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He X, Nie Y, Zhou H, Hu R, Li Y, He T, Zhu J, Yang Y, Liu M. Structural Insight into the Binding of TGIF1 to SIN3A PAH2 Domain through a C-Terminal Amphipathic Helix. Int J Mol Sci 2021; 22:ijms222312631. [PMID: 34884456 PMCID: PMC8657803 DOI: 10.3390/ijms222312631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 02/03/2023] Open
Abstract
TGIF1 is a transcriptional repressor playing crucial roles in human development and function and is associated with holoprosencephaly and various cancers. TGIF1-directed transcriptional repression of specific genes depends on the recruitment of corepressor SIN3A. However, to date, the exact region of TGIF1 binding to SIN3A was not clear, and the structural basis for the binding was unknown. Here, we demonstrate that TGIF1 utilizes a C-terminal domain (termed as SIN3A-interacting domain, SID) to bind with SIN3A PAH2. The TGIF1 SID adopts a disordered structure at the apo state but forms an amphipathic helix binding into the hydrophobic cleft of SIN3A PAH2 through the nonpolar side at the holo state. Residues F379, L382 and V383 of TGIF1 buried in the hydrophobic core of the complex are critical for the binding. Moreover, homodimerization of TGIF1 through the SID and key residues of F379, L382 and V383 was evidenced, which suggests a dual role of TGIF1 SID and a correlation between dimerization and SIN3A-PAH2 binding. This study provides a structural insight into the binding of TGIF1 with SIN3A, improves the knowledge of the structure–function relationship of TGIF1 and its homologs and will help in recognizing an undiscovered SIN3A-PAH2 binder and developing a peptide inhibitor for cancer treatment.
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Affiliation(s)
- Xiaoling He
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China
| | - Yao Nie
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Heng Zhou
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Hu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Li
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ting He
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China
| | - Jiang Zhu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunhuang Yang
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maili Liu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Zhang J, Zhang F, Fan J, Feng B. TGIF1 Knockdown Inhibits the Proliferation and Invasion of Gastric Cancer via AKT Signaling Pathway. Cancer Manag Res 2021; 13:2603-2612. [PMID: 33776478 PMCID: PMC7987261 DOI: 10.2147/cmar.s254348] [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: 03/17/2020] [Accepted: 12/19/2020] [Indexed: 11/26/2022] Open
Abstract
Introduction Gastric cancer is a kind of cancer with high mortality. TGIF1, as a transcription inhibitor, can inhibit the transcription of specific genes. The purpose of this study was to investigate the role of TGIF1 in gastric cancer by knocking down TGIF1. Methods The expression of TGIF1 was detected by qPCR and Western blotting; CCK8 assay, colony formation assay, transwell, and wound-healing assay were used to evaluate the proliferation, migration, and invasion of gastric cancer cells; cell apoptosis was analyzed by flow cytometry and Hoechst-PI double staining; cell cycle was detected by flow cytometry. Gelatinase experiment was performed to detect the expression level of MMP-2; apoptosis related proteins and AKT singling pathway were assessed by Western blotting. Results Knockdown of TGIF1 inhibited the proliferation, migration, and invasion of gastric cancer cells and promoted apoptosis. TGIF1 knockdown down-regulated the expression levels of MMP-2, Bcl2, CyclinD1, and p-Akt, and up-regulated the expression levels of Bax and Caspase3. These data suggested that knockdown of TGIF1 inhibited the development of gastric cancer via AKT signaling pathway. Conclusion TGIF1 knockdown inhibited the proliferation, migration, and invasion and promoted apoptosis of gastric cancer cells via the AKT signaling pathway, suggesting that TGIF1 is considered a potential inhibitor in gastric cancer.
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Affiliation(s)
- Jing Zhang
- Pharmacy Department, Hebei Chemical and Pharmaceutical College, Shijiazhuang, Hebei 050026, People's Republic of China
| | - Feiyan Zhang
- Department of Outpatient Operating Room, Heze Municipal Hospital, Heze City, Shandong Province, 274000, People's Republic of China
| | - Jiye Fan
- Department of Pharmaceutical Engineering, Hebei Chemical and Pharmaceutical College, Shijiazhuang, Hebei 050026, People's Republic of China.,College of Life Science, Hebei Normal University, Shijiazhuang, Hebei 050024, People's Republic of China
| | - Bin Feng
- Department of Gastrointestinal Surgery, Heze Municipal Hospital, Heze City, 274000 Shandong Province, People's Republic of China
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Li J, Hu M, Liu N, Li H, Yu Z, Yan Q, Zhou M, Wang Y, Song Y, Pan G, Liang F, Chen R. HDAC3 deteriorates colorectal cancer progression via microRNA-296-3p/TGIF1/TGFβ axis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:248. [PMID: 33203425 PMCID: PMC7670781 DOI: 10.1186/s13046-020-01720-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 09/25/2020] [Indexed: 12/20/2022]
Abstract
Background The mechanism of histone deacetylase 3 (HDAC3) in colorectal cancer (CRC) has already been discussed. However, the feedback loop of HDAC3/microRNA (miR)-296-3p and transforming growth factor β-induced factor 1 (TGIF1) in CRC has not been explained clearly. Thus, the mainstay of this study is to delve out the mechanism of this axis in CRC. Methods To demonstrate that HDAC3 regulates the miR-296-3p/TGIF1/TGFβ axis and is involved in CRC progression, a series of cell biological, molecular and biochemical approaches were conducted from the clinical research level, in vitro experiments and in vivo experiments. These methods included RT-qPCR, Western blot assay, cell transfection, MTT assay, EdU assay, flow cytometry, scratch test, Transwell assay, dual luciferase reporter gene assay, chromatin immunoprecipitation, nude mouse xenograft, H&E staining and TUNEL staining. Results Higher HDAC3 and TGIF1 and lower miR-296-3p expression levels were found in CRC tissues. HDAC3 was negatively connected with miR-296-3p while positively correlated with TGIF1, and miR-296-3p was negatively connected with TGIF1. Depleted HDAC3 elevated miR-296-3p expression and reduced TGIF1 expression, decreased TGFβ pathway-related proteins, inhibited CRC proliferation, invasion, and migration in vitro and slowed down tumor growth and induction of apoptosis in vivo, which were reversed by miR-296-3p knockdown. Restored miR-296-3p suppressed TGIF1 and reduced TGFβ pathway-related proteins, inhibited CRC proliferation, invasion, and migration in vitro and slowed down tumor growth and induction of apoptosis in vivo, which were reversed by TGIF1 overexpression. Conclusion This study illustrates that down-regulation of HDAC3 or TGIF1 or up-regulation of miR-296-3p discourages CRC cell progression and slows down tumor growth, which guides towards a novel direction of CRC treatment.
