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Oh JM, Gangadaran P, Rajendran RL, Hong CM, Lee J, Ahn BC. Different Expression of Thyroid-Specific Proteins in Thyroid Cancer Cells between 2-Dimensional (2D) and 3-Dimensional (3D) Culture Environment. Cells 2022; 11:cells11223559. [PMID: 36428988 PMCID: PMC9688357 DOI: 10.3390/cells11223559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/27/2022] [Accepted: 11/08/2022] [Indexed: 11/12/2022] Open
Abstract
The two-dimensional (2D) monolayer culture as a conventional method has been widely applied in molecular biology fields, but it has limited capability to recapitulate real cell environments, being prone to misinterpretation with poor prediction of in vivo behavior. Recently, the three-dimensional (3D) spheroid culture has been studied extensively. Spheroids are self-assembled cell aggregates that have biomimicry capabilities. The behavior of thyroid cancer under the 3D spheroid culture environment has been studied; however, there are no reports regarding differences in the degree of thyroid cancer cell differentiation under 2D and 3D culture conditions. This study investigated the expression of thyroid differentiation proteins related to iodide-metabolizing mechanisms in thyroid cancer cells under different culture conditions. Four thyroid cancer cell lines and one thyroid follicular epithelial cell line were grown in adherent 2D cell culture and 3D spheroid culture with agarose-coated plates. We observed changes in proliferation, hypoxia, extracellular matrix (ECM), cytoskeleton, thyroid-specific proteins, and thyroid transcription factors. All cell lines were successfully established in the spheroid following cell aggregation. Proliferation considerably decreased, while hypoxia-inducible factor 1-α(HIF1-α) was promoted in 3D spheroids; moreover, 3D spheroids with thyroid cancers showed diminished thyroid differentiation markers, but thyroid follicular epithelial cells revealed either a maintenance or weak decline of protein expression. We verified that the 3D spheroid culture environment can be similar to in vivo conditions because of its alterations in numerous cellular and functional activities, including morphology, cellular proliferation, viability, hypoxia, ECM, cytoskeleton, and thyroid differentiation, compared to the conventional 2D monolayer culture environment. An in vitro experimental study using 3D spheroid culture is ideal for the faster discovery of new drugs.
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Affiliation(s)
- Ji Min Oh
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Prakash Gangadaran
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Ramya Lakshmi Rajendran
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Chae Moon Hong
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu 41944, Korea
| | - Jaetae Lee
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu 41944, Korea
| | - Byeong-Cheol Ahn
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu 41944, Korea
- Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu 41944, Korea
- Correspondence: ; Tel.: +82-53-420-5583; Fax: +82-53-200-6447
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Li Z, Wang Y, Ganan-Gomez I, Colla S, Do KA. A machine learning-based method for automatically identifying novel cells in annotating single-cell RNA-seq data. Bioinformatics 2022; 38:4885-4892. [PMID: 36083008 PMCID: PMC9801963 DOI: 10.1093/bioinformatics/btac617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 01/07/2023] Open
Abstract
MOTIVATION Single-cell RNA sequencing (scRNA-seq) has been widely used to decompose complex tissues into functionally distinct cell types. The first and usually the most important step of scRNA-seq data analysis is to accurately annotate the cell labels. In recent years, many supervised annotation methods have been developed and shown to be more convenient and accurate than unsupervised cell clustering. One challenge faced by all the supervised annotation methods is the identification of the novel cell type, which is defined as the cell type that is not present in the training data, only exists in the testing data. Existing methods usually label the cells simply based on the correlation coefficients or confidence scores, which sometimes results in an excessive number of unlabeled cells. RESULTS We developed a straightforward yet effective method combining autoencoder with iterative feature selection to automatically identify novel cells from scRNA-seq data. Our method trains an autoencoder with the labeled training data and applies the autoencoder to the testing data to obtain reconstruction errors. By iteratively selecting features that demonstrate a bi-modal pattern and reclustering the cells using the selected feature, our method can accurately identify novel cells that are not present in the training data. We further combined this approach with a support vector machine to provide a complete solution for annotating the full range of cell types. Extensive numerical experiments using five real scRNA-seq datasets demonstrated favorable performance of the proposed method over existing methods serving similar purposes. AVAILABILITY AND IMPLEMENTATION Our R software package CAMLU is publicly available through the Zenodo repository (https://doi.org/10.5281/zenodo.7054422) or GitHub repository (https://github.com/ziyili20/CAMLU). SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Ziyi Li
- To whom correspondence should be addressed. or
| | - Yizhuo Wang
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Irene Ganan-Gomez
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Simona Colla
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Kim-Anh Do
- To whom correspondence should be addressed. or
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Evaluation of Lipocalin-2 and Twist expression in thyroid cancers and its relationship with epithelial mesenchymal transition. Ann Diagn Pathol 2022; 59:151973. [DOI: 10.1016/j.anndiagpath.2022.151973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/16/2022] [Accepted: 05/05/2022] [Indexed: 11/19/2022]
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Hypoxia as a Modulator of Inflammation and Immune Response in Cancer. Cancers (Basel) 2022; 14:cancers14092291. [PMID: 35565420 PMCID: PMC9099524 DOI: 10.3390/cancers14092291] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/25/2022] [Accepted: 04/25/2022] [Indexed: 02/01/2023] Open
Abstract
A clear association between hypoxia and cancer has heretofore been established; however, it has not been completely developed. In this sense, the understanding of the tumoral microenvironment is critical to dissect the complexity of cancer, including the reduction in oxygen distribution inside the tumoral mass, defined as tumoral hypoxia. Moreover, hypoxia not only influences the tumoral cells but also the surrounding cells, including those related to the inflammatory processes. In this review, we analyze the participation of HIF, NF-κB, and STAT signaling pathways as the main components that interconnect hypoxia and immune response and how they modulate tumoral growth. In addition, we closely examine the participation of the immune cells and how they are affected by hypoxia, the effects of the progression of cancer, and some innovative applications that take advantage of this knowledge, to suggest potential therapies. Therefore, we contribute to the understanding of the complexity of cancer to propose innovative therapeutic strategies in the future.
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Sharma A, Sinha S, Shrivastava N. Therapeutic Targeting Hypoxia-Inducible Factor (HIF-1) in Cancer: Cutting Gordian Knot of Cancer Cell Metabolism. Front Genet 2022; 13:849040. [PMID: 35432450 PMCID: PMC9008776 DOI: 10.3389/fgene.2022.849040] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/09/2022] [Indexed: 12/20/2022] Open
Abstract
Metabolic alterations are one of the hallmarks of cancer, which has recently gained great attention. Increased glucose absorption and lactate secretion in cancer cells are characterized by the Warburg effect, which is caused by the metabolic changes in the tumor tissue. Cancer cells switch from oxidative phosphorylation (OXPHOS) to aerobic glycolysis due to changes in glucose degradation mechanisms, a process known as “metabolic reprogramming”. As a result, proteins involved in mediating the altered metabolic pathways identified in cancer cells pose novel therapeutic targets. Hypoxic tumor microenvironment (HTM) is anticipated to trigger and promote metabolic alterations, oncogene activation, epithelial-mesenchymal transition, and drug resistance, all of which are hallmarks of aggressive cancer behaviour. Angiogenesis, erythropoiesis, glycolysis regulation, glucose transport, acidosis regulators have all been orchestrated through the activation and stability of a transcription factor termed hypoxia-inducible factor-1 (HIF-1), hence altering crucial Warburg effect activities. Therefore, targeting HIF-1 as a cancer therapy seems like an extremely rational approach as it is directly involved in the shift of cancer tissue. In this mini-review, we present a brief overview of the function of HIF-1 in hypoxic glycolysis with a particular focus on novel therapeutic strategies currently available.
