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Żelazowska M, Pšenička M. Secondary growth ovarian follicles of the pigmented sterlet sturgeon Acipenser ruthenus L. 1758 (Acipenseriformes, Chondrostei, Actinopterygii, Osteichthyes) - Microscopic study of oocytes, egg envelope and diversification of follicular cells. Micron 2024; 186:103701. [PMID: 39128200 DOI: 10.1016/j.micron.2024.103701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/29/2024] [Accepted: 08/01/2024] [Indexed: 08/13/2024]
Abstract
The individual ovarian follicle of sturgeons (Acipenseriformes, Acipenseridae) contains an oocyte surrounded by follicular cells (FCs), basal lamina, and thecal cells. The late stages of the secondary growth of follicles (mid- and advanced vitellogenic) are not fully explained in Acipenseriformes. To explore and discuss the ultrastructure of oocytes, FCs, an egg envelope, and explain how micropylar cells differentiate and the canals of a multiple micropyle are formed, the samples of ovaries of the mature sterlet sturgeon Acipenser ruthenus were examined. The oocytes are polarized, the nucleus is located in the animal hemisphere, contains lampbrush chromosomes and multiple nucleoli. In the ooplasm three regions are present: a perinuclear (contains the mitochondria), an endoplasm (contains the lipid droplets and yolk platelets), and a periplasm (contains the cortical granules, melanosomes, endocytotic and exocytotic vesicles). The melanosomes in animal hemisphere form two concentric rings separated by a lighter region between them. The FCs are differentiated into bright and dark cells that are both translationally and secretory active. Diversification of FCs involves repeated and cytoskeleton-dependent change of shape. In the advanced follicles the FCs are diversified into micropylar, the animal and vegetal regions cells, and the cells that delaminated from the epithelium in the animal region. The egg envelope is present in the perioocytic space and consists of three layers: (1) an inner layer or vitelline envelope, (2) a middle layer, and (3) an outer layer. The inner layer consists of four sublayers: (a) a filamentous sublayer composed of filaments released from the oocytes, (b) a trabecular 1 sublayer and (c) a trabecular 2 sublayer named due to the sequence of the deposition, and composed of filaments, fibres and trabecules, (d) a homogeneous sublayer located between the trabecular 1 and trabecular 2 sublayers composed of filaments that adhere to each other closely. The middle layer contains two sublayers: a porous 1 and a porous 2 (composed of granular material) which are released by the oocyte and FCs. The outer layer consists of fibrillar material released by the FCs. The egg envelope is pierced by radial canals formed around the microvilli of the oocyte and the microvilli-like processes of FCs. A micropylar field in the egg envelope that covers the animal pole of the oocyte contains 1 - 4 micropylar canals. Micropylar cells are involved in their formation. The shape of these cells is icicle-like and the cytoplasm is differentiated into two regions (a basal and apical bearing a projection) equipped with different sets of organelles.
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Affiliation(s)
- Monika Żelazowska
- Department of Developmental Biology and Invertebrate Morphology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Kraków, Poland.
| | - Martin Pšenička
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Vodňany, Czechia
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Roy ME, Veilleux C, Paquin A, Gagnon A, Annabi B. Transcriptional regulation of CYR61 and CTGF by LM98: a synthetic YAP-TEAD inhibitor that targets in-vitro vasculogenic mimicry in glioblastoma cells. Anticancer Drugs 2024; 35:709-719. [PMID: 38900643 PMCID: PMC11305628 DOI: 10.1097/cad.0000000000001627] [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: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 06/22/2024]
Abstract
Glioblastoma (GBM) is a highly angiogenic malignancy of the central nervous system that resists standard antiangiogenic therapy, in part because of an alternative process to angiogenesis termed vasculogenic mimicry. Intricately linked to GBM, dysregulation of the Hippo signaling pathway leads to overexpression of YAP/TEAD and several downstream effectors involved in therapy resistance. Little is known about whether vasculogenic mimicry and the Hippo pathway intersect in the GBM chemoresistance phenotype. This study seeks to investigate the expression patterns of Hippo pathway regulators within clinically annotated GBM samples, examining their involvement in vitro regarding vasculogenic mimicry. In addition, it aims to assess the potential for pharmacological targeting of this pathway. In-silico analysis of the Hippo signaling members YAP1 , TEAD1 , AXL , NF2 , CTGF , and CYR61 transcript levels in low-grade GBM and GBM tumor tissues was done by Gene Expression Profiling Interactive Analysis. Gene expression was analyzed by real-time quantitative PCR from human U87, U118, U138, and U251 brain cancer cell lines and in clinically annotated brain tumor cDNA arrays. Transient gene silencing was performed with specific small interfering RNA. Vasculogenic mimicry was assessed using a Cultrex matrix, and three-dimensional capillary-like structures were analyzed with Wimasis. CYR61 and CTGF transcript levels were elevated in GBM tissues and were further induced when in-vitro vasculogenic mimicry was assessed. Silencing of CYR61 and CTGF , or treatment with a small-molecule TEAD inhibitor LM98 derived from flufenamic acid, inhibited vasculogenic mimicry. Silencing of SNAI1 and FOXC2 also altered vasculogenic mimicry and reduced CYR61 / CTGF levels. Pharmacological targeting of the Hippo pathway inhibits in-vitro vasculogenic mimicry. Unraveling the connections between the Hippo pathway and vasculogenic mimicry may pave the way for innovative therapeutic strategies.
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Affiliation(s)
| | | | - Alexis Paquin
- Laboratoire de Chimie Organique et Médicinale, Département de Chimie, Université du Québec à Montréal, Montreal, Québec, Canada
| | - Alexandre Gagnon
- Laboratoire de Chimie Organique et Médicinale, Département de Chimie, Université du Québec à Montréal, Montreal, Québec, Canada
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Choi SH, Kim DY. Regulation of Tumor Microenvironment through YAP/TAZ under Tumor Hypoxia. Cancers (Basel) 2024; 16:3030. [PMID: 39272887 PMCID: PMC11394240 DOI: 10.3390/cancers16173030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 08/22/2024] [Accepted: 08/28/2024] [Indexed: 09/15/2024] Open
Abstract
In solid tumors such as hepatocellular carcinoma (HCC), hypoxia is one of the important mechanisms of cancer development that closely influences cancer development, survival, and metastasis. The development of treatments for cancer was temporarily revolutionized by immunotherapy but continues to be constrained by limited response rates and the resistance and high costs required for the development of new and innovative strategies. In particular, solid tumors, including HCC, a multi-vascular tumor type, are sensitive to hypoxia and generate many blood vessels for metastasis and development, making it difficult to treat HCC, not only with immunotherapy but also with drugs targeting blood vessels. Therefore, in order to develop a treatment strategy for hypoxic tumors, various mechanisms must be explored and analyzed to treat these impregnable solid tumors. To date, tumor growth mechanisms linked to hypoxia are known to be complex and coexist with various signal pathways, but recently, mechanisms related to the Hippo signal pathway are emerging. Interestingly, Hippo YAP/TAZ, which appear during early tumor and normal tumor growth, and YAP/TAZ, which appear during hypoxia, help tumor growth and proliferation in different directions. Peculiarly, YAP/TAZ, which have different phosphorylation directions in the hypoxic environment of tumors, are involved in cancer proliferation and metastasis in various carcinomas, including HCC. Analyzing the mechanisms that regulate the function and expression of YAP in addition to HIF in the complex hypoxic environment of tumors may lead to a variety of anti-cancer strategies and combining HIF and YAP/TAZ may develop the potential to change the landscape of cancer treatment.
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Affiliation(s)
- Sung Hoon Choi
- Institute of Health & Environment, Graduate School of Public Health, Seoul National University, Seoul 08826, Republic of Korea
- KoBioLabs Inc., Seoul 08826, Republic of Korea
| | - Do Young Kim
- Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
- Yonsei Liver Cancer Center, Yonsei Cancer Hospital, Seoul 03722, Republic of Korea
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Takahashi H, Ito R, Matsumura Y, Sakai J. Environmental factor reversibly determines cellular identity through opposing Integrators that unify epigenetic and transcriptional pathways. Bioessays 2024; 46:e2300084. [PMID: 38013256 DOI: 10.1002/bies.202300084] [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: 05/15/2023] [Revised: 09/29/2023] [Accepted: 11/13/2023] [Indexed: 11/29/2023]
Abstract
Organisms must adapt to environmental stresses to ensure their survival and prosperity. Different types of stresses, including thermal, mechanical, and hypoxic stresses, can alter the cellular state that accompanies changes in gene expression but not the cellular identity determined by a chromatin state that remains stable throughout life. Some tissues, such as adipose tissue, demonstrate remarkable plasticity and adaptability in response to environmental cues, enabling reversible cellular identity changes; however, the mechanisms underlying these changes are not well understood. We hypothesized that positive and/or negative "Integrators" sense environmental cues and coordinate the epigenetic and transcriptional pathways required for changes in cellular identity. Adverse environmental factors such as pollution disrupt the coordinated control contributing to disease development. Further research based on this hypothesis will reveal how organisms adapt to fluctuating environmental conditions, such as temperature, extracellular matrix stiffness, oxygen, cytokines, and hormonal cues by changing their cellular identities.
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Grants
- JP20gm1310007 Japan Agency for Medical Research and Development
- JP16H06390 Ministry of Education, Culture, Sports, Science and Technology
- JP21H04826 Ministry of Education, Culture, Sports, Science and Technology
- JP20H04835 Ministry of Education, Culture, Sports, Science and Technology
- JP20K21747 Ministry of Education, Culture, Sports, Science and Technology
- JP22K18411 Ministry of Education, Culture, Sports, Science and Technology
- JP21K21211 Ministry of Education, Culture, Sports, Science and Technology
- JP19J11909 Ministry of Education, Culture, Sports, Science and Technology
- JPMJPF2013 Japan Science and Technology Agency
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Affiliation(s)
- Hiroki Takahashi
- Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Ryo Ito
- Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoshihiro Matsumura
- Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Juro Sakai
- Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai, Japan
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
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Aljabal G, Teh AH, Yap BK. In Silico Prediction and Biophysical Validation of Novel 14-3-3σ Homodimer Stabilizers. J Chem Inf Model 2023; 63:5619-5630. [PMID: 37606921 DOI: 10.1021/acs.jcim.3c00791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
14-3-3σ plays an important role in controlling tumor metabolic reprogramming and cancer cell growth. However, its function is often compromised in many cancers due to its downregulation. Previous studies found that homodimerization of 14-3-3σ is critical for its activity. However, to date, it is not known if stabilization of 14-3-3σ homodimers can improve its activity or prevent its degradation. In our previous work, we have showed that GCP-Lys-OMe is a potential 14-3-3σ homodimer stabilizer. However, its stabilizing effect was not experimentally validated. Therefore, in this study, we have attempted to predict few potential peptides that can stabilize the dimeric form of 14-3-3σ using similar in silico techniques as described previously for GCP-Lys-OMe. Subsequent [1H]-CPMG NMR experiments confirmed the binding of the peptides (peptides 3, 5, 9, and 16) on 14-3-3σ, with peptide 3 showing the strongest binding. Competitive [1H]-CPMG assays further revealed that while peptide 3 does not compete with a 14-3-3σ binding peptide (ExoS) for the protein's amphipathic groove, it was found to improve ExoS binding on 14-3-3σ. When 14-3-3σ was subjected to dynamic light scattering experiments, the 14-3-3σ homodimer was found to undergo dissociation into monomers prior to aggregation. Intriguingly, the presence of peptide 3 increased 14-3-3σ stability against aggregation. Overall, our findings suggest that (1) docking accompanied by MD simulations can be used to identify potential homodimer stabilizing compounds of 14-3-3σ and (2) peptide 3 can slow down 14-3-3σ aggregation (presumably by preventing its dissociation into monomers), as well as improving the binding of 14-3-3σ to ExoS protein.