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Affiliation(s)
- Jinxiao Li
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China
| | - Man Hu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China
| | - Na Liu
- Rehabilitation Department of traditional Chinese Medicine, Union Red Cross Hospital, Wuhan, 430015, China
| | - Huarong Li
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China
| | - Zhaomin Yu
- Department of oncology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, 430071, China
| | - Qian Yan
- First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, 510405, China
| | - Minfeng Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China
| | - Yayuan Wang
- College of Acupuncture & Moxibustion and Orthopaedics, Hubei University of Chinese Medicine, Wuhan, 430060, China
| | - Yanjuan Song
- College of Acupuncture & Moxibustion and Orthopaedics, Hubei University of Chinese Medicine, Wuhan, 430060, China
| | - Guangtao Pan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China
| | - Fengxia Liang
- College of Acupuncture & Moxibustion and Orthopaedics, Hubei University of Chinese Medicine, Wuhan, 430060, China.
| | - Rui Chen
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China.
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Razzaque MS, Atfi A. TGIF1-Twist1 axis in pancreatic ductal adenocarcinoma. Comput Struct Biotechnol J 2020; 18:2568-2572. [PMID: 33005315 PMCID: PMC7520386 DOI: 10.1016/j.csbj.2020.09.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/11/2020] [Accepted: 09/11/2020] [Indexed: 12/18/2022] Open
Abstract
TG-interacting factor 1 (TGIF1) exerts inhibitory effects on transforming growth factor-beta (TGF-β) signaling by suppressing Smad signaling pathway at multiple levels. TGIF1 activity is important for normal embryogenesis and organogenesis, yet its dysregulation can culminate in tumorigenesis. For instance, increased expression of TGIF1 correlates with poor prognosis in triple-negative breast cancer patients, and enforced expression of TGIF1 facilitates Wnt-driven mammary tumorigenesis, suggesting that TGIF1 might function as an oncoprotein. Quite surprisingly, TGIF1 has recently been shown to function as a tumor suppressor in pancreatic ductal adenocarcinoma (PDAC), possibly owing to its ability to antagonize the pro-malignant transcription factor Twist1. In this article, we will briefly elaborate on the biological and clinical significance of the unique tumor-suppressive function of TGIF1 and its functional interaction with Twist1 in the context of PDAC pathogenesis and progression.
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Affiliation(s)
- Mohammed S Razzaque
- Department of Pathology, Lake Erie College of Osteopathic Medicine, Erie, PA, USA
| | - Azeddine Atfi
- Department of Pathology and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA
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Lin R, Han C, Ding Z, Shi H, He R, Liu J, Qian W, Zhang Q, Fu X, Deng X, Zhou S, Hou X. Knock down of BMSC-derived Wnt3a or its antagonist analogs attenuate colorectal carcinogenesis induced by chronic Fusobacterium nucleatum infection. Cancer Lett 2020; 495:165-179. [PMID: 32920199 DOI: 10.1016/j.canlet.2020.08.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 07/12/2020] [Accepted: 08/21/2020] [Indexed: 12/16/2022]
Abstract
By establishing the Fusobacterium nucleatum (F. nucleatum) infected-bone mesenchymal stem cells (BMSCs) transplantation model in APCMin/+ mice, we investigated the role of BMSCs in the development of intestinal tumors induced by F. nucleatum. ApcMin/++F. nucleatum + BMSCs mice showed increased susceptibility to intestinal tumors and accelerated tumor growth. BMSCs could also enhance tumor-initiating capability, invasive traits after F. nucleatum infection in vitro, and tumorigenicity in a nude murine model. Mechanistically, BMSCs were recruited to the submucosa, migrated to the mucosal layer, and might activate the canonical Wnt/β-catenin/TGIF axis signaling. Further mechanistic results illustrated increased production of the Wnt3a protein was found in ApcMin/++F. nucleatum + BMSCs mice, and BMSCs were likely the major source of Wnt3a. Intriguingly, a deletion of Wnt3a via BMSC interference or antagonist analogs led to a significantly attenuated capacity of ApcMin/++F. nucleatum mice to generate intestinal tumors. The findings suggest that BMSCs have the potential to migrate and accelerate F. nucleatum-induced colorectal tumorigenesis by modulating Wnt3a secretion; knockdown of BMSC-derived Wnt3a or antagonist analogs could attenuate carcinogenesis. Thus, Wnt3a might be a potential pharmaceutical target for the prevention and treatment of F. nucleatum-related colorectal cancer.
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Affiliation(s)
- Rong Lin
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, PR China
| | - Chaoqun Han
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, PR China
| | - Zhen Ding
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, PR China
| | - Huiying Shi
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, PR China
| | - Ruohang He
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, PR China
| | - Jun Liu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, PR China
| | - Wei Qian
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, PR China
| | - Qin Zhang
- Division of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, PR China
| | - Xiaochao Fu
- Hubei Center of Industrial Culture Collection and Research, Wuhan, 430022, Hubei, PR China
| | - Xiaohua Deng
- Hubei Center of Industrial Culture Collection and Research, Wuhan, 430022, Hubei, PR China
| | - Shunchang Zhou
- Division of Experimental Animals, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, PR China
| | - Xiaohua Hou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, PR China.
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Yeh BW, Yu LE, Li CC, Yang JC, Li WM, Wu YC, Wei YC, Lee HT, Kung ML, Wu WJ. The protoapigenone analog WYC0209 targets CD133+ cells: A potential adjuvant agent against cancer stem cells in urothelial cancer therapy. Toxicol Appl Pharmacol 2020; 402:115129. [PMID: 32673656 DOI: 10.1016/j.taap.2020.115129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 06/29/2020] [Accepted: 07/02/2020] [Indexed: 01/08/2023]
Abstract
Urothelial carcinoma (UC) is one of the highest incidence cancers that rank the fourth commonly diagnosed tumors worldwide. The unresectable lesions that are resistant to therapeutic interventions is the major cause leading to death. Previous studies had shown that the resistance and metastatic consequence may arise from cancer stem-like cells population. The phytochemical flavonoids have promised bioactivity and potent anti-carcinogenic effects, and trap great attentions for cancer chemoprevention and/or adjuvant chemotherapy. However, the mechanisms of flavonoids on cancer stemness is still obscured. In this study, we analyzed the biofunctional effects of as-prepared flavonoid derivative-WYC0209 on T24, BFTC905 and BFTC909 human UC cell lines. Our results demonstrated that WYC0209 significantly induced anti-cell viability on UC cells through decreased Akt/NFkB signaling. Moreover, WYC0209 enhanced the cell apoptosis through activated the caspase-3 activity and inactivated Bcl-xL expression. Interestingly, WYC0209 dramatically inhibited the cancer stem cells (CSCs) traits, including attenuation of side population and tumorsphere formation in which were through declined EMT-CSCs markers including MDR1, ABCG2 and BMI-1. We further validated the effects of WYC0209 on several CSC surface markers including CD133, CD44, SOX-2 and Nanog. Our results showed that WYC0209 markedly inhibited CD133 expressions in both transcriptional and translational levels. High expression levels of CD133 was also demonstrated in human upper tract UC specimens. In summary, our study showed that WYC0209 may potentially as an adjuvant agent to against CD133-driven UC CSCs and provide a beneficial strategy to against UC cancer therapeutics resistant.
