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Mokhtari RB, Ashayeri N, Baghaie L, Sambi M, Satari K, Baluch N, Bosykh DA, Szewczuk MR, Chakraborty S. The Hippo Pathway Effectors YAP/TAZ-TEAD Oncoproteins as Emerging Therapeutic Targets in the Tumor Microenvironment. Cancers (Basel) 2023; 15:3468. [PMID: 37444578 DOI: 10.3390/cancers15133468] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/21/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Various cancer cell-associated intrinsic and extrinsic inputs act on YAP/TAZ proteins to mediate the hyperactivation of the TEAD transcription factor-based transcriptome. This YAP/TAZ-TEAD activity can override the growth-limiting Hippo tumor-suppressor pathway that maintains normal tissue homeostasis. Herein, we provide an integrated summary of the contrasting roles of YAP/TAZ during normal tissue homeostasis versus tumor initiation and progression. In addition to upstream factors that regulate YAP/TAZ in the TME, critical insights on the emerging functions of YAP/TAZ in immune suppression and abnormal vasculature development during tumorigenesis are illustrated. Lastly, we discuss the current methods that intervene with the YAP/TAZ-TEAD oncogenic signaling pathway and the emerging applications of combination therapies, gut microbiota, and epigenetic plasticity that could potentiate the efficacy of chemo/immunotherapy as improved cancer therapeutic strategies.
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Affiliation(s)
- Reza Bayat Mokhtari
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Neda Ashayeri
- Division of Hematology and Oncology, Department of Pediatrics, Ali-Asghar Children Hospital, Iran University of Medical Science, Tehran 1449614535, Iran
| | - Leili Baghaie
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Manpreet Sambi
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Kosar Satari
- Division of Hematology and Oncology, Department of Pediatrics, Ali-Asghar Children Hospital, Iran University of Medical Science, Tehran 1449614535, Iran
| | - Narges Baluch
- Department of Immunology and Allergy, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Dmitriy A Bosykh
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Myron R Szewczuk
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Sayan Chakraborty
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
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2
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Jebeli M, Lopez SK, Goldblatt ZE, McCollum D, Mana-Capelli S, Wen Q, Billiar K. Multicellular aligned bands disrupt global collective cell behavior. Acta Biomater 2023; 163:117-130. [PMID: 36306982 PMCID: PMC10334361 DOI: 10.1016/j.actbio.2022.10.041] [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: 05/24/2022] [Revised: 10/10/2022] [Accepted: 10/19/2022] [Indexed: 11/29/2022]
Abstract
Mechanical stress patterns emerging from collective cell behavior have been shown to play critical roles in morphogenesis, tissue repair, and cancer metastasis. In our previous work, we constrained valvular interstitial cell (VIC) monolayers on circular protein islands to study emergent behavior in a controlled manner and demonstrated that the general patterns of cell alignment, size, and apoptosis correlate with predicted mechanical stress fields if radially increasing stiffness or contractility are used in the computational models. However, these radially symmetric models did not predict the existence of local regions of dense aligned cells observed in seemingly random locations of individual aggregates. The goal of this study is to determine how the heterogeneities in cell behavior emerge over time and diverge from the predicted collective cell behavior. Cell-cell interactions in circular multicellular aggregates of VICs were studied with time-lapse imaging ranging from hours to days, and migration, proliferation, and traction stresses were measured. Our results indicate that elongated cells create strong local alignment within preconfluent cell populations on the microcontact printed protein islands. These cells influence the alignment of additional cells to create dense, locally aligned bands of cells which disrupt the predicted global behavior. Cells are highly elongated at the endpoints of the bands yet have decreased spread area in the middle and reduced mobility. Although traction stresses at the endpoints of bands are enhanced, even to the point of detaching aggregates from the culture surface, the cells in dense bands exhibit reduced proliferation, less nuclear YAP, and increased apoptotic rates indicating a low stress environment. These findings suggest that strong local cell-cell interactions between primary fibroblastic cells can disrupt the global collective cellular behavior leading to substantial heterogeneity of cell behaviors in constrained monolayers. This local emergent behavior within aggregated fibroblasts may play an important role in development and disease of connective tissues. STATEMENT OF SIGNIFICANCE: Mechanical stress patterns emerging from collective cell behavior play critical roles in morphogenesis, tissue repair, and cancer metastasis. Much has been learned of these collective behaviors by utilizing microcontact printing to constrain cell monolayers (aggregates) into specific shapes. Here we utilize these tools along with long-term video microscopy tracking of individual aggregates to determine how heterogeneous collective behaviors unique to primary fibroblastic cells emerge over time and diverge from computed stress fields. We find that dense multicellular bands form from local collective behavior and disrupt the global collective behavior resulting in heterogeneous patterns of migration, traction stresses, proliferation, and apoptosis. This local emergent behavior within aggregated fibroblasts may play an important role in development and disease of connective tissues.
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Affiliation(s)
- Mahvash Jebeli
- Biomedical Engineering Department, Worcester Polytechnic Institute, Worcester MA, USA
| | - Samantha K Lopez
- Biomedical Engineering Department, Worcester Polytechnic Institute, Worcester MA, USA
| | - Zachary E Goldblatt
- Biomedical Engineering Department, Worcester Polytechnic Institute, Worcester MA, USA
| | - Dannel McCollum
- University of Massachusetts Medical School, Worcester MA, USA
| | | | - Qi Wen
- Physics Department, Worcester Polytechnic Institute, Worcester MA, USA
| | - Kristen Billiar
- Biomedical Engineering Department, Worcester Polytechnic Institute, Worcester MA, USA.
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Zhao Y, Zhang X, Wang G, Wu H, Chen R, Zhang Y, Yang S, Liu L. LXA4 inhibits TGF-β1-induced airway smooth muscle cells proliferation and migration by suppressing the Smad/YAP pathway. Int Immunopharmacol 2023; 118:110144. [PMID: 37030120 DOI: 10.1016/j.intimp.2023.110144] [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: 01/26/2023] [Revised: 03/29/2023] [Accepted: 03/31/2023] [Indexed: 04/10/2023]
Abstract
The aims of the present study were to examine the signaling mechanisms for transforming growth factor-β1 (TGF-β1)-induced rat airway smooth muscle cells (ASMCs) proliferation and migration and to determine the effect of lipoxin A4 (LXA4) on TGF-β1-induced rat ASMCs proliferation and migration and its underlying mechanisms. TGF-β1 upregulated transcriptional coactivator Yes-associated protein (YAP) expression by activating Smad2/3 and then upregulated cyclin D1, leading to rat ASMCs proliferation and migration. This effect was reversed after treatment with the TGF-β1 receptor inhibitor SB431542. YAP is a critical mediator of TGF-β1-induced ASMCs proliferation and migration. Knockdown of YAP disrupted the pro-airway remodeling function of TGF-β1. Preincubation of rat ASMCs with LXA4 blocked TGF-β1-induced activation of Smad2/3 and changed its downstream targets, YAP and cyclin D1, resulting in the inhibition of rat ASMCs proliferation and migration. Our study suggests that LXA4 suppresses Smad/YAP signaling to inhibit rat ASMCs proliferation and migration and therefore has potential value in the prevention and treatment of asthma by negatively modulating airway remodeling.
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Affiliation(s)
- Yali Zhao
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, No. 256, West Youyi Road, Xi'an, Shaanxi 710068, PR China
| | - Xiangli Zhang
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, No. 256, West Youyi Road, Xi'an, Shaanxi 710068, PR China
| | - Guizuo Wang
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, No. 256, West Youyi Road, Xi'an, Shaanxi 710068, PR China
| | - Hua Wu
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, No. 256, West Youyi Road, Xi'an, Shaanxi 710068, PR China
| | - Ruilin Chen
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, No. 256, West Youyi Road, Xi'an, Shaanxi 710068, PR China
| | - Yongqing Zhang
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, No. 256, West Youyi Road, Xi'an, Shaanxi 710068, PR China
| | - Shumei Yang
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, No. 256, West Youyi Road, Xi'an, Shaanxi 710068, PR China
| | - Lu Liu
- Department of Respiratory and Critical Care Medicine, Shaanxi Provincial People's Hospital, No. 256, West Youyi Road, Xi'an, Shaanxi 710068, PR China.
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Jia X, He L, Yang Z. Recent advances in the role of Yes-associated protein in dermatosis. Skin Res Technol 2023; 29:e13285. [PMID: 36973973 PMCID: PMC10155855 DOI: 10.1111/srt.13285] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 12/22/2022] [Indexed: 03/04/2023]
Abstract
BACKGROUND Dermatosis is a general term for diseases of the skin and skin appendages including scleroderma, psoriasis, bullous disease, atopic dermatitis, basal cell carcinoma, squamous cell carcinoma, and melanoma. These diseases affect millions of individuals globally and are a serious public health concern. However, the pathogenesis of skin diseases is not fully understood, and treatments are not optimal. Yes-associated protein (YAP) is a transcriptional coactivator that plays a role in the regulation of gene transcription and signal transduction. AIMS To study the role of Yes-associated protein in skin diseases. MATERIALS AND METHODS The present review summarizes recent advances in our understanding of the role of YAP in skin diseases, current treatments that target YAP, and potential avenues for novel therapies. RESULTS Abnormal YAP expression has been implicated in occurrence and development of dermatosis. YAP regulates the cell homeostasis, proliferation, differentiation, apoptosis, angiopoiesis, and epithelial-to-mesenchymal transition, among other processes. As well as, it serves as a potential target in many biological processes for treating dermatosis. CONCLUSIONS The effects of YAP on the skin are complex and require multidimensional investigational approaches. YAP functions as an oncoprotein that can promote the occurrence and development of cancer, but there is currently limited information on the therapeutic potential of YAP inhibition for cancer treatment. Additional studies are also needed to clarify the role of YAP in the development and maturation of dermal fibroblasts; skin barrier function, homeostasis, aging, and melanin production; and dermatosis.
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Affiliation(s)
- Xiaorong Jia
- Department of DermatologyThe First Affiliated Hospital of Kunming Medical UniversityKunmingChina
| | - Li He
- Department of DermatologyThe First Affiliated Hospital of Kunming Medical UniversityKunmingChina
| | - Zhi Yang
- Department of DermatologyThe First Affiliated Hospital of Kunming Medical UniversityKunmingChina
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Targeted Disruption of Lats1 and Lats2 in Mice Impairs Testis Development and Alters Somatic Cell Fate. Int J Mol Sci 2022; 23:ijms232113585. [DOI: 10.3390/ijms232113585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/11/2022] Open
Abstract
Hippo signaling plays an essential role in the development of numerous tissues. Although it was previously shown that the transcriptional effectors of Hippo signaling Yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) can fine-tune the regulation of sex differentiation genes in the testes, the role of Hippo signaling in testis development remains largely unknown. To further explore the role of Hippo signaling in the testes, we conditionally deleted the key Hippo kinases large tumor suppressor homolog kinases 1 and -2 (Lats1 and Lats2, two kinases that antagonize YAP and TAZ transcriptional co-regulatory activity) in the somatic cells of the testes using an Nr5a1-cre strain (Lats1flox/flox;Lats2flox/flox;Nr5a1-cre). We report here that early stages of testis somatic cell differentiation were not affected in this model but progressive testis cord dysgenesis was observed starting at gestational day e14.5. Testis cord dysgenesis was further associated with the loss of polarity of the Sertoli cells and the loss of SOX9 expression but not WT1. In parallel with testis cord dysgenesis, a loss of steroidogenic gene expression associated with the appearance of myofibroblast-like cells in the interstitial space was also observed in mutant animals. Furthermore, the loss of YAP phosphorylation, the accumulation of nuclear TAZ (and YAP) in both the Sertoli and interstitial cell populations, and an increase in their transcriptional co-regulatory activity in the testes suggest that the observed phenotype could be attributed at least in part to YAP and TAZ. Taken together, our results suggest that Hippo signaling is required to maintain proper differentiation of testis somatic cells.
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Liu S, Chen T, Chen B, Liu Y, Lu X, Li J. Lrpap1 deficiency leads to myopia through TGF-β-induced apoptosis in zebrafish. Cell Commun Signal 2022; 20:162. [PMID: 36261846 PMCID: PMC9580148 DOI: 10.1186/s12964-022-00970-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/03/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Frameshift mutations in LRPAP1 are responsible for autosomal recessive high myopia in human beings but its underlying mechanism remains elusive. This study aims to investigate the effect of LRPAP1 defect on ocular refractive development and its involved mechanism. METHODS A lrpap1 mutant zebrafish line with homozygous frameshift mutation was generated by CRISPR/Cas9 technology and confirmed by Sanger sequencing. The ocular refractive phenotype was analyzed by calculating the relative refractive error (RRE) with vivo photography and histological analysis at different development stages, together with examining ocular structure change via transmission electron microscopy. Further, RNA sequencing and bioinformatics analysis were performed. The potentially involved signaling pathway as well as the interacted protein were investigated in vivo. RESULTS The lrpap1 homozygous mutant zebrafish line showed myopic phenotype. Specifically, the mutant lines showed larger eye axial length-to-body length in one-month old individuals and a myopic shift with an RRE that changed after two months. Collagen fibers became thinning and disordered in the sclera. Further, RNA sequencing and bioinformatics analysis indicated that apoptosis signaling was activated in mutant line; this was further confirmed by acridine orange and TUNEL staining. Moreover, the expression of TGF-β protein was elevated in the mutant lines. Finally, the treatment of wild-type embryos with a TGF-β agonist aggravated the degree of eyeball apoptosis; conversely, the use of a TGF-β inhibitor mitigated apoptosis in mutant embryos. CONCLUSION The study provides functional evidence of a link between lrpap1 and myopia, suggesting that lrpap1 deficiency could lead to myopia through TGF-β-induced apoptosis signaling. Video abstract.