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Affiliation(s)
- Ghazi Aljabal
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor, Penang 11800, Malaysia
| | - Aik-Hong Teh
- Centre for Chemical Biology, Universiti Sains Malaysia, Bayan Lepas, Penang 11900, Malaysia
| | - Beow Keat Yap
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor, Penang 11800, Malaysia
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Brennan J, Lu ML, Kang Y. A New Model of Esophageal Cancers by Using a Detergent-Free Decellularized Matrix in a Perfusion Bioreactor. Bioengineering (Basel) 2023; 10:96. [PMID: 36671668 PMCID: PMC9854977 DOI: 10.3390/bioengineering10010096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/06/2023] [Accepted: 01/06/2023] [Indexed: 01/13/2023] Open
Abstract
The lack of physiologically relevant human esophageal cancer models has as a result that many esophageal cancer studies are encountering major bottleneck challenges in achieving breakthrough progress. To address the issue, here we engineered a 3D esophageal tumor tissue model using a biomimetic decellularized esophageal matrix in a customized bioreactor. To obtain a biomimetic esophageal matrix, we developed a detergent-free, rapid decellularization method to decellularize porcine esophagus. We characterized the decellularized esophageal matrix (DEM) and utilized the DEM for the growth of esophageal cancer cell KYSE30 in well plates and the bioreactor. We then analyzed the expression of cancer-related markers of KYSE30 cells and compared them with formalin-fixed, paraffin-embedded (FFPE) esophageal squamous cell carcinoma (ESCC) tissue biospecimens. Our results show that the detergent-free decellularization method preserved the esophageal matrix components and effectively removed cell nucleus. KYSE30 cancer cells proliferated well on and inside the DEM. KYSE30 cells cultured on the DEM in the dynamic bioreactor show different cancer marker expressions than those in the static well plate, and also share some similarities to the FFPE-ESCC biospecimens. These findings built a foundation with potential for further study of esophageal cancer behavior in a biomimetic microenvironment using this new esophageal cancer model.
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Affiliation(s)
- Jordan Brennan
- Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Michael L. Lu
- Department of Biomedical Science, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
- Faculty of Integrative Biology PhD Program, Department of Biological Science, Florida Atlantic University, Boca Raton, FL 33431, USA
| | - Yunqing Kang
- Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, USA
- Department of Biomedical Science, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
- Faculty of Integrative Biology PhD Program, Department of Biological Science, Florida Atlantic University, Boca Raton, FL 33431, USA
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Mo Y, Leung LL, Mak CSL, Wang X, Chan WS, Hui LMN, Tang HWM, Siu MKY, Sharma R, Xu D, Tsui SKW, Ngan HYS, Yung MMH, Chan KKL, Chan DW. Tumor-secreted exosomal miR-141 activates tumor-stroma interactions and controls premetastatic niche formation in ovarian cancer metastasis. Mol Cancer 2023; 22:4. [PMID: 36624516 PMCID: PMC9827705 DOI: 10.1186/s12943-022-01703-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Metastatic colonization is one of the critical steps in tumor metastasis. A pre-metastatic niche is required for metastatic colonization and is determined by tumor-stroma interactions, yet the mechanistic underpinnings remain incompletely understood. METHODS PCR-based miRNome profiling, qPCR, immunofluorescent analyses evaluated the expression of exosomal miR-141 and cell-to-cell communication. LC-MS/MS proteomic profiling and Dual-Luciferase analyses identified YAP1 as the direct target of miR-141. Human cytokine profiling, ChIP, luciferase reporter assays, and subcellular fractionation analyses confirmed YAP1 in modulating GROα production. A series of in vitro tumorigenic assays, an ex vivo model and Yap1 stromal conditional knockout (cKO) mouse model demonstrated the roles of miR-141/YAP1/GROα/CXCR1/2 signaling cascade. RNAi, CRISPR/Cas9 and CRISPRi systems were used for gene silencing. Blood sera, OvCa tumor tissue samples, and tissue array were included for clinical correlations. RESULTS Hsa-miR-141-3p (miR-141), an exosomal miRNA, is highly secreted by ovarian cancer cells and reprograms stromal fibroblasts into proinflammatory cancer-associated fibroblasts (CAFs), facilitating metastatic colonization. A mechanistic study showed that miR-141 targeted YAP1, a critical effector of the Hippo pathway, reducing the nuclear YAP1/TAZ ratio and enhancing GROα production from stromal fibroblasts. Stromal-specific knockout (cKO) of Yap1 in murine models shaped the GROα-enriched microenvironment, facilitating in vivo tumor colonization, but this effect was reversed after Cxcr1/2 depletion in OvCa cells. The YAP1/GROα correlation was demonstrated in clinical samples, highlighting the clinical relevance of this research and providing a potential therapeutic intervention for impeding premetastatic niche formation and metastatic progression of ovarian cancers. CONCLUSIONS This study uncovers miR-141 as an OvCa-derived exosomal microRNA mediating the tumor-stroma interactions and the formation of tumor-promoting stromal niche through activating YAP1/GROα/CXCRs signaling cascade, providing new insight into therapy for OvCa patients with peritoneal metastases.
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Affiliation(s)
- Yulan Mo
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Leanne L. Leung
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Celia S. L. Mak
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Xueyu Wang
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Wai-Sun Chan
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Lynn M. N. Hui
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Hermit W. M. Tang
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Michelle K. Y. Siu
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Rakesh Sharma
- grid.194645.b0000000121742757Centre for PanorOmic Sciences Proteomics and Metabolomics Core, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Dakang Xu
- grid.16821.3c0000 0004 0368 8293Faculty of Medical Laboratory Science, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030 China
| | - Stephen K. W. Tsui
- grid.10784.3a0000 0004 1937 0482School of Biomedical Sciences, The Chinese University of Hong Kong, SAR Hong Kong, China
| | - Hextan Y. S. Ngan
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Mingo M. H. Yung
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - Karen K. L. Chan
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China
| | - David W. Chan
- grid.194645.b0000000121742757Department of Obstetrics & Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR China ,grid.10784.3a0000 0004 1937 0482School of Biomedical Sciences, The Chinese University of Hong Kong, SAR Hong Kong, China ,grid.511521.3School of Medicine, The Chinese University of Hong Kong-Shenzhen, Shenzhen, 518172 China
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Zhao C, Gong J, Bai Y, Yin T, Zhou M, Pan S, Liu Y, Gao Y, Zhang Z, Shi Y, Zhu F, Zhang H, Wang M, Qin R. A self-amplifying USP14-TAZ loop drives the progression and liver metastasis of pancreatic ductal adenocarcinoma. Cell Death Differ 2023; 30:1-15. [PMID: 35906484 PMCID: PMC9883464 DOI: 10.1038/s41418-022-01040-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 02/01/2023] Open
Abstract
With a 5-year survival rate of approximately 10%, pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal solid malignancies in humans. A poor understanding of the underlying biology has resulted in a lack of effective targeted therapeutic strategies. Tissue microarray and bioinformatics analyses have revealed that the downstream transcriptional coactivator of the Hippo pathway, transcriptional coactivator with PDZ-binding motif (TAZ), might be a therapeutic target in PDAC. Since pharmacological inhibition of TAZ is challenging, we performed unbiased deubiquitinase (DUB) library screening to explore the pivotal regulators of TAZ ubiquitination as potential targets in PDAC models. We found that USP14 contributed to Yes-associated protein (YAP)/TAZ transcriptional activity and stabilized TAZ but not YAP. Mechanistically, USP14 catalyzed the K48-linked deubiquitination of TAZ to promote TAZ stabilization. Moreover, TAZ facilitated the transcription of USP14 by binding to the TEA domain transcription factor (TEAD) 1/4 response element in the promoter of USP14. USP14 was found to modulate the expression of TAZ downstream target genes through a feedback mechanism and ultimately promoted cancer progression and liver metastasis in PDAC models in vitro and in vivo. In addition, depletion of USP14 led to proteasome-dependent degradation of TAZ and ultimately arrested PDAC tumour growth and liver metastasis. A strong positive correlation between USP14 and TAZ expression was also detected in PDAC patients. The small molecule inhibitor of USP14 catalytic activity, IU1, inhibited the development of PDAC in subcutaneous xenograft and liver metastasis models. Overall, our data strongly suggested that the self-amplifying USP14-TAZ loop was a previously unrecognized mechanism causing upregulated TAZ expression, and identified USP14 as a viable therapeutic target in PDAC.
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Affiliation(s)
- Chunle Zhao
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Jun Gong
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Yu Bai
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Taoyuan Yin
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Min Zhou
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Shutao Pan
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Yuhui Liu
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Yang Gao
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Zhenxiong Zhang
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Yongkang Shi
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Feng Zhu
- grid.33199.310000 0004 0368 7223Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030 Hubei China
| | - Hang Zhang
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China. .,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China.
| | - Min Wang
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China. .,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China.
| | - Renyi Qin
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China. .,Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, 430030, Hubei, China.
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9
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Aljabal G, Yap BK. In Silico Studies on GCP-Lys-OMe as a Potential 14-3-3σ Homodimer Stabilizer. Pharmaceuticals (Basel) 2022; 15:ph15101290. [PMID: 36297403 PMCID: PMC9609495 DOI: 10.3390/ph15101290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/09/2022] [Accepted: 10/13/2022] [Indexed: 11/18/2022] Open
Abstract
14-3-3 sigma is a vital negative cell cycle regulator. Its expression is consistently downregulated in many types of cancer through gene promoter hypermethylation or proteasomal degradation. 14-3-3 sigma needs to form a homodimer to be functional, while dimers are less prone to degradation than monomers. This suggests that a homodimer stabilizer may increase the tumor suppressive activities of 14-3-3 sigma. However, no known homodimer stabilizer of 14-3-3 sigma has been reported to date. Therefore, this study attempts to test the potential capability of GCP-Lys-OMe (previously reported to bind at the dimer interface of 14-3-3 zeta isoform), to bind and stabilize the 14-3-3 sigma homodimer. In silico docking of GCP-Lys-OMe on 14-3-3 sigma showed more favorable interaction energy (−9.63 kcal/mole) to the dimer interface than 14-3-3 zeta (−7.73 kcal/mole). Subsequent 100 ns molecular dynamics simulation of the GCP-Lys-OMe/14-3-3 sigma complex revealed a highly stable interaction with an average root-mean-square deviation of 0.39 nm (protein backbone) and 0.77 nm (ligand atoms). More contacts between residues at the homodimer interface and a smaller coverage of conformational space of protein atoms were detected for the bound form than for the apo form. These results suggest that GCP-Lys-OMe is a potential homodimer stabilizer of 14-3-3 sigma.
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10
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Zhou Y, Fang C, Xu H, Yuan L, Liu Y, Wang X, Zhang A, Shao A, Zhou D. Ferroptosis in glioma treatment: Current situation, prospects and drug applications. Front Oncol 2022; 12:989896. [PMID: 36249003 PMCID: PMC9557197 DOI: 10.3389/fonc.2022.989896] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/14/2022] [Indexed: 11/13/2022] Open
Abstract
Ferroptosis is a regulatory form of iron-dependent cell death caused by the accumulation of lipid-based reactive oxygen species (ROS) and differs from apoptosis, pyroptosis, and necrosis. Especially in neoplastic diseases, the susceptibility of tumor cells to ferroptosis affects prognosis and is associated with complex effects. Gliomas are the most common primary intracranial tumors, accounting for disease in 81% of patients with malignant brain tumors. An increasing number of studies have revealed the particular characteristics of iron metabolism in glioma cells. Therefore, agents that target a wide range of molecules involved in ferroptosis may regulate this process and enhance glioma treatment. Here, we review the underlying mechanisms of ferroptosis and summarize the potential therapeutic options for targeting ferroptosis in glioma.