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Affiliation(s)
- Bi-Wen Yeh
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Liang-En Yu
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ching-Chia Li
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Cohort Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Juan-Cheng Yang
- Graduate institute of natural products, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wei-Ming Li
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Cohort Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Ministry of Health and Welfare Pingtung Hospital, Pingtung, Taiwan
| | - Yang-Chang Wu
- Graduate institute of natural products, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Ching Wei
- Department of Pathology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsueh-Te Lee
- Institute of Anatomy and Cell Biology, National Yang-Ming University, Taipei, Taiwan
| | - Mei-Lang Kung
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
| | - Wen-Jeng Wu
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Cohort Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan; Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung, Taiwan.
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Haider MT, Saito H, Zarrer J, Uzhunnumpuram K, Nagarajan S, Kari V, Horn-Glander M, Werner S, Hesse E, Taipaleenmäki H. Breast cancer bone metastases are attenuated in a Tgif1-deficient bone microenvironment. Breast Cancer Res 2020; 22:34. [PMID: 32272947 PMCID: PMC7146874 DOI: 10.1186/s13058-020-01269-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/20/2020] [Indexed: 12/21/2022] Open
Abstract
Background Osteoclast activation is a hallmark of breast cancer-induced bone disease while little is known about the role of osteoblasts in this process. Recently, we identified the homeodomain protein TG-interacting factor-1 (Tgif1) as a crucial regulator of osteoblast function. In this study, we demonstrate that lack of Tgif1 also restricts the progression of breast cancer bone metastases. Methods Transwell migration assays were used to investigate the osteoblast-breast cancer cell interaction in vitro. Molecular analyses included RNA sequencing, immunoblotting, and qRT-PCR. To determine the role of Tgif1 in metastatic bone disease, 4T1 breast cancer cells were injected intracardially into mice with a germ line deletion of Tgif1 (Tgif1−/−) or control littermates (Tgif1+/+). Progression of bone metastases and alterations in the bone microenvironment were assessed using bioluminescence imaging, immunofluorescence staining, confocal microscopy, and histomorphometry. Results Medium conditioned by osteoblasts stimulated breast cancer cell migration, indicating a potential role of osteoblasts during bone metastasis progression. Tgif1 expression was strongly increased in osteoblasts upon stimulation by breast cancer cells, demonstrating the implication of Tgif1 in the osteoblast-breast cancer cell interaction. Indeed, conditioned medium from osteoblasts of Tgif1−/− mice failed to induce breast cancer cell migration compared to control, suggesting that Tgif1 in osteoblasts augments cancer cell motility. Semaphorin 3E (Sema3E), which is abundantly secreted by Tgif1−/− osteoblasts, dose-dependently reduced breast cancer cell migration while silencing of Sema3E expression in Tgif1−/− osteoblasts partially restored the impaired migration. In vivo, we observed a decreased number of breast cancer bone metastases in Tgif1−/− mice compared to control littermates. Consistently, the presence of single breast cancer cells or micro-metastases in the tibiae was reduced in Tgif1−/− mice. Breast cancer cells localized in close proximity to Endomucin-positive vascular cells as well as to osteoblasts. Although Tgif1 deficiency did not affect the bone marrow vasculature, the number and activity of osteoblasts were reduced compared to control. This suggests that the protective effect on bone metastases might be mediated by osteoblasts rather than by the bone marrow vasculature. Conclusion We propose that the lack of Tgif1 in osteoblasts increases Sema3E expression and attenuates breast cancer cell migration as well as metastases formation.
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Affiliation(s)
- Marie-Therese Haider
- Molecular Skeletal Biology Laboratory, Department of Trauma, Hand and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hiroaki Saito
- Institute of Molecular Musculoskeletal Research, University Hospital, LMU Munich, Munich, Germany
| | - Jennifer Zarrer
- Molecular Skeletal Biology Laboratory, Department of Trauma, Hand and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kevin Uzhunnumpuram
- Molecular Skeletal Biology Laboratory, Department of Trauma, Hand and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sankari Nagarajan
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen Center for Molecular Biosciences, Göttingen, Germany.,Present address: Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - Vijayalakshmi Kari
- Department of General, Visceral and Pediatric Surgery, University Medical Center Göttingen, Göttingen Center for Molecular Biosciences, Göttingen, Germany
| | - Michael Horn-Glander
- University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Werner
- Institute of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eric Hesse
- Institute of Molecular Musculoskeletal Research, University Hospital, LMU Munich, Munich, Germany
| | - Hanna Taipaleenmäki
- Molecular Skeletal Biology Laboratory, Department of Trauma, Hand and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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8
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Cai C, Nie Y, Yue X, Zhu J, Hu R, Liu M, Yang Y. Backbone and side chain resonance assignments of the C-terminal domain of human TGIF1. BIOMOLECULAR NMR ASSIGNMENTS 2019; 13:357-360. [PMID: 31388821 DOI: 10.1007/s12104-019-09905-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
TGIF1 is an essential regulator of cell differentiation in various biological processes, and is associated with holoprosencephaly and many cancers. The C-terminal domain of TGIF1 that was originally defined as repressive domain 2 can interact with a variety of proteins, such as transcription factor Smad2 and co-repressor Sin3A, to mediate the regulative roles of TGIF1 in diverse cell signaling pathways. However, the recognition mechanism of TGIF1 C-terminal domain for different interacting proteins remains unknown. Here, we report the nearly complete 1H, 13C, and 15N backbone and side chain resonance assignments of TGIF1 C-terminal domain (residues 256-375), laying a foundation for further research on the structure-function relationship of TGIF1.
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Affiliation(s)
- Cong Cai
- Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan, 430070, China
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Yao Nie
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiali Yue
- Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Jiang Zhu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China.
| | - Rui Hu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Maili Liu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Yunhuang Yang
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China
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Benzo(a)pyrene promotes migration, invasion and metastasis of lung adenocarcinoma cells by upregulating TGIF. Toxicol Lett 2018; 294:11-19. [DOI: 10.1016/j.toxlet.2018.05.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/26/2018] [Accepted: 05/07/2018] [Indexed: 01/17/2023]
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10
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Li S, Hu R, Yao H, Long D, Luo F, Zhou X, Zhang X, Liu M, Zhu J, Yang Y. Characterization of the interaction interface and conformational dynamics of human TGIF1 homeodomain upon the binding of consensus DNA. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2018; 1866:1021-1028. [PMID: 30048701 DOI: 10.1016/j.bbapap.2018.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/28/2018] [Accepted: 07/17/2018] [Indexed: 01/17/2023]
Abstract
The TG interacting factor-1 homeodomain (TGIF1-HD) binds with the consensus DNA motif 5'-TGTCA-3' in gene promoters through its three-amino acid loop extension (TALE) type homeodomain, and then recruits co-regulators to regulate gene expression. Although the solution NMR structure of human TGIF1-HD has been reported previously, little is known about its DNA binding mechanism. NMR titrations have been extensively used to study mechanisms of ligand binding to target proteins; however, an intermediate exchange occurred predominantly between TGIF1-HD in the free and bound states when titrated with the consensus DNA, which resulted in poor-quality NMR spectra and precluded further exploration of its interaction interface and conformational dynamics. Here, the helix α3 of TGIF1-HD was speculated as the specific DNA binding interface by hydrogen-deuterium exchange mass spectrometry (HDX-MS) experiments, and subsequently confirmed by chemical exchange saturation transfer (CEST) spectroscopy. In addition, simultaneous conformational changes in other regions, including α1 and α2, were induced by DNA binding, explaining the observation of chemical shift perturbations from extensive residues besides those located in α3. Further, low-populated DNA-bound TGIF1-HD undergoing a slow exchange at a rate of 130.2 ± 3.6 s-1 was derived from the analysis of the CEST data, and two residues, R220 and R221, located in the middle of α3 were identified to be crucial for DNA binding. Our study provides structural and dynamic insights into the mechanisms of TGIF1-HD recognition of extensive promoter DNA.