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Affiliation(s)
- Abhilasha Sharma
- Department of Life Science, University School of Sciences, Gujarat University, Ahmedabad, India
| | | | - Neeta Shrivastava
- Shri B.V. Patel Education Trust, Ahmedabad, India
- *Correspondence: Neeta Shrivastava,
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Mechanical stimulation induced osteogenic differentiation of BMSCs through TWIST/E2A/p21 axis. Biosci Rep 2021; 40:222707. [PMID: 32309849 PMCID: PMC7199451 DOI: 10.1042/bsr20193876] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 04/02/2020] [Accepted: 04/16/2020] [Indexed: 12/11/2022] Open
Abstract
The relationship between mechanical force and alveolar bone remodeling is an important issue in orthodontics because tooth movement is dependent on the response of bone tissue to the mechanical force induced by the appliances used. Mechanical cyclical stretch plays an essential role in the cell osteogenic differentiation involved in bone remodeling. However, the underlying mechanisms are unclear, particularly the molecular pathways regulated by mechanical stimulation. In the present study, we reported a dynamic change of p21 level in response to mechanical cyclical stretch, and shRNA-p21 in bone marrow mesenchymal stem cells (BMSCs) induced osteogenic differentiation. The mechanism was mediated through TWIST/E2A/p21 axis. These results supported the mechanical stimulation-induced osteogenic differentiation is negatively regulated by p21.
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Huang C, Chen R, Zheng F, Tang Y, Wang X, Chen Z, Lai X. Inhibitory role of ATF3 in gastric cancer progression through regulating cell EMT and stemness. Cancer Cell Int 2021; 21:127. [PMID: 33608016 PMCID: PMC7893881 DOI: 10.1186/s12935-021-01828-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 02/10/2021] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Gastric cancer (GC) is one of the most common cancers and the third leading cause of cancer related mortality worldwide. The 5-year survival rate is rather low owing to advanced unresectable and distant metastasis. The EMT has been widely implicated in the stemness, metastatic dormancy, and chemoresistance of different solid tumors. Given the fact that activating transcription factor-3 (ATF3) is a member of the ATF/CREB family of transcription factors and its role in regulation of GC recurrence and metastasis remain poorly understood, the aim of the present study was to investigate its potential impact in epithelial-mesenchymal transition (EMT) and cancer stem cell (CSC) properties and GC aggression. METHODS To elucidate the potential role of ATF3 in gastric cancer, we utilized SGC-7901 and MGC-803 gastric cancer cell lines as research models and constructed stable cell lines overexpressing ATF3. We conducted a series of assays including cell proliferation, colony formation, cell migration, tumorsphere formation, and invasion to investigate the functional roles of ATF3 in stemness of gastric cancer. The possible effect of ATF3 on epithelial-mesenchymal transition (EMT) was assessed through flow cytometry and qRT-PCR. In vivo functional effect of upregulation of ATF3 on tumor growth was examined in a mouse xenograft model. RESULTS We found that overexpression of ATF3 inhibited cell proliferation, colony formation, cell migration and invasion. In addition, up-regulation of ATF3 attenuated tumorsphere formation, cell stemness, and potentially decreased expression of EMT markers. Moreover, ATF3 overexpression inhibited tumorigenesis in mouse xenograft model. CONCLUSION Our data suggest a suppressive role of ATF3 in gastric cancer development. Our findings will provide a potential therapeutic strategy and novel drug target for gastric cancer.
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Affiliation(s)
- Chuanqian Huang
- Department of Medical Oncology and Radiotherapy, Ningde Municipal Hospital Affiliated to Ningde Normal University, Ningde, 352000, Fujian, China
| | - Renli Chen
- Department of Hematology and Rheumatism, Ningde Municipal Hospital Affiliated to Ningde Normal University, Ningde, 352000, Fujian, China
| | - Fangjing Zheng
- Department of Medical Oncology and Radiotherapy, Ningde Municipal Hospital Affiliated to Ningde Normal University, Ningde, 352000, Fujian, China
| | - Yirong Tang
- Department of Hematology and Rheumatism, Ningde Municipal Hospital Affiliated to Ningde Normal University, Ningde, 352000, Fujian, China
| | - Xiukang Wang
- Department of Hematology and Rheumatism, Ningde Municipal Hospital Affiliated to Ningde Normal University, Ningde, 352000, Fujian, China
| | - Zichun Chen
- Department of Pharmacy, Ningde Municipal Hospital Affiliated to Ningde Normal University, Ningde, 352000, Fujian, China.
| | - Xiaolan Lai
- Department of Hematology and Rheumatism, Ningde Municipal Hospital Affiliated to Ningde Normal University, Ningde, 352000, Fujian, China.
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Bibi K, Shah MH. Study of Essential and Toxic Metal Imbalances in the Scalp Hair of Thyroid Cancer Patients in Comparison with Healthy Donors. Biol Trace Elem Res 2021; 199:500-512. [PMID: 32405688 DOI: 10.1007/s12011-020-02186-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/06/2020] [Indexed: 12/16/2022]
Abstract
Thyroid cancer is among the most common type of head and neck cancer; diet, age, gender and environmental factors play vital roles in its malignancy. The present study was carried out to assess the imbalances in the contents of trace metals due to onset and progression of thyroid cancer. Scalp hair was used as matrix for the evaluation of toxic and trace metals. Quantification of the metals was done through atomic absorption spectrometry. In comparison with healthy subjects, the thyroid cancer patients revealed significantly higher median levels of Mn (71%), Co (64%), Cr (55%), K (49%), Fe (45%), Mg (42%), Pb (36%), Na (30%), and Ni (26%), while the median level of Zn was considerably lower in the patients. The correlation coefficients among the metals in the patients demonstrated significantly different communal relationships compared with the healthy counterparts. Multivariate methods exhibited noticeably dissimilar apportionment among the metals in the patients than the controls. Significant disparities in the metal levels were also noticed for various types (anaplastic thyroid cancer, follicular thyroid cancer, papillary thyroid cancer, and medullary thyroid cancer) as well as stages (I, II, III, and IV) among the thyroid cancer patients. Majority of the metals revealed perceptible disparities in their contents based on gender, habitat, dietary habits, and smoking habits of the patients and controls. Overall, the study showed significantly divergent distribution and associations of the essential and toxic metal levels in the scalp hair of the patients in comparison with the levels in controls.