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Affiliation(s)
- Yuhang Zhou
- Health Management Center, Tongde Hospital of Zhejiang Province, Hangzhou, China
- The First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Chaoyou Fang
- Department of Neurosurgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Houshi Xu
- Department of Neurosurgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ling Yuan
- Department of Neurosurgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yibo Liu
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaoyu Wang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Anke Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Anke Zhang, ; Anwen Shao, ; Danyang Zhou,
| | - Anwen Shao
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Anke Zhang, ; Anwen Shao, ; Danyang Zhou,
| | - Danyang Zhou
- Health Management Center, Tongde Hospital of Zhejiang Province, Hangzhou, China
- *Correspondence: Anke Zhang, ; Anwen Shao, ; Danyang Zhou,
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11
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The deubiquitinase USP7 promotes HNSCC progression via deubiquitinating and stabilizing TAZ. Cell Death Dis 2022; 13:677. [PMID: 35931679 PMCID: PMC9356134 DOI: 10.1038/s41419-022-05113-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 01/21/2023]
Abstract
Dysregulated abundance, location and transcriptional output of Hippo signaling effector TAZ have been increasingly linked to human cancers including head neck squamous cell carcinoma (HNSCC). TAZ is subjected to ubiquitination and degradation mediated by E3 ligase β-TRCP. However, the deubiquitinating enzymes and mechanisms responsible for its protein stability remain underexplored. Here, we exploited customized deubiquitinases siRNA and cDNA library screen strategies and identified USP7 as a bona fide TAZ deubiquitinase in HNSCC. USP7 promoted cell proliferation, migration, invasion in vitro and tumor growth by stabilizing TAZ. Mechanistically, USP7 interacted with, deubiquitinated and stabilized TAZ by selectively removing its K48-linked ubiquitination chain independent of canonical Hippo kinase cascade. USP7 potently antagonized β-TRCP-mediated ubiquitin-proteasomal degradation of TAZ and enhanced its nuclear retention and transcriptional output. Importantly, overexpression of USP7 correlated with TAZ upregulation, tumor aggressiveness and unfavorable prognosis in HNSCC patients. Pharmacological inhibition of USP7 significantly suppressed tumor growth in both xenograft and PDX models. Collectively, these findings identify USP7 as an essential regulator of TAZ and define USP7-TAZ signaling axis as a novel biomarker and potential therapeutic target for HNSCC.
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12
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Yousefi H, Delavar MR, Piroozian F, Baghi M, Nguyen K, Cheng T, Vittori C, Worthylake D, Alahari SK. Hippo signaling pathway: A comprehensive gene expression profile analysis in breast cancer. Biomed Pharmacother 2022; 151:113144. [PMID: 35623167 DOI: 10.1016/j.biopha.2022.113144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/10/2022] [Accepted: 05/15/2022] [Indexed: 11/30/2022] Open
Abstract
Breast cancer (BC) is the most frequently diagnosed malignancy in women and a major public health concern. The Hippo pathway is an evolutionarily conserved signaling pathway that serves as a key regulator for a wide variety of biological processes. Hippo signaling has been shown to have both oncogenic and tumor-suppressive functions in various cancers. Core components of the Hippo pathway consist of various kinases and downstream effectors such as YAP/TAZ. In the current report, differential expression of Hippo pathway elements as well as the correlation of Hippo pathway mRNAs with various clinicopathologic characteristics, including molecular subtypes, receptor status, and methylation status, has been investigated in BC using METABRIC and TCGA datasets. In this review, we note deregulation of several Hippo signaling elements in BC patients. Moreover, we see examples of negative correlations between methylation of Hippo genes and mRNA expression. The expression of Hippo genes significantly varies between different receptor subgroups. Because of the clear associations between mRNA expression and methylation status, DNA methylation may be one of the mechanisms that regulate the Hippo pathway in BC cells. Differential expression of Hippo genes among various BC molecular subtypes suggests that Hippo signaling may function differently in different subtypes of BC. Our data also highlights an interesting link between Hippo components' transcription and ER negativity in BC. In conclusion, substantial deregulation of Hippo signaling components suggests an important role of these genes in breast cancer.
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Affiliation(s)
- Hassan Yousefi
- Louisiana State University Health Science Center (LSUHSC), Biochemistry & Molecular Biology, New Orleans, LA, USA
| | - Mahsa Rostamian Delavar
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | | | - Masoud Baghi
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Khoa Nguyen
- Department of Medicine, Tulane University School of Medicine, New Orleans, LA, USA
| | - Thomas Cheng
- Department of Medicine, Tulane University School of Medicine, New Orleans, LA, USA
| | - Cecilia Vittori
- Louisiana State University Health Sciences Center and Stanley S. Scott Cancer Center, New Orleans, LA, USA
| | - David Worthylake
- Louisiana State University Health Science Center (LSUHSC), Biochemistry & Molecular Biology, New Orleans, LA, USA
| | - Suresh K Alahari
- Louisiana State University Health Science Center (LSUHSC), Biochemistry & Molecular Biology, New Orleans, LA, USA.
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Żelazowska M, Kujawa R. Microscopic study of the primary growth ovarian follicles of the pike-perch Sander lucioperca (Linnaeus 1758) (Actinopterygii, Perciformes). Micron 2022; 160:103318. [PMID: 35759902 DOI: 10.1016/j.micron.2022.103318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/08/2022] [Accepted: 06/14/2022] [Indexed: 11/24/2022]
Abstract
The ovaries of Sander lucioperca (Actinopterygii, Perciformes) are made up of the germinal epithelium and ovarian follicles, in which primary oocytes grow. Each follicle is composed of an oocyte surrounded by flattened follicular cells, the basal lamina, and thecal cells. The early stages of oocyte development (primary growth = previtellogenesis) are not fully explained in this species. The results of research with the use of stereoscopic, light, fluorescence, and transmission electron microscopes on ovarian follicles containing developing primary oocytes of S. lucioperca are presented. The polarization and ultrastructure of oocytes are described and discussed. The deposition of egg envelopes during the primary growth and the ultrastructure of the eggshell in maturing follicles of S. lucioperca are also presented. Nuclei in primary oocytes comprise lampbrush chromosomes, nuclear bodies, and nucleoli. Numerous additional nucleoli arise in the nucleoplasm during primary growth and locate close to the nuclear envelope. The Balbiani body in the cytoplasm of oocytes (ooplasm) is composed of nuage aggregations of nuclear origin and mitochondria, endoplasmic reticulum (ER), and Golgi apparatus. The presence of the Balbiani body was reported in oocytes of numerous species of Actinopterygii; however, its ultrastructure was investigated in a limited number of species. In primary oocytes of S. lucioperca, the Balbiani body is initially located in the perinuclear ooplasm on one side of the nucleus. Next, it surrounds the nucleus, expands toward the plasma membrane of oocytes (oolemma), and becomes fragmented. Within the Balbiani body, the granular nuage condenses in the form of threads, locates near the oolemma, at the vegetal oocyte pole, and then dissolves. Mitochondria and cisternae of the rough endoplasmic reticulum (RER) are present between the threads. During primary growth micropylar cells differentiate in the follicular epithelium. They contain cisternae and vesicles of the RER and Golgi apparatus as well as numerous dense vesicles suggesting high synthetic and secretory activity. During the final step of primary growth several follicular cells delaminate from the follicular epithelium, migrate toward the oocyte and submerge in the most external egg envelope. In the ooplasm, three regions are distinguished: perinuclear, endoplasm, and periplasm. Cortical alveoli arise in the perinuclear ooplasm and in the endoplasm as a result of the fusion of RER vesicles with Golgi ones. They are evenly distributed. Lamellar bodies in the periplasm store the plasma membrane and release it into a space between the follicular cells and the oocyte. The developing eggshell in this space is made up of two egg envelopes (the internal one and the external) that are pierced by canals formed around the microvilli of oocytes and the processes of follicular cells. In the deposition of egg envelopes the oocyte itself and follicular cells are engaged. In maturing ovarian follicles the eggshell is solid and the internal egg envelope is covered with protuberances.
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Affiliation(s)
- Monika Żelazowska
- Department of Developmental Biology and Morphology of Invertebrates, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, Poland.
| | - Roman Kujawa
- Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Oczapowskiego 2, 10-719 Olsztyn, Poland
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14
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Zhang Y, Bai J, Cheng R, Zhang D, Qiu Z, Liu T, Che N, Dong X, Zhao N, Lin X, Liang X, Li F, Li Y, Sun B, Zhao X. TAZ promotes vasculogenic mimicry in gastric cancer through the upregulation of TEAD4. J Gastroenterol Hepatol 2022; 37:714-726. [PMID: 35062042 DOI: 10.1111/jgh.15779] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 12/27/2021] [Accepted: 01/07/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIM Vasculogenic mimicry (VM) is a unique blood supply pattern in malignant tumors that is closely associated with metastasis and poor prognosis. The Hippo signaling effector TAZ is upregulated in several cancers, promoting cancer proliferation and metastasis. This study aimed to identify the function of TAZ and its regulatory mechanism in promoting VM in gastric cancer (GC). METHODS The expression of TAZ and TEAD4 and their correlations with overall survival and VM-related markers were analyzed in 228 cases of GC. The regulatory mechanism of TAZ and its interaction with TEAD4 in epithelial-mesenchymal transition (EMT) and VM were investigated in vitro and in vivo. RESULTS TAZ was highly expressed in GC samples and was associated with shorter patient survival time. TAZ expression was positively correlated with TEAD4 and VM in patients with GC. TAZ enhanced the migration and invasion capacity of GC cells through EMT in vitro and upregulated the expression of VM-associated proteins, including VE-cadherin, MMP2, and MMP9, thus promoting VM formation. Overexpression of TAZ accelerated the growth of subcutaneous xenograft and promoted VM formation in vivo. Co-immunoprecipitation assays showed that TAZ can directly bind to TEAD4, and in vitro experiments showed that this binding mediates the function of TAZ in regulating EMT and VM formation in GC. CONCLUSIONS TAZ promotes GC metastasis and VM by upregulating TEAD4 expression. Our findings expand the role of TAZ in VM and provide new theoretical support for the use of antiangiogenic therapy in the treatment of advanced GC.
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Affiliation(s)
- Yanhui Zhang
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Jingru Bai
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Runfen Cheng
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Danfang Zhang
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Zhiqiang Qiu
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Tieju Liu
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Na Che
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Xueyi Dong
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Nan Zhao
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Xian Lin
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Xiaohui Liang
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Fan Li
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Yue Li
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Baocun Sun
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China.,Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Xiulan Zhao
- Department of Pathology, Tianjin Medical University, Tianjin, China
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15
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The YAP/TAZ Signaling Pathway in the Tumor Microenvironment and Carcinogenesis: Current Knowledge and Therapeutic Promises. Int J Mol Sci 2021; 23:ijms23010430. [PMID: 35008857 PMCID: PMC8745604 DOI: 10.3390/ijms23010430] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 12/14/2022] Open
Abstract
The yes-associated protein (YAP) and the transcriptional coactivator with PDZ-binding motif (TAZ) are transcriptional coactivators, members of the Hippo signaling pathway, which play a critical role in cell growth regulation, embryonic development, regeneration, proliferation, and cancer origin and progression. The mechanism involves the nuclear binding of the un-phosphorylated YAP/TAZ complex to release the transcriptional enhanced associate domain (TEAD) from its repressors. The active ternary complex is responsible for the aforementioned biological effects. Overexpression of YAP/TAZ has been reported in cancer stem cells and tumor resistance. The resistance involves chemotherapy, targeted therapy, and immunotherapy. This review provides an overview of YAP/TAZ pathways’ role in carcinogenesis and tumor microenvironment. Potential therapeutic alternatives are also discussed.