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Affiliation(s)
- Shuangli Li
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of sciences, Wuhan 430071, China; Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Hu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of sciences, Wuhan 430071, China
| | - Haijie Yao
- School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Dong Long
- School of Life Sciences, University of Science and Technology of China, Hefei 230027, China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
| | - Fan Luo
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of sciences, Wuhan 430071, China
| | - Xin Zhou
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of sciences, Wuhan 430071, China
| | - Xu Zhang
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of sciences, Wuhan 430071, China
| | - Maili Liu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of sciences, Wuhan 430071, China
| | - Jiang Zhu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of sciences, Wuhan 430071, China.
| | - Yunhuang Yang
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of sciences, Wuhan 430071, China.
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11
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Zhu J, Li S, Ramelot TA, Kennedy MA, Liu M, Yang Y. Structural insights into the impact of two holoprosencephaly-related mutations on human TGIF1 homeodomain. Biochem Biophys Res Commun 2018; 496:575-581. [PMID: 29355528 DOI: 10.1016/j.bbrc.2018.01.099] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 01/15/2018] [Indexed: 01/17/2023]
Abstract
Human protein TGIF1 is an essential regulator of cell fate with broad roles in different tissues, and has been implicated in holoprosencephaly (HPE) and many cancers. The function of TGIF1 in transcriptional regulation depends on its three-amino acid loop extension (TALE) type of homeodomain (HD). Two missense mutations that led to P192A and R219C substitutions in TGIF1-HD were previously found in HPE patients and suggested to be the causes for these cases. However, how these mutations affected TGIF1 function has not been investigated from a structural view. Here, we investigated the roles of P192 and R219 in TGIF1-HD structure packing through determining the NMR structure of TGIF1-HD. Surprisingly, P192 and R219 were found to play roles in packing α1 and α2 to α3 together with A190 and F215 through side-chain interactions. Circular dichroism (CD) showed that P192A and R219C mutants displayed structural change and less folding compared with wild-type TGIF1-HD, and 1H-15N HSQC spectrum of P192A mutant exhibited chemical shift perturbations in all three helices of TGIF1-HD. Thus, it is suggested that P192A and R219C mutations led to structure disturbances of TGIF1-HD, which subsequently reduced the DNA-binding affinity of TGIF1-HD by 23-fold and 10-fold respectively, as revealed by the isothermal titration calorimetry (ITC) experiments. Our study provides structural insights of the probable pathogenesis mechanism of two TGIF1-related HPE cases, and evidences for the roles of P192 and R219 in HD folding.
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Affiliation(s)
- Jiang Zhu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - Shuangli Li
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Theresa A Ramelot
- Department of Chemistry and Biochemistry, and the Northeast Structural Genomics Consortium, Miami University, Oxford, OH, 45056, United States
| | - Michael A Kennedy
- Department of Chemistry and Biochemistry, and the Northeast Structural Genomics Consortium, Miami University, Oxford, OH, 45056, United States
| | - Maili Liu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China.
| | - Yunhuang Yang
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China.
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12
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Pan T, Mao T, Yang H, Wang H, Wang Y. Silencing of TGIF sensitizes MDA-MB-231 human breast cancer cells to cisplatin-induced apoptosis. Exp Ther Med 2018; 15:2978-2984. [PMID: 29456703 PMCID: PMC5795508 DOI: 10.3892/etm.2018.5780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 01/16/2018] [Indexed: 12/20/2022] Open
Abstract
The present study was designed to explore the sensitivity of MDA-MB-231 cells to cisplatin after silencing the expression of TG-interacting factor (TGIF) protein. Cell viability was measured using an MTT assay. Cell apoptosis was detected by the annexin V and dead cell assay and the Hoechst staining assay. Protein expression was analyzed using western blot analysis. A colony formation assay was also performed. It was observed that cisplatin reduced the expression of TGIF protein in a dose- and time-dependent manner. Silencing TGIF significantly suppressed the cell proliferation and colony formation in MDA-MB-231 cells with the treatment of cisplatin. Results indicated that silencing TGIF could dramatically increase the cisplatin-induced apoptosis rate in MDA-MB-231 cells. The expression of PARP and caspase-3 proteins was correlated with the effect that silencing TGIF enhanced cisplatin sensitivity in MDA-MB-231 cells. The present data showed that silencing TGIF promoted apoptotic sensitivity that was induced by cisplatin in MDA-MB-231 human breast cancer cells and suggested that TGIF might be a therapeutic target for improving the chemotherapy response in triple-negative breast cancer.
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Affiliation(s)
- Teng Pan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Tingting Mao
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Haiyu Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
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13
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Kwon YJ, Leibovitch BA, Bansal N, Pereira L, Chung CY, Ariztia EV, Zelent A, Farias EF, Waxman S. Targeted interference of SIN3A-TGIF1 function by SID decoy treatment inhibits Wnt signaling and invasion in triple negative breast cancer cells. Oncotarget 2017; 8:88421-88436. [PMID: 29179446 PMCID: PMC5687616 DOI: 10.18632/oncotarget.11381] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 07/23/2016] [Indexed: 12/21/2022] Open
Abstract
Cancer cell invasion is an obligatory step for metastatic dissemination that contributes to rapid relapse and a poorer survival in triple negative breast cancer (TNBC) patients. Development of novel therapeutic strategies to block tumor invasion is an unmet need in the treatment of cancer. We reported that the selective inhibition of the PAH2 domain of SIN3A protein function markedly suppressed metastatic dissemination to the lungs in TNBC xenograft bearing mice. Here, we show that TNBC cell lines treated with Sin3 interaction domain (SID) decoy peptides that bind to PAH2 display a strong in vitro inhibition of transwell invasion. This is accompanied by actin cytoskeleton reorganization with increased cortical actin deposition and downregulation of known Wnt target genes that are associated with epithelial to mesenchymal transition (EMT) and cancer cell invasion. Wnt pathway inhibition by SID decoy peptide was confirmed by decreased Wnt reporter activity and altered cytoplasmic localization of nuclear β-catenin. TGIF1, a transcription factor that modulates Wnt signaling and known to interact with the PAH2 domain of SIN3A, can be dissociated from the SIN3A complex by SID decoys. TGIF1 knockdown inhibits WNT target genes and in vitro cell invasion suggesting that TGIF1 might be a key target of the SID decoys to block tumor invasion. Taken together, targeting SIN3 function using SID decoys is a novel strategy to reverse invasion and the EMT program in TNBC translating into the inhibition of metastasis dissemination and eradication of residual disease.