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Affiliation(s)
- Kalsoom Bibi
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Munir H Shah
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
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Shentu Y, Jiang H, Liu X, Chen H, Yang D, Zhang J, Cheng C, Zheng Y, Zhang Y, Chen C, Zheng C, Zhou Y. Nestin Promotes Peritoneal Fibrosis by Protecting HIF1-α From Proteasomal Degradation. Front Physiol 2020; 11:517912. [PMID: 33391003 PMCID: PMC7772359 DOI: 10.3389/fphys.2020.517912] [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: 12/06/2019] [Accepted: 11/20/2020] [Indexed: 12/30/2022] Open
Abstract
Background Peritoneal dialysis (PD) is a treatment for end stage renal disease patients, but it can also cause peritoneal fibrosis. Nestin is known as a neural stem cell marker and it has many functions. The hypoxia induced factor (HIF) signaling pathway can be activated under hypoxia conditions, leading to the overexpression of some angiogenesis related genes. The aim of our study is to demonstrate Nestin’s role in the development of peritoneal fibrosis (PF), and to provide a new target (Nestin) to treat PF. Methods PD mice models were constructed by an intraperitoneal administration of PDS at 10 ml/100g/d for 4 weeks. Nestin-positive cells were isolated from peritonea of Nestin-GFP mice by flow cytometry. The relationship of Nestin and HIF1-α-VEGFA pathway was detected by Nestin knockdown, Co-immunoprecipitation and immunofluorescence. Also, proteasomal activity was demonstrated by CHX and MG132 application, followed by Western blotting and Co-immunoprecipitation. Results In our experiments, we found that Nestin expression resulted in PF. Also, HIF1-α/VEGFA pathway was activated in PF. Nestin knockdown reduced the level of HIF1-α. Nestin directly bound to HIF1-α and protected HIF1-α from proteasomal degradation. Overexpression of HIF1-α reverts the fibrosis levels in Nestin-knockdown cells. In brief, Nestin inhibited the degradation of HIF1-α by mitigating its ubiquitination level, leading to the activation of HIF1-α signaling pathway, and eventually promoted PF. Conclusion We found a novel mechanism of PF that Nestin promotes by protecting HIF1-α from proteasomal degradation. Taken together, our key findings highlight a novel mechanism by which the silencing of Nestin hinders HIF1- α -induced PF.
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Affiliation(s)
- Yangping Shentu
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Huanchang Jiang
- Department of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaoyuan Liu
- Department of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hao Chen
- Department of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Dicheng Yang
- Department of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jinqi Zhang
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Chen Cheng
- Department of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yulin Zheng
- Department of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yang Zhang
- Department of Internal Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chaosheng Chen
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chenfei Zheng
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ying Zhou
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Kim MH, Lee TH, Lee JS, Lim DJ, Lee PCW. Hif-1α Inhibitors Could Successfully Inhibit the Progression of Differentiated Thyroid Cancer in Vitro. Pharmaceuticals (Basel) 2020; 13:ph13090208. [PMID: 32847004 PMCID: PMC7558478 DOI: 10.3390/ph13090208] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/21/2020] [Accepted: 08/21/2020] [Indexed: 12/15/2022] Open
Abstract
Hypoxia-inducible factor (HIF)-1α plays an important role in cancer progression. In various cancers, including thyroid cancer, overexpression of HIF-1α is related to poor prognosis or treatment response. However, few studies have investigated the role of HIF-1α inhibition in thyroid cancer progression. We evaluated the utility of the HIF-1α inhibitor IDF-11774 in vitro utilizing two thyroid cancer cell lines, K1 and BCPAP. Both cell lines were tested to elucidate the effects of IDF-11774 on cell proliferation and migration using soft agar and invasion assays. Here, we found that a reduction of HIF-1α expression in BCPAP cells was observed after treatment with IDF-11774 in a dose-dependent manner. Moreover, cell proliferation, migration, and anchorage-independent growth were effectively inhibited by IDF-11774 in BCPAP cells but not in K1 cells. Additionally, invasion of BCPAP but not K1 cells was controlled with IDF-11774 in a dose-dependent manner. Our findings suggest that promoting the degradation of HIF-1α could be a strategy to manage progression and that HIF-1α inhibitors are potent drugs for thyroid cancer treatment.
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Affiliation(s)
- Min-Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 03312, Korea; (M.-H.K.); (J.S.L.)
| | - Tae Hyeong Lee
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea;
| | - Jin Soo Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 03312, Korea; (M.-H.K.); (J.S.L.)
| | - Dong-Jun Lim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence: (D.-J.L.); (P.C.-W.L.); Tel.: +82-2-2045-4249 (P.C.-W.L.)
| | - Peter Chang-Whan Lee
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea;
- Correspondence: (D.-J.L.); (P.C.-W.L.); Tel.: +82-2-2045-4249 (P.C.-W.L.)
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Wei X, Zhu X, Jiang L, Huang X, Zhang Y, Zhao D, Du Y. Recent advances in understanding the role of hypoxia-inducible factor 1α in renal fibrosis. Int Urol Nephrol 2020; 52:1287-1295. [PMID: 32378138 DOI: 10.1007/s11255-020-02474-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 04/15/2020] [Indexed: 12/11/2022]
Abstract
Renal fibrosis is the most common pathological manifestation of chronic kidney disease (CKD), and with numerous influencing factors, its pathogenesis is complex. Epithelial-mesenchymal transition (EMT) is known to promote the progression of renal fibrosis via alterations in the secreted proteome. Moreover, blocking or even reversing EMT can effectively reduce the degree of fibrosis. As such, targeting the key molecules responsible for promoting EMT may be an effective strategy for inhibiting renal fibrosis. Research in recent years has demonstrated that hypoxia-inducible factor 1α (HIF-1α) acts to promote renal fibrosis through regulation of EMT. However, the relationship between HIF-1α and EMT remains incompletely understood. In the present review, the underlying mechanism of the interaction between HIF-1α and EMT is explored to provide novel insight into the pathogenesis of renal fibrosis and new ideas for early targeted intervention.
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Affiliation(s)
- Xuejiao Wei
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Xiaoyu Zhu
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Lili Jiang
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Xiu Huang
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Yangyang Zhang
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Dan Zhao
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Yujun Du
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China.
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12
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Shakib H, Rajabi S, Dehghan MH, Mashayekhi FJ, Safari-Alighiarloo N, Hedayati M. Epithelial-to-mesenchymal transition in thyroid cancer: a comprehensive review. Endocrine 2019; 66:435-455. [PMID: 31378850 DOI: 10.1007/s12020-019-02030-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 07/19/2019] [Indexed: 12/12/2022]
Abstract
The Metastatic progression of solid tumors, such as thyroid cancer is a complex process which involves various factors. Current understanding on the role of epithelial-mesenchymal transition (EMT) in thyroid carcinomas suggests that EMT is implicated in the progression from follicular thyroid cancer (FTC) and papillary thyroid cancer (PTC) to poorly differentiated thyroid carcinoma (PDTC) and anaplastic thyroid cancer (ATC). According to the literature, the initiation of the EMT program in thyroid epithelial cells elevates the number of stem cells, which contribute to recurrent and metastatic diseases. The EMT process is orchestrated by a complex network of transcription factors, growth factors, signaling cascades, epigenetic modulations, and the tumor milieu. These factors have been shown to be dysregulated in thyroid carcinomas. Therefore, molecular interferences restoring the expression of tumor suppressors, or thwarting overexpressed oncogenes is a hopeful therapeutic method to improve the treatment of progressive diseases. In this review, we summarize the recent findings on EMT in thyroid cancer focusing on the main role-players and regulators of this process in thyroid tumors.