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Affiliation(s)
- Shanshan Liu
- grid.284723.80000 0000 8877 7471Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Ting Chen
- grid.284723.80000 0000 8877 7471Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Binghao Chen
- grid.459579.30000 0004 0625 057XDepartment of Orthopedics, Guangdong Women and Children Hospital, Guangzhou, China
| | - Yijun Liu
- grid.413107.0Department of Foot and Ankle Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Xiaohe Lu
- grid.284723.80000 0000 8877 7471Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jiali Li
- grid.284723.80000 0000 8877 7471Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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7
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Cui C, Zang N, Song J, Guo X, He Q, Hu H, Yang M, Wang Y, Yang J, Zou Y, Gao J, Wang L, Wang C, Liu F, He F, Hou X, Chen L. Exosomes derived from mesenchymal stem cells attenuate diabetic kidney disease by inhibiting cell apoptosis and epithelial-to-mesenchymal transition via miR-424-5p. FASEB J 2022; 36:e22517. [PMID: 36036527 DOI: 10.1096/fj.202200488r] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/27/2022] [Accepted: 08/15/2022] [Indexed: 12/14/2022]
Abstract
Diabetic kidney disease (DKD) is well-acknowledged as one of the most common complications in diabetes mellitus. Recent studies have demonstrated the promising role of mesenchymal stem cell-derived exosomes (MSC-exos) as a cell-free treatment strategy for DKD. The present study sought to investigate the therapeutic potential and the underlying mechanisms of MSC-exos in DKD. The authentication of MSC-exos was validated by western blot, transmission electron microscope (TEM), and nanosight tracking analysis (NTA). Apoptosis was detected by western blot, TUNEL staining, and flow cytometry. Epithelial-to-mesenchymal transition (EMT) was evaluated by western blot and immunofluorescence. The relationship between miR-424-5p and Yes-associated protein 1 (YAP1) was revealed by dual luciferase reporter assay. We observed that MSC-exos could attenuate DKD by decreasing cell apoptosis and inhibiting epithelial-to-mesenchymal transition (EMT) in diabetic kidneys in db/db mice. Besides, we documented that MSC-exos could reverse high glucose-induced apoptosis and EMT in HK2 cells. Interestingly, miR-424-5p derived from MSC-exos could inhibit YAP1 activation in HK2 cells, resulting in alleviation of high glucose-induced cell apoptosis and EMT. Our study provides novel insights into MSC-exos-mediated protective effect in DKD. MSC-exos could inhibit high glucose-induced apoptosis and EMT through miR-424-5p targeting of YAP1.
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Affiliation(s)
- Chen Cui
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Nan Zang
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jia Song
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xinghong Guo
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qin He
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Huiqing Hu
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Mengmeng Yang
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yuanqi Wang
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jingwen Yang
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ying Zou
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jing Gao
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lingshu Wang
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China.,Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China.,Jinan Clinical Research Center for Endocrine and Metabolic Disease, Jinan, China
| | - Chuan Wang
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China.,Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China.,Jinan Clinical Research Center for Endocrine and Metabolic Disease, Jinan, China
| | - Fuqiang Liu
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China.,Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China.,Jinan Clinical Research Center for Endocrine and Metabolic Disease, Jinan, China
| | - Falian He
- Nuolai Biomedical Technology Co., Ltd., Taian, China
| | - Xinguo Hou
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China.,Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China.,Jinan Clinical Research Center for Endocrine and Metabolic Disease, Jinan, China.,Department of Endocrinology, The Second Hospital of Shandong University, Jinan, China
| | - Li Chen
- Department of Endocrinology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Endocrine and Metabolic Diseases of Shandong University, Jinan, China.,Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan, China.,Jinan Clinical Research Center for Endocrine and Metabolic Disease, Jinan, China.,Nuolai Biomedical Technology Co., Ltd., Taian, China
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Naghdalipour M, Moradi N, Fadaei R, Rezghi Barez S, Sayyahfar S, Mokhtare M, Fard TK, Fallah S, Esteghamati A. Alteration of miR-21, miR-433 and miR-590 tissue expression related to the TGF-β signaling pathway in ulcerative colitis patients. Arch Physiol Biochem 2022; 128:1170-1174. [PMID: 32412349 DOI: 10.1080/13813455.2020.1762656] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Ulcerative colitis (UC) is an inflammatory disease, and studies have suggested a role for TGF-β signalling pathway in the pathogenesis of UC. In the present study, we evaluated expression of TGF-β signalling genes and their regulatory microRNAs in patients with UC and control subjects. The expression of TGF-β1, SMAD2, SMAD3, miR-21, miR-101, miR-433, and miR-590 were evaluated using real-time PCR in biopsy samples of the patients and controls. Results showed increased expression of TGF-β1 and SMAD3 in the patients compared to controls. In addition, miR-21 and miR-433 were found to be higher in the patients compared to controls; however, miR-590 was found to be lower. Moreover, miR-433 was demonstrated to have positive correlation with SMAD3 and TGF-β while miR-21 was positively correlated with TGF-β1. MiR-590 was negatively correlated with SMAD2 and SMAD3. Results of the present study suggested a role for TGF-β signalling pathway related microRNAs in pathogenesis of UC.
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Affiliation(s)
- Mehri Naghdalipour
- Research Center of Pediatric Infectious Diseases, Institute of Immunology and Infectious Diseases, Iran University of medical sciences, Tehran, Iran
| | - Nariman Moradi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
- Department of Clinical Biochemistry, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Reza Fadaei
- Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shekufe Rezghi Barez
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shirin Sayyahfar
- Research Center of Pediatric Infectious Diseases, Institute of Immunology and Infectious Diseases, Iran University of medical sciences, Tehran, Iran
| | - Marjan Mokhtare
- Colorectal Research Center, Iran university of medical sciences, Tehran, Iran
| | - Toktam Kazemi Fard
- Department of Clinical Biochemistry, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Soudabeh Fallah
- Department of Clinical Biochemistry, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Aboulreza Esteghamati
- Research Center of Pediatric Infectious Diseases, Institute of Immunology and Infectious Diseases, Iran University of medical sciences, Tehran, Iran
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9
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Baek SW, Mun JY, Jang IH, Yang GE, Jeong MS, Kim SK, Nam JK, Chu IS, Leem SH. YAP1 activation is associated with the progression and response to immunotherapy of non-muscle invasive bladder cancer. EBioMedicine 2022; 81:104092. [PMID: 35665684 PMCID: PMC9166372 DOI: 10.1016/j.ebiom.2022.104092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 05/19/2022] [Accepted: 05/19/2022] [Indexed: 02/03/2023] Open
Abstract
Background Despite the availability of several treatments for non-muscle-invasive bladder cancer (NMIBC), many patients are still not responsive to treatments, and the disease progresses. A new prognostic classifier can differentiate between treatment response and progression, and it could be used as a very important tool in patient decision-making regarding treatment options. In this study, we focused on the activation of Yes-associated protein 1 (YAP1), which is known to play a pivotal role in tumour progression and serves as a factor contributing to the mechanism of resistance to various relevant therapeutic agents. We further evaluated its potential as a novel prognostic agent. Methods We identified YAP1-associated gene signatures based on UC3-siYAP1 cells (n=8) and NMIBC cohort (n=460). Cross-validation was performed using 5 independent bladder cancer patient cohorts (n=1006). We also experimentally validated the changes of gene expression levels representing each subgroup. Findings The 976-gene signature based on YAP1-activation redefined three subgroups and had the benefits of Bacillus Calmette-Guérin (BCG) treatment in patients with NMIBC (hazard ratio 3.32, 95% CI 1.29-8.56, p = 0.01). The integrated analysis revealed that YAP1 activation was associated with the characterization of patients with high-risk NMIBC and the response to immunotherapy. Interpretation This study suggests that YAP1 activation has an important prognostic effect on bladder cancer progression and might be useful in the selection of immunotherapy. Funding A funding list that contributed to this research can be found in the Acknowledgements section.
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Affiliation(s)
- Seung-Woo Baek
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea; Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Jeong-Yeon Mun
- Department of Biomedical Sciences, Dong-A University, Busan 49315, Republic of Korea
| | - In-Hwan Jang
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea; Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Gi-Eun Yang
- Department of Biomedical Sciences, Dong-A University, Busan 49315, Republic of Korea; Department of Health Sciences, The Graduated of Dong-A University, Busan 49315, Republic of Korea
| | - Mi-So Jeong
- Department of Biomedical Sciences, Dong-A University, Busan 49315, Republic of Korea
| | - Seon-Kyu Kim
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Republic of Korea; Personalized Genomic Medicine Research Center, KRIBB, Daejeon 34141, Republic of Korea
| | - Jong-Kil Nam
- Department of Urology, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea
| | - In-Sun Chu
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea; Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Republic of Korea.
| | - Sun-Hee Leem
- Department of Biomedical Sciences, Dong-A University, Busan 49315, Republic of Korea; Department of Health Sciences, The Graduated of Dong-A University, Busan 49315, Republic of Korea.
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10
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Han Y, Wong FC, Wang D, Kahlert C. An In Silico Analysis Reveals an EMT-Associated Gene Signature for Predicting Recurrence of Early-Stage Lung Adenocarcinoma. Cancer Inform 2022; 21:11769351221100727. [PMID: 35645555 PMCID: PMC9133999 DOI: 10.1177/11769351221100727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 04/27/2022] [Indexed: 01/06/2023] Open
Abstract
Background: The potential micrometastasis tends to cause recurrence of lung adenocarcinoma (LUAD) after surgical resection and consequently leads to an increase in the mortality risk. Compelling evidence has suggested the underlying mechanisms of tumor metastasis could involve the activation of an epithelial-mesenchymal transition (EMT) program. Hence, the objective of this study was to develop an EMT-associated gene signature for predicting the recurrence of early-stage LUAD. Methods: The mRNA expression data of patients with early-stage LUAD were downloaded from Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) available databases. Gene Set Variation Analysis (GSVA) was first performed to provide an assessment of EMT phenotype, whereas Weighted Gene Co-expression Network Analysis (WGCNA) was constructed to determine EMT-associated key modules and genes. Based on the genes, a novel EMT-associated signature for predicting the recurrence of early-stage LUAD was identified using a least absolute shrinkage and selection operator (LASSO) algorithm and a stepwise Cox proportional hazards regression model. Kaplan-Meier survival analysis, receiver operating characteristic (ROC) curves and Cox regression analyses were used to estimate the performance of the identified gene signature. Results: GSVA revealed diverse EMT states in the early-stage LUAD. Further correlation analyses showed that the EMT states presented high correlations with several hallmarks of cancers, tumor purity, tumor microenvironment cells, and immune checkpoint genes. More importantly, Kaplan-Meier survival analyses indicated that patients with high EMT scores had worse recurrence-free survival (RFS) and overall survival (OS) than those with low EMT scores. A novel 5-gene signature ( AGL, ECM1, ENPP1, SNX7, and TSPAN12) was established based on the EMT-associated genes from WGCNA and this signature successfully predicted that the high-risk patients had a higher recurrence rate compared with the low-risk patients. In further analyses, the signature represented robust prognostic values in 2 independent validation cohorts (GEO and TCGA datasets) and a combined GEO cohort as evaluated by Kaplan-Meier survival ( P-value < .0001) and ROC analysis (AUC = 0.781). Moreover, the signature was corroborated to be independent of clinical factors by univariate and multivariate Cox regression analyses. Interestingly, the combination of the signature-based recurrence risk and tumor-node-metastasis (TNM) stage showed a superior predictive ability on the recurrence of patients with early-stage LUAD. Conclusion: Our study suggests that patients with early-stage LUAD exhibit diverse EMT states that play a vital role in tumor recurrence. The novel and promising EMT-associated 5-gene signature identified and validated in this study may be applied to predict the recurrence of early-stage LUAD, facilitating risk stratification, recurrence monitoring, and individualized management for the patients after surgical resection.
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Affiliation(s)
- Yi Han
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Fang Cheng Wong
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Di Wang
- Department of Respiratory Medicine, Fourth Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Christoph Kahlert
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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11
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Fan H, Li Y, Yuan F, Lu L, Liu J, Feng W, Zhang HG, Chen SY. Up-regulation of microRNA-34a mediates ethanol-induced impairment of neural crest cell migration in vitro and in zebrafish embryos through modulating epithelial-mesenchymal transition by targeting Snail1. Toxicol Lett 2022; 358:17-26. [PMID: 35038560 PMCID: PMC9058190 DOI: 10.1016/j.toxlet.2022.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/03/2022] [Accepted: 01/12/2022] [Indexed: 01/11/2023]
Abstract
Prenatal ethanol exposure can impair neural crest cell (NCC) development, including NCC survival, differentiation and migration, contributing to the craniofacial dysmorphology in Fetal Alcohol Spectrum Disorders (FASD). Epithelial-mesenchymal transition (EMT) plays an important role in regulating the migration of NCCs. The objective of this study is to determine whether ethanol exposure can suppress NCC migration through inhibiting EMT and whether microRNA-34a (miR-34a) is involved in the ethanol-induced impairment of EMT in NCCs. We found that exposure to 100 mM ethanol significantly inhibited the migration of NCCs. qRT-PCR and Western Blot analysis revealed that exposure to ethanol robustly reduced the mRNA and protein expression of Snail1, a critical transcriptional factor that has a pivotal role in the regulation of EMT. Ethanol exposure also significantly increased the mRNA expression of the Snail1 target gene E-cadherin1 and inhibited EMT in NCCs. We also found that exposure to ethanol significantly elevated the expression of miR-34a that targets Snail1 in NCCs. In addition, down-regulation of miR-34a prevented ethanol-induced repression of Snail1 and diminished ethanol-induced upregulation of Snail1 target gene E-cadherin1 in NCCs. Inhibition of miR-34a restored EMT and prevented ethanol-induced inhibition of NCC migration in vitro and in zebrafish embryos in vivo. These results demonstrate that ethanol-induced upregulation of miR-34a contributes to the impairment of NCC migration through suppressing EMT by targeting Snail1.