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16
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Casati G, Giunti L, Iorio AL, Marturano A, Galli L, Sardi I. Hippo Pathway in Regulating Drug Resistance of Glioblastoma. Int J Mol Sci 2021; 22:ijms222413431. [PMID: 34948224 PMCID: PMC8705144 DOI: 10.3390/ijms222413431] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 11/30/2021] [Accepted: 12/09/2021] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma (GBM) represents the most common and malignant tumor of the Central Nervous System (CNS), affecting both children and adults. GBM is one of the deadliest tumor types and it shows a strong multidrug resistance (MDR) and an immunosuppressive microenvironment which remain a great challenge to therapy. Due to the high recurrence of GBM after treatment, the understanding of the chemoresistance phenomenon and how to stimulate the antitumor immune response in this pathology is crucial. The deregulation of the Hippo pathway is involved in tumor genesis, chemoresistance and immunosuppressive nature of GBM. This pathway is an evolutionarily conserved signaling pathway with a kinase cascade core, which controls the translocation of YAP (Yes-Associated Protein)/TAZ (Transcriptional Co-activator with PDZ-binding Motif) into the nucleus, leading to regulation of organ size and growth. With this review, we want to highlight how chemoresistance and tumor immunosuppression work in GBM and how the Hippo pathway has a key role in them. We linger on the role of the Hippo pathway evaluating the effect of its de-regulation among different human cancers. Moreover, we consider how different pathways are cross-linked with the Hippo signaling in GBM genesis and the hypothetical mechanisms responsible for the Hippo pathway activation in GBM. Furthermore, we describe various drugs targeting the Hippo pathway. In conclusion, all the evidence described largely support a strong involvement of the Hippo pathway in gliomas progression, in the activation of chemoresistance mechanisms and in the development of an immunosuppressive microenvironment. Therefore, this pathway is a promising target for the treatment of high grade gliomas and in particular of GBM.
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Affiliation(s)
- Giacomo Casati
- Neuro-Oncology Unit, Department of Pediatric Oncology, Meyer Children’s Hospital, 50139 Florence, Italy; (L.G.); (A.L.I.); (A.M.); (I.S.)
- Correspondence:
| | - Laura Giunti
- Neuro-Oncology Unit, Department of Pediatric Oncology, Meyer Children’s Hospital, 50139 Florence, Italy; (L.G.); (A.L.I.); (A.M.); (I.S.)
| | - Anna Lisa Iorio
- Neuro-Oncology Unit, Department of Pediatric Oncology, Meyer Children’s Hospital, 50139 Florence, Italy; (L.G.); (A.L.I.); (A.M.); (I.S.)
| | - Arianna Marturano
- Neuro-Oncology Unit, Department of Pediatric Oncology, Meyer Children’s Hospital, 50139 Florence, Italy; (L.G.); (A.L.I.); (A.M.); (I.S.)
| | - Luisa Galli
- Infectious Disease Unit, Department of Health Sciences, University of Florence, 50139 Florence, Italy;
| | - Iacopo Sardi
- Neuro-Oncology Unit, Department of Pediatric Oncology, Meyer Children’s Hospital, 50139 Florence, Italy; (L.G.); (A.L.I.); (A.M.); (I.S.)
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17
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Astarita JL, Keerthivasan S, Husain B, Şenbabaoğlu Y, Verschueren E, Gierke S, Pham VC, Peterson SM, Chalouni C, Pierce AA, Lill JR, Gonzalez LC, Martinez-Martin N, Turley SJ. The neutrophil protein CD177 is a novel PDPN receptor that regulates human cancer-associated fibroblast physiology. PLoS One 2021; 16:e0260800. [PMID: 34879110 PMCID: PMC8654239 DOI: 10.1371/journal.pone.0260800] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/18/2021] [Indexed: 01/12/2023] Open
Abstract
The cancer-associated fibroblast (CAF) marker podoplanin (PDPN) is generally correlated with poor clinical outcomes in cancer patients and thus represents a promising therapeutic target. Despite its biomedical relevance, basic aspects of PDPN biology such as its cellular functions and cell surface ligands remain poorly uncharacterized, thus challenging drug development. Here, we utilize a high throughput platform to elucidate the PDPN cell surface interactome, and uncover the neutrophil protein CD177 as a new binding partner. Quantitative proteomics analysis of the CAF phosphoproteome reveals a role for PDPN in cell signaling, growth and actomyosin contractility, among other processes. Moreover, cellular assays demonstrate that CD177 is a functional antagonist, recapitulating the phenotype observed in PDPN-deficient CAFs. In sum, starting from the unbiased elucidation of the PDPN co-receptome, our work provides insights into PDPN functions and reveals the PDPN/CD177 axis as a possible modulator of fibroblast physiology in the tumor microenvironment.
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Affiliation(s)
- Jillian L. Astarita
- Department of Cancer Immunology, Genentech, South San Francisco, California, United States of America
| | - Shilpa Keerthivasan
- Department of Cancer Immunology, Genentech, South San Francisco, California, United States of America
| | - Bushra Husain
- Department of Microchemistry, Proteomics and Lipidomics, Genentech, South San Francisco, California, United States of America
| | - Yasin Şenbabaoğlu
- Department of Bioinformatics and Computational Biology, Genentech, South San Francisco, California, United States of America
| | - Erik Verschueren
- Department of Microchemistry, Proteomics and Lipidomics, Genentech, South San Francisco, California, United States of America
| | - Sarah Gierke
- Center for Advanced Light Microscopy, Genentech, South San Francisco, California, United States of America
| | - Victoria C. Pham
- Department of Microchemistry, Proteomics and Lipidomics, Genentech, South San Francisco, California, United States of America
| | - Sean M. Peterson
- Department of Microchemistry, Proteomics and Lipidomics, Genentech, South San Francisco, California, United States of America
| | - Cecile Chalouni
- Center for Advanced Light Microscopy, Genentech, South San Francisco, California, United States of America
| | - Andrew A. Pierce
- Department of Research Pathology, Genentech, South San Francisco, California, United States of America
| | - Jennie R. Lill
- Department of Microchemistry, Proteomics and Lipidomics, Genentech, South San Francisco, California, United States of America
| | - Lino C. Gonzalez
- Department of Microchemistry, Proteomics and Lipidomics, Genentech, South San Francisco, California, United States of America
| | - Nadia Martinez-Martin
- Department of Microchemistry, Proteomics and Lipidomics, Genentech, South San Francisco, California, United States of America
- * E-mail: (SJT); (NMM)
| | - Shannon J. Turley
- Department of Cancer Immunology, Genentech, South San Francisco, California, United States of America
- * E-mail: (SJT); (NMM)
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18
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Li D, Chen L, Zhang X, Wang Y, Huang C, Li J, He F, He W. miR‑125a‑5p reverses epithelial‑mesenchymal transition and restores drug sensitivity by negatively regulating TAFAZZIN signaling in breast cancer. Mol Med Rep 2021; 24:812. [PMID: 34549308 PMCID: PMC8477177 DOI: 10.3892/mmr.2021.12452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 07/16/2021] [Indexed: 01/04/2023] Open
Abstract
MicroRNA (miR)‑125a‑5p represses tafazzin phospholipid‑lysophospholipid transacylases (TAFAZZIN) expression and inhibits the epithelial‑mesenchymal transition (EMT) of ovarian cancer cells. EMT was found to have a crucial role in the acquisition of chemoresistance. Thus, the present study aimed to determine whether miR‑125a‑5p reverses EMT and restores drug sensitivity by negatively regulating TAFAZZIN in breast cancer. The expression of miR‑125a‑5p/TAFAZZIN and its association with chemotherapy response were determined in tissue samples from patients with breast cancer. Furthermore, the effects of miR‑125a‑5p on breast cancer cells were elucidated using cell proliferation and cell apoptosis assays. Then, the regulatory mechanism of miR‑125a‑5p in breast cancer was investigated by reverse transcription‑quantitative PCR, western blotting, dual‑luciferase reporter and RNA immunoprecipitation assays. The results demonstrated that miR‑125a‑5p inhibited the EMT of MCF‑7/adriamycin (Adr) breast cancer cells, as well as decreased the proliferation and increased the apoptosis of breast cancer cells treated with Adr/docetaxel. In addition, miR‑125a‑5p downregulated the expression levels of TAFAZZIN, Transglutaminase 2, phosphorylated‑AKT, N‑cadherin, vimentin and proliferating cell nuclear antigen, and significantly increased those of E‑cadherin, cleaved caspase-3 and Bax in MCF7/Adr cells. Similar results were obtained with small interfering RNA‑TAFAZZIN. Moreover, TAFAZZIN was identified as a direct target of miR‑125a‑5p in MCF7/Adr breast cancer cells. In addition, increased miR‑125a‑5p expression was observed in breast tumors from patients exhibiting a chemotherapy response, and TAFAZZIN mRNA expression was elevated in patients with no chemotherapy response. Hence, miR‑125a‑5p expression was negatively correlated with TAFAZZIN mRNA expression in breast cancer tissues. All these data suggested that miR‑125a‑5p reverses EMT and restores drug sensitivity by negatively regulating TAFAZZIN in breast cancer and, therefore, has potential as a novel therapeutic target for this disease.
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Affiliation(s)
- Dongmei Li
- Breast Cancer Center, The Affiliated Cancer Hospital of Nanchang University (Jiangxi Provincial Cancer Hospital), Nanchang, Jiangxi 330029, P.R. China
| | - Limei Chen
- Research Center for Differentiation and Development of TCM Basic Theory, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, P.R. China
| | - Xiaofang Zhang
- Breast Cancer Center, The Affiliated Cancer Hospital of Nanchang University (Jiangxi Provincial Cancer Hospital), Nanchang, Jiangxi 330029, P.R. China
| | - Yanhua Wang
- Breast Cancer Center, The Affiliated Cancer Hospital of Nanchang University (Jiangxi Provincial Cancer Hospital), Nanchang, Jiangxi 330029, P.R. China
| | - Chuansheng Huang
- Breast Cancer Center, The Affiliated Cancer Hospital of Nanchang University (Jiangxi Provincial Cancer Hospital), Nanchang, Jiangxi 330029, P.R. China
| | - Jianglong Li
- Breast Cancer Center, The Affiliated Cancer Hospital of Nanchang University (Jiangxi Provincial Cancer Hospital), Nanchang, Jiangxi 330029, P.R. China
| | - Feilong He
- Breast Cancer Center, The Affiliated Cancer Hospital of Nanchang University (Jiangxi Provincial Cancer Hospital), Nanchang, Jiangxi 330029, P.R. China
| | - Wenxing He
- Breast Cancer Center, The Affiliated Cancer Hospital of Nanchang University (Jiangxi Provincial Cancer Hospital), Nanchang, Jiangxi 330029, P.R. China
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19
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Yang L, Wang B, Jiao X, Zhou C, Chen S, Gao X, Sun W, Song S, Li J, Liu J, Wang Y, Liu P. TAZ maintains telomere length in TNBC cells by mediating Rad51C expression. Breast Cancer Res 2021; 23:89. [PMID: 34488828 PMCID: PMC8422726 DOI: 10.1186/s13058-021-01466-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 08/25/2021] [Indexed: 11/10/2022] Open
Abstract
Background Telomere maintenance is crucial for the unlimited proliferation of cancer cells and essential for the “stemness” of multiple cancer cells. TAZ is more extensively expressed in triple negative breast cancers (TNBC) than in other types of breast cancers, and promotes proliferation, transformation and EMT of cancer cells. It was reported that TAZ renders breast cancer cells with cancer stem cell features. However, whether TAZ regulates telomeres is still unclear. In this study, we explored the roles of TAZ in the regulation of telomere maintenance in TNBC cells. Methods siRNA and shRNA was used to generate TAZ-depleted TNBC cell lines. qPCR and Southern analysis of terminal restriction fragments techniques were used to test telomere length. Co-immunoprecipitation, Western blotting, immunofluorescence, Luciferase reporter assay and Chromatin-IP were conducted to investigate the underlying mechanism. Results By knocking down the expression of TAZ in TNBC cells, we found, for the first time, that TAZ is essential for the maintenance of telomeres in TNBC cells. Moreover, loss of TAZ causes senescence phenotype of TNBC cells. The observed extremely shortened telomeres in late passages of TAZ knocked down cells correlate with an elevated hTERT expression, reductions of shelterin proteins, and an activated DNA damage response pathway. Our data also showed that depletion of TAZ results in overexpression of TERRAs, which are a group of telomeric repeat‐containing RNAs and regulate telomere length and integrity. Furthermore, we discovered that TAZ maintains telomere length of TNBC cells likely by facilitating the expression of Rad51C, a crucial element of homologous recombination pathway that promotes telomere replication. Conclusions This study supports the notion that TAZ is an oncogenic factor in TNBC, and further reveals a novel telomere-related pathway that is employed by TAZ to regulate TNBC. Supplementary Information The online version contains supplementary material available at 10.1186/s13058-021-01466-z.