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Affiliation(s)
- Heewa Shakib
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sadegh Rajabi
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | | | - Nahid Safari-Alighiarloo
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Hedayati
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Zhou L, Cha G, Chen L, Yang C, Xu D, Ge M. HIF1α/PD-L1 axis mediates hypoxia-induced cell apoptosis and tumor progression in follicular thyroid carcinoma. Onco Targets Ther 2019; 12:6461-6470. [PMID: 31616157 PMCID: PMC6698605 DOI: 10.2147/ott.s203724] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 07/03/2019] [Indexed: 12/20/2022] Open
Abstract
Background Hypoxia-inducible factor 1α (HIF-1α) and programmed cell death-1 protein ligand 1 (PD-L1) are implicated in the metastasis and progression processes of multiple cancers. Hypoxia selectively elevates PD-L1 expression via HIF1α activation in several solid tumors; however, the regulatory effect of HIF1α on PD-L1 in the pathogenesis of follicular thyroid cancer (FTC) remains unclear. This study aims to investigate the regulatory effect of HIF1α on PD-L1 and their potential roles in FTC pathogenesis. Methods Spearman correlation analysis was performed to clarify the relationships between HIF1α and PD-L1 expressions and the clinicopathologic characteristics. The expressions of HIF1α and PD-L1 at mRNA and protein levels were analyzed by qRT-PCR and Western blot. Hypoxia induction and cell transfection were conducted in FTC cells. TUNEL and Annexin V staining were used to detect the cell apoptosis. FTC xenograft tumor models were generated to evaluate the roles of HIF1α and PD-L1 in vivo. Results Here, we found that the expressions of HIF1α and PD-L1 were significantly increased in FTC tissues and were correlated with the FTC clinicopathologic features, such as the tumor size, T stage, TNM staging, and metastasis. In FTC cells, hypoxia-induced increased HIF1α and PD-L1 expression. Knockdown of HIF1α inhibits hypoxia-induced PD-L1 expression and cells apoptosis. Moreover, inhibition of HIF1α or PD-L1 significantly delays tumor growth and metastasis in vivo. Conclusion Hypoxia could promote FTC progression by upregulating HIF1α and PD-L1, which could serve as the molecular targets for FTC treatment.
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Affiliation(s)
- Lingyan Zhou
- Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences , Hangzhou, Zhejiang 310022, People's Republic of China.,Department of Ultrasonography, Cancer Hospital of University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, People's Republic of China
| | - Guofen Cha
- Department of Ultrasonography, People's Hospital of Quzhou Kecheng, Quzhou, Zhejiang 324000, People's Republic of China
| | - Liyu Chen
- Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences , Hangzhou, Zhejiang 310022, People's Republic of China.,Department of Ultrasonography, Cancer Hospital of University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, People's Republic of China
| | - Chen Yang
- Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences , Hangzhou, Zhejiang 310022, People's Republic of China.,Department of Ultrasonography, Cancer Hospital of University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, People's Republic of China
| | - Dong Xu
- Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences , Hangzhou, Zhejiang 310022, People's Republic of China.,Department of Ultrasonography, Cancer Hospital of University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, People's Republic of China
| | - Minghua Ge
- Department of Thyroid and Neck Surgery, People's Hospital of Zhejiang Province, Hangzhou, Zhejiang 310006, People's Republic of China
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14
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Liu J, Huang B, Xiu Z, Zhou Z, Liu J, Li X, Tang X. PI3K/Akt/HIF-1α signaling pathway mediates HPV-16 oncoprotein-induced expression of EMT-related transcription factors in non-small cell lung cancer cells. J Cancer 2018; 9:3456-3466. [PMID: 30310502 PMCID: PMC6171031 DOI: 10.7150/jca.26112] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 08/03/2018] [Indexed: 12/30/2022] Open
Abstract
Background: Our previous studies have demonstrated that human papillomaviruse (HPV)-16 oncoproteins promoted epithelial-mesenchymal transition (EMT), leading to non-small cell lung cancer (NSCLC) progression, but the underlying molecular mechanisms still remain unclear. PI3K/Akt/HIF-1α signaling pathway has been reported to mediate hypoxia-induced EMT. In this study, we further explored the role of PI3K/Akt/HIF-1α signaling pathway in HPV-16 oncoprotein-induced EMT in NSCLC cells. Methods: A549 and NCI-H460 NSCLC cells were transiently transfected with pEGFP-HPV-16 E6 or E7 constructs. Western blotting and RT-qPCR were respectively performed to determine the protein and mRNA expression of EMT-related transcription factors. HPV-16 E6 or E7-transfected NSCLC cells were co-transfected with specific HIF-1α-siRNA or pretreated with different concentrations of LY294002, a specific PI3K inhibitor, followed by the analysis of expression of EMT-related transcription factors. The correlation between HIF-1α and EMT-related transcription factors in NSCLC tissues was analyzed by immunohistochemical staining and Spearman rank correlation coefficient. Results: HPV-16 E6 and E7 oncoproteins upregulated the expression of Slug and Twist1, the EMT-related transcription factors, at both protein and mRNA levels in A549 and NCI-H460 cells. The co-transfection with specific HIF-1α-siRNA, but not the non-specific (NS)-siRNA, significantly abrogated HPV-16 oncoprotein-induced upregulation of ZEB1, Snail1, Slug, and Twist1 at both protein and mRNA levels. Additionally, pretreatment with LY294002 obviously blocked HPV-16 E6- and E7-induced Snail1, Slug, and Twist1 protein expression in A549 and NCI-H460 cells. Further analysis of clinical specimens showed that HIF-1α protein was strongly expressed in NSCLC tissues, which was positively correlated with ZEB1, Snail1, Slug, and Twist1 protein expression. Conclusions: PI3K/Akt/HIF-1α may contribute to the progression of HPV-associated NSCLC via mediating the expression of EMT-related transcription factors in NSCLC cells.
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Affiliation(s)
- Jinhua Liu
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China
| | - Bingyu Huang
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China
| | - Zihan Xiu
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China
| | - Zhiyuan Zhou
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China
| | - Jiao Liu
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China
| | - Xiangyong Li
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China.,Collaborative innovation center for antitumor active substance research and development, Guangdong Medical University, Zhanjiang 524023, P.R. China.,Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan 523808, P.R. China
| | - Xudong Tang
- Institute of Biochemistry and Molecular Biology, Guangdong Medical University, Zhanjiang 524023, P.R. China.,Collaborative innovation center for antitumor active substance research and development, Guangdong Medical University, Zhanjiang 524023, P.R. China.,Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Medical University, Dongguan 523808, P.R. China.,Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan 523808, P.R. China
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15
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Xu Y, Wang X, Huang Y, Ma Y, Jin X, Wang H, Wang J. Inhibition of lysyl oxidase expression by dextran sulfate affects invasion and migration of gastric cancer cells. Int J Mol Med 2018; 42:2737-2749. [PMID: 30226558 PMCID: PMC6192768 DOI: 10.3892/ijmm.2018.3855] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 08/23/2018] [Indexed: 12/15/2022] Open
Abstract
In the present study, the effect of dextran sulfate (DS) on the metastasis and invasion of human gastric cancer cells and its key underlying mechanism were investigated. The levels of hypoxia‑inducible factor 1α (HIF‑1α), transforming growth factor β (TGF‑β) and lysyl oxidase (LOX) expression were evaluated in human gastric cancer and peritumoral tissues by immunohistochemical analysis. Cell proliferation and apoptosis were also examined using the Cell Counting Kit‑8 assay and flow cytometry. The effect of DS on the invasion and migration of BGC‑823 cells was assessed using a Transwell assay. BGC‑823 cells were divided into the control (phosphate‑buffered saline‑treated) and experimental (DS‑treated) groups, and cultured for different times under hypoxic conditions. Subsequently, LOX and TGF‑β expression levels in the cells were measured by immunocytochemistry, immunofluorescence, reverse transcription‑quantitative polymerase chain reaction and western blot analysis. HIF‑1α, TGF‑β and LOX expression levels were significantly higher in human gastric cancer tissues as compared with that in adjacent tissues. DS influenced cell proliferation and apoptosis in a dose‑dependent manner. Furthermore, DS reduced the number of invaded and migrated cells. Under hypoxic conditions, DS reduced HIF‑1α, TGF‑β and LOX expression levels in BGC‑823 cells. After 12 h, the effect of combination of DS and β‑aminopropionitrile (BAPN) on LOX and TGF‑β protein levels was more significant compared with that of DS or BAPN alone. Therefore, DS may inhibit the invasion and migration of human gastric cancer cells under hypoxic conditions by influencing LOX.