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Affiliation(s)
- Huadong Fan
- Department of Pharmacology and Toxicology, University of Louisville Health Sciences Center, Louisville, KY 40292, USA,University of Louisville Alcohol Research Center, Louisville, KY 40292, USA,These authors contributed equally
| | - Yihong Li
- Department of Pharmacology and Toxicology, University of Louisville Health Sciences Center, Louisville, KY 40292, USA,University of Louisville Alcohol Research Center, Louisville, KY 40292, USA,These authors contributed equally
| | - Fuqiang Yuan
- Department of Pharmacology and Toxicology, University of Louisville Health Sciences Center, Louisville, KY 40292, USA,University of Louisville Alcohol Research Center, Louisville, KY 40292, USA
| | - Lanhai Lu
- Department of Pharmacology and Toxicology, University of Louisville Health Sciences Center, Louisville, KY 40292, USA,University of Louisville Alcohol Research Center, Louisville, KY 40292, USA
| | - Jie Liu
- Department of Pharmacology and Toxicology, University of Louisville Health Sciences Center, Louisville, KY 40292, USA,University of Louisville Alcohol Research Center, Louisville, KY 40292, USA
| | - Wenke Feng
- Department of Pharmacology and Toxicology, University of Louisville Health Sciences Center, Louisville, KY 40292, USA,University of Louisville Alcohol Research Center, Louisville, KY 40292, USA,Department of Medicine, University of Louisville, Louisville, KY 40292, USA
| | - Huang-Ge Zhang
- Department of Microbiology and Immunology, James Graham Brown Cancer Center, University of Louisville, Louisville, KY 40292, USA,Robley Rex Veterans Affairs Medical Center, Louisville, KY 40292, USA
| | - Shao-yu Chen
- Department of Pharmacology and Toxicology, University of Louisville Health Sciences Center, Louisville, KY 40292, USA,University of Louisville Alcohol Research Center, Louisville, KY 40292, USA,To whom correspondence should be sent: Shao-yu Chen, Ph.D., Department of Pharmacology and Toxicology, University of Louisville Health Sciences Center, Louisville, KY 40292 Phone: (502) 852-8677 FAX: (502) 852-8927.
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12
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Savorani C, Malinverno M, Seccia R, Maderna C, Giannotta M, Terreran L, Mastrapasqua E, Campaner S, Dejana E, Giampietro C. A dual role of YAP in driving TGFβ-mediated endothelial-to-mesenchymal transition. J Cell Sci 2021; 134:271139. [PMID: 34338295 PMCID: PMC8353525 DOI: 10.1242/jcs.251371] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 06/23/2021] [Indexed: 12/12/2022] Open
Abstract
Endothelial-to-mesenchymal transition (EndMT) is the biological process through which endothelial cells transdifferentiate into mesenchymal cells. During embryo development, EndMT regulates endocardial cushion formation via TGFβ/BMP signaling. In adults, EndMT is mainly activated during pathological conditions. Hence, it is necessary to characterize molecular regulators cooperating with TGFβ signaling in driving EndMT, to identify potential novel therapeutic targets to treat these pathologies. Here, we studied YAP, a transcriptional co-regulator involved in several biological processes, including epithelial-to-mesenchymal transition (EMT). As EndMT is the endothelial-specific form of EMT, and YAP (herein referring to YAP1) and TGFβ signaling cross-talk in other contexts, we hypothesized that YAP contributes to EndMT by modulating TGFβ signaling. We demonstrate that YAP is required to trigger TGFβ-induced EndMT response, specifically contributing to SMAD3-driven EndMT early gene transcription. We provide novel evidence that YAP acts as SMAD3 transcriptional co-factor and prevents GSK3β-mediated SMAD3 phosphorylation, thus protecting SMAD3 from degradation. YAP is therefore emerging as a possible candidate target to inhibit pathological TGFβ-induced EndMT at early stages. Summary: A new crucial role for YAP as a co-activator of early pathological TGFβ-mediated endothelial-to-mesenchymal transition program and characterization of the underlying molecular mechanism.
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Affiliation(s)
- Cecilia Savorani
- Institute of Molecular Oncology (IFOM), The Fondazione Italiana per la Ricerca sul Cancro (FIRC) Institute of Molecular Oncology, Milan 20139, Italy
| | - Matteo Malinverno
- Institute of Molecular Oncology (IFOM), The Fondazione Italiana per la Ricerca sul Cancro (FIRC) Institute of Molecular Oncology, Milan 20139, Italy
| | - Roberta Seccia
- Institute of Molecular Oncology (IFOM), The Fondazione Italiana per la Ricerca sul Cancro (FIRC) Institute of Molecular Oncology, Milan 20139, Italy
| | - Claudio Maderna
- Institute of Molecular Oncology (IFOM), The Fondazione Italiana per la Ricerca sul Cancro (FIRC) Institute of Molecular Oncology, Milan 20139, Italy
| | - Monica Giannotta
- Institute of Molecular Oncology (IFOM), The Fondazione Italiana per la Ricerca sul Cancro (FIRC) Institute of Molecular Oncology, Milan 20139, Italy
| | - Linda Terreran
- Institute of Molecular Oncology (IFOM), The Fondazione Italiana per la Ricerca sul Cancro (FIRC) Institute of Molecular Oncology, Milan 20139, Italy
| | - Eleonora Mastrapasqua
- Institute of Molecular Oncology (IFOM), The Fondazione Italiana per la Ricerca sul Cancro (FIRC) Institute of Molecular Oncology, Milan 20139, Italy
| | - Stefano Campaner
- Center for Genomic Science of IIT@SEMM, Fondazione Istituto Italiano di Tecnologia (IIT), Milan 20139, Italy
| | - Elisabetta Dejana
- Institute of Molecular Oncology (IFOM), The Fondazione Italiana per la Ricerca sul Cancro (FIRC) Institute of Molecular Oncology, Milan 20139, Italy.,Department of Immunology, Genetics and Pathology, Vascular Biology, Uppsala University, Uppsala 751 85, Sweden
| | - Costanza Giampietro
- Institute of Molecular Oncology (IFOM), The Fondazione Italiana per la Ricerca sul Cancro (FIRC) Institute of Molecular Oncology, Milan 20139, Italy.,Swiss Federal Laboratories for Materials Science and Technology (EMPA), Dübendorf 8600, Switzerland.,Department of Mechanical and Process Engineering, ETH Zurich, Zurich 8092, Switzerland
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13
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Wu Q, Miao X, Zhang J, Xiang L, Li X, Bao X, Du S, Wang M, Miao S, Fan Y, Wang W, Xu X, Shen X, Yang D, Wang X, Fang Y, Hu L, Pan X, Dong H, Wang H, Wang Y, Li J, Huang Z. Astrocytic YAP protects the optic nerve and retina in an experimental autoimmune encephalomyelitis model through TGF-β signaling. Theranostics 2021; 11:8480-8499. [PMID: 34373754 PMCID: PMC8344002 DOI: 10.7150/thno.60031] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 07/06/2021] [Indexed: 02/07/2023] Open
Abstract
Rationale: Optic neuritis is one of main symptoms in multiple sclerosis (MS) that causes visual disability. Astrocytes are pivotal regulators of neuroinflammation in MS, and astrocytic yes-associated protein (YAP) plays a critical role in neuroinflammation. Meanwhile, YAP signaling is involved in visual impairment, including glaucoma, retinal choroidal atrophy and retinal detachment. However, the roles and underlying mechanisms of astrocytic YAP in neuroinflammation and demyelination of MS-related optic neuritis (MS-ON) remains unclear. Methods: To assess the functions of YAP in MS-ON, experimental autoimmune encephalomyelitis (EAE, a common model of MS) was established, and mice that conditional knockout (CKO) of YAP in astrocytes, YAPGFAP-CKO mice, were successfully generated. Behavior tests, immunostaining, Nissl staining, Hematoxylin-Eosin (HE) staining, TUNEL staining, Luxol Fast Blue (LFB) staining, electron microscopy (EM), quantitative real-time PCR (qPCR), gene set enrichment analysis (GSEA) and gene set variation analysis (GSVA) by RNA sequencing were used to examine the function and mechanism of YAP signaling based on these YAPGFAP-CKO mice and EAE model mice. To further explore the potential treatment of YAP signaling in EAE, EAE mice were treated with various drugs, including SRI-011381 that is an agonist of transforming growth factor-β (TGF-β) pathway, and XMU-MP-1 which inhibits Hippo kinase MST1/2 to activate YAP. Results: We found that YAP was significantly upregulated and activated in the astrocytes of optic nerve in EAE mice. Conditional knockout of YAP in astrocytes caused more severe inflammatory infiltration and demyelination in optic nerve, and damage of retinal ganglion cells (RGCs) in EAE mice. Moreover, YAP deletion in astrocytes promoted the activation of astrocytes and microglia, but inhibited the proliferation of astrocytes of optic nerve in EAE mice. Mechanically, TGF-β signaling pathway was significantly down-regulated after YAP deletion in astrocytes. Additionally, both qPCR and immunofluorescence assays confirmed the reduction of TGF-β signaling pathway in YAPGFAP-CKO EAE mice. Interestingly, SRI-011381 partially rescued the deficits in optic nerve and retina of YAPGFAP-CKO EAE mice. Finally, activation of YAP signaling by XMU-MP-1 relieved the neuroinflammation and demyelination in optic nerve of EAE mice. Conclusions: These results suggest astrocytic YAP may prevent the neuroinflammatory infiltration and demyelination through upregulation of TGF-β signaling and provide targets for the development of therapeutic strategies tailored for MS-ON.
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14
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Nishad R, Mukhi D, Singh AK, Motrapu M, Chintala K, Tammineni P, Pasupulati AK. Growth hormone induces mitotic catastrophe of glomerular podocytes and contributes to proteinuria. Cell Death Dis 2021; 12:342. [PMID: 33795655 PMCID: PMC8016968 DOI: 10.1038/s41419-021-03643-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 12/13/2022]
Abstract
Glomerular podocytes are integral members of the glomerular filtration barrier in the kidney and are crucial for glomerular permselectivity. These highly differentiated cells are vulnerable to an array of noxious stimuli that prevail in several glomerular diseases. Elevated circulating growth hormone (GH) levels are associated with podocyte injury and proteinuria in diabetes. However, the precise mechanism(s) by which excess GH elicits podocytopathy remains to be elucidated. Previous studies have shown that podocytes express GH receptor (GHR) and induce Notch signaling when exposed to GH. In the present study, we demonstrated that GH induces TGF-β1 signaling and provokes cell cycle reentry of otherwise quiescent podocytes. Though differentiated podocytes reenter the cell cycle in response to GH and TGF-β1, they cannot accomplish cytokinesis, despite karyokinesis. Owing to this aberrant cell cycle event, GH- or TGF-β1-treated cells remain binucleated and undergo mitotic catastrophe. Importantly, inhibition of JAK2, TGFBR1 (TGF-β receptor 1), or Notch prevented cell cycle reentry of podocytes and protected them from mitotic catastrophe associated with cell death. Inhibition of Notch activation prevents GH-dependent podocyte injury and proteinuria. Similarly, attenuation of GHR expression abated Notch activation in podocytes. Kidney biopsy sections from patients with diabetic nephropathy (DN) show activation of Notch signaling and binucleated podocytes. These data indicate that excess GH induced TGF-β1-dependent Notch1 signaling contributes to the mitotic catastrophe of podocytes. This study highlights the role of aberrant GH signaling in podocytopathy and the potential application of TGF-β1 or Notch inhibitors, as a therapeutic agent for DN.
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Affiliation(s)
- Rajkishor Nishad
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Dhanunjay Mukhi
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Ashish Kumar Singh
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Manga Motrapu
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Kumaraswami Chintala
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Prasad Tammineni
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Anil K Pasupulati
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India.
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15
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Kumari A, Shonibare Z, Monavarian M, Arend RC, Lee NY, Inman GJ, Mythreye K. TGFβ signaling networks in ovarian cancer progression and plasticity. Clin Exp Metastasis 2021; 38:139-161. [PMID: 33590419 PMCID: PMC7987693 DOI: 10.1007/s10585-021-10077-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 02/03/2021] [Indexed: 02/06/2023]
Abstract
Epithelial ovarian cancer (EOC) is a leading cause of cancer-related death in women. Late-stage diagnosis with significant tumor burden, accompanied by recurrence and chemotherapy resistance, contributes to this poor prognosis. These morbidities are known to be tied to events associated with epithelial-mesenchymal transition (EMT) in cancer. During EMT, localized tumor cells alter their polarity, cell-cell junctions, cell-matrix interactions, acquire motility and invasiveness and an exaggerated potential for metastatic spread. Key triggers for EMT include the Transforming Growth Factor-β (TGFβ) family of growth factors which are actively produced by a wide array of cell types within a specific tumor and metastatic environment. Although TGFβ can act as either a tumor suppressor or promoter in cancer, TGFβ exhibits its pro-tumorigenic functions at least in part via EMT. TGFβ regulates EMT both at the transcriptional and post-transcriptional levels as outlined here. Despite recent advances in TGFβ based therapeutics, limited progress has been seen for ovarian cancers that are in much need of new therapeutic strategies. Here, we summarize and discuss several recent insights into the underlying signaling mechanisms of the TGFβ isoforms in EMT in the unique metastatic environment of EOCs and the current therapeutic interventions that may be relevant.
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Affiliation(s)
- Asha Kumari
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, WTI 320B, 1824 Sixth Avenue South, Birmingham, AL, 35294, USA
| | - Zainab Shonibare
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, WTI 320B, 1824 Sixth Avenue South, Birmingham, AL, 35294, USA
| | - Mehri Monavarian
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, WTI 320B, 1824 Sixth Avenue South, Birmingham, AL, 35294, USA
| | - Rebecca C Arend
- Department of Obstetrics and Gynecology-Gynecologic Oncology, University of Alabama at Birmingham, Birmingham, AL, 35233, USA
| | - Nam Y Lee
- Division of Pharmacology, Chemistry and Biochemistry, College of Medicine, University of Arizona, Tucson, AZ, 85721, USA
| | - Gareth J Inman
- Cancer Research UK Beatson Institute and Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Karthikeyan Mythreye
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, WTI 320B, 1824 Sixth Avenue South, Birmingham, AL, 35294, USA.
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16
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Lo Sardo F, Pulito C, Sacconi A, Korita E, Sudol M, Strano S, Blandino G. YAP/TAZ and EZH2 synergize to impair tumor suppressor activity of TGFBR2 in non-small cell lung cancer. Cancer Lett 2020; 500:51-63. [PMID: 33296708 DOI: 10.1016/j.canlet.2020.11.037] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/06/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022]
Abstract
Lung cancer is the leading cause of cancer-related deaths, worldwide. Non-small cell lung cancer (NSCLC) is the most prevalent lung cancer subtype. YAP and TAZ have been implicated in lung cancer by acting as transcriptional co-activators of oncogenes or as transcriptional co-repressors of tumor suppressor genes. Previously we reported that YAP and TAZ regulate microRNAs expression in NSCLC. Among the set of regulated miRNAs, the oncogenic miR-25, 93, and 106b, clustering within the MCM7 gene were selected for further studies. We firstly identified Transforming Growth Factor-β (TGF-β) Receptor 2 (TGFBR2), a member of the TGF-β signaling, as a target of the miRNA cluster, which exhibited prognostic value because of its tumor suppressor activity. We found that YAP/TAZ-mediated repression of TGFBR2 occurs both: post-transcriptionally through the miR-106b-25 cluster and transcriptionally by engaging the EZH2 epigenetic repressor that we reported here as a novel target gene of YAP/TAZ. Furthermore, we document that YAP/TAZ and EZH2 cooperate in lung tumorigenesis by transcriptionally repressing a specific subset of tumor suppressor genes, including TGFBR2. Our findings point to YAP/TAZ and EZH2 as potential therapeutic targets for NSCLC treatment.