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Affiliation(s)
- Lu Yang
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China
| | - Bo Wang
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China
| | - Xinyan Jiao
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China
| | - Can Zhou
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China
| | - Su Chen
- Laboratory of Molecular and Cellular Biology, School of Basic Medical Sciences, Henan University School of Medicine, North Jinming Avenue, Kaifeng, 475004, Henan Province, China
| | - Xiaoqian Gao
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China
| | - Wei Sun
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China
| | - Shaoran Song
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China
| | - Juan Li
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China
| | - Jie Liu
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China
| | - Yaochun Wang
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China
| | - Peijun Liu
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China. .,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta Western Rd, Xi'an, 710061, Shaanxi Province, China.
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20
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Zheng C, Li R, Zheng S, Fang H, Xu M, Zhong L. LINC00174 Facilitates Cell Proliferation, Cell Migration and Tumor Growth of Osteosarcoma via Regulating the TGF-β/SMAD Signaling Pathway and Upregulating SSH2 Expression. Front Mol Biosci 2021; 8:697773. [PMID: 34222341 PMCID: PMC8245779 DOI: 10.3389/fmolb.2021.697773] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/02/2021] [Indexed: 01/10/2023] Open
Abstract
Osteosarcoma (OS), a frequent malignant tumor which mainly occurs in the bone. The roles of long noncoding RNAs (lncRNAs) have been revealed in cancers, including OS. LncRNA long intergenic non-protein coding RNA (LINC00174) has been validated as an oncogene in several cancers. However, the role of LINC00174 in OS has not been explored. In our research, loss-of-function assays were conducted to explore the function of LINC00174 in OS cells. Then, we explored the downstream pathway of LINC00174 in OS cells. Bioinformatics, RNA pull-down and RIP experiments investigated the downstream mechanism of LINC00174 in OS cells. Finally, in vivo assays clarified the effect of LINC00174 on tumorigenesis. We found that LINC00174 was upregulated in OS tissues and cells. LINC00174 knockdown repressed OS cell growth. Mechanistically, LINC00174 knockdown suppressed the TGF-β/SMAD pathway. LINC00174 interacted with miR-378a-3p, and slingshot protein phosphatase 2 (SSH2) 3′UTR was targeted by miR-378a-3p in OS cells. Rescue assays showed that SSH2 upregulation or miR-378a-3p inhibition counteracted the inhibitory effect of LINC00174 depletion in OS cell growth. Additionally, LINC00174 depletion suppressed tumor growth in mice. In conclusion, LINC00174 promotes OS cellular malignancy and tumorigenesis via the miR-378a-3p/SSH2 axis and the TGF-β/SMAD pathway, which might provide a novel insight for OS treatment.
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Affiliation(s)
- Changjun Zheng
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Ronghang Li
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Shuang Zheng
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Hongjuan Fang
- Department of Electric Diagnostic, The Fourth Hospital of Jilin University, Changchun, China
| | - Meng Xu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Lei Zhong
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
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21
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Chu Y, Zhu C, Wang Q, Liu M, Wan W, Zhou J, Han R, Yang J, Luo W, Liu C, Zhou H, Li M, Yu F, Ye Y. Adipose-derived mesenchymal stem cells induced PAX8 promotes ovarian cancer cell growth by stabilizing TAZ protein. J Cell Mol Med 2021; 25:4434-4443. [PMID: 33830648 PMCID: PMC8093979 DOI: 10.1111/jcmm.16511] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 02/14/2021] [Accepted: 03/03/2021] [Indexed: 12/17/2022] Open
Abstract
Our previous studies have shown that the Adipose‐derived mesenchymal stem cells (ADSCs) can regulate metastasis and development of ovarian cancer. However, its specific mechanism has yet to be fully revealed. In this study, an RNA‐seq approach was adopted to compare the differences in mRNA levels in ovarian cancer cells being given or not given ADSCs. The mRNA level of paired box 8 (PAX8) changed significantly and was confirmed as an important factor in tumour‐inducing effect of ADSCs. In comparison with the ovarian cancer cells cultured in the common growth medium, those cultured in the medium supplemented with ADSCs showed a significant increase of the PAX8 level. Moreover, the cancer cell growth could be restricted, even in the ADSC‐treated group (P < .05), by inhibiting PAX8. In addition, an overexpression of PAX8 could elevate the proliferation of ovarian cancer cells. Moreover, Co‐IP assays in ovarian cancer cells revealed that an interaction existed between endogenous PAX8 and TAZ. And the PAX8 levels regulated the degradation of TAZ. The bioluminescence images captured in vivo manifested that the proliferation and the PAX8 expression level in ovarian cancers increased in the ADMSC‐treated group, and the effect of ADSCs in promoting tumours was weakened through inhibiting PAX8. Our findings indicate that the PAX8 expression increment could contribute a role in promoting the ADSC‐induced ovarian cancer cell proliferation through TAZ stability regulation.
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Affiliation(s)
- Yijing Chu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chengzhan Zhu
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qianqian Wang
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Meixin Liu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wei Wan
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jun Zhou
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Rendong Han
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jing Yang
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wenqiang Luo
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chong Liu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Huansheng Zhou
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Min Li
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Fengsheng Yu
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuanhua Ye
- Department of Obstetrics, The Affiliated Hospital of Qingdao University, Qingdao, China
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22
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Canzonetta C, Pelosi A, Di Matteo S, Veneziani I, Tumino N, Vacca P, Munari E, Pezzullo M, Theuer C, De Vito R, Pistoia V, Tomao L, Locatelli F, Moretta L, Caruana I, Azzarone B. Identification of neuroblastoma cell lines with uncommon TAZ +/mesenchymal stromal cell phenotype with strong suppressive activity on natural killer cells. J Immunother Cancer 2021; 9:jitc-2020-001313. [PMID: 33452207 PMCID: PMC7813384 DOI: 10.1136/jitc-2020-001313] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2020] [Indexed: 12/14/2022] Open
Abstract
Background Neuroblastoma (NB) is the most common, extracranial childhood solid tumor arising from neural crest progenitor cells and is a primary cause of death in pediatric patients. In solid tumors, stromal elements recruited or generated by the cancer cells favor the development of an immune-suppressive microenvironment. Herein, we investigated in NB cell lines and in NB biopsies, the presence of cancer cells with mesenchymal phenotype and determined the immune-suppressive properties of these tumor cells on natural killer (NK) cells. Methods We assessed the mesenchymal stromal cell (MSC)-like phenotype and function of five human NB cell lines and the presence of this particular subset of neuroblasts in NB biopsies using flow-cytometry, immunohistochemistry, RT-qPCR, cytotoxicity assays, western blot and silencing strategy. We corroborated our data consulting a public gene-expression dataset. Results Two NB cell lines, SK-N-AS and SK-N-BE(2)C, exhibited an unprecedented MSC phenotype (CD105+/CD90+/CD73+/CD29+/CD146+/GD2+/TAZ+). In these NB-MSCs, the ectoenzyme CD73 and the oncogenic/immune-regulatory transcriptional coactivator TAZ were peculiar markers. Their MSC-like nature was confirmed by their adipogenic and osteogenic differentiation potential. Immunohistochemical analysis confirmed the presence of neuroblasts with MSC phenotype (CD105+/CD73+/TAZ+). Moreover, a public gene-expression dataset revealed that, in stage IV NB, a higher expression of TAZ and CD105 strongly correlated with a poorer outcome. Among the NB-cell lines analyzed, only NB-MSCs exhibited multifactorial resistance to NK-mediated lysis, inhibition of activating NK receptors, signal adaptors and of NK-cell cytotoxicity through cell-cell contact mediated mechanisms. The latter property was controlled partially by TAZ, since its silencing in NB cells efficiently rescued NK-cell cytotoxic activity, while its overexpression induced opposite effects in non-NB-MSC cells. Conclusions We identified a novel NB immunoregulatory subset that: (i) displayed phenotypic and functional properties of MSC, (ii) mediated multifactorial resistance to NK-cell-induced killing and (iii) efficiently inhibited, in coculture, the cytotoxic activity of NK cells against target cells through a TAZ-dependent mechanism. These findings indicate that targeting novel cellular and molecular components may disrupt the immunomodulatory milieu of the NB microenvironment ameliorating the response to conventional treatments as well as to advanced immunotherapeutic approaches, including adoptive transfer of NK cells and chimeric antigen receptor T or NK cells.
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Affiliation(s)
| | - Andrea Pelosi
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Sabina Di Matteo
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Irene Veneziani
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Nicola Tumino
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Paola Vacca
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Enrico Munari
- Pathology Department, IRCCS Sacro Cuore Don Calabria, Negrar, Verona, Veneto, Italy.,Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Marco Pezzullo
- Core Facilities, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Rita De Vito
- Anatomical Pathology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Vito Pistoia
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Luigi Tomao
- Department of Paediatric Haematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Franco Locatelli
- Department of Paediatric Haematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Gynaecology/Obstetrics and Paediatrics, Sapienza, University of Rome, Rome, Italy
| | - Lorenzo Moretta
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Ignazio Caruana
- Department of Paediatric Haematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy .,Department of Paediatric Haematology, Oncology and Stem Cell Transplantation University Children's Hospital of Würzburg, Würzburg, Germany
| | - Bruno Azzarone
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
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23
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Aljabal G, Yap BK. 14-3-3σ and Its Modulators in Cancer. Pharmaceuticals (Basel) 2020; 13:ph13120441. [PMID: 33287252 PMCID: PMC7761676 DOI: 10.3390/ph13120441] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 01/19/2023] Open
Abstract
14-3-3σ is an acidic homodimer protein with more than one hundred different protein partners associated with oncogenic signaling and cell cycle regulation. This review aims to highlight the crucial role of 14-3-3σ in controlling tumor growth and apoptosis and provide a detailed discussion on the structure-activity relationship and binding interactions of the most recent 14-3-3σ protein-protein interaction (PPI) modulators reported to date, which has not been reviewed previously. This includes the new fusicoccanes stabilizers (FC-NAc, DP-005), fragment stabilizers (TCF521-123, TCF521-129, AZ-003, AZ-008), phosphate-based inhibitors (IMP, PLP), peptide inhibitors (2a-d), as well as inhibitors from natural sources (85531185, 95911592). Additionally, this review will also include the discussions of the recent efforts by a different group of researchers for understanding the binding mechanisms of existing 14-3-3σ PPI modulators. The strategies and state-of-the-art techniques applied by various group of researchers in the discovery of a different chemical class of 14-3-3σ modulators for cancer are also briefly discussed in this review, which can be used as a guide in the development of new 14-3-3σ modulators in the near future.
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24
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Roberto J, Sykes CE, Vacratsis PO. Characterization of Phosphopeptide Positional Isomers on the Transcriptional Co-activator TAZ. Biochemistry 2020; 59:4148-4154. [PMID: 33086783 DOI: 10.1021/acs.biochem.0c00521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The transcriptional co-activator with the PDZ binding motif (TAZ) is a critical regulator of numerous cellular processes such as cell differentiation, development, proliferation, and cell growth. Aberrant expression and activity of TAZ are also featured in many human malignancies. A hallmark of TAZ biology is its cytoplasmic retention mediated by 14-3-3 isoforms in response to phosphorylation of Ser89 by members of the LATS family of kinases. Following the observation that TAZ is a highly phosphorylated protein even when Ser89 is mutated, high-resolution mass spectrometry employing data-independent acquisition and ion mobility separation was conducted to elucidate additional TAZ phosphorylation sites that may play a role in regulating this critical transcriptional rheostat. Numerous phosphorylation sites on TAZ were identified, including several novel modifications. Of notable interest was the identification of positional phosphoisomers on a phosphopeptide containing Ser89. Optimized use of a so-called wideband enhancement acquisition technique yielded higher-quality fragmentation data that confirmed the detection of Ser93 as the positional phosphoisomer partner of Ser89 and identified diagnostic fragment ions for the phosphorylation events. Functional analysis indicated that Ser93 phosphorylation reduces the level of 14-3-3 association and increases the level of nuclear translocation, indicating this phosphorylation event attenuates the 14-3-3-mediated TAZ cytoplasmic retention mechanism. These findings suggest that the biological activities of TAZ are likely dynamically regulated by multisite phosphorylation.