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Affiliation(s)
- Yuanyi Xu
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia 750001, P.R. China
| | - Xiaofei Wang
- Department of Pathology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, P.R. China
| | - Yunning Huang
- Department of Gastrointestinal Surgery, Ningxia People's Hospital, Yinchuan, Ningxia 750021, P.R. China
| | - Yanmei Ma
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia 750001, P.R. China
| | - Xiu Jin
- Department of Pathology, Affiliated Hospital of Jining Medical College, Jining, Shandong 272029, P.R. China
| | - Honghong Wang
- Department of Pathology, Ningxia People's Hospital, Yinchuan, Ningxia 750021, P.R. China
| | - Juan Wang
- Department of Pathology, Ningxia Medical University, Yinchuan, Ningxia 750001, P.R. China
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16
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Ma JW, Hung CM, Lin YC, Ho CT, Kao JY, Way TD. Aloe-emodin inhibits HER-2 expression through the downregulation of Y-box binding protein-1 in HER-2-overexpressing human breast cancer cells. Oncotarget 2018; 7:58915-58930. [PMID: 27391337 PMCID: PMC5312285 DOI: 10.18632/oncotarget.10410] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 06/12/2016] [Indexed: 12/12/2022] Open
Abstract
Human epidermal growth factor receptor-2 (HER-2)-positive breast cancer tends to be aggressive, highly metastatic, and drug resistant and spreads rapidly. Studies have indicated that emodin inhibits HER-2 expression. This study compared the HER-2-inhibitory effects of two compounds extracted from rhubarb roots: aloe-emodin (AE) and rhein. Our results indicated that AE exerted the most potent inhibitory effect on HER-2 expression. Treatment of HER-2-overexpressing breast cancer cells with AE reduced tumor initiation, cell migration, and cell invasion. AE was able to suppress YB-1 expression, further suppressing downstream HER-2 expression. AE suppressed YB-1 expression through the inhibition of Twist in HER-2-overexpressing breast cancer cells. Our data also found that AE inhibited cancer metastasis and cancer stem cells through the inhibition of EMT. Interestingly, AE suppressed YB-1 expression through the downregulation of the intracellular integrin-linked kinase (ILK)/protein kinase B (Akt)/mTOR signaling pathway in HER-2-overexpressing breast cancer cells. In vivo study showed the positive result of antitumor activity of AE in nude mice injected with human HER-2-overexpressing breast cancer cells. These findings suggest the possible application of AE in the treatment of HER-2-positive breast cancer.
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Affiliation(s)
- Jui-Wen Ma
- Institute of Biochemistry, College of Life Science, National Chung Hsing University, Taichung, Taiwan
| | - Chao-Ming Hung
- Department of General Surgery, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan.,School of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - Ying-Chao Lin
- Division of Neurosurgery, Buddhist Tzu Chi General Hospital, Taichung Branch, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan.,Department of Medical Imaging and Radiological Science, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
| | - Jung-Yie Kao
- Institute of Biochemistry, College of Life Science, National Chung Hsing University, Taichung, Taiwan
| | - Tzong-Der Way
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung, Taiwan.,Department of Health and Nutrition Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
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17
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Greco A, Auletta L, Orlandella FM, Iervolino PLC, Klain M, Salvatore G, Mancini M. Preclinical Imaging for the Study of Mouse Models of Thyroid Cancer. Int J Mol Sci 2017; 18:E2731. [PMID: 29258188 PMCID: PMC5751332 DOI: 10.3390/ijms18122731] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/05/2017] [Accepted: 12/08/2017] [Indexed: 12/23/2022] Open
Abstract
Thyroid cancer, which represents the most common tumors among endocrine malignancies, comprises a wide range of neoplasms with different clinical aggressiveness. One of the most important challenges in research is to identify mouse models that most closely resemble human pathology; other goals include finding a way to detect markers of disease that common to humans and mice and to identify the most appropriate and least invasive therapeutic strategies for specific tumor types. Preclinical thyroid imaging includes a wide range of techniques that allow for morphological and functional characterization of thyroid disease as well as targeting and in most cases, this imaging allows quantitative analysis of the molecular pattern of the thyroid cancer. The aim of this review paper is to provide an overview of all of the imaging techniques used to date both for diagnosis and theranostic purposes in mouse models of thyroid cancer.
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Affiliation(s)
- Adelaide Greco
- Dipartimento di Scienze Biomediche Avanzate, Università degli Studi di Napoli Federico II, 80131 Napoli, Italy.
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale delle Ricerche-IBB, CNR, 80145 Napoli, Italy.
- CEINGE Biotecnologie Avanzate s.c.ar.l., 80131 Napoli, Italy.
| | | | | | | | - Michele Klain
- Dipartimento di Scienze Biomediche Avanzate, Università degli Studi di Napoli Federico II, 80131 Napoli, Italy.
| | - Giuliana Salvatore
- IRCCS S.D.N., 80134 Napoli, Italy.
- Dipartimento di Scienze Motorie e del Benessere, Università di Napoli Parthenope, 80133 Napoli, Italy.
| | - Marcello Mancini
- Istituto di Biostrutture e Bioimmagini, Consiglio Nazionale delle Ricerche-IBB, CNR, 80145 Napoli, Italy.
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18
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Paolicchi E, Gemignani F, Krstic-Demonacos M, Dedhar S, Mutti L, Landi S. Targeting hypoxic response for cancer therapy. Oncotarget 2017; 7:13464-78. [PMID: 26859576 PMCID: PMC4924654 DOI: 10.18632/oncotarget.7229] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 01/17/2016] [Indexed: 12/21/2022] Open
Abstract
Hypoxic tumor microenvironment (HTM) is considered to promote metabolic changes, oncogene activation and epithelial mesenchymal transition, and resistance to chemo- and radio-therapy, all of which are hallmarks of aggressive tumor behavior. Cancer cells within the HTM acquire phenotypic properties that allow them to overcome the lack of energy and nutrients supply within this niche. These phenotypic properties include activation of genes regulating glycolysis, glucose transport, acidosis regulators, angiogenesis, all of which are orchestrated through the activation of the transcription factor, HIF1A, which is an independent marker of poor prognosis. Moreover, during the adaptation to a HTM cancer cells undergo deep changes in mitochondrial functions such as “Warburg effect” and the “reverse Warburg effect”. This review aims to provide an overview of the characteristics of the HTM, with particular focus on novel therapeutic strategies currently in clinical trials, targeting the adaptive response to hypoxia of cancer cells.
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Affiliation(s)
- Elisa Paolicchi
- Genetics-Department of Biology, University of Pisa, Pisa, Italy
| | | | - Marija Krstic-Demonacos
- School of Environment and Life Sciences, College of Science and Technology, University of Salford, Salford, UK
| | - Shoukat Dedhar
- Department of Integrative Oncology, BC Cancer Research Centre, BC Cancer Agency and Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Luciano Mutti
- School of Environment and Life Sciences, College of Science and Technology, University of Salford, Salford, UK
| | - Stefano Landi
- Genetics-Department of Biology, University of Pisa, Pisa, Italy
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19
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Arnoux G, Pusztaszeri M. "Noninvasive Follicular Thyroid Neoplasm With Papillary-Like Nuclear Features" With Focal Spindle Cell Metaplasia. Int J Surg Pathol 2017; 26:261-265. [PMID: 29212393 DOI: 10.1177/1066896917741548] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
"Noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP) is a recent reclassification of the encapsulated follicular variant of papillary thyroid carcinoma, which is supposed to reflect its indolent clinical behavior and to prevent overtreatment of patients with this neoplasm. The diagnosis of NIFTP can only be made histologically on the surgical specimen according to specific inclusion and exclusion criteria, which requires the examination of the whole nodule and its capsule. Spindle cell proliferations, especially of follicular cell origin, arising within thyroid follicular neoplasms are very rare and may cause diagnostic difficulties. Few reports described spindle cell proliferations arising in follicular thyroid adenoma and papillary thyroid carcinoma. To the best of our knowledge, only one case has been reported in NIFTP so far. In this article, we report a unique case of NIFTP associated with a spindle cell proliferation that was characterized immunohistochemically. Specific issues related to this case are discussed.
