibility of studies among local community members to address the hypothesis that complex exposures to the World Trade Center (WTC) dust and fumes resulted in long-term epigenetic changes. We enrolled 18 WTC-exposed cancer-free women from the WTC Environmental Health Center (WTC EHC) who agreed to donate blood samples during their standard clinical visits. As a reference WTC unexposed group, we randomly selected 24 age-matched cancer-free women from an existing prospective cohort who donated blood samples before 11 September 2001. The global DNA methylation analyses were performed using Illumina Infinium MethylationEpic arrays. Statistical analyses were performed using R Bioconductor package. Functional genomic analyses were done by mapping the top 5000 differentially expressed CpG sites to the Kyoto Encyclopedia of Genes and Genomes (KEGG) Pathway database. Among cancer-free subjects, we observed substantial methylation differences between WTC-exposed and unexposed women. The top 15 differentially methylated gene probes included BCAS2, OSGIN1, BMI1, EEF1A2, SPTBN5, CHD8, CDCA7L, AIDA, DDN, SNORD45C, ZFAND6, ARHGEF7, UBXN8, USF1, and USP12. Several cancer-related pathways were enriched in the WTC-exposed subjects, including endocytosis, mitogen-activated protein kinase (MAPK), viral carcinogenesis, as well as Ras-associated protein-1 (Rap1) and mammalian target of rapamycin (mTOR) signaling. The study provides preliminary data on substantial differences in DNA methylation between WTC-exposed and unexposed populations that require validation in further studies.
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Affiliation(s)
- Alan A. Arslan
- Department of Obstetrics and Gynecology, New York University Langone Health, New York, NY 10016, USA
- Department of Population Health, New York University Langone Health, New York, NY 10016, USA; (S.T.); (L.Y.); (Y.Z.); (A.Z.-J.); (Y.S.)
- NYU Perlmutter Comprehensive Cancer Center, New York, NY 10016, USA
- Correspondence:
| | - Stephanie Tuminello
- Department of Population Health, New York University Langone Health, New York, NY 10016, USA; (S.T.); (L.Y.); (Y.Z.); (A.Z.-J.); (Y.S.)
| | - Lei Yang
- Department of Population Health, New York University Langone Health, New York, NY 10016, USA; (S.T.); (L.Y.); (Y.Z.); (A.Z.-J.); (Y.S.)
| | - Yian Zhang
- Department of Population Health, New York University Langone Health, New York, NY 10016, USA; (S.T.); (L.Y.); (Y.Z.); (A.Z.-J.); (Y.S.)
| | - Nedim Durmus
- Department of Medicine, New York University Langone Health, New York, NY 10016, USA; (N.D.); (J.R.)
| | - Matija Snuderl
- Department of Pathology, New York University Langone Health, New York, NY 10016, USA; (M.S.); (A.H.)
| | - Adriana Heguy
- Department of Pathology, New York University Langone Health, New York, NY 10016, USA; (M.S.); (A.H.)
- NYU Langone’s Genome Technology Center, New York, NY 10016, USA
| | - Anne Zeleniuch-Jacquotte
- Department of Population Health, New York University Langone Health, New York, NY 10016, USA; (S.T.); (L.Y.); (Y.Z.); (A.Z.-J.); (Y.S.)
- NYU Perlmutter Comprehensive Cancer Center, New York, NY 10016, USA
| | - Yongzhao Shao
- Department of Population Health, New York University Langone Health, New York, NY 10016, USA; (S.T.); (L.Y.); (Y.Z.); (A.Z.-J.); (Y.S.)
- NYU Perlmutter Comprehensive Cancer Center, New York, NY 10016, USA
| | - Joan Reibman
- Department of Medicine, New York University Langone Health, New York, NY 10016, USA; (N.D.); (J.R.)