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Affiliation(s)
- Yeon-Jin Kwon
- Icahn School of Medicine at Mount Sinai, The Tisch Cancer Institute, New York, NY, USA
| | - Boris A. Leibovitch
- Icahn School of Medicine at Mount Sinai, The Tisch Cancer Institute, New York, NY, USA
| | - Nidhi Bansal
- Icahn School of Medicine at Mount Sinai, The Tisch Cancer Institute, New York, NY, USA
| | - Lutecia Pereira
- University of Miami, Sylvester Comprehensive Cancer Center, Florida MI, USA
| | - Chi-Yeh Chung
- Icahn School of Medicine at Mount Sinai, The Tisch Cancer Institute, New York, NY, USA
| | - Edgardo V. Ariztia
- Icahn School of Medicine at Mount Sinai, The Tisch Cancer Institute, New York, NY, USA
| | - Arthur Zelent
- University of Miami, Sylvester Comprehensive Cancer Center, Florida MI, USA
| | - Eduardo F. Farias
- Icahn School of Medicine at Mount Sinai, The Tisch Cancer Institute, New York, NY, USA
| | - Samuel Waxman
- Icahn School of Medicine at Mount Sinai, The Tisch Cancer Institute, New York, NY, USA
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14
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Wang Y, Pan T, Li L, Wang H, Li J, Zhang D, Yang H. Knockdown of TGIF attenuates the proliferation and tumorigenicity of EC109 cells and promotes cisplatin-induced apoptosis. Oncol Lett 2017; 14:6519-6524. [PMID: 29344116 PMCID: PMC5754828 DOI: 10.3892/ol.2017.7009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/07/2017] [Indexed: 12/23/2022] Open
Abstract
A previous study has reported that frequent amplifications of the TG-interacting factor (TGIF) were observed in esophageal squamous cell carcinoma. The aim of the present study was to investigate the potential role of TGIF in the proliferation and tumorigenicity of the esophageal cancer cell line EC109 and cisplatin-induced apoptosis. Stable TGIF-knockdown EC109 cell line was established by infecting short hairpin RNA (shRNA) lentiviral particles. Soft agar and tumor xenograft assays were applied in nude mice. Flow cytometry was employed to evaluate the cell cycle and apoptosis. Western blot analysis was used to detect the expression of proteins. TGIF knockdown suppressed EC109 cell proliferation, colony formation in soft agar and tumor growth in nude mice, induced cell cycle arrest in the G1 phase, and promoted cisplatin-induced apoptosis. In addition, TGIF knockdown significantly reduced the expression of phospho-Rb in EC109 cells. The reduced level of full length PARP expression and the increased level of cleaved caspase-3 expression were observed in EC109 cells with the treatment of cisplatin and TGIF knockdown. The results suggest that knockdown of TGIF attenuated the proliferation and tumorigenicity of EC109 cells, and promoted cisplatin-induced apoptosis.
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Affiliation(s)
- Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Teng Pan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Li Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Haiyu Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Jiangmin Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Ding Zhang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
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15
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Wang Y, Pan T, Wang H, Li L, Li J, Zhang C, Yang H. Silencing of TGIF attenuates the tumorigenicity of A549 cells in vitro and in vivo. Tumour Biol 2016; 37:12725-12730. [PMID: 27448304 DOI: 10.1007/s13277-016-5222-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 07/14/2016] [Indexed: 12/29/2022] Open
Abstract
The aim of this study was to investigate the effects of the silencing of the TG-interacting factor (TGIF) on the tumorigenicity of A549 cells in vitro and in vivo. Stable TGIF-silenced A549 cells were established by infecting shRNA lentiviral particles. Western blotting analysis was used to detect the expression of proteins. Cell cycle was detected by flow cytometry. Soft agar assay and tumor formation assay in nude mice were applied. The silencing of TGIF inhibited A549 cell proliferation, colony formation in vitro, growth of tumor xenograft in vivo, and arrested the cell cycle in the G1 phase. The expression of CDK4, cyclin D1, and phospho-Rb was markedly decreased in the A549-shTGIF cells compared with the A549-shcon cells, and p21 was markedly increased in the A549-shTGIF cells compared with the A549-shcon cells. A lower level of β-Catenin protein expression was observed in the A549-shTGIF cells than that in the A549-shcon cells. The silencing of TGIF attenuates the tumorigenicity of A549 cells in vitro and in vivo.
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Affiliation(s)
- Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, No. 105 of South Nongye Road, Zhengzhou, 450016, China.
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003, China.
| | - Teng Pan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Haiyu Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, No. 105 of South Nongye Road, Zhengzhou, 450016, China
| | - Li Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, No. 105 of South Nongye Road, Zhengzhou, 450016, China
| | - Jiangmin Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, No. 105 of South Nongye Road, Zhengzhou, 450016, China
| | - Congke Zhang
- Department of Toxicology, Henan Center for Disease Control and Prevention, No. 105 of South Nongye Road, Zhengzhou, 450016, China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, 450001, China
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16
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17
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Yeh BW, Li WM, Li CC, Kang WY, Huang CN, Hour TC, Liu ZM, Wu WJ, Huang HS. Histone deacetylase inhibitor trichostatin A resensitizes gemcitabine resistant urothelial carcinoma cells via suppression of TG-interacting factor. Toxicol Appl Pharmacol 2015; 290:98-106. [PMID: 26589485 DOI: 10.1016/j.taap.2015.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Revised: 10/29/2015] [Accepted: 11/13/2015] [Indexed: 12/27/2022]
Abstract
Gemcitabine and cisplatin (GC) has been widely used for advanced and metastatic urothelial carcinoma (UC). However, resistance to this remedy has been noticed. We have demonstrated that increase of TG-interacting factor (TGIF) in specimens is associated with worse prognosis of upper tract UC (UTUC) patients. The roles of TGIF in the gemcitabine resistance of UC were explored. Specimens of 23 locally advanced/advanced stage UTUC patients who received GC systemic chemotherapy after radical nephroureterectomy were collected to evaluate the alterations of TGIF in the resistance to the remedy by using immunohistochemistry. In vitro characterizations of mechanisms mediating TGIF in gemcitabine resistance were conducted by analyzing NTUB1 cells and their gemcitabine-resistant subline, NGR cells. Our results show that increased TGIF is significantly associated with chemo-resistance, poor progression-free survival, and higher cancer-related deaths of UTUC patients. Higher increases of TGIF, p-AKT(Ser473) and invasive ability were demonstrated in NGR cells. Overexpression of TGIF in NTUB1 cells upregulated p-AKT(Ser473) activation, enhanced migration ability, and attenuated cellular sensitivity to gemcitabine. Knockdown of TGIF in NGR cells downregulated p-AKT(Ser473) activation, declined migration ability, and enhanced cellular sensitivity to gemcitabine. In addition, histone deacetylases inhibitor trichostatin A (TSA) inhibited TGIF, p-AKT(Ser473) expression and migration ability. Synergistic effects of gemcitabine and TSA on NGR cells were also demonstrated. Collectively, TGIF contributes to the gemcitabine resistance of UC via AKT activation. Combined treatment with gemcitabine and TSA might be a promising therapeutic remedy to improve the gemcitabine resistance of UC.