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Affiliation(s)
| | - Marc Pusztaszeri
- 1 Geneva University Hospital, Geneva, Switzerland.,Current affiliation: Department of Pathology, Jewish General Hospital and McGill University, 3755 Côte-Sainte-Catherine Road, Montréal, Québec, Canada H3T 1E2
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20
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Tesselaar MH, Smit JW, Nagarajah J, Netea-Maier RT, Plantinga TS. Pathological processes and therapeutic advances in radioiodide refractory thyroid cancer. J Mol Endocrinol 2017; 59:R141-R154. [PMID: 28931558 DOI: 10.1530/jme-17-0134] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 09/20/2017] [Indexed: 12/19/2022]
Abstract
While in most patients with non-medullary thyroid cancer (TC), disease remission is achieved by thyroidectomy and ablation of tumor remnants by radioactive iodide (RAI), a substantial subgroup of patients with metastatic disease present tumor lesions that have acquired RAI resistance as a result of dedifferentiation. Although oncogenic mutations in BRAF, TERT promoter and TP53 are associated with an increased propensity for induction of dedifferentiation, the role of genetic and epigenetic aberrations and their effects on important intracellular signaling pathways is not yet fully elucidated. Also immune, metabolic, stemness and microRNA pathways have emerged as important determinants of TC dedifferentiation and RAI resistance. These signaling pathways have major clinical implications since their targeting could inhibit TC progression and could enable redifferentiation to restore RAI sensitivity. In this review, we discuss the current insights into the pathological processes conferring dedifferentiation and RAI resistance in TC and elaborate on novel advances in diagnostics and therapy to improve the clinical outcome of RAI-refractory TC patients.
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Affiliation(s)
- Marika H Tesselaar
- Department of PathologyRadboud University Medical Center, Nijmegen, The Netherlands
| | - Johannes W Smit
- Internal MedicineDivision of Endocrinology Radboud University Medical Center, Nijmegen, The Netherlands
| | - James Nagarajah
- Radiology & Nuclear MedicineRadboud University Medical Center, Nijmegen, The Netherlands
| | - Romana T Netea-Maier
- Internal MedicineDivision of Endocrinology Radboud University Medical Center, Nijmegen, The Netherlands
| | - Theo S Plantinga
- Department of PathologyRadboud University Medical Center, Nijmegen, The Netherlands
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21
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Hyuga S, Wada H, Eguchi H, Otsuru T, Iwgami Y, Yamada D, Noda T, Asaoka T, Kawamoto K, Gotoh K, Takeda Y, Tanemura M, Umeshita K, Doki Y, Mori M. Expression of carbonic anhydrase IX is associated with poor prognosis through regulation of the epithelial‑mesenchymal transition in hepatocellular carcinoma. Int J Oncol 2017; 51:1179-1190. [PMID: 28849188 DOI: 10.3892/ijo.2017.4098] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 07/03/2017] [Indexed: 11/05/2022] Open
Abstract
Carbonic anhydrase 9 (CA9) is a plasma membrane-associated isoenzyme that catalyzes pH regulation under hypoxic conditions. CA9 is transcriptionally regulated by hypoxia-inducible factor 1. Recent studies reported that hypoxia also promoted the epithelial-mesenchymal transition (EMT) in various cancers. In the present study, we evaluated the relationship between CA9 expression and EMT in vitro with two hepatoma cell lines. We also examined the clinical significance of CA9 expression in 117 consecutive patients that underwent hepatectomies for hepatocellular carcinoma (HCC). We evaluated CA9 expression and EMT induction under hypoxia with quantitative RT-PCR, western blot analysis and immunofluorescence staining, in HuH7 and HepG2 cells. We knocked down CA9 expression with small interfering RNA to evaluate the relationship between CA9 and EMT. We found that hypoxia induced CA9 expression in HCC cells and promoted EMT, evidenced by a loss of E-cadherin and an increase in N-cadherin. Twist, a transcriptional regulator of EMT, was also upregulated with hypoxia. The CA9 deficiency attenuated hypoxia-induced changes in E-cadherin and N-cadherin. Immunohistochemical evaluations of patient samples showed that CA9 was expressed in 50.4% of patients (59/117). However, patients with and without CA9 expression were not significantly different in clinicopathological factors. Nevertheless, a multivariate analysis showed that CA9 expression was an independent factor for both recurrence and prognosis among patients that underwent curative surgery for HCC. In conclusion, this study revealed that CA9 expression was a pivotal predictive factor for poor prognosis after radical surgery for HCC. Moreover, the CA9 regulation of the expression of EMT-related molecules represented a mechanism that enhanced malignant potential.
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Affiliation(s)
- Satoshi Hyuga
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Hiroshi Wada
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Toru Otsuru
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Yoshifumi Iwgami
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Daisaku Yamada
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Takehiro Noda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Tadafumi Asaoka
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Koichi Kawamoto
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Kunihito Gotoh
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Yutaka Takeda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Masahiro Tanemura
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Koji Umeshita
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Masaki Mori
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
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22
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Tajima S, Tabata Y. Preparation of epithelial cell aggregates incorporating matrigel microspheres to enhance proliferation and differentiation of epithelial cells. Regen Ther 2017; 7:34-44. [PMID: 30271850 PMCID: PMC6134895 DOI: 10.1016/j.reth.2017.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 06/10/2017] [Accepted: 07/04/2017] [Indexed: 11/25/2022] Open
Abstract
The objective of this study is to investigate the effect of matrigel microspheres (MM), gelatin hydrogel microspheres (GM), and matrigel-coated GM on the proliferated and biological functions of epithelial cells in cell aggregates incorporating the microspheres. The MM were prepared by a coacelvation method. When mammary epithelial EpH4 cells were cultured with the MM, GM, and matrigel-coated GM in round U-bottom wells of 96-multiwell culture plates which had been coated with poly (vinyl alcohol) (PVA) to suppress the cell adhesion, EpH4 cell aggregates with each microspheres homogeneously incorporated were formed. Higher EpH4 cells proliferation was observed for cell aggregates incorporating MM, GM, and matrigel-coated GM compared with the conventional 3-dimensional (3D) culture method. When examined to evaluate the epithelial differentiation of EpH4 cells, the β-casein expression was significantly higher for the cell aggregates incorporating MM than that of aggregates incorporating GM and matrigel-coated GM or the conventional 3D culture method. It is concluded that the proliferation and differentiation of mammary epithelial EpH4 cells were promoted by the incorporation of MM.