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Affiliation(s)
- Federica Lo Sardo
- UOSD Oncogenomic and Epigenetic Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Claudio Pulito
- UOSD Oncogenomic and Epigenetic Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Andrea Sacconi
- UOSD Clinical Trial Center, Biostatistics and Bioinformatics, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Etleva Korita
- UOSD Oncogenomic and Epigenetic Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Marius Sudol
- Department of Physiology, National University of Singapore, Laboratory of Cancer Signaling & Domainopathies, Yong Loo Li School of Medicine, Block MD9, 2 Medical Drive #04-01, 117597, Republic of Singapore; Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Sabrina Strano
- SAFU Laboratory, Department of Research, Advanced Diagnostic, and Technological Innovation, IRCCS Regina Elena National Cancer Institute, Rome, Italy.
| | - Giovanni Blandino
- UOSD Oncogenomic and Epigenetic Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy.
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17
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Increased Cytoplasmic Yes-associated Protein (YAP) Expression in Mismatch Repair Protein-Proficient Colorectal Cancer With High-grade Tumor Budding and Reduced Autophagy Activity. Appl Immunohistochem Mol Morphol 2020; 29:305-312. [PMID: 33264106 DOI: 10.1097/pai.0000000000000888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 10/26/2020] [Indexed: 01/07/2023]
Abstract
Yes-associated protein (YAP) is a transcriptional coactivator regulated by autophagy that stimulates colorectal cancer (CRC) progression through activation of epithelial-mesenchymal transition (EMT), represented by tumor budding. The associations between these components in CRC are unknown. Archived surgically resected CRCs with known mismatch repair protein (MMR) status were retrieved (n=81; 2010 to 2016). Electronic medical records were reviewed for clinicopathologic variables including pathologic TNM stage and clinical stage. Tumor budding was graded according to consensus guidelines. Cytoplasmic and nuclear YAP and p62 (autophagy substrate) immunoreactivity were semiquantitatively scored within tumor samples. The Student t test, Fisher exact test, χ2 test, and Spearman correlation coefficient were performed with P<0.05 as a significance level. MMR proficiency (MMR-P) status correlated with high-grade tumor budding. The extent of cytoplasmic YAP staining and pathologic N stage was associated with tumor budding in multivariate analysis. Cytoplasmic YAP expression correlated with higher cytoplasmic p62 expression, suggesting an inverse correlation between autophagy activation and cytoplasmic YAP expression. Nuclear YAP expression correlated with pathologic N stage and clinical stage. A correlation between MMR-P status and tumor budding, combined with correlations between cytoplasmic YAP, tumor budding and p62 raise the possibility of 2 distinct neoplastic pathways concerning autophagy and YAP; one displaying relative activation of YAP and EMT, being commonly observed in MMR-P, and another with less active YAP and EMT, but active autophagy, being commonly seen in MMR-deficient CRC. Nuclear YAP staining could be useful in prognostication.
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18
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Blum KA, Gupta S, Tickoo SK, Chan TA, Russo P, Motzer RJ, Karam JA, Hakimi AA. Sarcomatoid renal cell carcinoma: biology, natural history and management. Nat Rev Urol 2020; 17:659-678. [PMID: 33051619 PMCID: PMC7551522 DOI: 10.1038/s41585-020-00382-9] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2020] [Indexed: 12/24/2022]
Abstract
Sarcomatoid dedifferentiation is an uncommon feature that can occur in most histological subtypes of renal cell carcinomas (RCCs) and carries a decidedly poor prognosis. Historically, conventional treatments for sarcomatoid RCCs (sRCCs) have shown little efficacy, and median survival is commonly 6–13 months. Despite being first described in 1968, the mechanisms driving sarcomatoid dedifferentiation remain poorly understood, and information and treatment options available to physicians and patients are limited. When diagnosed at an early stage, surgical intervention remains the treatment of choice. However, preoperative identification through routine imaging or biopsy is unreliable and most patients present with advanced disease and systemic symptoms. For these patients, the role of cytoreductive nephrectomy is disputed. The expansion of immunotherapies approved for RCCs has generated a search for biomarkers that might be indicative of treatment response in sRCCs, although a proven effective systemic agent remains elusive. PDL1 expression is increased in sarcomatoid dedifferentiated renal tumours, which suggests that patients with sRCCs could benefit from PD1 and/or PDL1 immune checkpoint blockade therapy. Treatment outcomes for sarcomatoid tumours have remained relatively consistent compared with other RCCs, but further investigation of the tumour–immune cell microenvironment might yield insights into further therapeutic possibilities. In this Review, Blum et al. summarize the current knowledge on sarcomatoid renal cell carcinoma, a diagnosis characterized by the presence of sarcomatoid dedifferentiation and a poor prognosis. They discuss the origin, presentation, molecular biology and treatment of this disease. Sarcomatoid dedifferentiation is not considered to be a unique histological subtype of renal cell carcinomas (RCCs); rather, it can be present within any subtype of RCCs. Sarcomatoid dedifferentiation appears in ~4% of all RCCs, but is present in ~20% of all metastatic RCCs. According to WHO guidelines, any RCC with sarcomatoid dedifferentiation is a WHO–International Society of Urological Pathology grade 4 lesion. Sarcomatoid dedifferentiation is often heterogeneously present within RCCs, making routine imaging and biopsy unreliable for preoperative detection. Surgical resection for localized disease is the standard of care, with subsequent close monitoring of patients following surgery. In patients with metastatic disease, conventional therapies such as surgery and systemic agents have been ineffective and overall 5-year survival remains at 23.5–33%. Previous genomic analyses have failed to identify definitive mutational drivers of disease. However, sarcomatoid RCCs (sRCCs) have been shown to have higher PD1 and PDL1 expression than other subtypes of RCCs. Newer combinations of immune checkpoint inhibitor immunotherapies could yield improved responses and outcomes. Studies investigating sRCCs are limited by patient numbers owing to the low incidence of sRCCs and their advanced stage at presentation. Multi-institutional efforts to establish a consensus on treatment recommendations based on highly powered data are essential.
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Affiliation(s)
- Kyle A Blum
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sounak Gupta
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Satish K Tickoo
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Timothy A Chan
- Department of Radiation Oncology, Immunogenomics and Precision Oncology Platform, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Paul Russo
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Robert J Motzer
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jose A Karam
- Departments of Urology and Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - A Ari Hakimi
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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Gao J, Han W, He Y, Zhou J, Miao J, Zhang G. Livin promotes tumor progression through YAP activation in ovarian cancer. Am J Cancer Res 2020; 10:3179-3193. [PMID: 33163264 PMCID: PMC7642671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/03/2020] [Indexed: 06/11/2023] Open
Abstract
Ovarian cancer is a gynecological malignant tumor with a high morbidity. Livin is a novel member of the inhibitor of apoptosis protein family, which is expressed in various malignant tumors and is suggested to be a poor prognostic factor. However, the prognostic significance of Livin and the molecular mechanisms by which Livin promotes ovarian cancer progression are poorly understood. In this study, the upregulation of Livin was confirmed both in primary specimens from ovarian cancer patients and in ovarian cancer cell lines compared to normal controls in vitro. Overexpression of specific Livin transcripts promoted cell growth and migration in vitro, while knockdown of Livin expression suppressed these cellular processes. These effects of the Livin gene were also demonstrated in a xenograft mouse model. Mechanistic studies further revealed that Livin promotes the proliferation and invasion of ovarian cancer cells by activating the transcriptional coactivator YAP, a critical component of the Hippo signaling pathway. Furthermore, we revealed that inhibition of YAP by short-hairpin RNA prevents the growth and invasion of ovarian cancer cells in vivo and in vitro. Therefore, Livin may be a potential novel therapeutic target for the treatment of ovarian cancer.
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Affiliation(s)
- Jianhua Gao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University Harbin 150001, Heilongjiang, China
| | - Wei Han
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University Harbin 150001, Heilongjiang, China
| | - Yanan He
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University Harbin 150001, Heilongjiang, China
| | - Jun Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University Harbin 150001, Heilongjiang, China
| | - Jintian Miao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University Harbin 150001, Heilongjiang, China
| | - Guangmei Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Harbin Medical University Harbin 150001, Heilongjiang, China
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20
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Yang J, Lee SJ, Kwon Y, Ma L, Kim J. Tumor suppressive function of Matrin 3 in the basal-like breast cancer. Biol Res 2020; 53:42. [PMID: 32977861 PMCID: PMC7519516 DOI: 10.1186/s40659-020-00310-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 09/17/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Basal-like breast cancer (BLBC) or triple-negative breast cancer (TNBC) is an aggressive and highly metastatic subtype of human breast cancer. The present study aimed to elucidate the potential tumor-suppressive function of MATR3, an abundant nuclear protein, in BLBC/TNBC, whose cancer-relevance has not been characterized. METHODS We analyzed in vitro tumorigenecity by cell proliferation and soft agar colony formation assays, apoptotic cell death by flow cytometry and Poly (ADP-ribose) polymerase (PARP) cleavage, epithelial-mesenchymal transition (EMT) by checking specific EMT markers with real-time quantitative PCR and in vitro migration and invasion by Boyden Chamber assays. To elucidate the underlying mechanism by which MATR3 functions as a tumor suppressor, we performed Tandem affinity purification followed by mass spectrometry (TAP-MS) and pathway analysis. We also scrutinized MATR3 expression levels in the different subtypes of human breast cancer and the correlation between MATR3 expression and patient survival by bioinformatic analyses of publicly available transcriptome datasets. RESULTS MATR3 suppressed in vitro tumorigenecity, promoted apoptotic cell death and inhibited EMT, migration, and invasion in BLBC/TNBC cells. Various proteins regulating apoptosis were identified as MATR3-binding proteins, and YAP/TAZ pathway was suppressed by MATR3. MATR3 expression was inversely correlated with the aggressive and metastatic nature of breast cancer. Moreover, high expression levels of MATR3 were associated with a good prognosis of breast cancer patients. CONCLUSIONS Our data demonstrate that MATR3 functions as a putative tumor suppressor in BLBC/TNBC cells. Also, MATR3 potentially plays a role as a biomarker in predicting chemotherapy-sensitivity and patient survival in breast cancer patients.
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Affiliation(s)
- Jaehyuk Yang
- Department of Life Sciences, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea
| | - Seung Jun Lee
- Department of Life Sciences, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea
| | - Yongseok Kwon
- Department of Chemistry, Sogang University, Seoul, Republic of Korea
| | - Li Ma
- Department of Experimental Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jongchan Kim
- Department of Life Sciences, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, Republic of Korea.
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21
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Shin E, Kim J. The potential role of YAP in head and neck squamous cell carcinoma. Exp Mol Med 2020; 52:1264-1274. [PMID: 32859951 PMCID: PMC8080831 DOI: 10.1038/s12276-020-00492-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/26/2020] [Accepted: 07/06/2020] [Indexed: 01/20/2023] Open
Abstract
The transcriptional cofactor YAP and its inhibitory regulators, Hippo kinases and adapter proteins, constitute an evolutionarily conserved signaling pathway that controls organ size and cell fate. The activity of the Hippo-YAP pathway is determined by a variety of intracellular and intercellular cues, such as cell polarity, junctions, density, mechanical stress, energy status, and growth factor signaling. Recent studies have demonstrated that YAP can induce the expression of a set of genes that allow cancer cells to gain a survival advantage and aggressive behavior. Comprehensive genomic studies have revealed frequent focal amplifications of the YAP locus in human carcinomas, including head and neck squamous cell carcinoma (HNSCC). Moreover, FAT1, which encodes an upstream component of Hippo signaling, is one of the most commonly altered genes in HNSCC. In this review, we discuss the causes and functional consequences of YAP dysregulation in HNSCC. We also address interactions between YAP and other oncogenic drivers of HNSCC. Abnormal activity of a protein involved in cell proliferation may influence the progression of head and neck cancers. Head and neck squamous cell carcinoma (HNSCC) affects the skin, throat, mouth and nose tissues. Disruption to the Hippo-YAP signaling pathway, which plays a key role in cell proliferation and differentiation, is implicated in multiple cancers. Joon Kim and Eunbie Shin at the Korea Advanced Institute of Science and Technology, Daejeon, South Korea, reviewed recent research into the role of YAP in HNSCC. Abnormal YAP protein activity triggers the expression of genes that encourage cancer cell proliferation. Mice with over-expressed YAP showed tissue overgrowth and tumor formation. High YAP levels have been found at the invasive front of HNSCC tumors, suggesting a role in metastasis. Further research is needed to verify whether YAP is a potential therapeutic target.
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Affiliation(s)
- Eunbie Shin
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Joon Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea.
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22
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Shi W, Wang D, Yuan X, Liu Y, Guo X, Li J, Song J. Glucocorticoid receptor-IRS-1 axis controls EMT and the metastasis of breast cancers. J Mol Cell Biol 2020; 11:1042-1055. [PMID: 30726932 PMCID: PMC6934157 DOI: 10.1093/jmcb/mjz001] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 12/13/2018] [Accepted: 02/02/2019] [Indexed: 01/05/2023] Open
Abstract
Glucocorticoid receptor (GR) is involved in the transcriptional regulation of genes that are important for various biological functions, including tumor growth and metastatic progression. However, the cellular and biological effects of GR remain poorly understood. Here, we investigated the role of GR and its underlying mechanism in mediating breast cancer cell survival and metastasis. We observed that the GR levels were increased in drug-resistant breast cancer cells and in metastatic breast cancer samples. GR promoted tumor cell invasion and lung metastasis in vivo. The GR expression levels were negatively correlated with the survival rates of breast cancer patients. Both ectopic expression and knockdown of GR revealed that GR is a strong inducer of epithelial-to-mesenchymal transition (EMT), which is consistent with its effects on cell survival and metastasis. GR suppressed the expression of insulin receptor substrate 1 (IRS-1) by acting as an IRS-1 transcriptional repressor. In addition, GR has an opposite effect on the expression levels of IRS-2, indicating that GR is able to differentially regulate the IRS-1 and IRS-2 expression. The cellular and biological effects elicited by GR were consistent with the reduced levels of IRS-1 observed in cancer cells, and GR-mediated IRS-1 suppression activated the ERK2 MAP kinase pathway, which is required for GR-mediated EMT. Taken together, our results indicate that GR–IRS-1 signaling axis plays an essential role in regulating the survival, invasion, and metastasis of breast cancer cells.