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Affiliation(s)
- Bi-Wen Yeh
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wei-Ming Li
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ching-Chia Li
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wan-Yi Kang
- Department of Pathology, Kuo General Hospital, Tainan 701, Taiwan
| | - Chun-Nung Huang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tzyh-Chyuan Hour
- Institute of Biochemistry, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Zi-Miao Liu
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Wen-Jeng Wu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Huei-Sheng Huang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
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18
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Razzaque MS, Atfi A. TGIF function in oncogenic Wnt signaling. Biochim Biophys Acta Rev Cancer 2015; 1865:101-4. [PMID: 26522669 DOI: 10.1016/j.bbcan.2015.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 10/26/2015] [Accepted: 10/28/2015] [Indexed: 01/17/2023]
Abstract
Transforming growth-interacting factor (TGIF) has been implicated in the pathogenesis of many types of human cancer, but the underlying mechanisms remained mostly enigmatic. Our recent study has revealed that TGIF functions as a mediator of oncogenic Wnt/β-catenin signaling. We found that TGIF can interact with and sequesters Axin1 and Axin2 into the nucleus, thereby culminating in disassembly of the β-catenin-destruction complex and attendant accumulation of β-catenin in the nucleus, where it activates expression of Wnt target genes, including TGIF itself. We have provided proof-of-concept evidences that high levels of TGIF expression correlate with poor prognosis in patients with triple negative breast cancer (TNBC), and that TGIF empowers Wnt-driven mammary tumorigenesis in vivo. Here, we will briefly summarize how TGIF influences Wnt signaling to promote tumorigenesis.
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Affiliation(s)
- Mohammed S Razzaque
- Department of Applied Oral Sciences, The Forsyth Institute, Harvard School of Dental Medicine Affiliate, 245 First Street, Cambridge, MA 02142, USA; Department of Pathology, Saba University School of Medicine, Church Street, Saba, Dutch Caribbean.
| | - Azeddine Atfi
- Cancer Institute and Department of Biochemistry, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA; INSERM UMRS 938, Laboratory of Cell Signaling and Carcinogenesis, Hôpital Saint-Antoine, 34 rue Crozatier, 75012 Paris, France
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19
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Liu ZM, Tseng HY, Tsai HW, Su FC, Huang HS. Transforming growth factor β-interacting factor-induced malignant progression of hepatocellular carcinoma cells depends on superoxide production from Nox4. Free Radic Biol Med 2015; 84:54-64. [PMID: 25841779 DOI: 10.1016/j.freeradbiomed.2015.03.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 03/09/2015] [Accepted: 03/25/2015] [Indexed: 01/01/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the most deadly malignancies worldwide because of its high recurrence rate, high metastatic potential, and resistance to drugs. Elucidation of the mechanisms underlying malignancy in HCC is needed to improve diagnosis, therapy, and prognosis. Previously, we showed that transforming growth factor β-interacting factor (TGIF) antagonizes arsenic trioxide-induced apoptosis of HepG2 cells and is associated with poor prognosis and progression of urothelial carcinoma in patients after radical nephroureterectomy. To determine whether TGIF plays a role in HCC tumorigenesis, we compared the expression of TGIF, its downstream targets, and reactive oxygen species levels between HCC HepG2 cells and the more invasive SK-Hep1 cells. Superoxide production, phosphorylation of c-Src(Y416) and AKT(S473), and expression of TGIF and NADPH oxidase (Nox) were higher in invasive SK-Hep1 cells than in HepG2 cells. TGIF-overexpressing HepG2 xenograft tumors markedly promoted tumor growth and metastasis to the lungs. Overexpression of TGIF in HepG2 cells increased superoxide production from Nox4, matrix metalloproteinase expression, invadopodia formation, and cellular migration/invasion ability. Conversely, knockdown of TGIF in SK-Hep1 cells attenuated these processes. Using gene knockdown and pharmacological inhibitors, we demonstrate that c-Src/AKT is the upstream signaling that regulates TGIF-induced Nox4 activation and subsequent superoxide production. Taken together, our results implicate TGIF as a potential biomarker for prognosis and target for clinical therapy in patients with advanced HCC.
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Affiliation(s)
- Zi-Miao Liu
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Hong-Yu Tseng
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Hung-Wen Tsai
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Fang-Cheng Su
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Huei-Sheng Huang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
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20
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TGIF1 promoted the growth and migration of cancer cells in nonsmall cell lung cancer. Tumour Biol 2015; 36:9303-10. [PMID: 26104768 DOI: 10.1007/s13277-015-3676-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 06/15/2015] [Indexed: 01/17/2023] Open
Abstract
Transforming growth factor beta-inducing factor 1 (TGIF1) was reported to be dysregulated in several types of cancer. However, its expression pattern and functions in nonsmall cell lung cancer (NSCLC) remained unknown. In the present study, the expression of TGIF1 was found to be elevated in the clinical NSCLC tissues. TGIF1 promoted the growth and migration of NSCLC cells, while knocking down the expression of TGIF1 inhibited the growth and migration of NSCLC cells. Moreover, downregulation of TGIF1 impaired the metastasis of NSCLC cells. In the study for the molecular mechanisms, it was found that TGIF1 positively regulated beta-catenin/TCF signaling. In summary, our study demonstrated the oncogenic role of TGIF1 in NSCLC, and TGIF1 might be a therapeutic target for NSCLC.
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Wang Y, Wang H, Gao H, Xu B, Zhai W, Li J, Zhang C. Elevated expression of TGIF is involved in lung carcinogenesis. Tumour Biol 2015; 36:9223-31. [PMID: 26091794 DOI: 10.1007/s13277-015-3615-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 05/26/2015] [Indexed: 02/06/2023] Open
Abstract
The purpose of this study was to explore the expression of TG-interacting factor (TGIF) in lung carcinogenesis. Malignant transformation of human bronchial epithelial (16HBE) cell was established by benzo(a)pyrene (BaP) treatment. Soft agar assay and tumor formation assay in nude mice were applied. Tumorigenesis experiment in vivo was done by BaP treatment. Western blotting, immunohistochemistry, and quantitative polymerase chain reaction were used to detect TGIF expression. We observed a higher level of TGIF messenger RNA (mRNA) in lung cancer tissues than that in paracancerous tissues. We observed significantly higher levels of TGIF mRNA and protein in A549 and H1299 cell lines than that in 16HBE cell. Increased expressions of TGIF protein and mRNA were observed in 16HBE cells induced by BaP treatment as compared to those in solvent control group. We observed significantly higher levels of TGIF mRNA and protein in 16HBE-BaP cells than that in 16HBE-control cells. We observed significantly higher levels of TGIF mRNA and protein in mice lung tissues treated with BaP than that in control group. Our results suggested that elevated expression of TGIF was involved in lung carcinogenesis.