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Affiliation(s)
- Shuhei Tajima
- Department of Biomaterials, Institute for Life and Frontier Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yasuhiko Tabata
- Department of Biomaterials, Institute for Life and Frontier Medical Sciences, Kyoto University, 53 Kawara-cho Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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23
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Zhu L, Zhao Q. Hypoxia-inducible factor 1α participates in hypoxia-induced epithelial-mesenchymal transition via response gene to complement 32. Exp Ther Med 2017; 14:1825-1831. [PMID: 28810656 DOI: 10.3892/etm.2017.4665] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Accepted: 04/10/2017] [Indexed: 12/11/2022] Open
Abstract
The aim of the present study was to explore the function of response gene to complement 32 (RGC-32) in hypoxia-induced epithelial-mesenchymal transition (EMT) in pancreatic cancer. Three kinds of hypoxia-inducible factor 1α (HIF-1α) small interfering (si)RNA were synthesized and the different effects on the expression of HIF-1α were detected by western blotting. In human pancreatic cancer BxPC-3 cells, HIF-1α levels were diminished using siRNA transfection or HIF-1α inhibitor pretreatment, and the expression levels of RGC-32 and EMT-associated proteins were analyzed using reverse transcription-quantitative polymerase chain reaction and western blotting. Subsequently, the protein levels of epithelial marker, E-cadherin, and mesenchymal marker, vimentin, were determined by western blotting. Results demonstrated that HIF-1α-Homo-488 siRNA and HIF-1α-Homo-1216 siRNA diminished the protein level of HIF-1α. Compared with normoxia, hypoxia induced the levels of HIF-1α, RGC-32, N-cadherin and vimentin, but suppressed the expression of E-cadherin and cytokeratins. The inhibition of HIF-1α by HIF-1α-Homo-1216 siRNA transfection or HIF-1α inhibitor repressed hypoxia-induced HIF-1α, RGC-32, N-cadherin and vimentin, but increased the expression of E-cadherin and cytokeratins. When RGC-32 was knocked down, hypoxia-induced vimentin was suppressed; however, hypoxia-suppressed N-cadherin was released. In conclusion, the present results demonstrated that hypoxia induced the expression of HIF-1α to activate the levels of RGC-32, in turn to regulate the expression EMT-associated proteins for EMT. These findings revealed the function of RGC-32 in hypoxia-induced EMT and may have identified a novel link between HIF-1α and EMT for pancreatic cancer therapy.
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Affiliation(s)
- Liang Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Qiu Zhao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
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Antonelli A, La Motta C. Novel therapeutic clues in thyroid carcinomas: The role of targeting cancer stem cells. Med Res Rev 2017; 37:1299-1317. [PMID: 28586525 DOI: 10.1002/med.21448] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 03/13/2017] [Accepted: 03/26/2017] [Indexed: 12/13/2022]
Abstract
Thyroid carcinomas (TCs), the most common endocrine tumors, represent the eighth most common cancer diagnosed worldwide in both women and men. To treat these malignancies, several drugs are now available and a number of novel ones have been enrolling in clinical trials, addressing both oncogenic pathways in cancer cells and angiogenic pathways in tumor endothelial cells. However, their use is not devoid of serious toxicities and their efficacy is limited, being dependent on carcinoma typology and the occurrence of acquired resistance. Accordingly, it is time to recast therapeutic strategies against these types of tumors to get to newer and fully effective drugs. In this perspective, latest findings demonstrate that cancer stem cells (CSCs) represent a challenging target to strike. They possess core traits of self-renewal and differentiation, being resistant to the effects of chemotherapy and radiation and playing a key role in mediating metastasis. Therefore, basic molecular elements sustaining both development of thyroid cancer stem cells and their residence in the stemness condition represent a set of innovative and still unexplored targets to address. In this review, a thorough literature survey has been accomplished, to take stock of mechanisms governing thyroid carcinomas and to point out both their currently available treatments and the novel forthcoming ones. Pubmed, Scifinder and ClinicalTrials.gov were exploited as research applications and registry database, respectively. Original articles, reviews, and editorials published within the last ten years, as well as open clinical investigations in the field, were analyzed to suggest new exciting therapeutic opportunities for people affected by TCs.
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Affiliation(s)
- Alessandro Antonelli
- Dipartimento di Medicina Clinica e Sperimentale, Università di Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Concettina La Motta
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 6, 56126, Pisa, Italy
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Yu T, Tang B, Sun X. Development of Inhibitors Targeting Hypoxia-Inducible Factor 1 and 2 for Cancer Therapy. Yonsei Med J 2017; 58:489-496. [PMID: 28332352 PMCID: PMC5368132 DOI: 10.3349/ymj.2017.58.3.489] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 11/30/2016] [Accepted: 11/30/2016] [Indexed: 12/21/2022] Open
Abstract
Hypoxia is frequently observed in solid tumors and also one of the major obstacles for effective cancer therapies. Cancer cells take advantage of their ability to adapt hypoxia to initiate a special transcriptional program that renders them more aggressive biological behaviors. Hypoxia-inducible factors (HIFs) are the key factors that control hypoxia-inducible pathways by regulating the expression of a vast array of genes involved in cancer progression and treatment resistance. HIFs, mainly HIF-1 and -2, have become potential targets for developing novel cancer therapeutics. This article reviews the updated information in tumor HIF pathways, particularly recent advances in the development of HIF inhibitors. These inhibitors interfere with mRNA expression, protein synthesis, protein degradation and dimerization, DNA binding and transcriptional activity of HIF-1 and -2, or both. Despite efforts in the past two decades, no agents directly inhibiting HIFs have been approved for treating cancer patients. By analyzing results of the published reports, we put the perspectives at the end of the article. The therapeutic efficacy of HIF inhibitors may be improved if more efforts are devoted on developing agents that are able to simultaneously target HIF-1 and -2, increasing the penetrating capacity of HIF inhibitors, and selecting suitable patient subpopulations for clinical trials.
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Affiliation(s)
- Tianchi Yu
- Department of General Surgery, The Hepatosplenic Surgery Center, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Bo Tang
- Department of General Surgery, The Hepatosplenic Surgery Center, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Xueying Sun
- Department of General Surgery, The Hepatosplenic Surgery Center, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Department of Molecular Medicine & Pathology, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand.
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Cancer Stem Cell Quiescence and Plasticity as Major Challenges in Cancer Therapy. Stem Cells Int 2016; 2016:1740936. [PMID: 27418931 PMCID: PMC4932171 DOI: 10.1155/2016/1740936] [Citation(s) in RCA: 249] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/15/2016] [Indexed: 02/06/2023] Open
Abstract
Cells with stem-like properties, tumorigenic potential, and treatment-resistant phenotypes have been identified in many human malignancies. Based on the properties they share with nonneoplastic stem cells or their ability to initiate and propagate tumors in vivo, such cells were designated as cancer stem (stem-like) or tumor initiating/propagating cells. Owing to their implication in treatment resistance, cancer stem cells (CSCs) have been the subject of intense investigation in past years. Comprehension of CSCs' intrinsic properties and mechanisms they develop to survive and even enhance their aggressive phenotype within the hostile conditions of the tumor microenvironment has reoriented therapeutic strategies to fight cancer. This report provides selected examples of malignancies in which the presence of CSCs has been evidenced and briefly discusses methods to identify, isolate, and functionally characterize the CSC subpopulation of cancer cells. Relevant biological targets in CSCs, their link to treatment resistance, proposed targeting strategies, and limitations of these approaches are presented. Two major aspects of CSC physiopathology, namely, relative in vivo quiescence and plasticity in response to microenvironmental cues or treatment, are highlighted. Implications of these findings in the context of the development of new therapies are discussed.