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Affiliation(s)
- Weiwei Shi
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Dongmei Wang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Xinwang Yuan
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Yi Liu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Xiaojie Guo
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Jingsong Li
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Jianguo Song
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
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Hippo/YAP Signaling Pathway: A Promising Therapeutic Target in Bone Paediatric Cancers? Cancers (Basel) 2020; 12:cancers12030645. [PMID: 32164350 PMCID: PMC7139637 DOI: 10.3390/cancers12030645] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/06/2020] [Accepted: 03/07/2020] [Indexed: 12/11/2022] Open
Abstract
Osteosarcoma and Ewing sarcoma are the most prevalent bone pediatric tumors. Despite intensive basic and medical research studies to discover new therapeutics and to improve current treatments, almost 40% of osteosarcoma and Ewing sarcoma patients succumb to the disease. Patients with poor prognosis are related to either the presence of metastases at diagnosis or resistance to chemotherapy. Over the past ten years, considerable interest for the Hippo/YAP signaling pathway has taken place within the cancer research community. This signaling pathway operates at different steps of tumor progression: Primary tumor growth, angiogenesis, epithelial to mesenchymal transition, and metastatic dissemination. This review discusses the current knowledge about the involvement of the Hippo signaling pathway in cancer and specifically in paediatric bone sarcoma progression.
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24
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Pulignani S, Borghini A, Foffa I, Vecoli C, Ait-Alì L, Andreassi MG. Functional characterization and circulating expression profile of dysregulated microRNAs in BAV-associated aortopathy. Heart Vessels 2020; 35:432-440. [PMID: 31562552 DOI: 10.1007/s00380-019-01509-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 09/20/2019] [Indexed: 02/07/2023]
Abstract
Compelling evidence has shown that microRNAs (miRs) are involved in the pathophysiology of BAV-associated aortopathy. The purpose of this study was to assess the biological role as well as the circulating expression of two miRs (miR-424-3p and miR-3688-3p) that have been previously identified as significantly dysregulated in thoracic aortic aneurysm specimens of BAV patients. Bioinformatic tools were used to predict miR gene targets followed by functional validation transfecting synthetic miR mimics and negative controls into human aortic smooth muscle cells (HASMCs). Levels of miRs and target genes were evaluated by qRT-PCR. The circulating miR expression profile analysis was assessed on plasma samples collected from a cohort of 72 patients with aortopathy including 39 BAV (33 males; 58 ± 13 years) and 33 TAV patients (26 males; 67 ± 9 years). Computational analysis revealed that SMAD7 and YAP1 were potential targets of miR-424-3p and miR-3688-3p, respectively. Transfection with mimics confirmed a significantly decreased gene expression of SMAD7 and YAP1 compared to mimic negative control (p = 0.04 and p = 0.0005, respectively) or blank control (p = 0.01 and p = 0.0007, respectively). Overexpression of miR-3688-3p also significantly upregulated pro-apoptotic caspase-3 gene expression compared to mimic negative control (p = 0.02) or blank control (p = 0.01). Furthermore, a significant down-regulation of the circulating miR-424-3p was observed in BAV compared to TAV patients (p = 0.001). In multiple linear regression analysis, the aortic valve morphology (β = - 0.29, p = 0.04) and the presence of aortic stenosis (β = - 0.28, p = 0.03) had a significant effect on the miR-424-3p expression. In conclusion, our study demonstrated that miR-424-3p and miR-3688-3p directly targeted SMAD7 and YAP1 in HASMCs, pivotal genes of the TGF-β and Hippo-signaling pathways. Circulating miR-424-3p was also found to be significantly decreased in BAV patients when compared to TAV patients, especially in patients with aortic stenosis. Further large studies of well-characterized BAV patient cohorts are needed to define the clinical significance of the miR-424-3p.
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Affiliation(s)
- Silvia Pulignani
- Institute of Clinical Physiology (IFC), Via Moruzzi 1, 56124, Pisa, Italy
| | - Andrea Borghini
- Institute of Clinical Physiology (IFC), Via Moruzzi 1, 56124, Pisa, Italy
| | - Ilenia Foffa
- Institute of Clinical Physiology (IFC), Via Moruzzi 1, 56124, Pisa, Italy
| | - Cecilia Vecoli
- Institute of Clinical Physiology (IFC), Via Moruzzi 1, 56124, Pisa, Italy
| | - Lamia Ait-Alì
- Institute of Clinical Physiology (IFC), Via Moruzzi 1, 56124, Pisa, Italy
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25
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Pu Y, Liu YQ, Zhou Y, Qi YF, Liao SP, Miao SK, Zhou LM, Wan LH. Dual role of RACK1 in airway epithelial mesenchymal transition and apoptosis. J Cell Mol Med 2020; 24:3656-3668. [PMID: 32064783 PMCID: PMC7131927 DOI: 10.1111/jcmm.15061] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 01/04/2020] [Accepted: 01/21/2020] [Indexed: 02/05/2023] Open
Abstract
Airway epithelial apoptosis and epithelial mesenchymal transition (EMT) are two crucial components of asthma pathogenesis, concomitantly mediated by TGF‐β1. RACK1 is the downstream target gene of TGF‐β1 shown to enhancement in asthma mice in our previous study. Balb/c mice were sensitized twice and challenged with OVA every day for 7 days. Transformed human bronchial epithelial cells, BEAS‐2B cells were cultured and exposed to recombinant soluble human TGF‐β1 to induced apoptosis (30 ng/mL, 72 hours) and EMT (10 ng/mL, 48 hours) in vitro, respectively. siRNA and pharmacological inhibitors were used to evaluate the regulation of RACK1 protein in apoptosis and EMT. Western blotting analysis and immunostaining were used to detect the protein expressions in vivo and in vitro. Our data showed that RACK1 protein levels were significantly increased in OVA‐challenged mice, as well as TGF‐β1‐induced apoptosis and EMT of BEAS‐2B cells. Knockdown of RACK1 (siRACK1) significantly inhibited apoptosis and decreased TGF‐β1 up‐regulated EMT related protein levels (N‐cadherin and Snail) in vitro via suppression of JNK and Smad3 activation. Moreover, siSmad3 or siJNK impaired TGF‐β1‐induced N‐cadherin and Snail up‐regulation in vitro. Importantly, JNK gene silencing (siERK) also impaired the regulatory effect of TGF‐β1 on Smad3 activation. Our present data demonstrate that RACK1 is a concomitant regulator of TGF‐β1 induces airway apoptosis and EMT via JNK/Smad/Snail signalling axis. Our findings may provide a new insight into understanding the regulation mechanism of RACK1 in asthma pathogenesis.
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Affiliation(s)
- Yue Pu
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Yuan-Qi Liu
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Yan Zhou
- Department of Intensive Care Unit, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Yi-Fan Qi
- Grade 2015, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Shi-Ping Liao
- Functional Laboratory, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Shi-Kun Miao
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Li-Ming Zhou
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Li-Hong Wan
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
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26
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Xia X, Li C, Wang Y, Deng X, Ma Y, Ding L, Zheng J. Reprogrammed astrocytes display higher neurogenic competence, migration ability and cell death resistance than reprogrammed fibroblasts. Transl Neurodegener 2020; 9:6. [PMID: 32071715 PMCID: PMC7011554 DOI: 10.1186/s40035-020-0184-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 01/30/2020] [Indexed: 12/20/2022] Open
Abstract
The direct reprogramming of somatic cells into induced neural progenitor cells (iNPCs) has been envisioned as a promising approach to overcome ethical and clinical issues of pluripotent stem cell transplantation. We previously reported that astrocyte-derived induced pluripotent stem cells (iPSCs) have more tendencies for neuronal differentiation than fibroblast-derived iPSCs. However, the differences of neurogenic potential between astrocyte-derived iNPCs (AiNPCs) and iNPCs from non-neural origins, such as fibroblast-derived iNPCs (FiNPCs), and the underlying mechanisms remain unclear. Our results suggested that AiNPCs exhibited higher differentiation efficiency, mobility and survival capacities, compared to FiNPCs. The whole transcriptome analysis revealed higher activities of TGFβ signaling in AiNPCs, versus FiNPCs, following a similar trend between astrocytes and fibroblasts. The higher neurogenic competence, migration ability, and cell death resistance of AiNPCs could be abrogated using TGFβ signaling inhibitor LY2157299. Hence, our study demonstrates the difference between iNPCs generated from neural and non-neural cells, together with the underlying mechanisms, which, provides valuable information for donor cell selection in the reprogramming approach.
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Affiliation(s)
- Xiaohuan Xia
- 1Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
| | - Chunhong Li
- 1Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
| | - Yi Wang
- 1Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
| | - Xiaobei Deng
- 1Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
| | - Yizhao Ma
- 1Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
| | - Lu Ding
- 1Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China
| | - Jialin Zheng
- 1Center for Translational Neurodegeneration and Regenerative Therapy, Shanghai Tenth People's Hospital affiliated to Tongji University School of Medicine, Shanghai, 200072 China.,2Collaborative Innovation Center for Brain Science, Tongji University, Shanghai, 200092 China.,3Departments of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5930 USA.,4Department of Pathology and Microbiology, University of Nebraska Medical Center,, Omaha, NE 68198-5930 USA
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27
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Hutchinson LD, Darling NJ, Nicolaou S, Gori I, Squair DR, Cohen P, Hill CS, Sapkota GP. Salt-inducible kinases (SIKs) regulate TGFβ-mediated transcriptional and apoptotic responses. Cell Death Dis 2020; 11:49. [PMID: 31969556 PMCID: PMC6976658 DOI: 10.1038/s41419-020-2241-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 01/08/2020] [Accepted: 01/08/2020] [Indexed: 12/13/2022]
Abstract
The signalling pathways initiated by members of the transforming growth factor-β (TGFβ) family of cytokines control many metazoan cellular processes, including proliferation and differentiation, epithelial-mesenchymal transition (EMT) and apoptosis. TGFβ signalling is therefore strictly regulated to ensure appropriate context-dependent physiological responses. In an attempt to identify novel regulatory components of the TGFβ signalling pathway, we performed a pharmacological screen by using a cell line engineered to report the endogenous transcription of the TGFβ-responsive target gene PAI-1. The screen revealed that small molecule inhibitors of salt-inducible kinases (SIKs) attenuate TGFβ-mediated transcription of PAI-1 without affecting receptor-mediated SMAD phosphorylation, SMAD complex formation or nuclear translocation. We provide evidence that genetic inactivation of SIK isoforms also attenuates TGFβ-dependent transcriptional responses. Pharmacological inhibition of SIKs by using multiple small-molecule inhibitors potentiated apoptotic cell death induced by TGFβ stimulation. Our data therefore provide evidence for a novel function of SIKs in modulating TGFβ-mediated transcriptional and cellular responses.
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Affiliation(s)
- Luke D Hutchinson
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Sir James Black Centre, Dow Street, Dundee, DD1 5EH, UK
- Cancer Research UK Beatson Institute, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
| | - Nicola J Darling
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Sir James Black Centre, Dow Street, Dundee, DD1 5EH, UK
| | - Stephanos Nicolaou
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
- The Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Ilaria Gori
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
| | - Daniel R Squair
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Sir James Black Centre, Dow Street, Dundee, DD1 5EH, UK
| | - Philip Cohen
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Sir James Black Centre, Dow Street, Dundee, DD1 5EH, UK
| | - Caroline S Hill
- The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
| | - Gopal P Sapkota
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Sir James Black Centre, Dow Street, Dundee, DD1 5EH, UK.
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28
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Malouf GG, Flippot R, Dong Y, Dinatale RG, Chen YB, Su X, Compérat E, Rouprêt M, Mano R, Blum KA, Yao H, Mouawad R, Spano JP, Khayat D, Karam JA, Ho TH, Tickoo SK, Russo P, Hsieh JJ, Tannir NM, Hakimi AA. Molecular characterization of sarcomatoid clear cell renal cell carcinoma unveils new candidate oncogenic drivers. Sci Rep 2020; 10:701. [PMID: 31959902 PMCID: PMC6971072 DOI: 10.1038/s41598-020-57534-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 12/17/2019] [Indexed: 11/18/2022] Open
Abstract
Sarcomatoid clear-cell renal cell carcinomas (sRCC) are associated with dismal prognosis. Genomic alterations associated with sarcomatoid dedifferentiation are poorly characterized. We sought to define the genomic landscape of sRCC and uncover potentially actionable therapeutic targets. We assessed the genomic landscape of sRCC using targeted panel sequencing including patients with microdissected sarcomatoid and epithelial components. Along with common genomic alterations associated with clear-cell histology, we found that Hippo was one of the most frequently altered pathways in these tumours. Hippo alterations were differentially enriched in sRCC compared to non-sRCC. Functional analysis showed that Hippo members mutations were associated with higher nuclear accumulation of YAP/TAZ, core effectors of the Hippo pathway. In a NF2-mutant sRCC model, YAP1 knockdown and NF2 reconstitution suppressed cell proliferation, tumour growth and invasion, both in vitro and in vivo. Overall, we show that Hippo pathway alterations are a feature of sRCC, and enable the exploration of the Hippo pathway as a novel potential therapeutic target.