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Affiliation(s)
- Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, 450016, China.
| | - Haiyu Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, 450016, China
| | - Huiyan Gao
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, 450016, China
| | - Bing Xu
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, 450016, China
| | - Wenlong Zhai
- Department of General Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jiangmin Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, 450016, China
| | - Congke Zhang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, 450016, China
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22
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Brunner SM, Weber F, Werner JM, Agha A, Farkas SA, Schlitt HJ, Hornung M. Neuroendocrine tumors of the pancreas: a retrospective single-center analysis using the ENETS TNM-classification and immunohistochemical markers for risk stratification. BMC Surg 2015; 15:49. [PMID: 25928025 PMCID: PMC4451725 DOI: 10.1186/s12893-015-0033-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 04/20/2015] [Indexed: 02/06/2023] Open
Abstract
Background This study was performed to assess the 2006 introduced ENETS TNM-classification with respect to patient survival and surgical approach for patients who underwent surgery for a neuroendocrine tumor of the pancreas (PNET). Methods Between 2001 and 2010 38 patients after resection of a PNET were investigated regarding tumor localization and size. Further, patient survival with regards to the new TNM-classification, the operation methods and immunohistochemical markers was analyzed. Results The estimated mean survival time of the 38 patients was 91 ± 10 months (female 116 ± 9, male 56 ± 14 months; p = 0.008). The 5-year survival rate was 63.9%. Patient survival differed significantly depending on tumor size (pT1 107 ± 13, pT2 94 ± 16, pT3 44 ± 7 and pT4 18 ± 14 months; P = 0.006). Patients without lymph node metastasis survived significantly longer compared to patients with positive lymph node status (108 ± 9 vs. 19 ± 5 months; P < 0.001). However, survival in patients with and without distant metastasis did not differ significantly (92 ± 11 vs. 80 ± 23 months; P = 0.876). Further, the tumor grading significantly influenced patient survival (G1 111 ± 12, G2 68 ± 12 and G3 21 ± 14 months; P = 0.037). Conclusions As part of the TNM-classification especially lymph node status and also tumor size and grading were identified as important factors determining patient survival. Further, gender was demonstrated to significantly influence survival time. If an R0 resection was achieved in patients with distant metastases patient survival was comparable to patients without metastasis. Electronic supplementary material The online version of this article (doi:10.1186/s12893-015-0033-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Stefan M Brunner
- Department of Surgery, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany.
| | - Florian Weber
- Institute of Pathology, University Medical Center Regensburg, Regensburg, Germany
| | - Jens M Werner
- Department of Surgery, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Ayman Agha
- Department of Surgery, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Stefan A Farkas
- Department of Surgery, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Hans J Schlitt
- Department of Surgery, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Matthias Hornung
- Department of Surgery, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
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23
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Li J, Chen L, Sun L, Chen H, Sun Y, Jiang C, Cheng B. Silencing of TGIF1 in bone mesenchymal stem cells applied to the post-operative rotator cuff improves both functional and histologic outcomes. J Mol Histol 2015; 46:241-9. [PMID: 25782868 DOI: 10.1007/s10735-015-9615-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 03/13/2015] [Indexed: 02/08/2023]
Abstract
Stem cells have long been hypothesized to improve outcomes following rotator cuff repair. However, these cells must be signaled in order to do so. TGIF1 is a transcription factor that has been found to be down-regulated in cells involved in chondrogenesis. We therefore wished to examine whether stem cells expressing lower levels of TGIF1 could better improve outcomes following rotator cuff repair than stem cells expressing normal levels of TGIF1. Bone mesenchymal stem cells (BMSCs) were transduced with TGIF1 siRNA to suppress native TGIF1. Nontransduced BMSCs were also obtained for the control group. Following suprapinatus tendon repair, rats were either treated with transduced BMSCs or nontransduced BMSCs. Histologic and functional testing were performed on both groups. Rats treated with transduced TGIF1 siRNA BMSCs following suprapinatus repair expressed significantly higher levels of chondrogenic proteins at 4 weeks than rats treated with nontransduced BMSCs. Further, rats treated with BMSCs transduced with TGIF1 siRNA had both a significantly greater maximum load at failure and stiffness. Rats treated with transduced TGIF1 siRNA BMSCs following supraspinatus repair perform better both histologically and functionally at 4 weeks.
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Affiliation(s)
- Jie Li
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University, No. 301, Yanchang Road, Shanghai, 200072, People's Republic of China
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Liu ZM, Tseng HY, Cheng YL, Yeh BW, Wu WJ, Huang HS. TG-interacting factor transcriptionally induced by AKT/FOXO3A is a negative regulator that antagonizes arsenic trioxide-induced cancer cell apoptosis. Toxicol Appl Pharmacol 2015; 285:41-50. [PMID: 25791921 DOI: 10.1016/j.taap.2015.03.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 03/05/2015] [Accepted: 03/06/2015] [Indexed: 12/13/2022]
Abstract
Arsenic trioxide (ATO) is a multi-target drug approved by the Food and Drug Administration as the first-line chemotherapeutic agent for the treatment of acute promyelocytic leukemia. In addition, several clinical trials are being conducted with arsenic-based drugs for the treatment of other hematological malignancies and solid tumors. However, ATO's modest clinical efficacy on some cancers, and potential toxic effects on humans have been reported. Determining how best to reduce these adverse effects while increasing its therapeutic efficacy is obviously a critical issue. Previously, we demonstrated that the JNK-induced complex formation of phosphorylated c-Jun and TG-interacting factor (TGIF) antagonizes ERK-induced cyclin-dependent kinase inhibitor CDKN1A (p21(WAF1/CIP1)) expression and resultant apoptosis in response to ATO in A431 cells. Surprisingly, at low-concentrations (0.1-0.2 μM), ATO increased cellular proliferation, migration and invasion, involving TGIF expression, however, at high-concentrations (5-20 μM), ATO induced cell apoptosis. Using a promoter analysis, TGIF was transcriptionally regulated by ATO at the FOXO3A binding site (-1486 to -1479bp) via the c-Src/EGFR/AKT pathway. Stable overexpression of TGIF promoted advancing the cell cycle into the S phase, and attenuated 20 μM ATO-induced apoptosis. Furthermore, blockage of the AKT pathway enhanced ATO-induced CDKN1A expression and resultant apoptosis in cancer cells, but overexpression of AKT1 inhibited CDKN1A expression. Therefore, we suggest that TGIF is transcriptionally regulated by the c-Src/EGFR/AKT pathway, which plays a role as a negative regulator in antagonizing ATO-induced CDKN1A expression and resultant apoptosis. Suppression of these antagonistic effects might be a promising therapeutic strategy toward improving clinical efficacy of ATO.