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Affiliation(s)
- Justin Roberto
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, Ontario N9B 3P4, Canada
| | - Catherine E Sykes
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, Ontario N9B 3P4, Canada
| | - Panayiotis O Vacratsis
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, Ontario N9B 3P4, Canada
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25
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Zeng Y, Liu Q, Wang Y, Tian C, Yang Q, Zhao Y, Liu L, Wu G, Xu S. CDK5 Activates Hippo Signaling to Confer Resistance to Radiation Therapy Via Upregulating TAZ in Lung Cancer. Int J Radiat Oncol Biol Phys 2020; 108:758-769. [PMID: 32407930 DOI: 10.1016/j.ijrobp.2020.05.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/17/2020] [Accepted: 05/01/2020] [Indexed: 12/15/2022]
Abstract
PURPOSE Tumor resistance to radiation therapy is a therapeutic challenge in the treatment of patients with non-small cell lung cancer. Cyclin-dependent kinase 5 (CDK5) has been proposed to participate in cell proliferation, migration and invasion, drug resistance, and immune evasion. However, the functions and regulatory mechanisms of CDK5 in lung cancer radioresistance have not been investigated. METHODS AND MATERIALS DNA damage response and repair were measured by neutral comet assay and γ-H2AX and Rad51 foci staining. The biological functions of CDK5 in lung cancer radioresistance were investigated with clonogenic survival assays and xenograft tumor models. Small interfering RNAs and short hairpin RNAs were used to knock down CDK5 in A549 and H1299 cells. The effects of CDK5 depletion on the tumorigenic behaviors of lung cancer cells were evaluated in vitro and in vivo. Gene expression was examined by RNA-seq and quantitative real-time polymerase chain reaction. RESULTS We report that CDK5 depletion impairs lung cancer progression and radioresistance in vitro and in vivo. Mechanistically, we identify TAZ, a component of the Hippo pathway, as a critical downstream effector of CDK5. Loss of CDK5 downregulates TAZ expression and attenuates Hippo signaling activation. Importantly, we provide evidence that TAZ is the major effector mediating the biological functions of CDK5 in lung cancer. CONCLUSIONS These results illustrate that CDK5 activates Hippo signaling via TAZ to participate in tumorigenesis and radioresistance, suggesting that CDK5 may be a promising radiosensitization target for the treatment of lung cancer.
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Affiliation(s)
- Yulan Zeng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Quan Liu
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ye Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chen Tian
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qifan Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ye Zhao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Gang Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Shuangbing Xu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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26
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Vinik Y, Ortega FG, Mills GB, Lu Y, Jurkowicz M, Halperin S, Aharoni M, Gutman M, Lev S. Proteomic analysis of circulating extracellular vesicles identifies potential markers of breast cancer progression, recurrence, and response. SCIENCE ADVANCES 2020; 6:6/40/eaba5714. [PMID: 33008904 PMCID: PMC7852393 DOI: 10.1126/sciadv.aba5714] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 08/21/2020] [Indexed: 05/03/2023]
Abstract
Proteomic profiling of circulating small extracellular vesicles (sEVs) represents a promising, noninvasive approach for early detection and therapeutic monitoring of breast cancer (BC). We describe a relatively low-cost, fast, and reliable method to isolate sEVs from plasma of BC patients and analyze their protein content by semiquantitative proteomics. sEV-enriched fractions were isolated from plasma of healthy controls and BC patients at different disease stages before and after surgery. Proteomic analysis of sEV-enriched fractions using reverse phase protein array revealed a signature of seven proteins that differentiated BC patients from healthy individuals, of which FAK and fibronectin displayed high diagnostic accuracy. The size of sEVs was significantly reduced in advanced disease stage, concomitant with a stage-specific protein signature. Furthermore, we observed protein-based distinct clusters of healthy controls, chemotherapy-treated and untreated postsurgery samples, as well as a predictor of high risk of cancer relapse, suggesting that the applied methods warrant development for advanced diagnostics.
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Affiliation(s)
- Yaron Vinik
- Weizmann Institute of Science, Rehovot, Israel
| | | | | | - Yilling Lu
- MD Anderson Cancer Center, Houston, TX 77030, USA
| | | | | | | | | | - Sima Lev
- Weizmann Institute of Science, Rehovot, Israel.
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27
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Zhou W, Zhang L, Chen P, Li S, Cheng Y. Thymine DNA glycosylase-regulated TAZ promotes radioresistance by targeting nonhomologous end joining and tumor progression in esophageal cancer. Cancer Sci 2020; 111:3613-3625. [PMID: 32808385 PMCID: PMC7541017 DOI: 10.1111/cas.14622] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 12/16/2022] Open
Abstract
Radiation resistance is a major cause of esophageal cancer relapse or metastasis. Transcriptional coactivator with PDZ binding domain (TAZ) is a final effector of the Hippo signaling pathway and plays critical roles in several types of cancer, but how it participates in the progression and radiation resistance of esophageal cancer remains unclear. Here, we revealed that TAZ was the strongest prognostic factor among Hippo pathway members. Overexpression of TAZ predicted poor outcome and adverse pathological features. In cell and animal models, TAZ facilitated cell proliferation, motility, and radiation resistance. Additionally, TAZ promoted expression of nonhomologous end joining (NHEJ)‐related genes, which are the main contributors to repair irradiation‐induced DNA breaks and result in radiation resistance. Amplification of the TAZ gene occurred in 2.5%‐3.2% of esophageal cancers. In addition, the CpG islands of the TAZ gene were demethylated in esophageal cancer under thymine DNA glycosylase (TDG) regulation. Knockdown of TDG inhibited cell growth, motility, and radiation resistance, which were overridden by TAZ overexpression. Collectively, these findings suggest that the TDG/TAZ/NHEJ axis is a critical player in esophageal cancer progression and radiation resistance, as well as a potential target for radiotherapy.
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Affiliation(s)
- Wei Zhou
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Lin Zhang
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Pengxiang Chen
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Song Li
- Department of Medical Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, Jinan, China
| | - Yufeng Cheng
- Department of Radiation Oncology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, Jinan, China
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28
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Liu W, Lu X, Shi P, Yang G, Zhou Z, Li W, Mao X, Jiang D, Chen C. TNF-α increases breast cancer stem-like cells through up-regulating TAZ expression via the non-canonical NF-κB pathway. Sci Rep 2020; 10:1804. [PMID: 32019974 PMCID: PMC7000832 DOI: 10.1038/s41598-020-58642-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 01/15/2020] [Indexed: 12/18/2022] Open
Abstract
Breast cancer patients often suffer from disease relapse and metastasis due to the presence of breast cancer stem-like cells (BCSCs). Numerous studies have reported that high levels of inflammatory factors, including tumor necrosis factor alpha (TNF-α), promote BCSCs. However, the mechanism by which TNF-α promotes BCSCs is unclear. In this study, we demonstrate that TNF-α up-regulates TAZ, a transcriptional co-activator promoting BCSC self-renewal capacity in human breast cancer cell lines. Depletion of TAZ abrogated the increase in BCSCs mediated by TNF-α. TAZ is induced by TNF-α through the non-canonical NF-κB pathway, and our findings suggest that TAZ plays a crucial role in inflammatory factor-promoted breast cancer stemness and could serve as a promising therapeutic target.
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Affiliation(s)
- Wenjing Liu
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China
- University of the Chinese Academy of Sciences, Beijing, 101407, China
- Medical Faculty of Kunming University of Science and Technology, Kunming, Yunnan, 650500, China
| | - Xiaoqing Lu
- Department of breast surgery, The second hospital of Shanxi medical University, Taiyuan, 030071, China
| | - Peiguo Shi
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China
| | - Guangxi Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China
| | - Zhongmei Zhou
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China
| | - Wei Li
- Medical Faculty of Kunming University of Science and Technology, Kunming, Yunnan, 650500, China
- Department of Urology of the First People's Hospital of Yunnan Province, Kunming, 650032, China
| | - Xiaoyun Mao
- Breast surgery, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.
| | - Dewei Jiang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China.
| | - Ceshi Chen
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China.
- KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China.
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29
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Transcriptional Coactivator TAZ Negatively Regulates Tumor Suppressor p53 Activity and Cellular Senescence. Cells 2020; 9:cells9010171. [PMID: 31936650 PMCID: PMC7016652 DOI: 10.3390/cells9010171] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/31/2019] [Accepted: 01/08/2020] [Indexed: 12/14/2022] Open
Abstract
Transcriptional coactivator with a PDZ-binding motif (TAZ) is one of the mammalian orthologs of Drosophila Yorkie, a transcriptional coactivator of the Hippo pathway. TAZ has been suggested to function as a regulator that modulates the expression of cell proliferation and anti-apoptotic genes in order to stimulate cell proliferation. TAZ has also been associated with a poor prognosis in several cancers, including breast cancer. However, the physiological role of TAZ in tumorigenesis remains unclear. We herein demonstrated that TAZ negatively regulated the activity of the tumor suppressor p53. The overexpression of TAZ down-regulated p53 transcriptional activity and its downstream gene expression. In contrast, TAZ knockdown up-regulated p21 expression induced by p53 activation. Regarding the underlying mechanism, TAZ inhibited the interaction between p53 and p300 and suppressed the p300-mediated acetylation of p53. Furthermore, TAZ knockdown induced cellular senescence in a p53-dependent manner. These results suggest that TAZ negatively regulates the tumor suppressor functions of p53 and attenuates p53-mediated cellular senescence.
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30
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Escoll M, Lastra D, Pajares M, Robledinos-Antón N, Rojo AI, Fernández-Ginés R, Mendiola M, Martínez-Marín V, Esteban I, López-Larrubia P, Gargini R, Cuadrado A. Transcription factor NRF2 uses the Hippo pathway effector TAZ to induce tumorigenesis in glioblastomas. Redox Biol 2020; 30:101425. [PMID: 31918259 PMCID: PMC7016245 DOI: 10.1016/j.redox.2019.101425] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/22/2019] [Accepted: 12/31/2019] [Indexed: 11/29/2022] Open
Abstract
Transcription factor NRF2 orchestrates a cellular defense against oxidative stress and, so far, has been involved in tumor progression by providing a metabolic adaptation to tumorigenic demands and resistance to chemotherapeutics. In this study, we discover that NRF2 also propels tumorigenesis in gliomas and glioblastomas by inducing the expression of the transcriptional co-activator TAZ, a protein of the Hippo signaling pathway that promotes tumor growth. The expression of the genes encoding NRF2 (NFE2L2) and TAZ (WWTR1) showed a positive correlation in 721 gliomas from The Cancer Genome Atlas database. Moreover, NRF2 and TAZ protein levels also correlated in immunohistochemical tissue arrays of glioblastomas. Genetic knock-down of NRF2 decreased, while NRF2 overexpression or chemical activation with sulforaphane, increased TAZ transcript and protein levels. Mechanistically, we identified several NRF2-regulated functional enhancers in the regulatory region of WWTR1. The relevance of the new NRF2/TAZ axis in tumorigenesis was demonstrated in subcutaneous and intracranial grafts. Thus, intracranial inoculation of NRF2-depleted glioma stem cells did not develop tumors as determined by magnetic resonance imaging. Forced TAZ overexpression partly rescued both stem cell growth in neurospheres and tumorigenicity. Hence, NRF2 not only enables tumor cells to be competent to proliferate but it also propels tumorigenesis by activating the TAZ-mediated Hippo transcriptional program. Expression of NRF2 and TAZ positively correlate in gliomas and glioblastomas. NRF2 regulates the expression of WWTR1 encoding the transcription co-activator TAZ in glioma stem cells. TAZ provides a redox-independent mechanism of NRF2 induction of glioblastomas. Downregulation of the new NRF2/TAZ axis may provide a novel therapy for glioblastomas.