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Affiliation(s)
- Gabriel G Malouf
- Department of Medical Oncology, Hôpital Pitié Salpêtrière, APHP, Sorbonne Université, Paris, France. .,Department of Hematology and Oncology, Centre Hospitalier Universitaire Régional de Strasbourg, Institut de Cancérologie de Strasbourg, Strasbourg, France. .,Department of Cancer and Functional Genomics, Institute of Genetics and Molecular and Cellular Biology, Illkirch, France.
| | - Ronan Flippot
- Department of Medical Oncology, Hôpital Pitié Salpêtrière, APHP, Sorbonne Université, Paris, France
| | - Yiyu Dong
- Department of Urology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Renzo G Dinatale
- Department of Urology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ying-Bei Chen
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Xiaoping Su
- Department of Biostatistics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Eva Compérat
- Department of Pathology, Hôpital Tenon, APHP, Sorbonne Université, Paris, France
| | - Morgan Rouprêt
- Department of Urology, Hôpital Pitié Salpêtrière, APHP, Sorbonne Université, Paris, France
| | - Roy Mano
- Department of Urology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Kyle A Blum
- Department of Urology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Hui Yao
- Department of Biostatistics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Roger Mouawad
- Department of Medical Oncology, Hôpital Pitié Salpêtrière, APHP, Sorbonne Université, Paris, France
| | - Jean-Philippe Spano
- Department of Medical Oncology, Hôpital Pitié Salpêtrière, APHP, Sorbonne Université, Paris, France.,Inserm UMRS 1136, Sorbonne Université, Paris, France
| | - David Khayat
- Department of Medical Oncology, Hôpital Pitié Salpêtrière, APHP, Sorbonne Université, Paris, France
| | - Jose A Karam
- Department of Urology, MD Anderson Cancer Center, Houston, TX, USA
| | - Thai H Ho
- Division of Hematology and Medical Oncology, Mayo Clinic, Scottsdale, AZ, USA.,Center for Individualized Medicine, Epigenomics Group, Mayo Clinic, Rochester, MN, USA
| | - Satish K Tickoo
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Paul Russo
- Department of Urology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - James J Hsieh
- Molecular Oncology, Department of Medicine, Siteman Cancer Center, Washington University, St. Louis, MO, USA
| | - Nizar M Tannir
- Department of Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Abraham A Hakimi
- Department of Urology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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van Soldt BJ, Cardoso WV. Hippo-Yap/Taz signaling: Complex network interactions and impact in epithelial cell behavior. WILEY INTERDISCIPLINARY REVIEWS-DEVELOPMENTAL BIOLOGY 2019; 9:e371. [PMID: 31828974 DOI: 10.1002/wdev.371] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/29/2019] [Accepted: 11/15/2019] [Indexed: 12/16/2022]
Abstract
The Hippo pathway has emerged as a crucial integrator of signals in biological events from development to adulthood and in diseases. Although extensively studied in Drosophila and in cell cultures, major gaps of knowledge still remain on how this pathway functions in mammalian systems. The pathway consists of a growing number of components, including core kinases and adaptor proteins, which control the subcellular localization of the transcriptional co-activators Yap and Taz through phosphorylation of serines at key sites. When localized to the nucleus, Yap/Taz interact with TEAD transcription factors to induce transcriptional programs of proliferation, stemness, and growth. In the cytoplasm, Yap/Taz interact with multiple pathways to regulate a variety of cellular functions or are targeted for degradation. The Hippo pathway receives cues from diverse intracellular and extracellular inputs, including growth factor and integrin signaling, polarity complexes, and cell-cell junctions. This review highlights the mechanisms of regulation of Yap/Taz nucleocytoplasmic shuttling and their implications for epithelial cell behavior using the lung as an intriguing example of this paradigm. This article is categorized under: Gene Expression and Transcriptional Hierarchies > Regulatory Mechanisms Signaling Pathways > Cell Fate Signaling Establishment of Spatial and Temporal Patterns > Cytoplasmic Localization.
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Affiliation(s)
- Benjamin J van Soldt
- Columbia Center for Human Development, Department of Medicine, Pulmonary Allergy Critical Care Medicine, Columbia University Irving Medical Center, New York, New York.,Department of Genetics and Development, Columbia University Irving Medical Center, New York, New York
| | - Wellington V Cardoso
- Columbia Center for Human Development, Department of Medicine, Pulmonary Allergy Critical Care Medicine, Columbia University Irving Medical Center, New York, New York.,Department of Genetics and Development, Columbia University Irving Medical Center, New York, New York
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Yes-associated protein regulates podocyte cell cycle re-entry and dedifferentiation in adriamycin-induced nephropathy. Cell Death Dis 2019; 10:915. [PMID: 31801948 PMCID: PMC6892849 DOI: 10.1038/s41419-019-2139-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/02/2019] [Accepted: 11/06/2019] [Indexed: 01/19/2023]
Abstract
Podocytes are terminally differentiated cells with little proliferative capacity. The high expression levels of cell cycle inhibitory proteins, including p21, p27, and p57, play an important role in maintaining the low level of proliferation of mature podocytes. In the present study, we aimed to explore the role of yes-associated protein (YAP) signalling in adriamycin-induced podocyte re-entry into the cell cycle and dedifferentiation. Proliferating cell nuclear antigen (PCNA)-, cyclin-dependent kinase 4 (CDK4)-, and Cyclin D1-positive podocytes were found in mice with adriamycin-induced nephropathy. In vitro, adriamycin administration increased the percentage of cells in S phase and the upregulation of mesenchymal-related marker proteins. CDK4 and cyclin D1 were significantly up-regulated after incubation with adriamycin. Overexpression of YAP in podocytes promoted their entry into the cell cycle; up-regulated cyclin D1, desmin, and snail2 expression and down-regulated Wilms’ tumour 1 (WT1) and nephrin production. Recombinant murine FGF-basic induced podocytes to re-enter the cell cycle, inhibited WT1 and nephrin, and increased desmin and snail2 expression. Pretreating podocytes with verteporfin, an inhibitor of YAP/ TEA domain transcription factor (TEAD), decreased the adriamycin-induced overexpression of cyclin D1 and reduced the ratio of S-phase podocytes. This result was further verified by knocking down YAP expression using RNA interference. In conclusion, adriamycin induced podocytes to re-enter the cell cycle via upregulation of CDK4 and cyclin D1 expression, which was at least partly mediated by YAP signalling. Re-entry into the cell cycle induced the over-expression of mesenchymal markers in podocytes.
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31
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Biliverdin reductase deficiency triggers an endothelial-to-mesenchymal transition in human endothelial cells. Arch Biochem Biophys 2019; 678:108182. [DOI: 10.1016/j.abb.2019.108182] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 10/05/2019] [Accepted: 11/04/2019] [Indexed: 02/07/2023]
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Paddillaya N, Mishra A, Kondaiah P, Pullarkat P, Menon GI, Gundiah N. Biophysics of Cell-Substrate Interactions Under Shear. Front Cell Dev Biol 2019; 7:251. [PMID: 31781558 PMCID: PMC6857480 DOI: 10.3389/fcell.2019.00251] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 10/10/2019] [Indexed: 12/31/2022] Open
Abstract
Cells adhere to substrates through mechanosensitive focal adhesion complexes. Measurements that probe how cells detach from substrates when they experience an applied force connect molecular-scale aspects of cell adhesion with the biophysical properties of adherent cells. Such forces can be applied through shear devices that flow fluid in a controlled manner across cells. The signaling pathways associated with focal adhesions, in particular those that involve integrins and receptor tyrosine kinases, are complex, receiving mechano-chemical feedback from the sensing of substrate stiffness as well as of external forces. This article reviews the signaling processes involved in mechanosensing and mechanotransduction during cell-substrate interactions, describing the role such signaling plays in cancer metastasis. We examine some recent progress in quantifying the strength of these interactions, describing a novel fluid shear device that allows for the visualization of the cell and its sub-cellular structures under a shear flow. We also summarize related results from a biophysical model for cellular de-adhesion induced by applied forces. Quantifying cell-substrate adhesions under shear should aid in the development of mechano-diagnostic techniques for diseases in which cell-adhesion is mis-regulated, such as cancers.
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Affiliation(s)
- Neha Paddillaya
- Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, India
| | - Ashish Mishra
- Soft Condensed Matter Group, Raman Research Institute, Bangalore, India
| | - Paturu Kondaiah
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, India
| | - Pramod Pullarkat
- Soft Condensed Matter Group, Raman Research Institute, Bangalore, India
| | - Gautam I Menon
- The Institute of Mathematical Sciences, Chennai, India.,Homi Bhabha National Institute, Mumbai, India.,Department of Physics, Ashoka University, Sonepat, India
| | - Namrata Gundiah
- Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, India.,Department of Mechanical Engineering, Indian Institute of Science, Bangalore, India
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Pratama MY, Pascut D, Massi MN, Tiribelli C. The role of microRNA in the resistance to treatment of hepatocellular carcinoma. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:577. [PMID: 31807558 DOI: 10.21037/atm.2019.09.142] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hepatocellular carcinoma (HCC) is the second most common cause of cancer-related death with a limited efficacy of treatment for intermediate and advanced stages of the disease. Several therapeutic approaches such as trans-arterial chemoembolization (TACE) with anthracyclines, cisplatin and multikinase inhibitor sorafenib have been appealing choices of treatments yet failed to reach a satisfactory outcome mainly due to the numerous mechanisms that influence patient's response. MicroRNAs (miRNAs) are key regulators of many intracellular processes related to drug resistance. This phenomenon has been linked to the modulation of several complex pathways, ranging from the loss of ability of drug accumulation, protective mechanism of autophagy, adaptive mechanism of cancer cells towards the drugs-induced environment, decrease DNA damage and suppression of downstream events that transduce its signal into apoptosis. We summarize the recent findings on the involvement of miRNAs in various drug resistance-related mechanisms in the development of resistance to anthracyclines, cisplatin and sorafenib therapies. Furthermore, we describe the possible application of miRNAs as circulating biomarkers predicting therapy response in HCC. Thus, the undeniable potential and paramount role of miRNA in drug resistance may eventually lead to improved clinical strategies and outcomes for HCC patients.
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Affiliation(s)
- Muhammad Yogi Pratama
- Fondazione Italiana Fegato, AREA Science Park Bazovizza, Trieste, Italy.,Faculty of Medicine, Universitas Hasanuddin, Makassar, Indonesia
| | - Devis Pascut
- Fondazione Italiana Fegato, AREA Science Park Bazovizza, Trieste, Italy
| | | | - Claudio Tiribelli
- Fondazione Italiana Fegato, AREA Science Park Bazovizza, Trieste, Italy
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Li Y, Yuan F, Wu T, Lu L, Liu J, Feng W, Chen SY. Sulforaphane protects against ethanol-induced apoptosis in neural crest cells through restoring epithelial-mesenchymal transition by epigenetically modulating the expression of Snail1. Biochim Biophys Acta Mol Basis Dis 2019; 1865:2586-2594. [PMID: 31295528 DOI: 10.1016/j.bbadis.2019.07.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/14/2019] [Accepted: 07/06/2019] [Indexed: 12/15/2022]
Abstract
Ethanol-induced apoptosis in neural crest cells (NCCs), a multipotent progenitor cell population, is implicated in the Fetal Alcohol Spectrum Disorders (FASD). Studies have demonstrated that sulforaphane (SFN) can prevent ethanol-induced apoptosis in NCCs. The objective of this study is to investigate whether ethanol exposure can induce apoptosis in NCCs by inhibiting epithelial-mesenchymal transition (EMT) and whether SFN can prevent ethanol-induced apoptosis by epigenetically modulating the expression of Snail1, a key transcriptional factor that promotes EMT. We found that ethanol exposure resulted in a significant increase in apoptosis in NCCs. Co-treatment with SFN significantly reduced ethanol-induced apoptosis. Treatment with SFN also dramatically diminished ethanol-induced changes in the expression of E-cadherin and vimentin, and restored EMT in ethanol-exposed NCCs. In addition, ethanol exposure reduced the levels of trimethylation of histone H3 lysine 4 (H3K4me3) at the promoters of Snail1. SFN treatment diminished the ethanol-induced reduction of H3K4me3 at the promoter regions of the Snail1 gene, restored the expression of Snail1 and down-regulated Snail1 target gene E-cadherin. Knockdown of Snail1 significantly reduced the protective effects of SFN on ethanol-induced apoptosis. These results demonstrate that SFN can protect against ethanol-induced apoptosis by preventing ethanol-induced reduction in the levels of H3K4me3 at the promoters of Snail1, restoring the expression of Snail1 and EMT in ethanol-exposed NCCs.
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Affiliation(s)
- Yihong Li
- Department of Pharmacology and Toxicology, University of Louisville Health Science Center, Louisville, KY 40202, USA; University of Louisville Alcohol Research Center, Louisville, KY 40202, USA.
| | - Fuqiang Yuan
- Department of Pharmacology and Toxicology, University of Louisville Health Science Center, Louisville, KY 40202, USA; University of Louisville Alcohol Research Center, Louisville, KY 40202, USA.
| | - Ting Wu
- Department of Pharmacology and Toxicology, University of Louisville Health Science Center, Louisville, KY 40202, USA; University of Louisville Alcohol Research Center, Louisville, KY 40202, USA
| | - Lanhai Lu
- Department of Pharmacology and Toxicology, University of Louisville Health Science Center, Louisville, KY 40202, USA; University of Louisville Alcohol Research Center, Louisville, KY 40202, USA.
| | - Jie Liu
- Department of Pharmacology and Toxicology, University of Louisville Health Science Center, Louisville, KY 40202, USA; University of Louisville Alcohol Research Center, Louisville, KY 40202, USA.
| | - Wenke Feng
- University of Louisville Alcohol Research Center, Louisville, KY 40202, USA; Department of Medicine, University of Louisville, Louisville, KY 40292, USA.
| | - Shao-Yu Chen
- Department of Pharmacology and Toxicology, University of Louisville Health Science Center, Louisville, KY 40202, USA; University of Louisville Alcohol Research Center, Louisville, KY 40202, USA.
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Tang X, Sun Y, Wan G, Sun J, Sun J, Pan C. Knockdown of YAP inhibits growth in Hep-2 laryngeal cancer cells via epithelial-mesenchymal transition and the Wnt/β-catenin pathway. BMC Cancer 2019; 19:654. [PMID: 31269911 PMCID: PMC6610877 DOI: 10.1186/s12885-019-5832-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 06/13/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Yes-associated protein (YAP) plays a crucial role in tumour development and it is the main effector of the Hippo signalling pathway. However, the mechanism underlying YAP downregulation in laryngeal cancer is still unclear. In our previous study, we found that YAP, compared with adjacent tissues, was expressed higher in laryngeal cancer and was also closely associated with histological differentiation, TNM stage and poor prognosis. METHODS In this study, we attempted to determine whether silenced YAP could downregulate human laryngeal carcinoma Hep-2 cells progression. YAP was downregulated in Hep-2 cells by shRNA, and the malignant ability of Hep-2 was assessed in vitro and in vivo. RESULTS In vitro, CCK-8, colony formation and wound healing assays showed that downregulation of YAP significantly reduced the rates of proliferation, migration, and invasion in Hep-2 cells. Downregulation of YAP distinctly induced G2/M cycle arrest and increased the rate of apoptosis. Accordingly, western blot assay suggested that the expression of DKK1, vimentin and β-catenin was significantly decreased after YAP downregulated treatment, thereby indicating that YAP mediated the EMT programme and the Wnt/β-catenin signalling pathway in carcinoma of the larynx. Furthermore, silencing of YAP suppressed Hep-2 cell tumourigenesis and metastasis in vivo. CONCLUSION In summary, our findings demonstrated the proliferation of YAP downregulation and the invasion of Hep-2 cells via downregulating the Wnt/β-catenin pathway in vitro and in vivo, suggesting that YAP may provide a potential therapeutic strategy for the treatment of laryngeal cancer.