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Affiliation(s)
- Zi-Miao Liu
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Hong-Yu Tseng
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Ya-Ling Cheng
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Bi-Wen Yeh
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Jeng Wu
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Huei-Sheng Huang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
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25
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TG-interacting factor mediates arsenic-induced malignant transformation of keratinocytes via c-Src/EGFR/AKT/FOXO3A and redox signalings. Arch Toxicol 2014; 89:2229-41. [DOI: 10.1007/s00204-014-1445-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 12/17/2014] [Indexed: 12/13/2022]
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26
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Wang YW, Li WM, Wu WJ, Chai CY, Liu HS, Lai MD, Chow NH. Potential significance of EMP3 in patients with upper urinary tract urothelial carcinoma: crosstalk with ErbB2-PI3K-Akt pathway. J Urol 2013; 192:242-51. [PMID: 24333112 DOI: 10.1016/j.juro.2013.12.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2013] [Indexed: 02/06/2023]
Abstract
PURPOSE Upper urinary tract (pyelocalyceal cavities and ureter) urothelial carcinoma is a relatively rare neoplastic disease. Although diagnosis and treatment of this tumor variant have improved significantly, accurate risk stratification remains a challenge. To identify the putative oncogene involved in urothelial carcinoma progression we performed bioinformatics guided experimental investigation targeting chromosome 19q13. MATERIALS AND METHODS We investigated the effects of EMP3 on cancer cell growth, migration and adhesion in transfection and siRNA experiments in vitro. Crosstalk of integrins or ErbB2 with EMP3 was examined by reverse transcriptase-polymerase chain reaction and immunoblot. The potential involvement of epigenetic alterations of EMP3 in vitro and in vivo was analyzed by methylation specific polymerase chain reaction. To validate clinical relevance we measured EMP3 expression at the mRNA and protein levels in a cohort of 77 patients with upper urinary tract urothelial carcinoma and compared prognostic significance in relation to that of ErbB2 expression. RESULTS We noted functional crosstalk between ErbB2 and EMP3 in vitro. EMP3 over expression promoted cancer cell proliferation and migration but suppressed cell adhesion in vitro. EMP3 activated the ErbB2-PI3K-AKT pathway to increase cell growth in vitro. In the clinical cohort Kaplan-Meier survival estimates showed that ErbB2 and EMP3 co-expression was the most important indicator of progression-free and metastasis-free survival in patients with upper urinary tract urothelial carcinoma (log rank test p = 0.018 and 0.04, respectively). CONCLUSIONS EMP3 is an important prognostic indicator for selecting patients with upper urinary tract urothelial carcinoma for more intensive therapy. EMP3 is an innovative co-targeting candidate for designing ErbB2 based cancer therapy.
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Affiliation(s)
- Yi-Wen Wang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Wei-Ming Li
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, Republic of China
| | - Wen-Jeng Wu
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, Republic of China; Department of Urology, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan, Republic of China; Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, Republic of China
| | - Chee-Yin Chai
- Department of Pathology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, Republic of China
| | - Hsiao-Sheng Liu
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China; Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Ming-Derg Lai
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China; Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Nan-Haw Chow
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China; Department of Pathology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China.
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Lenkowski JR, Qin Z, Sifuentes CJ, Thummel R, Soto CM, Moens CB, Raymond PA. Retinal regeneration in adult zebrafish requires regulation of TGFβ signaling. Glia 2013; 61:1687-97. [PMID: 23918319 PMCID: PMC4127981 DOI: 10.1002/glia.22549] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 06/13/2013] [Accepted: 06/19/2013] [Indexed: 12/16/2022]
Abstract
Müller glia are the resident radial glia in the vertebrate retina. The response of mammalian Müller glia to retinal damage often results in a glial scar and no functional replacement of lost neurons. Adult zebrafish Müller glia, in contrast, are considered tissue-specific stem cells that can self-renew and generate neurogenic progenitors to regenerate all retinal neurons after damage. Here, we demonstrate that regulation of TGFβ signaling by the corepressors Tgif1 and Six3b is critical for the proliferative response to photoreceptor destruction in the adult zebrafish retina. When function of these corepressors is disrupted, Müller glia and their progeny proliferate less, leading to a significant reduction in photoreceptor regeneration. Tgif1 expression and regulation of TGFβ signaling are implicated in the function of several types of stem cells, but this is the first demonstration that this regulatory network is necessary for regeneration of neurons.
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Affiliation(s)
- Jenny R Lenkowski
- Molecular, Cellular, and Developmental Biology, University of Michigan, 830 N University, Ann Arbor, Michigan, USA.
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28
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Wang YW, Li WM, Wu WJ, Chai CY, Chang TY, Sun Y, Cheng CJ, Shiue YL, Su SJ, Cheng HL, Liu HS, Chow NH. Epithelial membrane protein 2 is a prognostic indictor for patients with urothelial carcinoma of the upper urinary tract. THE AMERICAN JOURNAL OF PATHOLOGY 2013; 183:709-19. [PMID: 23838430 DOI: 10.1016/j.ajpath.2013.05.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 05/20/2013] [Accepted: 05/28/2013] [Indexed: 12/12/2022]
Abstract
Upper urinary tract urothelial carcinoma is a relatively uncommon disease and is diagnosed more frequently at advanced stages. The prognosis of these patients mainly has been related to tumor stage and grade. As a result, the definition of prognostic indicators enabling precise patient selection is mandatory for neoadjuvant or adjuvant therapies. The epithelial membrane protein (EMP2) was identified as one of the up-regulated genes by isoflavones. EMP2 overexpression suppressed foci formation, anchorage-independent growth in vitro, and tumorigenicity in severe combined immunodeficiency mice (all P < 0.05). In addition, a cross-talk between EMP2 and integrins αV and β3 was shown in the regulation of cell adhesion and migration. Higher EMP2 expression was associated with a better progression-free survival (P = 0.008) and cancer-related death (P < 0.001). EMP2 was identified as a tumor-suppressor gene in urinary tract urothelial carcinoma and may be an innovative co-targeting candidate for designing integrin-based cancer therapy.
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Affiliation(s)
- Yi-Wen Wang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Huang HS, Liu ZM, Chen PC, Tseng HY, Yeh BW. TG-interacting factor-induced superoxide production from NADPH oxidase contributes to the migration/invasion of urothelial carcinoma. Free Radic Biol Med 2012; 53:769-78. [PMID: 22728270 DOI: 10.1016/j.freeradbiomed.2012.06.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 06/07/2012] [Accepted: 06/12/2012] [Indexed: 01/11/2023]
Abstract
Urothelial carcinoma (UC) of the bladder is the fourth most common cancer and the ninth leading cause of death from cancer among men in the United States. However, higher recurrence, resistance to therapy, and poor diagnostic/prognostic biomarkers of UC prompt us to identify novel targets to improve the clinical applications. TG-interacting factor (TGIF), a transcriptional corepressor to modulate the TGF-β signaling, is associated with various types of human cancer. In the present study, we found that cellular migration activity, reactive oxygen species production, AKT(S473) phosphorylation, TGIF, and p67(phox) expression were higher in invasive T24 cells than in noninvasive RT4 cells. In addition, overexpression of TGIF in RT4 cells enhanced cellular migration/invasion ability; it involved NADPH oxidase 2 (Nox2)/p67(phox) complex activation, reactive oxygen species production, and AKT(S473) phosphorylation. In contrast, the migration/invasion ability of T24 cells was suppressed by the knockdown of TGIF or p67(phox), respectively. Overexpression of AKT1 could increase cellular superoxide production and invasion. Moreover, by using the PI3K/AKT inhibitor wortmannin or shRNA of AKT1, the TGIF-induced Nox activation and superoxide production were significantly inhibited. Accordingly, we suggest that PI3K/AKT signaling mediates TGIF-induced Nox2/p67(phox) complex activation and the resultant superoxide production which reinforces the PI3K/AKT signaling to promote the cellular migration/invasion ability of UC.
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Affiliation(s)
- Huei-Sheng Huang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
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