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Affiliation(s)
- Maribel Escoll
- Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Spain; Instituto de Investigación Sanitaria La Paz (IdiPaz), Spain; Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain
| | - Diego Lastra
- Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Spain; Instituto de Investigación Sanitaria La Paz (IdiPaz), Spain; Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain
| | - Marta Pajares
- Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Spain; Instituto de Investigación Sanitaria La Paz (IdiPaz), Spain; Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain
| | - Natalia Robledinos-Antón
- Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Spain; Instituto de Investigación Sanitaria La Paz (IdiPaz), Spain; Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain
| | - Ana I Rojo
- Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Spain; Instituto de Investigación Sanitaria La Paz (IdiPaz), Spain; Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain
| | - Raquel Fernández-Ginés
- Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Spain; Instituto de Investigación Sanitaria La Paz (IdiPaz), Spain; Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain
| | - Marta Mendiola
- Laboratory of Pathology and Translational Oncology, Instituto de Investigación Sanitaria La Paz (IdiPaz), Madrid, Spain
| | - Virginia Martínez-Marín
- Department of Pathology, Instituto de Investigación Sanitaria La Paz (IdiPaz), Madrid, Spain
| | - Isabel Esteban
- Department of Pathology, Instituto de Investigación Sanitaria La Paz (IdiPaz), Madrid, Spain
| | - Pilar López-Larrubia
- Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Spain; Instituto de Investigación Sanitaria La Paz (IdiPaz), Spain
| | - Ricardo Gargini
- Centro de Biología Molecular "Severo Ochoa" UAM-CSIC, Autonomous University of Madrid, Madrid, Spain
| | - Antonio Cuadrado
- Instituto de Investigaciones Biomédicas "Alberto Sols" UAM-CSIC, Spain; Instituto de Investigación Sanitaria La Paz (IdiPaz), Spain; Department of Biochemistry, Faculty of Medicine, Autonomous University of Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), ISCIII, Madrid, Spain.
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Abstract
Pancreatic ductal adenocarcinoma (PDAC) is predicted to become the second leading cause of death of patients with malignant cancers by 2030. Current options of PDAC treatment are limited and the five-year survival rate is less than 8%, leading to an urgent need to explore innovatively therapeutic strategies. PDAC cells exhibit extensively reprogrammed metabolism to meet their energetic and biomass demands under extremely harsh conditions. The metabolic changes are closely linked to signaling triggered by activation of oncogenes like KRAS as well as inactivation of tumor suppressors. Furthermore, tumor microenvironmental factors including extensive desmoplastic stroma reaction result in series of metabolism remodeling to facilitate PDAC development. In this review, we focus on the dysregulation of metabolism in PDAC and its surrounding microenvironment to explore potential metabolic targets in PDAC therapy.
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Affiliation(s)
- Jin-Tao Li
- Fudan University Shanghai Cancer Center and Cancer Metabolism Laboratory, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Yi-Ping Wang
- Fudan University Shanghai Cancer Center and Cancer Metabolism Laboratory, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Miao Yin
- Fudan University Shanghai Cancer Center and Cancer Metabolism Laboratory, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Qun-Ying Lei
- Fudan University Shanghai Cancer Center and Cancer Metabolism Laboratory, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China.,Lead Contact
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32
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A one-step tRNA-CRISPR system for genome-wide genetic interaction mapping in mammalian cells. Sci Rep 2019; 9:14499. [PMID: 31601883 PMCID: PMC6787096 DOI: 10.1038/s41598-019-51090-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 09/25/2019] [Indexed: 12/14/2022] Open
Abstract
Mapping genetic interactions in mammalian cells is limited due to technical obstacles. Here we describe a method called TCGI (tRNA-CRISPR for genetic interactions) to generate a high-efficient, barcode-free and scalable pairwise CRISPR libraries in mammalian cells for identifying genetic interactions. We have generated a genome- wide library to identify genes genetically interacting with TAZ in cell viability regulation. Validation of candidate synergistic genes reveals the screening accuracy of 85% and TAZ-MCL1 is characterized as combinational drug targets for non-small cell lung cancer treatments. TCGI has dramatically improved the current methods for mapping genetic interactions and screening drug targets for combinational therapies.
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33
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Zhou W, Weng J, Wu K, Xu X, Wang H, Zhang J, Zhao C, Yang J, Zhang Y, Shen W. Silencing of TAZ inhibits the motility of hepatocellular carcinoma cells through autophagy induction. Cancer Manag Res 2019; 11:8743-8753. [PMID: 31576176 PMCID: PMC6769033 DOI: 10.2147/cmar.s215466] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 08/22/2019] [Indexed: 12/12/2022] Open
Abstract
Purpose The aim of the present study was to investigate the effect of knockdown and knockout of the transcriptional co-activator with PDZ-binding motif (TAZ) on the migration, invasion and autophagy of the hepatocellular carcinoma (HCC) cell lines, as well as the functional connection between the autophagy and cell migratory processes induced by loss of TAZ in HCC cell lines. Methods HCC cell lines SMMC-7721 and SK-HEP1 stably knockdown and knockout of TAZ were established by the lentiviral-mediated TAZ knockdown and knockout approaches. Reverse transcription-quantitative real-time polymerase chain reaction and Western blotting were performed to examine the expression of TAZ and indicated genes in downstream pathways in HCC cell lines. Transwell assay and autophagic flux assay were used to evaluate the effect of TAZ knockdown and knockout on the motility and the autophagy of HCC cell lines. Results We initially found that TAZ exhibited highly abundant and was expressed predominantly in HCC cell lines with different spontaneous metastatic potential. Through performing loss-of-function assays, we demonstrated that both TAZ knockdown and knockout promoted HCC cell autophagy and reduced HCC cell migration, invasion and epithelial-to-mesenchymal transition. In addition, autophagy inhibition in TAZ knockdown and knockout SMMC-7721 and SK-HEP1 cells in the presence of 3-methyladenine or chloroquine partially abrogated the migratory and invasive ability induced by TAZ knockdown and knockout. Conclusion Our findings indicated that loss of TAZ in HCC cells suppressed cell motility probably via altering the autophagy, suggesting that TAZ emerges as an important target in regulating cell motility and autophagy in HCC cells, and blocking TAZ may be a novel therapeutic strategy against HCC.
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Affiliation(s)
- Wei Zhou
- Department of Cell Biology, School of Medicine of Yangzhou University, Yangzhou, People's Republic of China.,Department of Internal Medicine, Affiliated Hospital of Yangzhou University, Yangzhou, People's Republic of China
| | - Jiachun Weng
- Department of Cell Biology, School of Medicine of Yangzhou University, Yangzhou, People's Republic of China
| | - Keyan Wu
- Department of Cell Biology, School of Medicine of Yangzhou University, Yangzhou, People's Republic of China.,Department of Internal Medicine, Affiliated Hospital of Yangzhou University, Yangzhou, People's Republic of China
| | - Xiao Xu
- Department of Cell Biology, School of Medicine of Yangzhou University, Yangzhou, People's Republic of China
| | - Hui Wang
- Department of Cell Biology, School of Medicine of Yangzhou University, Yangzhou, People's Republic of China
| | - Jing Zhang
- Department of Internal Medicine, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou, People's Republic of China
| | - Chengxue Zhao
- Department of Cell Biology, School of Medicine of Yangzhou University, Yangzhou, People's Republic of China
| | - Jie Yang
- Department of Cell Biology, School of Medicine of Yangzhou University, Yangzhou, People's Republic of China
| | - Yu Zhang
- Department of Cell Biology, School of Medicine of Yangzhou University, Yangzhou, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, People's Republic of China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, People's Republic of China
| | - Weigan Shen
- Department of Cell Biology, School of Medicine of Yangzhou University, Yangzhou, People's Republic of China.,Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, People's Republic of China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, People's Republic of China
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Ding Y, He J, Huang J, Yu T, Shi X, Zhang T, Yan G, Chen S, Peng C. Harmine induces anticancer activity in breast cancer cells via targeting TAZ. Int J Oncol 2019; 54:1995-2004. [PMID: 31081045 PMCID: PMC6521938 DOI: 10.3892/ijo.2019.4777] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 03/27/2019] [Indexed: 12/21/2022] Open
Abstract
Harmine (HM) is a β-carboline alkaloid found in multiple medicinal plants. It has been used in folk medicine for anticancer therapy; however, the molecular mechanism of HM on human breast cancer remains unclear. Transcriptional co-activator with PDZ-binding motif (TAZ), also known as WW domain-containing transcription regulator 1, serves an important role in the carcinogenesis and progression of breast cancer. The aim of the present study was to elucidate the potential anticancer activity and mechanism of HM in breast cancer, in vitro and in vivo. Cell proliferation was measured using a CCK-8 assay, apoptotic activity was detected by flow cytometry and DAPI staining, and cell migration was examined using a wound healing assay. The expression of proteins, including extracellular signal-regulate kinase (Erk), phosphorylated (p-) Erk, protein kinase B (Akt), p-Akt, B-cell lymphoma 2 (Bcl-2) and Bcl-2-associated X protein (Bax), were determined by western blotting. The mRNA expression of TAZ was detected using reverse transcription-quantitative polymerase chain reaction analysis. The expression of proteins in mouse tumor tissues were examined by immunohistochemistry. HM significantly suppressed cellular proliferation and migration, promoted apoptosis in vitro and inhibited tumor growth in vivo. In addition, HM significantly decreased the expression of TAZ, p-Erk, p-Akt and Bcl-2, but increased that of Bax. The overexpression of TAZ in breast cancer cells inhibited the antitumor effect of HM. In conclusion, HM was found to induce apoptosis and prevent the proliferation and migration of human breast cancer cell lines, possibly via the downregulation of TAZ.
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Affiliation(s)
- Yu Ding
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Jinrong He
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Juan Huang
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Tong Yu
- Department of Traditional Chinese Medicine, Humanwell Healthcare (Group) Co., Ltd., Wuhan, Hubei 430075, P.R. China
| | - Xiaoyan Shi
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Tianzhu Zhang
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Ge Yan
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Shanshan Chen
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Caixia Peng
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
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35
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Yi X, Yu J, Ma C, Dong G, Shi W, Li H, Li L, Luo L, Sampath K, Ruan H, Huang H. The effector of Hippo signaling, Taz, is required for formation of the micropyle and fertilization in zebrafish. PLoS Genet 2019; 15:e1007408. [PMID: 30608921 PMCID: PMC6334976 DOI: 10.1371/journal.pgen.1007408] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 01/16/2019] [Accepted: 12/10/2018] [Indexed: 11/18/2022] Open
Abstract
The mechanisms that ensure fertilization of egg by a sperm are not fully understood. In all teleosts, a channel called the 'micropyle' is the only route of entry for sperm to enter and fertilize the egg. The micropyle forms by penetration of the vitelline envelope by a single specialized follicle cell, the micropylar cell. The mechanisms underlying micropylar cell specification and micropyle formation are poorly understood. Here, we show that an effector of the Hippo signaling pathway, the Transcriptional co-activator with a PDZ-binding domain (Taz), plays crucial roles in micropyle formation and fertilization in zebrafish (Danio rerio). Genome editing mutants affecting taz can grow to adults. However, eggs from homozygous taz females are not fertilized even though oocytes in mutant females are histologically normal with intact animal-vegetal polarity, complete meiosis and proper ovulation. We find that taz mutant eggs have no micropyle. Taz protein is specifically enriched in mid-oogenesis in the micropylar cell located at the animal pole of wild type oocyte, where it might regulate the cytoskeleton. Taz protein and micropylar cells are not detected in taz mutant ovaries. Our work identifies a novel role for the Hippo/Taz pathway in micropylar cell specification in zebrafish, and uncovers the molecular basis of micropyle formation in teleosts.