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Affiliation(s)
- Xiaomin Tang
- Department of Otolaryngology-Head and Neck Surgery, The Provincial Hospital affiliated to Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Yuxuan Sun
- Department of Otolaryngology-Head and Neck Surgery, The Provincial Hospital affiliated to Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Ganglun Wan
- Department of Otolaryngology-Head and Neck Surgery, The Provincial Hospital affiliated to Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Jiaqiang Sun
- Department of Otolaryngology-Head and Neck Surgery, The Provincial Hospital affiliated to Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Jingwu Sun
- Department of Otolaryngology-Head and Neck Surgery, The Provincial Hospital affiliated to Anhui Medical University, Hefei, Anhui, People's Republic of China.
| | - Chunchen Pan
- Department of Otolaryngology-Head and Neck Surgery, The Provincial Hospital affiliated to Anhui Medical University, Hefei, Anhui, People's Republic of China.
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36
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Khan K, Makhoul G, Yu B, Schwertani A, Cecere R. The cytoprotective impact of yes-associated protein 1 after ischemia-reperfusion injury in AC16 human cardiomyocytes. Exp Biol Med (Maywood) 2019; 244:802-812. [PMID: 31142144 DOI: 10.1177/1535370219851243] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The Hippo-signaling pathway is a mechanism implicated in cardiomyocyte cytoprotection and regeneration after a myocardial infarction. Yes-associated protein 1, the main effector protein of this pathway, acts as a co-transcriptional activator to promote cardiomyocyte proliferation and survival. However, the biological mechanisms by which yes-associated protein 1 protects the heart post-MI are currently unknown. Here, we propose that yes-associated protein 1 plays a critical role in cardiomyocyte cytoprotection after simulated ischemia-reperfusion injury. AC16 human cardiomyocytes were infected with lentiviral plasmids containing normal human yes-associated protein 1 and a constitutively active form of YAP, YAP1S127A. Cells were exposed to ischemia-reperfusion injury using a hypoxic chamber. Hippo-signaling characterization after ischemia-reperfusion injury was performed via Western blotting and reverse transcriptase polymerase chain reaction. Cell viability, apoptosis, and cellular hypertrophy were assessed as a measure of cytoprotection. The GSK3β inhibitor CHIR99021 was used to investigate cross-talk between Hippo and Wnt-signaling and their role in cytoprotection after ischemia-reperfusion-injury. Ischemia-reperfusion injury resulted in significant decreased expression of the non-phosphorylated Hippo signaling kinases MST1 and LATS1, along with decreased expression of YAP/TAZ. Overexpression of yes-associated protein 1 improved cellular viability, while reducing hypertrophy and apoptosis via the ATM/ATR DNA damage response pathway. Activation of β-catenin in YAP-infected cardiomyocytes synergistically reduced cellular hypertrophy after ischemia-reperfusion-injury. Our findings indicate that yes-associated protein 1 is cytoprotective in AC16 human cardiomyocytes after ischemia-reperfusion injury, which may be mediated by co-activation of the canonical Wnt/β-catenin pathway. Thus, activation of yes-associated protein 1 may be a novel therapeutic to repair the infarcted myocardium. Impact statement Genetically engineering the cells of the heart after myocardial infarction to display a more regenerative phenotype is a promising therapy for heart failure patients. Here, we support a regenerative role for yes-associated protein 1, the main effector protein of the Hippo signaling pathway, in AC16 human cardiomyocytes as a potential therapeutic gene target for cardiac repair after myocardial infarction.
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Affiliation(s)
- Kashif Khan
- Cardiology and Cardiac Surgery, McGill University Health Centre, Montreal, Quebec H4AJ1, Canada
| | - Georges Makhoul
- Cardiology and Cardiac Surgery, McGill University Health Centre, Montreal, Quebec H4AJ1, Canada
| | - Bin Yu
- Cardiology and Cardiac Surgery, McGill University Health Centre, Montreal, Quebec H4AJ1, Canada
| | - Adel Schwertani
- Cardiology and Cardiac Surgery, McGill University Health Centre, Montreal, Quebec H4AJ1, Canada
| | - Renzo Cecere
- Cardiology and Cardiac Surgery, McGill University Health Centre, Montreal, Quebec H4AJ1, Canada
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Zou L, Chen FR, Xia RP, Wang HW, Xie ZR, Xu Y, Yu JH, Wang KH. Long noncoding RNA XIST regulates the EGF receptor to promote TGF-β1-induced epithelial-mesenchymal transition in pancreatic cancer. Biochem Cell Biol 2019; 98:267-276. [PMID: 31013436 DOI: 10.1139/bcb-2018-0274] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND This study focuses on the lncRNA XIST (X inactive-specific transcript), an lncRNA involved in multiple human cancers, and investigates the functional significance of XIST and the molecular mechanisms underlying the epithelial-mesenchymal transition (EMT) in pancreatic cancer (PC). METHODS Clinical specimens from 25 patients as well as 5 human PC cell lines were analyzed for XIST, YAP, and microRNA(miR)-34a by quantitative real-time PCR (qRT-PCR) and immunohistochemistry. To investigate how XIST influences cell proliferation, invasiveness, and apoptosis in PC, we performed the CCK-8 assays, Transwell assays, and flow cytometry. Luciferase reporter assays, qRT-PCR, and Western blot were applied to prove that miR-34a directly binds to XIST. RESULTS Up-regulation of XIST and Yes associated protein (YAP) and down-regulation of miR-34a were consistently observed in the clinical specimens and PC cell lines. Silencing XIST reduced the expression of YAP and suppressed transforming growth factor (TGF)-β1-induced EMT, while over-expression of XIST increased the expression of YAP and promoted EMT. In addition, inhibition of epidermal growth factor receptor (EGFR) hampered the XIST-promoted EMT. The results from the luciferase reporter assays confirmed that miR-34a directly targets XIST and suggested that XIST regulates cell proliferation, invasiveness, and apoptosis in PC by sponging miR-34a. CONCLUSIONS XIST promotes TGF-β1-induced EMT by regulating the miR-34a-YAP-EGFR axis in PC.
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Affiliation(s)
- Lei Zou
- NHC Key Laboratory of Drug Addiction Medicine, Department of Organ Transplant, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Feng-Rong Chen
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Ren-Pin Xia
- NHC Key Laboratory of Drug Addiction Medicine, Department of Organ Transplant, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Hua-Wei Wang
- NHC Key Laboratory of Drug Addiction Medicine, Department of Reproduction and Genetics, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Zhen-Rong Xie
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Yu Xu
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Jue-Hua Yu
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
| | - Kun-Hua Wang
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming 650032, P.R. China
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Yan L, Liu Z, Yin H, Guo Z, Luo Q. Silencing of MEG3 inhibited ox‐LDL‐induced inflammation and apoptosis in macrophages via modulation of the MEG3/miR‐204/CDKN2A regulatory axis. Cell Biol Int 2019; 43:409-420. [PMID: 30672051 DOI: 10.1002/cbin.11105] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 01/19/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Long Yan
- Neurovascular SurgeryThe First Bethune Hospital of Jilin University71 Xinmin Street, Chaoyang DistrictChangchun City130012Jilin ProvincePeople's Republic of China
| | - Zhanchuan Liu
- The Second Hospital of Jilin UniversityChangchun City130012China
| | - Haoyuan Yin
- Neurovascular SurgeryThe First Bethune Hospital of Jilin University71 Xinmin Street, Chaoyang DistrictChangchun City130012Jilin ProvincePeople's Republic of China
| | - Zhenjie Guo
- Neurovascular SurgeryThe First Bethune Hospital of Jilin University71 Xinmin Street, Chaoyang DistrictChangchun City130012Jilin ProvincePeople's Republic of China
| | - Qi Luo
- Neurovascular SurgeryThe First Bethune Hospital of Jilin University71 Xinmin Street, Chaoyang DistrictChangchun City130012Jilin ProvincePeople's Republic of China
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Establishment, molecular and biological characterization of HCB-514: a novel human cervical cancer cell line. Sci Rep 2019; 9:1913. [PMID: 30760827 PMCID: PMC6374403 DOI: 10.1038/s41598-018-38315-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 12/19/2018] [Indexed: 01/28/2023] Open
Abstract
Cervical cancer is the fourth most common cancer in women. Although cure rates are high for early stage disease, clinical outcomes for advanced, metastatic, or recurrent disease remain poor. To change this panorama, a deeper understanding of cervical cancer biology and novel study models are needed. Immortalized human cancer cell lines such as HeLa constitute crucial scientific tools, but there are few other cervical cancer cell lines available, limiting our understanding of a disease known for its molecular heterogeneity. This study aimed to establish novel cervical cancer cell lines derived from Brazilian patients. We successfully established one (HCB-514) out of 35 cervical tumors biopsied. We confirmed the phenotype of HCB-514 by verifying its’ epithelial and tumor origin through cytokeratins, EpCAM and p16 staining. It was also HPV-16 positive. Whole-exome sequencing (WES) showed relevant somatic mutations in several genes including BRCA2, TGFBR1 and IRX2. A copy number variation (CNV) analysis by nanostring and WES revealed amplification of genes mainly related to kinases proteins involved in proliferation, migration and cell differentiation, such as EGFR, PIK3CA, and MAPK7. Overexpression of EGFR was confirmed by phospho RTK-array and validated by western blot analysis. Furthermore, the HCB-514 cell line was sensitive to cisplatin. In summary, this novel Brazilian cervical cancer cell line exhibits relevant key molecular features and constitutes a new biological model for pre-clinical studies.
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Yeldag G, Rice A, Del Río Hernández A. Chemoresistance and the Self-Maintaining Tumor Microenvironment. Cancers (Basel) 2018; 10:E471. [PMID: 30487436 PMCID: PMC6315745 DOI: 10.3390/cancers10120471] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 11/24/2018] [Accepted: 11/27/2018] [Indexed: 12/15/2022] Open
Abstract
The progression of cancer is associated with alterations in the tumor microenvironment, including changes in extracellular matrix (ECM) composition, matrix rigidity, hypervascularization, hypoxia, and paracrine factors. One key malignant phenotype of cancer cells is their ability to resist chemotherapeutics, and elements of the ECM can promote chemoresistance in cancer cells through a variety of signaling pathways, inducing changes in gene expression and protein activity that allow resistance. Furthermore, the ECM is maintained as an environment that facilitates chemoresistance, since its constitution modulates the phenotype of cancer-associated cells, which themselves affect the microenvironment. In this review, we discuss how the properties of the tumor microenvironment promote chemoresistance in cancer cells, and the interplay between these external stimuli. We focus on both the response of cancer cells to the external environment, as well as the maintenance of the external environment, and how a chemoresistant phenotype emerges from the complex signaling network present.
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Affiliation(s)
- Gulcen Yeldag
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, UK.
| | - Alistair Rice
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, UK.
| | - Armando Del Río Hernández
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, UK.
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Liu HY, Nguyen HD, Lin CC. Dynamic PEG-Peptide Hydrogels via Visible Light and FMN-Induced Tyrosine Dimerization. Adv Healthc Mater 2018; 7:e1800954. [PMID: 30369100 DOI: 10.1002/adhm.201800954] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/01/2018] [Indexed: 02/03/2023]
Abstract
Photoresponsive hydrogels have become invaluable 3D culture matrices for mimicking aspects of the extracellular matrix. Recent efforts have focused on using ultraviolet (UV) light exposure and multifunctional macromers to induce secondary hydrogel crosslinking and dynamic matrix stiffening in the presence of cells. This contribution reports the design of a novel yet simple dynamic poly(ethylene glycol)-peptide hydrogel system through flavin mononucleotide (FMN) induced di-tyrosine crosslinking. These di-tyrosine linkages effectively increase hydrogel crosslinking density and elastic modulus. In addition, the degree of stiffening in hydrogels at a fixed PEG macromer content can be readily tuned by controlling FMN concentration or the number of tyrosine residues built-in to the peptide linker. Furthermore, tyrosine-bearing pendant biochemical motifs can be spatial-temporally patterned in the hydrogel network via controlling light exposure through a photomask. The visible light and FMN-induced tyrosine dimerization process produces a cytocompatible and physiologically relevant degree of stiffening, as shown by changes of cell morphology and gene expression in pancreatic cancer and stromal cells. This new dynamic hydrogel scheme should be highly desirable for researchers seeking a photoresponsive hydrogel system without complicated chemical synthesis and secondary UV light irradiation.