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16
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Kotelevets L, Chastre E. Rac1 Signaling: From Intestinal Homeostasis to Colorectal Cancer Metastasis. Cancers (Basel) 2020; 12:cancers12030665. [PMID: 32178475 PMCID: PMC7140047 DOI: 10.3390/cancers12030665] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/06/2020] [Accepted: 03/08/2020] [Indexed: 12/14/2022] Open
Abstract
The small GTPase Rac1 has been implicated in a variety of dynamic cell biological processes, including cell proliferation, cell survival, cell-cell contacts, epithelial mesenchymal transition (EMT), cell motility, and invasiveness. These processes are orchestrated through the fine tuning of Rac1 activity by upstream cell surface receptors and effectors that regulate the cycling Rac1-GDP (off state)/Rac1-GTP (on state), but also through the tuning of Rac1 accumulation, activity, and subcellular localization by post translational modifications or recruitment into molecular scaffolds. Another level of regulation involves Rac1 transcripts stability and splicing. Downstream, Rac1 initiates a series of signaling networks, including regulatory complex of actin cytoskeleton remodeling, activation of protein kinases (PAKs, MAPKs) and transcription factors (NFkB, Wnt/β-catenin/TCF, STAT3, Snail), production of reactive oxygen species (NADPH oxidase holoenzymes, mitochondrial ROS). Thus, this GTPase, its regulators, and effector systems might be involved at different steps of the neoplastic progression from dysplasia to the metastatic cascade. After briefly placing Rac1 and its effector systems in the more general context of intestinal homeostasis and in wound healing after intestinal injury, the present review mainly focuses on the several levels of Rac1 signaling pathway dysregulation in colorectal carcinogenesis, their biological significance, and their clinical impact.
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Affiliation(s)
- Larissa Kotelevets
- Institut National de la Santé et de la Recherche Médicale, UMR S 938, Centre de Recherche Saint-Antoine, 75012 Paris, France
- Sorbonne Université, Hôpital Saint-Antoine, Site Bâtiment Kourilsky, 75012 Paris, France
- Correspondence: (L.K.); (E.C.)
| | - Eric Chastre
- Institut National de la Santé et de la Recherche Médicale, UMR S 938, Centre de Recherche Saint-Antoine, 75012 Paris, France
- Sorbonne Université, Hôpital Saint-Antoine, Site Bâtiment Kourilsky, 75012 Paris, France
- Correspondence: (L.K.); (E.C.)
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Li T, Deng L, He X, Jiang G, Hu F, Ye S, You Y, Duanmu J, Dai H, Huang G, Tang C, Lei X. MST4 Predicts Poor Prognosis And Promotes Metastasis By Facilitating Epithelial-Mesenchymal Transition In Gastric Cancer. Cancer Manag Res 2019; 11:9353-9369. [PMID: 31807065 PMCID: PMC6842314 DOI: 10.2147/cmar.s219689] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/27/2019] [Indexed: 12/24/2022] Open
Abstract
Background Metastasis is the main cause for gastric cancer (GC)-related deaths. Better understanding of GC metastatic mechanism would provide novel diagnostic markers and therapeutic targets. Though it has been reported that mammalian sterile-20-like kinase 4 (MST4) exerts the oncogenic role in other tumors, the prognostic value and biological role of MST4 in GC are still unknown. Methods The expression level of MST4 in GC was analyzed by using TCGA database. Then, Western blot and polymerase chain reaction (PCR) were used to determine the MST4 expression in GC tissues and cell lines. Immunohistochemistry was performed to investigate the expression of proteins in human GC tissues, and its correlation with clinicopathologic parameters as well as the prognosis for patients with GC was analyzed. In addition, the biological function and its molecular mechanism of MST4 in GC were investigated by in vitro and in vivo assays. Results It demonstrated that MST4 expression was significantly upregulated in GC tissues and cell lines. High expression of MST4 was correlated with aggressive clinicopathological parameters such as lymph node metastasis, lymphovascular invasion (all P < 0.05). GC patients with high MST4 expression had both shorter overall survival (OS) and disease-free survival (DFS) than those with low MST4 expression (all P < 0.05). MST4 expression was an independent and significant risk factor for OS and DFS of GC patients (all P < 0.05). Results of functional experiments showed that MST4 could promote GC cells migration, invasion in vitro and metastasis in vivo. In terms of mechanism, MST4 promoted metastasis by facilitating epithelial–mesenchymal transition (EMT) through activating Ezrin pathway in GC. Further studies indicate that down-regulated miR-124-3p expression contributes to upregulated MST4 expression in GC. Conclusion Our data showed that MST4 predicts poor prognosis and promotes metastasis by facilitating epithelial–mesenchymal transition in GC. Therefore, our study suggests that MST4 can be used as a valuable prognostic biomarker and a potential therapeutic target in GC.
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Affiliation(s)
- Taiyuan Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Li Deng
- Department of Diagnostic Medical Sonography, Jiangxi Pingxiang People's Hospital, Pingxiang 337000, Jiangxi, People's Republic of China
| | - Xin He
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Gongan Jiang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Fang Hu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Shanping Ye
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Yu You
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Jinzhong Duanmu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Hua Dai
- Department of Pathology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Guodong Huang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Cheng Tang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
| | - Xiong Lei
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, People's Republic of China
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