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Affiliation(s)
- Xiaogui Yi
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Beibei, Chongqing, China
| | - Jia Yu
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Beibei, Chongqing, China
| | - Chao Ma
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Beibei, Chongqing, China
| | - Guoping Dong
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Beibei, Chongqing, China
| | - Wenpeng Shi
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Beibei, Chongqing, China
| | - Hongtao Li
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Beibei, Chongqing, China
| | - Li Li
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Beibei, Chongqing, China
| | - Lingfei Luo
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Beibei, Chongqing, China
| | - Karuna Sampath
- Cell & Developmental Biology Unit, Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Hua Ruan
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Beibei, Chongqing, China
| | - Honghui Huang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, State Key Laboratory Breeding Base of Eco-Environments and Bio-Resources of the Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Beibei, Chongqing, China
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36
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Hypoxia-inducible factors promote breast cancer stem cell specification and maintenance in response to hypoxia or cytotoxic chemotherapy. Adv Cancer Res 2019; 141:175-212. [PMID: 30691683 DOI: 10.1016/bs.acr.2018.11.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Clinical studies have revealed that breast cancers contain regions of intratumoral hypoxia (reduced oxygen availability), which activates hypoxia-inducible factors (HIFs). The relationship between intratumoral hypoxia, distant metastasis and cancer mortality has been well established. A major mechanism by which intratumoral hypoxia contributes to disease progression is through induction of the breast cancer stem cell (BCSC) phenotype. BCSCs are a small subpopulation of cells with the capability for self-renewal. BCSCs have been implicated in resistance to chemotherapy, disease recurrence, and metastasis. In this review, we will discuss our current understanding of the molecular mechanisms underlying HIF-dependent induction of the BCSC phenotype in response to hypoxia or chemotherapy.
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Metformin Decreases the Incidence of Pancreatic Ductal Adenocarcinoma Promoted by Diet-induced Obesity in the Conditional KrasG12D Mouse Model. Sci Rep 2018; 8:5899. [PMID: 29651002 PMCID: PMC5897574 DOI: 10.1038/s41598-018-24337-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 03/27/2018] [Indexed: 12/14/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a particularly deadly disease. Chronic conditions, including obesity and type-2 diabetes are risk factors, thus making PDAC amenable to preventive strategies. We aimed to characterize the chemo-preventive effects of metformin, a widely used anti-diabetic drug, on PDAC development using the KrasG12D mouse model subjected to a diet high in fats and calories (HFCD). LSL-KrasG12D/+;p48-Cre (KC) mice were given control diet (CD), HFCD, or HFCD with 5 mg/ml metformin in drinking water for 3 or 9 months. After 3 months, metformin prevented HFCD-induced weight gain, hepatic steatosis, depletion of intact acini, formation of advanced PanIN lesions, and stimulation of ERK and mTORC1 in pancreas. In addition to reversing hepatic and pancreatic histopathology, metformin normalized HFCD-induced hyperinsulinemia and hyperleptinemia among the 9-month cohort. Importantly, the HFCD-increased PDAC incidence was completely abrogated by metformin (p < 0.01). The obesogenic diet also induced a marked increase in the expression of TAZ in pancreas, an effect abrogated by metformin. In conclusion, administration of metformin improved the metabolic profile and eliminated the promoting effects of diet-induced obesity on PDAC formation in KC mice. Given the established safety profile of metformin, our findings have a strong translational potential for novel chemo-preventive strategies for PDAC.
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38
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Park HJ, Kim S, Li W. Model-based analysis of competing-endogenous pathways (MACPath) in human cancers. PLoS Comput Biol 2018; 14:e1006074. [PMID: 29565967 PMCID: PMC5882149 DOI: 10.1371/journal.pcbi.1006074] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 04/03/2018] [Accepted: 03/06/2018] [Indexed: 01/24/2023] Open
Abstract
Competing endogenous RNA (ceRNA) has emerged as an important post-transcriptional mechanism that simultaneously alters expressions of thousands genes in cancers. However, only a few ceRNA genes have been studied for their functions to date. To understand the major biological functions of thousands ceRNA genes as a whole, we designed Model-based Analysis of Competing-endogenous Pathways (MACPath) to infer pathways co-regulated through ceRNA mechanism (cePathways). Our analysis on breast tumors suggested that NGF (nerve growth factor)-induced tumor cell proliferation might be associated with tumor-related growth factor pathways through ceRNA. MACPath also identified indirect cePathways, whose ceRNA relationship is mediated by mediating ceRNAs. Finally, MACPath identified mediating ceRNAs that connect the indirect cePathways based on efficient integer linear programming technique. Mediating ceRNAs are unexpectedly enriched in tumor suppressor genes, whose down-regulation is suspected to disrupt indirect cePathways, such as between DNA replication and WNT signaling pathways. Altogether, MACPath is the first computational method to comprehensively understand functions of thousands ceRNA genes, both direct and indirect, at the pathway level.
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Affiliation(s)
- Hyun Jung Park
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- * E-mail: (HJP); (WL)
| | - Soyeon Kim
- Center for Precision Health, School of Biomedical Informatics, University of Texas Health Science Center, Houston, Texas, United States of America
| | - Wei Li
- Division of Biostatistics, Dan L Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, United States of America
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
- * E-mail: (HJP); (WL)
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39
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Sánchez-Duffhues G, García de Vinuesa A, Ten Dijke P. Endothelial-to-mesenchymal transition in cardiovascular diseases: Developmental signaling pathways gone awry. Dev Dyn 2017; 247:492-508. [PMID: 28891150 DOI: 10.1002/dvdy.24589] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 08/30/2017] [Accepted: 08/30/2017] [Indexed: 01/05/2023] Open
Abstract
The process named endothelial-to-mesenchymal transition (EndMT) was observed for the first time during the development of the chicken embryo several decades ago. Of interest, accumulating evidence suggests that EndMT plays a critical role in the onset and progression of multiple postnatal cardiovascular diseases. EndMT is controlled by a set of developmental signaling pathways, very similar to the process of epithelial-to-mesenchymal transition, which determine the activity of several EndMT transcriptional effectors. Once activated, these EndMT effectors regulate the expression of endothelial- and mesenchymal-specific genes, in part by interacting with specific motifs in promoter regions, eventually leading to the down-regulation of endothelial-specific features and acquisition of a fibroblast-like phenotype. Important technical advances in lineage tracing methods combined with experimental mouse models demonstrated the pathophysiological importance of EndMT for human diseases. In this review, we discuss the major signal transduction pathways involved in the activation and regulation of the EndMT program. Furthermore, we will review the latest discoveries on EndMT, focusing on cardiovascular diseases, and in particular on its role in vascular calcification, pulmonary arterial hypertension, and organ fibrosis. Developmental Dynamics 247:492-508, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Gonzalo Sánchez-Duffhues
- Department of Molecular Cell Biology and Cancer Genomics Centre Netherlands, Leiden University Medical Center, The Netherlands
| | - Amaya García de Vinuesa
- Department of Molecular Cell Biology and Cancer Genomics Centre Netherlands, Leiden University Medical Center, The Netherlands
| | - Peter Ten Dijke
- Department of Molecular Cell Biology and Cancer Genomics Centre Netherlands, Leiden University Medical Center, The Netherlands
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40
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Hippo pathway contributes to cisplatin resistant-induced EMT in nasopharyngeal carcinoma cells. Cell Cycle 2017; 16:1601-1610. [PMID: 28749195 DOI: 10.1080/15384101.2017.1356508] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a kind of head-neck malignant tumor derived from the nasopharyngeal epithelium and is mainly prevalent in Southern China and Southeast Asia countries. Cisplatin (DDP) provides the first-line therapeutic administration in NPC patients. However, chemoresistance has been a main barrier and caused bad treatment outcome in NPC therapy. To understand the molecular mechanism of acquired resistance to DDP, multiple methods were performed to examine the morphocytology and molecular changes in DDP-resistant NPC cells. We found that drug resistance cells displayed epithelial-mesenchymal transition (EMT) characteristics. DDP-resistant NPC cells exhibited enhanced migration and invasion potential. Moreover, overexpression of TAZ, one key gene in Hippo pathway, is closely associated with the DDP resistance of NPC cells and its EMT properties. Depletion of TAZ in DDP-resistant cells reversed EMT phenotypes to MET characteristics and restored chemosensitivity of DDP-resistant cells to DDP treatment. These results suggest that inactivation of TAZ could be a promising approach for the treatment of NPC patients.
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41
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Budna J, Bryja A, Celichowski P, Kahan R, Kranc W, Ciesiółka S, Rybska M, Borys S, Jeseta M, Bukowska D, Antosik P, Brüssow KP, Bruska M, Nowicki M, Zabel M, Kempisty B. Genes of cellular components of morphogenesis in porcine oocytes before and after IVM. Reproduction 2017; 154:535-545. [PMID: 28733345 DOI: 10.1530/rep-17-0367] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 07/04/2017] [Accepted: 07/21/2017] [Indexed: 12/13/2022]
Abstract
Proper oocyte maturation in mammals produces an oocyte capable of monospermic fertilization and embryo preimplantation. The cumulus-oocyte complexes (COCs), surrounding an oocyte, play a significant role in oocyte maturation. During this process, when the COCs undergo cumulus expansion wherein tightly compact cumulus cells (CCs) form a dispersed structure, permanent biochemical and molecular modifications occur in the maturing oocytes, indicating that the gene expression between immature and mature oocytes differs significantly. This study focuses on the genes responsible for the cellular components of morphogenesis within the developing oocyte. Brilliant cresyl blue (BCB) was used to determine the developmental capability of porcine oocytes. The immature oocytes (GV stage) were compared with matured oocytes (MII stage), using microarray and qRT-PCR analysis to track changes in the genetic expression profile of transcriptome genes. The data showed substantial upregulation of genes influencing oocyte's morphology, cellular migration and adhesion, intracellular communication, as well as plasticity of nervous system. Conversely, downregulation involved genes related to microtubule reorganization, regulation of adhesion, proliferation, migration and cell differentiation processes in oocytes. This suggests that most genes recruited in morphogenesis in porcine oocyte in vitro, may have cellular maturational capability, since they have a higher level of expression before the oocyte's matured form. It shows the process of oocyte maturation and developmental capacity is orchestrated by significant cellular modifications during morphogenesis.
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Affiliation(s)
- Joanna Budna
- Department of Histology and EmbryologyPoznan University of Medical Sciences, Poznan, Poland
| | - Artur Bryja
- Department of AnatomyPoznan University of Medical Sciences, Poznan, Poland
| | - Piotr Celichowski
- Department of Histology and EmbryologyPoznan University of Medical Sciences, Poznan, Poland
| | - Rotem Kahan
- Department of AnatomyPoznan University of Medical Sciences, Poznan, Poland
| | - Wiesława Kranc
- Department of AnatomyPoznan University of Medical Sciences, Poznan, Poland
| | - Sylwia Ciesiółka
- Department of Histology and EmbryologyPoznan University of Medical Sciences, Poznan, Poland
| | - Marta Rybska
- Institute of Veterinary SciencesPoznan University of Life Sciences, Poznan, Poland
| | - Sylwia Borys
- Department of AnatomyPoznan University of Medical Sciences, Poznan, Poland
| | - Michal Jeseta
- Department of Obstetrics and GynecologyUniversity Hospital and Masaryk University, Brno, Czech Republic
| | - Dorota Bukowska
- Institute of Veterinary SciencesPoznan University of Life Sciences, Poznan, Poland
| | - Paweł Antosik
- Institute of Veterinary SciencesPoznan University of Life Sciences, Poznan, Poland
| | - Klaus P Brüssow
- Department of AnatomyPoznan University of Medical Sciences, Poznan, Poland
| | - Małgorzata Bruska
- Department of AnatomyPoznan University of Medical Sciences, Poznan, Poland
| | - Michał Nowicki
- Department of Histology and EmbryologyPoznan University of Medical Sciences, Poznan, Poland
| | - Maciej Zabel
- Department of Histology and EmbryologyPoznan University of Medical Sciences, Poznan, Poland.,Department of Histology and EmbryologyWroclaw Medical University, Wroclaw, Poland
| | - Bartosz Kempisty
- Department of Histology and EmbryologyPoznan University of Medical Sciences, Poznan, Poland .,Department of AnatomyPoznan University of Medical Sciences, Poznan, Poland.,Department of Obstetrics and GynecologyUniversity Hospital and Masaryk University, Brno, Czech Republic
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