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Yang J, Zhang X, Zhang Y, Zhu D, Zhang L, Li Y, Zhu Y, Li D, Zhou J. HIF-2α promotes epithelial-mesenchymal transition through regulating Twist2 binding to the promoter of E-cadherin in pancreatic cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:26. [PMID: 26842802 PMCID: PMC4741030 DOI: 10.1186/s13046-016-0298-y] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 01/25/2016] [Indexed: 02/05/2023]
Abstract
Background Epithelial-mesenchymal transition (EMT) is a dedifferentiation process that mainly involves in mesenchymal marker upregulation, epithelial maker downregulation and cell polarity loss. Related hypoxia factors play a crucial role in EMT, however, it remains few evidence to clarify the role of HIF-2α in EMT in pancreatic cancer. Method In this study, we investigated the expression of HIF-2α and E-cadherin by immunohistochemistry in 70 pancreatic cancer patients, as well as the correlation to the clinicopathologic characteristics. Then we regulated the expression of HIF-2α in pancreatic cancer cells to examine the role of HIF-2α on invasion and migration in vitro. Finally, we tested the relation of HIF-2α and EMT related proteins by Western blot and determined whether HIF-2α regulated EMT through Twist regulating the expression of E-cadherin by Chromatin immunoprecipitation (ChIP) assay. Results We found that HIF-2α protein was expressed positively in 67.1 % (47/70) of pancreatic cancer tissues and 11.4 % (8/70) of adjacent non-tumor pancreatic tissues, and there was a significant difference in the positive rate of HIF-2α protein between two groups (χ2 = 45.549, P < 0.05). In addition, the staining for HIF-2α was correlated with tumor differentiation (P < 0.05), clinical stage (P < 0.05) and lymph node metastasis (P < 0.05), while E-cadherin expression was only correlated with lymph node metastasis (P < 0.05). HIF-2α promoted cell migration, invasion in vitro, and regulated the expression of E-cadherin and MMPs, which are critical to EMT. Our further ChIP assay suggested that only Twist2 could bind to the promoter of E-cadherin in -714 bp region site, but there is no positive binding capacity in -295 bp promoter region site of E-cadherin. Clinical tissues IHC staining showed that Twist2 and E-cadherin expression had an obviously negative correlation in pancreatic cancer. Nevertheless, it had no obvious correlation between Twist1 and E-cadherin. Conclusion These findings indicated that HIF-2α promotes EMT in pancreatic cancer by regulating Twist2 binding to the promoter of E-cadherin, which meant that HIF-2α and this pathway may be effective therapeutic targets for pancreatic cancer.
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Affiliation(s)
- Jian Yang
- Department of General Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
| | - Xu Zhang
- Department of General Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
| | - Yi Zhang
- Department of General Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
| | - Dongming Zhu
- Department of General Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
| | - Lifeng Zhang
- Department of General Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
| | - Ye Li
- Department of General Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
| | - Yanbo Zhu
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
| | - Dechun Li
- Department of General Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
| | - Jian Zhou
- Department of General Surgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
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Morishita Y, Ookawara S, Hirahara I, Muto S, Nagata D. HIF-1α mediates Hypoxia-induced epithelial-mesenchymal transition in peritoneal mesothelial cells. Ren Fail 2015; 38:282-9. [PMID: 26707495 DOI: 10.3109/0886022x.2015.1127741] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The epithelial-to-mesenchymal transition (EMT) of peritoneal mesothelial cells plays a pivotal role in the development of peritoneal fibrosis. The pathological effects of hypoxia on mesothelial cell EMT have not been fully elucidated. In this study, we, therefore, investigated the effects of hypoxia on EMT in mesothelial cells. Human mesothelial (MeT-5A) cells and primary-cultured rat mesothelial cells were cultured under hypoxic conditions (1% O(2)) for up to 72 h. Changes in cell type were then determined by investigating changes in morphology and in expression of epithelial (E-cadherin and occludin) and mesenchymal (fibronectin-1, vimentin and α-smooth muscle actin) cell markers. In some cases, MeT-5A cells were cultured under hypoxic conditions with a HIF-1α inhibitor and then assessed for changes in morphology and for altered expression of signaling molecules, such as HIF-1α, Snail-1, vascular endothelial growth factor (VEGF), and matrix metalloproteinase-2 (MMP-2). Levels of HIF-1α, Snail-1, VEGF, and MMP-2 in Met-5A cells were increased by hypoxia. Levels of epithelial cell markers were decreased and those of mesenchymal cell markers were increased. Cell morphology also changed from a cobblestone-like monolayer to spindle-shaped fibroblast-like cells in response to hypoxia. Inhibition of HIF-1α signaling by a HIF-1α inhibitor abrogated these changes. The cell marker and morphological changes induced by hypoxia were also observed in primary-cultured rat mesothelial cells. We can conclude that hypoxia induces EMT in mesothelial cells by activating HIF-1α. This finding indicates that hypoxia has pivotal roles in the development of peritoneal fibrosis in peritoneal dialysis patients.
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Affiliation(s)
- Yoshiyuki Morishita
- a Division of Nephrology, Department of Integrated Medicine , Saitama Medical Center, Jichi Medical University , Saitama , Japan
| | - Susumu Ookawara
- a Division of Nephrology, Department of Integrated Medicine , Saitama Medical Center, Jichi Medical University , Saitama , Japan
| | - Ichiro Hirahara
- a Division of Nephrology, Department of Integrated Medicine , Saitama Medical Center, Jichi Medical University , Saitama , Japan
| | - Shigeaki Muto
- b Division of Nephrology, Department of Internal Medicine , Jichi Medical University , Tochigi , Japan
| | - Daisuke Nagata
- b Division of Nephrology, Department of Internal Medicine , Jichi Medical University , Tochigi , Japan
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Zhuo X, Luo H, Chang A, Li D, Zhao H, Zhou Q. Is overexpression of TWIST, a transcriptional factor, a prognostic biomarker of head and neck carcinoma? Evidence from fifteen studies. Sci Rep 2015; 5:18073. [PMID: 26656856 PMCID: PMC4674799 DOI: 10.1038/srep18073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 11/10/2015] [Indexed: 01/14/2023] Open
Abstract
TWIST, a basic helix-loop-helix transcription factor, has been indicated to play a critical role in the progression of numerous malignant disorders. Published data on the significance of TWIST expression in head and neck carcinoma (HNC) risk have yielded conflicting results. Thus, we conducted a quantitative meta-analysis to obtain a precise estimate of this subject. After systematic searching and screening, a total of fifteen studies using immunohistochemistry for TWIST detection were included. The results showed that TWIST positive expression rate in HNC tissues was higher than that in normal tissues. TWIST expression might have a correlation with clinical features such as low differentiation, advanced clinical stage, presence of lymph node metastasis, distant metastasis and local recurrence (P < 0.05) , but not with age, gender, T stage and smoking as well as drinking (P > 0.05). In addition, over-expression of TWIST was a prognostic factor for HNC (HR = 1.92, 95% CI = 1.13–3.25). The data suggested that TWIST might play critical roles in cancer progression and act as a prognostic factor for HNC patients.
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Affiliation(s)
- Xianlu Zhuo
- Post-doctoral scientific research station, Chongqing Cancer Institute, Chongqing, China
| | - Huanli Luo
- Post-doctoral scientific research station, Chongqing Cancer Institute, Chongqing, China
| | - Aoshuang Chang
- Affiliated Hospital of Guiyang Medical University, Guiyang, China
| | - Dairong Li
- Department of Medical Oncology, Chongqing Cancer Institute, Chongqing, China
| | - Houyu Zhao
- Affiliated Hospital of Guiyang Medical University, Guiyang, China
| | - Qi Zhou
- Department of Gynecologic Oncology, Chongqing Cancer Institute, Chongqing, China
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