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Affiliation(s)
- Hung-Yi Liu
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Han D Nguyen
- Department of Biomedical Engineering, Purdue School of Engineering and Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202, USA
| | - Chien-Chi Lin
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Department of Biomedical Engineering, Purdue School of Engineering and Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202, USA
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Shen J, Cao B, Wang Y, Ma C, Zeng Z, Liu L, Li X, Tao D, Gong J, Xie D. Hippo component YAP promotes focal adhesion and tumour aggressiveness via transcriptionally activating THBS1/FAK signalling in breast cancer. J Exp Clin Cancer Res 2018; 37:175. [PMID: 30055645 PMCID: PMC6064138 DOI: 10.1186/s13046-018-0850-z] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 07/20/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Focal adhesion plays an essential role in tumour invasiveness and metastasis. Hippo component YAP has been widely reported to be involved in many aspects of tumour biology. However, its role in focal adhesion regulation in breast cancer remains unexplored. METHODS Tissue microarray was used to evaluate YAP expression in clinical breast cancer specimens by immunohistochemical staining. Cell migration and invasion abilities were measured by Transwell assay. A cell adhesion assay was used to measure the ability of cell adhesion to gelatin. The focal adhesion was visualized through immunofluorescence. Phosphorylated FAK and other proteins were detected by Western blot analysis. Gene expression profiling was used to screen differently expressed genes, and gene ontology enrichment was performed using DAVID software. The gene mRNA levels were measured by quantitative real-time PCR. The activity of the THBS1-promoter was evaluated by dual luciferase assay. Chromatin immunoprecipitation (ChIP) was used to verify whether YAP could bind to the THBS1-promoter region. The prediction of potential protein-interaction was performed with the String program. The ChIP sequence data of TEAD was obtained from the ENCODE database and analysed via the ChIP-seek tool. The gene expression dataset (GSE30480) of purified tumour cells from primary breast tumour tissues and metastatic lymph nodes was used in the gene set enrichment analysis. Prognostic analysis of the TCGA dataset was performed by the SurvExpress program. Gene expression correlation of the TCGA dataset was analysed via R2: Genomics Analysis and Visualization Platform. RESULTS Our study provides evidence that YAP acts as a promoter of focal adhesion and tumour invasiveness via regulating FAK phosphorylation in breast cancer. Further experiments reveal that YAP could induce FAK phosphorylation through a TEAD-dependent manner. Using gene expression profiling and bioinformatics analysis, we identify the FAK upstream gene, thrombospondin 1, as a direct transcriptional target of YAP-TEAD. Silencing THBS1 could reverse the YAP-induced FAK activation and focal adhesion. CONCLUSION Our results unveil a new signal axis, YAP/THBS1/FAK, in the modulation of cell adhesion and invasiveness, and provides new insights into the crosstalk between Hippo signalling and focal adhesion.
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Affiliation(s)
- Jie Shen
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Beibei Cao
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Yatao Wang
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Chenshen Ma
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Zhuo Zeng
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Liang Liu
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Xiaolan Li
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Deding Tao
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Jianping Gong
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
| | - Daxing Xie
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Av., Wuhan, Hubei 430030 People’s Republic of China
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Zheng H, Yang Y, Ye C, Li PP, Wang ZG, Xing H, Ren H, Zhou WP. Lamp2 inhibits epithelial-mesenchymal transition by suppressing Snail expression in HCC. Oncotarget 2018; 9:30240-30252. [PMID: 30100986 PMCID: PMC6084387 DOI: 10.18632/oncotarget.25367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 11/10/2017] [Indexed: 01/15/2023] Open
Abstract
Lysosomal associated membrane protein 2 (Lamp2) influences a broad range of physiological and pathological processes. However, little is known about the role of Lamp2 in hepatocellular carcinoma (HCC) metastasis. This study found that Lamp2 expression was significantly lower in HCC tissues than in adjacent nontumor tissues (ANTs), and its expression level correlated with HCC metastasis. Low Lamp2 expression was significantly correlated with the AFP serum level (> 20 ng/Ml, P = 0.024), capsular formation (absent, P = 0.024), and microvascular invasion (present, P < 0.001), and low expression of Lamp2 indicated a poor prognosis in HCC. LowLamp2 expression was an independent and significant risk factor for recurrence-free survival (RFS; P < 0.001) and overall survival (OS; P < 0.001) in HCC. In this study, we demonstrated that Lamp2 overexpression inhibited cell motility and invasiveness in vitro and inhibited lung metastasis in vivo. In addition, Lamp2 could reverse the EMT program. Lamp2 silencing by siRNA in HCC cell lines enhanced the expression of mesenchymal markers and decreased the expression of epithelial markers. Consistent with these findings, Lamp2 overexpression had the opposite effects. Mechanistically, we found that Lamp2 could suppress Snail expression, upregulate E-cadherin, and inhibit HCC cell epithelial-mesenchymal transition (EMT).Together, these findings suggest that Lamp2 attenuates EMT by suppressing Snail expression in HCC.
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Affiliation(s)
- Hao Zheng
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Yuan Yang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Chen Ye
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Peng-Peng Li
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Zhen-Guang Wang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Hao Xing
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
| | - Hao Ren
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Second Military Medical University, Shanghai 200433, China
| | - Wei-Ping Zhou
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, China
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Furler RL, Nixon DF, Brantner CA, Popratiloff A, Uittenbogaart CH. TGF-β Sustains Tumor Progression through Biochemical and Mechanical Signal Transduction. Cancers (Basel) 2018; 10:E199. [PMID: 29903994 PMCID: PMC6025279 DOI: 10.3390/cancers10060199] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/12/2018] [Accepted: 06/12/2018] [Indexed: 02/07/2023] Open
Abstract
Transforming growth factor β (TGF-β) signaling transduces immunosuppressive biochemical and mechanical signals in the tumor microenvironment. In addition to canonical SMAD transcription factor signaling, TGF-β can promote tumor growth and survival by inhibiting proinflammatory signaling and extracellular matrix (ECM) remodeling. In this article, we review how TGF-β activated kinase 1 (TAK1) activation lies at the intersection of proinflammatory signaling by immune receptors and anti-inflammatory signaling by TGF-β receptors. Additionally, we discuss the role of TGF-β in the mechanobiology of cancer. Understanding how TGF-β dampens proinflammatory responses and induces pro-survival mechanical signals throughout cancer development is critical for designing therapeutics that inhibit tumor progression while bolstering the immune response.
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Affiliation(s)
- Robert L Furler
- Department of Medicine, Division of Infectious Diseases, Weill Cornell Medicine, 413 E 69th St., Belfer Research Building, New York, NY 10021, USA.
| | - Douglas F Nixon
- Department of Medicine, Division of Infectious Diseases, Weill Cornell Medicine, 413 E 69th St., Belfer Research Building, New York, NY 10021, USA.
| | - Christine A Brantner
- GW Nanofabrication and Imaging Center, Office of the Vice President for Research, George Washington University, Washington, DC 20052, USA.
| | - Anastas Popratiloff
- GW Nanofabrication and Imaging Center, Office of the Vice President for Research, George Washington University, Washington, DC 20052, USA.
| | - Christel H Uittenbogaart
- Departments of Microbiology, Immunology and Molecular Genetics, Medicine, Pediatrics, UCLA AIDS Institute and the Jonsson Comprehensive Cancer Center, University of California, 615 Charles E. Young Drive South, BSRB2, Los Angeles, CA 90095, USA.
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Mediator kinase CDK8/CDK19 drives YAP1-dependent BMP4-induced EMT in cancer. Oncogene 2018; 37:4792-4808. [PMID: 29780169 DOI: 10.1038/s41388-018-0316-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 04/12/2018] [Accepted: 04/17/2018] [Indexed: 01/15/2023]
Abstract
CDK8 is a transcription-regulating kinase that controls TGF-β/BMP-responsive SMAD transcriptional activation and turnover through YAP1 recruitment. However, how the CDK8/YAP1 pathway influences SMAD1 response in cancer remains unclear. Here we report that SMAD1-driven epithelial-to-mesenchymal transition (EMT) is critically dependent on matrix rigidity and YAP1 in a wide spectrum of cancer models. We find that both genetic and pharmacological inhibition of CDK8 and its homologous twin kinase CDK19 leads to abrogation of BMP-induced EMT. Notably, selectively blocking CDK8/19 specifically abrogates tumor cell invasion, changes in EMT-associated transcription factors, E-cadherin expression and YAP nuclear localization both in vitro and in vivo in a murine syngeneic EMT model. Furthermore, RNA-seq meta-analysis reveals a direct correlation between CDK8 and EMT-associated transcription factors in patients. Our findings demonstrate that CDK8, an emerging therapeutic target, coordinates growth factor and mechanical cues during EMT and invasion.
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Jia L, Gu W, Zhang Y, Jiang B, Qiao X, Wen Y. Activated Yes-Associated Protein Accelerates Cell Cycle, Inhibits Apoptosis, and Delays Senescence in Human Periodontal Ligament Stem Cells. Int J Med Sci 2018; 15:1241-1250. [PMID: 30123063 PMCID: PMC6097269 DOI: 10.7150/ijms.25115] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 06/28/2018] [Indexed: 01/06/2023] Open
Abstract
Objectives: To provide insight into the biological effects of activated Yes-associated protein (YAP) on the proliferation, apoptosis, and senescence of human periodontal ligament stem cells (h-PDLSCs). Methods: h-PDLSCs were isolated by the limiting dilution method, and their surface markers were quantified by flow cytometry. Enhanced green fluorescence protein (EGFP)-labeled lentiviral vector was used to activate YAP in h-PDLSCs, then qRT-PCR and Western blotting were used to evaluate the expression level of YAP. Immunofluorescence was used to detect the location of YAP in h-PDLSCs. The proliferation activity was detected by cell counting kit-8 (CCK-8) and 5-ethynyl-2'-deoxyuridine (EdU), and the cell cycle was determined by flow cytometry. Apoptosis was analyzed by Annexin V-APC staining. Cell senescence was detected by β-galactosidase staining. Proteins in ERK, Bcl-2, and p53 signaling pathways were detected by Western blotting. Results: h-PDLSCs were isolated successfully and were positive for human mesenchymal stem cell surface markers. After YAP was activated by lentiviral vector, the mRNA and protein of YAP were highly expressed, and more YAP translocated into the nucleus. When YAP was overexpressed in h-PDLSCs, proliferation activity was improved; early and late apoptosis rates decreased (P<0.05); the proportion of cells in G2/M phases increased (P<0.05), while that in G0/G1 phase decreased (P<0.05); cellular senescence was delayed (P<0.01); the expression of P-MEK, P-ERK, P-P90RSK and P-Msk increased, while the expression of Bcl-2 family members (Bak, Bid and Bik) decreased. Conclusions: Activated YAP promotes proliferation, inhibits apoptosis, and delays senescence of h-PDLSCs. The Hippo-YAP signaling pathway can influence ERK and Bcl-2 signaling pathways.
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Affiliation(s)
- Linglu Jia
- School of Stomatology, Shandong University, Jinan, China.,Shandong provincial key laboratory of oral tissue regeneration, Jinan, China
| | - Weiting Gu
- Department of Obstetrics and Gynecology, Qilu hospital of Shandong University, Jinan, China
| | - Yunpeng Zhang
- School of Stomatology, Shandong University, Jinan, China.,Shandong provincial key laboratory of oral tissue regeneration, Jinan, China
| | - Baoqi Jiang
- School of Stomatology, Shandong University, Jinan, China.,Shandong provincial key laboratory of oral tissue regeneration, Jinan, China
| | - Xu Qiao
- School of Control Science and Engineering, Shandong University, Jinan, China
| | - Yong Wen
- School of Stomatology, Shandong University, Jinan, China.,Shandong provincial key laboratory of oral tissue regeneration, Jinan, China
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Song J, Shi W. The concomitant apoptosis and EMT underlie the fundamental functions of TGF-β. Acta Biochim Biophys Sin (Shanghai) 2018; 50:91-97. [PMID: 29069287 DOI: 10.1093/abbs/gmx117] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 10/01/2017] [Indexed: 01/08/2023] Open
Abstract
TGF-β's multipotent cellular effects and their relations are critical for TGF-β's pathophysiological functions. However, these effects may appear to be paradoxical in understanding TGF-β's functions. Apoptosis and epithelial-mesenchymal transition (EMT) are two fundamental events that are deeply linked to various physiological and disease-related processes. These two major cellular fates are subtly regulated and can be potently stimulated by TGF-β, which profoundly contribute to the biological roles of TGF-β. Moreover, these two events are also indirectly and directly correlated with TGF-β-mediated growth inhibition and are relevant to the current understanding of the roles of TGF-β in tumorigenesis and cancer progression. Although TGF-β-induced apoptosis and EMT can be singly independent cellular events, they can also be mutually exclusive but interrelated concomitant events in various cases. Thus, the modulation of apoptosis and EMT is essential for the seemingly paradoxical functions of TGF-β. However, the concomitant effect of TGF-β on apoptosis and EMT, the balance and regulated alterations of them are still been ignored or underestimated. This review focuses on the TGF-β-induced concomitant apoptosis and EMT. We aim to provide an insight in understanding their significance, balance, and modulation in TGF-β-mediated biological functions.
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Affiliation(s)
- Jianguo Song
- State Key Laboratory of Cell Biology, Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Weiwei Shi
- State Key Laboratory of Cell Biology, Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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Yu S, Jing L, Yin XR, Wang MC, Chen YM, Guo Y, Nan KJ, Han LL. MiR-195 suppresses the metastasis and epithelial-mesenchymal transition of hepatocellular carcinoma by inhibiting YAP. Oncotarget 2017; 8:99757-99771. [PMID: 29245938 PMCID: PMC5725129 DOI: 10.18632/oncotarget.20909] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/08/2017] [Indexed: 01/17/2023] Open
Abstract
MiR-195, a novel cancer-related microRNA, was previously reported to play an important role in many malignancies. This study aimed to investigate the role of miR-195 mediated epithelial-mesenchymal transition (EMT) and the progression of hepatocellular carcinoma (HCC) as well as the underlying mechanisms. Our result demonstrated that miR-195 were significantly down regulated in HCC and its decreased expression is associated with poor clinical features of HCC patients. Oppositely, expression level of YAP was significantly higher in HCC tissues, and the level of YAP in metastatic tissues was significantly higher. We also found that a strong inversely association between low level expression of miR-195 and high level of YAP in HCC tissues. Notably, this study confirmed that miR-195, YAP and their combination were valuable predictors for the prognosis of HCC patients. We also explored that miR-195 inhibits HCC growth and metastatic capacity. Mechanistically, we confirm that miR-195 inhibits the migration, invasion and EMT of HCC cells by suppressing YAP. Lastly, we revealed YAP was not only the downstream of miR-195 in HCC, but also mediated the promoting effects of miR-195 on the metastasis and EMT of HCC cells. Taken together, miR-195 inhibits the metastasis and EMT in HCC by targeting YAP. MiR-195/YAP pathway may potentially act as novel biomarker and attractive therapeutic target in HCC.
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Affiliation(s)
- Shuo Yu
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
| | - Li Jing
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710061, China
| | - Xiao-Ran Yin
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
| | - Min-Cong Wang
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
| | - Yi-Meng Chen
- Department of Engineering Research Center of Bio-diagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
| | - Ya Guo
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
| | - Ke-Jun Nan
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710061, China
| | - Li-Li Han
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province 710004, China
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